OPW M2010-EU, Руководство по установке

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6.2 Model 924B Probe Specifications
CAUTION: Special Conditions for Safe Use :
Static electricity can cause fires. To prevent static electricity in the probe, do
not rub or clean the probe with a cloth. Make sure to release static electricity
from the probe in an area away from the hazardous area before it is installed.
These devices have not been approved for use across a boundary wall.
The housing cover at the top of the probe is made of aluminum. To avoid
ignition hazards do not let the head hit or rub against another object.
924B Magnetostrictive Probe Specifications
Power Requirements: Nominal 12+ VDC from I.S. Barrier
Operating Temperature: -40°C to +70°C (-40°F to 158°F)
Maximum Total-Run Wiring
Length*:
305 m (1,000 feet) Belden 88760 or Alpha 55371
152 m (500 feet) Belden88761 (or equivalent)
Level Measurement,
Product:
Level Measurement, Water:
Temperature Res-
olution/Accuracy:
± 0.0127 mm (± 0.0005 inches)
± 0.254 mm (± 0.012 inches)
± 0.1°C / ± 0.5°C
Classifications: Class I, Division 1, Group D
Certifications:
IECEx UL 11.0012X
DEMKO 11 ATEX 1012670X
I.S. Barrier Used: 12V ONLY; OPW P/N: 20-4344 (Green Label)
Multi-drop Restriction**:
924B is the only probe that can be multi-dropped at a maximum of four
(4) probes per channel
Connections: Blue = Power, Brown = Signal, Black and Shield = Ground
NOTE:
*This is the maximum length of wire to be used to connect all probes on one channel.
This length includes the wire from the I.S. barrier to each probe in the string.
Doc. No.: M2010-EU Rev.: 13
Page 45 of 149