Meter for measuring heavily fluctuating flow rates.

  • 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 for main meter
  • Single-line 7-digit display for easy meter reading
  • Ideal design of housing and housing cover prevents sedimentation, stagnant water and air pockets
  • No measuring errors in the switch-over range
  • In order to secure a safe switch-over the WESAN WPV A E needs a minimum ingoing pressure of 0.6 bar
  • Electronic - Basic Features
    Ambient classOIML R49 class C / MID E2 + M2
    Protection classIP 68
    Interfaces standardOptical ZVEI
    Interfaces optionalM-Bus, L-Bus, pulse
  • 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
  • Pulse Interface - Specification
    Pulse ratesl/pulseDecadic 1 ... 1000
    Display1 digit after comma
    Pulse value 1l/pulse100 (factory setting)
    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 pressurePNbar161
    Display range0.05 l ... 999,999 m³
    1 versions with different nominal pressure on request (see also special versions)
  • Technical Data
    Nominal diameterDNmm150
    Permanent flow rateQ3m³/h160
    Minimum flow rateQ1l/h100
    Transitional flow rateQ2l/h160
    Overload flow rateQ4m³/h200
    Starting flow ratel/h16
    Permanent flow rate bypass meterQ3m³/h16
    Switch-over flow rate risingl/h4250
    Switch-over flow rate fallingl/h7850
  • Approval
    Nominal diameterDNmm150
    MID (DE-17-MI001-PTB003)
    Dynamic range bypass meter HYDRUS (Q3/Q1)R1600 H
    Potable waterKTW / W270
  • Dimensions
    Nominal diameterDNmm150
    Overall length (DIN 19625)Lmm500 ± 15
    Flange diameterDmm285
    Hole circle diameterKmm240
    Number of screwholespcs8
    Screwhole diameterD1mm22
    Height to remove measuring insertmm475
    DiameterØ Bmm115
    Weight of complete meterkg68
  • Special versions

    - Versions with different nominal pressure on request
    - Special flange holes on request

  • Pressure loss graph / Typical error graph
    Pressure loss graphTypical error graph