Testing a FINCH Display with Your Titan Probe
Before You Begin
Review Clearance Requirements for Probe and Transmitter Installations to confirm proper spacing and setup.
Overview
Background
When your tank is empty, you can test the probe and FINCH display to confirm that the system is programmed correctly and responds at different points along the tank.
The FINCH display will typically show 2Lo when there is little or no liquid in the tank. By manually simulating contact with liquid, you can confirm that the display responds with the level or volume programmed for the point being tested.
Testing procedure
Testing the Probe with the FINCH Display
The testing method depends on the type of probe installed.
Coaxial Probe
A coaxial probe has an inner rod inside a thicker outer tube. The holes along the outer tube allow you to reach the inner rod and simulate a product level.
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1
Choose a Hole
Choose a hole at the level you want to test.
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2
Insert the Tool
Insert a conductive metal tool, such as a metal rod or screwdriver, through the hole until it touches the inner rod.
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3
Observe the Display
Observe the FINCH display. It should show the level or volume programmed for that point.
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4
Repeat at Additional Holes
Repeat at additional holes to confirm the display responds at different heights.
Dual Rod Probe
Touch both rods at the same time, then move your fingers up and down the probe to simulate different product levels. The FINCH display should change as the contact point moves along the probe.
ClearView Probe
The ClearView probe is a type of coaxial probe with zero deadband. Its outer tube has slits rather than holes.
Insert a conductive metal tool through a slit until it touches the inner rod. Move to additional slits to simulate different product levels and confirm that the FINCH display responds with the expected level or volume.
Best practices