User guide

Part 2 Analysis Unit Model 3010MA
86 Teledyne Analytical Instruments
2. Zero (with N
2
gas) the analyzer with no restriction on vent (needle
valve fully open)
3. Span (with O
2
gas) the analyzer with no restriction on vent (needle
valve fully open)
4. Change pressure compensation factor to 0.00
Press the System key
select the ‘PressureAdj’ function
Then press Enter
Verify that the compensation factor is set to 0.00, adjust if
required
Press the Escape key
5. Record the oxygen reading with the span gas flowing, (100% O2)
and needle valve on the vent fully open.
Press the System key
Select the ‘More’ function
On the second System screen, record the A to D pressure counts.
The A to D pressure counts are shown on the second line of the
VFD. The example below would be typical for a 3010M analyzer
with Valve Box compatible software. The first number in the
second line is the paramagnetic sensor voltage output (0.993VDC)
and the second number is the A to D pressure counts (112210).
VerTestSer#Stream
0.993112210More
6. Record the oxygen reading with the span gas flowing, (100% O2)
and needle valve on the vent slightly closed.
While still on the second System screen, slowly begin to close the
needle valve. Observe the A to D pressure counts as they rise, stop
once the counts are approximately 1000 counts over the value you
recorded in step 5 (the increase does not have to be exactly 1000
counts).
Wait for stability, about three to five minutes.
Return to the Analyze screen by pressing the Analyze key, record
the oxygen reading.
7. Compute the pressure compensation factor. See Example 1 shown
below.