Baker Hughes Druck Dry PTC 200, Инструкция по эксплуатации

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22 | PTC Temperature Calibrators–English
4.4.1 Switching On
1. Turn on the mains switch.
2. The fan of the calibrator starts and the Druck logo appears on the screen.
3. The type designation and the current software version are displayed.
4. The main window is displayed and the calibrator is ready for operation.
5. The first entry in the selection list, with its parameters, is displayed as the test task.
4.4.2 Cooling Down the Calibrator
To avoid injuries or material damage, it is necessary to cool down the calibrator.
Use the shutdown icon to cool the calibrator to a safe temperature. See “Safety Temperature
Value” on page 32.
4.4.3 Switching Off
1. Tap the icon until the main window is displayed.
WARNING
The calibrator must be securely connected to protective earth,
otherwise there is a danger to life from electric shock.
Before turning on the power, make sure that the earth connection of the
calibrator is properly connected to the protective earth.
WARNING
After transport, storage or long periods of non-use, moisture can
seep into the heating elements (magnesium oxide).
To dry the heating elements, the calibrator must be slowly warmed up. During
this process, the calibrator has not yet reached the required electrical insulation
for protection class I.
To dry the heating elements, set the calibrator to 120
°C (248 °C) for at least
15 minutes.
INFORMATION
Do not expose the calibrator to high levels of humidity for a
long time. Excessive condensation can occur on the calibrator if a cold unit is
brought into a considerably warmer place.
Before switching on the calibrator, allow it to acclimatise for at least 2
hours at
room temperature.
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.