2 Important Notices on Safety
2-4. Safety information
SD-1DGH
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2-4. Safety information
Observe the followings to maintain an explosion-proof system.
<Overseas Specifications>
Outline of the product
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This detector is a fixed type gas detector head that detects leak of combustible/toxic gases and
performs the alarm activation when the gas concentration is over the setting value.
The detector is a safety unit, not an analyzer or densitometer which performs
quantitative/qualitative analysis/measurement for gases. Please fully understand the features of
the detector before using it, so that it can be used properly.
•
The detector detects abnormalities in the air caused by presence of gases or other reasons
(leak) with the built-in gas sensor. The concentrations of detected gases are displayed on the
seven-segment LED.
•
The detector has a built-in alarm contact and can be used either as a gas alarm, fault alarm, or
common (gas, fault) alarm.
•
The detector outputs gas concentration in 4 – 20 mA.
Technical data
Explosion-proof
structure
Flame-proof
enclosures
"d"
Certificate numbers
IECEx KEM 10.0036X
KEMA
10ATEX0083
X
Group
II
Category
2G
Explosion-proof
class
Exd
IICT5
Protection
level
(EPL)
Gb
Ambient temperature
-20ºC to 60ºC
Rating
Power voltage: 24 VDC (Typ.)
Output signal: 4 - 20 mA
Applied standards
IEC 60079-0:2007, IEC 60079-1:2007
EN 60079-0:2009, EN 60079-1:2007
System configuration
Manufacturer
RIKEN KEIKI CO., LTD.
2-7-6 Azusawa, Itabashi-ku, Tokyo, 174-8744 Japan
Web site: http://www.rikenkeiki.co.jp/english
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Hazardous location
(Zone1)
Gas detector head (SD-1DGH)
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→
Installation diagram
Signal
Signal
CVVS Cable
Display
Non-hazardous location
