Lite-Check PRO-CHECK 720 Operation Manual

VOLTAGE REQUIREMENTS
LITE-CHECK testers are software driven electronic devices requiring a reliable 12-
volt power source, matching the vehicle's standard electrical operation.

Excessive voltage applied to vehicle will shorten vehicle component life

Non-filtered unregulated power may damage vehicle electronics (ECU's)

Low voltage is unreliable for accurate testing
PRO-CHECK MODELS
720AC requires 110-volt AC power
720DC requires filtered regulated 12-volt DC power

Power Source should be a 12-volt battery

Maintain battery with trickle charger when tester is not in use

12-volt DC power supplies are available from LITE-CHECK

DO NOT USE BATTERY CHARGER
Operation of the two models is identical. In both cases, if the operating voltage to
the vehicle falls below 11 volts, the message "low power" will appear on the
display and the tester will shut down.
LITE-CHECK manufactures a wide range of test and inspections
solutions. Visit LITE-CHECK today at http://www.lite-check.com for
the latest information on your new tester, and access to high-quality
accessories to ensure you gain the maximum benefit from your
investment.
CAUTION
: DO NOT WELD WITH TESTER CONNECTED TO TRAILER
LITE-CHECK WARRANTY AND SERVICE
LITE-CHECK products have a one-year limited warranty on parts and labor against manufacturing
defects. All warranty service to be performed at LITE-CHECK, Spokane, Washington. Customer is
responsible for shipping costs. Warranty does not cover abuse, neglect or damage caused by air,
electrical, or other outside sources as specified in owner's manual. Some parts may be subject to OEM
warranties. Any modifications made to equipment without prior written approval voids this warranty.
Any software upgrades released within one year from date of shipment will be provided at no additional
cost. Extended, enhanced and/or expedited warranties are available. Testers have a serial number
attached for tracking.
Questions concerning operation and service may be addressed to LITE-CHECK by calling
1-800-343-8579 during normal business hours (Pacific Time Zone).
LITE-CHECK LLC
301 N. Havana
Spokane, WA 99202
www.lite-check.com
Manual Rev. 021811
OPERATIONS MANUAL
MODEL 720 – (12VDC) and MODEL 720AC – (110VAC)
AUTOMATED TRAILER TESTER
FOR 12 Volt, 7-PIN
LIGHTING & ELECTRICAL SYSTEMS
Direct readout of electrical faults

Open Circuit

Open Ground

Short w/all circuits identified

Chassis Ground

10-Second automated test of all circuits with audible alarms and direct fault
identification

Amperage measurements for each circuit

Perform TMC RP 141 ABS Power Supply Requirements Test

Automatic current management when chassis grounds are identified prevents
damage to trailer electrical systems

Direct control of each circuit from tester's control panel and the remote
control

Unique and easy to hear audible alarms for each type of electrical fault

Auxiliary circuit button on remote simplifies ABS self-test inspections

7-pin 'round' connector