Varec 2500, Installation And Operation Manual

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2500 Automatic Tank Gauge
70 Installation and Operations Manual
Operation Check
Check the operation of the gauge by rotating the gauge check knob on the front of the gauge.
The dial should show the movement of the float when the check knob is rotated.
Caution Do not release the gauge check knob and allow the springs to return the
mechanism
. Over time, this will cause the springs to break and will jam the gauge.
Caution Do not turn the gauge check knob on systems that have no float and that are
directly connected to a floating roof.
Leak Check
Check the gauge head and conduit for signs of leaking, for example, look for cracks or corrosion
that may cause the product to leak. If the gauge head is oil-filled, check for signs to assure that
the gauge head is not leaking oil.
Sediment Check
Remove the NPT fitting on the bottom of the gauge head and check for sediment.
Deformation Check
Check the conduit for deformations that might inhibit the movement of the tape.
Calibration Check
Check the accuracy of the gauge against a hand dip measurement in the tank, and calibrate the
gauge if necessary. Refer to section on page 40 for calibration instructions.
Float and Guide Wires Check
Using a manway or inspection cover for access, check the guide wires and float. The guide
wires should be tight and free of kinks to allow the float to run freely. Check the guide wires
and float for sediment that might inhibit movement.