CHAUVIN ARNOUX MA 400D-1000 Flexible Current Meter User Manual

CHAUVIN ARNOUX MA 400D-1000 Flexible Current Meter

Product Information

• Product Name : DigiFLEX MA400D
• Description: Flexible current meter
• Languages: FR, EN, DE, IT, ES

Features

• Flexible current sensor
• LCD display
• Measurement range up to 400 A
• HOLD function to freeze measurement display
• Low battery indicator
• Double insulation

Product Usage Instructions

1. Make sure to read the user’s manual carefully before using the DigiFLEX MA400D current meter.
2. Before measuring current, ensure that the battery is installed. The battery type and voltage requirement are not specified in the manual.
3. To measure current
   • Open the flexible sensor device.
   • Place the conductor inside the sensor and close it.
   • The measured current value will be displayed on the LCD screen.
4. To freeze the measurement display, press the HOLD button.
5. To turn on/off the device, use the ON/OFF button.
6. When the battery voltage is low and the device has approximately one hour of remaining usage, a low battery symbol will flash on the display.
7. To remove the flexible sensor from the conductor, open the sensor device and remove it.
8. The measurement ranges and typical errors for different current values are provided in the manual.
9. The manual also includes information on environmental conditions, maintenance, battery replacement, warranty, and accessories.

For more information and replacement parts, visit the Chauvin Arnoux website: www.chauvin-arnoux.com

Thank you for purchasing a DigiFLEX MA400D current meter with flexible sensor.

For best results from your instrument

• read this user’s manual carefully,
• comply with the precautions for use.

WARNING, risk of DANGER! The operator must refer to these instructions whenever this danger symbol appears.
Equipment protected by double insulation.
Must not be applied to or removed from bare conductors at dangerous voltages. Type B cur-rent sensor as per IEC/EN 61010-2-032 or BS EN 61010-2-032.
Battery.
The CE marking indicates compliance with the European Low Voltage Directive (2014/35/EU), Electromagnetic Compatibility Directive (2014/30/EU), and Restriction of Hazardous Substances Directive (RoHS, 2011/65/EU and 2015/863/EU).
The UKCA marking certifies that the product is compliant with the requirements that apply in the United Kingdom, in particular as regards Low-Voltage Safety, Electromagnetic Compatibility, and the Restriction of Hazardous Substances.
The rubbish bin with a line through it indicates that, in the European Union, the product must undergo selective disposal in compliance with Directive WEEE 2012/19/EU. This equipment must not be treated as household waste.

Definition of measurement categories

• Measurement category IV corresponds to measurements taken at the source of low-voltage installations.
• Measurement category III corresponds to measurements on building installations.
• Measurement category II corresponds to measurements taken on circuits directly connected to low-voltage instal-lations.

PRECAUTIONS FOR USE

This instrument is protected against voltages of not more than 1000V with respect to ground in measurement category III or 600V in CAT IV between the sensor and the conductor of which it measures the current.
The protection provided by the instrument may be impaired if the instrument is used other than as specified by the manufacturer.

• Do not exceed the rated maximum voltage and current or the measurement category.
• Observe the conditions of use, namely the temperature, the relative humidity, the altitude, the level of pollution, and the place.
• Before each use, check the integrity of the insulation on the coil, the cords and the housing. Do not use the instrument if it is open, damaged, or poorly reassembled, or its accessories if they appear damaged.
• The sensor must not be applied to or removed from uninsulated conductors at dangerous voltages.
• Use personal protection equipment systematically.
• All troubleshooting and metrological checks must be per-formed by competent and accredited personnel.

PRESENTATION

The DigiFLEX is used for RMS measurements of current, from 20 mA to 400 A.
The sensor takes the form of a flexible coil 17 or 25 cm long, connected by a shielded cord to a small housing containing the signal processing electronics, supplied by a battery.
The flexibility of the sensors makes it easier to wrap them round the conductor to be measured, whatever its type (cable, bar, strand, etc.) and its accessibility. The design of the snap-action coil opening and closing device allows it to be handled while wearing protective gloves.

On the back of the electronics housing is a notch for the attachment of a belt clip (optional). The multi-function belt clip can be used

• to carry the electronic housing on your belt,
• to attach it to a metal surface us-ing the built-in magnet,
• to hook it to a door or the edge of a table.

CURRENT MEASUREMENT

MEASUREMENT PRINCIPLE
The flexible sensor is based on the Rogowski coil.

It combines

• very good linearity with no saturation effect (and so no heating);
• light weight (no magnetic circuit).

USE
CONNECTION
First of all, use the appropriate means of protection.

• Press the yellow opening device to open the flexible coil.
• Open it, then place it round the conductor through which the current to be measured flows (only one conductor in the sensor).
• Close the coil.
• In order to optimize measurement quality, it is best to centre the conductor in the coil and to make the shape of the coil as nearly circular as possible.
• Press the key to switch the device on. The display unit lights.

MEASUREMENT
Read the measurement on the display unit. The current is given in Arms.

If the measurement exceeds the display capacity (400 A), the device displays 399.9, blinking.

If the measurement is too low (see § 3.2), the device displays dashes.

If the edges of the signal are too steep or its peak factor is too large, the device displays OL.

FREEZING THE MEASUREMENT
If you want to freeze the display of a measurement, press the HOLD key.

The HOLD symbol is displayed.
The device continues to make measurements, but the display is frozen. To release it, press the HOLD key again.

SEARCH FOR MAXIMUM
To search for a maximum, for example a spike lasting at least 200 ms, press the HOLD (MAX > 2s) key for more than two seconds.

The Max symbol is then displayed; the device starts making measurements a few seconds later.
The device compares each new measurement to the one displayed. If the new measurement is greater than the old, it replaces it in the display.
To return to the real-time display mode, press the HOLD (MAX > 2s) key again.

DE-ACTIVATION OF AUTOMATIC SWITCHING OFF
In order to save the batteries, the device switches itself off automatically at the end of 10 minutes if the user has not pressed a key (unless the MAX function is active).
It is possible to deactivate automatic switching off. To do this, when you switch the device on, press the and HOLD keys simultaneously. The P symbol (lit steadily) is then displayed.

To reactivate automatic switching off, switch the device off, then back on.

BATTERIES LOW
When the battery voltage drops and the remaining battery life

of the device is only about one hour, symbol blinks  the on the display unit.
When the battery voltage is too low to guarantee the accu- racy of the measurements, the  symbol lights steadily.
The batteries must then be replaced (see § 4.2).

DISCONNECTING

• Switch the device off by pressing the key.
• Press the yellow opening device to open the flexible core.
• Remove the flexible core from the conductor.

CHARACTERISTICS

REFERENCE CONDITIONS

√2

Conductor diameter| ≤ 5 mm
Battery voltage| 2.8 – 3.2 V
External electric field| none
External DC magnetic field (earth

field)

| <40 A/m
External AC magnetic field| none
Position of the conductor| centred in the

measurement coil

Shape of the measurement coil| nearly circular

ELECTRICAL CHARACTERISTICS

+ 10 ct)

| ±(1.5%

+ 2 ct)

| ±(1.5%

+ 2 ct)

In MAX mode

+ 10 ct)

| ±(1.5%

+ 2 ct)

| ±(1.5%

+ 2 ct)

VARIATIONS IN RANGE OF USE

Quantity of influence

| ****

Range of influence

---|---
Battery voltage| 1.8 to 2 V
Temperature| 0 °C to 50 °C
Relative humidity| 10 to 90% RH
**** Frequency response| 10 to 20 Hz

20 Hz to 30 Hz

30 Hz to 400 Hz

400 to 1000 Hz

1000 to 3000 Hz

Position of the conductor in the sensor (f<400 Hz)| Any position on the interior perimeter of the sensor
Adjacent conductor carrying alternating current| Conductor touching the ex- terior perimeter of the sensor
**** Peak factor| 1.4 to 3.5

limited to 600 Apeak

Serial mode rejection ratio in AC| 0 to 400 Adc
Common mode rejection, 50/60 Hz| 0 to 600 Vrms
Influence of a 50/60 Hz ex- ternal magnetic field| 0 to 400 A/m

TYPICAL FREQUENCY RESPONSE CURVES
at 39 Aac

Error on the measurement

Typical| Maximum
< 1 ct| ±(2% + 1 ct)
± 0.25 % / 10 °C| ±( 0.5 % / 10 °C + 2 ct)
0.2%| ± (0.3 % + 2 ct)
**** See § 3.4| ± (5 % + 1 ct)

± (1 % + 1 ct)

± (0.5 % + 1 ct)

± (6 % + 1 ct)

– 3 dB typical

± 0.5 %| ± (5 % ± 1 ct)
Away from opening: 33 dB

At openin g: 30 dB

| Away from opening: ≥ 28 dB At openin g: ≥ 25 dB
at 16.66 Hz : ± (2 % + 1 ct) at 50 Hz : ± (0.5 % + 1 ct) at 440 Hz : ± (30 % + 1 ct)| ± (6 % + 1 ct)

± (3 % + 1 ct)

–

< 1 ct| ≥ 50 dB
< 1 ct| ≥ 60 dB
Housing: 43 dB

Sensor: 50 dB

| Housing: ≥ 30 dB Sensor: ≥ 40 dB

POWER SUPPLY
The device can be powered

• either by two 1.5 V R03 (AAA) alkaline batteries,
• or by two NiMH storage batteries of the same size.

The nominal operating voltage is between 1.8 and 3.2 V. The battery life in continuous operation is

• 70 hours with super-alkaline batteries,
• 50 hours with NiMH storage batteries having a capacity of 1200 mAh.

The low battery condition is reported by the blinking symbol on the display unit. When it is lit steadily, the batteries must be replaced (see § 4.2).

ENVIRONMENTAL CONDITIONS
The instrument must be used in the following conditions

• Temperature in use : 0°C to +50°C
• Storage temperature : -20°C to +70°C (without batteries)
• Relative humidity in use : 80% RH to 50°C
• Relative humidity in storage : 90% RH (up to 45°C)
• The sensor can withstand a temperature of 90°C.

For indoor use.

• Level of pollution : 2.
• Altitude: <2000 m.

CHARACTERISTICS OF CONSTRUCTION
Overall dimensions

• Housing: 100 x 60 x 20 mm
• Connecting cable : 0.70 m
• Sensor

• Mass of the device : approximately 130 g.
• Batteries mas s: approximately 2 x 26 g
• Index of protection : IP 40 per IEC 60529 IK 04 per IEC 62262
• Afterflame time: V0 (per UL 94)

The flexible coil is resistant to oils and aliphatic hydrocarbons.

COMPLIANCE WITH INTERNATIONAL STANDARDS
Electrical safety per IEC/EN 61010-2-032 or BS EN 61010-2-032 for type B sensors. Rated voltage 600 V with respect to earth in category IV.

Double insulation

ELECTROMAGNETIC COMPATIBILITY
Emissions and immunity in an industrial setting compliant with IEC/EN 61326-1 or BS EN 61326-1 for portable devices.

MAINTENANCE

Except for the fuse and the batteries, the instrument contains no parts that can be replaced by personnel who have not been specially trained and accredited. Any unauthorized repair or replacement of a part by an “equivalent” may gravely impair safety.

CLEANING
Disconnect everything connected to the instrument and switch it off.

Use a soft cloth, dampened with soapy water. Rinse with a damp cloth and dry rapidly with a dry cloth or forced air. Do not use alcohol, solvents, or hydrocarbons.
Make sure that no foreign body interferes with the operation of the snap device of the sensor.

REPLACEMENT OF THE BATTERIES
The battery must be replaced when the green indicator flashes or remains off when the instrument is switched on.

• Disconnect everything connected to the instrument and and switch it off.
• Use a screwdriver to unscrew the two closing screws of the housing.
• Replace the old battery with a new battery (1.5 V R03 or AAA super-alkaline batteries).
• Close the housing; make sure that it is completely and correctly closed.
• Screw both screws back in.

Spent batteries must not be treated as ordinary household waste. Take them to the appropriate recycling collection point.

WARRANTY

Except as otherwise stated, our warranty is valid for 24 months starting from the date on which the equipment was sold. The extract from our General Conditions of Sale is available on our website.
www.chauvin-arnoux.com/en/general-terms-of-sale

The warranty does not apply in the following cases

• inappropriate use of the equipment or use with incompat-ible equipment;
• modifications made to the equipment without the explicit permission of the manufacturer’s technical staff;
• work done on the device by a person not approved by the manufacturer;
• adaptation to a particular application not anticipated in the definition of the equipment or not indicated in the user’s manual;
• damage caused by shocks, falls, or floods.

DELIVERY CONDITION

The DigiFLEX MA400D is delivered in a blister pack with

• two 1,5 V piles alkaline battery (AAA),
• one Velcro fastener
• one user’s manual in 5 languages,
• one certificate of verification.

ACCESSORIES
Carrying bag 120 x 200 x 60 mm Multi-function belt clip

REPLACEMENT PARTS
Set of 5 Velcro fasteners
For the accessories and spares, consult our website: www.chauvin- arnoux.com

References

• Untitled Document
• Allgemeine Geschäftsbedingungen | Chauvin Arnoux Metrix
• General Terms of Sale | Chauvin Arnoux Metrix
• Condiciones generales de venta | Chauvin Arnoux Metrix
• Conditions générales de vente | Chauvin Arnoux Metrix
• Condizioni generali di vendita | Chauvin Arnoux Metrix

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