Zenner multidata WR3 - Scope of Delivery; Technical Data Multidata WR3

17
Be sure to read the installation and
operating manual before installing.
This allows you to protect yourself
Scope of delivery
■
Calculator for heat meters multidata WR3
■
Sealing material
■
Wall holder with mounting accessories (in the lower housing)
■
Installation and operating instructions, declaration of conformity
and prevent damage. Check the
contents of the packing before
installation to be complete.
Technical data multidata WR3
Temperature range
°C 0 - 150
Temperature dierence
range
K 3 - 120
Display
LCD multifunctional display, 8-digit plus
special characters
Display unit
Standard: MWh
Optional: kWh, MJ, GJ
Volume pulse generator can
be connected
Reed switch, open collector or active
Input frequency:
max. 1 Hz for passive transmitters,
max. 100 Hz for active transmitters
Temperature sensor
connection
PT500
Max. Sensor cable length
2-wire
m 12.5
Max. sensor cable length
4-wire
m 20
Data interfaces
As standard: Optical data interface,
2 programmable pulse outputs/inputs
optional: M-Bus, RS 485, RS 232
Ambient temperature
°C 5 - 55
Power supply
1
Lithium battery 3.6 V
Optional: Via M-Bus level converter or
plug-in power supply (output: 24 V DC)
Battery lifespan
At least 5 years + 1 year reserve,
optional 10 years + 1 year reserve
Protection class
IP 54 / IP 65
Mechanical/
electromagnetic class
M1 / E1
Measuring accuracy
In accordance with DIN EN 1434-1
Measuring cycle time
Standard: 30 seconds
(10 seconds when operating button is
pressed)
For versions with M-Bus interface: 10 seconds
(
1
) Possibility for battery replacement is depending on the country, please check the relevant
national regulations