Ecom Ex-MX2 Instructions d'installation

Safety instructions

Ex-MX2

Table of contents Page

1.Application 23

2.Safety instructions 23

3.Errors and load restrictions 23

4.Safety regulations 23

4.1 Special conditions for use in Zone 0 areas 24

5.Safety instructions 24

6.Ex data 24

7.Technical data 24

8.Functional description / operating information 26

8.1 Operation 26

8.2 Overview 26

8.3 Display screen 27

8.4 Settings 27

8.4.1 Emissivity 28

8.4.2 Hl alarm 28

8.5 Measurement 28

8.5.1 Laser sighting 28

8.5.2 Optical diagram 29

8.5.3 Field of view 29

9.Changing the battery 29

10. Troubleshooting 30

11. Repairs 30

12. Cleaning, maintenance and storage 30

13. Disposal 30

14. Warranty and liability 31

15. EC Declaration of conformity 33

16. EC-Type Examination Certificate 34

Note:

The current operating instructions, EC Declaration of Conformity and the Ex-certificate

are available for download from the relevant product page under www.ecom-ex.com;

alternatively they can be requested directly from the manufacturer.

1. Application

The Ex-MX2 is a contactless temperature measuring device designed for industrial use

in potentially explosive areas of Zones 2 and 1 in accordance with Directive 1999/92/

EC (ATEX 137).

2. Safety instructions

These operating instructions contain information and safety regulations that must be

followed to ensure safe and reliable operation of the unit under the described condi-

tions. Failure to follow the information and instructions can have dangerous conse-

quences or may contravene applicable regulations.

Please take the time to carefully read through the owner’s manual before you start

using the unit.

In the event of any doubt or discrepancies (for example, due to translation or printing

errors), the German version of these operating instructions shall prevail.

3. Errors and load restrictions

If there is any risk that the safety or integrity of the unit has been compromised, the

unit must be taken out of operation immediately and removed from the Ex-area without

delay.

Action must be taken to prevent the device from being accidentally placed into opera-

tion again.

We recommend sending the unit to the manufacturer to be examined.

The safety and reliability of the unit may be at risk if, for example:

- Damage is visible on the housing

- The unit has been subjected to excessive loads for which it is not designed

- The unit has been improperly stored

- The unit has been damaged in transit

- Labels or markings on the unit are illegible

- Malfunctions occur

- Obvious measuring inaccuracies occur

- no more measurements are possible with the device

- Permitted tolerances or threshold values have been exceeded

4. Safety regulations

Persons using the unit must observe the standard safety regulations and read the

certificate to prevent incorrect operation or misuse of the unit.

The following additional safety regulations must also be observed:

- The unit must not be opened within the Ex-area.

- The batteries must only be changed outside the Ex-area.

- Additional or spare batteries must not be carried in the Ex-area.

- Only approved battery types may be used.

- In potentially explosive areas, the device may only be operated in its leather pouch.

During use, always make sure that the leather pouch is completely closed and

undamaged.

- Only accessories approved by ecom instruments GmbH may be used.

- Avoid using the unit in aggressive acidic or alkaline solutions.

- Ensure that the unit is not taken into Zone 0 areas.

4.1 Special conditions for use in Zone 0 areas

Temperature measurement with the Ex-MX2 is only allowed within Zone 0 only if the

following conditions are met:

1. The Ex-MX2 temperature measuring device itself must not be brought into Zone 0.

2. Absolutely ensure that the device cannot fall into Zone 0, even by mistake. To ensu-

re this, the device’s carrying sling must also be attached securely to the operator’s

belt or to a belt loop.

The length of the carrying sling should be measured so that the Ex-MX2 still

maintains a distance of 50 cm to the boundary area of Zone 0 when it hangs freely

on the carrying sling.

Only the accessories approved by ecom instruments GmbH may be used.

5. Safety instructions

- Caution: laser beam!

- Do not look directly into the laser beam!

- Do not aim the beam at other people!

- Danger of eye damage!

- Laser class 2

- Power: < 1 mW

- Wave length: 635 nm

6. Ex data

EC-type examination certificate no.: TÜV 00 ATEX 1597 X

Ex designation: II 2 G EEx ia IIC T4

Approved for Zones 1 and 2, device group II, gas group C potentially explosive gases,

vapours or mist, temperature class T4.

7. Technical data

Measuring range: -30 ... +900 °C

Ambient temperature: 0 °C ... +50 °C; laser operation up to maximum +45 °C

Storage temperature: -20 °C ... +50 °C (without batteries)

Batteries / power supply: 2 x LR06 (AA) according to IEC

Emissivity: 0.10 ... 1.50 (0.95 preset)

Measuring spot marking: 3 point laser marking

Measuring spot size (distance / Ø): 60:1 at the focus point (1.15 m) and

35:1 in the far field (> 10 m)

Accuracy (25 °C): ± 0.75% of the measured value or ± 0.75K,

whichever is the larger value

(± 2K for measurement objects below -5°C)

Ambient derating (at 25 °C ± 25K): <0.05K/K or <0.05%/K, whichever is the

larger value

Reproducibility: ± 0.5% of the measured value or ± 0.5K,

whichever is the larger value

Spectral sensitivity: 8 ... 14 µm

Response time: 95 % after 250 ms

Relative humidity: 10% ... 95 % relative humidity at +30°C, non-

condensing

Dimensions: 200 x 170 x 50 mm

Weight: Approx. 450 g

CE designation: 0102

Manufacturer: Model (LR6):

Varta Alkaline No. 4806 LR6

Varta Alkaline Extra Longlife No. 4006

Varta Alkaline Maxi Tech No. 4706

Varta Alkaline Electric Power No. 8006

Varta LR6 High Energy No. 4906

Duracell Alkaline

Duracell Ultra M3 MN1500 LR6

Duracell Plus MN1500 LR6

Duracell Procell MN1500 LR6

Panasonic Alkaline Power Line Industrial Battery LR6

Panasonic Powermax 3 LR6

Energizer Energizer No. E91

GP Super Alkaline Battery 15A LR6

Daimon Alkaline

Rayovac Maximum Alkaline Battery

Double Lion King Alkaline Battery

RS Alkaline

8. Functional description / operating information

Please take the time to carefully read through these operating instructions to ensure

that you are familiar with and can use all the functions on your Ex-MX2. For your own

safety and information please read through the information on the following pages.

8.1 Operation

All objects with a temperature above absolute zero radiate infrared energy which spreads

in all directions at the speed of light. If an infrared thermometer is aimed at a measure-

ment object, the lens collects the energy and focuses it on an infrared sensor.

The sensor reacts by outputting a voltage signal which is directly proportional to the

absorbed energy. U(sing additional parameters, the microprocessor-controlled electro-

nics of the device are able to determine and display the current temperature. Measu-

rement objects with a shiny or polished surface do not only radiate energy but also

reflect a part of the radiation from their surroundings.

An emissivity factor between 0.1 and 1.5 takes account of this fact so that only the re-

ally radiated (and not the reflected) energy is included in the calculation of the measu-

red value. The majority of all applications are measured with emissivity of 0.95.

It is therefore preset to 0.95 in our machine and can be adjusted depending on the ap-

plication in steps of 0.01. The emissivity range greater than 1.00 is intended for applicati-

ons where measurement objects close to each other with different temperatures should

be measured. This is the case for example if there are two conveying lines with different

temperatures and the temperature of „the colder one“ of both should be measured.

The radiated reflected energy thereby would falsify the measurement so that a correct

result would be impossible. The temperature can now also be measured exactly using

the emissivity setting >1.00 by means of a one-time reference measurement with a

contact thermometer.

8.2 Overview

Sensor

Measurement

button

Changeover

switch

Display

Adjustment button

Rocker switch

ENTER key

Battery compartment with cover

8.3 Display screen

8.4 Settings

System settings can be fixed and activated with the switch panel.

Remove the leather pouch and open

the casing with the handle as shown.

Description:

Adjustment Standard Description

LOCK OFF Measuring remains active until the

measurement button is pressed again.

° C / °F OFF Changing the display between °C and

°F

Buzzer ON audible alarm

backlight OFF display lighting

Set Default OFF Activation of the factory defaults

Setup ON activates alarm value and emissivity

adjustment

Laserflash ON Laser flashing with Hl alarm

Laser ON Laser is switched on

Laser

Maximum setting

reached

Battery condition

Continuous measurement

Measured temperature

Bar display of the last 10

measured values

Emissivity

MIN/MAX display of the

last measurement

8.4.1 Emissivity

Most organic materials and lacquered and oxidised surfaces have an emissivity of 0.95.

The emissivity is preset to 0.95 in the Ex-MX2 for this reason, but can be changed with

the rocker switch.

The determination of the temperatures of shiny or highly polished metal surfaces pro-

duces inaccurate measured values. To compensate for this, the surface to be measu-

red can be covered with adhesive tape or painted matt black. Wait until the adhesive

tape is the same temperature as the material underneath it. Then determine the tempe-

rature of the adhesive tape (corresponds to the material) or the painted surface.

Aluminium* 0.30 Skin 0.98 Brass* 0.50

Asbestos 0.95 Wood*** 0.94 Oil 0.94

Asphalt 0.95 Limestone 0.98 Paper 0.95

Basalt 0.70 Ceramics 0.95 Sand 0.90

Concrete 0.95 Carbon 0.85 Dirt 0.94

Lead* 0.50 Copper* 0.95 Snow 0.90

Ice 0.98 Plastic** 0.95 Steel* 0.80

Iron* 0.70 Foodstuffs, 0.90 Textiles 0.94

Paint 0.93 frozen Water 0.93

Glass (plate) 0.85 Foodstuffs, 0.93 Bricks 0.90

Rubber 0.95 hot

*oxidised, **impervious to light, more than 50 µm, ***natural

8.4.2 Hl alarm

The Ex-MX2 provides an alarm function for exceeding defined temperature values. By

pressing the ENTER key, the alarm value can be set afterwards with the rocker switch.

The temperature values can be moved through in large steps by keeping the rocker

switch pressed. After confirming with the ENTER key, if the measured value is excee-

ded, an alarm signal sounds, the LED above the display lights and the laser marking

flashes. The default value is 50°C.

8.5 Measurement

The device is aimed at an object and the measurement button pressed to determine

the temperature. Remember to take account of the ratio of the distance to the spot size

(8.5.2 Optic diagram) and the field of view. The area of the surface measured by the

device increases as the distance between the device and the object increases.

8.5.1 Laser sighting

Laser sighting is part of the Ex-MX2, The laser sight allows very precise targeting and

is indispensable for sighting on small or far away objects. The 3 point laser marking

shows the exact size of the measuring spot. The equipment is equipped with a robust

solid-state laser which is installed inside the device.

Please read Section 5 Safety instructions carefully for information about laser warnings.

8.5.2 Optical diagram

Ø mm measuring spot 25 19 29 58 72

Distance m 0 1.15 1.50 2.50 3.00

8.5.3 Field of view

Ensure that the measuring object is larger than the size of the measuring

spot of the device. The smaller the measuring object the closer you

must approach the object. If the measurement accuracy is

crucially important, the measuring object should be at

least twice as large as the size of the measuring spot.

9. Changing the battery

If the battery is discharged and only a reserve operating time remains, the battery

symbol appears on the display. The battery should be replaced afterwards in order to

ensure safe operation.

The battery must only be changed outside the Ex-zone. When changing the battery,

it must be ensured that only the batteries listed in the operating instructions are

used. The use of other batteries is strictly forbidden.

You must remove the leather holster to open the battery

compartment. The battery compartment can now be opened.

Replace the used batteries and absolutely ensure that the

polarity is correct. After replacement, the leather holster

must be put on again as this is necessary for use in the

Ex-area.

- Always replace all of the batteries together.

- Make sure that the polarity of the inserted batteries is

correct.

- Please ensure that all used batteries are properly

disposed of in an environmentally friendly manner.

10. Troubleshooting

Code Fault Procedure

- O - Target temperature is abo-

ve the measuring range

Select target within the

range

- U - Target temperature is be-

low the measuring range

Select target within the

range

E-EPROM-Err E-EPROM fault Contact the manufacturer

CalAreaErr Calibration error Contact the manufacturer

ProbCalErr Calibration error Contact the manufacturer

Blank display Weak or empty batteries Replace batteries

Battery symbol is displayed Batteries are almost empty Check or replace batteries

Laser does not function Weak or discharged batte-

ries or ambient temperature

>+45 °C

Replace batteries, ensure

that ambient temperature

≤ +45 °C.

11. Repairs

Repair work is subject to the nationally valid regulations and directives. We therefore

recommend that such work be performed by ecom instruments GmbH, Germany, as all

repairs must be examined to ensure functional safety.

12. Cleaning, maintenance and storage

- Only use a suitable cloth or sponge to clean the unit. Do not use solvents or abrasive

cleaning agents, particularly the lens, for cleaning.

Cleaning the lens:

Blow off loose particles with clean air. Remaining contamination is then removed care-

fully with a soft brush. Wipe the surface carefully with a moist swab. The swab can be

moistened with water.

- We recommend having the function and the accuracy of the device checked by the

manufacturer every two years.

- The batteries should be taken out of the unit if it is to be stored for extended periods.

- The storage temperature should be within the permitted range of -20 °C to +50 °C

(without batteries).

13. Disposal

Old electrical equipment and „historic“ old electrical equipment from ecom instruments

GmbH will be disposal obligation and disposed of at no cost in accordance with the

EC Directive 2002/96/EC and the German Electrical and Electronic Equipment law of

16/03/2005. The costs of the transport of the equipment to ecom instruments GmbH are

borne by the sender.

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