Functional Test; Adjustment Of Zero Point / Span - WIKA S-11 Betriebsanleitung

7. Starting, operation
Specifications Oxygen version of model S-10
Pressure ranges bar
Type of pressure
Materials
Wetted parts

Internal transmission fluid 1)
Permissible temperature of
Medium

When designing your plant, take into account that the stated values (e.g.burst pressure,
over pressure safety) apply depending on the material, thread and sealing element used.

Functional test

The output signal must be proportional to the pressure. If not, this might point to a
damage of the diaphragm. In that case refer to chapter 10 „Troubleshooting".
Open pressure connections only after the system is without pressure!

Observe the ambient and working conditions outlined in section 7 „Technical

data".
Warning
Please make sure that the pressure transmitter is only used within the over-

load threshold limit at all times!
When touching the pressure transmitter, keep in mind that the surfaces of
the instrument components might get hot during operation.
Caution
14 WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio S-10, S-11
As of 0 ... 0.1 / 50 INWC
Gauge pressure
316 Ti (up to 40 bar / 600 psi F 1058)
Halocarbon oil
1) Not for model with pressure ranges > 25 bar / 300 psi
-20 ... +60 °C -4 ... +140 °F
GB

8. Adjustment of zero point / span

8. Adjustment of zero point / span
We do not recommend to adjust the span potentiometer. It is used for adjustment ex
factory and should not be adjusted by you unless you have adequate calibration equip-
ment at your disposal (at least three times more accurate than the instrument being
tested).
Make sure wires are not cut or pinche

during disassembly and reassembly of
the connector.
 Remove the female connector. Open
the pressure transmitter by detaching
the clamping nut (see Fig. A ). Carefully
remove the male connector from the
case.
 Adjust the zero point (Z) (see Fig. B ) by
generating the lower limit of the pressure
range.
Adjust the span (S) by generating the

higher limit of the pressure range.
Check the zero point.

If the zero point is incorrect, repeat

procedure as required.
Reassemble the instrument carefully.

Make sure all sealings and o-rings are

not damaged and correctly installed to
assure the rated moisture ingress protec-
tion.
Recommended recalibration cycle: yearly
WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio S-10, S-11
(only for pressure transmitter with clamping nut)
Female
connector
Sealing
Clamping
nut
Male
connector
Sealing
S = Span
Case with
pressure
A
connection
For further information (+49) 9372/132-295
GB
B
Z = Zero
15