The DCM clampmeters are the ideal instruments for use in the installation, maintenance, monitoring or checking of electrical systems and equipment.

There are three different current clamps in the DCM range covering many applications. The series starts with a plugin unit for basic a.c. current measurements made in conjunction with a multimeter, a volt plus current unit where the user needs the flexibility of being able to make voltage measurements as well as current measurements and a high current a.c./d.c. unit.

The traditional measuring method for taking current measurements by inserting a shunt resistor or a current transformer has inherent disadvantages, like the necessity to break the circuit conductor. These competitively priced clamp-on instruments offer the user many advantages depending on the unit selected such as the measurement of d.c. as well as a.c. currents or the capability of measuring voltages and resistances.

The DCM2033 can be used for measuring volts, resistance and current. It offers the flexibility of a multimeter with the advantages of a current clamp. The L.C.D. display has a readout of 4000 counts with measurement capabilities of up to 600 A, 600 V and 40 k-ohm. This versatile model also features a continuity buzzer on the resistance range and a data hold button for freezing the reading.

The highest current unit available in the series is the DCM2039. This instrument has a specified accuracy for measurements to 1000 A but has an over-range capability of up to 2000 A. As the clamp incorporates Hall Effect technology it can measure d.c. currents as well as a.c. currents. Additional features are the peak hold button and the frequency counter which will measure frequencies between 20 Hz and 10 kHz.