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MeterMatch
™
Overview
The MeterMatch™ by Tanks, Inc. is for making analog gauges
more accurate, or to allow you to mix and match different gauges
and senders. It can be used with many gauges that have resistive
senders - such as common fuel, oil-pressure and temperature
gauges. In addition, it allows you to have low and/or high set-
points that will trigger a bright, blinking LED indicator to alert if the
gauge exceeds normal values.
Theory of Operation
MeterMatch is wired between your sender (sensor) and your gauge. It reads the resistance of the
sender, then based on the calibration values, works as an electronic resistor to drive your gauge to
the desired reading. It treats the input and output entirely separately, so it doesn't care if the input to
the gauge is scaled differently than the sender, or even if the sender signal is reversed - it can correct
for that. In the graphic above, prior to installation the green lines would be connected together.
MeterMatch interrupts that signal to process it and make corrections. Note that the wire terminals are
physically not arranged in this same order – it is shown this way for clarity.
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Summary of Contents for Tanks MeterMatch
- Page 1 Theory of Operation MeterMatch is wired between your sender (sensor) and your gauge. It reads the resistance of the sender, then based on the calibration values, works as an electronic resistor to drive your gauge to the desired reading.
- Page 2 To calibrate MeterMatch, you first set the sender to a known value. For example, fill your fuel tank. Set the MeterMatch to program mode, then with Up and Dn buttons, make your gauge read what you want for that sender value. When you are happy with that, press the Save button, and the value is remembered in the MeterMatch.
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Page 3: Installation
Installation To install and calibrate your MeterMatch, you will need to expose the circuit by removing the small #1 Phillips-head screw in the bottom center of the enclosure. Take care that the circuit board doesn't touch any metal which could short things out, and when finally installed, make sure it is in a dry spot that doesn't get overly hot. - Page 4 2. Set the rotary switch Ѳ to position "1" (High Calibration Point). The LED in MeterMatch will light 3. Use the Up/Dn buttons to make your gauge read the appropriate setting for the present sender output.
- Page 5 Up/Dn buttons to make gauge read the desired setting, then Save. When the Save button is pressed (and the rotary switch Ѳ is not set to 0), MeterMatch will use the resistance value you just entered, and then reset itself to back normal operation.
- Page 6 Resetting Data in MeterMatch If you would like to reset the MeterMatch back to factory defaults: (1) remove power from the unit, (2) set the rotary switch Ѳ to zero, (3) press and hold the Save button, and finally (4) reapply power to the unit and wait until the power-up LED flashes, indicating that power-up is complete.
- Page 7 If that's the case, simply reverse the calibration (use high for low and vice-versa). If you have more than one MeterMatch installed, you can logic "or" the LED signals so that if any of the alarm signals become true, they will set off a single LED. Simply connect the LED negative (cathode) in parallel to each MeterMatch (Pin 5).
- Page 8 Limited Warranty, Terms and Conditions Tanks, Inc. provides a limited warranty for MeterMatch. If a unit should fail within 180 days from time of shipment from Tanks, Inc., it can be returned for repair or replacement at Tanks, Inc. discretion.