Performing A Sample Flow Check - Teledyne 400E Instruction Manual

Model 400E Ozone Analyzer
Instruction Manual

9.3.5. Performing a Sample Flow Check

Always use a separate calibrated flow meter capable of measuring flows in the
0 – 1000 cc/min range to measure the gas flow rate though the analyzer.
DO NOT use the built in flow measurement viewable from the Front Panel of
the instrument. This measurement is only for detecting major flow
See Figure 3-2 for sample port location.
1. Turn off power.
2. Attach the Flow Meter to the sample inlet port on the rear panel. Ensure that the
inlet to the Flow Meter is at atmospheric pressure.
3. Turn on instrument power.
4. Sample flow should be 800 cc/min ± 10%.
Low flows indicate blockage somewhere in the pneumatic pathway. High flows
indicate leaks downstream of the Flow Control Assembly.
P/N 04316 Rev: B
interruptions such as clogged or plugged gas lines.
MAINTENANCE SCHEDULE & PROCEDURES
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