GE Sievers Innovox - Page 232

GE Analytical Instruments ©2016 232 of 270 DLM 68100-09 EN Rev. A
Chapter 9: Troubleshooting
To perform the (Check 3) Reactor Bypass Leak Check
This test checks for leaks in the same area as the Reactor Inlet Valve Leak Check and also checks for leaks in
valve V5-R, V7-R and pump P1-R. This flow path is highlighted in Figure 103
.
1. Ensure that the NDIR is plugged, as described in the Before You Begin section.
2. Press the Reactor Bypass button to start the test. The Analyzer closes the following valves: V1-R, V3-R,
V4-R, V5-R, V7-R and V7-SH. The Analyzer opens valves V2-R and V6-R.
The Gas Control Module pressurizes the lines for 24 sec., and then valve V1-GD closes to trap the
pressure in the area being tested. The system holds for an additional 15 sec. If a major leak is detected
at this time, an “Analyzer failed to pressurize” warning appears and the test will end. During this 39-sec.
pressurization period, the timer remains at 00:00 and the analyzer displays “Pressurizing . . .” under the
timer.
3. When the system passes pressurization, the leak check begins, the timer starts, and "Testing . . ."
appears under the timer. The test lasts for 60 sec. The test passes if the drop in pressure is <= 2.0 psi.
4. If the test fails, but the Analyzer passed the Gas Manifold and Reactor Inlet Leak Checks, then check the
gas connections on V5-R and the connections between V5-R and V6-R, V7-R and pump P1-R. If all of
those connections are correct, the seal in V5-R may need to be replaced due to leaking O-rings.
5. To continue the series of gas leak checks, leave the plug on the NDIR end cap outlet gas line and
proceed to the next section, “
To perform the (Check 4) Reactor Leak Check.” Otherwise, remove the plug
for normal operation.