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CAUTION: Reversing the polarity of the terminal connections on any of the alternator or battery
temperature sensors can result in invalid sensing and potential damage to alternators, regulator
and/or batteries.
Install Battery #2 Temperature Sensor
Your Max Charge MC-624 voltage regulator can accommodate a secondary
battery temperature sensor. Used in conjunction with an optional MC-TS-B
battery temperature sensor, the regulator can monitor temperature at a
secondary battery bank and respond to a battery over-temperature condition
by discontinuing charging.
To install a secondary battery temperature sensor:
1. Connect the temperature sensor to the secondary battery bank following
the directions provided for the primary battery temperature sensor.
2. Plug the positive and negative sensor to the appropriate positive connector; The RED positive sensor wire should
be connected to the #7 terminal pin.
3. The BLACK negative sensor wire should be connected to terminal pin #8. Reconnect the spade to the (#9) pin.
Install Battery #1 Temperature Sensor
The Optional Battery Temperature Sensor (MC-TS-B) allows your Max Charge MC-624 voltage regulator to
monitor your battery bank for changes in battery temperature, adjust charging voltages to compensate for battery
temperature, and respond to a battery over-temperature condition by discontinuing charging. The MC-TS-B sensor
includes a 20-foot cable, a sensing attachment lug and positive and negative regulator plug-in connectors.
1. Connect the sensor lug to the battery negative post closest to the center of the battery bank. Extend sensor
cable to the regulator.
2. Connect the temperature sensor to the Bat. #1 Temp. terminals on the regulator. It is essential that the terminals
match the polarity of the regulator connection pins. Connect the red wire to the positive terminal (#9) and the
black wire to the negative terminal (#10).
Install Dash Lamp
The Max Charge Dash Lamp (#11) terminal provides the ability to activate a
visual or audible indicator when the regulator monitors the following conditions:
Low system voltage, high system voltage, high alternator temperature,
high battery temperature (temperature conditions are only indicated when
appropriate temperature sensors are connected) and no voltage on stator,
indicating that the alternator has failed. When a described condition is
detected, the regulator sends the Dash Lamp terminal from neutral to ground.
To utilize the Dash Lamp function:
1. Connect a small LED or incandescent lamp, or an audible (piezo) alert
(maximum current flow is 500 mA) to a positive voltage source.
2. Connect the negative terminal on the lamp or audible alert to the Dash
Lamp terminal on the regulator.
3. When connected, the lamp should flash at regulator start-up to indicate
active status.
Install BLACK Ground Wire
The BLACK Ground Wire (#12 in diagram at right) are included in the four-wire Ford-style plug on the wiring harness
and are factory installed on regulator packages designated with “H” at the end of the model number. The other end of
the Ground Wire is fitted with a ring terminal connector. In most applications, this wire can be connected directly to the
alternator’s ground terminal post. Both alternators and regulators must be connected to system ground.
Magnetic
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Magnetic
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