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Chauvin Arnoux MX 57EX TRMS Intrinsically Safe Multimeter

ONE ONLY The Chauvin Arnoux MX 57EX Intrinsically Safe Multimeter is an ATEX-certified 50,000-count TRMS digital multimeter, designed for use in hazardous or explosive "gas" or "dust" en

Next Day Delivery (subject to availability)

£749.95 excluding VAT £899.94 including VAT @ 20% Regular Price: £1,111.20
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Chauvin Arnoux MX 57Ex Intrinsically Safe TRMS Multimeter

This ATEX-certified 50,000-count TRMS digital multimeter is designed for use in hazardous or explosive "gas" or "dust" environments, in compliance with the following standards:

Mine: Category Ex I M2
Surface industry: Category 2 (gas and dust) EX II 2 gd
Zone 1&2(gas) Ex ib I and Ex ib  II T5 or T4 or T3
Zones 21&22(dust) EX ib D21 IP6X T°…°C

It meets the following specifications:

- ATEX 2014/34/UE directive
- EN/IEC 60079-0 – EN/IEC 60079-11
- EN/IEC 61241-11 - EN/IEC 61241-0
- EN/IEC 61010-1 – 600 V CAT III+EN61010-2-030 2010
It is certified LCIE 02 ATEX 6005 X and EEx ib IIC T5/ EEx ib I ("old regulations") as per:
- CE inspection certificate number LCIE 02 ATEX 6005 X and  additional clauses LCIE 02 ATEX 6005X / 01, 02, 03, 04

It is equipped with a 500 mA fuse. It is delivered in a bag with some of its accessories.

• Bargraph; zoom or central zero
• VDC from 0.5 to 600 V ,
• AC and AC+DC voltage from 0.5 to 600 V, accuracy 0.025%
• Bandwidth: DC to 50 kHz
• AC and AC+DC current from 500 µA to 500 mA
• Resistance from 500 Ω to 50 MΩ
• MIN, MAX, Average and Peak
• Frequency, capacitance, temperature, dB, resistive power, duty cycle, pulse width/timer, event counter
• Continuity and diode tests


About Intrinsically Safe Products

Products that appear on this website that are listed as or relate to a classification of intrinsic safety are titled and described according to our best understanding and/or interpretation of the complex and sometimes changing criteria governing such classification as set out by the Health and Safety Executive.

Please note that due to the volatile nature of the intended use of products in this category,  neither UK Test Instruments or Instrument Sales and Service can be held responsible for any incident that arises from the purchase or use of any product described within this web site. For more information please visit the health and Safety Executive website with specific regard to Hazardous Area Classification and Control of Ignition Sources.

ISSWWW and Chauvin Arnoux

The Chauvin Arnoux Group of companies, incorporating the Metrix and Multimetrix brands are synonymous with design and production of the finest quality products for the electrical testing industry, covering a diverse sector of the market for over 100 years. From their awarded Digiflex current sensors, universal testers, multimeters, network and power analysers, right up to laboratory instrumentation and beyond.
ISSWWW and Chauvin Arnoux have enjoyed a close working partnership for many years and we supply many of their products to trade and industry the world over.

Chauvin Arnoux MX57Ex Intrinsically Safe TRMS Multimeter
Multimeter Type Handheld
Absolute Maximum AC Current Measurement 500mA ac
Absolute Maximum DC Current Measurement 10A dc
Absolute Maximum AC Voltage Measurement 600V ac
Absolute Maximum Resistance Measurement 50MΩ
Absolute Maximum DC Voltage Measurement 600V dc
Absolute Maximum Capacitance Measurement 50mF
Absolute Maximum Temperature Measurement +800°C
Functions Measured AC Current, AC Voltage, Capacitance, DC Current, DC Voltage, Resistance, Temperature
True RMS Yes
Maximum Frequency 50kHz
Model Number p MX 57EX
Best AC Voltage Accuracy ±1% + 3 Digits
Best AC Current Accuracy ±0.6% + 30 Digits
Weight 400g
Battery Life 300 h
Best DC Current Accuracy ±0.2% + 2 Digits
Length 189mm
Width 82mm
Minimum Operating Temperature 0°C
Best DC Voltage Accuracy ±0.025% + 2 Digits
Safety Category Voltage 600V
Best Resistance Measurement Accuracy ±0.07% + 2 Digits
Best Capacitance Measurement Accuracy ±1% + 2 Digits
Maximum Operating Temperature +50°C
Dimensions 189 x 82 x 40mm
Safety Category Level CAT III
Battery Type 9V
Hazardous Area Certification ATEX
Height 40mm

Standard FREE 3-5 Day Courier Delivery – UK Mainland only - Zones A & B
Included in the price for all orders over £40.00 (exc vat). Sent using express courier, delivered within 3-5 working days from the date of your order, subject to availability.

Standard 1-2 Day Express Courier Delivery – UK Mainland only - Zones A & B
£4.50 for all all orders under £40.00 (exc vat). Sent by express courier, delivered within 1-2 working days from the date of your order, subject to availability.

Express Courier 1-2 Day Delivery – UK Mainland only - Zones A & B
£4.50 select at the checkout. Sent using express courier.

Next Day Delivery – UK Mainland only - Zones A & B
£8.00 select at the checkout. Sent using express courier, orders must be placed before 3pm for next day delivery, subject to availability.

Saturday Pre 12am - UK Mainland only - Zones A & B
£15.00 select at the checkout. Sent using express courier, orders must be placed before 3pm for Saturday delivery.

Orders must be placed before 3pm for next day delivery and a telephone number supplied, subject to availability.
Please note that predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope of our dispatch and therefore may incure additional days lead time to your order.

Orders requiring calibration. Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received late afternoon and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration. Be assured they will ship on the next dispatch, this in most cases should not add more than 24 hours to you delivery.

Delivery Surcharges
Because of the high cost of carriage we need to apply a surcharge on all deliveries made in the following regions bringing the carriage charges to:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands. 
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands.
  • Zone E - Northern Ireland
  • Zone F - Republic of Ireland

New Postage Map Sept 2018> 

International delivery

International delivery charges are automatically added to your order at the checkout; you can also use the guide below for a guide on prices. For any questions regarding international deliveries please contact us at

If no shipping option is available to your selected country please call us on +44 (0) 1603 406 148 to purchase your items.