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Pulse output
configuration
Heat unit
GJ kWh Gcal
0.1 0.1 MJ/pulse 0.01 kWh/pulse 0.1 Mcal/pulse
1 1 MJ/pulse 0.1 kWh/pulse 1 Mcal/pulse
10
10 MJ/pulse
1 kWh/pulse 10 Mcal/pulse
Note: The pulses are output though the CMOS gate. Proper performance requires galvanically separa-
ted interfaces from Apator-Powogaz. Operating the pulse output in the test (fast) mode the ma-
ximum frequency of which is 64 Hz, will significantly increase the battery power consumption. If
this operating mode is continuous, the battery life is reduced to approx. 1 year.
Note: The pulse generation method error in the energy or volume-proportional operating mode is +/- pulse.
When verifying the resolver performance by the total of pulses at the output, choose the verification time
(i.e. the number of pulses) to minimise the method error.
Example: The body is 0.6, the operating mode is volume proportional, and the flow Qp is 600
dm
3
/h. The recommended number of pulses for flow measurement accuracy verification is 500.
Here the method error is 1/10 MPE i.e. 0.2 %, and the test will take approx. 30 seconds.
7.2. Wireless interface
KEY FEATURES
• Easy installation and removal.
• Installing the module does not tamper the
heat meter verification markings.
• Wireless data transmission.
• Plug & play system.
• Remote readability at a range of up to 100 m.
• IP54 protection rating.
Wireless module specifications
Enclosure
Integrated with the heat meter main enclosure by 2 snap
fasteners; electrical connection: 2x5 pin (2.54 mm matrix)
Antenna
Internal, wire type ¼ λ
Power supply
Lithium battery, 3.6 V, 1200 mAh, size ½ AA, installed in
the wireless module enclosure, battery life: ~10 years
Operating temperature range ºC 0 ÷ +55
Operating frequency MHz 868.950
Frequency variation kHz < ± 2.5
Modulation FSK, frequency deviation: ±50 kHz
Transmitter power dBm 10
Receiver sensitivity dBm -105
Mode T1, data transmission period: 120 s
Transmitted registers
serial number, error flags, date, heat energy, main volume,
supply temperature, return temperature, last month heat
energy
Register refresh rate
900 s (the register refresh interval is the time at which
the wireless module polls the heat meter for the register
contents)
The available module versions are for installation in the enclosure and fully enclosed assemblies.
COMPLETE
MODULE ASSEMBLY
View from the
connection pins side
WIRELESS TRANS-
MITTER MODULE
(to be installed
in the enclosure)
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