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USERS MANUAL / GEBRUIKERSHANDLEIDING
BETRIEBSANLEITUNG / MANUEL UTILISATEURS
ALPHA ALTERNATOR
12/90, 12/130, 24/75, 24/95C, 24/110 & 24/150
HIGH OUTPUT ALTERNATORS WITH 3-STAGE REGULATOR
MASTERVOLT
Snijdersbergweg 93,
1105 AN Amsterdam
The Netherlands
Tel.: +31-20-3422100
Fax.: +31-20-6971006
www.mastervolt.com
ENGLISH:
NEDERLANDS:
DEUTSCH:
FRANÇAIS:
v 1.2. June 2007
PAGE 1
PAGINA 25
SEITE 49
PAGINA 73
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Summary of Contents for Mastervolt Alpha 12/90
- Page 1 USERS MANUAL / GEBRUIKERSHANDLEIDING BETRIEBSANLEITUNG / MANUEL UTILISATEURS ALPHA ALTERNATOR 12/90, 12/130, 24/75, 24/95C, 24/110 & 24/150 HIGH OUTPUT ALTERNATORS WITH 3-STAGE REGULATOR ENGLISH: PAGE 1 MASTERVOLT NEDERLANDS: PAGINA 25 Snijdersbergweg 93, DEUTSCH: SEITE 49 1105 AN Amsterdam FRANÇAIS: PAGINA 73 The Netherlands Tel.: +31-20-3422100...
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Page 2: Table Of Contents
CONTENTS THIS MANUAL HAS TO BE READ IN COMBINATION WITH THE “APPENDIX ALPHA ALTERNATOR” CONTENTS: v 1.2. June 2007 GENERAL INFORMATION..........................4 Use of this manual ..........................4 Guarantee specifications ........................4 Quality..............................4 Validity of this manual......................... 4 Liability..............................4 Changes to the Alpha alternator / Alpha Pro regulator............... - Page 3 CONTENTS COMMISSIONING............................16 Testing .............................. 16 5.1.1 Test prior to starting engine ....................16 5.1.2 In operation test......................... 16 Adjustments ............................17 5.2.1 Voltage Settings ........................ 18 5.2.2 Absorption voltage adjustment..................18 5.2.3 Float voltage adjustment ....................18 5.2.4 Absorption time adjustment....................19 5.2.5 Temperature compensation ....................
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Page 4: General Information
USE OF THIS MANUAL GUARANTEE SPECIFICATIONS This manual serves as a guideline for the safe and Mastervolt guarantees that this unit has been built effective operation, maintenance and possible according to the legally applicable standards and correction of minor malfunctions of the Alpha specifications. -
Page 5: Safety Guidelines And Measures
2 is not considered Safety instructions and warnings are marked in this to be consistent with the intended purpose. manual by the following pictograms: Mastervolt is not liable for any damage resulting from the above. A procedure, circumstance, etc which deserves extra attention. -
Page 6: General Safety And Installation Precautions
Mastervolt non responsible from any claims arising electrical wiring regulations. out of the use of the Mastervolt parts in the life • Be aware of parts that can be hot: not only support equipment. -
Page 7: Technology
ALPHA PRO REGULATOR operation of the Alpha Alternator together with the The Alpha Pro voltage regulator controls the Alpha Pro regulator from Mastervolt. This charging alternator’s output voltage. It is designed for optimal system is designed to give high output with low recharging of both wet, gel and AGM batteries. -
Page 8: Temperature Compensated Charging
TECHNOLOGY Once the battery is 100% full, the Alpha Pro 3.2.2 Temperature compensated charging regulator automatically switches over to the float A battery temperature sensor in included in the phase. delivery of the Alpha Pro regulator. By installing this battery temperature sensor the charge voltages are During the float phase (C) the Alpha Pro regulator automatically adapted for deviating temperatures. -
Page 9: Installation
• Excessive heat. maximum alternator Mastervolt alternators offer a much higher output temperature should not exceed 105°C/220°F. An than alternators usually supplied with engines. As a alternator can become damaged if it operates too result, a single V-belt is insufficient to transfer the long at excessive temperatures. -
Page 10: Mounting Of The Alternator
(figure 5, references A and B) on the transmission. mounting bracket with the alternator mounting As every engine differs from the other, Mastervolt bolts. Note that the ear at the rear side of the can not give any specific mounting instructions for alternator housing should be fixed in such way any particular engine. -
Page 11: Electrical Connections
INSTALLATION ELECTRICAL CONNECTIONS WARNING Let installation work be done by a licensed electrician. Before beginning with the connection of the wiring, make ENGINE the DC distribution voltage free. CAUTION! Short circuiting or reversing polarity may lead to serious damage to the batteries, the alternator, the Alpha Pro regulator, cabling and/or... -
Page 12: Battery Capacity
See reference . Connect the red wire of the etcetera Therefore Mastervolt strongly advises to cable harness between the [+bat] terminal of the make an energy balance for the entire electrical Alpha Pro regulator and the positive (+) pole of installation. - Page 13 Connect this wire to the [field] terminal of the Alpha Pro regulator. reg on Ignition switch NOTE, only applicable for non-Mastervolt alternators: With most other brands there is an internal connection between the negative field terminal of the alternator (D–) and the alternator housing (GND).
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Page 14: Connection Of A Tachometer (Optional)
INSTALLATION 4.5.4 Connection of a tachometer (optional) 4.5.5 Connection of an alternator indication If a tachometer is used, it should be connected lamp (optional) between the W terminal of the alternator (see To check the correct operation of the alternator often reference ) and the B–... -
Page 15: Use Of A Battery Isolator (Optional)
See figure 12 for installation details. 24/110 and 24/150 do not have a D+ connection. See APPENDIX figures A-11, A-13 and A-14 for Therefore Mastervolt offers a solid state relay that installation examples. can be used to simulate the charge lamp terminal (D+). -
Page 16: Commissioning
COMMISSIONING 5 COMMISSIONING Check whether the alternator field is energized CAUTION! by touching the shaft of the alternator with a Check all wiring before commissioning: screwdriver. It should be strongly magnetic. positive connected positive (red cables), negative connected to negative De-energize the [reg on] terminal by turning off (black cables) the ignition switch or by removing the jumper... -
Page 17: Adjustments
COMMISSIONING Follow all steps in order of succession as described ADJUSTMENTS below: Both the Alpha alternator and the Alpha Pro regulator are preset from the factory with settings Measure and record the battery voltage at idle. that will work fine for most batteries. Start the engine. -
Page 18: Voltage Settings
COMMISSIONING 5.2.2 Absorption voltage adjustment absorption bulk float The factory-settings for the absorption voltage are 14.25V for 12V battery and 28.50V for 24V batteries (@ 25°C / 77°F). When the green absorption LED is on, increase the engine rpm slightly to verify that the LED’s charge voltage does not increase. -
Page 19: Absorption Time Adjustment
COMMISSIONING 5.2.4 Absorption time adjustment OPERATION Factory setting of the absorption timer: 4 hours. This After starting the engine the Alpha alternator and the is appropriate for most systems. Exceptions might Alpha Pro regulator will switch on automatically. There is no need for adjustment or operation. If the •... -
Page 20: Maintenance
MAINTENANCE 6 MAINTENANCE During maintenance of the Alpha Alternator, Alpha TENSION AND CONDITION OF V-BELTS. Pro regulator and/or the engine, the Safety Loose belts will slip on the pulley, fail to turn the Guidelines & Measures are applicable at all times. alternator’s rotor and finally overheat the alternator. -
Page 21: Trouble Shooting
7 TROUBLE SHOOTING In case of any fault, we recommend consulting the Maintenance section first (see section 6). If you cannot solve a problem with the aid of the table below, contact your local Mastervolt Service Centre. See www.mastervolt.com. PROBLEM... - Page 22 Use an alternator with more capacity or increase charging capacity by using an too low additional charger. Consult your Mastervolt representative for advice. • Defective Alpha Pro regulator Replace Alpha Pro regulator • Once the regulator is in absorption Alpha Pro regulator does not Nothing;...
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Page 23: Technical Data
TECHNICAL DATA 8 TECHNICAL DATA SPECIFICATIONS ALPHA ALTERNATORS 12V models Model: 12/90 12/130 Part number: 48012090 48012130 Type enclosure (see APPENDIX): Charge current: 130A Recommended DC fuse 125A 160A Recommended DC wire size up to 3 m AWG2 - 35mm² AWG0 - 50mm²... -
Page 24: Specifications Alpha Pro Regulators
0.4 kg / 0.9 lbs 0.4 kg / 0.9 lbs * Voltage at 25°C (with connected temperature sensor 14.4/28.8V at 20°C) **See APPENDIX for outline drawings Snijdersbergweg 93, 1105 AN Amsterdam, The Netherlands Tel : + 31-20-3422100 Fax : + 31-20-6971006 Email : info@mastervolt.com...
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