Analytical-industries GPR-1500 A Series Trace PPM Oxygen Analyzer Manuel d'utilisateur télécharger pdf (Page 37)

Advanced Instruments, Inc

No O

reading

accompanied by

electrolyte leakage

suddenly removing the

restriction draws a vacuum

on the sensor

partially opened valves

upstream of the transmitter

when using a pump

downstream of the

transmitter to draw sample

from a process at

atmospheric pressure or

under a slight vacuum.

Placing a vacuum on the

sensor in excess 10” of water

column is strongly

discouraged.

A premature adjustment of

the ZERO OFFSET

potentiometer is a common

problem

Avoid drawing a vacuum on the sensor, a

pressurized sensor may not leak but still

produce negative readings.

From MAIN MENU select DEFAULT ZERO

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Analytical-industries GPR-1500 A Series Trace PPM Oxygen Analyzer Manuel d'utilisateur Page 37