Fluke has released the tough 27 II and 28 II digital multimeters (DMMs), designed to survive water, dust and rough handling. Both meters are IP67 rated for water and dust resistance and offer an extended operating temperature range of -15°C to +55°C; they will function in -40°C temperatures for up to 20 minutes. They operate in 95% humidity, and are designed and tested to withstand a 3 metre drop. When enclosed in their protective yellow holsters, both meters will float in fresh or salt water. Holsters are reversible to provide added protection for the display and controls when the meter is not in use.

Both meters measure up to 1000 V a.c. and d.c. and up to 10 A (20 A for 30 seconds). They feature a 10 000 μF capacitance range and measure frequencies up to 200 kHz. Min/max and average readings are provided to capture variations automatically, and auto and manual ranging are standard for maximum flexibility. The DMMs are powered by three AA batteries and provide an average battery life of 800 hours. They can withstand hazardous 8000 V spikes caused by load switching and faults on industrial circuits and comply with second edition IEC and ANSI electrical safety standards. They are safety rated for use in CAT IV 600 V/CAT III 1000 V working environments.

The Fluke 28 II provides additional functionality: it is a true-rms meter that features a high-resolution 20 000-count display mode and includes a built-in thermometer that enables users to take temperature readings without carrying a separate instrument. It captures peak min/max and features a high-pass filter to ensure accurate voltage and frequency measurements on adjustable speed drives and other electrically noisy equipment.

For more information contact Comtest, +27 (0)11 608 8520, info@comtest.co.za, www.comtest.co.za