EW773 Series Ultrasonic Hydronic Meters FOR HEATING AND COOLING APPLICATIONS

Transcription

1 Design EW7730K1200 qi: 0.015m 3 /h qp: 1.5m 3 /h qs: 3m 3 /h O: C DN: 15 IP 54 PN: 16 Typ: T.sensor: Pt 500 O: C O: K Environm. class: E1 Mechanical class: M1 Metrological class: 2 M DE-06-MI004-PTB017 Hydrometer heatmeter Inst. place: low temp. Prod.year: N: Hydronic meters of the EW773 Series consist of: Electronic energy integrator with cable connection to the ultrasonic volume measuring component, supply and return temperature probe Ultrasonic volume measuring component with external threads according to ISO228 (DN15...DN25) or flanges (DN25 DN80) Materials Housing of electronic energy integrator made of black and transparent plastic Housing of ultrasonic volume measuring component made of brass EW773 Series Ultrasonic Hydronic Meters FOR HEATING AND COOLING APPLICATIONS Application PRODUCT DATA Static compact hydronic meter with electronic measurement based on the ultrasonic principle, consisting of electronic energy integrator, ultrasonic volume measuring component and temperature sensors. Metering of hydronic heating and / or cooling energy in hydronic systems based on volume, supply and return temperature. EW7730 models are suitable for energy metering of heating systems. EW7731 models are suitable for energy metering of cooling and combined cooling and heating systems. Features MID approval First approval in Europe for ultrasonic heat meter with dynamic range of qi/qp m³/h 1:250 in class 2 (qp 1.5 / 2.5 / 6.0m³/h) Complete dynamic range 1:1, years battery lifetime Meters up to qp 6 with patented free-beam principle and robust swirl-free flow around reflector made of stainless steel Meters qp10 and larger with direct beam principle Standard housing dimensions Can be used for heating (EW7730), cooling or both (EW7731) Available in nominal sizes from qp 0.6 up to 40m³/h Measuring accuracy meets the requirements of EN1434 class 2 and 3 No calming leg required on inlet or outlet for sizes up to qp 0.6m³/h Power save mode Remote reading via M-Bus, RF, RS232 or optical interface Optional plug and play modules Individual tariff functions History memory for 24 months Extensive diagnostic displays Windows based HYDRO-SET parametrization software for optimum adaptation to the user's specific needs Honeywell Subject to change EN0H-2600GE25 R1209

2 Specifications Medium Medium temperature Ambient temperature Operating pressure kvs (cv)-values Ambient class Protection class Type Measuring process Display Units Water, quality to VDI2035 see table below 0 55 C ( F) Threaded versions: PN16 Flanged versions: PN25 see table below EN1434 class C / A IP54 / IP64 (EW7731 volume measuring component only) Static heat meter to EN1434 Ultrasonic volume measurement LCD, 7-digit MWh kwh GJ Gcal MBtu Total values Values displayed Temperature sensors Sensor current Measuring cycle Max. temperature difference Min. temperature difference Power Energy Flow rate Temperature Pt500 with 2-wire leads Pt500 peak < 2; rms < 0.012mA Battery supply: 16s Mains unit supply: 1s 177K 3K Starting temperature difference 0.25K Absolute temperature measuring range Operating voltage C ( F) qp0.6 6: 3.0V lithium battery qp10 40: 3.6V lithium battery qp Medium temperature Flow rates EW7730: C ( F) EW7731: C ( F) EW7730: C ( F) EW7731: C ( F) Maximum (qs) m 3 /h Nominal (qp) m 3 /h Minimum (qi) l/h / Starting l/h kvs (cv)-value m 3 /h 2.06 (2.41) 5.27 (6.17) 5.48 (6.41) 7.91 (9.25) 16.7 (19.5) 16.8 (19.7) 32.5 (38.0) 61.2 (71.6) 94.5 (111) 127 (149) p at qp mbar NOTE: Medium temperature may be limited by installation position, see chapter 'Installation' on page 6. 1 when mounted in horizontal position EN0H-2600GE25 R Honeywell Subject to change

3 Function Integrator The integrator contains all the necessary circuits for recording flow rate and temperature and for calculating, logging and displaying the data. The integrator housing can be mounted directly onto the volume measuring component or to the wall. The meter can be conveniently read from a single line sevendigit display with units and symbols. A pushbutton provides user friendly control of the various display loops. All failures and faults are recorded automatically and displayed on the LCD screen. To protect the reading data, all relevant data is saved in a non-volatile memory (EEPROM). This memory saves the measured values, device parameters and types of error at regular intervals Ultrasonic volume measuring component The ultrasonic technology of the volume measuring component permits very high measuring accuracy and can be used in the supply or return pipeline. The volume measuring component meets the requirements of EN1434 / class 2 and 3. The standard cable length between the calculator and the volume measuring component is 1.5m for meters up to qp 6 and 2.5m for meters qp (other cable lengths optionally on request). Supply voltage: Standard (12 year life) Meters up to qp 6: lithium battery 3.0V DC Meters qp 10-40: lithium battery 3.6V DC Optional (please enquire): Meters up to qp 6: lithium battery 3.6V DC (16-year life) Meters up to qp 25: mains unit 230V AC or 24V AC Temperature sensors Pairs of Pt500 temperature sensors with 2-wire leads are used. Interfaces The EW773 Series is equipped as standard with a ZVEI optical interface with the M-Bus protocol as per EN1434. This interface is used, for example, for communication with the HYDRO- SET parametrization software. The meter has two slots for plug and play modules. One slot for a function module and one slot for a communications module. The following communication modules are available as options: RF module M-Bus module to EN1434 RS232 module The RS232 module is a serial interface and permits data exchange with the heat meter. A special data cable is required for this purpose. The RF module communicates a list of predefined data records. This can be edited by the HYDRO-SET software. Pulse Input Two additional pulse inputs are available. The pulse value and the unit is configurable for energy, water, gas or electrical metering by the HYDRO-SET software. Also two accounting days are available for both inputs. Pulse Output The meter provides levels for two optional external pulse outputs, which can be freely programmed using the HYDRO- SET software. Possible pulse output values Energy (standard setting) Volume (standard setting) Tariff energy 1 Tariff energy 2 Tariff condition 1, limit switch Tariff condition 2, limit switch Energy error Volume error Module Combinations The following module combinations for data transmission are available ex works or for retrofitting in the field: Function modules Pulse input module (2 inputs) Pulse output module (2 outputs) Pulse input module and pulse output module (1 input and 1 output) Combined pulse in- and output module (2 inputs / 1 output) Communication modules M-Bus RS232 RF Accessories / Software The HYDRO-SET parametrization software based on the M- Bus is a convenient tool for handling the hydronic meter. It runs on Windows 2000, and XP and is used for logs memories: setting up for operation reading out measured values printing of meter logs meter configuration Event Memory Events such as changes and faults are stored in a non-volatile memory with a capacity of up to 31 entries. The following events are recorded: Checksum error Temperature measurement error Ultrasonic echo time measurement errors Start and end of test mode Monthly Memory The EW773 Series has a history memory of 24 months. The following values are stored in the EEPROM on the programmed date 1 31 of the actual month: Date / Time Volume Energy Error day counter Maximum monthly flow rate Maximum monthly power Date of maximum monthly flow rate Date of maximum monthly power Tariff energy 1 Tariff energy 2 Tariff definition 1 Tariff definition 2 Impulse counter 1 Impulse counter 2 Honeywell Subject to change 3 EN0H-2600GE25 R1209

4 Log Memory The log memory is used to store consumption values. The storage frequency can be selected from various storage intervals (1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 minutes or the default setting of 24 hours, see Table 1). The data saved in the log memory can be used for the following analyses: Reading the meter on a certain day Example: if the day for reasing is (1 October), the meter reading is displayed for the period from of the previous year to of the current year. Comparison of the last consumption period with the preceding period Table 1. Extract of possible log memory settings Storage interval Values Number of data records Recording period 5 minutes Error status, overload hours 15 minutes time temperature, hours 1 hour overload time flow rate, days 24 hours forward temperature, return temperature, date and time, energy, tariff energy 1, tariff energy 2, tariff definition 1, tariff definition 2, volume, error day counter days Maximum Values The integrator creates max. values for power and flow rate based on consumption time, which are stored in the EEPROM. The integration intervals are adjustable to 6, 15, 30 or 60 minutes. Default setting is 60 minutes. Tariff Function The integrator offers two optional tariff memories for monitoring plant load states for limit tariffs. Extensive tariff conditions make it possible to adapte the meter individually to the required customer-specific applications. Apart from the energy a timebased tariff can also be programmed. The following limit types are possible (this example applies to the display with 3 decimal places): Table 2. Limit types Type LIMIT LIMIT resolution T C 1 C T C 1 C P kw 1 kw Q l/h 100 l/h Display Control The readings are displayed on the meter by a 7-digit LCD with units and symbols Loop Structure The EW773 Series display has six loops. Some display windows consist of two (to maximum seven) displays that are shown alternately at 4-second intervals. Some pictures in the loops can be deactivated separately. NOTE: For quick visual guidance, the loops in the display are numbered from 1 to 6. The main loop with the current data, e.g. for energy, volume and flow rate, is programmed as default setting. In the standard setting loop No. 5 (tariff loop) is not active. Fig. 1. Loop overview EN0H-2600GE25 R Honeywell Subject to change

5 Table 3. Display Contents Loop Sequence Window 1 Window 2 Window Accumulated energy 1.2 Volume Main loop 1.3 Flow rate 1.4 Power 1.5 Forward temperature Return temperatur 1.6 Difference temperature 1.7 Operating hours 1.8[OFF] Monthly peak power Date 1.9 Error code 1.10 Display test 1.11[OFF] Tariff energy [OFF] Tariff energy [OFF] In 1 Pulse input counter [OFF] In 2 Pulse input counter 2 Loop Sequence Window 1 Window 2 Window 3 [OFF] Window Accounting date 1 Accounting date 1 energy Accounting date 1 volume Accd Accounting date 1 Accounting date 1 Accounting date 1 Accd 1 previous year Accounting date previous year energy previous year volume 2.3 Accd 1 Accounting date 1 in the future loop 2.4 Accounting date 2 Accounting date 2 energy Accounting date 2 volume Accd Accounting date 2 Accounting date 2 Accounting date 2 Accd 2 previous year previous year energy previous year volume 2.6 Accd 2 Accounting date 2 in the future Loop Sequence Window 1 Window 2 Window Current date 3.2 SEC_Adr Secundary address Info loop 3.3 Pri_Adr Primary address 3.4 Pt 100 r or Pt 500 r 3.5 Monthly peak flow rate Date max. flow rate 3.6 Monthly peak power Date max. power 3.7 Integration interval (maximum value) 3.8 Number of error day s 3.9 Out1 Pulse value and unit pulse output Out2 Pulse value and unit pulse output 2 Loop Sequence Window 1 Window 2 Window In1 Pulse input counter 1 Pulse value In2 Pulse input counter 2 Pulse value 2 Pulse 4.3[OFF] Accounting date 1 In1 Acc. date 1 Pulse value 1 input loop 4.4[OFF] Accounting date 1 In2 Acc. date 1 Pulse value 2 4.5[OFF] Accounting date 1 previous year In1 Acc. date 1 previous year Pulse value 1 4.6[OFF] Accounting date 1 previous year In2 Acc. date 1 previous year Pulse value 2 4.7[OFF] Accounting date 2 In1 Acc. date 2 Pulse value 1 4.8[OFF] Accounting date 2 In2 Acc. date 2 Pulse value 2 4.9[OFF] Accounting date 2 previous year In1 Acc. date 2 previous year Pulse value [OFF] Accounting date 2 previous year In2 Acc. date 2 previous year Pulse value 2 Honeywell Subject to change 5 EN0H-2600GE25 R1209

6 Loop Sequence Window 1 Window 2 Window [OFF] Tariff energy 1 Tariff function 1 (e.g. t 01 ) Limit tariff 1 5.2[OFF] Tariff energy 2 Tariff function 2 (e.g. t 02 ) Limit tariff 2 5.3[OFF] Accounting date 1 Accounting date 1 tariff energy 1 Accd 1 Tariff 5.4[OFF] Accounting date 1 Accounting date 1 tariff energy 2 Accd 1 loop 5.5[OFF] Accounting date 1 previous year Accounting date 1 previous year Accd 1 tariff energy 1 5.6[OFF] Accounting date 1 previous year Accounting date 1 previous year Accd 1 tariff energy 2 5.7[OFF] Accounting date 2 Accounting date 2 tariff energy 1 Accd 2 5.8[OFF] Accounting date 2 Accounting date 2 tariff energy 2 Accd 2 5.9[OFF] Accounting date 2 previous year Accounting date 2 previous year tariff energy 1 Accd [OFF] Accounting date 2 previous year Accounting date 2 previous year tariff energy 2 Accd 2 Loop Sequence Window 1 Window 2 Window 3[OFF] 6 Monthly loop [OFF] = not active Window 4[OFF] Window 5 Window 6 Window Last month Energy Tariff energy 1 Tariff energy 2 Volume Max. flow rate Max. Power 6.2 Month 1 Energy Tariff energy 1 Tariff energy 2 Volume Max. flow rate Max. Power 6.3 Month -2 Energy Tariff energy 1 Tariff energy 2 Volume Max. flow rate Max. Power Month -23 Energy Tariff energy 1 Tariff energy 2 Volume Max. flow rate Max. Power Easy Operation A pushbutton mounted on the front of the meter is used to switch to the various displays. The button can be pressed for a short or long time. A short press of the button (< 3 seconds) switches to the next display within a loop and a long press (> 3 seconds) switches to the next display loop. The "Energy" window (sequence 1.1) in the main loop is the basic display. The meter switches automatically to power save mode if the button is not pressed for approx. 4 minutes and returns to the basic display when the button is pressed again. The loop settings can be programmed to suit the customer's individual requirements using the HYDRO-SET software. Installation EW773 Series hydronic meters must be installed in the return pipeline. The correct flow direction is indicated by a flow arrow on the flange or body. A calming leg of 5 x DN before the meter is required for sizes qp10 and higher. The max. medium temperature is as follows: 130 C when horizontally mounted and electronics (black enclosure) turned sideways for sizes qp= m³/h, or 150 C when horizontally mounted and electronics turned sideways for sizes qp= m³/h 120 C when horizontally mounted and electronics turned upwards 120 C when vertically mounted In any case the energy counter must be separated from the volume measuring unit if the medium temperature exceeds 90 C" The energy calculator can be installed on the meter or separate from the meter. The volume measuring component and the energy calculator of meters up to qp6 are connected by a permanently fixed cable with a length of 1.5m. The cable between the the volume measuring component and the energy calculator of meters qp10 and larger has to be installed, wiring instructions see below. During measurement the meter must be completely filled with Wiring The Volume Measuring Component and the energy meter must be connected as follows (also see Fig. 2.): 9 red (+) 10 yellow (signal) 11 blue (-) Fig. 2. Wiring water. EN0H-2600GE25 R Honeywell Subject to change

7 Dimensions 150 B R G h d 50 H L L1 L F D Fig. 3. Dimensions qp= m 3 /h NOTE: Fig. 4. Dimensions qp= m 3 /h All dimensions in mm unless stated otherwise. Table 4. Dimensions Nominal size qp [m 3 /h] 0.6/1.0/ DN size Body length L [mm] Overall length with fittings Height of pipe axis to top of electronics Height of pipe axis to bottom of valve housing L1 [mm] H [mm] h [mm] Body thread G [inch] G3/4B G1B G1 1/4B Flanged G1 1/4B Flanged Flanged Flanged Flanged Flanged Fitting thread (accessory) R [inch] R1/2 R3/4 R1 R1 Flange diameter D [mm] Flange dimension F [mm] Bolt circle diameter d [mm] Weight [kg] NOTE: Threaded tailpieces are not supplied with the heat meter Honeywell Subject to change 7 EN0H-2600GE25 R1209

8 Ordering Information Table 5. Order Specification Overview Size qp DN size Length Connection Interface OS-No. EW7730 OS-No. EW m 3 /h DN15 110mm G3/4B None EW7730A0100 EW7731A m 3 /h DN15 110mm G3/4B None EW7730A0600 EW7731A m 3 /h DN15 110mm G3/4B None EW7730A1200 EW7731A m 3 /h DN20 130mm G1B None EW7730A2000 EW7731A m 3 /h DN20 260mm G1 1/4B None EW7730A2800 EW7731A m 3 /h DN25 260mm Flanges PN25 None EW7730A3000 EW7731A m 3 /h DN20 260mm G1 1/4B None EW7730A3600 EW7731A m 3 /h DN32 260mm Flanges PN25 None EW7730A4000 EW7731A m 3 /h DN40 300mm Flanges PN25 None EW7730A4800 EW7731A m 3 /h DN50 270mm Flanges PN25 None EW7730A5200 EW7731A m 3 /h DN65 300mm Flanges PN25 None EW7730A6000 EW7731A m 3 /h DN80 300mm Flanges PN25 None EW7730A7000 EW7731A m 3 /h DN15 110mm G3/4B M-Bus EW7730M0100 EW7731M m 3 /h DN15 110mm G3/4B M-Bus EW7730M0600 EW7731M m 3 /h DN15 110mm G3/4B M-Bus EW7730M1200 EW7731M m 3 /h DN20 130mm G1B M-Bus EW7730M2000 EW7731M m 3 /h DN20 260mm G1 1/4B M-Bus EW7730M2800 EW7731M m 3 /h DN25 260mm Flanges PN25 M-Bus EW7730M3000 EW7731M m 3 /h DN20 260mm G1 1/4B M-Bus EW7730M3600 EW7731M m 3 /h DN32 260mm Flanges PN25 M-Bus EW7730M4000 EW7731M m 3 /h DN40 300mm Flanges PN25 M-Bus EW7730M4800 EW7731M m 3 /h DN50 270mm Flanges PN25 M-Bus EW7730M5200 EW7731M m 3 /h DN65 300mm Flanges PN25 M-Bus EW7730M6000 EW7731M m 3 /h DN80 300mm Flanges PN25 M-Bus EW7730M7000 EW7731M m 3 /h DN15 110mm G3/4B M-Bus+2 pulse inputs EW7730K0100 EW7731K m 3 /h DN15 110mm G3/4B M-Bus+2 pulse inputs EW7730K0600 EW7731K m 3 /h DN15 110mm G3/4B M-Bus+2 pulse inputs EW7730K1200 EW7731K m 3 /h DN20 130mm G1B M-Bus+2 pulse inputs EW7730K2000 EW7731K m 3 /h DN20 260mm G1 1/4B M-Bus+2 pulse inputs EW7730K2800 EW7731K m 3 /h DN25 260mm Flanges PN25 M-Bus+2 pulse inputs EW7730K3000 EW7731K m 3 /h DN20 260mm G1 1/4B M-Bus+2 pulse inputs EW7730K3600 EW7731K m 3 /h DN32 260mm Flanges PN25 M-Bus+2 pulse inputs EW7730K4000 EW7731K m 3 /h DN40 300mm Flanges PN25 M-Bus+2 pulse inputs EW7730K4800 EW7731K m 3 /h DN50 270mm Flanges PN25 M-Bus+2 pulse inputs EW7730K5200 EW7731K m 3 /h DN65 300mm Flanges PN25 M-Bus+2 pulse inputs EW7730K6000 EW7731K m 3 /h DN80 300mm Flanges PN25 M-Bus+2 pulse inputs EW7730K7000 EW7731K7000 Scope of Delivery EW773 Series heat meter with supply and return temperature sensor 2 sealings Fitting for installation of supply temperature sensor Wall mounting plate Operating and setup instructions EN0H-2600GE25 R Honeywell Subject to change

9 Accessories Union nut, sealing and externally threaded red bronze tailpiece DN 15 VA7401A015 DN 20 VA7401A020 DN 25 VA7401A025 Sanpress red bronze compression-fitting with sealing DN15, for 15 mm pipe-ø VA7404A015 DN15, for 18 mm pipe-ø VA7404A018 DN20, for 22 mm pipe-ø VA7404A020 DN25, for 28 mm pipe-ø VA7404A025 Tailpiece for connection of supply temperature sensor R1/2" external thread, EWA087HY003 M10x1 sensor thread G1/4" external thread, EWA M10x1 sensor thread Brass immersion pockets (for use with MID meters) 35mm EWA mm EWA mm EWA mm EWA Union nut, sealing and internally threaded red bronze tailpiece DN 15 VA7405A015 DN 18 VA7405A018 DN 20 VA7405A020 DN 25 VA7405A025 Ballvalve with connection for supply temperature sensor G1/2" internal thread EWA087HY004 G3/4" internal thread EWA087HY005 G1" internal thread EWA087HY006 Ballvalve with two side connections G1/4" internal thread and one blind stop G1/2" internal threads VB550SY2015 G3/4" internal threads VB550SY2020 G1" internal threads VB550SY2025 G1 1/4" internal threads VB550SY2032 G1 1/2" internal threads VB550SY2040 NOTE: Only available in packing units of 6 pcs or 8 pcs (3/4") For connection of supply temperature sensor adapter EWA is required Measuring Accuracy Modules M-Bus communication EWA module (for upgrade of EW773xA types) Pulse output module EWA (2 outputs) Pulse input module EWA (2 inputs) RF communication module EWA Combined pulse in- and EWA output module RS232 interface module EWA with cable Fig. 5. Measuring accuracy to EN1434 Class 2 Honeywell Subject to change 9 EN0H-2600GE25 R1209

10 Flow Diagram 0, Fig. 6. Pressure drop diagram EN0H-2600GE25 R Honeywell Subject to change

11 Honeywell Subject to change 11 EN0H-2600GE25 R1209

12 Environmental and Combustion Control Honeywell GmbH Hardhofweg Mosbach, Germany Phone: +49 (6261) 810 Fax: +49 (6261) EN0H-2600GE25 R1209 December Honeywell International Inc. Subject to change without notice Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Rolle, Z.A. La Pièce 16, Switzerland or its authorized representative.