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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.  

Early Ford/Mopar Gauges with Mechanical Regulators 

If you are controlling a gauge that is powered by a mechanical voltage regulator in the dash panel 
(such as early Ford and Chrysler products), you can reset the MeterMatch to near-correct values by 

performing the reset operation: (1) power off, (2) setting the rotary switch 

Ѳ

 

  to seven, (3) holding 

down the Save button and finally (4) applying power until the LED blinks.   This will also turn on 

Voltage Correction which is necessary when using a vibrator-type instrument voltage regulator. 

If you have an electronic regulator in your vehicle, Voltage Correction should be turned off.  You can 
set to near-correct values for Ford/Mopar gauges with electronic regulators by resetting the 

MeterMatch exactly as above, but hold both the Save and Up buttons down, rather than just the 

Save button. 

Both Ford/Mopar resets populate switch settings 1, 2, and 4.  2 is for ½ tank   

Voltage Correction 

Most gauges are connected to a voltage regulator in the instrument wiring so that they get a constant 
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 voltages.  To enable this feature: (1) remove power from the MeterMatch, (2) set the rotary 

switch  

Ѳ

 

  to position "0" (normal operating), then (3) press and hold the Up button while applying 

power to the MeterMatch.  Hold it until the LED blinks after power is applied.  MeterMatch will 
remember this setting in future use.  If you wish to remove the voltage correction feature, repeat the 

same process, but hold the Dn button rather than the Up button.  Note that if you change this setting, 

the gauge may need to be recalibrated with the new setting. 

Reading Averaging 

In the default mode, the MeterMatch averages readings to make the needle move more slowly.  This 
is not necessary on older, slower-responding gauges, but can come into play with more modern 
gauges that have less internal dampening.  This feature can be turned on and off with a power-up 

sequence: (1) remove power from the unit, (2) set the rotary switch 

Ѳ

 

  to seven,  (3) press and hold 

the Save and  Dn buttons, and finally (4) reapply power to the unit and wait until the power-up LED 

flashes, indicating that power-up is complete. Each time you do this, it will toggle reading averaging 
between off and on. 

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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