Sierra Monitor Corporation 4105 manual Sensor Type Units, Range Resolution Response Time

Instruction Manual

8.SPECIFICATIONS (Continued)

Model	4105-12	4105-21	4105-22 4105-253		4105-263
Gas	NO2	HCL	HCN	NH	HF
Sensor Type	E.C.	E.C.	E.C.	3	E.C.
				E.C.
Units	ppm	ppm	ppm	ppm	ppm
Range	0-20	0-20	0-20	0-50	0-10
Resolution	0.2	0.5	0.1	0.1	0.5
Response Time	35 sec.	150 sec	70 sec.	45 sec.	30 sec.
to 90% of signal
Sensor Life 2	2 yrs	2 yrs	2 yrs	N/A	N/A
Operating Range
Temperature	14 to 122oF	14 to 122oF	14 to 122oF 14 to 113oF		14 to 113oF
	-10 to 50oC	-10 to 50oC	-10 to 50oC	-10 to 45oC	-10 to 45oC
Relative Humidity	15-90%	15-90%	15-90%	20-90%	20-90%
Pressure	10%	10%	10%	10%	10%
Electrical Data
Input Voltage DC			19-30 VDC at less than 100 mA
Output-Normal			4-20 mA DC linear
Output-Trouble				0 mA
Construction
Dimensions		H: 7.6", D: 4.6", W: 4.2" (19.3 x 11.7 x 10.7 cm)
Weight (Module)				5.0 lb. (2.2 kg)
Mounting				3/4" NPT
Housing			Explosion proof

(NEMA 7) / NEMA 4X Enclosure (Div. I, Class 1, Groups B, C, D)

Notes: 2. Sensor life is for use at standard temperature and pressure with occasional exposure to the gas of interest 3. Diffusion via membrane. Dimensions are H: 10.2", D: 6.0", W: 6.0" (25.9 x 15.2x 15.2 cm)

Model 4105 Gas Sensor Module (12/02) Page: 11