Safety Regulations; Special Conditions For Conducting Measurements In Zone 0; Safety Precautions; Ex-Data - Ega Master MasterEX EX-MP4 A Manuel D'instructions

Use of this unit assumes that the operator observes the conventional safety regulations and has read the certificate in order to eliminate
faulty operation of the unit.
The following safety regulations must also be complied with:
- The unit should not be opened inside the Ex-area.
- The battery should only be exchanged outside the Ex-area.
- Additional batteries must not be carried in the Ex-area.
- Only type-tested batteries should be used.
- The unit should only be operated in the explosive area while situated in the appropriate leather case 030280.
- Only accessories approved by the manfacturer may be used.
- Avoid use in aggressive acids or bases.
- It must be ensured that the unit is not taken into zone 0.
- The device is to be protected against water and dust ingress.
The MasterEx Ex-MP4 a should only be used to measure the temperature in zone 0 after consideration of the following conditions.
1. The MasterEx Ex-MP4 a itself should not be taken into the zone 0 area.
2. It is imperative to make sure that the unit is not able to inadvertently enter the zone 0 area either. To ensure this the MasterEx Ex-
MP4 a unit must be used with the corresponding wrist strap.
Only the manufacturer's wrist strap should be used.
- Caution! Laser radiation!
- Do not stare directly at the laser!
- Do not aim the unit at other people!
- Risk of eye damage!
- Laser class 2
- Power: < 1 mW
- Wavelength: 630 -670 nm.
EC type approval test certificate nº:
Ex-designation:
Approved for zone 1, device group II, gas group C (explosive gases, vapours or mist), temperature class T4.
Measuring range
Ambient temperature Ta
Storage temperature
Relative humidity
Emission level
Smallest display unit
Target sighting
Accuracy
(at 23°C)
Repeatability
Spectral response
Response time (95%)
Batteries / power supply:
-8-

4. Safety regulations

4.1. Special conditions for conducting measurements in zone 0

5. Safety precautions

EPS 10 ATEX 1 242 X
II 2 G Ex ia op is IIC T4

7. Specifications

-18 °C to + 400 °C
0 ... +50 °C
-20 °C to +65 °C
10- 95 % r.h. non-condensing at 30 °C
fixed at 0.95
0.2 °C
Laser
-18 °C ... -1°C ±3 °C
-1°C ... +400 °C : ±2 % of reading
or ±2 °C, whichever is greater
± 2 % of reading or ±2 °C
whichever is greater
7-18 µm
500ms
1 x 9V alkaline battery according to IEC 6LR61, type-tested

6. Ex-Data