JULABO HT30-M1 High Temperature Circulator - Manual (Page 55)

HT30-M1
55
Circulator (T
T
)
ATC Int:
ATC serves to compensate a temperature difference that might occur
between circulator and a defined measuring point in the bath tank
because of physical properties.
Measuring point (T
M
)
Sensors
>ATC Int: -0.80K
ATC Ext: 0.00K
• The difference temperature (∆T = T
M
- T
T
) is determined and stored as
compensating value (example
∆T = -0.8 °C).
• Use the keypad to enter the desired compensating value
(e.g. -0.80) and set with enter .
• The temperature on the measuring point rises to a temperature of
50.0 °C and is indicated on the MULTI-DISPLAY (LED).

Note:
The compensating factor always affects the actual working temperature,
even when set via the interface connection.
ext. Pt100
Circulator (T
T
)
Setp.: 50.00°C
ExtAct: 51.22°C
Power: 100 %
Control: intern
External sensor (T
Pt100
)
Sensors
>ATC Int: -0.80K
ATC Ext: 1.22K
ATC Ext:
serves calibration of an external Pt100 sensor.
• Immerse the Pt100 sensor in the circulator bath tank and allow the
bath temperature to stabilize at 50
°C, for example.
• Read the temperatures of the factory calibrated circulator (T
T
) and the
external Pt100 sensor (T
Pt100
) in their respective displays.
• Calculate the temperature difference and enter and set this difference
value as the ATC external compensating parameter.
(Example:
∆T = T
Pt100
- T
T
= 1.22 °C)
• Use the keypad to enter the desired compensating value
(e.g. 1.22 °C) and set with enter .
Notice:
The ATC function remains active until reset to 00.00 °C.