WESAN WP E

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
  • Electronic - Basic features
    Ambient classOIML R49 class C / MID E2 + M1
    Protection classIP 54 or IP 68
    Interfaces standardOptical ZVEI
    Interfaces optional1M-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 indicationLCD, 7-digit
    Unitm³/h - l/h - m³ - l
    Total values9,999.999 - 999,999.9 - 99,999.99 - 9,999.999
    Values displayedFlow rate
  • Volume - / Pulse open collector
    Max. frequencyHz90
    Max. input voltageV30
    Max. input currentmA27
    Max. voltage drop at active outputV/mA2/27
    Max. current through inactive outputμA/V5/30
    Max. reverse voltage without destroying outputsV6
    Pulse durationms5.5
    Min. pulse pausems5.5
  • Supply voltage
    Operating voltageUNVDC3.0 (lithium battery)
    Battery lifetimeUp to 12 years
    Nominal powerPNμW30
  • Interfaces - Overview
    OpticalZVEI interface for communication, M-Bus protocol
    M-BusAccording to EN 1434-3. Data reading and parametrization are via two wires with polarity reversal protection.
    L-BusInterface for the radio module IZAR RADIO EXTERN
    PulseOutput for volume (open collector)
  • Pulse interface - Specification
    DN 50 - 125 | Pulse ratesl/pulseDecadic 1 ... 1000
    DN 50 - 125 | Display1 digit after comma
    DN 50 - 125 | Pulse value 1l/pulse1 (factory setting)
    DN 50 - 125 | Pulse value 2l/pulse100 (factory setting)
    DN 150 | Pulse ratesl/pulseDecadic 10 ... 10000
    DN 150 | Display0 digits after comma
    DN 150 | Pulse value 1l/pulse10 (factory setting)
    DN 150 | Pulse value 2l/pulse1000 (factory setting)
    Pulse variantsTwo forward pulses (factory settings); one forward and one backward pulse; pulse and direction signal
  • General
    Temperature range°C1 ... 30
    Temperature safety°C1 ... 50
    Ambient operating temperature°C1 ... 55
    Ambient storage temperature°C1 ... 55
    Nominal pressurePNbar162
    2 special versions on request
  • Technical data
    Nominal diameterDNmm5065801001251502002503300340035003
    Permanent flow rateQ3m³/h40631001601602502501000160016002500
    Minimum flow rateQ1m³/h0.630.6311.61.63.125510161625
    Transitional flow rateQ2m³/h1.021.011.62.562.56581625.625.640
    Overload flow rateQ4m³/h5078.75125200200312.5312.51250200020003125
    Starting flow ratel/h90130160190190150025005000100001500020000
    Flow rate at 0.1 bar pressure lossm³/h2950959595290550800125030006000
    Pressure loss at Q3bar0.190.160.140.280.290.080.020.160.160.030.02
    3 available only without approval
  • Approval
    Nominal diameterDNmm5065801001251502002503300340035003
    MID (DE-13-MI001-PTB005)----
    Dynamic range (Q3/Q1)R463•H1001001001005050100100100100
    Potable waterKTW / W270KTW / W270KTW / W270KTW / W270KTW / W270KTW / W270KTW / W270KTW / W270KTW / W270KTW / W270KTW / W270
    3 available only without approval
    4 other dynamics on request
  • Dimensions
    Nominal diameterDNmm5065801001251502002503300340035003
    Overall lengthLmm200 / 30052002005 / 225 / 3505250 / 3505250300350450500500500
    Flange diameterDmm165185200220250285340405460580715
    Hole circle diameter PN 10 / PN 16Kmm- / 125- / 145160 / 160- / 180- / 210- / 240295 / 295350 / 355400 / 410515 / 525620 / 650
    Number of screwholes PN 10 / PN 16pcs- / 4- / 44 / 8- / 8- / 8- / 88 / 1212 / 1212 / 1216 / 1620 / 20
    Screwhole diameter PN 10 / PN 16D1mm- / 18- / 1818 / 18- / 18- / 18- / 2222 / 2223 / 2723 / 2727 / 3027 / 33
    HeightHmm758389105115135163193230290360
    HeightH1mm123123154154154245245242290311361
    Height to remove measuring insertmm225225275275275475475472520580660
    Meter widthmm155155200220250285340405460580715
    DiameterØ Bmm110110110110110110110110110110110
    Weightkg10.211.2131321.5394775165190300
    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 graphTypical error graph