WESAN WS E

Electronic Meter | Woltman
WESAN WS E
water Water » Woltman |
| Datasheet

Application:

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


Features:
  • 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

WESAN WS E
Ambient class OIML R49 class C / MID E2 + M1
Protection class IP 54 or IP 68
Interfaces standard Optical ZVEI
Interfaces optional* M-Bus, L-Bus, pulse

Display

WESAN WS E
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

WESAN WS E
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

WESAN WS E
Operating voltage UN VDC 3.0 (lithium battery)
Battery lifetime Up to 12 years
Nominal power PN μW 30

Interfaces - Overview

WESAN WS E
Optical ZVEI interface for communication, M-Bus protocol
M-Bus According to EN 1434-3. Data reading and parametriziation 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

WESAN WS E
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; one forward and one backward pulse; pulse and direction signal

General

WESAN WS E
Temperature range °C 0 ... 30
Temperature safety °C 0 ... 50
Ambient operating temperature °C 0 ... 55
Ambient storage temperature °C 0 ... 55
Mounting position Only horizontal
Nominal pressure PN bar 16*

Technical Data

Nominal diameter DN mm 50 65 80 100 150
Permanent flow rate Q3 m³/h 25 40 63 100 250
Minimum flow rate Q1 m³/h 0.63 1 1,6 2.5 6.25
Transitional flow rate Q2 m³/h 1 1.6 2.52 4 10
Overload flow rate Q4 m³/h 31.25 50 78.75 125 312.5
Nominal flow rate (DIN ISO 4064) Qn m³/h 15 25 40 60 150
Minimum flow rate Qmin m³/h 0.2 0.2 0.25 0.3 0.8
Transition flow rate Qt m³/h 1 1.2 1.5 1.5 5
Maximum flow rate (short-term) Qmax m³/h 50 50 110 180 350
Starting flow rate l/h 60 60 90 90 150
Flow rate at 0.1 bar pressure loss m³/h 19 21 42 70 160
Pressure loss at Q3 bar 0.4 0.4 0.4 0.25 0.25

Approval

Nominal diameter DN mm 50 65 80 100 150
National 6.132 / 96.12 6.132 / 96.12 6.132 / 96.12 6.132 / 96.12 6.132 / 92.06
Metrological class B•H B•H B•H B•H B•H
MID (A 0445/3505/2011)
Dynamic range (Q3/Q1) R 40•H 40•H 40•H 40•H 40•H

Dimensions

Nominal diameter DN mm 50 65 80 100 150
Overall length (DIN 19625) L mm 270 300 300 360 430 / 500
Overall length (DIN ISO 4064) L mm 300 300 350 350 500
Flange diameter D mm 165 185 200 220 285
Hole circle diameter K mm 125 145 160 180 240
Number of screwholes pcs 4 4 4 / 8 8 8
Screwhole diameter D1 mm 18 18 18 18 23
Height H mm 85 97 102 113 141
Height H1 mm 135 135 180 190 351
Height to remove measuring insert mm 240 240 330 340 620
Diameter Ø B mm 110 110 110 110 110
Meter width mm 173 173 239 239 310
Weight kg 14.5 17.7 24 28 79.5

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 graph
Pressure loss graph
Typical error graph
Typical error graph
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