WESAN WP E
BULK WATER METER | WOLTMAN
Fully electronic bulk water meter for measuring the flow in supply lines with high flow at low pressure loss.
Highly accurate recording of all billing data.
- Calibratable and exchangeable measuring insert
- For horizontal and vertical installation
- Electronic sensor control for recording flow rate
- Lithium battery, lifetime up to 12 years
- Optical ZVEI interface equipped as standard
- Adjustable reading date for billing
- Rotatable integrator
- Single-line 7-digit display for easy meter reading
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Electronic - Basic features
Ambient class OIML R49 class C / MID E2 + M1 Protection class IP 54 or IP 68 Interfaces standard Optical ZVEI Interfaces optional1 M-Bus, L-Bus, pulse 1 Possible combinations
- M-Bus / pulse / pulse
- L-Bus / forward pulse
- only M-Bus (IP 54, standard delivery without M-Bus cable)
Note: HYDRO-SET Software for configuration of meters, readout of measured values and printout of meter logs. Available under www.diehl.com/metering (Products - downloads) -
Display
Display indication LCD, 7-digit Unit m³/h - l/h - m³ - l Total values 9,999.999 - 999,999.9 - 99,999.99 - 9,999.999 Values displayed Flow rate -
Volume - / Pulse open collector
Max. frequency Hz 90 Max. input voltage V 30 Max. input current mA 27 Max. voltage drop at active output V/mA 2/27 Max. current through inactive output μA/V 5/30 Max. reverse voltage without destroying outputs V 6 Pulse duration ms 5.5 Min. pulse pause ms 5.5 -
Supply voltage
Operating voltage UN VDC 3.0 (lithium battery) Battery lifetime Up to 12 years Nominal power PN μW 30 -
Interfaces - Overview
Optical ZVEI interface for communication, M-Bus protocol M-Bus According to EN 1434-3. Data reading and parametrization are via two wires with polarity reversal protection. L-Bus Interface for the radio module IZAR RADIO EXTERN Pulse Output for volume (open collector) -
Pulse interface - Specification
DN 50 - 125 | Pulse rates l/pulse Decadic 1 ... 1000 DN 50 - 125 | Display 1 digit after comma DN 50 - 125 | Pulse value 1 l/pulse 1 (factory setting) DN 50 - 125 | Pulse value 2 l/pulse 100 (factory setting) DN 150 | Pulse rates l/pulse Decadic 10 ... 10000 DN 150 | Display 0 digits after comma DN 150 | Pulse value 1 l/pulse 10 (factory setting) DN 150 | Pulse value 2 l/pulse 1000 (factory setting) Pulse variants Two forward pulses (factory settings); one forward and one backward pulse; pulse and direction signal
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General
Temperature range °C 1 ... 30 Temperature safety °C 1 ... 50 Ambient operating temperature °C 1 ... 55 Ambient storage temperature °C 1 ... 55 Nominal pressure PN bar 162 2 special versions on request -
Technical data
Nominal diameter DN mm 50 65 80 100 125 150 200 2503 3003 4003 5003 Permanent flow rate Q3 m³/h 40 63 100 160 160 250 250 1000 1600 1600 2500 Minimum flow rate Q1 m³/h 0.63 0.63 1 1.6 1.6 3.125 5 10 16 16 25 Transitional flow rate Q2 m³/h 1.02 1.01 1.6 2.56 2.56 5 8 16 25.6 25.6 40 Overload flow rate Q4 m³/h 50 78.75 125 200 200 312.5 312.5 1250 2000 2000 3125 Starting flow rate l/h 90 130 160 190 190 1500 2500 5000 10000 15000 20000 Flow rate at 0.1 bar pressure loss m³/h 29 50 95 95 95 290 550 800 1250 3000 6000 Pressure loss at Q3 bar 0.19 0.16 0.14 0.28 0.29 0.08 0.02 0.16 0.16 0.03 0.02 3 available only without approval -
Approval
Nominal diameter DN mm 50 65 80 100 125 150 200 2503 3003 4003 5003 MID (DE-13-MI001-PTB005) • • • • • • • - - - - Dynamic range (Q3/Q1) R4 63•H 100 100 100 100 50 50 100 100 100 100 Potable water KTW / W270 KTW / W270 KTW / W270 KTW / W270 KTW / W270 KTW / W270 KTW / W270 KTW / W270 KTW / W270 KTW / W270 KTW / W270 3 available only without approval
4 other dynamics on request -
Dimensions
Nominal diameter DN mm 50 65 80 100 125 150 200 2503 3003 4003 5003 Overall length L mm 200 / 3005 200 2005 / 225 / 3505 250 / 3505 250 300 350 450 500 500 500 Flange diameter D mm 165 185 200 220 250 285 340 405 460 580 715 Hole circle diameter PN 10 / PN 16 K mm - / 125 - / 145 160 / 160 - / 180 - / 210 - / 240 295 / 295 350 / 355 400 / 410 515 / 525 620 / 650 Number of screwholes PN 10 / PN 16 pcs - / 4 - / 4 4 / 8 - / 8 - / 8 - / 8 8 / 12 12 / 12 12 / 12 16 / 16 20 / 20 Screwhole diameter PN 10 / PN 16 D1 mm - / 18 - / 18 18 / 18 - / 18 - / 18 - / 22 22 / 22 23 / 27 23 / 27 27 / 30 27 / 33 Height H mm 75 83 89 105 115 135 163 193 230 290 360 Height H1 mm 123 123 154 154 154 245 245 242 290 311 361 Height to remove measuring insert mm 225 225 275 275 275 475 475 472 520 580 660 Meter width mm 155 155 200 220 250 285 340 405 460 580 715 Diameter Ø B mm 110 110 110 110 110 110 110 110 110 110 110 Weight kg 10.2 11.2 13 13 21.5 39 47 75 165 190 300 3 available only without approval
5 special body lengths on request -
Special versions
- Versions with different nominal pressure on request
- Flange for ANSI and BS on request
- CuZn parts in V2A on request
- Temperature up to 90 °C on request
- Special pulse values on request -
Pressure loss graph / Typical error graph
Pressure loss graph Typical error graph
