GMI PS241 User Manual

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
Benet Gases Detected Certication
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 tted with the low power LEL sensor
cannot be retrotted with standard or enhanced lter LEL
sensors and vice versa.

GMI PS241 Specifications

General

Type	Pressure Switch
Protection Class	IP65
Power Supply	24 VDC
Contact Type	SPDT
Process Connection	G1/4"
Operating Temperature	-20...80°C