Taylor-Wharton EF-1500 User Manual
Page 15
BT-481 REV. B
15
Instrumentation Circuits
The instrumentation consists of a pressure gauge and digital liquid level or differential pressure gauge. The pressure
gauge (PI-1) displays the inner vessel pressure in pounds-per-square-inch and kilopascals. The liquid level gauge (LI-1)
measures the difference in pressure between the top and bottom of the vessel. Product within the vessel creates a higher
pressure at the bottom of the vessel than at the top. Readings on the liquid level gauge are in inches of water. This
reading, when compared to the contents chart attached to the front of the vessel, allows accurate monitoring of the
amount of product within the vessel.
Isolation valves (V-10 and V-8) allow maintenance of the circuit without emptying and depressurizing the vessel. The
equalization valve (V-9) must be opened before the isolation valves are closed. Two ¼” female pipe thread connections
(CN-5 and CN-6) are provided to allow easy connection of telemetry devices or other differential pressure measurement
instruments. The connections are provided plugged.
Figure 7: Instrumentation circuits highlighted in blue.
LI-1
PI-1
V-10
CN-5
CN-6
V-9
V-8