Stratos Pro A4... PH Instruction Manual

Stratos Pro A4... PH Instruction Manual Latest Product Information: www.knick.de

Warranty Warranty Defects occurring within 3 years from delivery date shall be remedied free of charge at our plant (carriage and insurance paid by sender). Sensors, fittings, and accessories: 1 year. Subject to change without notice. Return of Products Under Warranty Please contact our Service Team before returning a defective device. Ship the cleaned device to the address you have been given. If the device has been in contact with process fluids, it must be decontaminated/disinfected before shipment. In that case, please attach a corresponding certificate, for the health and safety of our service personnel. Disposal Please observe the applicable local or national regulations concerning the disposal of waste electrical and electronic equipment. 2

Documents Supplied CD-ROM Complete documentation: Instruction manuals Safety instructions Short instructions Stratos Pro Series Safety Instructions Safety Information In official EU languages and others. ATEX / IECEX / FM / CSA EC Declarations of Conformity www.knick.de Stratos Pro A411/A211 ph QuickStart Short Instructions...3 Kurzübersicht... 15 Quick Start... 27 Быстрый старт... 39 Inicio rápido... 51 Início rápido... 63 快速启动... 75 Other languages: www.knick.de Short Instructions In German, English, French, Russian, Spanish, Portuguese, Swedish, and Dutch. More languages on CD-ROM and on our website: www.knick.de Installation and commissioning Operation Menu structure Calibration Error messages and recommended actions Specific Test Report 3

Contents Documents Supplied... 3 Introduction... 7 Intended Use...7 Safety Information... 8 Safety Precautions for Installation...9 Registered Trademarks...9 Overview of Stratos Pro A4... PH...10 Assembly...11 Package Contents...11 Mounting Plan, Dimensions...12 Pipe Mounting, Protective Hood...13 Panel Mounting...14 Installation...15 Installation Instructions...15 Rating Plates / Terminal Assignments...16 Power Supply, Signal Lines...17 Sensor Connection...18 Wiring Examples...19 Protective Wiring of Relay Contacts...30 User Interface, Keypad...32 Display...33 Signal Colors (Display Backlighting)...33 Measuring Mode...34 Selecting the Mode / Entering Values...35 Operating Modes...36 Menu Structure of Modes and Functions...37 HOLD Mode...38 Alarm...39 Configuration...40 Menu Structure of Configuration...40 4

Contents Parameter Set Selection...42 Parameter Set A/B...42 Configuration...43 Configuration (Original for Copy)...47 Sensor...50 Current Output 1...58 Current Output 2...64 Temperature Compensation...66 Alarm...68 Limit Function...70 Pulse Length / Pulse Frequency Controller...79 Controller...80 WASH Contact...84 Time and Date...86 Tag Number...86 Digital Sensors...88 Operation...88 Connecting a Digital Sensor...89 Sensor Replacement...90 Calibration...92 Selecting a Calibration Mode...93 Zero Adjustment (ISFET)...94 Automatic Calibration (Calimatic)...96 Manual Calibration with Buffer Entry...98 Data Entry of Premeasured Sensors... 100 Product Calibration (ph)... 102 ORP ( Redox) Calibration... 104 Temp Probe Adjustment... 106 Measurement...107 Diagnostics...109 Service...114 Operating States...118 5

Contents Product Line and Accessories...120 Specifications...121 Buffer Tables...128 -U1- Specifiable Buffer Set... 137 Error Handling...140 Error Messages...141 Sensoface...144 FDA 21 CFR Part 11...147 Electronic Signature Passcodes... 147 Audit Trail... 147 Glossary...148 Index...152 Passcodes...160 6

Introduction Intended Use The Stratos Pro A4... PH is used for ph/mv, ORP, and temperature measurement in industry, environment, food processing, and sewage treatment. The sturdy molded enclosure can be fixed into a control panel or mounted on a wall or at a post. The protective hood, which is available as accessory, provides additional protection against direct weather exposure and mechanical damage. The device has been designed for application with commercially available sensors with a nominal zero point at ph 7, ISFET sensors, or digital sensors. Plain-text messages in a large, backlit display allow intuitive operation. The colored display backlighting signals alarm messages (red) or HOLD mode (orange). The Sensocheck automatic monitoring of glass and reference electrode and the Sensoface function for clear indication of the sensor condition provide excellent diagnostics. The internal logbook (TAN SW-A002) can handle up to 100 entries up to 200 with AuditTrail (TAN SW-A003). The device provides two parameter sets which can be switched manually or via a control input for different process adaptations or different process conditions (e.g. beer and CIP). Password protection for granting access rights during operation can be configured. Two floating, digital control inputs ( Hold and Control ) are available for external control. The internal PID process controller can be configured as pulse length or pulse frequency controller. The device provides two current outputs (for transmission of measured value and temperature, for example) and four floating relay contacts. A time-controlled cleaning function can be configured. Current is provided through a universal power supply 24... 230 V AC/ DC, AC: 45... 65 Hz. Approvals for Measurement in Hazardous Locations: Stratos Pro A4...B PH: acc. to FM and CSA in Class I Div 2 / Zone 2 7

Safety Information Safety information Be sure to read and observe the following instructions! The device has been manufactured using state of the art technology and it complies with applicable safety regulations. When operating the device, certain conditions may nevertheless lead to danger for the operator or damage to the device. See also separate document: Safety Instructions. (EC Declaration of Conformity, FM, CSA Certificates) CAUTION! Commissioning must only be performed by trained personnel authorized by the operating company! Whenever it is likely that protection has been impaired, the device shall be made inoperative and secured against unintended operation. The protection is likely to be impaired if, for example: the device shows visible damage the device fails to perform the intended measurements after prolonged storage at temperatures above 70 C after severe transport stresses Before recommissioning the device, a professional routine test must be performed. This test must be carried out at the manufacturer's factory. Please note: Before commissioning it must be proved that the device may be connected with other equipment. 8

Safety Information Safety Precautions for Installation The electrical installation shall conform to the national regulations for electrical installations and/or other applicable national or local codes or regulations. The power supply shall be disconnectable from the device by a two-poled circuit breaker. Switch and circuit breaker shall be located in close proximity to the equipment and be easily accessible by the OPERATOR. They shall be marked as disconnect switch for the device. Be sure to disconnect the mains supply and any relay contacts which are connected to separate current sources before starting maintenance operations. Approvals for Application in Hazardous Locations Stratos Pro A4...B PH: acc. to FM and CSA in Class I Div 2 / Zone 2 Terminals: Screw terminal, suitable for single wires / flexible leads up to 2.5 mm 2 (AWG 14). Recommended torque for the terminal screws: 0,5... 0,6 Nm. Further Information on Installation in Hazardous Locations: See also separate Safety Instructions document. Registered Trademarks The following names are registered trademarks. For practical reasons they are shown without trademark symbol in this manual. Stratos Sensocheck Sensoface Calimatic GainCheck InPro is a registered trademark of Mettler-Toledo. HART is a registered trademark of the HART Communication Foundation. 9

Overview Overview of Stratos Pro A4... PH Measure el. Reference el. A ph / mv / Output 1 temp input B 9 10 + Output 1/HART Output 1 / HART SG C Output 2 7 + Output 2 ISFET +3 V ISFET 3 V D E +3 V / 3 V for ISFET adapter R1 8 14 Output 2 REL 1 ISM GND F 15 REL 1/2 ISM data G R2 16 REL 2 RTD H RTD I Alarm 17 Alarm Shield K R3 18 Alarm Wash 19 Wash Power supply 1 RS 485 R4 20 Wash RS 485 A 2 RS 485 B 3 GND/Shield 4 Input + 5 Input 6 HOLD HOLD / CONTROL CONTROL 11 12 13 HOLD Input Control Input Power 21 22 Power Power 10

Assembly Package Contents Check the shipment for transport damage and completeness! The package should contain: Front unit, rear unit, bag containing small parts Specific test report Documentation (cf Pg 3) CD-ROM 11 10 9 1 2 3 8 7 6 5 4 Fig.: Assembling the enclosure 1) Jumper (3 x) 2) Washer (1 x), for conduit mounting: Place washer between enclosure and nut 3) Cable tie (3 x) 4) Hinge pin (1 x), insertable from either side 5) Enclosure screw (4 x) 6) Sealing insert (1 x) 7) Rubber reducer (1 x) 8) Cable gland (3 x) 9) Filler plug (3 x) 10) Hexagon nut (5 x) 11) Sealing plug (2 x), for sealing in case of wall mounting 11

Assembly Mounting Plan, Dimensions 148 117 41 14 148 42 42 42 1 21 43 2 74 6,2 34 80 3 4 1) Cable gland (3 x) 2) Knockouts for cable gland or ½" conduit, 21.5 mm dia. (2 knockouts) Conduits not included! 3) Knockout for pipe mounting (4 x) 4) Knockout for wall mounting (2 x) Fig.: Mounting plan (All dimensions in mm!) 12

Pipe Mounting, Protective Hood Assembly ø40...ø60 1 2 3 1) Hose clamp with worm gear drive to DIN 3017 (2 x) 2) Pipe-mount plate (1 x) 3) For vertical or horizontal posts or pipes 4) Self-tapping screw (4 x) 4 Fig.: ZU 0274 pipe-mount kit (All dimensions in mm!) 199 147 91 185 Fig.: ZU 0737 protective hood for wall and pipe mounting (All dimensions in mm!) 13

Assembly Panel Mounting <30 76 31 1) Circumferential sealing (1 x) 2) Screw (4 x) 3) Position of control panel 4) Span piece (4 x) 5) Threaded sleeve (4 x) Cutout 138 x 138 mm (DIN 43700) 5 4 1...22 3 1 2 Fig.: ZU 0738 panel-mount kit (All dimensions in mm!) 14

Installation Installation Instructions Installation of the device must be carried out by trained experts in accordance with this instruction manual and as per applicable local and national codes. Be sure to observe the technical specifications and input ratings during installation! Be sure not to notch the conductor when stripping the insulation! Before connecting the device to the power supply, make sure that its voltage lies within the range 24 to 230 V AC/DC! The supplied current must be galvanically isolated. If not, connect an isolator module. All parameters must be set by a system administrator prior to commissioning! Terminals: suitable for single wires / flexible leads up to 2.5 mm 2 (AWG 14) Additional safety precautions have to be taken for operation in hazardous locations FM, CSA Cl. I Div 2 / Zone 2! (See separate Safety Instructions document.) 15

Installation Rating Plates / Terminal Assignments Fig.: Terminal assignments of Stratos Pro A4... Fig.: MK-PH module terminal assignments Fig.: Module terminal label Fig.: Stratos Pro A411N-PH rating plate at bottom of front 16

Power Supply, Signal Lines Connect the power supply for Stratos Pro A401/A411 PH to terminals 21 and 22. (24... 230 V AC, 45... 65 Hz / 24... 80 V DC) Areas for placing the screwdriver to pull out the terminals 1 22 Assignments 1Power supply 2 RS 485 A 3 RS 485 B 4 GND/shield 5 + input 6 input 7 + out 2 8 out 2 9 + out 1/HART 10 out 1/HART 11 hold 12 hold/control 13 control 14 REL 1 15 REL 1/2 16 REL 2 17 alarm 18 alarm 19 wash 20 wash 21 power 22 power Fig.: Terminals, device opened, back of front unit 17

Sensor Connection Connect the sensor lines with the sensor connection (module terminals A...K). Areas for placing the screwdriver to pull out the terminals 1 22 Sensor connection MK-PH module A measure el. B reference el. C SG D + 3 V E 3 V F ISM GND G ISM (Data) H RTD (GND) I RTD K Shield Fig.: Terminals, device opened, back of front unit 18

Wiring Examples Example 1: Measuring task: Sensors ( example): Cable (example): ph, temperature, glass impedance HA 405-DXK-58 (Mettler-Toledo) AS9 ZU 0318 (Knick) Core Shield Jumper! Sensor(s) Cable Device 19

Wiring Examples Example 2: Measuring task: ph/orp, temp, glass impedance, ref. impedance Sensors (example): ph: HA 405-DXK-58 (Mettler-Toledo), Pt: ZU 0073 (Knick) Cable (example): 2x AS9 ZU 0318 (Knick) meas. el Core ref. el. A B C D E F G H I K Shield SG Core +3 V Shield 3 V ISM (GND) ISM (Data) RTD (GND) RTD shield Sensor(s) Cable Device 20

Wiring Examples Example 3: Measuring task: Sensors (example): Cable (example): ph, temp, glass impedance SE 533 (Knick) VP6 ZU 0313 (Knick) meas. el Clear Core ref. el. SG +3 V 3 V A B C D E F G H I K Red Shield Jumper! ISM (GND) ISM (Data) RTD (GND) Green RTD White shield Shield Yellow/Green Sensor(s) Cable Device 21

Wiring Examples Example 4: Measuring task: Sensors (example): Cable (example): ph/orp, temp, glass impedance, ref. impedance ph: SE 533 (Knick) Pt: ZU 0073 (Knick) VP6 ZU 0313 (Knick) or AS9 ZU 0318 (Knick) meas. el Clear Core ref. el. SG +3 V 3 V A B C D E F G H I K Red Shield Core Shield ISM (GND) ISM (Data) RTD (GND) Green RTD White shield Shield Yellow/Green Sensor(s) Cable Device 22

Wiring Examples Example 5: Measuring task: Sensors (example): Cable (example): ph/orp, temp, glass impedance, ref. impedance InPro 4260 (Mettler-Toledo) VP6 ZU 0313 (Knick) meas. el Clear Core ref. el. SG +3 V 3 V A B C D E F G H I K Red Shield Blue ISM (GND) ISM (Data) RTD (GND) Green RTD White shield Shield Yellow/Green Sensor(s) Cable Device 23

Wiring Examples Example 6: Measuring task: Sensors (example): Cable (example): ph, temp (safe areas only) InPro 4260 ISFET (Mettler-Toledo) ZU 0582 (Knick) meas. el ref. el. SG +3 V 3 V A B C D E F G H I K ISM (GND) ISM (Data) RTD (GND) RTD shield Device Pink Yellow Jumper! Sensor(s) Cable with amplifier Brown Green Gray White Yellow/Green 24

Wiring Examples Example 7: Caution! Do not connect an additional analog sensor! Measuring task: ph/orp, temp, glass impedance, ref. impedance Sensors (example): ISM digital InPro 4260i (Mettler-Toledo) Cable (example): AK9 (Mettler-Toledo) Shield Core Sensor(s) Cable Device 25

Wiring Examples Example 8 - Note: Switch off Sensocheck! Measuring task: ORP, temp, glass impedance, ref. impedance Sensors (example): ORP: SE 535 (Knick) Cable (example): AS9 ZU 0318 (Knick) Jumper! Shield Core Shield Sensor(s) Cable Device 26

Wiring Examples Example 9: Measuring task: Sensors (example): Cable (example): ph/orp, temp, glass impedance, ref. impedance SE 533/1-ADIN (Knick) CA/003-NAADIN11 (Knick) Indu Con 3,3 V RS 485 (A) RS 485 (B) GND/shield 1 2 3 4 Brown Green Yellow White/Clear Shield (blue) Sensor(s) Cable Device 27

Wiring Examples Example 10: Memosens Measuring task: ph/orp, temp, glass impedance, ref. impedance Sensors (example): Orbisint CPS 11 D Memosens Cable (example): CYK 10 3,3 V RS 485 (A) RS 485 (B) GND/shield 1 2 3 4 Brown Green Yellow White Shield (clear) Sensor(s) Cable Device 29

Protective Wiring of Relay Contacts Protective Wiring of Relay Contacts Relay contacts are subject to electrical erosion. Especially with inductive and capacitive loads, the service life of the contacts will be reduced. For suppression of sparks and arcing, components such as RC combinations, nonlinear resistors, series resistors, and diodes should be used. 1 2 3 1 3 2 Typical AC applications with inductive load 1 Load 2 RC combination, e.g. RIFA PMR 209 Typical RC combinations for 230 V AC: capacitor 0.1 µf / 630 V, resistor 100 Ω / 1 W 3 Contact 30

Protective Wiring of Relay Contacts Typical Protective Wiring Measures A: DC application with inductive load B: AC/DC applications with capacitive load C: Connection of incandescent lamps A1 A2 A3 B1 B2 B3 C1 C3 Inductive load Free-wheeling diode, e.g. 1N4007 (Observe polarity) Contact Capacitive load Resistor, e.g. 8 Ω / 1 W at 24 V / 0.3 A Contact Incandescent lamp, max 60 W / 230 V, 30 W / 115 V Contact WARNING! Make sure that the maximum ratings of the relay contacts are not exceeded even during switching! 31

User Interface, Keypad 1 2 3 1 IrDA transmitter/receiver 2 Display 3 Keypad 4 Rating plate (bottom) 4 Key meas info enter Arrow keys up / down Arrow keys left / right Function Return to last menu level Directly to measuring mode (press > 2 s) Retrieve information Show error messages Configuration: Confirm entries, next configuration step Calibration: Continue program flow Measuring mode: Display output current Measuring mode: Call menu Menu: Increase/decrease a numeral Menu: Selection Measuring mode: Call menu Menu: Previous/next menu group Number entry: Move between digits 32

1 2 3 4 5 6 7 8 9 10 11 Display 23 12 13 14 24 15 16 22 21 1 Temperature 2 Sensocheck 3 Interval/response time 4 Sensor data 5 Digital sensor devaluated 6 Limit values 7 Alarm 8 Service 9 Parameter sets A/B 10 Calibration 11 Digital sensor 12 Waiting time running 20 19 18 17 13 Info available 14 HOLD mode active 15 Main display 16 Secondary display 17 Proceed with enter 18 Digital sensor 19 Diagnostics 20 Configuration mode 21 Calibration mode 22 Measuring mode 23 Sensoface 24 Measurement symbol Signal Colors ( Display Backlighting) Red Orange Turquoise Green Purple Alarm HOLD mode (Calibration, Configuration, Service) Diagnostics Info Sensoface message 33

Measuring Mode After the operating voltage has been connected, the device automatically goes to Measuring mode. To call the measuring mode from another operating mode (e.g. Diagnostics, Service): Hold meas key depressed (> 2 s). Sensoface indicator (sensor status) Active parameter set Time Mode indicator (measuring) Hold meas key depressed to call the measuring mode (pressing once more switches the display) Process variable Temperature enter key In measuring mode the display indicates: Measured value and time (24/12 h AM/PM) as well as temperature in C or F (formats selected during configuration) By pressing the meas key in measuring mode you can view the following displays (for approx. 60 sec): Measured value and selection of parameter set A/B (if set to Manual ) Measured value and tag (point of measurement designation entered during configuration) Time and date Controller (if configured), upper display: controller output Y, lower display: setpoint Pressing the enter key shows the output currents. They are displayed as long as enter is held depressed, then the measured-value display will return after 3 sec. The device must be configured for the respective measurement task! 34

Selecting the Mode / Entering Values To select the operating mode: 1) Hold meas key depressed (> 2 s) (measuring mode) 2) Press any arrow key: the selection menu appears 3) Select operating mode using left / right arrow key 4) Press enter to confirm the selected mode Selection menu Selected mode (blinks) 1 2 3 4 To enter a value: 5) Select numeral: left / right arrow key 6) Change numeral: up / down arrow key 7) Confirm entry with enter 5 6 7 35

Operating Modes Diagnostics Display of calibration data, display of sensor data, performing a device self-test, viewing the logbook entries, display of hardware/software versions of the individual components. The logbook can store 100 events (00...99). They can be displayed directly on the device. The logbook can be extended to 200 entries using a TAN (Option). HOLD Manual activation of HOLD mode, e.g. for replacing a digital sensor. The signal outputs adopt a defined state. Calibration Every sensor has typical characteristic values, which change in the course of the operating time. Calibration is required to supply a correct measured value. The device checks which value the sensor delivers when measuring in a known solution. When there is a deviation, the device can be adjusted. In that case, the device displays the actual value and internally corrects the measurement error of the sensor. Calibration must be repeated at regular intervals. The time between the calibration cycles depends on the load on the sensor. During calibration the device is in HOLD mode. During calibration the analyzer remains in the HOLD mode until it is stopped by the operator. Configuration The analyzer must be configured for the respective measurement task. In the Configuration mode you select the connected sensor, the measuring range to be transmitted, and the conditions for warning and alarm messages. During configuration the device is in HOLD mode. Configuration mode is automatically exited 20 minutes after the last keystroke. The device returns to measuring mode. Service Maintenance functions (current source, relay test, controller test), IrDA operation, passcode assignment, reset to factory settings, enabling of options (TAN). 36

Menu Structure of Modes and Functions Measuring mode meas meas TAG display after 60 s meas Controller CLK display parameter display (if configured) after 60 s meas (Access via code, factory setting: 5555) Pressing any arrow key opens the selection menu. Select the menu group using the left/right arrow keys. Press enter to open a menu. Press meas to return. Display of calibration data Display of sensor data Self test: RAM, ROM, EEPROM, module 100 events with date and time Display of measured values (mv_ph, mv_orp, RTD, resistances of glass electrode, reference electrode) Display of software version, model designation, serial number Manual activation of HOLD mode, e.g. for sensor replacement. The signal outputs behave as configured (e.g. last measured value, 21 ma) ph adjustment (as configured) ORP adjustment Product calibration Zero adjustment (for ISFET only) Adjustment of temperature probe Configuring parameter set A Configuring parameter set B Display of measured values for validation (simulators) Current source, output 1 Current source, output 2 Relay test Controller: manual specification of controller output Activating the IrDA interface Specifying access codes for operating modes Reset to factory setting Enabling an option via TAN 37

HOLD Mode The HOLD mode is a safety state during configuration and calibration. Output current is frozen (Last) or set to a fixed value (Fix). Alarm and limit contacts are disabled. The HOLD mode is indicated by orange display backlighting. HOLD mode, display icon: Output Signal Response Last: The output current is frozen at its last value. Recommended for short configuration procedures. The process should not change decisively during configuration. Changes are not noticed with this setting! Fix: The output current is set to a value that is noticeably different from the process value to signal the control system that the device is being worked at. Output Signal During HOLD: Output current [ma] 21 Output signal HOLD Setting FIX = 21.0 ma Output signal HOLD Setting LAST 4 HOLD active HOLD active Terminating the HOLD Mode The HOLD mode is ended by switching to measuring mode (hold meas key depressed). The display reads Good Bye, after that, the HOLD mode is exited. When the calibration mode is exited, a confirmation prompt ensures that the installation is ready for operation (e.g.: sensor reinstalled, located in process). 38

Alarm External Activation of HOLD The HOLD mode can be activated from outside by sending a signal to the Hold input (e.g. from the process control system). HOLD Power supply 12...24 V AC/DC 10 Input Stratos Pro A4... HOLD inactive HOLD active 11 0...2 V AC/DC 10...30 V AC/DC Process control system Manual Activation of HOLD The HOLD can be activated manually from the HOLD menu. This allows checking or replacing a sensor, for example, without provoking unintended reactions of outputs or contacts. Press meas key to return to selection menu. Alarm When an error has occurred, Err xx is displayed immediately. Only after expiry of a user-defined delay time will the alarm be registered and entered in the logbook. During an alarm the display blinks, the display backlighting turns red. Error messages can also be signaled by a 22 ma output current (see Configuration). The alarm contact is activated by alarm and power failure, see also Configuration / Alarm Settings. 2 sec after the failure event is corrected, the alarm status will be deleted. 39

Configuration Menu Structure of Configuration The device provides 2 parameter sets A and B. By switching between the parameter sets you can adapt the device to different measurement situations, for example. Parameter set B only permits setting of process-related parameters. The configuration steps are assigned to different menu groups. Using and you can jump between the individual menu groups. Each menu group contains menu items for setting the parameters. Pressing enter opens a menu item. The values are edited using and. Pressing enter confirms/stores the settings. Return to measurement: Press meas. Select menu group Menu group Code Display Select menu item Sensor selection SNS: Menu item 1... enter enter Current output 1 Current output 2 Compensation Alarm mode Menu item... OT1: OT2: COR: ALA: enter enter Relay outputs REL: Cleaning WSH: Setting the clock CLK: Tag number TAG: 40

Parameter Set A/B: Configurable Menu Groups Configuration (Some parameters are identical in A and B. They are configured in parameter set A only.) Menu group Parameter set A Parameter set B SENSOR Sensor selection --- OUT1 Current output 1 Current output 1 OUT2 Current output 2 Current output 2 CORRECTION Compensation Compensation ALARM Alarm mode Alarm mode REL 1/REL 2 Relay outputs Relay outputs WASH Cleaning --- PARSET Parameter set --- selection CLOCK Setting the clock --- TAG Tag number --- 41

Parameter Set Selection Parameter Set A/B Manual Selection. Signaling via WASH Contact. Display Action Remark To switch between Manual selection of parameter sets: parameter sets must have been preset in CONFIG Press meas mode. Default setting is a fixed parameter set A. Wrong settings change the measurement properties! PARSET blinks in the lower line. Select parameter set using and keys Select PARSET A / PARSET B Confirm with enter Cancel with meas Wash 19 Wash The active parameter set can be displayed using the WASH contact: R4 42 20 Wash If configured correspondingly, the WASH contact signals: Parameter set A (open contact) Parameter set B (closed contact)

Configuration Configuration Choices Default Sensor (SENSOR) SNS: STANDARD, ISFET INDUCON, ISM MEMOSENS STANDARD RTD TYPE 100 PT, 1000 PT, 30 NTC 100 PT TEMP UNIT C / F C TEMP MEAS AUTO MAN EXT (only if enabled via TAN) AUTO TEMP CAL MAN 20...200 C ( 4...392 F) AUTO MAN EXT (only if enabled via TAN) MAN 20...200 C ( 4...392 F) 025.0 C (077.0 F) AUTO 025.0 C (077.0 F) CAL MODE AUTO, MAN, DAT AUTO AUTO BUFFER SET -00-...-09-, -U1- Please note: Pressing info displays nominal buffer values and manufacturers -00- U1 EDIT BUFFER 1 (NO, YES) NO (For specifiable Enter values for buffer 1 buffer set, see Appendix: EDIT BUFFER 2 (NO, YES) NO Buffer Tables ) Enter values for buffer 2 CAL TIMER OFF, FIX, ADAPT OFF ON CAL-CYCLE 0...9999 h 0168 h DS CIP COUNT ON/OFF OFF (InduCon) ON CIP CYCLES 0...9999 CYC 0025 CYC SIP COUNT ON/OFF OFF ON SIP CYCLES 0...9999 CYC 0025 CYC 43

Configuration Configuration Choices Default Output 1 (OUT1) OT1: RANGE 0 20 ma, 4 20 ma 4-20 ma CHANNEL PH/ORP/TMP PH PH BEGIN 4mA (0 ma) 2.00...16 PH 00.00 PH END 20 ma 2.00...16 PH 14.00 PH ORP BEGIN 4mA (0 ma) 1999...1999 mv END 20 ma 1999...1999 mv TMP BEGIN 4mA (0 ma) 20...300 C Select C/ F C END 20 ma 20...300 C for Sensor TMP BEGIN 4mA (0 ma) 4...572 F F END 20 ma 4...572 F FILTERTIME 0...120 SEC 0000 SEC 22mA-FAIL ON/OFF OFF HOLD MODE LAST/FIX LAST FIX HOLD-FIX (0) 4...22 ma 021.0 ma Output 2 (OUT2) OT2: RANGE 0 20 ma, 4 20 ma 4-20 ma CHANNEL PH/ORP/TMP TMP PH BEGIN 4mA (0 ma) 2.00...16 PH 00.00 PH END 20 ma 2.00...16 PH 14.00 PH ORP BEGIN 4mA (0 ma) 1999...1999 mv END 20 ma 1999...1999 mv TMP BEGIN 4mA (0 ma) 20...300 C Select C/ F C END 20 ma 20...300 C for Sensor TMP BEGIN 4mA (0 ma) 4...572 F F END 20 ma 4...572 F FILTERTIME 0...120 SEC 0000 SEC 22mA-FAIL ON/OFF OFF HOLD MODE LAST/FIX LAST FIX HOLD-FIX (0) 4...22 ma 021.0 ma 44

Configuration Configuration Choices Default Temperature compensation (CORRECTION) COR: TC LIQUID 19.99...19.99%/K 00.00%/K TEMP EXT * ON/OFF OFF ON I-INPUT 0...20 ma/4...20 ma 4...20 ma C BEGIN 4 ma 20...200 C 000.0 C END 20 ma 20...200 C 100.0 C F BEGIN 4 ma 4...392 F 032.0 F END 20 ma 4...392 F 212.0 F Alarm (ALARM) ALA: DELAYTIME 0...600 SEC 0010 SEC SENSOCHECK ON/OFF OFF Relay 1/2 (RL1/RL2) REL: (Selected in text line) LIMITS, CONTROLLER LIMITS RL1: CHANNEL PH/ORP/TMP PH FUNCTION Lo LEVL, Hi LEVL Lo LEVL CONTACT N/O, N/C N/O LEVEL 2.00...16 PH (-1999...1999 mv) (-20...200 C) 00.00 PH HYSTERESIS 0...10.00 PH 00.50 PH DELAYTIME 0...9999 SEC 0010 SEC RL2 CHANNEL PH/ORP/TMP PH FUNCTION Lo LEVL, Hi LEVL Hi LEVL CONTACT N/O, N/C N/O LEVEL 2.00...16 PH (-1999...1999 mv) (-20...200 C) 14.00 PH HYSTERESIS 0...10.00 PH 00.50 PH DELAYTIME 0...9999 SEC 0010 SEC *) is only displayed if enabled and SENSOR TEMP EXT has been selected. 45

Configuration Configuration Choices Default REL: CTR CHANNEL PH/ORP/TMP PH TYPE PLC / PFC PLC PLC PULSE LEN 0...0600 SEC 0010 SEC PFC PULSE FREQ 0...0180 P/M 0060 P/M SETPOINT 2.00...16 PH 07.00 PH 1500...1500 mv DEAD BAND 0...10.00 PH 01.00 PH P-GAIN 10...9999% 0100% I-TIME 0...9999 SEC 0000 SEC D-TIME 0...9999 SEC 0000 SEC HOLD MODE Y LAST/Y OFF Y LAST Cleaning contact (WASH) WSH: (Select text line) WASH PARSET A/B WASH WASH WASH CYCLE 0.0...999.9 h 000.0 h WASH TIME 0...9999 SEC 0060 SEC CONTACT N/O, N/C N/O Parameter set (PARSET) PAR: Select fixed parameter set (A) or switch between A/B via control input or manually in measuring mode PARSET FIX / CNTR INPUT / MANUAL PARSET FIX (fixed parameter set A) Real-time clock (CLOCK) CLK: FORMAT 24 h / 12 h 24 h TIME hh/mm 00..23:00...59 00:00 12 h TIME hh/mm 00...11 AM/ PM:00...59 00.00 DAY/MONTH 01...31/01...12 31.12. YEAR 2000...2099 2006 Tag number (TAG) TAG: (Input in text line) 46

Configuration (Original for Copy) Two complete parameter sets are stored in the EEPROM. As delivered, the two sets are identical but can be edited. Please note: Fill in your configuration data on the following pages or use them as original for copy. Parameter Parameter set A Parameter set B SNS: Sensor type --- *) SNS: RTD type --- SNS: Temperature unit --- SNS: Temp measurement --- SNS: Manual meas. temp --- SNS: Calibration temp --- SNS: Manual cal temp --- SNS: Calibration mode --- SNS: Select buffer set --- (-U1-, see Appendix) SNS: Calibration timer --- SNS: Calibration cycle --- SNS: CIP counter --- SNS: CIP cycles --- SNS: SIP counter --- SNS: SIP cycles --- OT1: Current range OT1: Process variable OT1: Current start OT1: Current end *) These parameters cannot be adjusted in parameter set B, the values are the same as in parameter set A. 47

(Original for Copy) Configuration Parameter Parameter set A Parameter set B OT1: Filter time OT1: 22 ma error current OT1: HOLD mode OT1: HOLD-FIX current OT2: Current range OT2: Process variable OT2: Current start OT2: Current end OT2: Filter time OT2: 22 ma error current OT2: HOLD mode OT2: HOLD-FIX current COR: Temp coefficient COR: Ext. temp input COR: Current range COR: Current start COR: Current end ALA: Delay ALA: Sensocheck on/off REL: Usage RL1: Process variable RL1: Function RL1: Contact response RL1: Setpoint RL1: Hysteresis RL1: Delay RL2: Process variable RL2: Function RL2: Contact response 48

Configuration (Original for Copy) Parameter Parameter set A Parameter set B RL2: Setpoint RL2: Hysteresis RL2: Delay CTR: Process variable CTR: Controller type CTR: Pulse length CTR: Pulse frequency CTR: Setpoint CTR: Neutral zone CTR: P gain CTR: I time CTR: D time CTR: HOLD mode WSH: Usage --- *) WSH: Wash cycle --- WSH: Wash duration --- WSH: Contact response --- PAR: Parameter set --- selection CLK: Time format --- CLK: Time hh/mm --- CLK: Day/month --- CLK: Year --- TAG: Tag number --- *) These parameters cannot be adjusted in parameter set B, the values are the same as in parameter set A. 49

Configuration Sensor Select: sensor type, temperature probe, temperature unit, temp detection during measurement 1 2 enter 3 1 Press any arrow key. 2 Select CONF using keys, press enter. 3 Select parameter set using keys, press enter. 4 Select SENSOR menu using keys, press enter. 5 All items of this menu group are indicated by the SNS: code. Press enter to select menu, edit with arrow keys (see next page). Confirm (and proceed) with enter. 6 End: Press meas key until the [meas] mode indicator is displayed. enter 4 enter 5 meas 6 50 5 Select sensor type Select type of temp probe Temperature unit Temp detection during measurement (Man. temperature) Temp detection during calibration (Man. temperature) Calibration mode (AUTO: Buffer set) Calibration timer Calibration cycle Cleaning cycle counter Cleaning cycles Sterilization cycle counter Sterilization cycles enter

5 Menu item Action Choices Select sensor type Select sensor type using keys. Confirm with enter Configuration STANDARD ISFET INDUCON (DS) ISM-DISO (DS) MEMOSENS (DS) Select type of temp probe (not for DS) Select type of temperature probe using keys. 100 PT 1000 PT 30 NTC Confirm with enter Temperature unit Select C or F using keys. C / F Confirm with enter Temp detection during measurement (Manual temperature) Select mode using : AUTO: Measured by sensor MAN: Direct input of temperature, no measurement (see next step) EXT: Temperature specified via current input (only if TAN E enabled) Confirm with enter Modify digit using, select next digit using keys. Confirm with enter AUTO MAN EXT 20...200 C ( 4...+392 F) 51

Configuration Sensor Select: temp detection during calibration, calibration mode 1 2 enter 3 1 Press any arrow key. 2 Select CONF using keys, press enter. 3 Select parameter set using keys, press enter. 4 Select SENSOR menu using keys, press enter. 5 All items of this menu group are indicated by the SNS: code. Press enter to select menu, edit with arrow keys (see next page). Confirm (and proceed) with enter. 6 End: Press meas key until the [meas] mode indicator is displayed. enter 4 enter 5 meas 6 52 5 Select sensor type Select type of temp probe Temperature unit Temp detection during measurement (Man. temperature) Temp detection during calibration (Man. temperature) Calibration mode (AUTO: Buffer set) Calibration timer Calibration cycle Cleaning cycle counter Cleaning cycles Sterilization cycle counter Sterilization cycles enter

5 Menu item Action Choices Temp detection during calibration (Manual temperature) Select mode using : AUTO: Measured by sensor MAN: Direct input of temperature, no measurement (see next step) EXT: Temperature specified via current input (only if TAN E enabled) Confirm with enter Modify digit using, select next digit using keys. Confirm with enter Configuration AUTO MAN EXT 20...200 C ( 4...+392 F) Calibration Mode (AUTO: Buffer set) Select CALMODE using keys: AUTO: Calibration with Calimatic buffer set recognition MAN: Manual input of buffer solutions. DAT: Input of adjustment data of premeasured sensors Confirm with enter Select buffer set using keys (see buffer tables for nominal values). Confirm with enter AUTO MAN DAT -00-...-09-, -U1- Pressing the info key displays the manufacturer and nominal values in the lower line. 53

Configuration Sensor Adjust: calibration timer, calibration cycle 1 2 enter 3 1 Press any arrow key. 2 Select CONF using keys, press enter. 3 Select parameter set using keys, press enter. 4 Select SENSOR menu using keys, press enter. 5 All items of this menu group are indicated by the SNS: code. Press enter to select menu, edit with arrow keys (see next page). Confirm (and proceed) with enter. 6 End: Press meas key until the [meas] mode indicator is displayed. enter 4 enter 5 meas 6 54 5 Select sensor type Select type of temp probe Temperature unit Temp detection during measurement (Man. temperature) Temp detection during calibration (Man. temperature) Calibration mode (AUTO: Buffer set) Calibration timer Calibration cycle Cleaning cycle counter Cleaning cycles Sterilization cycle counter Sterilization cycles enter

5 Menu item Action Choices Calibration timer Calibration cycle Adjust CALTIMER using keys: OFF: No timer ADAPT: Maximum cal cycle (adjust in the next step) FIX: Fixed cal cycle (adjust in the next step) Confirm with enter Only with FIX/ADAPT: Modify digit using keys, select next digit using keys. Confirm with enter Configuration OFF/ADAPT/FIX With ADAPT, the calibration cycle is automatically reduced depending on the sensor load (high temperatures and ph values) and for digital sensors also depending on the sensor wear 0...9999 h Note for the calibration timer: When Sensocheck has been activated in the Configuration > Alarm menu, the expiration of the calibration interval is indicated by Sensoface: Display Status + Over 80% of the calibration interval has already past. + The calibration interval has been exceeded. The calibration timer settings apply to both parameter sets A and B. The time remaining until the next due calibration can be seen in the diagnostics menu (see Diagnostics chapter). 55

Configuration Sensor Adjust: CIP cleaning cycles, SIP sterilization cycles 1 2 enter 3 1 Press any arrow key. 2 Select CONF using keys, press enter. 3 Select parameter set using keys, press enter. 4 Select SENSOR menu using keys, press enter. 5 All items of this menu group are indicated by the SNS: code. Press enter to select menu, edit with arrow keys (see next page). Confirm (and proceed) with enter. 6 End: Press meas key until the [meas] mode indicator is displayed. enter 4 enter 5 meas 6 56 5 Select sensor type Select type of temp probe Temperature unit Temp detection during measurement (Man. temperature) Temp detection during calibration (Man. temperature) Calibration mode (AUTO: Buffer set) Calibration timer Calibration cycle Cleaning cycle counter Cleaning cycles Sterilization cycle counter Sterilization cycles enter

5 Menu item Action Choices CIP / SIP The following adjustments are possible for digital sensors (INDUCON, ISM): Cleaning cycle counter Select ON or OFF using keys. Activates/deactivates logging in extended logbook and counters (if provided) Confirm with enter Configuration ON/OFF Cleaning cycles Only with CIP COUNT ON: Enter value using keys. 0...9999 CYC (0025 CYC) Sterilization cycle counter Confirm with enter Select ON or OFF using ON/OFF keys. Activates/deactivates logging in extended logbook and counters (if provided) Confirm with enter Sterilization cycles Only with SIP COUNT ON: Enter value using keys. 0...9999 CYC (0025 CYC) Confirm with enter The cleaning and sterilization cycles are counted to measure the load on the sensor. Suitable for biochemical applications (process temp approx. 0...50 C, CIP temperature > 55 C, SIP temperature > 115 C). 57

Configuration Current Output 1 Output current range, current start, current end 1 1 Press any arrow key. 2 Select CONF using keys, press enter. 3 Select parameter set using keys, 2 press enter. 4 Select OUT1 menu using keys, press enter. 5 All items of this menu group are indicated by the OT1: code. enter Press enter to select menu, edit with arrow keys (see next page). Confirm (and proceed) with enter. 3 6 End: Press meas key until the [meas] mode indicator is displayed. enter 4 enter 5 Current range Process variable Current start Current end Time averaging filter Output current during error message Output current during HOLD Output current for HOLD FIX 5 enter 6 meas 58

5 Menu item Action Choices Current range Select 4-20 ma or 0-20 ma range using keys. Configuration 4-20 ma / 0-20 ma Confirm with enter Process variable Select using keys: PH: ph value ORP: Redox potential TMP: Temperature Confirm with enter PH/ORP/TMP Current start Modify digit using, select next digit using keys. Confirm with enter 2...16 ph (PH) 1999...1999 mv (ORP) 20...300 C / 4...572 F (TMP) Current end Enter value using keys. Confirm with enter 2...16 ph (PH) 1999...1999 mv (ORP) 20...300 C / 4...572 F (TMP) Assignment of measured values: Current start and current end Example 1: Range ph 0...14 Example 2: Range ph 5...7 Advantage: Higher resolution in [ph] [ph] range of interest 14 7 7 5 0 4 Output current 20 [ma] 5 4 Output current 20 [ma] 59

Configuration Current Output 1 Adjust time interval of output filter 1 1 Press any arrow key. 2 Select CONF using keys, press enter. 3 Select parameter set using keys, 2 press enter. 4 Select OUT1 menu using keys, press enter. 5 All items of this menu group are indicated by the OT1: code. enter Press enter to select menu, edit with arrow keys (see next page). Confirm (and proceed) with enter. 3 6 End: Press meas key until the [meas] mode indicator is displayed. enter 4 enter 5 Current range Process variable Current start Current end Time averaging filter Output current during error message Output current during HOLD Output current for HOLD FIX 5 enter 6 meas 60

5 Menu item Action Choices Time averaging Enter value using 0...120 SEC filter keys. (0000 SEC) Configuration Confirm with enter Time Averaging Filter To smoothen the current output, a low-pass filter with adjustable filter time constant can be switched on. When there is a jump at the input (100 %), the output level is at 63 % after the time interval has been reached. The time interval can be set from 0 to 120 sec. If the time interval is set to 0 sec, the current output directly follows the input. Please note: The filter only acts on the current output, not on the display, the limit values, or the controller! During HOLD the filter is not applied. This prevents a jump at the output. Display / Controller ph Time interval 0...120 s 0/4-20 ma Temp Time interval 0...120 s 61

Configuration Current Output 1 Output current during Error and HOLD 1 1 Press any arrow key. 2 Select CONF using keys, press enter. 3 Select parameter set using keys, 2 press enter. 4 Select OUT1 menu using keys, press enter. 5 All items of this menu group are indicated by the OT1: code. enter Press enter to select menu, edit with arrow keys (see next page). Confirm (and proceed) with enter. 3 6 End: Press meas key until the [meas] mode indicator is displayed. enter 4 enter 5 Current range Process variable Current start Current end Time averaging filter Output current during error message Output current during HOLD Output current for HOLD FIX 5 enter 6 meas 62

5 Menu item Action Choices Output current during error message Select ON or OFF using keys. Confirm with enter ON/OFF Configuration Output current during HOLD Output current for HOLD FIX LAST: During HOLD the last measured value is maintained at the output. FIX: During HOLD a value (to be entered) is maintained at the output. Select using Confirm with enter Only with FIX selected: Enter current which is to flow at the output during HOLD Enter value using keys. LAST/FIX 00.00...22.00 ma (21.00 ma) Confirm with enter Output Signal During HOLD: Output current [ma] Output signal HOLD Setting FIX = 21.0 ma Output signal for HOLD LAST setting 21 4 HOLD active HOLD active 63

Configuration Current Output 2 Output current range, current start, current end 1 1 Press any arrow key. 2 Select CONF using keys, press enter. 3 Select parameter set using keys, 2 press enter. 4 Select OUT2 menu using keys, press enter. 5 All items of this menu group are indicated by the OT2: code. enter Press enter to select menu, edit with arrow keys (see next page). Confirm (and proceed) with enter. 3 6 End: Press meas key until the [meas] mode indicator is displayed. enter 4 enter 5 Current range Process variable Current start Current end Time averaging filter Output current during error message Output current during HOLD Output current for HOLD FIX 5 enter 6 meas 64

Configuration Temperature Compensation TC process medium, current input for temp measurement 1 1 Press any arrow key. 2 Select CONF using keys, press enter. 3 Select parameter set using keys, 2 press enter. 4 Select CORRECTION menu using keys, press enter. 5 All items of this menu group are indicated by the COR: code. enter Press enter to select menu, edit with arrow keys (see next page). Confirm (and proceed) with enter. 3 6 End: Press meas key until the [meas] mode indicator is displayed. 4 enter enter 5 meas 6 Temperature compensation, process medium Current input for ext. temperature measurement Current range Current start Current end 5 enter 66

5 Configuration Menu item Action Choices Temp compensation, process medium For ph measurement only: Enter temperature compensation of the process medium. Enter value using keys. Confirm with enter 19.99...+19.99 %/K Current input for ext. temperature measurement Only if enabled via TAN and selected during configuration (SENSOR). Select ON or OFF using keys. ON/OFF Confirm with enter Current range Select desired range using keys. 4-20 ma / 0-20 ma Confirm with enter Current start Modify digit using, select next digit using keys. Confirm with enter Input range: 20...200 C / 4...392 F Current end Enter value using keys. Input range: 20...200 C/ 4...392 F Confirm with enter 67

Configuration Alarm Alarm delay, Sensocheck 1 1 Press any arrow key. 2 Select CONF using keys, press enter. 3 Select parameter set using keys, 2 press enter. 4 Select ALARM menu using keys, press enter. 5 All items of this menu group are indicated by the ALA: code. enter Press enter to select menu, edit with arrow keys (see next page). Confirm (and proceed) with enter. 3 6 End: Press meas key until the [meas] mode indicator is displayed. 4 enter 5 enter Delay Sensocheck 5 enter 6 meas 68

5 Menu item Action Choices Alarm delay Enter value using keys. Confirm with enter Configuration 0...600 SEC (010 SEC) Sensocheck Select Sensocheck (continuous monitoring of glass and reference electrode) Select ON or OFF using keys. Confirm with enter. (At the same time, Sensoface is activated. With OFF, Sensoface is also switched off.) ON/OFF Alarm R3 17 18 Alarm Contact The alarm contact is closed during normal operation (N/C). It opens in the case of alarm or power outage. As a result, a failure message is provided even in the case of wer failure or line breakage (fail-safe behavior). For contact ratings, see Specifications. Error messages can also be signaled by a 22 ma output current (see Error messages and Configuration Output 1/Output 2). Operating behavior of the alarm contact: see Operating States table. The alarm delay time delays the color change of the display backlighting to red, the 22 ma signal (if configured), and the alarm contact switching. 69

Configuration Limit Function Relay 1 1 1 Press any arrow key. 2 Select CONF using keys, press enter. 3 Select parameter set using keys, 2 press enter. 4 Select REL1/REL2 menu using keys, press enter. 5 All items of this menu group are indicated by the RL1: code. enter Press enter to select menu, edit with arrow keys (see next page). Confirm (and proceed) with enter. 3 6 End: Press meas key until the [meas] mode indicator is displayed. enter 4 enter 5 meas 6 5 Use of relays Select process variable Limit 1 switching characteristics (function) Limit 1 contact type Limit 1 setpoint Limit 1 hysteresis Limit 1 delay enter 70

5 Menu item Action Choices Use of relays Select in the text line Select process variable using keys: Limit function (LIMITS) Controller (CONTROLLER) Configuration LIMITS / CONTROLLER Please note: Selecting CONTROLLER leads to Controller menu group CTR. Confirm with enter Select desired process PH/ORP/TMP variable using keys. Confirm with enter Limit 1 function Limit 1 contact response Select desired function using arrow keys. LoLevel: active if value falls below / HiLevel: active if value exceeds setpoint Confirm with enter N/O: normally open contact N/C: normally closed contact Select using keys. Confirm with enter Lo LEVL / Hi LEVL N/O / N/C Limit 1 setpoint Enter setpoint using keys. 2.00...16.00 PH (00.00 PH) / -1999...1999 mv / 20...200 C Confirm with enter 71

5 Menu item Action Choices Limit 1 Select hysteresis using 0...10.00 PH hysteresis keys. (00.50 PH) Configuration Limit 1 delay Confirm with enter The contact is activated with delay (deactivated without delay) Adjust delay using keys. Confirm with enter 0...9999 SEC (0010 SEC) Application of Hysteresis: Limit Lo Hysteresis + Setpoint Signal Limit Hi Setpoint Hysteresis - Signal Contact 1 0 Contact 1 0 73

Configuration Limit Function Relay 2 1 1 Press any arrow key. 2 Select CONF using keys, press enter. 3 Select parameter set using keys, 2 press enter. 4 Select REL1/REL2 menu using keys, press enter. 5 All items of this menu group are indicated by the RL2: code. enter Press enter to select menu, edit with arrow keys (see next page). Confirm (and proceed) with enter. 3 6 End: Press meas key until the [meas] mode indicator is displayed. enter 4 enter 5 meas 6 5 Use of relays Select process variable Limit 2 switching characteristics (function) Limit 2 contact type Limit 2 setpoint Limit 2 hysteresis Limit 2 delay enter 74

5 Configuration Menu item Action Choices Select process variable (CHANNEL) Select desired process variable using keys. Confirm with enter PH/ORP/TMP Limit 2 function (FUNCTION) Limit 2 contact type (CONTACT) Limit 2 setpoint (LEVEL) Select desired function using arrow keys. Confirm with enter N/O: normally open contact N/C: normally closed contact Select using keys. Confirm with enter Enter setpoint using keys. Confirm with enter Lo LEVL / Hi LEVL N/O / N/C 2.00...16.00 PH (14.00 PH) / -1999...1999 mv / 20...200 C Limit 2 hysteresis (HYSTERESIS) Limit 2 delay (DELAYTIME) Select hysteresis using keys. Confirm with enter The contact is activated with delay (deactivated without delay) Adjust delay using keys. Confirm with enter 0...10.00 PH (00.50 PH) 0...9999 SEC (0010 SEC) Application of Hysteresis: Limit Lo Hysteresis + Setpoint Signal Limit Hi Setpoint Hysteresis - Signal Contact 1 0 Contact 1 0 75