Calibration - Thermo Scientific ThermoFlex Manual De Instrucciones

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.
CALIBRATION calibrates the chiller's temperature (
Each calibration requires a running chiller and a calibrated reference device. Typically, a 2-point calibration is used.
Select which point to calibrate,
Cal.
Press enter. Select
Current
that the value now equals the value just entered.
1. Highlight CALIBRATION.
SETpOINT
SETTINGS
TuNING
CALIBRATION
DIAGNOSTICS
FIRMWARE VERSION
3. Press enter to display:
t1
p2
flow1
For t1, run the chiller to a suitable high-end calibration point. Place a calibrated reference thermometer in the
reservoir. Ensure the fluid temperature is stabilized before performing the calibration. If it is more convenient,
perform the low-end calibration before doing the high-end. Do not pick calibration points that are outside the
safe operating limits of the fluid in your application. For example, with water, 40°C and 5°C are typical high and
low calibration points (90°C and 5°C for high-temperature chillers).
For p2, connect a calibrated reference pressure gauge to the outlet line. Use an external flow control valve to
adjust the pressure to suitable calibration points. Ensure the pressure is stabilized before calibrating.
For flow1, connect a calibrated reference flow meter to the outlet line. Use an external flow control valve to
adjust the flow to suitable calibration points. Ensure the flow is stabilized before calibrating.
To restore a selected sensor to the factory values you have two options, BACkup and RESET. BACkup
restores both the controller board and sensor calibration, RESET only restores the board calibration.
Thermo Scientific
Low High
or . Press enter and enter the value as read by the reference device.
to the right of the value just entered by pressing the down button. Press enter and note
MENu
t1 p2
), pressure ( ) and optional fluid flow (
2. Press enter and highlight CALIBRATE.
CALIBRATE
RESTORE FROM BACkup
RESTORE FROM RESET
4. Highlight the desired sensor then press enter to display:
Low
High
Current
flow1
t1
x.x Cal.
x.x Cal.
x.x
Section 8
) sensors.
ThermoFlex 8-3