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Maintenance Teledyne API – Model T700 Dynamic Dilution Calibrator
230
8.2.1.3. Performing the Auto Leak Check Procedure
To perform an AUTO LEAK CHECK, press:
Test Runs Automatically
At 17% of elapsed time the program
shuts the DILUENT IN and CYL1
port valves. Then measures the total
drop in internal gas pressure (if any)
for the duration of the test.
A drop of ≥ 2 PSIG causes the test
to FAIL.
Run time is approximately
5 minutes
DIAG LEAK LEAK CHECK PASSED 29.8 PSIG
EXIT
DIAG LEAK LEAK CHECK 30.0 PSIG, 17%
EXIT
STANDBY A-CAL=0.000 LPM
<TST TST> GEN STBY SEQ SETUP
Make sure that the T700 is
in standby mode.
SETUP X.X PRIMARY SETUP MENU
GAS SEQ CFG CLK PASS MORE EXIT
SETUP X.X SECONDARY SETUP MENU
COMM FLOW VARS DIAG EXIT
SETUP X.X ENTER PASSWORD
000 ENTREXIT
Toggle these keys to enter
the correct PASSWORD
DIAG SIGNAL I/O
PREV NEXT ENTR EXIT
DIAG AUTO LEAK CHECK
PREV NEXT ENTR EXIT
Continue pressing NEXT until ...
Pressure displayed is the
actual pressure read by the
instruments internal
sensors.
At the beginning of the test
this should equal the
pressure of the Diluent Gas
(Zero Air ) bottle
8.2.1.4. Returning the T700 to Service after Performing an Auto Leak Check
1. Remove all of the caps from the EXHAUST, CAL GAS OUTPUTS (2) and the VENT
port and from the internal vent.
2. On instruments with an optional O3 photometer, reconnect the internal gas lines so
that the Sensor PCA and pump are functional.
3. Remove the tee from the DILUENT IN and CYL 1.
4. Reconnect the ZERO AIR SOURCE to the DILUENT IN.
5. Reconnect Cal Gas bottle to CYL 1 and open the bottles outlet port.
6. Replace the calibrator’s top cover.
7. The calibrator is now ready to be used.
06873B DCN6388