Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 1 f 34 Dcument Type HygrFlex HF8 Humidity Temperature Transmitter User Guide 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 2 f 34 Dcument Type Table f cntents 1 Overview... 3 2 Dimensinal drawings... 4 3 General descriptin... 4 3.1 Pwer supply ptins... 4 3.2 Prbe inputs... 5 3.3 Measured parameters... 6 3.4 Calculated parameters... 6 3.5 Real time clck... 6 3.6 Data lgging functin... 7 3.7 Analg utputs, relay cntacts and digital interface ptins... 7 3.8 Optinal display and keypad... 8 3.9 Audible alarm (beeper)... 9 3.10 Service cnnectr... 9 3.11 Prtectin grade f mdels with Ethernet interface... 9 3.12 HW4 Sftware cmpatibility... 9 4 User cnfigurable settings and functins... 10 4.1 Functin verview (HF8 and HygrClip 2 prbe)... 10 4.2 Interactin between the HF8 and HygrClip 2 prbe functins... 11 4.3 Cnfiguratin f the analg utput signal type... 12 5 Mechanical installatin... 12 5.1 General guidelines... 12 5.2 HF8 enclsure... 13 5.3 Installatin f the enclsure and prbe... 13 6 Electrical installatin... 14 6.1 General wiring guidelines... 14 6.2 Guidelines fr RS-485 wiring... 15 6.3 Cable grip and cable specificatins... 15 6.4 Wiring... 15 7 Operatin... 20 7.1 Analg utputs... 20 7.2 Digital interface... 20 7.3 Optinal display and keypad... 21 7.4 Frequently used settings... 25 7.5 Data lgging functin... 26 7.6 Relay cntacts... 27 7.7 Audible alarm (beeper)... 27 8 Maintenance... 27 8.1 Service cable... 27 8.2 Lcatin f the service cnnectr (mini USB type)... 27 8.3 Peridic calibratin check f the HygrClip 2 prbe... 28 8.4 HF8 prbe calibratin and adjustment prcedures... 28 8.5 Cleaning r replacing the prbe dust filter... 29 8.6 Validatin f the utput signals transmissin... 30 9 Firmware updates... 30 10 Technical data... 31 10.1 Specificatins... 31 10.2 Dew pint accuracy... 33 11 Accessries... 33 12 Supprting dcuments... 34 13 Dcument releases... 34 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 3 f 34 Dcument Type Applicability: This manual applies t all instruments f the HygrFlex HF8 series with firmware versin 1.x, where 1.x can be 1.0, 1.1, etc. Changes t the last digit f the versin number reflect minr firmware changes that d nt affect the manner in which the instrument shuld be perated. Sftware cmpatibility warning D nt try t cnfigure the HF8 with any versin f the ROTRONIC HW4 sftware lwer than 2.4.0 as this will damage the HF8 firmware and prevent nrmal peratin f the transmitter. 1 Overview The HygrFlex HF8 transmitter series is designed fr fixed installatin in applicatins where high measurement accuracy is required. The HF8 has tw prbe inputs which can be individually cnfigured fr use with a HygrClip 2 plug-in prbe r with a 1-channel analg prbe. The wide assrtment f HygrClip 2 humidity-temperature prbes can meet almst any applicatin requirement. The HygrClip 2 prbes feature well prven, durable sensrs. Digital signal prcessing within the prbe ensures cnsistent prduct perfrmance and als facilitates the task f field maintenance with features such as ptentimeter free digital calibratin, ht-swapping f the prbe, etc. Depending n the HygrClip 2 prbe mdel, the HF8 can measure cnditins within the range f 0 t 100 %RH and -100 t 200 C (-148 t 392 F). The HF8 can be cnfigured t calculate a parameter as dew pint, enthalpy, mixing rati, etc. The HF8 can be rdered fr different types f supply vltage, including DC vltage with galvanic separatin and is available with several cmbinatins f analg utput signals (up t 4), digital interface (RS-485, Ethernet) and relay cntacts (up t 4). Based n the ROTRONIC AirChip 3000 digital technlgy the HF8 series and HygrClip 2 prbes ffer the fllwing user functins: User cnfigurable settings Calculatin f psychrmetric parameters such as the dew r frst pint Humidity temperature calibratin and adjustment Simulatr mde Autmatic humidity sensr test and drift cmpensatin Sensr failure mde Data lgging The HF8 has an internal real time clck and can be used t recrd up t 10,000 pairs f relative humidity and temperature values prvided by a single HygrClip 2 prbe r up t 10,000 data values prvided by a single 1-channel analg prbe. Data lgging by the HF8 adds anther layer f data prtectin when the HF8 is cnnected t netwrk. The ability fr the user t easily update bth the HF8 and HygrClip 2 prbe firmware means that instruments f the HF8 series can be kept up-t-date regarding any future functinality imprvement. 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 4 f 34 Dcument Type 2 Dimensinal drawings Dimensins in mm 3 General descriptin 3.1 Pwer supply ptins The HF8 can be rdered with different pwer supply ptins. Please verify the prduct identificatin label t determine which pwer supply ptin is installed n yur transmitter. a) Optin 1: 15 t 40 VDC r 12 t 28 VAC 50/60 Hz, direct cnnectin With this ptin, the negative (r grund) side f the analg utput signals is tied t the negative side (VDC) r neutral (VAC) f the pwer supply. Depending n the type f utput signal, the HF8 will perate with the fllwing minimum vltage 0 1 V utputs: 5 VDC r 5 VAC 0 5 V utputs: 10 VDC r 8 VAC 0 20 ma r 4 20 ma utputs: 6 VDC r 5 VAC with 0 lad 15 VDC r 12 VAC with 500 lad Typical maximum current cnsumptin: b) Optin 2: 9 t 36 VDC r 7 t 24 VAC 50/60 Hz, galvanically islated With this ptin the HF8 is equipped with an internal pwer mdule that prvides galvanic islatin between pwer and the analg signals. As a result, the negative (r grund) side f the analg utput signals is nt tied with the negative side (VDC) r neutral (VAC) f the pwer supply. 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 5 f 34 Dcument Type c) Optin 3: 85 t 265 VAC, 5 Watt, 50-60 Hz, galvanically islated As with ptin 2, the HF8 is equipped with an internal pwer mdule that prvides galvanic islatin between pwer and the analg signals. As a result, the negative (r grund) side f the analg utput signals is nt tied with the negative side (VDC) r neutral (VAC) f the pwer supply. d) Optin 4: pwer ver a RS-485 netwrk With the exceptin f mdels with any f the galvanically islated pwer supply ptins, the HF8 with RS- 485 interface can be directly pwered frm the main RS-485 data line. In that case the pwer terminals f the HF8 shuld nt be cnnected. e) Optin 5: pwer ver Ethernet (PE) The HF8 is available in a special 100% digital versin (Ethernet interface nly) that allws pwer ver Ethernet (IEEE 802.3af cmpliant) See Technical Data > Specificatins fr the typical current cnsumptin f the HF8 3.2 Prbe inputs The HF8 has tw prbe inputs. Prbe input 2 is the input that is the clsest t the frnt f the transmitter. Using the ROTRONIC HW4 sftware (Device Manager), each prbe input can be cnfigured t accept ne f the fllwing: HygrClip 2 humidity-temperature digital prbe. 1-channel analg prbe (general): T be cmpatible with the HF8 the analg prbe must meet the fllwing requirements: supply vltage: max. 5 VDC, current cnsumptin: max. 10 ma, utput signal: 0 t max. 3.3 VDC. The HF8 uses a 12-bit A/D cnverter t digitize the prbe analg signal and can be cnfigured t measure practically any parameter. Analg pressure prbe: this is a special case f analg prbe and is subject t the same cmpatibility requirements. When analg pressure prbe is selected, the HF8 autmatically uses the signal frm the prbe t calculate any humidity parameter that requires barmetric pressure as an input value (example: mixing rati). 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 6 f 34 Dcument Type Pin-Out Diagram 1: RXD (UART- digital prbe) 2: GND (digital and pwer) 3: V+: digital pbe: 3.3 VDC nminal, analg pbe: maximum 5.0 VDC, 10 ma 4: AGND (analg grund) 5: Nt used 6: 1-channel analg prbe signal : + 0.0 t 3.3 VDC 7: TXD (UART digital prbe) 3.3 Measured parameters Depending n the cnfiguratin f the prbe inputs, the HF8 can measure the fllwing: HygrClip 2 prbe: humidity and temperature. The HC2 prbes measure relative humidity with a ROTRONIC Hygrmer IN1 capacitive sensr and temperature with a Pt100 RTD. Analg prbe (general): any parameter measured by the prbe. The parameter unit must be specified with the HW4 sftware (Device Manager). Analg pressure prbe: the unit used fr barmetric pressure is set with the HW4 sftware > Device Manager > System. 3.4 Calculated parameters When a prbe input is cnfigured t accept a HygrClip 2 digital prbe, the HF8 can calculate any f the fllwing parameters based n the humidity and temperature values measured by the prbe (t select the calculated parameter, use either the keypad r the HW4 sftware > Device Manager): Dew pint (Dp) abve and belw freezing Frst pint (Fp) belw freezing and dew pint abve freezing Wet bulb temperature (Tw) Enthalpy (H) Vapr cncentratin (Dv) Specific humidity (Q) Mixing rati by weight (R) Vapr cncentratin at saturatin (Dvs) Vapr partial pressure (E) Vapr saturatin pressure (Ew) Nte: calculating sme f the abve parameters requires barmetric pressure as an input parameter. When n pressure prbe is cnnected t the HF8, a fixed barmetric pressure value can be specified using either the keypad r the ROTRONIC HW4 sftware. 3.5 Real time clck The HF8 clck keeps track f the date and time and can be adjusted frm the keypad. Using the HW4 sftware, the clck can be synchrnized with the PC date and time. The clck des nt autmatically adjust fr daylight saving time (DST). 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 7 f 34 Dcument Type 3.6 Data lgging functin The HF8 can lg up t 10,000 pairs f relative humidity and temperature values prvided by a single HygrClip 2 prbe r up t 10,000 data values prvided by a single 1-channel analg prbe. Bth prbe inputs can be lgged at the same time and in that case the recrding capacity per prbe is cut in half. Each recrd is autmatically date and time stamped. The calculated parameter cannt be recrded. 3.7 Analg utputs, relay cntacts and digital interface ptins The HF8 can be rdered with any f the fllwing cmbinatins f analg utputs, relay cntacts and digital interface: 4 analg utput signals + 4 relay cntacts (n digital interface). 4 analg utput signals + 4 relay cntacts + RS-485 4 analg utput signals + 2 relay cntacts + RS-485 + Ethernet (wired) Ethernet with PE (cmplies with standard IEEE 802.3af) Nte: mdels with a RS-485 interface can be pwered frm a central vltage surce (15 40 VDC) via the RS-485 main data cable. In that case the HF8 shuld nt be pwered frm any ther surce. 3.7.1 Analg utput signals All 4 analg utputs f the HF8 prvide the same type f signal: 0 20 ma r 4 20 ma r 0 1V r 0 5V r 0 10V. The type f analg signal can be selected glbally fr all utputs after cnnecting the HF8 service cnnectr t a PC running the ROTRONIC HW4 sftware. N adjustment is required after changing the type f utput signal. Using the HW4 sftware, each analg utput can be assciated with any f the tw HF8 prbe inputs and can be made t crrespnd t ne f the fllwing: Relative humidity r parameter measured by an analg 1-channel prbe Temperature Calculated parameter (if enabled) The scale f each analg utput can be set within the numerical limits f -999.99 and 9999.99. The D/A cnverters used t generate the analg utput signals feature a 16-bit reslutin. 3.7.2 RS-485 serial interface The RS-485 interface can be used t cnnect tgether up t 64 devices in a multi-drpped arrangement. In principle, an unlimited number f such netwrks can be mnitred with the HW4 sftware, but each RS-485 multi-drp netwrk is limited t 64 devices. A master device is required t cnnect a RS-485 netwrk t a PC, such as fr example: HF8 transmitter with bth an Ethernet and a RS-485 prt. Cable AC3010 (master substitute) with USB and RS-485 prts. RS-485 Cmpatibility: The HF8 uses the RO-ASCII cmmunicatins prtcl. This prtcl is nt cmpatible with the prtcl used by the previus generatin f ROTRONIC instruments and by the HygrLg HL-NT data lgger. D nt cnnect legacy prducts r the HL-NT data lgger t the same RS-485 multi-drp netwrk as the HF8 transmitter. 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 8 f 34 Dcument Type 3.7.3 Relay cntacts The HF8 is available with up t 4 relay cntacts (SPDT: single ple duble thrw). Cnnectin t a PC running the ROTRONIC HW4 sftware is required t cnfigure each relay cntact. Each relay cntact can be assciated with any f the tw HF8 prbe inputs and can be made t mnitr alarm cnditins assciated with ne f the fllwing: Relative humidity r parameter measured by an analg 1-channel prbe Temperature Calculated parameter (if enabled) A relay utput is energized when the value f the parameter being mnitred crrespnds t a user defined ut-f-limits value. High and lw limits fr the measured and calculated parameters can be defined fr each individual prbe input with the HW4 sftware Device Manager (see E-M-HW4v3-F2-015). The HW4 sftware is als used t cnfigure the perating parameters f each relay such as time delay t energize r de-energize the relay, latching r nn-latching peratin and can als be used t limit peratin f the relays t a time schedule. 3.8 Optinal display and keypad The ptinal LC display ptin f the HF8 has a backlight which can be set t be either permanently n, r t be n fr a few secnds when a key is pressed n the keypad. The backlight can als be disabled. The display shws data frm ne prbe at a time. When bth prbe inputs f the HF8 are being used, the difference between the tw prbes can als be displayed (Delta Prbe). Selectin f the displayed data is dne frm the keypad. The data frm ne prbe r the difference between tw prbes, can be shwn as indicated belw: Standard 3-line Large %RH Temperature Date and time Prbe number %RH Temperature Calculated parameter Prbe number The date and time are nt shwn %RH r temperature r calculated parameter shwn in large characters Date and time Prbe number Bth the parameter and prbe can be changed frm the keypad 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 9 f 34 Dcument Type The display can be cnfigured t shw a trend indicatr n each line: : increasing value : decreasing value Bth arrws are displayed when the value is stable. 3.8.1 Alarm Indicatin n the display Depending n the type f alarm, the display shws either the symbl [! ] t the right f the value r a text at the bttm f the display when the HF8 detects an alarm cnditin: Out-f-limits value (defined with the ROTRONIC HW4 sftware fr each prbe input, includes measured values and calculated parameter). N cmmunicatin with the prbe. Display f fixed values when n prbe is cnnected the input. Easily identified humidity and temperature values can be specified with the HW4 sftware fr each prbe input. Bad RH sensr r majr sensr failure (pen r shrted sensr humidity and temperature) 3.9 Audible alarm (beeper) The HF8 can emit a sund when an alarm cnditin ccurs (ut-f-limit value, lss f cmmunicatin with a prbe, etc.). The audible alarm can be disabled, enabled and cnfigured after cnnecting the HF8 service cnnectr t a PC running the ROTRONIC HW4 sftware. Fr details, see the fllwing HW4 manual: E-M-HW4v3-F2-015. The HF8 ptinal display and keypad d nt prvide access t the audible alarm functin. 3.10 Service cnnectr The service cnnectr is a UART digital interface (Universal Asynchrnus Receiver Transmitter) with a mini- USB type cnnectr. This allws cnnecting the HF8 with a service cable t a PC running the ROTRONIC HW4 sftware. See Maintenance fr the lcatin f the service cnnectr and fr the type f service cable t be used. The service cnnectr is used fr the fllwing: Cnfiguratin f the HF8 Dwnlading data recrded n the HF8 Access t the HygrClip 2 prbe functins Firmware updates Nte: the ptinal digital interface (Ethernet r RS-485) ffers the same functinality as the service cnnectr. 3.11 Prtectin grade f mdels with Ethernet interface The prtectin grade f the enclsure f mdels with an Ethernet interface is nt rated IP65 / NEMA 4. 3.12 HW4 Sftware cmpatibility The HF8 is cmpatible with the Rtrnic HW4 sftware versin 2.4.0 r higher. WARNING: d nt use the HF8 with any HW4 versin lwer than 2.4.0 as this culd damage the HF8 firmware and prevent nrmal peratin. 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 10 f 34 Dcument Type 4 User cnfigurable settings and functins The HF8 can be used just as any cnventinal humidity and temperature transmitter. Making use f the HF8 cnfigurable settings and functins is entirely up t the user and the apprpriate settings depend n the user applicatin. We have prvided belw a shrt descriptin f the HF8 functins and als indicated the factry default settings. 4.1 Functin verview (HF8 and HygrClip 2 prbe) MEASUREMENT ACCURACY AND RELIABILITY Functin Humidity / temperature adjustment Autmatic humidity sensr test and ptinal drift cmpensatin Data recrding by the prbe Data lgging by the HF8 Descriptin 1-pint r multi-pint humidity calibratin r adjustment 1-pint r 2-pint temperature calibratin r adjustment Generate a time stamp fr calibratins and adjustments Retain and view last adjustment date and adjustment values Generate calibratin and adjustment prtcls Tests the humidity sensr fr drift caused by cntaminants and can be used t autmatically apply a crrectin. The test is autmatically carried ut at regular intervals f time. Can be cnfigured, enabled, r disabled The humidity sensr status can be verified either with the HW4 sftware r with the instrument display (if available) and is shwn as Gd, SQ-tuned (crrected fr drift) r Bad (defective) The data recrding functin differs frm a true data lgging functin in the sense that the HygrClip 2 prbe des nt time stamp the data. The data recrding functin can be use t investigate events such as a sensr malfunctin as well as t retrieve data that wuld therwise be lst Start r stp data recrding - up t 2000 value pairs (%RH and temperature). Starting a recrding sessin erases all previusly recrded data The recrding mde and lg interval can be specified When the device is pwered ff, the recrding sessin is paused but nt ended As lng as the recrding sessin has nt been ended, the device autmatically resumes recrding data when pwered up again The recrded data can be dwnladed t a PC with the HW4 sftware, time stamped and viewed The HF8 can lg up t 10,000 pairs f relative humidity and temperature values prvided by a single HygrClip 2 prbe r up t 10,000 data values prvided by a single 1-channel analg prbe. Bth prbe inputs can be lgged at the same time and in that case the recrding capacity per prbe is cut in half. Each recrd is autmatically date and time stamped. The calculated parameter cannt be recrded. 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 11 f 34 Dcument Type MEASUREMENT LOOP VALIDATION Functin Simulatr mde Descriptin Used t make the HF8 generate fixed values fr the humidity, temperature and calculated parameter. Can be cnfigured, enabled r disabled DEVICE SAFEGUARDS Functin Device write prtectin Internal menu access frm keypad Descriptin Used t prtect the HF8 with a passwrd t prevent unauthrized digital access by a digital user. Can be cnfigured, enabled r disabled Used t prevent accidental changes t the HF8 settings and temperature-humidity adjustment by disabling the MENU key n the ptinal keypad. Can be enabled r disabled PROCESS PROTECTION AND PROTECTION OF OTHER DEVICES Functin Limit humidity utput t 100 %RH Out-f-limit value alarm Bad sensr alarm Fail safe mde Descriptin This prbe functin is used t prevent the humidity signal frm exceeding 100 %RH when cndensatin frms n the sensr. Can be enabled r disabled This HF8 functin is used t specify the nrmal range fr humidity, temperature and the calculated parameter depending n the user applicatin. Can be cnfigured, enabled r disabled fr each prbe input. The ut-f-limits alarm functin cntrls the peratin f the ptinal relay utputs. Out-f-limit values trigger a digital alarm which can be als be seen n the ptinal display This is a built-in prbe functin. Cannt be disabled A bad humidity r temperature sensr triggers a digital alarm which can be als be seen n the ptinal HF8 display prvided that the HF8 is set t mnitr prbe alarms This HF8 and prbe functin is used t specify a "safe" fixed value fr humidity and fr temperature in the event f: Lss f cmmunicatin with the prbe (HF8 functin) Sensr failure (prbe functin) Can be cnfigured, enabled r disabled 4.2 Interactin between the HF8 and HygrClip 2 prbe functins It is imprtant t nte that when used tgether, the HF8 transmitter and HC2 prbe (HygrClip 2) cnstitute a 2-cmpnent system. Each system cmpnent has its wn micrprcessr, firmware and functins. Sme f these functins are unique t each system cmpnent. Other functins are fund in bth cmpnents. The functins and settings f the HF8 transmitter and HygrClip 2 prbe (HC2) perate tgether as indicated belw: 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 12 f 34 Dcument Type Functin / Setting HF8 HC2 Ntes Device prtectin X X Individual t the HF8 and HC2 prbe RS-485 address X X Individual t the HF8 and HC2 prbe Device Name X X Calculatin X X Simulatr functin X X system X X Out-f-limits value alarm X X RH sensr test Analg utputs X X User defined descriptin The device name f the HC2 prbe is nt displayed by HW4 and is replaced with the HF8 Input Name Psychrmetric calculatin HF8 setting verrides HC2 prbe setting Generates fixed humidity and / r temperature value When enabled, the HF8 settings verride the HC2 prbe settings The HF8 setting verrides HC2 prbe setting. The HC2 prbe settings still apply when the prbe is used alne Make sure t use the same humidity symbl and the same temperature unit fr bth the HF8 and prbe. The HF8 settings are independent frm the HC2 prbe settings. The HC2 prbe settings have n effect n the HF8 and ut-f-limits values defined at the prbe level d nt generate a HF8 alarm. The RH sensr is tested accrding t the time interval specified fr the prbe (HW4 Device Manager) Parameter and scale The HC2 prbe settings have n effect n the HF8 4.3 Cnfiguratin f the analg utput signal type The type f analg utput signals generated by the HF8 can be cnfigured with the ROTRONIC HW4 sftware after allws cnnecting the HF8 with a service cable t the HW4 a PC. See dcument E-M-HW4v3-F2-015 5 Mechanical installatin 5.1 General guidelines Relative humidity is extremely dependent n temperature. Prper measurement f relative humidity requires that the prbe and its sensrs be at exactly the temperature f the envirnment t be measured. Because f this, the lcatin where yu chse t install the prbe can have a significant effect n the perfrmance f the instrument. The fllwing guidelines shuld guarantee gd instrument perfrmance: a) Select a representative lcatin: install the prbe where humidity, temperature and pressure cnditins are representative f the envirnment t be measured. b) Prvide gd air mvement at the prbe: air velcity f at least 200 ft/ minute (1 meter/secnd) facilitates adaptatin f the prbe t changing temperature. c) Avid the fllwing: (1) Clse prximity f the prbe t a heating element, a cling cil, a cld r ht wall, direct expsure t sun rays, etc. (2) Clse prximity f the prbe t a steam injectr, humidifier, direct expsure t precipitatin, etc. (3) Unstable pressure cnditins resulting frm excessive air turbulence. 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 13 f 34 Dcument Type d) Immerse as much f the prbe as pssible in the envirnment t be measured. e) Prevent the accumulatin f cndensatin water at the level f the sensr leads. Install the prbe s that the prbe tip is lking dwnward. If this is nt pssible, install the prbe hrizntally. 5.2 HF8 enclsure The HF8 enclsure cnsists f a base and a cver held tgether with 4 screws. T pen the enclsure, use a metric 3 mm hex key. Prir t re-assembling the enclsure, verify that the red seal is sitting prperly in its grve n the base. 5.3 Installatin f the enclsure and prbe Munting psitin f the enclsure The enclsure f the HF8 is designed t be munted in a hrizntal psitin with the prbe inputs lcated underneath. Munting hardware fr the enclsure Methd 1: The HF8 is supplied with 2 screws, 2 drywall anchrs and tw rubber washers. The base f the enclsure has 2 screw-wells (see drawing) that are nrmally clsed at the bttm. Use the template prvided with the HF6 t drill munting hles in the wall and insert the drywall anchrs. Place a rubber washer n each screw. Insert a screw in each well and push t pen the bttm f the well. Methd 2: When a DIN-rail (35 mm / 1 3/8 ) is available use part AC5002 (nt included). This is a DIN-rail munting kit cnsisting f 2 clamps that attach t the back f the enclsure with the screws prvided. Munting hardware fr thrugh-wall prbe separated by a length f cable Use parts AC1303-M (cmpressin fitting) and AC1305 (flange) t hld and seal the prbe when munted thrugh a wall (see Accessries). 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 14 f 34 Dcument Type 6 Electrical installatin 6.1 General wiring guidelines Pwer supply wiring Heavy machinery and instrumentatin shuld nt share the same pwer supply wiring. If this cannt be avided, nise filters and surge prtectrs shuld be used. Mst UPS devices have thse features already integrated. Electrical Safety Warning The HF8 transmitter series includes mdels designed t perate with a supply vltage f 85 265 VAC. Fr safety reasns, the electrical installatin f these mdels shuld be designed s as t prvide adequate prtectin in the frm f an external circuit breaker, switch, fuse r ther means f safely separating the transmitter frm the supply vltage. Apprpriate safety warnings and instructins shuld be lcated by the transmitter t prevent electrical shck when the transmitter enclsure is pen. General guidelines fr signal cables The fllwing guidelines are derived frm Eurpean Standard EN 50170 fr the transmissin f signals by cpper wires. When planning an installatin, the rules prvided by EN 50170 shuld be fllwed under cnsideratin f lcal circumstances t determine the psitin f machines and equipment. All ROTRONIC prducts are tested fr Electrmagnetic Cmpatibility accrding t EMC Directive 2004/106/EG and fllwing Eurpean standards: - EN 61000-6-1: 2001, EN 61000-6-2: 2005 - EN 61000-6-3: 2005, EN 61000-6-4: 2001 + A11 Whenever the level f electrmagnetic interference is expected t be high, bth the instruments and signal cables shuld be placed as far away as pssible frm the surce f interference. In general, signal cables shuld be installed in bundles r channels / cnduits, separate frm ther cables as indicated in the table belw: Bus signals such as RS485 Data signals fr PCs, printers etc. shielded analg inputs unshielded direct current (<= 60V) shielded prcess signals (<= 25 V) unshielded alternate current (<= 25V) caxial cables fr CRT mnitrs in cmmn bundles r channels / cnduits direct current frm 60 V t 400 V (unshielded) alternate current frm 25V t 400 V (unshielded) in separated bundles r channels / cnduits, withut minimum distance 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 15 f 34 Dcument Type direct and alternate current > 400 V (unshielded) Telephne lines lines leading int EX-rated areas in separated bundles r channels / cnduits, withut minimum distance Lightning prtectin Cabling in areas with a risk f lightning requires a lightning prtectin. Fr cabling undergrund in between buildings, we recmmend the use f special fiber ptic cables. If this is nt pssible, use cpper cables that are suitable fr undergrund installatin. 6.2 Guidelines fr RS-485 wiring See dcument E-DV04-RS485.01: RS485 Netwrk Installatin and Start-up Guidelines 6.3 Cable grip and cable specificatins The HF8 is supplied either with ne M16 sealing cable grip r with a ½ cnduit adapter. The M16 cable grip prvides effective sealing nly with cables having the prper utside diameter. Preferably, use a cable with an utside diameter f 6 t 7 mm (0.236 t 0.275 inch) with 18 AWG wires. 6.4 Wiring 6.4.1 Electrical diagrams Nte: the fllwing diagrams apply t the HF8 with any f the galvanically islated pwer supply ptins. HF8 analg vltage utputs The maximum permissible cable length can be determined under cnsideratin f the vltage drp caused by the current flwing t the devices cnnected t the unit. The vltage drp in the cable depends bth n cable resistance and n the equivalent resistance f the devices cnnected in parallel t the unit. The ttal resistance cnnected t each unit utput shuld be at least 1000 hms. Cable resistance shuld nt be mre than 1/1000 f the lad resistance. 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 16 f 34 Dcument Type HF8 analg current utputs The maximum permissible cable length, cnnecting the unit t ther devices, is determined by the ttal resistance resulting frm the additin f the cable resistance and that f the devices cnnected in series with the unit. This resistance shuld nt exceed 500 hms. Operatin f the HF8 des nt require all current lps t be clsed. Using the ROTRONIC HW4 sftware, any unused utput f the HF8 can be disabled. HF8 relay cntacts 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 17 f 34 Dcument Type 6.4.2 Terminal blck diagram (all mdels) Terminal Blcks K1 and K2 (analg utputs) Descriptin K1-1: GND Output signal 1 (-) see als 6.4.3 K1-2: GND Output signal 2 (-) see als 6.4.3 K1-3: GND Output signal 3 (-) see als 6.4.3 K1-4: GND Output signal 4 (-) see als 6.4.3 K2-1: OUT 1 Output signal 1 (+) K2-2: OUT 2 Output signal 2 (+) K2-3: OUT 3 Output signal 3 (+) K2-4: OUT 4 Output signal 4 (+) Terminal Blck K3 (RS-485) K3-1: V+ Descriptin VDC (+), when HF8 is pwered frm RS-485 data cable 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 18 f 34 Dcument Type K3-2: GND VDC (-), when HF8 is pwered frm RS-485 data cable K3-3: D+ RS-485 + K3-4: D- RS-485 - Terminal blck K3 (RS-485):, terminals K3-1 and K3-2 can be used t pwer the HF8 frm a 15 t 24 VDC pwer supply cnnected t the RS-485 main data line. In this case, d nt use terminals K6-1 and K6-2 (nrmally used t pwer the HF8). Terminal Blck K4 (Relay 3) K4-1: NC K4-2: COM K4-3: NO Descriptin Nrmally clsed (relay nt energized) Cmmn Nrmally pen (relay nt energized) Terminal Blck K5 (Relay 4) K5-1: NC K5-2: COM K5-3: NO Descriptin Nrmally clsed (relay nt energized) Cmmn Nrmally pen (relay nt energized) Terminal Blck K6 (pwer Supply) K6-1: - K6-2: + Descriptin Prtective grund Pwer supply: VDC (+) r VAC (Phase) K6-3: - Pwer supply: VDC (-) r VAC (neutral) see als 6.4.3 Terminal Blck K7 (Relay 1) K7-1: NC K7-2: COM K7-3: NO Descriptin Nrmally clsed (relay nt energized) Cmmn Nrmally pen (relay nt energized) 2010; Rtrnic AG E-M-HF8-V1_11
Rtrnic AG Bassersdrf, Switzerland Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Instructin Manual Page 19 f 34 Dcument Type Terminal Blck K8 (Relay 2) K8-1: NC Descriptin Nrmally clsed (relay nt energized) K8-2: COM Cmmn K8-3: NO Nrmally pen (relay nt energized) 6.4.3 Pwer grund and analg signal grund Depending n the pwer supply ptin, the negative side f the analg utput signals is either tied t r islated frm the negative f the pwer supply (VDC) r the neutral (VAC). Please see 3.1 fr mre details. Nte: the prtective grund (terminal blck K6) is nt tied t the negative f the pwer supply (VDC) r the neutral (VAC). 6.4.4 Grunding We generally recmmend grunding the (-) side f the pwer supply, especially if the electrnics will be subjected t a lw humidity envirnment (35 %RH r less). 6.4.5 RS-485 wiring example with pwer via main data line In the fllwing example, ne HF8 is the RS-485 master and is cnnected t an Ethernet netwrk. The ther HF8 transmitters are RS-485 slaves. All units are cnnected t the RS-485 data cable using a T junctin bx AC3021. Pwer is centrally supplied t all units via the RS-485 data cable frm a single DC vltage surce. NOTE: this example des nt apply t mdels with any f the galvanically islated pwer supply ptins 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 20 f 34 Dcument Type 7 Operatin 7.1 Analg utputs Use the ROTRONIC HW4 sftware t cnfigure the HF8 as desired, cmplete the mechanical and electrical installatin, cnnect the prbe and simply pwer up the HF8. 7.2 Digital interface The HF8 uses the RO-ASCII cmmunicatins prtcl and des nt ffer any ther ptin. The different types f digital interface available with the HF8 are best used with a PC with the HW4 sftware installed (versin 2.4.0 r higher). In principle, using an applicatin ther than HW4 is limited t reading measurement data frm the HF8 and cmmunicatin is limited t the RDD (data request) and REN (RS-485 address change) cmmands. These cmmands described separately in dcument E-M-AC3000-CP. IMPORTANT: Depending n the type f digital interface, either the PC r the HF8 must be cnfigured by the user as indicated belw. 7.2.1 Ethernet (TCP/IP) interface Prir t cnnecting the HF8 t an active Ethernet netwrk yu must cnfigure the TCP/IP settings f the HF8 using either the HW4 sftware (versin 2.4.0 r higher) r the TCP/IP cnfiguratin tl available frm www.rtrnic-humidity.cm. Fr instructins see the HW4 manual E-M-HW4v3-Main ( 7.4) and technical nte IN-E-TCPIP-Cnf WARNING: Cnnecting a device t an active Ethernet netwrk can disrupt cmmunicatins n the netwrk. Befre cnnecting the HF8, make sure that it is prperly cnfigured fr yur netwrk 7.2.2 RS-485 serial interface (multi-drp) Instructins fr using the HF8 with a RS-485 netwrk are prvided in the fllwing manuals: E-M-HW4v3-Main ( 7.5), E-M-HW4v3-F2-015 and E-DV04-RS485.01. Ntes: Instruments cnnected t the same RS-485 netwrk must use the same baud rate and each instrument must be given a unique RS-485 address (the address requirement applies t the HF8 but nt t its prbes) RS-485 Cmpatibility: The HF8 uses the RO-ASCII cmmunicatins prtcl. This prtcl is nt cmpatible with the prtcl used by bth the previus generatin f ROTRONIC prducts and by the HygrLg HL-NT data lgger. D nt cnnect legacy prducts r the HL-NT data lgger t the same RS- 485 netwrk as HF8. The specificatins f the RS-485 interface are as fllws: Baud rate : 19200 Parity : nne Data bits : 8 Stp bits : 1 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 21 f 34 Dcument Type 7.3 Optinal display and keypad 7.3.1 Display mdes The LC display has a backlight which can be set t be n all the time r whenever a key is pressed. The backlight can als be disabled. Using the HF8 Menu > Device Settings > Display Settings, the display mde can be changed as shwn belw: Standard: 3-line display: Large: %RH Temperature Date and time %RH Temperature Calculated parameter N date and time Bth the parameter and prbe can be changed with the UP arrw key r the DOWN arrw key The display can als be cnfigured t shw a trend indicatr n each line: : increasing value : decreasing value In the event f an alarm the symbl [! ] appears t the right f the value. The bttm f the display shws the date and time as well as which prbe is currently selected. A diskette symbl appears whenever the data lgging functin f the HF8 is active. 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 22 f 34 Dcument Type 7.3.2 Keypad MENU Activates the internal menu. Press this key again t g back t the previus submenu r t exit the menu ENTER When the menu is active, use t cnfirm the selectin f a menu item, effect a change f settings and cnfirm any change In the HP23 Standard Mde, use t capture the current %RH and temperature data t ne f the 8 data bins In the HP23 AW Mde, use t start, hld r stp the water activity measurement functin - / + Changes either the prbe r the parameter being displayed (including the delta prbe) Changes the data-bin used t capture data When the menu is active, use t navigate the menu, make a selectin r change a value Nte: Unauthrized access t the menu can be prevented by disabling the display menu setting (use the HW4 sftware > Device Manager > Display) 7.3.3 Internal menu Main Menu Menu Items Submenu Items Selectins r Infrmatin Device Inf Serial Nbr Serial number Ntes Versin Firmware versin Type Device type Name Device name User defined 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 23 f 34 Dcument Type Main Menu Menu Items Submenu Items Selectins r Infrmatin Ntes Device Settings Display Settings Trend ON / OFF Trend indicatin n the display Decimals 1 r 2 Display reslutin Cntrast LC display cntrast adjustment Back Light Key Press/ON/OFF Display backlight mde Mde Standard H+T+Calc Large See Display Delta Pbe ON / OFF Fr each parameter, displays the difference between prbe 1 and prbe 2 Lcal Settings Date Fmt dd mm yyyy mm dd yyyy yyyy mm dd Date frmat Separatr. r / Date separatr Time Fmt 24h / 12 h Time frmat Sys Metric / English system Input 1 Pbe Type HygrClip Analg Pressure Prbe type Calc Calculatin HygrClip prbe nly U min (mv) U max (mv) Range Min Range Max Input 2 See Input 1 See Input 1 Analg prbe vltage utput range Analg prbe vltage utput range Analg prbe measuring range Analg prbe measuring range Pressure Date Time Fixed barmetric pressure value used as an input fr sme psychrmetric calculatins Manual date setting Manual time setting 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 24 f 34 Dcument Type Main Menu Prbe 1 (applies t HygrClip 2 prbe nly) Prbe 2 Menu Items Inf Submenu Items Serial Nbr Versin Name Selectins r Infrmatin Firmware versin Humi Adjust Acquired Pints Lists the cal. pints present in the prbe memry (a max. f 10 pints are shwn) Acquire ( Ref = Prbe) Acquire (Enter Ref) Manual entry: knwn reference envirnment Ntes User defined (HW4) Additinal Optins: Clear all cal. pints Clear the last pint Saves value measured by prbe 2 as a cal. pint Saves value entered manually as a cal. pint Adjust Adjusts the prbe Effect depends n number f calibratin pints in prbe memry Reset t Factry Temp Adjust Acquired Pints Lists the cal. pints present in the prbe memry (a max. f 2 pints are shwn) Acquire ( Ref = Prbe) Acquire (Enter Ref) Manual entry: knwn reference envirnment Returns the prbe t the initial factry adjustment Additinal Optins: Clear all cal. pints Clear the last pint Saves value measured by prbe 2 as a cal. pint Saves value entered manually as a cal. pint Adjust Adjusts the prbe Effect depends n number f calibratin pints in prbe memry Reset t Factry See Prbe 1 Returns the prbe t the riginal factry adjustment (applies t HygrClip 2 prbe nly) See Prbe 1 See Prbe 1 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 25 f 34 Dcument Type Main Menu Data Lgging Menu Items Start Recrding Stp Recrding Settings Cannt be changed while the HF8 is recrding data Submenu Items Interval Selectins r Infrmatin Recrding Samples Interval Mde Ntes Recrding (ON / OFF) Nbr f recrds Lg Interval Mde: Start Stp / Lp Data lgging by the HF8 (max. 10,000 H+T recrds per prbe) Lg interval: 5 sec t 1 h Mde Start-Stp / Lp Start- Stp: the recrding stps when the memry is full Lp: when the memry is full the ldest recrd is dumped t make rm fr the new recrd Prbe 1 Prbe 2 ON / OFF ON / OFF NOTE: use the MENU key t g back ne step frm any sub-menu r t exit the entire menu (this may require several key presses). 7.4 Frequently used settings 7.4.1 system Press the MENU key and select Device Settings > Lcal Settings > Sys. Press ENTER t activate the Sys menu item, use the [+] r [-] key t change the unit system. Press ENTER t cnfirm and press MENU t exit. The HW4 sftware can als be used t change the unit system. 7.4.2 Date and time Press the MENU key and select Device Settings > Date r Time. Press ENTER t activate either the Date r the Time menu item. Use the [+] r [-] key t change the Date r the Time. After each change, the cursr mves t the right. When dne, press ENTER t cnfirm and press MENU t exit. T change either the date r the time frmat, Press the MENU key and select Device Settings > Lcal Settings > Date Fmt r Time Fmt. Press ENTER t activate either the Date Fmt r the Time Fmt menu item, use the [+] r [-] key t change the Date r the Time frmat. When dne, press ENTER t cnfirm and press MENU t exit. The HW4 sftware can als be used t set the clck f the HF8 t the PC date and time. 7.4.3 Select the calculated parameter fr a prbe input The calculated parameter is available nly when the input is set fr a digital HygrClip 2 prbe. Press the MENU key and select Device Settings > Input 1 r Input 2 > Calc. Press ENTER t activate the Calc submenu, use the [+] r [-] key t select the calculated parameter. Press ENTER t cnfirm and press MENU t exit. 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 26 f 34 Dcument Type 7.4.4 Select which prbe and/r parameters are shwn n the display Press the MENU key and select Device Settings > Display Settings > Mde. Press ENTER t activate the Mde menu item, use the [+] r [-] key t select the display mde. Press ENTER t cnfirm and press MENU t exit. Depending n the display mde, use the [+] r [-] key t change the prbe and/r parameter being displayed. NOTE: The calculated parameter (HygrClip 2 prbe nly) is shwn nly if enabled fr the prbe input that is selected (MENU > Input 1 r Input 2 > Calc). 7.4.5 Set input 1 r 2 fr a digital r analg prbe Press the MENU key and select Device Settings > Input 1 r Input 2 > Pbe Type. Press ENTER t activate the Pbe Type menu item, use the [+] r [-] key t change the prbe type. Press ENTER t cnfirm and press MENU t exit. When using an analg prbe, be sure t define bth the vltage signal range and the measuring range f the prbe. HW4 is required t define the unit f measurement f an analg prbe. The HW4 sftware can als be used t change the prbe type fr each input. 7.5 Data lgging functin The HF8 can lg up t 10,000 pairs f relative humidity and temperature values prvided by a single HygrClip 2 prbe r up t 10,000 data values prvided by a single 1-channel analg prbe. Bth prbe inputs can be lgged at the same time and in that case the recrding capacity per prbe is cut in half. Each recrd is autmatically date and time stamped. The calculated parameter cannt be recrded. 7.5.1 Lgging data The data lgging settings apply t bth prbe inputs Data lgging starts and ends simultaneusly fr bth prbe inputs The lg data functin settings cannt be changed as lng as data lgging is active Cnfigure the data lgging functin and start recrding data: Press the MENU key and select Data Lgging. Press ENTER t activate the Data Lgging menu. Use the + r - key t select Settings. Press ENTER t cnfirm and pen the Settings sub-menu. Use the + r - key t select a menu item and press ENTER t cnfirm: Select Interval (lg interval). Press ENTER t activate the Interval menu item and use the + r - key t change the lg interval. Press ENTER after each change t cnfirm and mve the cursr t the right. When dne, press ENTER t cnfirm and exit. Use the + r - key t select the Mde menu item. Press ENTER t activate the Mde menu item and use the + r - key t change the lgging mde: - Start-Stp. the recrding will stp when the memry is full - Lp: when the memry is full the ldest recrd will be dumped t make rm fr the next recrd When dne, press ENTER t cnfirm and exit. Use the + r - key t select each prbe t be lgged. Press ENTER t activate the Prbe 1 r Prbe 2 menu item and use the + r - key t enable data lgging. Press ENTER t cnfirm and exit. Press the MENU key and use the - t select Start Recrding Press the ENTER key twice t start recrding data The HF8 autmatically exits the data lgging functin and a diskette symbl appears at the bttm left f the display fr each prbe being recrded 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 27 f 34 Dcument Type Stp recrding data: Press the MENU key and select Data Lgging. Press ENTER t activate the Data Lgging menu item. Use the + r - key t select Stp Recrding. Press ENTER twice t cnfirm. The HF8 autmatically exits the data lgging functin. 7.5.2 Viewing the recrded data Data recrded with the HF8 data lgging functin can be viewed nly after cnnecting the HF8 t a PC with the HW4 sftware running. Fr instructins see the fllwing HW4 manual: E-M-HW4v3-F2-015. 7.6 Relay cntacts The relay cntacts can be cnfigured after using a service cable t cnnect the HF8 t a PC running the ROTRONIC HW4 sftware. Instructins are prvided in the fllwing HW4 manual: E-M-HW4v3-F2-015 7.7 Audible alarm (beeper) The audible alarm can be disabled, enabled and cnfigured after using a service cable t cnnect HF8 t a PC running the ROTRONIC HW4 sftware. Instructins are prvided in the fllwing HW4 manual: E-M-HW4v3-F2-015 8 Maintenance The HF8 transmitter des nt require any particular maintenance frm an electrical safety standpint. 8.1 Service cable Cable AC3006 is used t cnnect the HF8 t a USB prt f a PC running the ROTRONIC HW4 sftware. Prir t cnnecting the HF5 t a USB prt yu must install the ROTRONIC USB driver n the PC (available frm the HW4 CD r frm www.rtrnic-humidity.cm). Fr instructins see the HW4 manual E-M-HW4v3-Main. 8.2 Lcatin f the service cnnectr (mini USB type) WARNING: the service cnnectr is a UART interface with a mini-usb cnnectr type. D nt cnnect the service cnnectr directly t the USB prt f a PC r hub. The service cnnectr (see arrw fr lcatin) can be accessed withut pening the enclsure after remving the small red sealing cver. 2010; Rtrnic AG E-M-HF8-V1_11
Dcument cde HygrFlex HF8 Humidity Temperature Dcument title Rtrnic AG Bassersdrf, Switzerland Instructin Manual Page 28 f 34 Dcument Type 8.3 Peridic calibratin check f the HygrClip 2 prbe Bth the Pt 100 RTD temperature sensr used in the HygrClip 2 prbe and assciated electrnics are very stable and shuld nt require any calibratin after the initial factry adjustment. Lng term stability f the ROTRONIC Hygrmer humidity sensr is typically better than 1 %RH per year. Fr maximum accuracy, calibratin f the prbe shuld be verified every 6 t 12 mnths. Applicatins where the prbe is expsed t significant pllutin may require mre frequent verificatins. 8.4 HF8 prbe calibratin and adjustment prcedures The HF8 uses tw separate steps: 1) Acquisitin and capture f calibratin pints t the memry f the HygrClip 2 prbe 2) Adjustment f the prbe based n the calibratin pints present in the prbe memry When the purpse is just t calibrate a HygrClip 2 prbe, use nly step 1. Up t 2 temperature calibratin pints and up t100 humidity calibratin pints can be held indefinitely in the prbe memry. N calibratin pint is saved within the HF8 itself. A calibratin prtcl can be printed with the HW4 sftware. Either the HW4 sftware r the HF8 can be used at any time t delete unwanted calibratin pints frm the prbe r device memry. Adjustment (step 2) can be carried ut at any time after calibratin, even several days later. Adjustment is purely an electrnic prcess based n the data memrized by the prbe. Nte: Instructins fr using the ROTRONIC calibratin devices and humidity standards are prvided in dcument E-M-CalBasics 8.4.1 Calibratin against a reference prbe The HF8 can be used t d a 1-pint r multi-pint calibratin f a prbe cnnected t ne f the HF8 prbe inputs against a reference HygrClip 2 prbe cnnected t the ther prbe input f the HF8. Expse bth the reference prbe and the prbe t be calibrated t the same envirnment and wait fr full equilibrium with the envirnment. In a still air envirnment, it is highly recmmended t prvide sme ventilatin that is cmmn t bth the reference prbe and device t be adjusted. Press the MENU key and select either Prbe 1 r Prbe 2. The reference prbe is assumed t be cnnected t the nn-selected input. Press ENTER t activate the Prbe 1 r Prbe 2 menu item. Use the [-] key t select either Humi Adjust r Temp Adjust (this can be dne in any rder). Press ENTER t cnfirm and pen the next sub-menu. Use the [-] key t select the Acquire (Ref = Prbe) menu item and press ENTER t cnfirm. Humi Adjust: the HF8 displays bth the current humidity read by the device t be calibrated and the value prvided by the reference prbe. Press ENTER t accept the calibratin pint. Press ENTER t cnfirm and save the calibratin pint t the device memry. The HF8 autmatically exits the menu. Temp Adjust: the HF8 displays bth the current temperature read by the device t be calibrated and the value prvided by the reference prbe. Press ENTER t accept the calibratin pint. Press ENTER t cnfirm and save the calibratin pint t the device memry. The HF8 autmatically exits the menu. Nte: the prcedure can be repeated under different cnditins s as t accumulate several calibratin pints (temperature: maximum 2 pints, humidity: maximum 100 pints). 2010; Rtrnic AG E-M-HF8-V1_11