ThermoFlex-Manual.pdf - 第109页
Section 8 ThermoFlex 8-7 Thermo Scientific xx.x xx.x xx xx P1 H P1 L P1 H P1 L xx.x C mode rtd1 PrES1 Flo r rtd A in Aout1 CAL enter enter enter enter enter enter StorE mode If you ha ve any questions please contact Ther …
Section 8
8-6 ThermoFlex
Thermo Scientific
Process Fluid
Pressure (P1)
Transducer
Calibration
The ThermoFlex has been 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 ow control valve.
Connect a calibrated reference pressure gauge to the outlet line. Using an
external ow 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 uid 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
ash between P1H and the pressure.
Use 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 ash between P1L and the pressure. Use 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 the button 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.
Section 8
ThermoFlex 8-7
Thermo Scientific
xx.x
xx.x
xx
xx
P1 H
P1 L
P1 H
P1 L
xx.x C
mode
rtd1
PrES1
Flo
r rtd
A in
Aout1
CAL
enter
enter
enter
enter
enter
enter
StorE
mode
If you have any questions please contact Thermo Fisher Scientic's Sales,
Service and Customer Support.
Figure 8-4 Pressure (P1) Calibration
indicates the controller display is alternating
between the two displays.
indicates press and hold.
Shaded displays only appear on
chillers equipped with that option.
Save calibration
Do not save calibration
Section 8
8-8 ThermoFlex
Thermo Scientific
Optional Process Fluid
Flow Transducer (FLo)
Calibration
The ThermoFlex has been 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 owmeter
and an external ow control valve.
Connect a calibrated reference owmeter to the outlet line. Using an
external ow control valve, increase the ow to a suitable high-end
calibration point. Ensure the ow is stabilized.
To enter the Calibration Loop ensure the controller display is displaying the
process uid 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 FLo. Press and the controller will ash
between HiFLo and the ow rate.
Use to adjust the rate to match the reference owmeter.
Press the key to accept the value.
Decrease the ow to a suitable low-end calibration point (avoid a zero ow
rate). Ensure the ow is stable.
The controller will ash between LoFLo and the ow rate. Use to
adjust the rate to match the reference owmeter.
Press the key and StorE is displayed, press to save both
values, press to not save them.
Note After pressing the button 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.