The Ametek-Land  Model CDA for waste incinerators

CDA_incinerator_IRT-installationOnline  —  The new CDA thermometer is intended for measurement of the atmosphere temperature in waste incinerators.

The CDA thermometer can be used for gas or flame temperature measurement in a variety of other plant situations provided there is sufficient path length.

The CDA thermometer’s temperature reading is unaffected by cold CO2 so it will ‘see through’ a cold combustion atmosphere to measure a hot atmosphere beyond.

In an incinerator the CDA infrared thermometer can be pictured as an ‘invisible thermocouple’ extending into the atmosphere above the bed by perhaps 2 metres/6.5 feet (penetration depth depends on atmosphere conditions).

In use, it is fitted wholly external to the incinerator, usually to a flanged tube penetrating the wall.

Key Benefits

• The CDA thermometer fits the standard Land System 4 mounting accessories and protection jackets which can be air or water-cooled. The sighting tube should normally be air-purged.

• The thermometer operates on a simple 2-wire loop connection and outputs a 4 to 20mA signal linear with temperature.

• The thermometer reading is insensitive to the presence of gasses other than CO2 and is relatively insensitive to particulate matter in the atmosphere – i.e. it measures true gas temperature.

Technical Details

Range:400 to 1800 °C/752 to 3272 °F
Field of view:20 mm/0.79 in parallel to 600 mm/23.6 in (nominal)
Output:4 to 20 mA linear (2-wire loop connection)
Response time:1 to 10 s adjustable
Emissivity adjustment:0.10 to 1.00 in 0.01 increments
Resolution:<0.5 °C/1 °F
Accuracy (absolute):<0.5% Kelvin over 600 to 1600 °C/1112 to 2912 °F
<1% Kelvin over 400 to 600 °C/752 to 1112 °F
<1% Kelvin over 1600 to 1800 °C/2912 to 3272 °F
Ambient temp. limits:0 to 50 °C/32 to 122 °F
Drift with ambient temp.:<2 ° per 10 ° ambient change
Drift with time:<1 °C/2 °F per year
Power supply:11 to 45 V d.c.
Sealing:To IP65/NEMA4X requirements
CE:EN 50-082-2 (immunity), EN 50-081-1 (emission), IEC 1010 (safety)
Vibration:3G, any axis, 10 to 300 Hz

AMETEK Land (Land Instruments International) is the world leader in the design and application of infrared temperature measurement for industry. AMETEK Land is known as both innovators and manufacturers of high quality precision radiation thermometers and thermometer systems; AMETEK Land’s position is unrivaled with over 60 years experience in temperature measurement. Land products are used extensively in applications as diverse as steel, glass, electronics, mineral processing, power generation, utility and aircraft gas turbines, and a wide range of other industries.

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