Intrinsically safe True RMS digital multimeter with PC interface

KUSAM-MECO, manufacturer of digital multimeters and clampmeters in India, has introduced for the first time a new intrinsically safe True RMS Digital Multimeter with PC Interface Model KM 822sEX. It has high transient protection of 12 KV (1.2/50?S) lightning surge. It has a four-digit 10,000 counts large, easy to read, backlight dual display. EX marking on meter such as Ex ib I Mb, Ex ib IIC Gb, SAEx MS/09-291X, Ex ib falls under Zone 1, which is an area where flammable gas can occur in normal operating conditions.

The measuring functions include DC/AC Voltage: 60mV ~ 1000V; DC/AC Current: 600micro A ~ 10A; Resistance: 0.1Ohm ~ 60MOhms; Frequency: 5Hz ~ 1MHz Capacitance: 60nF ~ 20mF. It also has Diode, Continuity and Duty Cycle Function.

In addition, it is splash/drop proof, intrinsically safe, and has beep-jack audible and visible input warning, relative zero mode, data hold, and Ex rating-Ex ib I/IIC T6. It has (optional) PC interface for downloading the data in computer via USB cable and software.

These meters comply with IEC SANS 600790:2000 & IEC SANS 60079-11:1999, which is for electrical apparatus for explosive gas atmospheres. Part 0 (general requirements) and part 1 (intrinsic). The approved explosive protection rating of this equipment is suitable for use in Zone1 hazardous area. Group I (coal mines) underground and Group II (surface).

It has double insulation per IEC61010-1 2nd Ed., EN61010-1 2nd Ed., UL61010-1 2nd Ed. and CAN/CSA C22.2 No. 61010.1-0.92 to Category IV 1000Vac and Vdc. For voltage, Ampere, milli Ampere and micro Ampere ranges, the safety category is IV1000 Vac and Vdc. It has fuse protection for micro Ampere and milli Ampere 0.44A/1000 Vac and Vdc, IR10kA or better, F Fuse. For Ampere ranges, the fuse protection is 11A/1000 Vac and Vdc, IR20kA or better, F Fuse. For voltage range fuse protection is 1050 Vrms, 1450Vpeak. Milli volts, Ohms and others fuse protection is 600 Vdc & Vac rms.

It features a rugged fire retardant casing, protective holster with probe holder and tilt stand. It is powered by one 9V battery no. NEDA 1604G, IEC6F22. Standard accessories include user manual, battery, test lead and carrying case. PC software is optional.

For more details, contact:
Kusam Electrical Industries Ltd
G-17, Bharat Industrial Estate, T. J. Road, Sewree (W),
Mumbai – 400015. INDIA.
Sales Direct : 022- 24156638
Tel.: 022 – 24124540, 24181649 I Fax : 022 – 24149659
Email : sales@kusam-meco.co.in, kusam_meco@vsnl.net
Web: www.kusamelectrical.com