E32.0.05.6C-06
Manual for connection and operation of the GIR 2000 Pt
page 10 of 12
7. Offset- and slope-adjustment
The offset and slope-adjustment function can be used for compensating the tolerance of the used sensor.
General description and notes to the operating of the menu
By means of
button 1
you can go to the next parameter.
Additionally a given changing in the parameter setting can be con-
firmed by this button and the new value will be saved. Afterwards it
will be changed to the parameter view again
By means of
button 2
or
button 3
you can go from the parame-
ter view to the parameter setting and adjust its value there.
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 devic
e also features a „overflow-function„, when reaching the upper limit of the range, the device switches
to the lower limit, vice versa.
By means of
button 4
a
given changing will be cancelled in the parameter setting. The changing will be
discarded and the former parameter value will be preserved.
In the parameter view button 4 closes the menu.
Please note:
If you don‟t press any button for more than 10 sec. in the parameter setting, the adjustment will be
cancelled, the changing discarded and it will b
e changed to the parameter view. If you don‟t press
any button for more than 60 sec. in the menu, the menu will be automatically closed.
7.1. Menu calling and adjustment
- Turn on the device and wait after it finished its built-in segment test.
- At the same time press the pushbutton on the rear side (button 5) and button 3 for >2 seconds. The de-
vice displays “
OFFS
“ (offset).
- Use button 2 or button 3 for setting the desired zero point offset-value.
The value that had been set will be subtracted from the measured value.
(see below for further information)
- Press button 1
to validate your selection. The display shows “
OFFS
“ again.
- When pressing button 1
again, the device will be displaying “
SCAL
“. (scale = slope)
- Use button 2 or button 3 to select the desired slope-adjustment.
The slope adjustment will be entered in %. The displayed value is calculated according to the following
formula:
Displayed value = (measured value – zero point offset) * (1 + slope adjustment [% / 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 dis
play shows “
SCAL
“ again.
- When pressing button 1
again, the display shows “
OFFS
“ again.
Now you have finished the offset- and slope-adjustment.
- Press now button 4 to exit the offset- and slope-adjustment menu.
Examples for offset- and slope-adjustment:
The device displays the following values (without offset- or slope-adjustment: 2.0°C at 0°C and, 151.7°C at 150°C
Therefore you calculated: zero point: 2.0
slope:
151.7
– 2.0 = 149.7
deviation:
0.3
(= target-slope
– actual-slope = 150.0 - 149.7)
You have to set:
offset =
2.0
(= zero point-deviation)
scale =
0.20
(= deviation / actual-slope = 0.3 / 149.7 = 0.0020 = 0.20% )
ON/SP
SET
min.
OFF/Hy.
1
2
max.
ALARM
Scale
Analog
CAL
Scale
Analog
CAL
ON/SP
SET
min.
OFF/Hy.
1
2
max.
GIR/GIA
ALARM
SET
1
2
3
4
