Digital Ohmmeter

Model DO7 is a new digital micro-ohmmeter (DLRO). This portable digital ohmmeter is a practical instrument for low resistance measurement, ideal for use in the workshop, field or test facilities. It is of rugged construction contained in an ABC plastic case with lid and handle.

The rechargeable sealed lead acid battery means real portability with more than 1 to 20 hours continuous operation. The built-in charger with automatic switch off prevents deep discharge. Full measurement capability is maintained when batteries are being charged.
The device is supplied ready for immediate use with battery, line cord and four wire test leads with Kelvin clips.

Features:
• True 4 wire input eliminates lead resistance errors.
• 6 ranges from 600.0 uOhm to 60.00 Ohm (0.1 microOhm resolution).
• Large 0.8" FED display.
• 0.1 microOhm resolution.
• 10 A measuring current.
• Input protection to 415V RMS.
• Forward and reverse measuring current.
• Auto average of forward and reverse measurement to offset thermal EMF.
• RS 232 output.
• Digital calibration.
• Line / rechargeable battery operation. Minimum 1 hours operation from full charge, built-in battery charger with battery state indicator, full measuring functions during battery charging.
• Open circuit warning.
• Rugged industrial maintenance free design.
• Worldwide universal line operation switchable from 100 to 240 Volts.

Duncan Instruments Canada Ltd., 121 Milvan Drive, Weston, ON M9L 1Z8. Tel: 416-742-4448; Fax: 416-749-5053.