Teledyne 501 TRS, Operation Manual, Page: 79 / 111

Teledyne API - T102/501 TRS, Addendum to T101 Operation Manual TROUBLESHOOTING and REPAIR
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22. Perform a zero point and span calibration (see the Calibration
Procedures section in the T101 Manual - PN 07266)
11.5.4.
T102 PMT Hardware Calibration (
FACTORY CAL
)
This procedure supersedes the one contained in the Factory Cal (PMT Sensor,
Hardware Calibration) section in the T101 Manual - PN 07266.
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.
1. Set the instrument reporting range to SNGL and 500 ppb (see the
Single Range Mode (SNGL)) section in the T101 Manual - PN 07266)
2. Perform a full zero–point calibration using zero air (see the Calibration
Procedures section in the T101 Manual - PN 07266).
3. Let the instrument stabilize by allowing it to run for one hour.
4. Adjust the UV Lamp. (See Section 11.5.1.1of this addendum)
5. Perform a LAMP CALIBRATION procedure (see the Lamp Calibration
section in the T101 Manual - PN 07266).
6. Locate the Preamp board (see Figure 3-1).
7. Locate the following components on the Preamp board (see Figure
11-4):
•
HVPS coarse adjustment switch (Range 0-9, then A-F)
•
HVPS fine adjustment switch (Range 0-9, then A-F)
• Gain adjustment potentiometer (Full scale is 10 to 12 turns).
07267B DCN6485