E32.0.93.6C-02 Manual for connection and operation of the JDI-22 page 7 of 10
5. 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
and
3
you can go from the parameter 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 device 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 dis-
carded 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 be 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.
5.1. 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 input of the offset will be in digit or °C.
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 display 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 102.0°C at 100°C
Therefore you calculated: zero point: 2.0
slope:
102.0 – 2.0 = 100.0 (deviation = 0)
You have to set:
offset =
2.0
(= zero point-deviation)
scale
=
0.00
AN/SP
EINSTELLEN
min.
AUS/Hy.
ALARM
1
2
max.
BEREICH
ANALOG
KALIBRIEREN
button 1 button 2 button 3 button 4
