WESAN WS E

WESAN WS E

ELECTRONIC METER | WOLTMAN

Fully electronic bulk water meter for measuring of fluctuating flows in the utility sector.

  • 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
  • For horizontal installation
  • Outstanding long-term accuracy even under extreme loads
  • Extended measuring range better than metrological class
  • 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 - 100 | Pulse ratesl/pulseDecadic 1 ... 1000
    DN 50 - 100 | Display1 digit after comma
    DN 50 - 100 | Pulse value 1l/pulse1 (factory setting)
    DN 50 - 100 | 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°C0 ... 30
    Temperature safety°C0 ... 50
    Ambient operating temperature°C0 ... 55
    Ambient storage temperature°C0 ... 55
    Mounting positionOnly horizontal
    Nominal pressurePNbar161
    1 see also special versions
  • Technical Data
    Nominal diameterDNmm506580100150
    Permanent flow rateQ3m³/h254063100250
    Minimum flow rateQ1m³/h0.6311,62.56.25
    Transitional flow rateQ2m³/h11.62.52410
    Overload flow rateQ4m³/h31.255078.75125312.5
    Starting flow ratel/h60609090150
    Flow rate at 0.1 bar pressure lossm³/h21225560143
    Pressure loss at Q3bar0.140.340.130.280.31
  • Approval
    Nominal diameterDNmm506580100150
    MID (A 0445/3505/2011)
    Dynamic range (Q3/Q1)R40•H40•H40•H40•H40•H
  • Dimensions
    Nominal diameterDNmm506580100150
    Overall length (DIN 19625)Lmm270300300360430 / 500
    Overall length (DIN ISO 4064)Lmm300300350350500
    Flange diameterDmm165185200220285
    Hole circle diameterKmm125145160180240
    Number of screwholespcs444 / 888
    Screwhole diameterD1mm1818181823
    HeightHmm8597102113141
    HeightH1mm135135180190351
    Height to remove measuring insertmm240240330340620
    DiameterØ Bmm110110110110110
    Meter widthmm173173239239310
    Weightkg14.517.7242879.5
  • 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 body length on request
    - Special pulse values on request

  • Pressure Loss Graph / Typical Error Graph
    Pressure loss graphTypical error graph