Alternator Testers

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ALT-284 Alternator TesterThe ALT-284 are designed to provide a high accuracy test of the alternator in a very short time. With dual stations the operator can be loading the next alternator into one station while the second station is testing another unit. With optional automatic connections the cycle time can be as fast as 11 seconds. The alternator is driven via a changeable socket, hex or torx driver. The user friendly environment makes the setup and test procedure as simple as pressing a button.

The machine not only tests the product to a preset limit, but has a diagnostic system built in. If the unit does not pass the test the operator is given detailed explanation as to why the unit did not work. This eliminates the guess work by the operator and even unskilled persons can operate the tester and make diagnostics of alternators and voltage regulators.

The ALT-284 uses a PC based system with a variable speed drive 15 or 20 HP motor, battery simulator and programmable electronic load. During the automatic test the computer controls the alternator speed and load according to programmable test procedure to verify the alternator and voltage regulator. For a precise voltage regulator check, the car's on board computer and connection problems are also simulated. Cut-in (turn on) speed, soft start delay, LCR (Load Control Response) function, feedback signal to the on board computer, tachometer output frequency, the rectifier's voltage drop and reverse diode leakage, the voltage regulator saturation voltage, stator voltage and many other parameters are also measured. Tests new generation units with PCM, RVC or Lin Interface.

When the test is complete, the computer verifies all parameters and prints reports. If the unit is no good, diagnostic messages are shown. Test results are recorded for SPC and analysis. The ALT-284 Testers are supplied with built in label printer port (24 pin), built in RS232C serial interface for data exchange or SPC programming and test plugs for most popular applications. Available in many working voltages (208 to 480V at 50/60 Hz).

Technical Specifications

  • Output Voltage up to 50 Volts
  • Stator Voltage up to50 Volts
  • Output Current 0-300 Amps@ 12V
  • Field Current up to10 Amps
  • Alternator Speed 0-9,000 RPM (12,000 Optional)
  • Alternator Leakage Current up to 100mA
  • Feedback Voltage 0-50V (0-100% PWM)
  • Output Power up to 10kW with optional load banks
  • Memory for virtually unlimited part number profiles
  • Alternator Ripple Current 0 - 100 Amps