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AMU-II Oxytrace
Maintenance
6.6.2
6.6.3
40
Pre-Test
AMI Inspector Oxygen:
– Check certificate: Certificate not older than one year.
– Check battery: The battery should be completely charged.
Remaining operating time on display minimum 20 hours.
– Sensor is in working condition
On-line instrument:
– Good order and condition: Flow cell free of particles, sensor
surface free of deposits.
– Check message list: Review the message list in menu 1.3
and check for frequently occurring alarms (as for example
flow alarms). If alarms occur frequently remove cause before
starting the procedure.
Connect the Sample Lines
The choice of sampling depends strongly on local conditions on site.
Possible sampling:
via sample point,
via T-fitting or
via piggyback/downstream
Note:
• avoid ingress of air, use screwed fitting,
• sample as near as possible to the process monitor,
• while the measurement is running, wait approx. 10 minutes
until the measured value and the temperature have stabilized.
A-96.150.541 / 111223
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