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Teledyne API – Model T700 Dynamic Dilution Calibrator Maintenance
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8.2. MAINTENANCE PROCEDURES
The following procedures are to be performed periodically as part of the standard
maintenance of the T700 calibrator.
8.2.1. AUTO LEAK CHECK
8.2.1.1. Equipment Required
Four (4) 1/4" Pneumatic caps.
One (1) 1/8” Pneumatic Cap
One (1) # 6 hexagonal Driver/Wrench
One (1) Pneumatic “T” fitting
8.2.1.2. Setup Auto Leak Check
To perform a leak-check on the T700 calibrator:
1. Remove the cover from the calibrator.
2. On Instruments with the optional O3 photometer installed, the photometer flow
sensor PCA and pump must be bypassed:
Using a #6 nut driver, remove the hexagonal nut located at the top of the gas
outlet of the photometer (see Figure 8-1).
Usi
ng a #6 nut driver, remove the hexagonal nut located on the fitting on the
back side of the Flow/Pressure sensor board (see Figure 8-1).
Con
nect the end of the line removed from the Sensor PCA in Step 3 to the
Photometer Outlet Fitting.
Photometer Gas
Outlet Fitting
Photometer
Flow Sensor / Pump
Outlet Fitting
Internal Vent
Figure 8-1: Bypassing the Photometer Sensor PCA and Pump
06873B DCN6388