WIKA SA-11 Manual De Instrucciones página 20

7. Setting of zero point and span
7.2 Adjusting the zero point (figure B)
1. Connect the instrument connector (3) to the supply voltage and a display unit (e.g. ammeter, voltmeter) according to
the pin assignment.
EN
2. Go to the start of the measuring range.
3. Using potentiometer "Z", adjust the minimum output signal (e.g. 4 mA)
7.3 Adjusting the span (figure B)
1. Connect the instrument connector (3) to the supply voltage and a display unit (e.g. ammeter, voltmeter) according to
the pin assignment.
2. Drive pressure to the end of the measuring range.
3. Using potentiometer "S", adjust the maximum output signal (e.g. 20 mA)
4. Check the zero point and if there is any deviation, re-adjust it.
5. Repeat the procedure until the zero point and the span are set correctly.
B
Clamping nut
S = span
Z = zero point
20
Field case
WIKA operating instructions pressure transmitter, model SA-11