Optional Equipment
Internal Permeation Span Source
9-4
Model 43i Trace Level-Enhanced Instruction Manual
Thermo Fisher Scientific
5.
Go to the Factory Cal Gas Therm menu from the Perm Oven Settings
menu in the Service menu. Select
Low Point
, enter the exact value of
the resistor and press
to calibrate the low resistance point.
6.
Press
to return to the Factory Cal Gas Therm menu.
7.
Connect a resistance of approximately 5 K
Ω
across pins 1 and 2 of
POJ1.
8.
Go to the High Point screen, enter the exact value of the resistor and
press
to calibrate the high resistance point.
9.
Press
to return to the Factory Cal Gas Therm menu.
10.
Remove resistor from POJ1 and re-attach the gas thermistor.
11.
Connect a resistance of approximately 3.8 K
Ω
across pins 3 and 4 of
POJ3.
12.
Go to the Factory Cal Oven Therm menu from the Perm Oven
Settings menu in the Service menu. Select
Low Point
, enter the exact
value of the resistor and press
to calibrate the low resistance
point.
13.
Press
to return to the Factory Cal Oven Therm menu.
14.
Connect a resistance of approximately 5 K
Ω
across pins 3 and 4 of
POJ3.
15.
Go to the High Point screen, enter the exact value of the resistor and
press
to calibrate the high resistance point.
16.
Press
to return to the Factory Cal Oven Therm menu.
17.
Remove resistor from POJ3 and re-attach the permeation oven.
18.
Perform a thermistor calibration using the “Permeation Tube Oven
Calibration” procedure that follows.
