USDT 3002
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4.1.1 Indication of collector temperatures
4.1.2 Indication of tank temperatures
4.1.3 Indication of sensor 3 and sensor 4
4.1.4 Indication of other temperatures
4.1.5 Operating hours counter
Displays the current collector temperature.
•
COL : collector temperature (1-collector-system)
COL:
Collector temperature
display range: -40 ... +482 °F
Displays the current tank temperature.
•
TST : tank temperature (1 relay)
• TSTL/U: tank temperature (2 relays)
TST:
Tank temperatures
Display range: -40 ... +482 °F
Displays the current temperature of the corresponding
additional sensor (without control function).
•
S3
: temperature sensor 3
•
S4
: temperature sensor 4
Note:
S3 and S4 are only indicated if the temperature sensors
are connected (shown).
S3, S4:
Sensor temperatures
Display range: -40 ... +482 °F
Displays the current temperature of the connected sensor.
TRF:
other measured
temperatures
Display range: -40 ... +482 °F
h P1, h P2:
Operating hours counter
Display channel
The operating hours counter adds up the solar operating
hours of the respective relay (
h P
). Completed hours are
shown on the display and may be reset back to 0. Select the
operating hours channel (h P). The center button for approx.
2 seconds in order to get back into the RESET-mode of the
counter. The display-symbol is flashing and the operating
hours will be set to 0. Press the center button again to save
the adjustment.
In order to finish the RESET-procedure, the button
must
be pressed in order to confirm.
In order to interrupt the RESET-procedure, no button
should be pressed for about 5 seconds. The controller re-
turns automatically into the indicaton mode.
4.1.6 Measuring Collected Energy
OHQM
:Energy Collection
Measuring
Adjustment range: OFF ... ON
Factory setting: OFF
The unit may be used in conjunction with a flow meter for
energy collection calculations. This option is activated in the
channel
OHQM
.
The parameters of the flowmeter (l/min) must be adjusted
in the channel
FMAX
. Antifreeze type and concentration
of the heat transfer medium are indicated on the channels
MEDT
and
MED%.
FMAX:
Volume flow in l/min
Adjustment range 0 ... 20
in steps of 0,1
Factory setting 6,0
