Troubleshooting and Service
Teledyne API - T100U Manual, Addendum to T100 Manual P/N 06807
32
19. Replace the sensor assembly into the chassis and fasten with four screws and
washers.
20. Reconnect all electrical and pneumatic connections, leak check the system and
power up the analyzer.
•
Verify the basic operation of the analyzer using the ETEST and OTEST features
(see Section 5.9.4 & 5.9.5 of the T100 Manual) or by measuring calibrated zero
and span gases.
21. Perform a PMT Hardware calibration (see Section 8.3.4 of this addendum).
22. Perform a zero point and span calibration (See Section 9 of the T100 Manual - P/N
06807).
8.3.4
T100U PMT HARDWARE CALIBRATION (
FACTORY CAL
)
This procedure supersedes the one contained in the T100 Manual.
The sensor module hardware calibration adjusts the slope of the PMT output when the
Instruments slope and offset values are outside of the acceptable range and all other
more obvious causes for this problem have been eliminated. Because the PMT HV is
remotely controlled and there is no PMT preamp gain adjust, this procedure is done
automatically through the analyzer software.
1. Set the instrument reporting range to
SNGL
& 500 ppb
(see Section 5.4.3 of the
T100 Manual)
2. Perform a full zero–point calibration using zero air (see Section 9 of the T100
Manual).
3. Let the instrument stabilize by allowing it to run for one hour.
4. Adjust the UV Lamp. (See Section 8.3.1.1 of this addendum)
5. Perform a
LAMP CALIBRATION
procedure (see Section 5.9.6 of the T100
Manual).
6. Feed 400 ppb span gas into the analyzer.
7. Wait approximately 30-60 minutes (or until the stability reads
≤ 0.1 ppb), then under
the DIAG menu select PMT CALIBRATION.
8. Either press
ENTR
if you are using 400 ppb or change the concentration value to
what is appropriate and then press
ENTR
.
9. Select the range that you wish to setup (low or high).
10. Wait two to three minutes until you get a message that indicates the HV has been
adjusted successfully.
I
MPORTANT
I
MPACT ON
R
EADINGS OR
D
ATA
If a reporting range other than 500 ppb is used in this procedure:
Use a span gas equal to 80% of the reporting range and adjust the PMT to
a target NORM PMT value of twice the ppb value of the span gas.
EXAMPLE - If the reporting range is 800 ppb then set the target
concentration to 640 ppb for this procedure.
11. Wait until the
STABIL
value is
≤ 0.1 ppb.
06840B DCN 6201
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