Greisinger GIR 230 NTC / DIV Flush-mount differential digital regulator GIR 230 NTC / DIV -40.0 to +120.0 °C Assembly di 603296 Data Sheet

Product codes

603296

E33.0.31.6C-02 Manual for connection and operation of the GIR230 Pt1000 / DIF and GIR230 NTC /DIF Page 10 of 14

5.3. Minimum/maximum-alarm

This chapter describes how to configure the device‘s alarm boundaries for min-/max-alarm-monitoring.
This instruction demands that you selected “AL“ as your desired output function.

- Press button 1

(when not already done)

, the device will be displaying “AL.Hi“. (maximum alarm-value)

- Use button 2 and button 3 to set the desired value, the device should turn on its maximum-alarm.

- Press button 1 to validate your selection. The display shows “AL.Hi“ again.

- When pressing button 1 again, the device will be displaying “AL.Lo“. (minimum alarm-value)

- Use button 2 and button 3 to set the desired value, the device should turn on its minimum-alarm

- Press button 1 to validate your selection. The display shows “AL.Lo“ again.

- When pressing button 1 again, the device will be displaying “A.dEL“. (delay of the alarm-function)

- Use button 2 and button 3 to set the desired delay of the alarm-function.

Note: The unit of the value to be set [0 .. 9999] is in seconds. The device will turn on the alarm after

minimum or maximum alarm value was active for the delay-time you have set.

- Press button 1 to validate the delay time. The display shows “A.dEL“ again.

Example: You want to have a temperature alarm-monitoring of a greenhouse. The alarm should start when

the temperature rises above 50°C or falls below 15°C. Therefore your settings will be 50°C for the
maximum alarm-value “AL.HI“ and 15°C for the minimum alarm-value “AL.Lo“.
The alarm will be starting after the temperature rises above 50°C and stays above 50°C for the
entered delay time or after it had been falling below 15°C and stays below 15°C for the entered
delay time.

Please note that the alarm-outputs are inverted! This means, that the output will be active when there is no alarm!

Now you finished configuring your device. Press button 1 to switch over to display the measuring value.

6. Min-/Max-alarm display

If a output function with alarm (out = 2P.AL, 3P.AL or AL) is selected and there is an alarm condition the display
alternates between measuring value and AL.Lo or AL.Hi
Min.-alarm:

approx. all 2 sec. AL.Lo will be shown in the display

Max.-alarm:

approx. all 2 sec. AL.Lo will be shown in the display

7. Displaying the measuring value of input 1 or input 2

The display will normally show the difference value (input 1 – input 2).
Also the measuring value of input 1 and input 2 can be called for a short time.
Calling of meas. value input 1: press button 1 shortly

the device will display“INP.1“ briefly, after that the
meas. value of input 1 is displayed for about 2 sec.

Calling of meas. value input 2: press button 1 shortly 2-times the device will display“INP.2“ briefly, after that the

meas. value of input 2 is displayed for about 2 sec.

8. Min-/max-value storage

The device features a minimum/maximum-value storage. In this storage the highest and lowest measured value
are saved.
Calling of the minimum-value

press button 3 shortly

the device will display “Lo“ briefly, after that
the min-value is displayed for about 2 sec.

Calling of the maximum-value press button 2 shortly

the device will display “Hi“ briefly, after that
the max-value is displayed for about 2 sec.

Erasing of the min/max values press button 2 and 3 for 2 sec.

The device will display “CLr“ briefly, after
that the min/max-values are set to the cur-
rent displayed value.