35-3001A-04-03 Carbon Monoxide Sample-Draw Detector • 5
Overview
This operator’s manual describes the 35-3001A-04-03 carbon monoxide sample-draw detector.
This version of the sample-draw detector has low flow contacts that allow the user to monitor the
detector’s low flow status. This manual also describes how to install, start up, maintain, and
calibrate the sample-draw detector when using it with a gas monitoring controller. A parts list at the
end of this manual lists replacement parts and accessories for the sample-draw detector.
Specifications
Table 1 lists specifications for the carbon monoxide sample-draw detector. See the controller
Operator’s Manual for information specific to the controller.
WARNING:
When using the 35-3001A-04-03, you must follow the instructions and warnings
in this manual to assure proper and safe operation of the 35-3001A-04-03 and to
minimize the risk of personal injury. Be sure to maintain and periodically
calibrate the 35-3001A-04-03 as described in this manual.
Table 1: Specifications
Target Gas and Detection Range
Carbon Monoxide: 0 - 300 ppm
Input Power
24 VDC Nominal (18.5 VDC - 30 VDC)
Construction (housing)
Fiberglass/polyester (NEMA 4X)
Dimensions
8.5 in. H x 6.5 in. W x 4.25 in. D
Weight
4.5 lbs.
Sampling Method
Sample-draw
Sample Flow
3.0 SCFH typical, with no inlet or exhaust line
Flow to Sensor
1.0 SCFH (nominal)
Low Flow Setpoint
0.6 ± 0.1 SCFH
Low Flow Relay Contact Ratings
(resistive load)
Voltage
Amps
125 VAC
0.6 A
30 VDC
1 A
110 VDC
0.6 A
Maximum Recommended Inlet/
Exhaust Line Length for
1/4” O.D. x 1/8” I.D. Tubing
Inlet
Exhaust
100 feet
0 feet
50 feet
50 feet
Maximum Recommended Inlet/
Exhaust Line Length for
1/4” O.D. x 0.170” I.D. Tubing
Inlet
Exhaust
100 feet
100 feet
Response Time
90% in 30 seconds
Accuracy
± 5% of reading or ± 5 ppm CO (whichever is greater)
