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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. 

Summary of Contents for MeterMatch

Page 1: ...ired 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 t...

Page 2: ...le you can have your only calibration points at 25 and 75 and it will still work but won t be quite as accurate outside of those points The basic process of having the gauge read properly from calibration points near each end of the range is fine for most applications but you can be more sophisticated if you wish For example what if your fuel tank is large at the bottom and small at the top In thi...

Page 3: ... Pin 3 To gauge output from MeterMatch Pin 2 Ground ensure that it is well grounded Pin 1 12V switched by ignition requires only a few mA Calibration Once wired it is necessary to calibrate your MeterMatch to tailor it to your sender and gauge As shipped default values are in place for switch positions 1 and 4 The rotary switch Ѳ positions are used as follows 0 Normal operation after calibration 1...

Page 4: ... down continuously 4 Press the Save button to save this calibration point The MeterMatch reads the sender then saves that value along with the gauge signal into its internal memory The LED on MeterMatch will go out momentarily to indicate that the values are being saved then turn back on Repeat these steps but with the sender set to a position for the other end of measurement the rotary switch Ѳ t...

Page 5: ... after you have pressed it twice it will blink twice You can start over at any time by releasing the Save button Number of Up Button Pushes Sender Resistance Simulated Ohms 1 0 2 10 3 33 4 73 5 90 6 180 7 240 5 Release the Save button then use the standard calibration procedure rotary switch Ѳ to which point you are setting Up Dn buttons to make gauge read the desired setting then Save When the Sa...

Page 6: ...nt voltage whether the engine is running or not However if this is not the case when you calibrate your gauge at one voltage for example engine not running battery at 12 5V then start the vehicle and the voltage rises for example to 13 8V the gauge reading might change significantly If you run into this MeterMatch has an automatic voltage correction feature that corrects the reading for different ...

Page 7: ...the sender is at while programming the alarm points it is only interested in what you make the gauge read with the Up Dn buttons As a result ensure that you have calibrated your gauge accurately rotary switch Ѳ positions 1 4 or your alarm will not be accurate either These points can also be erased using the same procedure as normal calibration points Depending on how your gauge works you may find ...

Page 8: ...t to help facilitate repair Risk of damage loss during shipping becomes the customer responsibility once the product is delivered to a common carrier by Tanks Inc MeterMatchTM Specifications Size 1 85 x2 4 x0 93 Weight 1 2 Oz Connections 1x5 screw terminal strip accepting 14 22 AWG wires slots in case sized for 18 AWG 093 Input voltage 7 Vdc 16 Vdc Sender Input Ohmmeter reading of sender input to ...

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