The SEC infrared carbon dioxide detector is a single source dual wavelength instrument. The sensing and reference elements are self-compensating for optical integrity and other signal inhibitors. The industry standard 4-20 mA analog output provides remote alarm, fault and calibration signals.

Features

• Infrared sensing technology
• Virtually maintenance free
• Low cost of ownership, over five years operating life
• Immune to poisoning and etching
• Designed for harsh environments
• Explosion proof
• Compact, lightweight
• Fast response time
• Smart calibration
• Self compensating optical bench and no moving parts
• Heated optical chamber
• Low power consumption
• Operates in anaerobic atmosphere
• Fault indications for all failure states
• Routine calibrations are not required
• 4-20 mA output
• Many ranges available
• RS-485 communication link
• Digital display optional

Applications

• Gas storage
• Injection oil recovery
• Industrial process control
• Food processing & packaging
• Greenhouses
• Bottling plants
• Water industry
• Environmental chambers
• Laboratories
• Breweries & wineries
• HVAC (DCV, energy management)
• Engine test cells

Unit Status Chart

Current	Output	Status
4-20	mA	Normal measuring mode
0.0	mA	Unit fault
0.2	mA	Reference channel fault
0.4	mA	Analytical channel fault
0.8	mA	Unit warm up
1.0	mA	Optics fault
1.2	mA	Zero drift fault
1.6	mA	Calibration fault
2.0	mA	Unit spanning
2.2	mA	Unit zeroing
4.0	mA	Zero gas level
5.6	mA	10% of full scale
8.0	mA	25% of full scale
12	mA	50% of full scale
16	mA	75% of full scale
20	mA	100% of full scale
20.1-23	mA	Over range (>100%)

Specifications

Detectable Gases	Carbon dioxide
Range	0-1% Volume 0-2% Volume 0-5% Volume Alternate ranges are available
Accuracy	± 3% 0 to 50% full scale ± 5% 51 to 100% full scale
Operating Voltage	18-36 VDC
Power Consumption	4 watts at 24 VDC
Analog Output	4-20 mA (sourced)
Response Time	T50 < 3 seconds T90 < 5 seconds
Humidity	0-99%, non-condensing
EMI Protection	Complies with: C22.2 No. 152-M1984, ISA S 12.13.01-2000
Operating Temperature	-40°F to 158°F
Enclosure	316 Stainless Steel
Classification	Class I, Div I, Groups B, C, D

Ordering Information

For pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email sales@afcintl.com.

Downloads

Millennium CO2 literature.