E33.0.31.6C-02
Manual for connection and operation of the GIR230 Pt1000 / DIF and GIR230 NTC /DIF
Page 11 of 14
9. Offset- and slope-adjustment
The offset and slope-adjustment function can be used for compensating the tolerance of the used probes.
Please note:
The settings of the offset- / slope-adjustment will be cancelled, when no button was pressed
for more than 60 sec. Changes you may have made already won‘t be saved and will be lost!
Hint:
The buttons 2 and 3 are featured with a ‘roll-function‘. When pressing the button once the value will be raised
(button 2) by one or lowered (button 3) by one. When holding the button pressed for longer than 1 sec. the
value starts counting up or down, the counting speed will be raised after a short period of time.
The device also features a ‘overflow-function‘, when reaching the upper limit the device switches to the lower
limit, vice versa.
- Turn on the device and wait after it finished its built-in segment test.
- Press button 3 > 2 sec.
The device will be displaying “
OFS.1
“ (offset of input 1).
- Use button 2 and button 3 for setting the desired zero point offset-value.
The input of the offset will be in digits.
The value that had been set will be subtracted from the measured value of input 1.
- Press button 1 to validate your selection. The display shows “
OFS.1
“ again.
- When pressing button 1 again, the device will be displaying “
SCA.1
“. (scale 1 = slope of input 1)
- Use button 2 and button 3 to select the desired slope-adjustment.
The slope adjustment will be entered in %. The value displayed can be calculated like this:
Displayed value 1 = (measured value input 1 – zero point offset 1) * (1 + slope adjustment 1 [% / 100]).
Example: The setting is 2.00 => the slope has risen 2.00% => slope = 102%.
When measuring a value of 1000 (without slope-adjustment) the device would display 1020 (with slope
adjustment of 102%)
- Press button 1 to validate the selection of the slope-adjustment. The display shows “
SCA.1
“ again.
- When pressing button 1 again, the device will be displaying “
OFS.2
“. (offset of input 2)
- Use button 2 and button 3 for setting the desired zero point offset-value.
The input of the offset will be in digits.
The value that had been set will be subtracted from the measured value of input 2.
- Press button 1 to validate your selection. The display shows “
OFS.2
“ again.
- When pressing button 1 again, the device will be displaying “
SCA.2
“. (scale 2 = slope of input 2)
- Use button 2 and button 3 to select the desired slope-adjustment.
The slope adjustment will be entered in %. The value displayed can be calculated like this:
Displayed value 2 = (measured value input 2 – zero point offset 2) * (1 + slope adjustment 2 [% / 100]).
Example: The setting is 2.00 => the slope has risen 2.00% => slope = 102%.
When measuring a value of 1000 (without slope-adjustment) the device would display 1020 (with slope
adjustment of 102%)
- Press button 1 to validate the selection of the slope-adjustment. The display shows “
SCA.2
“ again.
Now you finished configuring the device’s offset and slope adjustment. Press button 1 to switch over to dis-
play the measuring value.
Example for offset- and slope-adjustment:
Example: Connecting a temperature probe (offset deviation depending on using long wires between probe and device)
The device displays the following values (without offset- or slope-adjustment): at 0°C = 2°C, at 100°C = 102°C
Therefore you calculated: zero point: 2
slope:
102 – 2 = 100 (=>deviation = 0)
You have to set:
offset =
2
(= zero point deviation)
scale
=
0.00
Button 1 Button 2 Button 3
