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Frequently-asked questions

Frequently Asked Questions about TEST & MEASUREMENT:
This section contains the most frequently-asked questions about our products and services. Please use our keyword-driven search engine to find an aswer to your question.

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36 result(s) :

Obsolete Products

Question no.1 (ask on 10/10/2018) : How to know the product replacing my device from the range Physical & Environmental Measurements ?

answered on 15/10/2018 :

In order to choose the right product according to the one you want to replace, please refer to the table below : 

Question no.2 (ask on 24/02/2016) : I have old Metrix multimeters. What are the current replacement models?

answered on 24/02/2016 :
Please find below a summary of the instruments which can be replaced with the MTX3290, MTX3291, MTX3292, MTX3293, MTX202 and MTX203.

REPLACEMENT POSSIBLE WITH MTX3290 (TRMS 6,000 cts, VDC 0.8% , VAC 20 kHz , CAT III 600V)
METRIX MX20 (AVG 2,000 cts, VDC 0.8%, VAC 500 Hz, CAT II-600 V )
METRIX MX44 (AVG 4,000 cts, VDC 0.3%, VAC 1 kHz, CAT III-600 V )

METRIX MX26 (TRMS 5,000 cts, VDC 0.3%, VAC 100 kHz, CAT III-600 V +RS232 option)
METRIX MX54 (TRMS 50,000 cts, VDC 0.05%, VAC 50 kHz, CAT III-600 V +RS232 option)
METRIX MX55 (TRMS 50,000 cts, VDC 0.025%, VAC 50 kHz, CAT III-600 V +RS232 option)
METRIX MX56 (TRMS 50,000 cts, VDC 0.025%, VAC 50 kHz, CAT III-600 V +RS232 option)
METRIX MX58HD (TRMS 50,000 cts, VDC 1%, VAC 50 kHz, CAT III-600 V +RS232 option)
METRIX MX59HD (TRMS 50,000 cts, VDC 0.3%, VAC 100 kHz, CAT III-600 V +RS232 option)

REPLACEMENT POSSIBLE WITH MTX3292 (TRMS 100,000 cts, VDC 0.03% , VAC 100 kHz , CAT III 1000V+USB+LOG)
METRIX MX26 (TRMS 5,000 cts, VDC 0.3%, VAC 100 kHz, CAT III-600 V +RS232 option)
METRIX MX58HD (TRMS 50,000 cts, VDC 1%, VAC 50 kHz, CAT III-600 V +RS232 option)
METRIX MX59HD (TRMS 50,000 cts, VDC 0.3%, VAC 100 kHz, CAT III-600 V +RS232 option)
METRIX MTX3281B (TRMS 100,000 cts, VDC 0.1%,VAC 50 kHz, CAT III-600 V)
METRIX MTX3282B (TRMS 100,000 cts, VDC 0.03%,VAC 100 kHz, CAT III-600 V)

REPLACEMENT POSSIBLE WITH MTX3293 (TRMS 100,000 cts, VDC 0.02% , VAC 200 kHz , CAT III 1000V+USB+LOG)
METRIX MTX3282B (TRMS 100,000 cts, VDC 0.03%, VAC 100 kHz, CAT III-600 V)
METRIX MTX3283B (TRMS 100,000 cts, VDC 0.02%, VAC 200 kHz, CAT III-600 V)

Power, energy and disturbance analysers

Question no.1 (ask on 15/10/2018) : What is the current replacement model for the CA8435 Power Analyzer?

answered on 15/10/2018 :

The CA8435 has been replaced by the Qualistar + CA8436, below an overview of its caracteristics and features:

  • Designed to cover all 600 V CAT IV and 1000 V CAT III applications according to IEC 61010, 
  • With 5 voltage and 4 current inputs, 
  • Robust and waterproof for indoor and outdoor use, 
  • Allows continuous and simultaneous recording of all parameters, 
  • Monitoring mode with alarms.

Question no.2 (ask on 29/06/2018) : What is the firmware version compatible with the Qualistar CA8335 & CA8435?

answered on 29/06/2018 :

The latest firmware version compatible with the Qualistar CA8335 & CA8435 is v4.3, which you can download and install from the following link:


Question no.3 (ask on 04/02/2016) : How to know which product replace mine ? For example, I have a CA8332B and a logger L320 that I would like to replace.

answered on 04/02/2016 :

These two products belongs to the category Power, Energy, Disturbance.

You can find the equivalents products in the table below :


Question no.1 (ask on 15/10/2018) : I have a problem with the battery of my PEL, is it possible to change it?

answered on 15/10/2018 :

Yes, in this case, I advise you to contact the closest Chauvin Arnoux agency, in order to buy the spare battery, then you can follow the steps described on the video of the procedure of change of the battery, that can be downloaded from the link below:  


However, if you still have a warranty on your instrument, you will lose all the rights to warrantees if you do so by yourself. In this context, you can refer to one of our Manumesure technical centers, an entity belonging to the Chauvin Arnoux group, which is responsible for all the checks, calibrations and repairs of the Chauvin Arnoux Group's appliances and other brands.

Benchtop digital oscilloscopes

Question no.1 (ask on 18/05/2018) : How can I get the curves obtained from my DOX3304 oscilloscope?

answered on 23/05/2018 :

EASYWAVE software is designed in order to allow you to:

- retrieve the curves from the oscilloscope mode

- edit the waveforms using drawing tools

- transfer or import toward the ARBitary function (4 memory locations)

- consult from the library of files (sine, square, ramp, pulse, noise, exponential...) 

The EasyWave software can be downloaded from the link below:


Question no.2 (ask on 23/02/2017) : Once I have zoomed on my signal, I no longer have access to the cursors. What can I do about this?

answered on 23/02/2017 :

The cursors must be activated before activating the zoom and they will then be available to perform precise vertical and/or horizontal measurements.

Question no.3 (ask on 17/12/2015) : Is it possible to display the XY mode on channels 1&2 and 3&4 simultaneously on a DOX3104?

answered on 17/12/2015 :

The DOX3104 and DOX3304 oscilloscopes allow measurements to be displayed in XY mode on channels CH1/CH2   and/or   CH3/CH4 simultaneously.

This is a feature widely used in electronics.

Qualistar power & energy quality analysers

Question no.1 (ask on 01/06/2016) : We do not have power outlet in our electrical cabinet to supply our Qualistar. Is there another solution ?

answered on 01/06/2016 :
In order to extend the 10hours batteries autonomy, Chauvin Arnoux deleveloped a new accessory for the QualistarPlus. The PA31ER adapter is directly connected on the voltage inputs of the QualistarPlus, and allow you to supply the device as long as there is a voltage. The batteries will be able to take over in case of power cut. It accepts every voltages that can measure the QualistarPlus, 1000Volts AC and DC.

You will find more information on this accessory by downloading the User's Manuam through the link below :

Multimeter clamps

Question no.1 (ask on 29/04/2016) : I want to use my F607 clamp on a 10x80 busbar. Is this possible?

answered on 29/04/2016 :
Yes, this is possible with the F607 clamp.

You will find drawings showing the dimensions accepted by the F40x and F60x multimeter/wattmeter clamps at the following addresses:
F40x - http://www.chauvin-arnoux.com/sites/default/files/download/Schema_F40x_692599_p2_DIAMETRE_ENSERRAGE.pdf
F60x - http://www.chauvin-arnoux.com/sites/default/files/download/Schema_F60x_692598_p2_DIAMETRE_ENSERRAGE.pdf

(F40x refers to the F401, F403, F405 and F407 clamps; F60x refers to the F601, F603, F605 and F607 clamps)


Portable oscilloscopes with isolated channels

Question no.1 (ask on 18/02/2016) : I cannot access to the applet ScopeNet. How to fix this issue ?

answered on 18/02/2016 :
You have to follow the policytool procedure (page 178 of the User Manual) in order to allow the applet on your computer.
User manual available at the address -> http://www.chauvin-arnoux.com/sites/default/files/D00STP25_10.pdf 
Then, you will have to download the last version of Java through the link below http://java.com/fr/download/                          (there is a new one since 05/02/2016)
Warning : it is not possible to use Google Chrome, you will have to use Mozilla Firefox or Internet Explorer.

TRMS digital multimeters

Question no.1 (ask on 14/12/2015) : I want to replace my C.A 5205 multimeter. Which instrument do you recommend?

answered on 14/12/2015 :

We recommend the C.A 5231 which is available, like the C.A 5205, in a kit with a current clamp and can be used to read the current measurements directly on the multimeter.

Question no.2 (ask on 14/12/2015) : I am an electrician and my C.A 5220G has stopped working. Which of the current models should I choose to replace it?

answered on 14/12/2015 :

The C.A 5273 is an excellent choice: like the C.A 5220G, it offers a VLowZ low-impedance voltage calibre (the new name for the Velec setting), as well as all the functions required by electricians. The shockproof protective sheath is now built-on and allows you to use the MultiFix multi-position mounting system. Like the C.A 5220G, the C.A 5273 benefits from a 3-year warranty.

AC/DC multimeter clamps

Question no.1 (ask on 14/12/2015) : The F01 and F03 clamp multimeters are no longer listed in your catalogue. Which models should I choose to replace them?

answered on 14/12/2015 :

Please have a look at the F201 (AAC) and F203 (AAC/ADC) models. These TRMS clamp multimeters measure AC and DC voltages, resistance and continuity, as well as temperature, and are also equipped with the revolutionary TrueInrush function for measuring overcurrents. With their CAT IV 600V rating, these models can be used to work in total safety on a wider variety of installations than their predecessors.

Question no.2 (ask on 14/12/2015) : I'm not sure whether to choose the F201 or the F401 model to replace my F11N and F13N clamps. Which do you recommend?

answered on 14/12/2015 :
You are in the right area, as both these TRMS clamp multimeters measure AC currents and offer the same functions as the F11N and F13N models.
The final choice will depend mainly on the maximum currents to be measured. The instruments you own measured up to 700 A with a clamping diameter of 42 mm.
The F201 clamp measures up to 600 A with a clamping diameter of 34 mm, whereas the F401 model measures up to 1,000 A on cross-sections of up to 48 mm.
In addition, compared with the CAT III 600V rating of the F11N/F13N, both of these models allow you to extend the scope of your work: up to CAT IV 600V installations with the F201 and up to CAT IV 1000V installations with the F401.

Question no.3 (ask on 14/12/2015) : Which model has replaced the F15 clamp multimeter?

answered on 14/12/2015 :
With its 1,000 A AC/DC, TRMS acquisition system and use on installations up to 1,000V CAT IV with an IP54 protection rating, the ideal model to replace the well-known F15 is the F403.

Voltage absence testers (VATs)

Question no.1 (ask on 14/12/2015) : What are the major upgrades provided by the C.A 740N/760N new-generation Voltage Absence Testers compared with the previous C.A 740/760 range?

answered on 14/12/2015 :
The C.A 740N and C.A 760N models are the result of a change in the standards after implementation of Edition 2 of the IEC/EN 61243-3 standard.
The IEC/EN 61243-3 standard defines the usage and the functional and technical specifications of the Voltage Absence Testers used during the separation procedure for an electrical installation.
This new edition of the standard requires the addition of a separate, redundant voltage detection system, which is why the ELV (Extra Low Voltage) LED has been added on the C.A 740N and C.A 760N models.
Similarly, the RCD trip function up to 30 mA has also been removed on the C.A 760N because of a change in the standards.

Although this change has been mandatory for measuring instrument and tester manufacturers since 1st May 2013, the standards and the law do not prohibit the use of instruments from the previous generation and there is no danger in doing so.

The C.A 740N and C.A 760N also include a few other modifications:
- automatic switching in continuity detection mode if no voltage is present
- extended continuity testing with an indication for R < 2 kΩ, 60 kΩ and 300 kΩ

Wattmeter clamps

Question no.1 (ask on 09/12/2015) : Which clamp multimeters replace the F05 and F09 models?

answered on 09/12/2015 :
The F205 clamp multimeter is a good replacement for these 2 models because it offers measurement of the W, var, VA and var power values for single and balanced three-phase configurations, phase rotation direction testing and THD measurement, as well as the revolutionary TrueInrush function for measuring overcurrents.
The F205 clamp can be used for measurements with currents up to 600 A. On higher-powered installations, you should choose the F405 or F605 which offer the same functions for currents up to 1,000 A and 2,000 A, respectively.