NOSHOK 850 Series Electronic Temperature Switch - Manual (Page 5)

The temperature switch is switched on when the supply voltage is applied. There is no on/off
switch. A brief initialization phase occurs when the supply voltage is applied to the switch. The
display and the set point LED illuminate. The measuring range (min- and max. temperature) and
the unit are indicated briefly. The outputs are inactive during this time.
After initialization the switch is in normal operating mode. The temperature appears on the display,
the switching outputs are active and the LED’s indicate the status of the switching outputs.
Briefly pressing button S1 or S2 causes the relevant set point to be displayed.
The status LED’s flash for as long as the set points are being displayed.
Pressing the buttons for longer (press and hold down button until display flashes) causes the
current temperature to be taken over as the set point. The hysteresis remains unchanged. The
switching output(s) can be programmed using the control buttons independently from the present
temperature, per the programming sequence on page 6.
4
Switching On and Off
Programming
The programming sequence must run without interruptions. If delays of about 20 seconds or
more occur, the switch automatically exits programming mode and switches to normal mode.
All previous changes are lost.
Status-LED Switching Output
1 2
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