The Balmar Max Charge MC-614 is the latest generation of smart, multi-stage Balmar Max Charge voltage regulators. Designed to provide precise voltage control for Balmar highoutput 12-volt alternators and other externally regulated P-type alternators, the MC-614 features user selectable programs for the following battery types: Deep cycle flooded, standard flooded, gel, AGM and spiral wound AGM batteries. In addition, the regulator features a universal default program that’s safe for most battery types, as well as a program that’s designed for use in vessels utilizing voltage sensitive halogen equipment. In addition to the user selectable preset programs, the MC-614 features a wealth of advanced programming modes which make it possible to tailor charging to a wide variety of environments. When used in conjunction with optional MC-TS-A and MCTS- B alternator and battery temperature sensors, the MC-614 features the ability to monitor and respond to a range of ambient temperature conditions, including reduction or discontinuation of charging voltages, should a catastrophic over-temperature condition occur at the alternator or the batteries.
When the regulator is properly mounted and the regulator wiring is installed, the MC-614 is ready for pre-flight testing. Before turning on the engine, it is advisable to check voltages at the following terminal connections to ensure that the wiring is correct. Test #1 verifies proper voltage values with the regulator turned off. Test #2 verifies the expected voltages with the regulator turned on. Note: If the regulator’s BROWN ignition wire is receiving it’s switched source of voltage from an oil pressure switch, 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 alternator is properly cabled on both positive and negative sides to the battery being charged. Failure to do so could result in damage to the regulator and alternator. Using your hand-held multi-meter, test the following wiring terminals for voltage:
The MC-614 regulator’s microprocessor controlled charging system uses a sophisticated, multi-stage profile to deliver maximum charging output, while protecting the batteries from overcharging damage. When the regulator is first turned on, the processor performs a quick one-second self diagnostic assessment. Following that diagnostic, the MC-614 initiates a charge program as follows: 1. Start Delay - Factory set at one second. Can be user-adjusted to a maximum of 999 seconds in the regulator’s advanced programming mode. See Advanced Programming section for adjustment instructions. 2. Soft Ramp - Gently increases voltage to bulk preset levels based on battery program selected. 3. Bulk Charge - The most aggressive of the charging stages. Voltage is held at a pre-set level, specified by battery program selected, for a set time period. Factory-set bulk time is 18 minutes. Adjustable in 6-minute increments. 4. Calculated Bulk Charge - Holds voltage at bulk level for six minutes, then calculates battery condition by comparing existing voltage, time at voltage, and field percentage to target values. If values are met, the regulator advances to the next stage. If values are not met, the regulator continues to bulk charge and compares real-time to target values. This will re-occur until all values are met. 5. Ramps down to Absorption voltage. 6. Absorption Charge - Regulator continues to control the alternator’s output voltage for an additional 18 minutes at approximately 2/10’s of a volt below bulk charging voltage. Adjustable in 6-minute increments. 7. Calculated Absorption Charge - Holds voltage at absorption level for six minutes, then calculates battery condition bycomparing existing voltage, time at voltage, and field percentage to target values. If values are met, the regulator advances to the next stage. If values are not met, the regulator extends the absorption charge and compares realtime to target values. This will re-occur until all values are met. 8. Ramp down to Float. 9. Float Charge - Regulator continues to control the alternator’s output voltage for an additional 18 minutes, typically at a volt less than bulk voltage (based on battery program presets). After that initial fixed time period, the regulator can respond to increased charging demand by cycling to absorption voltage. After 12 hours of continuous operation, the regulator will automatically revert to absorption voltage through calculated absorption and back to float charging stage.