CM
Noncontact Temperature Measurement for Industrial Applications & OEMs
D:S=13:1 at focal point Far field D:S=9:1
CM Highlights
Measurement Specifications
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Scaleable 0-5 V, type J or K output
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Wide -20°C to 500°C (-4°F to 932°F)
temperature range
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Rugged IP 65 (NEMA-4)
stainless steel housing
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Rugged 13:1 optics at 90% energy
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150 mSec (95%) response time
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Alarm output
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Sensor status/self diagnostic
indicator LED
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RS232 digital communications for
sensor set-up and monitoring
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Adjustable signal processing
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DataTemp® Multidrop
software compatible
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Accessories for air purging and
lens protection
The Raytek® CM sensor provides the
advantages of infrared temperature
measurement in a powerful, compact,
integrated sensor. Designed for easy
integration, the CM sensor can easily
replace traditional contact probes with a
J-type or K-type thermocouple output, or
with a user scaleable 0-5 volt output, if
your application is susceptible to noise.
Temperature Range -20ºC to 500ºC (-4ºF to 932ºF)
Accuracy (mV) ± 1.5% of reading or ± 2ºC, whichever is greater
Accuracy (t/c) ± 1.5% of reading or ± 4ºC, whichever is greater
Spectral Response 8 to 14 microns
System Repeatability ± 0.5% of reading or ± 2ºC, whichever is greater
Temperature Resolution 0.1°C
Response Time (95%) 150 mSec
Emissivity 0.10 to 1.10 (adjustable)
Transmissivity 0.10 to 1.00 (adjustable)
Signal Processing Peak hold, valley hold, variable averaging
Self diagnostics/sensor status Normal operation, alarm, out of range, unstable,
sensor fault
Bore-Sight tolerance 4 3º @ focal point
1
Accuracy from -20 to 0ºC is ±3.5ºC
2
Accuracy and resolution specifications are valid for ambient temperature
23ºC ± 5ºC, e = 1.0 calibration geometry
3
Accuracy measured on the 0-5 VDC output or RS232 for t/c models is ± 1.5%
of reading or ± 2ºC, whichever is greater
4
Typical values measured at focal distance
1,2,3
1,2
The CM sensor is designed to measure
target temperatures ranging from -20°C
to 500°C (-4°F to 932°F). The CM's
onboard electronics are protected by a
rugged IP 65 (NEMA-4) stainless steel
housing, allowing the sensor to function
in ambient temperatures to 70°C (160°F)
without cooling.
Although small in size, the CM is loaded
with advanced features. An RS232 digital
interface allows the user to configure all
programmable sensor variables with the
powerful DataTemp Multidrop software
included with each sensor. These include
a 24 volt DC alarm output triggered by
target temperature or head ambient
temperature, peak hold, valley hold or
variable averaging signal processing,
adjustable target emissivity settings and
adjustable window transmissivity setting.
The built-in sensor health LED provides
a convenient on-line indicator of the
sensor's operating status and aids in
troubleshooting initial sensor set up.
Compact. Powerful. Easy to install.
Affordable.
The Raytek CM sensor is the
ideal solution for both OEM and end-user
applications.
Nominal Optical Specifications
D:S is the optical resolution expressed as a ratio of the distance to the target
spot divided by the diameter of the spot.
Nominal spot size based on 90% energy.