Related Manuals for Power Products ALPHA C-20
Summary of Contents for Power Products ALPHA C-20
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Page 1: Battery Charger
ALPHA C-20/25 BATTERY CHARGER OPERATING MANUAL Power Products Inc. • 27 Pamaron Way, Suite E • Novato • CA 94949 Tel: (415) 883-6300 • Fax: (415) 883-6302 www.power-products.com... -
Page 2: Table Of Contents
TABLE OF CONTENTS 1. SYSTEM OVERVIEW ............ 3 SYSTEM OVERVIEW ............. 3 DISPLAYS AND CONTROLS..........3 2. INSTALLATION............. 6 LINE VOLTAGE ..............6 TERMINALS................6 SPACE REQUIREMENTS ............6 3. OPERATING GUIDE............7 CHARGE CHARACTERISTICS..........7 CHARGING METHODS............8 PREPARATION FOR CHARGING ......... 9 VERIFY END VOLTAGE ............ -
Page 3: System Overview
C-25 takes minimal space and can easily be moved to add flexibility to the work environment. The charger height and depth are the same as the Power Products’ discharge tester, Beta D-50, with the same general appearance. Therefore, two adjacent units comprise a charger/discharger, which can service from one to three batteries simultaneously, lead-acid or nickel cadmium. - Page 4 Turns unit on start charge or off DC LINE FUSE DC LINE CONNECTORS Fuse protecting Connects for DC cable DC line leading to battery Figure 1–1. Front view of Alpha C-25 Page 4 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0...
- Page 5 1. SYSTEM OVERVIEW COOLING FANS AC LINE FUSE AC VOLTAGE SELECT SWITCH Selects mains input voltage (115 or 230 volts) AC MAINS CABLE Figure 1–2. Rear view of Alpha C-25 Page 5 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0...
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Page 6: Installation
The Alpha C-25 system occupies 15" x 5 ¾" (381 mm x 146 mm) of tabletop space. Place the unit on a sturdy workbench in a well-ventilated battery servicing area with the battery adjacent to it. Page 6 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0... -
Page 7: Operating Guide
The constant current charge characteristics of a lead-acid cell with respect to cell voltage, ampere-hours input, specific gravity and rate of gassing at constant current can be seen in figure 3-1. Page 7 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0... -
Page 8: Charging Methods
However, it is necessary to ensure that the battery is not charged at a high rate for an excessive period of time. Such overcharging can result in overheating, excessive gassing, and possible damage to the battery. Page 8 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0... -
Page 9: Preparation For Charging
Before starting charging the battery, read the component maintenance manual (CMM) or the operating and maintenance manual (OMM) for the specific battery. Ensure that the charge time and current or voltage from the battery manufacturer are followed. Page 9 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0... -
Page 10: Verify End Voltage
A. SWITCH OFF MAINS POWER Turn off the AC on-off/reset power switch. B. TURN DOWN CHARGE CURRENT Repeatedly turn the Ampere Adjust knob fully counter-clockwise to set charge current to zero. Page 10 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0... -
Page 11: Charge Time
1) Constant potential 14.7 volts; 2) Constant current; or 3) Constant potential 28.5 volts. If two batteries are to be charged simultaneously, they will both be charged using the selected charge mode. Page 11 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0... - Page 12 Turn on the AC on/off power switch. The voltmeter reads the battery terminal voltage, the ammeter reads zero, the Off lamp illuminates and the red LED on the timer is off. Page 12 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0...
- Page 13 The actual charge voltage is determined by the battery, until the constant voltage is reached (14.7 volts, 28.5 volts or 35 volts in constant-current Page 13 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0...
- Page 14 When charging is restarted the timer is reset to zero. It may be necessary to adjust the parameters (current and time) before resuming to charge. Page 14 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0...
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Page 15: Calibration And Maintenance
Current Verification - Connect C-25 to battery and discharge at approx. 20 Amps. Using an external calibrated digital meter (set to millivolt scale), connect to ammeter test jacks and verify panel meter is within approx. 0.3 Amps. Page 15 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0... -
Page 16: Shunt Verification
28.5 volts, adjust the R12 trimpot on the same board. 4.3.2 MODIFYING MAXIMUM VOLTAGE SETTING To modify the maximum voltage limit in constant-current mode adjust the R11 trimpot on PCB BD50PC. Page 16 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0... -
Page 17: Maintenance
Connector and exchange the old fuse (see picture 1-1 in section 1). 4.4.4 CLEANING AGENTS Do not use acetone and other similar cleaning agents on the meters, timer or any plastic part. Page 17 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0... -
Page 18: Troublshooting
Check resistance between + and - terminals with ohmmeter. If short circuit, call Power Products technical service. If trouble cannot be located contact Power Products technical services at (415) 479 - 5047 Page 18 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0... -
Page 19: Specifications
20A/250V, type MDA 1 1/4 x 1/4 DC line fuses Two 35A/32V, type AGC 1 1/4 x 1/4 1) Constant current charging with voltage Modes: limit; and 2) Constant voltage charging with current limit Page 19 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0... -
Page 20: Appendix A - Battery Overview
The nickel-cadmium battery is a rechargeable system using alkaline electrolyte (a 31% aqueous solution potassium hydroxide). Nickel-cadmium batteries, which may be vented or sealed, have overcharge capability, high rate charge acceptance and nearly Page 20 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0... -
Page 21: Definitions
12-volt battery. For example, a 24-volt battery rated at 30.0 ampere-hours should deliver 30.0 amperes for a minimum of 1.0 hours before reaching the 18.0 volts cutoff voltage. This is a one-hour, C -rate discharge. Page 21 ALPHA C-20/25 CHARGER – OPERATING MANUAL V1.0... -
Page 22: Warranty
WARRANTY 1 YEAR WARRANTY POWER PRODUCTS warrants its products to be free from defects in workmanship and material for a one year period from the date of shipment to the distributor, original equipment manufacturer (OEM), or original end user. If any product shall prove to be defective during the warranty period, POWER PRODUCTS will repair or replace such part. -
Page 23: Certification Of Calibration
DATE OF FIRST USE: _____________ Power Products Inc. certifies that the above listed instrument meets or exceeds all published specifications. It has been calibrated using Standard MIL-STD I45208 whose accuracies are traceable to the National Institute of Standards and Technology. - Page 24 115/230 V. NSN: 6130-01-462-6337 6130-21-258-4430 (Canada) Headquarters: Engineering: Power Products Inc. Power Products Inc. 27 Pamaron Way, Suite E 522 East 85th Street Novato, CA 94949 New York, NY 10028...
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