PAC R6000S - Light Leak Testing Procedure

R6000S Operation Manual: Rev. G
PAC L.P., All Rights Reserved, 2015 Page 61 of 92
10. Reinstall the detector assembly.
11. Perform the start-up procedure to confirm proper operation of the new temperature sensor.
12. Recalibrate the instrument.
13. Resume normal operation.
4.3 Gas Leak Testing
In the event a gas leak in the flow system is suspected, the following procedure should be performed.
1. On the furnace module, close the rotometer for pyro oxygen.
2. Plug the sample vent on the back of the furnace module.
3. Connect a 10-psi gas supply to the sample fitting on the control panel and set the sample/calibrate
switch to sample.
4. Place a plug on the detector vent fitting on the back of the detector module.
5. Observe the sample rotometer ball.
a. If the ball drops to zero there are no significant leaks in this section of the system; Go to Step 6.
b. If the ball doesn’t drop to zero after one to two minutes, there is a leak. Check that all fittings are
tight and use a Snoop
®
solution, if necessary, to locate the leak.
6. Remove the gas line from the sample fitting and place plugs on the sample, zero, and span fittings.
7. Set oxygen pressure to 10 psi.
8. Completely open the pyro rotometer in the furnace module, and observe the rotometer ball.
a. If the ball drops to zero, there are no significant leaks in this section of the system; Go to Step 9.
b. If the ball doesn’t drop to zero after one to two minutes, there is a leak. Check that all fittings are
tight, and use a snoop solution, if necessary, to locate the leak.
9. Set sample/calibrate switch to calibrate and observe the pyro rotometer ball.
a. If the ball drops to zero there are no significant leaks in this section of the system; Go to Step 10.
b. If the ball doesn’t drop to zero after one to two minutes, there is a leak. Check that all fittings are
tight, and use a snoop solution, if necessary, to locate the leak.
10. Set the zero/span switch to span (to zero if it had been in span) and observe the pyro rotometer ball.
a. If the ball drops to zero there are no significant leaks in this section of the system; Go to Step 11.
b. If the ball doesn’t drop to zero after one to two minutes, there is a leak. Check that all fittings are
tight, and use a snoop solution, if necessary, to locate the leak.
11. There should be no leaks that could affect the system. Remove all the plugs and reconnect the gas
lines to their proper fittings. Reset the gas flows and resume normal operation.
4.4 Light Leak Testing Procedure
In the event a light leak is suspected, the following steps should be taken to isolate and repair the light
leak.
1. Do NOT turn the main power switch to the OFF position.