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Home > Gas Detection > Fixed Point Gas Detection Systems > Millennium Infrared Gas Detection

SEC Millennium Infrared Hydrocarbon Gas Detector

Infrared Transmitter
 The SEC Millennium hydrocarbon 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 complete remote alarm, fault and calibration signals.

Specifications

Detectable Gases Methane, propane, n-butane, octane, ethylene, ethanol, methanol, ethylene oxide, propylene, diesel, isopropyl alcohol, DF 2000, green earth
Range 0-100% LFL
Accuracy +/- 3% to 50% LFL or +/- 5% 51 to 100% LFL
Detection Method Diffusion, optional sample draw, requires a minimum of 1 LPM flow rate
Power Consumption 5 watts
Analog Output 4-20 mA, max 1000 Ohm load at 24 VDC supply voltage
Response Time T50 < 5 seconds, T90 < 10 seconds
Operating Temperature -40 to 70°C, 0-99% RH, non condensing
Operating Range 18 to 32 VDC measured at detector head
Max Current Draw At 24 VDC: Average 210 mA, Peak 400 mA
Construction 316 stainless steel
Classification Class I, Div I, Groups B, C, D
Approvals C 22.2 No. 152-M1984 (R1997)
Installation Category Cat I, Pollution Degree 2

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%)

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 Hydrocarbon literature.
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 and fast response time

Smart calibration

Self compensating optical bench and no moving parts

Heated optical chamber

Low power consumption

Operates in constant hydrocarbon background and anaerobic atmosphere

Fault indications for all failure states

Routine calibrations are not required

4-20 mA output

0 to 100% LFL detection range

Can be coupled with SEC transmitter for network applications

RS-485 communication link

Digital display optional

Applications

Refineries

Drilling and production platforms

Fuel loading facilities

Oil well logging

LNG/LPG processing and storage facilities

Gas turbines

Chemical plants

Compressor stations

Wastewater treatment facilities

Transportation facilities
Last Revised: 1/31/09