ENMET PGD2 - Manual (Page 4)

ENMET Corporation PGD2
1
FLAMMABLE INSTRUMENTS ONLY
CAUTION: ANY RAPID UP-SCALE READING FOLLOWED
BY A DECLINING OR ERRATIC READING MAY INDICATE
A GAS CONCENTRATION BEYOND UPPER SCALE LIMIT
WHICH MAY BE HAZARDOUS.
1 W ARNING N OTICES
1.1 Sensor “Poisoning”
Silicone based lubricants, corrosion inhibitors and water repellents must not be used in close proximity to the sensors. Such
compounds may poison the flammable sensors (pellistors) resulting in a loss of sensitivity.
This poisoning effect is common to all catalytic sensors.
1.2 Battery Charging, Calibration & Testing
Equipment used for charging, calibration and testing of the Portable Gas Detector must be located outside a hazardous area i.e. in an
atmosphere where it is known that there is no risk of the presence of combustible gas.
1.3 Electrostatic Hazard
The blue plastic instrument case and red lens must only be cleaned in a safe area.
1.4 Battery Disposal
Rechargeable battery packs or individual cells must be disposed of via an appropriate battery recycling scheme.
1.5 Disposal of Gas Sensors
The toxic and oxygen sensors used in the PGD2 contain toxic compounds. They should be disposed of according to local waste
management requirements and environmental legislation. They should not be burnt since they may emit toxic fumes.
Flammable sensors do not represent a hazard.
1.6 Electromagnetic Compatibility
The PGD2 Portable Gas Detector and associated equipment complies with the current European standards for both electromagnetic
emissions and immunity. However, this does not imply that the apparatus will be immune from interference under all operational
conditions and may exhibit temporary instability if exposed to high levels of interference for example, when in very close proximity to a
mobile phone transmission.
1.7 Rapid Reading Changes
2 C ERTIFICATION D ATA
The Portable Gas Detector Model PGD2 is Baseefa ATEX certified for use in Group IIC potentially explosive atmospheres under the
following certificate number: -
Certificate No. Baseefa 03ATEX0235X
2.1 Special Conditions for Safe Use
The above certificate specifies the following conditions for safe use:-
1. The rechargeable battery pack Type PGD/BATT may only be recharged in the safe area.
2. The enclosure is manufactured from plastic and has a surface resistivity of greater that 1 Gohm and therefore poses a risk
from electrostatic ignition. The rubber boot is to be fitted to the apparatus. By virtue of its shape and design, the apparatus is
not considered to be an electrostatic risk; however, the apparatus must not be installed in a position where it may be
subjected to an excessive air/fluid flow or be subjected to rubbing that may cause an electrostatic build-up.
3. The apparatus is not designed for use in oxygen enriched atmospheres i.e. greater than 21% oxygen.