Pressure Calibration - Teledyne T360 Operation Manual

Operating Instructions

4.13.7. Pressure Calibration

This calibration must be performed when the pressure of the sample gas is equal to ambient
Before performing the following pressure calibration procedure, disconnect the sample gas pump
and the sample gas-line vent from the sample gas inlet on the instrument's rear panel.
SAMPLE
< TST TST > CAL
SETUP X.X
CFG DAS RNGE PASS CLK
SETUP X.X
COMM VARS
SETUP X.X
8
DIAG
DIAG PCAL
148
A sensor at the exit of the sample chamber continuously measures the pressure of
the sample gas. This data is used to compensate the final CO
calculation for changes in atmospheric pressure and is stored in the CPU's
memory as the test function PRES (also viewable via the front panel).
atmospheric pressure.
To cause the analyzer to measure and record a value for PRES, press.
RANGE = 500.000 PPM
PRIMARY SETUP MENU
MORE
SECONDARY SETUP MENU
DIAG ALRM
ENTER DIAG PASS: 818
1 8
SIGNAL I / O
NEXT
Repeat Pressing NEXT until . .
ACTUAL PRESS : 27.20 IN-HG-A
2 7 .2 0
Adjust these values until the
displayed pressure equals the
pressure measured by the
independent pressure meter.
Teledyne API Model T360/T360M Operation Manual
NOTE
CO2 =X.XXX
SETUP
EXIT
EXIT
ENTR EXIT
ENTR EXIT
.
ENTR accepts the
ENTR EXIT
concentration
2
Exit at
any time
to return
to main
the
SETUP
menu
new value and
returns to the
previous menu
EXIT ignores the
new value and
returns to the
previous menu
07272B DCN6552