Baker Hughes Druck Dry TC 165, Instruction Manual

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Copyright 2013 Baker Hughes Company.
English–Dry TC / Liquid TC Temperature Calibrators | 19
4.4.2 Cooling Down the Calibrator
In order to cool down the calibrator quickly, set the set point temperature to a low temperature,
e.g. room temperature.
For calibrators with only heating elements. During cooling, the built-in fan automatically runs at a
higher speed. The LED OUT 2 indicates the status of the cooling fan control. If LED OUT 2 is lit,
the fan is running at high speed. If LED OUT 2 is not lit, the fan is running at low speed.
For calibrators which can cool below room temperature. LED OUT 2 indicates the status of the
active cooling. If LED OUT 2 is lit, the active cooling is running. If the LED OUT 2 is not lit, the
active cooling is off.
4.4.3 Switching Off
1. Check whether the dry block / micro bath has cooled down to room temperature.
2. Switch off the calibrator via the mains switch.
3. Disconnect the calibrator from mains power if no further testing is required.
4. Unplug the power cord from the wall outlet.
5. Clean the calibrator after use, see Section
8.3.
4.5 Operating Modes
The calibrator has three operating modes:
HOT SURFACE
The calibrator may become very hot when in operation.
Touching hot parts can result in serious injuries.
Never touch the dry block, micro bath, inserts or the DUT at temperatures above
35 °C (95 °F) or below 10 °C (50 °F).
Allow the calibrator to cool before you remove the DUT, change the insert or
switch off the calibrator.
INFORMATION
In the event of mains failure, or if the mains switch is turned
off, or if the mains plug is removed due to an emergency stop, the built-in fan
stops and does not provide cooling. Sufficient thermal decoupling between the
micro bath / dry block and the housing is nonetheless guaranteed.
INFORMATION
Only switch off the calibrator when the dry block / micro bath
has reached room temperature.
When switching off at high temperatures, the calibrator and/or the DUT may be
damaged.
Table 4: Operating Modes
Operating Mode Description
Calibration Mode This is the normal operating mode in which the calibration of DUT is
carried out. See Section 5.2
Set Point Mode Temporary set point temperatures can be entered in this mode. See
Section 5.3.
Main Menu All settings can be modified in this mode, e.g. pre-setting the set point
temperatures or setting the control parameters. See Section 5.4.