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Transmitters

SD-1

The Model SD-1 series smart transmitter/ detector heads are sate of the art instruments housed in flameproof enclosure certified by ATEX. A simple Magnetic control Key is used to adjust and calibrate the instrument. Five different types of sensor can be used along with SD-1 to detect variety of Flammable, Toxic and Oxygen gases. SD-1 IR Type HS comes with HART output and is SIL2 compliant. Relay contacts for Alarms, Fault and 4-20 mA output is available standard in other models.

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Features
Applications
Approvals
Specification
Accessories

Explosion Proof Class Exd IIC T5
ATEX / IECx approval
EN60079-29-1, IEC60079-29-1 by TIIS
IP65/67 ingress class
4-20 mA linear output

Small, rugged, dust and weather proof construction
Electrical power saving (Maximum : 3W)
One man maintenance by Magnetic Key
Self diagnosis by microprocessor

LNG Terminal
Petro-refinery, Petrochemical Plants
Chemical Plants

Power Station, Gas Utilities
Iron and steel Works

ATEX, IECEx, CE, TIIS, PESO (CCOE)

Model	SD-1		SD-1D		SD-1D-AS		SD-1GH	SD-1DGH	SD-1DGH-AS
Type	Type GP	Type NC	Type GP	Type NC	Type GP	Type NC	-
Detection Principle	Catalytic Combustion	New Ceramic	Catalytic Combustion	New Ceramic	Catalytic Combustion	New Ceramic	Semiconductor
Measuring Gas	Combustible Gases						Toxic or Combustible Gases
Sampling Method	Diffusion		Sample Drawing (Remote sampling pump is required)		Air Aspiration		Diffusion	Sample Drawing (Remote Sampling pump is required)	Air Aspiration
Flow Rate	-		0.8~2.0L/min				-	0.8~2.0L/min
Measuring Range	0~100% LEL	0~100% LEL*	0~100% LEL	0~100% LEL*	0~100% LEL	0~100% LEL*	Refer to the list on the last page*
Display	7-seg digital LED (4 digits)
Alarm Setting	25%LEL (Standard)	25%LEL* (Standard)	25%LEL (Standard)	25%LEL* (Standard)	25%LEL (Standard)	25%LEL* (Standard)	depends on the gas
Alarm Delay Time	Approx 30 seconds when exposed to gas concentration of 1.6 times alarm level						Approx within 30 to 60 seconds when exposed to gas concentration of 1.6 times alarm level (depends on the gas
Output	Analog transmission (4-20mA), load resistance under 300 {2
Output	Gas concentration signal/alarm contact (gas alert or fail alert or gas' fail common alert)
Alarm Contacts	Normal open or normal close
Contact Capacity	30VDC 0.5V or 250VAC 0.5A (load resistance)
Applicable Cable	CVVS 1.25sq or 2.0sq 3-core or CWS 1.25sq or 2.0sq 5-core (when in contact use)
Signal Transmission Distance & Cable	MAX 1.25km with CVVS 1.25sq cable, MAX 2.0km with CVVS 2.0sq cable
Fail Alert Self Diagnosis	Circuit failure / Sensor failure
Fail Alert Display	Fail lamp (Yellow) / content indication
Power Source	24VDC (17VDC~26.4VDC) , consumed power approx 3W (MAX)						24VDC (17VDC~26.4VDC), consumed power approx 3.1W (MAX)
Operating Temperature & Humidity	-20~+60°C/ below 95%RH (non condensing)
Dimension & Weight	Diffusion = Approx 148(W) x 161 (H) x 88(0) mm , Approx 2.0kg Sample drawing = Approx 148(W) x 177(H) x 88(0) mm , Approx 2.2kg Air Aspiration = Approx 400(W) x 265(H) x 102(0) mm , Approx 5.6kg
Protection Level	About IP65 (except the sensor parts)
Explosion Proof	Exd II CT5 ATEX,IECEx **EN60079-29-1, IEC60079-29-1 by TIIS

*Please contact RIKEN KEIKI
**Applied to SO-1 type GP for H2, CH4, i-C4Hl0, C3Ha

Specification subject to change without notice

		SD-1/SD-1GH	SD-1 D/SD-1 DGH	SD-1 D-AS/SD-1 DGH-AS
Standard Accessories	Control lever
Standard Accessories	Control key
Optional Accessories	Sun Shade Cover (For pole stand)			-
	Sun Shade Cover (For wall)			-
	Drip Proof Cap (Round type)		-	-
	Calibration Cap		-	-
	Drip Proof Cover (Box type)	-	-