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Siemens
Ultrasonic heat and cooling energy meters UH50..
CE2N5324en
Building Technologies
2013-01-14
Tariff register 2
Tariff register 3 (not for T12)
For tariff T7
For tariff T8
For tariff T9
Log functions
In the internal logbook, metrologically relevant events (errors, states, actions) are
stored in chronological order with their time of occurrence. The acquired events are
predefined. Logbook data cannot be deleted.
Each event is stored in a separate 4-level shift register. The overflows are trans-
ferred to a 25-level circulating buffer. This way, at least the last 4 times can be
traced for each event.
In a monthly register, the error states are stored for the current month and the past
18 months (without time stamp).
Serial No.
Description
1
F0 = air in measuring tube
2
F1 = interruption flow temperature sensor
3
F2 = interruption return temperature sensor
4
F3 = error temperature electronics
5
F5 = short-circuit flow temperature sensor
6
F6 = short-circuit return temperature sensor
7
F8 = sensor error > 8 hours
8
F9 = ASIC error
9
Above max. temperature in the flow measuring section
10
Below min. temperature in the flow measuring section
11
Max. flow rate qs exceeded
12
Soiling prewarning
13
Mains voltage off
14
CRC error occurred
15
Adjustment values parameterized
16
F7-(EEPROM) prewarning
17
Reset made
18
Date/time of day parameterized
19
Yearly set day parameterized
20
Monthly set day parameterized
21
Master reset performed
22
All times deleted
23
Missing time deleted
24
Maxima deleted
Readout is performed via the optical interface with the service software.