Teledyne 300M Hazardous voltages present - use caution, Flow is zero, Low Flow, High Flow, 10-9

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A

In general, flow problems can be divided into 3 categories:

1.Flow is zero (no flow)

2.Flow is greater than zero, but is too low, and/or unstable

3.Flow is too high

Figure 1-1in this manual provides a schematic diagram of the flow in a Model 300M.

WARNING

Hazardous voltages present - use caution.

Flow is zero:

1.Confirm that the sample pump (sample flow) is operating (turning). If not, check the 115V power to the pump. If the pump does not operate with 115V present at its terminal, replace the pump. Check for plugged pneumatic lines, filters, or orifices.

2.If the pump is over-heated due to the line voltage (exceeding 119 VAC, etc) or high ambient temperature, it will run intermittently causing flow failure.

Low Flow:

1.Check for leaks as described in Section 11.3. Repair and re-check.

2.Check for dirty sample filter or dirty sintered filter.

3.Check for partially plugged pneumatic lines, flow restrictor, or valves.

High Flow:

1.The most common cause of high flow is a leak around the flow restrictor. To correct, remove the flow restrictor and replace O-rings, and re-assemble.

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