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RAYTEK COMPACT SERIES
MI
Datasheet
Noncontact Temperature Measurement for Industrial Applications
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MI Highlights
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Small sensing head fits where other sensors can’t
■
Three Ambient operating ranges
MID 85ºC (185ºF) MIC 125ºC (257ºF) MIH 180ºC (356ºF)
■
5-digit backlit LCD user interface
■
Adjustable Emissivity, Peak Hold, Valley Hold and
Averaging functions
■
1% accuracy from -40°C to 600°C (-40°F to 1112°F)
■
10:1, 22:1 optics
■
Powered by 12-24 VDC at ≤100 mA
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Accessories for cooling and air purging
■
Remote electronics box
■
RS-232 or optional RS-485 digital communications
for remote setup and monitoring
The Raytek MI is a two-piece infrared temperature
measurement system with miniature sensing head and
separate electronics. The sensor is small enough to be
installed just about anywhere, yet it performs as well as much
larger systems. The MI electronics include a host of signal
processing features which you won’t normally find in systems
in this price range, including Emissivity, Peak Hold, Valley
Hold, and Averaging function, all of which are adjustable on
the 5-digit LCD user interface.
Designed for a wide range of applications where the target
temperature is in the -40°C to 600°C (-40°F to 1,112°F)
range, the sensor is housed in a rugged stainless steel
enclosure to ensure long term performance, even in harsh
industrial environments with ambient temperatures up to
180°C (356°F) without cooling. Although the MI unit is small
in size, it still has the features you need, with 1% accuracy,
10:1 or 22:1 optics and user selectable output signals. And
the MI system’s response time is as fast or faster than many
advanced systems.
Measurement Specifications
Spectral Response:
Model
LT (Low Temp.) 8 to 14 microns
Optical Resolution:
LT 10:1, 22:1
Temperature Range:
Model
LT -40°C to 600°C (-40°F to 1112°F);
-25°C to 600°C for J-thermocouple output
System Accuracy: ±1% of reading or ±1°C,
whichever is greater
Thermocouple output accuracy
±1% of reading or ±2.5°C,
whichever is greater
System Repeatability: ±0.5% of reading or ±0.5°C (1°F),
whichever is greater
Temperature Coefficient:
MID 0.15K per K or 0.15% per K,
MIC 0.05K per K or 0.05% per K
MIH 0.05K per K or 0.05% per K
whichever is greater*
Temperature Resolution:
LT 0.3°C or 0.5°F
System Response Time: 150ms (95%)
Emissivity: 0.100 to 1.100 digitally adjustable
increments of .001
Transmission: 0.100 to 1.100 digitally adjustable
increments of .001
Signal Processing: Peak hold, valley hold, variable
averaging filter, adjustable up to
998 seconds
* NIST/DKD certified models available with 0.05K per K
Nominal Optical Specifications
Even more features are available with the RS-232 or optional
RS-485 communications and the DataTemp Multidrop
Software. These features include remote control and
monitoring of all sensor variables, a 5V alarm signal triggered
by a target temperature or head ambient temperature, an
8-position “recipe” table that can be easily interfaced to
an external control system, an external reset signal input
for signal processing, and even external inputs for analog
emissivity adjustment or reflected energy compensation.
The MI unit’s miniature size and low cost make it ideal for
installation at multiple points along your process. Accurate.
Rugged. Easy to install. Affordable. With the MI, precision
infrared temperature measurement is now an economical
alternative.
Raytek MI – miniature sensor, maximum performance!
D:S is the optical resolution expressed as a ratio of the distance to
the measurement spot divided by the diameter of the spot.
Optical resolution for the MI is 10:1, 22:1.
Nominal spot size based on 90% energy.
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Electrical Specifications
Preinstalled cable
standard cable length
1 m (3.2 ft) Ø 5 (.2)
Accessories / Options
Outputs: Scalable 4-20mA, 0-20mA,
0-5V, J or K thermocouple
Alarm Relay: 10mV/°C Head Ambient signal
Cable Length: 1 m (3.2 ft) standard,
3 m (10 ft), 8 m (26 ft) and
15 m (50 ft) lengths available
Output Impedance
(T/C output): 20 ohms
Minimum Load Impedance
(mV output): 100K ohms
Maximum Loop Impedance 500 ohms with 24 VDC
(mA output): power supply
Current Draw: 100 mA
Power Supply: 12-24 VDC
Sensor Specifications
Environmental Rating: NEMA-4 (IP 65)
Ambient Temperature Range:
MID 0°C to 85°C (32°F to 185°F)
MIC 0°C to 125°C (32°F to 257°F)
MIH 0ºC to 180ºC (32ºF to 356ºF)
Electronics housing 0°C to 65°C (32°F to 150°F)
Storage Temperature: -18°C to 85°C (0°F to 185°F)
Relative Humidity: 10 to 95%, non-condensing
Construction:
Sensing head Stainless steel
Electronics housing Zinc, die-cast
Weight:
Sensing head (w/1 m cable) 50 g (1.75 oz)
Electronics housing 270 g (9.5 oz)
Shock IEC 68-2-27 (MIC ST 810D)-50g’s, 11 ms on any axis
Vibration 68-2-27 (MIC ST 810D)-3g’s, 11-200 Hz on any axis
Sensor Dimensions
Sensing Head
Each standard MI package includes a sensing head, one
mounting nut, 1 m (3.2 ft) of cable, die-cast housing with
premounted electronics, and an operator’s manual. Longer
cables up to 15 m (50 ft) maximum are available and must be
specified at time of order.
Adjustable or fixed
sensing head (XXXMIACAB or
Viewport accessory
for MI electronics
(XXXMIACV)
mounting bracket for
XXXMIACFB)
Air purge jacket to keep lens or right
angle mirror clean (XXXMIACAJ)
DataTemp Multidrop
software puts you in control.
Multidrop Network Installation
RS-485 sensors can be configured in a multidrop network or
point-to-point installation. In multidrop networks, a dedicated
PC with DataTemp Multidrop software supports online system
monitoring and configuration.
Electronics Housing
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RAYMI
Model
Optics
Temperature
Range
Options
A
B
C
D
Model
RAYMI
Code A
D
C
H
Code B
10
20
Code C
LT
Code D
4
CB 3
CB8
CB15
V
Typical
Model
Number
Description
Modular Infrared Thermometer
Model
Standard model includes selectable 4-20mA/0-20mA, 0-5 V, or J/K thermocouple output and head temperature output
85 ºC (185 ºF) ambient operating range .05k/k temperature coefficient
MID with DKD/NIST calibration certificate and optimized performance 125 ºC (257 ºF) ambient operating range
.05k/k temperature coefficient
MID with DKD/NIST calibration certificate and optimized performance 180 ºC (356 ºF) ambient operating range
.05k/k temperature coefficient
Optics
10:1 D:S sensor with 1m wiring cable
22:1 D:S sensor with 1m wiring cable
Temperature Range
-40 ºC to 600 ºC (-40 ºF to 1112 ºF); 8 – 14 microns
Options
RS-485 communication for multidrop networks
3 m (9.8’) cable
8 m (26’) cable
15 m (49’) cable
Display window for electronics housing
RAYMIH10LTCB3
Raytek Corporation
Worldwide Headquarters
1201 Shaffer Rd., Bldg. 2
Santa Cruz, CA 95060-5731 USA
Tel: 1 800 227 8074 (USA and Canada, only)
1 831 458 1110
Fax: 1 831 458 1239
solutions@raytek.com
To find a Raytek office near you, please visit www.raytek.com
Worldwide Service
Raytek offers services, including emergency repairs and calibration.
For more information, contact your local office or e-mail: support@raytek.com
Raytek Automation Products: Noncontact Temperature Measurement for Industrial Applications
www.raytek.com
for up-to-the-minute features
© 2006 Raytek Corporation (2-1702 Rev. G) 8/2006
Fluke, Fluke Raytek logo are registered
trademarks of Raytek A Fluke company.
Specifications subject to change without notice.
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