Battery Charger-Analyzer for large battery systems (10A-Hr to
(see the new SuperMasterCharger for an advanced version of this product)
- Available as:
MasterCharger LR (Rebuilt, 50A)
MasterCharger LN (New, 50A)
MasterCharger LX (New, 60A)
- The MASTERCharger is a precision
instrument designed to charge and analyze primarily NICKEL-CADMIUM batteries exactly as
recommended by the battery manufacturers (It can also test LEAD-ACID and other types of
- The simple to set controls plus the
condensed operating procedure found on the front panel makes the MASTERCharger
easy to operate CHARGER/ANALYZER, which combined with easy to read CURRENT, VOLTAGE, TIME
and STATUS indicators, makes it also a very simple unit to monitor.
- The MASTERCharger is also designed for
speed, for it can charge two Nickel-Cadmium batteries, (actually, any number of batteries
where the total number of cells is 50 or less), at maximum currents, and it can also
discharge two batteries at reduced currents, or one battery (25 cells or less) at maximum
- The MASTERCharger also provides a
Voltage Control enhancement that allows the Charger-Analyzer, originally designed for
Constant Current operation on Nickel-Cadmium batteries to also be able to handle Lead-Acid
and other type of rechargeable batteries, where the end voltage is a more reliable
indicator of the state of charge (as opposed to Nickel-Cadmium batteries).
- Dependability is another great plus of the
MASTERCharger. 100% SOLID STATE circuitry requires no scheduled maintenance. No relay
contacts to inspect and clean. No high current carrying contacts to arc and burn. A simple
performance verification procedure is all it takes to determine if the instrument requires
re-calibration or repair.
- This instrument is also protected against
certain internal performance deviations and programming errors, plus it is also designed
to sense certain battery abnormalities to protect the instrument and battery from possible
damage. In the event that any malfunction takes place, VISUAL and AUDIBLE indicators will
turn on, alerting the operator and preventing any further operation of the unit.
- The MASTERCharger Battery
Charger/Analyzer System is comprised of the Charger/Analyzer, the Temp-plate, the Battery
Cable and several accessories.
- The specially designed circuitry provides a
performance not achieved by any of the older conventional battery charging methods. The
MASTERCharger will deliver current into a short circuit or a battery or combination of
batteries totaling 50 cells, within ±1% of the programmed value, independent of line
voltage variations (within ± 10% of the nominal line voltage).
- Two 3-1/2 digit LED meters provide the
simultaneous monitoring of voltage and current on the charger and battery under test. The
voltmeter can also be used independently by way of the two external meter lead jacks.
- All new units ("C"
designation) include interfacing for operation with the
BTAS16 for automated measurement of batteries.
Accessory: we recommend the VCM-100 to simplify
the task of testing and calibration the Charger-Analyzer.
1.1 CONTROL: SCR.
1.2 MAXIMUM CURRENT: 50 AMPS.
1.3 MINIMUM INCREMENT: 0.1 AMP.
1.4 ACCURACY and STABILITY of settings: ± 1% of reading, ±0.1 AMP.
FLOAT: The reference voltage is set at the
equivalent of 2.33V/cell (Lead-Acid). The Cell Selector provides the basic reference as
nominal battery voltage, e.g. a 24V battery is entered as 24 on the Cell Selector. Current
reduction is from within 0.5V of the programmed float voltage, with an accuracy of ± 1%
of the programmed float voltage.
PEAK: The reference voltage is set at the
equivalent of 2.45V/cell (Lead-Acid). The Cell Selector provides the basic reference as
nominal battery voltage, e.g. a 24V battery is entered as 24 on the Cell Selector.
transfer within ± 1% of the programmed Peak Voltage.
1.5 MODES: Main and topping for
Constant Current plus Constant Voltage and Peak Voltage.
1.6 TIMER: 1 to 9 hours for MAIN charge time and 1 to 60 hours for TOTAL
time. Time can also be programmed in minutes by selecting the FAST mode in the TIMER
1.7 OVERTEMP PROTECTION: Four thermistors on the TEMP-PLATE measure the
battery temperature, and cut-off the charge when the surface temperature of the TEMP-PLATE
1.8 OVER/UNDER CURRENT PROTECTION: A Monitor circuit continuously
compares the actual charge current with the programmed value and terminates the operation
if they differ by more than 1 AMP.
1.9 OVERVOLTAGE PROTECTION: Programmable, in accordance with the number
of cells selected, at the equivalent of 1.7 volts/cell, with an absolute maximum internal
limit set at 85 VOLTS (CC mode only).
1.10 REVERSE POLARITY PROTECTION: Operation of the unit is inhibited for
reverse voltages greater than 0.5V.
1.11 FUSING: Aircraft type current limiterDISCHARGE
2.1 CONTROL: Transistors, air cooled.
2.2 MAXIMUM CURRENT: 60 AMPS. Total power dissipation must not exceed
1.5KW (1500 watts, the product of battery voltage and battery current).
Discharge current is automatically limited to 30 AMPS
for battery voltages in excess of 32 VOLTS.
2.3 MINIMUM INCREMENT: 0.1 AMP.
2.4 ACCURACY and STABILITY of settings: +-1% of reading, +-0.1AMP.
2.5 MODES: Analysis (automatic cut-off) and deep cycle (full discharge).
2.6 TERMINAL VOLTAGE: Programmable, in accordance with the number of
cells selected, at the equivalent of 1 VOLT/cell.
2.7 OVERHEAT PROTECTION: Two thermistors measure the temperature of the
bank of discharge transistors and cut off the operation if the transistors surface
temperature exceeds 90oC.
2.8 OVER/UNDER CURRENT PROTECTION: A Monitor circuit continuously
compares the actual discharge current with the programmed value and terminates the
operation of the unit if they differ by more than 1 AMP.
2.9 REVERSE POLARITY PROTECTION: Operation of the unit is inhibited for
reverse voltages greater than 0.5 VOLTS.
2.10 FUSING: Aircraft type current limiter.
3.1 TIME BASE: crystal controlled.
a) NORMAL: Timer advances at the rate of one
count per minute (HH:MM).
b) FAST: Timer advances at the rate of one
count per second (MM:SS).
c) TEST: Timer advances at the rate of 60
counts per second (SS:SS/60).
3.3 POWER FAILURE PROTECTION: An internal rechargeable battery maintains
(for several hours) the clock and other vital circuits for a dependable resumption of
operation after a power failure.LINE INPUT VOLTAGES
115V/208V/230/245VAC, 50-60Hz.DIGITAL PANEL METERS
Scale: 2V, 20V and 200V (1.999V, 19.9V and
199.9V) for external measurements and 20V and 200V for internal (battery) measurements.
Scale: 200A (199.9A)PROTECTION
Circuit Breaker for line input, current limiters for
charge and discharge and fuses for electronic protection.AMBIENT
5o C to 35o C (consult factory for extended temperature
Cable to connect the Charger-Analyzer to one or two batteries
TEMP-PLATE: Plate to measure
the temperature of the battery(ies)
SINGLE CELL ADAPTOR: Short cable with clips to charge a single cell or a group
MISC: Fuses and Current Limiter
subject to change without notice