WIKA D-10-7 Betriebsanleitung Seite 22

6. Commissioning, operation
Zero adjustment, example 2:
A pressure transmitter with a measuring range of -1 ... +2.5 bar has a zero offset of -10 mbar, then one
would correct:
GB
Pressure range -1 ... +2.5 bar
Display value 10 mbar too low
Correction value = -
Correction value = -
Span correction
Output data
0x22 XX
0x24 HI
The respective correction value can be calculated as follows:
Correction value = -
Correction value: Digit value which is programmed into the instrument via service 0x24.
Span offset: Set span - actual span in bar
Span: Set span MBE - MBA in bar
The changes only take effect after a reset.
22
Span: 3.5 bar
Offset: -0.010 bar
Offset
x 50,000
Span
-0.010 bar
x 50,000
3.5 bar
Input data
XX 0x22
LO 0x24
Span offset
x 50,000
Span
WIKA operating instructions pressure transmitter model D-1x-7
Correction value = +143

HI LO
HI LO
0x008F
Output data
0x23 0x00
Explanation
Read span correction
Write span correction
0x8F