Span Adjustment - WIKA 712.15.100 Manual De Instrucciones

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4. Commissioning, operation

Span adjustment

EN
Turn clockwise:
Turn anticlockwise: Larger measuring range
1. The span adjustment, situated at the 4 o'clock point on the case circumference, is acces-
sible by removing the sealing cap.
2. Pressurise the instrument to the desired nominal pressure.
3. Insert a socket-head screwdriver (SW 3 mm) into the funnel guide, and adjust the pointer
to the end value by turning it clockwise (smaller measuring range) or anti-clockwise (larger
measuring range). The instrument will then be fully adjusted to the required measuring
range.
4. If the instrument is equipped with a model 89x.44 transmitter, then this procedure will also
adjust the output signal to the new measuring range.
5. After completing the adjustment the instrument should be re-sealed with the sealing cap.
Additional process connections
Three additional G ¼ female threads on
the minus media chamber (right measu-
ring cell flange when viewing the instru-
ment from behind), e.g. for connecting a
pressure switch, safety valve or a model
A-10 or IS-3 pressure sensor
Two G ¼ female threads on the plus
media chamber (left measuring cell
flange when viewing the instrument from
behind), e.g. for recalibration
Differential pressure gauge models 712.15.100, 732.15.100, optional for hazardous areas
14
Span adjustment
Socket-head screwdriver
(included in delivery)
Smaller measuring range
Sealing cap for span
adjustment
Mounting holes
M8
Process connections G 1/4
Process connections
G 1/4

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732.15.100

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