Dover OPW SiteSentinel Integra 500 - Appendix B: Existing OPW;EECO Equipment

Doc. #: M1800, Rev. 06
Page 73 of 101
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Appendix B: Existing OPW/EECO
Equipment
Model 924A Probes
CAUTION: CANNOT BE MULTI-DROPPED ON
VSMART.
The Model 924A Probe utilizes magnetostrictive
technology to derive accurate product and water levels. It
is primarily used in underground storage tanks for
inventory and leak detection. Two floats can be fitted to
the probe shaft; the product float sits on top of the product
and the water float (optional) sinks through the product
and sits on top of the water at the bottom of the tank.
Five temperature sensors reside in the probe shaft for
measuring product temperature at different levels in the
tank. They are located at positions of approximately 20%,
40%, 60% and 80% of the tank’s volume. The sensors
feed the data of the temperature of the fuel to the console.
The console software is then able to make the
calculations to produce a net corrected product volume.
924A Probe Specifications
Operating Temperature:
-40°F to 158°F (-40°C to +70°C)
Head Dimensions:
≈ 2.2” (5.6 cm) x 7.5” (19.1 cm)
Required Cable:
6’ (1.8 m), gas/oil-resistant cable
Power Supply:
Must be by provided by OPW's I.S. Barrier
Certifications:
Division I Group D Group IIA
Linearity:
+/- 0.040” (1.01 mm) over entire length
Hysteresis:
+/- 0.004” (0.1 mm)
Temperature Resolution:
+/- 0.1°C, +/- 1°C
I.S. Barrier:
24V; OPW P/N: 4344
Installation:
Requires one (1) I.S. Barrier position per
probe
Model 924A
Probe