TR440
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4
Display and controls
1
Digital display (3 digits)
Display of sensor value
Display of error codes
Display of menu and configuration
mode
2
Right-hand decimal point
Off: The device is in the display
mode
Illuminated: The device is in the
menu mode
Flashes: The device is in the
configuration mode
3, 5 Up key / Down key
(in display mode, normal state)
Change into the menu mode (see Operating instructions Point 8.3)
Press for 2 s:
Displays min/max measurement of the selected sensor
Additionally pressing key set ≥ 2s deletes all min/max values
Press Up and Down ≥ 2s:
EasySimulation, jumps into simulation mode for the sensors 1T
.. 3T (display
8
S1-3
8
)
4
Set/Reset key
(in display mode, normal state)
Press briefly: Displays the next sensor (sensor LED illuminates)
Press for 2 s:
Reset function, deletes a locked alarm
(=> [Delay time Alarm off] must have expired)
Press for 5 s:
Displays the program number
(e.g.
8
PR3
8
)
Press for 8 s:
Displays the measurand
(e.g.
8
°C
8
)
Press for 10 s:
Displays the software version
(e.g.
8
-00
8
)
6
LED (red) error
Illuminated:
Sensor error in one sensor circuit or an internal
device fault has occurred
7
LEDs (yellow) sensors
Illuminated: Displays the sensor value belonging to the LED in the
digital display
Flashes:
Sensor error in the corresponding sensor circuit
8
LEDs (red) alarm
Illuminated:
Alarm (1-4) has occurred
Flashes quickly (1:4):
[Delay time Alarm on] running
Flashes long (4:1):
[Delay time Alarm off] running
Flashes uniformly (1:1):
Ready for reset, reset with key
Press "SET/RESET" ≥ 2s
9
LEDs (yellow) relay state
Illuminated: The relay belonging to the LED is operating
Off:
The relay belonging to the LED is released
