2. Important Safety Information
2-4 Safety information
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<Explosion-proof performance data>
The range of ambient temperatures in which explosion-proof performance can be maintained will differ depending
on whether the optional lightning arrester is fitted.
Refer to the following performance data for each model:
<Without lightning arrester>
Model
Explosion-
proof
construction
Group
Category
Explosion-proof
class
EPL
Ambient temperature*
1
SD-3RI
d
II
2G
Ex db IIC T6/T5
Gb
-50 °C ≤ Ta ≤ +60 °C /+70 °C
SD-3DRI
GD-3RI
SD-3GH
d
II
2G
Ex db IIC T5/T4
Gb
-50 °C ≤ Ta ≤ +44 °C /+70 °C
SD-3DGH
GD-3GH
SD-3GHS
d
II
2G
Ex db IIC T6/T4
Gb
-50 °C ≤ Ta ≤ +47 °C /+70 °C
SD-3DGHS
GD-3GHS
SD-3NC
d
II
2G
Ex db IIC T5/T4
Gb
-50 °C ≤ Ta ≤ +44 °C /+70 °C
SD-3DNC
GD-3NC
SD-3SP
d
II
2G
Ex db IIC T5/T4
Gb
-50 °C ≤ Ta ≤ +55 °C /+70 °C
SD-3DSP
GD-3SP
SD-3EC
d
II
2G
Ex db IIC T4
Gb
-50 °C ≤ Ta ≤ +70 °C
SD-3DEC
GD-3EC
SD-3ECS
d
II
2G
Ex db IIC T4
Gb
-50 °C ≤ Ta ≤ +70 °C
SD-3DECS
GD-3ECS
SD-3ECB
d+i
II
2G
Ex db ia IIC T4
Gb
-40 °C ≤ Ta ≤ +70 °C
SD-3DECB
GD-3ECB
SD-3SC
*2
d
II
2G
Ex db IIC T6/T5/T4 Gb
-50 °C ≤ Ta ≤ +47 °C /+55 °C
+70 °C
SD-3SC
*3
d
II
2G
Ex db IIC T5/T4
Gb
-50 °C ≤ Ta ≤ +44 °C /+70 °C
SD-3SC
*4
d
II
2G
Ex db IIC T6/T5
Gb
-50 °C ≤ Ta ≤ +60 °C /+70 °C
SD-3SC
*5
d
II
2G
Ex db IIC T4
Gb
-40 °C ≤ Ta ≤ +70 °C
*1: The ambient temperature refers to temperatures in the range within which explosion-proof performance can be
maintained. It does not imply the temperature range within which the required product performance may be
achieved. For information on the operating temperature range, refer to ‘10-3 Detection target gases for individual
deterction principles’.
*2: When used in combination with GD-3GHS, GD-3SP, GD-3EC, and GD-3ECS
*3: When used in combination with GD-3GH and GD-3NC
*4: When used with the GD-3RI
*5: When used in combination with GF-3ECB
Содержание GD-3EC
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