C.A 742 - Measuring equipment CHAUVIN ARNOUX - Free user manual and instructions

USER MANUAL C.A 742 CHAUVIN ARNOUX

Diagram of a handheld device with labeled parts and a hand pointing to the component, showing a test tube and control panel.

Diagram showing electrical testing setup with labeled components and a hand pointing to a device with a red cross symbol.

Diagram showing a device with a circular connector and internal wiring, labeled with symbols like 'q1' and '...'

Diagram showing a plug with three pins and a device with a highlighted internal component, annotated with red arrows and symbols.

2.6. POINTES DE TOUCHE IP2X

Illustration of two hands using a Bunsen burner to test a flame, showing the bulb and flame (no text or symbols present)

3. CARACTÉRISTIQUES

3.1. CONDITIONS DE RÉFÉRENCE

Dimensions (L x l x P) 163 x 64 x 40 mm

Masse environ 210 g

Thank you for purchasing a C.A 742 or a C.A 742 IP2X voltage detector.

For best results from your instrument:

■ read these operating instructions 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.

Equipment suitable for live work.

Battery.

Earth.

The CE marking indicates conformity with European directives, in particular LVD and EMC.

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 2002/96/EC. 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.

Example: power feeders, counters and protection devices.

■ Measurement category III corresponds to measurements on building installations.

Example: distribution panel, circuit-breakers, machines or fixed industrial devices.

■ Measurement category II corresponds to measurements taken on circuits directly connected to low-voltage installations.

Example: power supply to domestic electrical appliances and portable tools.

PRECAUTIONS FOR USE

This device is protected against voltages up to 600V with respect to earth in measurement category IV.

The protection provided by the device may be compromised if it is used other than as specified by the manufacturer and so endanger the user.

• Do not exceed the maximum rated voltage and current and the measurement category. Do not use your instrument on networks of which the voltage or category exceeds those stated.
  ■ Comply with the conditions of use, namely the temperature, the humidity, the altitude, the degree of pollution, and the place of use.
  ■ When handling the test probes, keep your fingers behind the physical guard.
  ■ Use connection accessories of which the measurement category and service voltage are at least equal to those of the device.
  ■ Do not use the device if it is open, damaged, or poorly reassembled, or its accessories if they seem to be damaged.
  ■ The device must be kept clean so that the condition of the cable insulators, housing, and accessories can be checked. Any component whose insulator is damaged (even partially) must be sent for repair or scrapped.
  ■ The device is designed to be used by qualified personnel and in compliance with national safety rules.
  ■ We recommend wearing personal protective equipment when the environment in which the device is used makes it necessary.
  ■ All troubleshooting and metrological checks must be done by competent, accredited personnel.

CONTENTS

1. Presentation......22
2. Use....25
3. Characteristics .... 32
4. Maintenance ....35
5. Warranty ....36
6. To order ......37

1. PRESENTATION

1.1. C.A 742

Red test probe. Black lead terminated by a test probe. Connection terminals. 600V CATIV 230 400 750 DC 690 AC 127 50 24 12 VAC DC Bargraph. Phase indicator. Hazardous voltage indicator. Polarity indicator. CHAUVIN G.A 742 AUTO TEST D D_T 44T Self-test button. Continuity button. Detachable strap.

1.2. ON THE BACK

When the device is not in use, the test probes can be stowed on the back.

Removable protective caps. Red test probe. Guards. Black test probe. Battery compartment cover.

1.3. C.A 742 IP2X

See §2.6.

1.4. FUNCTIONS

The C.A 742 is a Voltage Detector with indicator lights.

It complies with the requirements of standard IEC 61243-3.

The main function of the C.A 742 is to test for the absence of any voltage. It detects hazardous voltages, meaning voltages exceeding the ELV (extra low voltage: 50 VAC or 120 VDC), even if its batteries are low or missing.

Its other functions are:

■ Indication of a voltage between 12 and 690 VAC or 750 VDC, with indication of the polarity.

■ Continuity indication.

■ Indication of the phase position.

The voltages indicated on the C.A 742 are nominal voltages. Make sure that the device will be used on networks at standardized voltages.

2. USE

This device is a detector. The indications it provides must not be used for measurement purposes.

2.1. SELF-TEST

Before using the C.A 742, perform a self-test. This checks the integrity of the leads, the proper operation of the electronic circuit, and the battery voltage.

Connect the red test probe to the + terminal and the black lead to the COM terminal.

Touch the 2 test probes together and press the AUTO TEST button. Press for as long as necessary.

Diagram illustrating a laboratory setup with a syringe and test tube, showing a hand interacting with a device displaying data points.

If all of the indicators of the device except ELV light and the audible signal sounds, the device is working properly and can be used.

600V CAT IV + - COM 690 AC 750 DC 127 400 Ph ELV V AC DC + - 12 50 230 127 24

■ If every other indicator lights, the batteries must be replaced (see §4.2).

600V CAT IV + - COM 690 AC 750 DC 127 230 400 Ph HV VAC DC 50 24 12

If every third indicator is off, there is a problem with the leads. Check that they are correctly connected and that they are actually touching, then press the AUTO TEST button again. If the problem persists, the lead and/or the test probe must be replaced.

600V CAT IV + - COM 690 AC 750 DC 400 127 50 230 24 12 VAC DC Ph ELV +~-

If no indicator lights, replace the batteries (see §4.2). If the problem persists with new batteries, the device is defective and must be sent in for repair (see §4.4).

After each check, perform a self-test in order to confirm the proper operation of the device.

In a noisy environment, make sure that you can in fact hear the audible signal emitted by the device.

Remark: If the AUTO TEST button is kept pressed for more than 10 seconds when the test probes are not touching each other, the device switches to standby.

2.2. VOLTAGE DETECTION

Connect the red test probe to the + terminal and the black lead to the COM terminal.

Keep your hands behind the guards of the device and of the test probe.

Position beyond which your hands must not go.

Diagram showing a soldering or testing device with labeled components and red arrows indicating flow or direction.

Place the test probes on the element to be tested and maintain a firm contact.

There is no need to switch the C.A 742 on, because it starts up automatically.

If the voltage present is:

■ AC, the indicators light to indicate its value and the + (green) and - (orange) indicators light.

600V CAT IV + - COM 690 AC 750 DC 400 230 127 50 24 12 Ph ELV VAC DC

■ DC, the indicators light to indicate its value and the + indicator (green) or the - indicator (orange) lights to indicate the polarity.

600V CAT IV + - COM 690 AC 750 DC 230 400 127 50 Ph ELV V AC DC 12 24

■ hazardous (>50 Vac or 120 Vdc): the higher the voltage, the faster the ELV indicator (red) flashes; the device also emits audible beeps.

ELV: Extra Low Voltage. This redundant indicator indicates that the voltage is greater than the ELV.

The first two indicators of the bargraph are green to indicate that the voltage is not hazardous and the device does not beep. The remaining indicators are red and the device beeps.

If only the ELV indicator lights, the batteries are low or missing.

600V CATIV + - COM 230 400 690 AC 750 DC 127 50 Ph LV VAC DC 12 24

If there is a voltage near the element being tested, the device may indicate the presence of an operating voltage on the element being tested.

2.3. CONTINUITY DETECTION

Connect the red test probe to the + terminal and the black lead to the COM terminal.

Keep your hands behind the guards of the device and of the test probe.

If the device has been left unused for more than 10 minutes or has been set to standby, first perform a SELF-TEST in order to switch it to hot standby.

Place the test probes on the element to be tested and maintain a firm contact.

Diagram showing electrical testing setup with labeled components including probes, a switch, and a hand pointing to a device with color-coded zones.

Keep the Ω ●●● button pressed.

If no voltage is detected, the C.A 742 performs a continuity test.

If the resistance is below the continuity threshold, indicators 12 to 230 flash one after another. The device emits a continuous audible signal.

600V CAT IV + - COM 230 400 690 AC 750 DC 127 50 Ph ELV VAC DC +~-

If the resistance is above the continuity threshold, the device displays nothing and does not emit a sound.

2.4. PHASE DETECTION

The C.A 742 performs a unipolar phase detection. This means that connecting a single test probe is enough to determine whether a phase is present.

To operate correctly, the phase detection function must be used on networks referred to earth.

It can be used, for example, to locate the phase on an outlet.

Connect the red test probe to the + terminal

Keep your hands behind the guards of the device

Place the test probes on the element to be tested and maintain a firm contact.

Diagram of a medical device with labeled components and connections, including a circle connected to a connector and a device labeled 'aT'.

If the test probe is in fact on the phase, the Ph (phase) indicator flashes and the device beeps.

800V CAT IV + - COM 690 AC 750 DC 230 400 127 50 Ph ELV VAC DC + - 12

Warning: if the Ph indicator is not flashing, that does not mean that there is no hazardous voltage on the outlet.

2.5. USING THE C.A 751 (OPTION)

If you have purchased a C.A 751 2P+T adapter, you can test for the absence of voltage between the phase and neutral on an outlet.

Attention: Pairing the C.A 742 with the C.A 751 derates the combined product to measurement category II, 250V.

Connect the C.A 751 to the terminals of the C.A 742, then refer to the operating instructions of the CA.751.

Diagram showing a plug-in socket connected to a device with internal components and a warning label in Chinese.

2.6.IP2X PROBE TIPS

Leads with IP2X probe tips are supplied with the device either as standard (C.A 742 IP2X) or as an option (C.A 742), depending on the model ordered.

IP2X accessories contribute to safety. These accessories are mandatory in some countries.

Clip the red probe tip to the back of the device and hold the black probe tip in your hand.

Black probe tip. Triggers. Red probe tip. Where to press to unlock the protection.

To unl wh in tes

To perform a test, press the trigger. That unlocks the protection of the probe tip, which can slide. You can then insert it in an outlet or touch the object to be tested with it.

To use the device, hold it in your hand while pressing the trigger of the red probe tip with your index finger. Hold the black probe tip in your other hand while pressing the trigger with your thumb.

Illustration of two hands holding test tubes, one with a lit candle and the other with a digital thermometer (no text or symbols present)

3. CHARACTERISTICS

3.1. REFERENCE CONDITIONS

Quantity of influence Reference values
Temperature 23±5°C
Relative humidity 30 to 75 % HR
Supply voltage 3±0,1V
Frequency of the measured signal	DC or 45 to 65 Hz
Type of signal sinusoidal
External electric field <1V/m
DC external magnetic field <40A/m

3.2. ELECTRICAL CHARACTERISTICS

3.2.1. VOLTAGE

Nominal voltages: 12, 24, 50, 127, 230, 400, 690 VAC/VDC and 750 VDC.

Frequency of operation: DC and 16.67 at 800Hz.

Maximum input current: 3.5 mArms.

Input impedance >300kΩ.

Response time <500ms.

The indicator corresponding to voltage V lights before the voltage reaches 85% V.

If no indicator lights, the voltage present is < 12V.

The C.A 742 must be used only on networks at standardized voltages.

Operating cycle: 30s (maximum duration for which the device can remain connected to a live element) - 240s (minimum resting time during which the detector must not be connected to a live element).

3.2.2. CONTINUITY

Continuity detection is disabled if a voltage > 1V is present. Triggering threshold between 100Ω and 150Ω.

Test current ≤1mA

Open-circuit voltage ≤3.3V

3.2.3. PHASE IDENTIFICATION

15Hz<frequency<65Hz

50 VAC<voltage<690 VAC and 45Hz<frequency ≤65Hz

150 VAC<voltage<690 VAC and frequency<45Hz

3.3. ENVIRONMENTAL CONDITIONS

The device is of type N. It must be used under the following conditions:

1: Reference domain
2: Operating range

-15 to +45°C and 20 to 95% RH without condensation. (35°C max. at 95% RH)

3: Range in storage (without batteries)

-40 to +70°C and 20 to 95% RH without condensation.

If an extended period of non-use is anticipated, or for storage, withdraw the batteries from the housing.

For use indoors and outdoors without rain.

Pollution degree: 2.

Altitude: <2000m.

3.4. ALIMENTATION

The C.A 742 is powered by two 1.5V alkaline batteries (type AAA or LR3).

The battery life is 7,000 10-second measurements.

The batteries can be replaced by rechargeable batteries, but the life between charges will be much shorter.

3.5. CHARACTERISTICS OF CONSTRUCTION

Dimensions (LxWxH) 163 x 64 x 40mm

Weight approximately 210g

Cord length 90cm

Protection class IP65 per IEC 60529

IK04 per IEC 50102

Drop 2 metres

3.6. COMPLIANCE WITH INTERNATIONAL STANDARDS

Two-pole voltage detector per IEC 61243-3 ed. 2 of 2010.

The device is in conformity with IEC-61010-1 600V, CAT IV.

3.7. ELECTROMAGNETIC COMPATIBILITY

Emissions and immunity in an industrial setting compliant with IEC 61326-1.

4. MAINTENANCE

Except for 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.

4.1. CLEANING

The device must be kept perfectly clean.

Disconnect the instrument completely.

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.

4.2. REPLACEMENT OF BATTERIES

If, during the self-test, only half of the indicators light, you must replace the batteries.

■ Disconnect anything connected to the device.
■ Using a screwdriver, unscrew the two captive screws of the battery compartment cover located on the back of the device.
■ Withdraw the spent batteries and replace them with two new batteries (AAA or LR3 1.5V alkaline batteries).
■ Close the battery compartment cover and make sure that it is completely and correctly closed.
■ Screw the two screws back in.

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

4.3. METROLOGICAL CHECK

Like all measuring or testing devices, the instrument must be checked regularly.

This instrument should be checked at least once a year. For checking and calibration, contact one of our accredited metrology laboratories (information and contact details available on request), at our Chauvin Arnoux subsidiary or the branch in your country.

4.4. REPAIR

For all repairs before or after expiry of warranty, please return the device to your distributor.

5. WARRANTY

Except as otherwise stated, our warranty is valid for twelve months starting from the date on which the equipment was sold. Extract from our General Conditions of Sale provided on request.

The warranty does not apply in the following cases:

■ Inappropriate use of the equipment or use with incompatible 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.

6. TO ORDER

C.A 742 voltage detector ......P01191742Z

Delivered in blister pack with:

■ one red test probe 2mm in diameter,
■ one black lead terminated by a test probe 2mm in diameter,
■ one strap,
■ two AAA or LR3 alkaline batteries,
■ one user's manual in 5 languages,
■ one verification certificate.

C.A 742 IP2X voltage detector ....P01191742B

Delivered in blister pack with:

■ one 90cm black lead and one 25cm red lead terminated by an IP2X probe tip 4mm in diameter,
■ one strap,
■ two AAA or LR3 alkaline batteries,
■ one user's manual in 5 languages,
■ one verification certificate.

6.1. ACCESSORIES AND OPTIONS

One red test probe 2mm in diameter ..... P01102008Z

Black lead with test probe 2mm in diameter.... P01102009Z

Black and red leads 1.5m long with IP2X probe tips 4mm in diameter..... P01295462Z

Black and red leads 1.5m long with IP2X probe tips 2mm in diameter..... P01295463Z

Black lead 90cm long and red lead 25cm long with IP2X probe tip 4mm in diameter.....P01295285Z

Carrying bag.... P01298012

C.A 751 2P+T adapter P01101997Z

Diagram showing a hand operating a soldering iron with a digital display and control panel, labeled with Chinese characters.

Diagram illustrating electrical testing setup with labeled components including probes, a switch, and a device with a hand pointing to a detection area.

Diagram of a medical or laboratory device with labeled components and connections, including a circular connector and internal components.

Diagram showing a plug-in socket connected to a device with labeled components and directional arrows indicating flow or movement.

Di vc So ge Nu bz br

Illustration of two hands holding test tubes, one with a lit candle and the other with a digital thermometer (no text or symbols)

3. TECHNISCHE DATEN

3.1. REFERENZBEDINGUNGEN

1: Referenzbereich

2: Funktionsbereich

Adapter 2Ph+N, C.A 751 P01101997Z

Illustration of a hand operating a soldering iron on a device with a magnified view (no text or symbols)

Diagram illustrating electrical circuit testing setup with labeled components and a hand pointing to a device.

Diagram of a medical or laboratory device with labeled components and internal components, including a circular connector and a highlighted section.

Diagram showing a plug-in socket connected to a device with internal components and a warning label in Chinese.

Illustration of two hands holding test tubes, one with a lit candle and the other with a digital thermometer (no text or symbols present)

3. CARATTERISTICHE

Diagram showing a hand operating a tool with a magnified device displaying data points and a yellow highlight, likely illustrating a scientific or analytical setup.

Diagram showing electrical testing setup with labeled components including probes, a switch, and a meter with a hand pointing to a component.

Diagram of a medical or laboratory device with labeled components and internal features

Diagram showing a plug-in socket connected to a device with internal components and a color-coded thermal or voltage gradient indicator.

2.6. PUNTAS DE PRUEBA IP2X

Illustration of two hands using a Bunsen burner to test a flame, showing the bulb and flame (no text or symbols present)

3. CARACTERÍSTICAS

3.1. CONDICIONES DE REFERENCIA

Unit 1 Nelson Ct - Flagship Sq - Shaw Cross Business Pk

Dewsbury, West Yorkshire - WF12 7TH

Tel: [phone] - Fax: [phone]

MIDDLE EAST - Chauvin Arnoux Middle East

P.O. BOX 60-154 - 1241 2020 JAL EL DIB (Beirut) - LEBANON

Tel: [phone] - Fax: [phone]

申国 = 上海浦江埃纳迪斯仪表有限公司

上海市虹口区祥德路381号3号楼3楼

Tel: [phone] - Fax: [phone]

USA - Chauvin Arnoux Inc - d.b.a AEMC Instruments

200 Foxborough Blvd. - Foxborough - MA 02035

Tel: [phone] - Fax: [phone]

http://www.chauvin-arnoux.com