Battery Tester © GxT Incorporated, Cheboygan MI, U.S.A.
SAFETY PRECAUTIONS SPECIFICATIONS Measurement Range ......................Ferret 40......... Ferret 42HD Battery Volts .............................. 4.0 to 19.99............ 4.0 to 40.0 External (10 Meg) .................... 0 to +/- 19.99........ 0 to +/- 19.99 ................................................... 0 to +/- 50.0.......... 0 to +/- 50.0 Amps (Inductive) ..................... 0 to +/- 199.9.......... to +/- 199.9 .................................................... 0 to +/- 600.........
WARRANTY FERRET BRAND LIMITED PRODUCT WARRANTY GxT, Inc. of Cheboygan Michigan, warrants to the original purchaser that FERRET brand products are free from defects in materials and workmanship for a period of two years from date of purchase. Our sole obligation for a product within the above warranties will be to repair or replace, at our option, any defective parts and return the product to the sender within the U.S.A.
BATTERY LOAD TEST CAUTION Zero Amp Meter. Place Wear Safety Glasses, Then AMP PROBE around Do not break live either analyzer cable. circuits at the battery terminals, Avoid BLACK RED accidentally shorting the insulated battery terminal to any ground metal. Never put CHASSIS BATTERY a wrench on a live battery wire terminal. Burns may be the result. Disconnect the battery chassis cable first 1. Be sure the Load Knob is turned to OFF before connecting the analyzer cables to the battery.
STARTER TEST When testing the starting system, first test for battery performance. With a known good battery, the starter motor, cables and starter solenoid can be checked. Starter amps should not exceed the maximum specified for the vehicle being tested, and the cranking RPM should be satisfactory. KEY SWITCH 1. Engine should be at normal operating temperature. Make sure all lights and accessories are off and vehicle doors are closed. 2.
VOLTAGE DROP TEST ALTERNATOR OUTPUT TEST The voltage drop test is a very helpful diagnostic test for determining the condition of cables and connections for the starting charging circuit. The voltage drop test can be used on any part of the circuit. In the example below, we are checking the entire circuit from the positive side of the battery to the starter.
