Pre-Test; Connect The Sample Lines - Swann AMI Hydrogen QED Operator's Manual

AMI Hydrogen QED
Maintenance
6.5.2
6.5.3
Example
42

Pre-test

 Reference instrument: AMI Inspector Hydrogen:
– Check certificate; reference instrument certificate not older
than one year.
– Check battery; Battery of the AMI Inspector Hydrogen
should be completely charged. Remaining operating time
on display minimum 20 hours.
– Sensor is in working condition.
 On-line instrument: Monitor AMI Hydrogen:
– 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

See corresponding chapter in the manual of the process monitor
which shall be checked with a reference instrument.
The choice of sampling depends strongly on local conditions on
site. Possible sampling:
 via sample point,
 via T-fitting or
 via piggyback/downstream
NOTICE:
• avoid ingress of air, use screwed fitting,
• sample as near as possible to the process monitor,
• wait approx. 10 minutes, whilst measurement is running, until
measurement value and temperature are stabilized.
As an example following picture shows the connection of the refer-
ence instrument via T-fitting to the process monitor.
A-96.250.791 / 040219