KROHNE OPTITEMP TRA-TCA EN - Manual (Page 32)

4
ELECTRICAL CONNECTIONS
32
OPTITEMP TRA/TCA
www.krohne.com 08/2010 - 4000630501 - MA OPTITEMP TRA/TCA R01 en
Electrical connections
4.1 Safety instructions
4.2 Grounding
The manufacturer's industrial thermometer thermowells are grounded via the process
connection. No additional grounding is required.
4.3 Protection category
The IP protection class of an industrial thermometer depends on the type of connection head.
The following protection classes are available: P 54 (BKK), IP 65 (BA, BUZ-T/S/H/HW, BVA), IP 67
(BGK), IP 68 (AXD).
4.4 Power supply
The only components of an industrial thermometer that must be supplied with power are the
measuring insert and any temperature transmitter used. Please consult the product-specific
handbooks for information regarding the power supply of these components.
DANGER!
All work on the electrical connections may only be carried out with the power disconnected. Take
note of the voltage data on the nameplate!
DANGER!
Observe the national regulations for electrical installations!
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
WARNING!
Observe without fail the local occupational health and safety regulations. Any work done on the
electrical components of the measuring device may only be carried out by properly trained
specialists.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
.book Page 32 Tuesday, August 17, 2010 12:18 PM