Baker Hughes Druck Dry PTC 200, Инструкция по эксплуатации

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10 | PTC Temperature Calibrators–English
4.1 Operating Conditions
Select a safe installation site for commissioning the calibrator.
Considerations for selecting a safe installation site and calibrator operating position:
•
Only suitable for indoor use, do not use outdoors.
• Operate only in the vertical position on an even surface. The surface must be stable, clean,
and dry.
• If the operational conditions do not conform to the above, the structural safety and the
specified properties of the calibrator cannot be guaranteed.
• At high testing temperatures, it is recommended to use a sufficiently large, fire-resistant,
supporting surface.
• Ensure sufficient clearance around the calibrator. On the front side > 1 m, behind and to the
sides > 0.5 m. Ensure that there is sufficient head clearance and sufficient clear space
above the calibrator.
• Ensure sufficient ventilation.
• Do not operate in the vicinity of flammable materials.
• Do not install in a cupboard or other similar confining location.
• The ventilation openings must not be blocked or covered.
• The calibrator must be installed so that it can be switched off at any time.
4.2 Electrical Connection
Check the following points before you connect the calibrator:
1. Check the specified operating mains supply voltage range for the calibrator. See Section
13.
2. Ensure that the mains voltage range is the same as that specified on the rating plate.
3. Only connect the calibrator to a properly installed and earthed 3-pole socket for mains plugs
with earthing contact.
4. Only use extension cables or adaptor plugs with a protective earth connection.
4.2.1 Electrical Connection Procedure
1. Insert the mains cable into the mains inlet socket of the calibrator.
2. Insert the plug of the mains cable in a suitable mains outlet with earthing contact.
INFORMATION
The plug of the mains connecting cable serves as a
emergency stop device. Ensure that the plug is always easily accessible and
easy to reach. In an emergency, pull the plug so that the calibrator is isolated
from the mains.
RISK OF ELECTRIC SHOCK
Calibrators that have been exposed to high
humidity for long periods have an initial higher than normal earth leakage
current. Ensure that the calibrator is always connected to a protective earth.
Always use a known good mains cable with an appropriate power plug.
Use only a Druck specified mains cable.
Ensure that the mains outlet is adequately rated and has a protective earth
connection.
Before turning on the power, make sure that the calibrator is properly connected
to the protective earth. The protective earth is connected to the calibrator
through the mains plug.