Endress+Hauser OUSAF11, Руководство по эксплуатации

Страница: 16 / 28

Electrical connection OUSAF11
16 Hauser
6.2 Lamp voltage
Sensor version Lamp type Lamp voltage [V]
OUSAF11-xxxxx Incandescent lamp 4.9 ± 0.1
6.3 Ensuring the degree of protection
Only the mechanical and electrical connections which are described in these instructions and
which are necessary for the required, designated use, may be carried out on the device
delivered.
‣
Exercise care when carrying out the work.
Individual types of protection permitted for this product (impermeability (IP), electrical safety,
EMC interference immunity) can no longer be guaranteed if, for example:
• Covers are left off.
• Different power units to the ones supplied are used.
• Cable glands are not sufficiently tightened (must be tightened with 2 Nm for the confirmed
level of IP protection).
• Modules are not fully secured.
• The display is not fully secured (risk of moisture entering due to inadequate sealing).
• Loose or insufficiently tightened cables/cable ends.
• Conductive cable strands are left in the device.
6.4 Post-connection check
Device condition and specifications Notes
Are the sensor, assembly and cable free from damage on the outside? Visual inspection
Electrical connection Notes
Does the supply voltage of the connected transmitter match the data on the
nameplate? Visual inspection
Are the installed cables strain-relieved and not twisted?
Has the cable been routed without loops and cross-overs? Check that it is firmly seated (by
pulling gently)
Are the signal cables connected correctly according to the connection diagram?
Are all cable entries mounted, tightened and leak-tight? For lateral cable entries, make sure
the cables loop downwards to allow
water to drip off.
Are the PE distributor rails grounded (if present)? Grounding at the point of
installation