Sierra Monitor Corporation 206 Specifications, Ordering Information, Model 203 - Hydrogen Sulfide

Model 203 - Hydrogen Sulfide

The Model 203 can be used in such typical applica- tions as wastewater treatment plants, laboratories and chemical plants.

Model 206 - Carbon Monoxide

The Model 206 Carbon Monoxide Gas Sensor Module can be used to provide an early warning of Carbon Monoxide accumulation in tanks, laboratories, chemi- cal plants, parking garages, vehicle test facilities and more.

SPECIFICATIONS

SENSOR TYPE:	Solid-State Metal Oxide Semiconductor
RANGE:	(at 50% relative humidity)
Model 201	300 - 2,000 ppm Hydrogen
	500 - 10,000 ppm Methane
Model 203	10-50 ppm Hydrogen Sulfide (H S)
	2
Model 206	50 - 500 ppm Carbon Monoxide (CO)
RESPONSE TIME:
Model 201	Less than 30 seconds
Model 203	For 50 ppm alarm, if 50 ppm H2S is present:
	1-4 minutes, if >250ppm H2S is present:
	30-90 seconds
Model 206	Less than 30 seconds
PERIODIC
MAINTENANCE:	None, other than routine calibration
OPERATING
TEMPERATURE
RANGE:	-4°F TO 158°F
	(-20°C TO 70°C)
INPUT:	9 - 24 VDC (+ 1V), 250 mA
OUTPUT:	0.5 amp dry contact, 100 VDC, 130 VAC
	Nominal 5 volts DC (TTL), source 25mA.
	SAFE and ALARM signals.
INDICATORS:	Internal LED for calibration
ENCLOSURE:	Class I, Division 1, Groups C, D
ENCLOSURE	Cast aluminum for protection against
MATERIAL:	galvanic corrosion
SIZE:	6.75 x 4.0 x 3.5 in
	(17.1 x 10.2 x 6.0 cm)
WEIGHT:	24 oz (678 g)
APPROVAL:	UL 60950

ORDERING INFORMATION

Combustible Gas	201-00
Hydrogen Sulfide	203-00
Carbon Monoxide	206-00

2007 by Sierra Monitor Corporation Printed in U.S.A.

Sierra Monitor Corporation 1991 Tarob Ct. Milpitas, CA 95035 (408) 262-6611 800-727-4377 FAX: (408) 262-9042

Visit our Web site at: www.sierramonitor.com E-Mail: sierra@sierramonitor.com

Rev. B 8/23/07