C.A 1871 - Multimeter CHAUVIN ARNOUX - Free user manual and instructions

USER MANUAL C.A 1871 CHAUVIN ARNOUX

Close-up of a black handheld electrical clamp with yellow and red terminal connectors (no visible text or symbols)

FRANÇAIS ENGLISH DEUTSCH ITALIANO ESPANOL

Meaning of the symbol Warning! Please refer to the User's Manual before using the instrument. In this User's Manual, the instructions preceded by the above symbol, should they not be carried out as shown, can result in a physical accident or damage the instrument and the installations.

Meaning of the symbol

Laser radiation, do not look into the LASER beam.

LASER output < 0.5mW.

Class II LASER, as per IEC 60825 standard.

Thank you for purchasing this C.A. 1871 infrared temperature sensor.

To get the best service from this instrument:

■ read this user's manual carefully,

■ respect the safety precautions detailed

PRECAUTIONS FOR USE

■ Do not place the sensor on or close to objects with temperatures of >65^ / 150^
If the sensor is subjected to strong ambient temperature variations, wait 20 minutes after stabilization before resuming measurement.
■ Do not direct the LASER beam towards your eyes.
■ Comply with the environmental conditions (see § 5)
- Keep the lens perfectly clean

WARRANTY

Our guarantee is applicable for twelve months after the date on which the equipment is made available (extract from our General Conditions of Sale, available on request).

CONTENTS

1. PRESENTATION 9
2. OPERATION - EMISSIVITY 9
3. DESCRIPTION 9
4. USE 10
5. SPECIFICATIONS....11
6. MAINTENANCE 12
7. TO ORDER 12
8. APPENDIX 29

1. PRESENTATION

The C.A 1871 infrared temperature sensor is a temperature measuring tool that does not require contact and is used connected to an mV calibre multimeter with a 10MΩ input impedance.

To measure the temperature of an object, simply point the probe at the surface of the object and the sensor will give out a voltage signal proportional to the temperature measured.

2. OPERATION - EMISSIVITY

All objects whose temperature is higher than absolute zero (-273,15 K) emit infrared energy. This energy radiates in all directions at the speed of light.

When you point the probe at an object, the probe's lens senses this energy and focuses it onto an infrared detector constituted by a stack of thermocouples. This detector transmits a voltage signal proportional to the amount of energy received, which means that it is proportional to the object's temperature.

Certain objects emit infrared energy but also reflect it. Unlike matt surfaces, shiny or highly-polished surfaces tend to reflect energy. This reflection is represented by a factor called emissivity which may vary from 0.1 for a highly reflective object to 1 for a black object.

In the case of the C.A 1871 probe, the emissivity is preset at 0.95, the most frequent value, enabling approximately 90% of applications to be covered.

3. DESCRIPTION

See § 8. Attachment (at the end of this user's manual)

① Infrared measurement sensor
② Connecting lead with two ∅ 4mm safety plugs
③ Battery status indicator: on → low

off → status OK

④ Measurement activation pushbutton

Note: If a button is pressed and the indicators are not lit, the battery is either missing or not functioning correctly.

4. USE

4.1 Procedure

1. Plug the connecting lead ④ into a digital multimeter (preferably), choose the setting which allows the temperature to be read off directly, given that the temperature sensor gives out a voltage of 1 mV/°C
2. Point the sensor towards the target to be measured and press on the button ④ (see § 4.2).
   As long as the button is held down, the sensor will continue to measure the temperature.
3. Record the temperature on the multimeter, taking into account the transformation ratio sensitivity 1mV/°C.

Technical diagram of a digital multimeter with labeled components and connected wiring, showing measurement setup and terminal connections.

4.2 Precautions for measurement

If the surface to be measured is ≤ ∅ 50cm, hold the probe as close as possible to the surface (less than 50cm away) (see § 4.3)
If the surface to be measured is covered in frost or other particles, clean it so that the surface is clear before taking a measurement.
■ If the surface to be measured is highly reflective, stick matt tape or apply matt paint to the surface before measuring.
If the sensor appears to be giving incorrect indications, check the condition of the lens of the measuring orifice, since it may be obscured by condensation or particles. If so, clean it by carefully following the instructions in § 6.3 Upkeep.

4.3 Ratio between distance from target / diameter of measurement field

This ratio, also called the field of vision, indicates the diameter S of the measurement field at a given distance D from the target (see figure below).

Diameter of measurement field : D/S = 8/1

Ø25 200 Ø50 400 Ø100 800

Distance from target

In the case of small measurement points; it is important to bring the probe sufficiently close to the target to avoid including other points in the measurement field.

5. SPECIFICATIONS

■Measurement range: -30 to +550°C
■ Resolution: depending on the multimeter
■ Accuracy: ±2% ±2°C of the reading
■ Spectral response: 6 to 14μm
■ Emissivity: preset at 0.95
■ Output voltage: 1mV/°C
■ Response time: 0,5sec
■ Utilisation environment

0 to +50°C < 80% RH

■ Storage environment

-20°C to +60°C, 0 to 80% RF, without battery

■Power supply:9V battery

■ Dimensions / Weight

164 x 50 x 40mm / 182g with batteries

■ Electromagnetic compatibility

NF EN 61326-1

6. MAINTENANCE

For maintenance, use only specified spare parts. The manufacturer will not be held responsible for any accident occurring following a repair done other than by its After Sales Service or approved repairers.

6.1 Upkeep

6.1.1 Changing the battery

■ Remove the cover at the back of the instrument
■ Replace the old battery with a 9V battery

6.2 Operating test

For a quick check that the temperature sensor is functioning correctly, point the lens at water with ice cubes in it, since this provides a simple reference for 0^ C ( 32^ F).

6.3 Cleaning the lens

■ Remove dust using a clean rubber dust-removing bulb
■ Carefully remove any remaining particles using a clean, soft cloth
■ Carefully clean the lens with a damp, soft cloth and leave to dry.
Do not use solvents

6.4 Cleaning the housing

Clean the unit with a cloth and a little soapy water. Clean off with a damp cloth.

Do not use solvents.

6.5 Metrological Checks

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.

6.6 Repairs

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

6. TO ORDER

C.A 1871 P01651610Z

Comes with a 9V battery and these operating instructions.

Deutsch

Technical diagram of a digital multimeter with labeled components and connection wiring, alongside a remote control device.

Technical diagram of a digital multimeter with labeled components and wiring, showing front panel and side view.

Technical diagram of a digital multimeter with connected device and power supply, showing front panel, dial, and terminal connections.

Unit 1 Nelson Court - Flagship Square

Shaw Cross Business Park

Dewsbury, West Yorkshire - WF12 7TH

Tel:[phone] - Fax:[phone]

MIDDLE EAST - Chauvin Amoux Middle East

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

LEBANON

Tel: [phone] - Fax: [phone]

CHINA - Shanghai Pu-Jiang

Enerdis Instruments Co. Ltd

3 F, 3 rd Building - N° 381 Xiang De Road

200081 SHANGHAI

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