Thermo Scientific ThermoFlex10000, Installation, Operation And Maintenance Manual, Page: 174 / 210

Section 8
8-6 ThermoFlex
Thermo Scientific
Process Fluid
Pressure (P1)
Transducer
Calibration
The ThermoFlex was designed to minimize the need for calibration.
However, if calibration is desired or recommended by our Sales, Service
and Customer Support, please use the following procedure.
This procedure requires a running chiller, a calibrated reference pressure
gauge and an external flow control valve.
Connect a calibrated reference pressure gauge to the outlet line. Using an
external flow control valve, increase the pressure to a suitable high-end
calibration point by closing the valve. Ensure the pressure is stabilized.
To enter the Calibration Loop ensure the controller display is displaying the
process fluid temperature, see the diagram on the next page. Press and hold
the and then press the key. The display will indicate
CAL .
Press the key and the controller will display
rtd1
. Press
until the controller displays PrES1 . Press and the controller will
flash between
P1H
and the pressure.
Press to adjust the rate to match the reference pressure gauge.
Press the
key to accept the value.
Decrease the pressure to a suitable low-end calibration point (avoid a zero
pressure). Ensure the pressure is stable.
The controller will flash between
P1L
and the pressure.
Press to
adjust the rate to match the reference pressure gauge.
Press the key and
StorE
is displayed, press to save both
values, press to not save them.
Note
After pressing at the StorE prompt wait several seconds
before proceeding to ensure that a bad calibration message (
Er 16
) does
not appear. Premature use of the keypad after pressing may
cancel the bad calibration error message.

If you have any questions please contact Thermo Fisher Scientific's Sales,
Service
and Customer Support.