The ALT-72 alternator tester is designed to provide manufacturers with a detailed test of the alternators performance under varied temperatures from -73° to 190°. Custom tests procedures are easliy configured to vary the temperature, alternator speed and other test conditions. Smart Delays can triger the next test step when the programmed temperature is achieved. The temperature monitoring unit has eight insulated channels so sensors can be placed at varous locations on the unit under test. The user friendly environment makes the setup and test procedure as simple as pressing a button. The alternator tester ALT-72 is PC based system, variable speed drive motor, battery simulator and programmable electronic load. During the automatic test the computer controls the motor driver 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. When the test is complete, the computer verifies all parameters and prints reports. If the unit is no good, diagnostic messages are shown. Special software for statistical analysis and data collection is available too. For reliability tests and engineering analysis a special long time test mode is included. The ALT-72 Tester is 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).