WESAN WB E

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

Application:

Fully electronic bulk water meter for installation at a transition from a vertical to a horizontal pipe (e.g. in a well).


Features:
  • Calibratable and exchangeable measuring insert
  • Electronic sensor control for recording flow rate
  • Lithium battery, lifetime 12 years
  • Optical ZVEI interface equipped as standard
  • Adjustable reading date for billing
  • Rotatable integrator
  • Single-line 7-digit display for easy meter reading
  • Outstanding long-term accuracy even under extreme loads
  • Measuring range for small flow rates considerably larger than specified for metrological class


Electronic - Basic Features

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

Interfaces - Overview

WESAN WB 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 WB 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 WB E
Temperature range °C 0 ... 30
Temperature safety °C 0 ... 50
Ambient operating temperature °C 0 ... 55
Ambient storage temperature °C 0 ... 55
Nominal pressure PN bar 16*

Technical Data

Nominal diameter DN mm 50 80 100 150 200
Nominal flow rate (DIN ISO 4064) Qn m³/h 15 40 60 150 250
Permissible continuous load (HY) Qn m³/h 25 55 90 200 300
Maximum flow rate (short-term) Qmax m³/h 50 110 180 350 600
Transition flow rate Qt m³/h 1 1.2 1.5 5 20
Minimum flow rate Qmin m³/h 0.2 0.25 0.3 0.8 4
Starting flow rate l/h 60 90 90 150 370
Flow rate at 0.1 bar pressure loss m³/h 25 50 78 250 295

Approval

Nominal diameter DN mm 50 80 100 150 200
National 6.132 / 96.12 6.132 / 96.12 6.132 / 96.12 6.132 / 92.06 6.132 / 92.06
Metrological class B•H B•H B•H B•H B•H

Dimensions

Nominal diameter DN mm 50 80 100 150 200
Overall length (DIN 28537) L mm 150 180 200 250 300
Overall length (DIN 28637) L mm - 165 180 220 260
Flange diameter D mm 165 200 220 300 360
Hole circle diameter K mm 125 160 180 240 295
Number of screwholes pcs 4 8 / 4 8 8 8 / 12
Screwhole diameter D1 mm 18 18 18 23 23
Height H1 mm 124 140 149 219 264
Height to remove measuring insert mm 260 320 330 485 586
Meter width mm 173 222 222 310 352
Diameter Ø B mm 110 110 110 110 110
Weight kg 14.2 26.6 33.3 71.5 130

Special versions

- Versions with different nominal pressure on request

- Special flange holes

- For other media

- For different pulse values

Pressure loss graph / Typical error graph

Pressure loss graph
Pressure loss graph
Typical error graph
Typical error graph
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