AMI Analyzer Manual
Short-form Installation Procedure
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8
Short-form Installation Procedure
1.
Mount analyzer at a convenient eye level.
2.
Deal with any potential condensation or liquid contamination issues.
3.
Connect the sample line to the sample inlet port with ¼” tubing, either metal or a high quality plastic
line. Don’t use silicone tubing!.
4.
Pressurize the sample line to between 1psig and
1
0psig).
5.
Leak check every fitting and weld from the analyzer inlet to the sample tap.
6.
Remove the pressure source from the sample line.
7.
Connect vent line to outside or a suitable purge system, or back into the source if appropriate.
8.
If using a span gas, connect it to the span port on the back of the analyzer. Include a bypass flow
meter! See step 26 below.
9.
Connect power, relay contacts, analog output and RS485 if desired. If using conduit, run the power
and alarms in one conduit, and the analog output and RS485 in the other.
10.
Turn on the analyzer with the switch on the power entry module on the back panel.
11.
Adjust the sample flow to approximately 1 SCFH with the Flow control valve.
12.
Allow the sample gas to purge the unit for a few minutes. Make sure the cell cap is in place.
13.
If you are not using the advanced features, set up the alarms and the output range from the front
panel of the analyzer.
14.
Optional:
a.
Connect the laptop, run the User Interface version III and verify all alarm, output and
security settings.
b.
Set the analyzer clock time, and click on “Clear Data Log”.
c.
Verify the output calibration .
i.
Connect the analog output terminals to an appropriate measuring device – preferably the
monitoring device you are going to be using with this analyzer.
ii.
Arrange that you can readily see the reading given by this device.
iii.
On the AMI User Interface, check the “Zero” check box under SETUP in the ANALYZER
SETUP section.
iv.
Observe the response of the monitoring device, and adjust the number in the Zero box
until
the monitoring device shows what it considers to be zero (which should correspond
with
4mA).
v.
Check the box marked “Full Scale” in the SETUP section, and adjust the number in the box
next to it until the monitoring device shows full scale. This corresponds to 20mA.
vi.
Check the “Mid Range” box and verify that the monitoring device shows mid scale.
