ENMET PGD2 - Manual (Page 7)

ENMET Corporation PGD2
4
5.2 General Description
The PGD2 is an intrinsically safe portable multi-gas instrument for use in Group IIC potentially explosive atmospheres. The instrument
is intended to be used for the protection of personnel entering or working in an environment where a gas hazard may, or is known to
exist.
The instrument produces both an audible and visual alarms if any of the monitored gas levels fall outside pre-set limits.
It can be fitted with up to 4 gas sensors in various combinations of flammable, toxic and oxygen to provide simultaneous monitoring of
each gas. The data logging facilities available within the instrument allow the exposure levels for each gas to be stored for
downloading to a personal computer at the end of the work period. The instrument also automatically calculates the STEL and TWA
values.
Pumped versions are available at additional cost.
Note: The Model
PGD3-IR Portable Gas Detector is also available. This instrument uses the latest technology miniature
infrared gas sensors for the detection of a wide range of hydrocarbon gases and carbon dioxide. Infrared gas sensors offer
several advantages including immunity to ‘poisoning’, fail-safe operation and a longer operating life.
Figure 1 - Front View of Portable Gas Detector with Case Removed
Figure 2 - Top View Showing Lens Keypad and Certification Data
Front Panel
Keypad
Lens
Gas Inlet
LCD Display
Gas Inlet