The CDA thermometer is intended for measurement of the atmosphere temperature in waste incinerators.It can be used for gas or flame temperature measurement in a variety of other plant situations provided there is sufficient path length.
Its reading is unaffected by cold CO2so it will ‘see through’ a cold combustion atmosphere to measure a hot atmosphere beyond.
- 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.
It can be used for gas or flame temperature measurement in a variety of other plant situations provided there is sufficient path length. Its reading is unaffected by cold CO2 so it will ‘see through’ a cold combustion atmosphere to measure a hot atmosphere beyond.
In an incinerator it 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.
|Range:||400 to 1800°C|
|Field of view:||20mm/0.79in parallel to 600mm/23.6in (nominal)|
|Output:||4 to 20mA linear (2-wire loop connection)|
|Response time:||1 to 10s adjustable|
|Emissivity adjustment:||0.10 to 1.00 in 0.01 increments|
|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 45V 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 300Hz|
Continuous product development may make it necessary to change these details without notice.
|CDA Incinerator thermometer – datasheet|