Glossary UH50 – FOR INTERNAL USE ONLY!
Gyr GmbH
Glossary UH606-101b
Page
26
of
38
There is a set day for the
previous year’s values
and a set day for the
previous month’s values
.
The start of the day (00:00 Uhr) or the end of the day (24:00 Uhr) can be selected as the time of
day. This time applies to both the previous month’s values and previous year’s values.
Note: The standard time used is Central European Time (CET). If daylight-saving is activated,
storage will be performed accordingly.
The
previous year’s values
are stored once a year. The previous values are overwritten.
The
previous month’s values
are stored for the last 18 months. The oldest monthly value is
lost each time a new value is stored. The monthly values can also be read out via the optical
and the 20 mA interface.
Simulation
The following measured values can be simulated by telegram for test purposes:
−
Flowrate
in the range -280% ... +280% (with reference to the nom. flowrate)
−
Flow
in the range -10...+190°C
−
Return
in the range -10...+190°C
Simulation can be activated irrespective of the unit errors F0, F1, F2, F5, F6. A possible error is
suppressed.
Simulation is ended with the relevant telegram “End simulation” or automatically by setting the
calibration seal
. Exception: “Permanent return simulation”
When Split mounting is made, the electronic unit is mounted separately from the flowrate
measuring tube. This is necessary when the meter is used as a cold meter and in cases where
the medium temperature can fall below 10°C or can exceed 90°C.
Standard pulses
see also
tariff pulses
or “
fast pulses
”
Parameter setting for standard pulses
Output mode
Output value
CE
(count energy)
Pulses for quantity of heat
Chan. 1
C2
(count tariff 2)
Pulses for tariff register 2
CV
(count volume)
Pulses for volume
CT
(count tariff 1)
Pulses for tariff register 1
Channel 2
RI
(ready indication)
Pulses for the modes "ready / fault"
Standard pulse significance:
kWh *)
MJ *)
m³
10
15 25
40
2,5 3,5
60
Nom. flowrate in m³/h
10 MJ
0,6
1 kWh
10 kWh
1 m³
0,1 m³
100 MJ
1 MJ
*) depending on the unit for heat display
Pulses for quantity of heat, volume, tariff
register 1, tariff register 2:
Pulse duration
100 ms conducting
Period duration
> 200 ms
Pulses for modes:
“Ready”
pulsed “conduct.”, i.e.
0.1..4 ms pulse dur.,
500 ms period
“Fault” constantly
“non-cond.”
