E52
Pressure-resistant Explosion-proof (d2G4) Models
■ Thermocouples
Enclosed-terminal Models
Specifications
E52-CA@@C-6
Element type
Class
K (CA)
Dimensions
Class 2 (0.75)
L
115
Hexagonal slot, 22 between flats
L2
L1
Protective tubing
material
L2 section: SUS316
L1 section: SUS304
SUS316
Operating temperature
range (in dry air)
Sensor: −100°C to 900°C
Terminal: 0°C to 70°C
15 dia.
6.4 dia.
84 dia.
Explosion- Construction Pressure-resistant
SUS304
proof
explosion-proof structure
specifica-
tions
Explosion-
protected
class and
ignitability
d2G4
18
77
PF1/2
Lead wire
wiring
Metal conduit connected
with screws to terminal
box
Model
Protective tubing
length L (cm)
Protective
L2 (mm)
150
tubing diameter
D = 6.4
method
E52-CA20C-6 D=6.4 L2=150 20
E52-CA35C-6 D=6.4 L2=300 35
E52-CA50C-6 D=6.4 L2=450 50
E52-CA75C-6 D=6.4 L2=700 75
Conduit
thread
PF1/2
D = 6.4
300
450
700
D = 6.4
Installation Conforms to Technical
method
D = 6.4
Recommendations of the
Research Institute of
Industrial Safety (Japan)
■ Platinum Resistance Thermometers for Surface Temperature
Measurement
Enclosed-terminal Models
Specifications
E52-P@@C-6
Element type
Class
Pt100
Dimensions
Class B
L
115
Hexagonal slot, 22 between flats
L2
L1
Protective tubing
material
L2 section: SUS316
L1 section: SUS304
SUS316
15 dia.
Operating temperature
range (in dry air)
Sensor: −100°C to 500°C
Terminal: 0°C to 70°C
6.4 dia.
84 dia.
Explosion- Construction Pressure-resistant
SUS304
proof
explosion-proof structure
specifica-
tions
Explosion-
protected
class and
ignitability
d2G4
18
77
PF1/2
Lead wire
wiring
Metal conduit connected
with screws to terminal
box
Model
Protective tubing
length L (cm)
Protective
L2 (mm)
150
tubing diameter
method
E52-P20C-6 D=6.4 L2=150
E52-P35C-6 D=6.4 L2=300
E52-P50C-6 D=6.4 L2=450
E52-P75C-6 D=6.4 L2=700
20
D = 6.4
D = 6.4
D = 6.4
D = 6.4
Conduit
thread
PF1/2
35
50
75
300
450
700
Installation Conforms to Technical
method
Recommendations of the
Research Institute of
Industrial Safety (Japan)
25
OMRON [ OMRON ELECTRONICS LLC ]
