Teledyne 300 Leak checking, Using a leak checker, DO NOT EXCEED 15 PSI OF PRESSURE

b.Open the front panel and remove the transparent filter cover and knurled retaining ring.

c.Remove the teflon hold-down O-ring.

d.Remove the old filter element and discard.

e.Install a new filter element in the filter cavity. Be careful with the element, it is fragile.

f.Replace the hold-down O-ring on top of the filter element.

g.Replace the filter top and re-tighten.

h.Leak check.

i.Turn on the Analyzer.

11.3 Leak checking

There are two methods of leak checking:

11.3.1 Using a leak checker

Turn the power off. Disconnect the fittings from the pump and bypass the pump. Connect the leak checker to the sample inlet of the Model 300. Cap the exhaust of the analyzer. Set the leak checker to pressure mode.

CAUTION

DO NOT EXCEED 15 PSI OF PRESSURE.

Leave the checker on until 15 psi is achieved. Close the valve and ensure the pressure remains at 15 psi for at least 5 minutes. If pressure drops more than 1 psi, there is a leak and it must be repaired.

If there is a leak present, pressurize the Model 300 to 15 psi and put soap bubble solution on pneumatic assemblies until the leak is found.

P/N 02163G1 Teledyne API Model 300 CO Analyzer Instruction Manual - Page 102