Baker Hughes Druck Dry TC 165, Инструкция по эксплуатации

Страница: 26 / 58

Copyright 2013 Baker Hughes Company.
18 | Dry TC / Liquid TC Temperature Calibrators–English
4.4.1 Switching On
1. Turn on the mains switch.
2. The controller is initialized.
Figure 14: Controller Initialization
a. appears in the upper display.
b. The controller software version appears on the lower display.
3. Initialization is completed after approximately 5 seconds.
4. The controller enters into calibration mode, see Section 5.2.
5. The controller automatically adjusts the calibrator from room temperature to the required set
point temperature.
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.