NOTE: It is not possible to calibrate or verify the filter
temperature of NCAT furnaces.
NOTE: To verify or calibrate chamber temperature, you
will need an N.I.S.T. traceable digital pyrometer
(Barnstead International part number = PM20700) & an
N.I.S.T. 10” Type K thermocouple probe (Barnstead
International part number TC405X2). These can be cali-
brated to N.I.S.T. standards and shipped with a certifica-
tion of calibration (Barnstead International part number =
C5000) dated for 1 year. Calibration of the two test
pieces of equipment will need to be performed every year.
Contact Barnstead International for more details at
800-553-0039
NOTE: Chamber temperature calibration should only be
performed in the IDLE mode. Attempting calibration in
the TEST mode will produce inaccurate results primarily
because the exhaust fan is activated in the TEST mode,
pulling ambient air (approximately 10CFM) through the
chamber.
Chamber Temperature Calibration
Procedure
PLEASE READ ENTIRE CALIBRATION PROCEDURE
BEFORE PROCEEDING.
1.
Power the NCAT on while holding the #5 key in
(Hidden Key #5 routine). When the unit beeps,
you may release the #5 key. The Hidden Key
#5 routine will allow you change the filter set
point temperature. Key in 500°C for the filter set
point.
2.
Cycle the power to the NCAT unit off and back
on to exit the hidden key #5 routine and return
to idle mode.
3.
Set the chamber temperature to 500°C.
4.
Allow the unit to heat to the chamber/filter set
point (approximately 2 hours) and stabilize for
an additional 2 hours before proceeding.
5.
Insert 10” Type K probe (B/I part number
TC405X4) through the temperature calibration
port on the back of the unit.
113
M
AINTENANCE
Summary of Contents for Thermolyne 859 Series
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