GMI Personal Surveyor 200, User Handbook Manual, Page: 83 / 92

B-1
LEL SENSOR TYPES
There are three LEL sensor types available for the PS200 instrument.
The following table shows the benefits of each sensor and the
combustible gases the sensors will detect:
B
LEL
Sensor
Benefit Gases Detected Certification
Gas Groups
Division / Zone
Standard
Filtered
Part No -
66725
Detects
most
combustible
gases
C1 - C8 Hydrocarbons
Includes but not
limited to: Methane,
Ethane, Propane,
Butane, Pentane,
Hexane, Heptane,
Octane & Hydrogen
IIC
A,B,C & D
Class I, Div 1,2
Zones 1,2
Enhanced
Filtered
Part No -
64825
Enhanced
H2S and
Silicone
poisoning
resistance
C1 - C6 Hydrocarbons
Includes but not
limited to: Methane,
Ethane, Propane,
Butane, Pentane,
Hexane & Hydrogen
IIC
A,B,C & D
Class I, Div 1,2
Zones 1,2
Low
Power
Part No -
66750
Improved
battery life
C1 - C5 Hydrocarbons
Includes but not
limited to: Methane,
Ethane, Propane,
Butane, Pentane
IIB
C & D
Class I, Div 1,2
Zones 0,1,2
Warning: PS200 instruments fitted with the low power LEL sensor
cannot be retrofitted with standard or enhanced filter LEL
sensors and vice versa.