Dover OPW SiteSentinel Integra 100 - Model 924 B Specifications

Doc. #: M1800, Rev. 06
Page 44 of 101
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9.5 Model 924B Probe
The 924B probe comes standard in stainless steel and
can be used in a variety of liquids, including gasoline,
diesel and water.
The 924B Probe wiring* can be multi-dropped with up to
four (4) probes connected to the same I.S. barrier
channel.
Special Conditions for Safe Use:
In order to avoid build-up of static charge, do not rub
with a dry cloth or clean in any manner that would result
in a charge build-up. Discharge outside of hazardous
area before putting into service.
These devices have not been evaluated for use across
a boundary wall.
The upper housing cover in the top of the enclosure is
aluminum. Care must be taken to avoid ignition hazards
due to impact or friction.
9.5.1 Model 924B Specifications
*NOTE: *Maximum Wiring Length is the maximum length of cable to
be used to connect all sensors on an individual channel. The length
includes run of cable from an I.S. Barrier to each sensor board in the
string.
**NOTE: ONLY 924B Probes built after September 1, 2007, (version
7.xx firmware) can be installed in multi-drop applications.
Power
Requirements:
Nominal 12+ VDC from I.S. Barrier
Operating
Temperature:
-40°F to 158°F (-40°C to +70°C)
Maximum Total-Run
Wiring Length*:
1,000’ (305 m) Belden 88760 or Alpha 55371
500’ (152 m) Belden 88761 (or equivalent)
Level Measurement
Product:
Water:
Temp.
Resolution/Accuracy:
+/-0.00005” (+/- 0.0127 cm)
+/-0.04” (+/- 1 mm)
+/- 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
Figure 9-2
Model 924B
Probe