1 Product Description and detection principle
PG11 is an explosion proof rugged Optical Gas Detector for the detection of flammable gases
and CO
2
. The detector comes calibrated for life from the factory, and requires very little effort
to install and maintain.
The PG11 is built for long maintenance intervals in very demanding environments such as
extreme temperatures and tough vibrations. It has built in condition monitoring that enables
better maintenance planning and less risk of unplanned shutdowns.
In the figure below, the PG11 Optical Gas Detector has the following parts:
A. Multicolor indicator light.
B. Sapphire lens
C. Sapphire mirror with heating.
D. Mounting leg.
E. Two entries for cable glands M20. On request 1/2"NPT, 3/4"NPT and M25.
F. Cover terminal compartment.
G. Sign plates with certification details.
Document 022-80036-OM Revision R03 Page 5 of 48
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