Tuning - Thermo Scientific ThermoFlex Manual De Instrucciones

TUNING

The controller controls temperature using a Proportional-Integral-Derivative (PID) algorithm.
Should your chiller experience temperature control issues, verifying/adjusting the controller's
Verifying/
PID values may correct the condition.
Adjusting the
Note Thermo Fisher recommends that only a qualified technician adjust the PID values.
Controller
Incorrect values will hamper chiller performance.
PID Values
1. From the Main Menu display use the
arrow buttons to highlight TUNING.
SETPOINT
SETTINGS
TUNING
CALIBRATION
DIAGNOSTICS
FIRMWARE VERSION
3. Highlight and change the desired values
as required.
P
I
D
P
I
D
Thermo Scientific
MENU
COOL PID
10.0
0.50
0.00
HEAT PID
5.0
0.10
0.00

2. Press enter and highlight COOL PID or
HEAT PID.
TUNING
COOL PID
HEAT PID
Note HEAT PID only appears on chillers
equipped with a heater.
COOL
P proportional value, % of span (100°C)
Range: 0.0 to 99.9
Factory Preset: ThermoFlex900-5000 10.0
ThermoFlex7500-10000 20.0
I integral value, repeats/minute
Range: 0.00 to 9.99
Factory Preset: ThermoFlex900-10000 0.50
D derivative value, minutes
Range: 0.0 to 9.9
Factory Preset: ThermoFlex900-10000 0.0
HEAT
P proportional value, % of span (100°C)
Range: 0.0 to 99.9
Factory Preset: ThermoFlex1400-10000 5.0
I integral value, repeats/minute
Range: 0.00 to 9.99
Factory Preset: ThermoFlex1400-10000 0.10
D derivative value, minutes
Range: 0.0 to 9.9
Factory Preset: ThermoFlex1400-10000 0.0
Section 7

ThermoFlex 7-15