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7

Install Battery #1 Temperature Sensor

The optional Battery Temperature Sensor (MC-TS-B) allows your Max Charge MC-618 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-or-under-temperature condition by discontinuing charging. The MC-TS-B sensor includes a 20’ cable, a sensing 

attachment lug and positive and negative regulator plug-in connectors. To install the MC-TS-B:

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 are 

connected to the correct pin. 

Connect the RED wire to the positive terminal (#8) and the BLACK wire to the negative 

terminal (#7).

NOTE:

 Do not crush, crimp or bend the portion of the sensing lug covered by heat shrink 

tubing. Doing so can destroy the sensor and is not covered by warranty.

Install WHITE Stator-In And Tach-Out Wires

When an electric tachometer is used, the alternator’s stator output will provide the 

electrical pulse needed to drive the tachometer. The MC-618 has been designed 

to provide regulated tach output when the WHITE stator wire is connected to the 

regulator’s Stator In (#12) terminal and the out feed wire to the electric tachometer is 

connected to the Tach Out terminal (#13) terminal. *Not required for magnetic pick-up 

tachs.

Stator output can also be used to detect alternator failure. See Page 10 

for details.

When the tachometer is connected via the MC-618, the regulator will ensure that the tachometer will not discontinue supplying 

field current when the batteries are fully charged. When connecting the tachometer to the alternator stator output, it will 

be necessary to determine the number of poles in the alternator in order to properly adjust your tachometer. Most Balmar 

alternators feature 12-pole rotors and stators, though, in some cases, the pole count may be 14 or 16. See alternator manual for 

specifics. See your tachometer manual for adjustment instructions.

Install Battery #2 Temperature Sensor

Your Max Charge MC-618 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. 

Connect the temperature sensor to the Bat. #2 Temp. terminals on the regulator. It is essential that the terminals are 

connected to the correct pin. Connect the RED wire to the positive terminal (#15) and the BLACK wire to the negative 

terminal (#14).

 

Install Aux. 1 Lamp

The Max Charge MC-618 regulator’s Aux. #1 (#16) terminal provides the ability to use a visual indicator when the regulator is 

operating under the following conditions: Full field (the alternator is working at full power) and Small Engine Mode (the regulator 

is being controlled at 50% field output). When a described condition is detected, the regulator sends the Aux. #1 terminal from 

neutral to ground. To utilize the Aux. #1 Lamp function:

1. 

Connect a small LED or incandescent lamp (maximum current flow is 500 mA) 

to a positive voltage source.

2. 

Connect the negative terminal on the lamp to the Aux. #1 terminal on the 

regulator.

 

Magnetic

Reed Switch

17
16

15

14

13

12

11

10

9

8

7

6

5

1

2

3

4

To Aux 1

or Dash Lamp

To B

Lamp Connections

CAUTION:

 Reversing the polarity of the battery or alternator 

temperature sensors will damage the sesor and is not 

covered by warranty. Ensure that the connections are correct, 

and never re-connect with the regulator powered.

Summary of Contents for Max Charge MC-618

Page 1: ...1 MC 618 Alternator Regulator Installation Operation Manual SUP 0283 REV C 87 C Open 26 C...

Page 2: ...ng For Battery Type 14 LFP LiFePO4 Recommendations 15 Regulator Programming Flow Chart More details can be found on pages 9 14 16 Programming The Max Field Percentage Belt Load Manager 17 Programming...

Page 3: ...Display 1 MC 618 real time operating data 2 Battery Type selection Basic Programming 3 Adjustment of the Maximum Field Belt Load Manager When a SG2 0300 Bluetooth Gateway is used in conjunction with t...

Page 4: ...ance from alternator distance from inverters transmitters and other sources of RF noise convenient access and readability of the display The regulator wiring harness is 54 inches long providing a thre...

Page 5: ...5 14 13 12 11 10 9 8 7 6 5 1 2 3 4 Ignition Connector 1 Connector 2 17 16 15 14 12 13 10 11 9 7 6 5 8 4 3 2 1 External Regulator Plug Positive Battery Sense Required for Internal Regulator Only Isolat...

Page 6: ...nal Install Alternator Temperature Sensor The optional Alternator Temperature Sensors MC TS A or MC TS A80 allows your MC 618 voltage regulator to monitor your alternator temperatures and limit output...

Page 7: ...ne the number of poles in the alternator in order to properly adjust your tachometer Most Balmar alternators feature 12 pole rotors and stators though in some cases the pole count may be 14 or 16 See...

Page 8: ...egulator without a harness The two fast on connectors shown here to the left are connected to pin 10 and 11 on the regulator Of the two Deutsch style connectors on the right side only one is used in a...

Page 9: ...tch it may be necessary to start the engine before applying test 2 If the engine must be run to accomplish test 2 be sure that the alternator is properly cabled on both positive and negative sides to...

Page 10: ...iod specified by the battery program selected Factory set values are 13 9 volts for 0 3 hours 18 minutes and are adjustable with Av and A1c respectively See page 14 7 Calculated Absorption Charge Targ...

Page 11: ...ation on how to use the Color Display to change MC 618 settings see the SG200 manual NOTE When a battery program is changed all settings under Advanced Settings will be replaced with the new battery p...

Page 12: ...es Yes Yes Yes Yes Yes Standard Flooded Halogen Systems Lithium Yes Yes Yes Yes Yes Carbon Foam AGM Yes Balmar Alternator Models 6 Series Alternators 70A 150A Yes Yes Yes Yes Yes Yes XT AT Series Alte...

Page 13: ...GULATOR TOO HOT OVER 90 C E25 BATTERY TOO COLD BELOW LIMIT E33 BATTERY SENSE DIS CONECTED E41 FIELD VOLTAGE TOO HIGH E42 STATOR VOLTAGE TOO HIGH E51 SMALL ENGINE MODE IS IN OPERATION E52 BELT LOAD MAN...

Page 14: ...asic Programming with Reed Switch Basic Programming with Reed Switch Programming For Battery Type The MC 618 features selectable programs for the following battery technologies Standard Flooded FSb De...

Page 15: ...n the battery or batteries can handle you may use the Max Field Belt Manager feature on the MC 618 to lower the maximum field drive output and thereby lower the maximum alternator output current See p...

Page 16: ...a Spiral FSB Flooded Standard HAL Halogen Lighting LFP LiFeP04 FEL Max Field Belt Load F 1 95 Field F 2 90 Field Max F 3 85 Field F 4 80 Field F 5 75 Field F 6 70 Field F 7 65 Field F 8 60 Field F 9 5...

Page 17: ...ETTING 1 FIELD REDUCTION 5 F 2 INDICATES FEL SETTING 2 FIELD REDUCTION 10 F 3 INDICATES FEL SETTING 3 FIELD REDUCTION 15 F 4 INDICATES FEL SETTING 4 FIELD REDUCTION 20 F 5 INDICATES FEL SETTING 5 FIEL...

Page 18: ...e magnet from the reed switch 2 Wait for the mode indicator to be displayed 3 TOUCH HOLD when the mode indicator is displayed The values for that mode will begin to scroll in the opposite direction Co...

Page 19: ...old Bulk and Absorption Controls the field output threshold required to cycle from Bulk to Absorb and Absorb to Float Factory set at 65 of field output Raising FbA shortens calculated bulk and absorpt...

Page 20: ...supplied and installed audible or visual alert if the following issues were to occur while the regulator is in operation Low Battery Voltage 12 8V Adjustable with ALL See Page 12 High Battery Voltage...

Page 21: ...3 Add appropriate connectors to the switched wires and connect to the positive and negative terminal connections If feature is activated prior to the regulator turning on then the regulator will star...

Page 22: ...lso helpful diagnostic tools Voltage Regulator Testing Set your voltmeter to 12VDC and connect the negative lead to the BLACK ground wire at the regulator as shown at the diagram at right 1 With the i...

Page 23: ...d Testing This can be accomplished by jumping a positive 12VDC current to the field terminal at the rear of the alternator This test eliminates both the regulator and the harness making it easier to i...

Page 24: ...24 NOTES...

Page 25: ...accident abuse neglect exposure to shock electrostatic discharge heat or humidity beyond the product s specifications improper installation inappropriate operation misapplication maintenance or modifi...

Page 26: ...ange This guide was prepared to provide information and does not constitute a contract Balmar reserves the right without prior notice to change delete supplement or otherwise amend at any time the inf...

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