UH50 Ultrasound Heatmeter
Configuration Instructions
UH 106-101c
Page 8 / 13
Radio module
Radio module;
with internal or
external antenna
Pulse inputs:
Channel 1,
Channel 2
With its integrated antenna, the radio module
permits wireless read-out from a distance of up to
100 meters. For special mounting situations, the
radio module can be supplied as a version with an
external antenna.
The module is programmed via radio telegrams.
With a button, the transmit parameters can be reset
to default values.
Two LEDs indicate the current operating state.
The power supply of the module is drawn from the
heat meter. If the heat meter is operated with a
battery, a 6-year battery of type D (“for all
applications”) is required.
The module contains an additional two pulse
counters to acquire external counting pulses.
The following must be noted concerning the inputs
for the pulse counters:
- Only connect isolated contacts (Reed contact,
no open collector)
- No galvanic isolation of the electronics of the heat
meter
- External power source or grounding not
permissible
Display on LCD
RM
(radio module)
Technical data radio
Frequency 433
MHz
Range
up to 100 meters
(with integrated antenna)
Read-out frequency max. 1 read-out per day
(average)
Technical data pulse counters
Pulse counters:
2 inputs for external pulses
Counter range:
0..99,999,999
Pulse significance:
0.001...999.99
Counter identifier:
8-digit
Min. pulse length:
50 ms
Max. pulse rate:
5 pulse/s when using both
channels
Max. pulse rate:
10 pulse/s when using only
one channel
The radio module reads the data either when data is
requested or only once per day.
The heat meter must be functioning in normal mode.
The data are packed and output in various telegram
types.
Data content
All telegrams are preceded by the time stamp (date
and time) and the property number.
Telegram type:
Content:
“Basic”
Cumulated values and error status
“Previous year”
Cumulated previous year’s values
and error status
“Previous month”
Cumulated previous month’s values
and error status
“Extended”
Current instantaneous values, stored
maximum values and error status
“Pulse and service”
Data of the pulse counter
Multi module
The external multi module extends the heat meter by
another three module slots for 2WR5 modules. That
enables operation with a UH50 module and three
2WR5 modules.
Block diagram multi module
Module #2
e.g. M-bus
Module
*)
Module #1
z.B. Funkmodul
*)
Module #3
e.g. analog
module
*)
Multi
module
Pulse output
Button
Coding switch
LEDs
M-bus
10V / 20 mA
M-bus
Power supply
Radio
*) The module combination is only
an example
Pulse energy
Pulse volume
Pulse operating status
Pulse tariff 1
Pulse input #1
Pulse input #2
Adapter
plate
in meter
Display on LCD
MM
(multi module )
The following modules of type 2WR5 can be used
without restriction:
-
M-bus module
-
Analog module
-
Radio module
If several M-bus modules are used, one module
functions as the master. The addresses of the M-
bus modules can be changed independently via the
M-bus system. If the master address is changed it is
written back to the heat meter.
The bus address of the master can also be changed
via the heat meter.
The multi module has one pulse output each as
standard for energy, volume, operating status and
tariff register 1.
The multi module is configured using the 3 button
and the 2 coding switch.
The operating state is displayed on LEDs, further
LEDs indicate the status of the output pulses.
For further details and a separate description, see
“WZX-MM Multimodule Installation and Service
Instructions”.