Raytek Raytek RAYCI1B Fixed IR Sensor Type

Raytek Raytek RAYCI1B Fixed IR Sensor Type
CI
TWO YEAR LIMITED WARRANTY
THERMALERT SERIES
THERMALERT® CI™
COMPACT INFRARED
SENSOR
OPERATOR’S GUIDE
Rev J
05/00
56800-1
Raytek warrants this product to be free from defects in material and
workmanship under normal use and service for a period of two
years from date of purchase except as hereinafter provided. This
warranty extends only to the original purchaser (a purchase from
Raytek or Raytek’s licensed distributors is an original purchase).
This warranty shall not apply to fuses or batteries. Factory calibration is warranted for a period of one year. The warranty shall not
apply to any product which has been subject to misuse, neglect,
accident, or abnormal conditions of operation or storage. Should
Raytek be unable to repair or replace the product within a reasonable amount of time, purchaser’s exclusive remedy shall be a refund
of the purchase price upon return of the product.
In the event of failure of a product covered by this warranty, Raytek
will repair the instrument when it is returned by the purchaser,
freight prepaid, to an authorized Service Facility within the applicable warranty period, provided Raytek’s examination discloses to its
satisfaction that the product was defective. Raytek may, at its
option, replace the product in lieu of repair. With regard to any covered product returned within the applicable warranty period,
repairs or replacement will be made without charge and with return
freight paid by Raytek, unless the failure was caused by misuse,
neglect, accident, or abnormal conditions of operation or storage, in
which case repairs will be billed at a reasonable cost. In such a case,
an estimate will be submitted before work is started, if requested.
THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT
LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS, OR ADEQUACY FOR ANY PARTICULAR PURPOSE
OR USE. RAYTEK SHALL NOT BE LIABLE FOR ANY SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER IN
CONTRACT, TORT, OR OTHERWISE.
Raytek, the Raytek Logo, and Thermalert are registered trademarks and
CI is a trademark of Raytek Corporation
© Copyright 1996-2000 by Raytek Corporation
THERMALERT CI
ACCESSORIES
The Thermalert® CI™ Compact Infrared Sensor series
of online instruments are noncontact infrared temperature measurement systems. They are designed to measure accurately and repeatably the amount of heat energy emitted from an object and to convert that energy
into a measurable electrical signal.
A full range of accessories for various applications and
industrial environments are available (see Figure 1).
Accessories may be ordered at any time and added
on-site. Also available is a J- or K-type thermocouple
connection kit and extension cables.
Each model (see Table 1) comes with a 1 m (3 ft) cable
and two mounting nuts and is designed for easy integration into standard 4-wire systems. There are J or K
thermocouple output models or 10 mV/°C voltage output models if your application is susceptible to noise or
requires a long cable run. The electronics are protected
by a rugged NEMA 4 stainless steel housing.
Adjustable mounting
bracket accessory
Fixed
mounting bracket
accessory
Mounting nuts
(2 supplied)
Sensor
Table 1: Models
Overall
Temp. Range
Model
Output
CI1A
J Thermocouple
CI2A
K Thermocouple
CI3A
Voltage
CI1B
J Thermocouple
CI2B
30 to 500˚ C
K Thermocouple
(86 to 932˚F)
CI3B
Voltage
Accuracy
Air purge collar
accessory
0 to 115˚ C (32 to 240˚ F)
larger of ±2% or ± 3 ˚ C (± 6 ˚ F)
0 to 350˚ C
(32 to 662˚ F)
116 to 225˚ C (241 to 440˚ F)
larger of ± 5 % or ± 6 ˚ C (± 1 0˚ F)
Sensor
Right angle mirror
accessory
226 to 350˚ C (441 to 662˚ F)
>±5%
Air/Water-cooled housing
with integrated air purge
(factory installed option)
100 to 500˚ C (212 to 932˚ F)
larger of ± 2 % or ± 3 ˚ C (± 6 ˚ F)
30 to 99˚ C (86 to 211˚ F)
larger of ± 5 % or ± 6 ˚ C (± 1 0˚ F)
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Figure 1: Accessories and Options
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Table 2 (continued): Specifications
OPTIONS
Options for various applications and environments
are available. Options are factory installed and must
be ordered with base model units. These include the
following:
• NIST traceable certification
• Air/Water-cooled housing (comes with integrated
air purging and high temperature cable)
• High temperature cable–260°C (500°F) maximum
ambient temperature (comes standard with
air/water-cooled housing option)
• Longer 3 m (10 ft) standard cable
SPECIFICATIONS
Table 2 (below and continued on Page 4) lists the sensor’s optical, thermal, operational, electrical, environmental, and physical specifications.
Table 2: Specifications
Optical Resolution
4:1 @ 90% energy
Spectral Response Range
7–18 µm
Thermal
Measurement range
Detecting element
Accuracy
Repeatability
Temperature coefficient
See Table 1
Thermopile
See Table 1
±1% of reading
0.2˚ C per ˚C (0.2˚ F per ˚F)
Operational
Temperature resolution
Emissivity
Response time
Warm-up period
< 0.5˚ C (1˚ F)
Fixed at 0.95
350 mSec (95% response)
< 1 minute
Electrical
Power supply voltage
Maximum current draw
Ripple
Output impedance
Minimum load impedance
Outputs
12 – 24 VDC @20 mA
≤ 10 mA
≤ 2.5%
50 ohms
50K ohms
J or K thermocouple,
10mV/˚C Linear Voltage
Environmental
Sensing head rating
EMI
Conducted noise immunity
Relative humidity
Storage temp. range
Thermal shock
IP 65, NEMA 4
IEC 801-4, Level 1
10 to 95%, non-condensing
-30 to 85˚ C (-22 to 185˚ F)
Max error of 5˚ C (for ∆T=25˚)
stabilization time=20 mins.
0 to 70˚ C (32 to 160˚ F)
Ambient operating range
0 to 94˚ C (32 to 200˚ F)
air cooling
0 to 105˚ C (32 to 220˚ F)
water cooling
water cooling/high temp cable 0 to 260˚ C (32 to 500˚ F)
Physical
Dimensions
19 mm dia x 87 mm L
(0.75 in dia x 3.4 in L)
130 g (4.5 oz)
Stainless steel
Weight
Material
Cable–Standard
Maximum ambient temperature
Material (type & color)
Cable length
Gauge
Cable–High Temperature
Maximum ambient temperature
Material (type & color)
Cable length
Gauge
105˚ C (220˚ F)
PVC, grey
1 m (3 ft)
AWG 24 (J, K t/c cable)
AWG 22 (10mV/˚C cable)
260˚ C (500˚ F)
Teflon, black
1 m (3 ft)
AWG 24
Continued on next page
4
3
Optical Chart
INSTALLATION
Figure 2 shows you how to read the optical chart. The
optical chart (Figure 3) indicates the nominal target
spot diameter at any given distance from the sensing
head and assumes 90% energy.
Target spot size
at focus point
Diameter of target
spot size in inches
Distance from sensor
to object in inches or feet
The installation process consists of the following:
• Preparation
• Mechanical Installation
• Electrical Installation
The most important part of the installation process is
preparation. Please read the following section thoroughly before proceeding with the mechanical and
electrical installations.
Preparation
Diameter of target
spot size in millimeters
Distance from sensor to
object in millimeters or meters
Distance and Spot Size—The size of the area (spot
size) you wish to measure determines the distance
between the sensor and the target (see Figure 3 for distances and spot sizes). The spot size must not be larger than the target. Mount the sensor so the measured
spot is the same or smaller than the target. Figure 4 is
an overview of proper sensor placement.
Focus Point D:S = Distance to spot divided by spot diameter at the focus point
Far Field D:S = Ratio at distances greater than 10x the focus distance
Best
Figure 2: How to Read the Optical Chart
Good
Incorrect
Sensor
Target greater
than spot size
Background
Target equal
to spot size
Target smaller
than spot size
Figure 3: Optical Chart
Figure 4: Proper Sensor Placement
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Ambient Temperature—The sensing head is designed
to operate in ambient temperatures from 0 to 70°C (32
to 160°F). For ambient temperatures above 70°C
(160°F), a factory installed air/water-cooled housing
option is available that allows operation in ambient
conditions up to 260°C (500°F) with water cooling.
The air/water-cooled housing option comes with a
high-temperature cable and integrated air purging.
Mechanical Installation
All sensors come with a 1 m (3 ft) cable and 2 mounting nuts. You can mount the sensor in brackets or
cutouts of your own design, or you can use the fixed
and adjustable mounting bracket accessories. Figures
5 through 7 show the mounting bracket accessories’
and sensor’s dimensions.
Full R
Atmospheric Quality—Smoke, fumes, dust, and other
contaminants can coat the lens and cause erroneous
temperature readings. We recommend using the air
purge collar accessory in these types of environments
to keep the lens clean. (The air/water-cooled housing
comes with integrated air purging.)
∅19 (.76)
22
(.875)
1.5
(.06)
Electrical Interference—To minimize electrical or electromagnetic interference or “noise,” mount the sensor
away from motors producing large step load changes.
38
(1.5)
38
(1.5)
5
(.196)
Wiring—Before installing, be sure to check the distance between the sensor and the monitoring/controlling device. If necessary, extension cables are available
as accessories.
∅5 (.196)
2X 45˚
38
(1.5)
2X 90˚
Power—Have available a 12–24 VDC, 10 mA, power
supply.
19
(.75)
2X 13
(2X .5)
38
(1.5)
mm (inches)
Figure 5: Fixed Mounting Bracket
8
7
41
(1.625)
5
(.196)
22
(.875)
∅5 (.196)
2X 45˚
38
(1.5)
2X 90˚
59
(2.31)
∅19 (.76)
Full R
2X 13
(2X .5)
19
(.75)
38
(1.5)
38
(1.5)
Air/Water-cooled Housing with integrated air purge—
The air/water-cooled housing option (Figure 8) allows
the sensor to withstand ambient temperatures up to
260° C (500° F) with water cooling and the high-temperature cable. (The high-temp cable is standard when the
housing is ordered as an option.) It has 1/8” NPT fittings for water and air. Water temperature should be
15-30° C (60-86° F) for best performance. Chilled water
below 10° C (50° F) is not recommended. Without the
high-temperature cable, the sensor can withstand ambient
temperatures only up to 105° C (220° F) with water cooling.
mm (inches)
∅38 (1.5)
∅38 (1.5)
∅20 (0.8)
3/4"–16UNF 2A
Figure 6: Adjustable Mounting Bracket
1 m (3 ft)
PVC Cable
∅4 (.17)
3/4"–16UNF 2A
M18 x 1 (if ordered metric)
∅17 (.67)
13 flats
(0.5)
Front View
Rear View
10
(0.39)
96
(3.79)
∅14 (.56) ∅19 (.75)
19
(.75)
63
(2.48)
89
(3.5)
Figure 7: Sensor
12
(0.45)
1/8" NPT fittings (3)
7
(.27)
mm (inches)
6
(0.25)
~ 25
(~ 1)
~ 13
(~ 0.5)
25
(1)
137
(5.38)
118
(4.63)
mm (inches)
Figure 8: Air/Water-cooled Housing
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Air Purge Collar—The air purge collar accessory
(Figure 9) is used to keep dust, moisture, and other
contaminants away from the lens. It must be screwed
in fully. Air flows into the 10/32” fitting and out the
front aperture. Clean or “instrument” air is recommended. The air purge collar accessory is not needed with
the air/water-cooled housing.
Inside threads M18 x 1
(if ordered with metric threaded sensor)
∅35
(1.38)
∅19 (0.75)
3/4" – 16UNF 2A
10/32" threads
35
(1.36)
~ 25
(~ 1)
61
(2.38)
11
(0.42)
21
(0.84)
31
(1.21)
9
(0.37)
Right Angle Mirror—The right angle mirror accessory
(Figure 10) allows a perpendicular view of a target. It
may be used when space is limited or when you need
to avoid excessive radiation to the sensor. This can be
mounted either on the end of the sensor or on the air
purge collar, but not on the air/water-cooled housing.
Note: When using the right angle mirror, a small
amount of energy emitted by the source is lost, which
results in a lower than actual temperature reading. To
compute the corrected temperature, use this formula:
T = 1.035Tm – .035Tamb
where T=corrected temperature, Tm=temperature reading with mirror, and Tamb=ambient temperature. All
temperatures are in either °C or °F.
∅20 (.8)
3/4"–16 UNF 2B
mm (inches)
Figure 9: Air Purge Collar
Table 3: Recommended Water and Air
Recommended
Cooling water supply
15–30˚ C (60–86˚ F)
Temperature
1.89 liters per min (0.5 gpm)
Flow rate
Pressure drop
(across unit only) < 0.69 bar (10 psi)
82
13
(.5)
Cooling air supply
< 30˚ C (< 86˚ F)
Temperature
70.8 liters per minute (2.5 SCFM)
Flow rate
Pressure drop
(across unit only) < 0.34 bar (5 psi)
20
(.8)
Air purge air supply
< 30˚ C (< 86˚ F)
Temperature
11.33 liters per minute (0.4 SCFM)
Flow rate
Pressure drop
(across unit only) < 0.34 bar (5 psi)
31
(1.25)
Figure 10: Right Angle Mirror
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Electrical Installation
Sensor to Electronics Cable—The sensor to electronics cable is a 1m (3 ft), 4-wire, PVC cable. One end is
attached, at the factory, to the sensor head. The
other end has two pairs of wires and a bare shield
(ground) wire (see Figure 11).
mm (inches)
Wiring—Wire the electronics cable using Figure 11 and
Table 4 or 5 (for high temp cables) as a guide. USE
ONLY THE OUTPUT TYPE OF YOUR SENSOR.
WIRING TO THE WRONG OUTPUT WILL DAMAGE THE SENSOR. Note in Figure 11 that the numbers refer to the wire numbers in Table 4 or 5, which
shows proper wiring connections based on insulation
color coding.
Wire Numbers
(Refer to Table 4 or 5)
NOTE LABEL
The unlabeled pair of wires is for connecting to a
controller or chart recorder or for attaching to a thermocouple plug (for connecting to a thermocouple
meter). DO NOT CONNECT TO A POWER
SOURCE.
(ON POWER
SUPPLY WIRES ONLY)
1
Red (+)
2
3
4
12 – 24 VDC
The second pair of wires, with the label, is for connecting to a power source.
5 (Shield)
WARNING
Figure 11: Wiring Configuration
Incorrect wiring will cause severe, permanent damage to the sensor.
Table 4: Standard Cable Wiring
Pay close attention to the wiring diagram in
Figure 11, and match your sensor to the appropriate output type in Table 4 or 5. Wire accordingly.
Label
Wire
Number
Wire Color
Output
1
2
White
Red (white stripe)
Power
Supply
–
3
4
5
Signal + (Iron)
Signal – (Constantan)
Red (yellow stripe) Power Supply +
Power Supply –
Yellow
Shield Ground
Bare
Output
Power
Supply
–
1
2
3
4
5
Yellow
Red (yellow stripe)
Red (white stripe)
White
Bare
Signal + (Chromel)
Signal – (Alumel)
Power Supply +
Power Supply –
Shield Ground
Output
10mV/˚C
Voltage
Power
Supply
–
1
2
3
4
5
White
Green
Red
Black
Bare
Signal +
Signal Ground
Power Supply +
Power Supply –
Shield Ground
Output
J-type
Thermocouple
DO NOT CONFUSE OUTPUT WIRES WITH
POWER SUPPLY WIRES.
K-type
Thermocouple
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Function
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Table 5: High Temperature Cable Wiring
OPERATION
Once the sensor is in position and you have made sure
that the appropriate power, air, water, and cable connections are secure, the system is ready for continuous
operation.
Wire
Number
Wire Color
Function
1
2
3
4
5
White
Red (white stripe)
Red
Yellow
Bare
Signal + (Iron)
Signal – (Constantan)
Power Supply +
Power Supply –
Shield Ground
Output
1
2
Yellow
Red
Signal + (Chromel)
Signal – (Alumel)
1. Turn on the power supply.
Power
Supply
–
3
4
5
Red (white stripe)
White
Bare
Power Supply +
Power Supply –
Shield Ground
2. Turn on the meter, chart recorder, or controller.
Output
10mV/˚C
Voltage
Power
Supply
1
2
3
4
5
Red
Yellow
Red (white stripe)
White
Bare
Signal +
Signal Ground
Power Supply +
Power Supply –
Shield Ground
Output
Label
Output
J-type
Thermocouple
K-type
Thermocouple
Power
Supply
–
–
Extension Cables—Extension cables are available as
accessories. Also available is a thermocouple connection kit.
IMPORTANT
Be aware of the following when using the sensor:
To operate, complete the following simple steps:
3. Read/monitor the temperature.
WARNING
If using the air/water-cooled housing, do not
leave it in a heated environment with the
coolant turned off. Damage to the sensor and to
the housing can occur.
MAINTENANCE AND
TROUBLESHOOTING
• If the sensor is exposed to significant changes in
ambient temperature (hot to cold or cold to hot),
allow 20 minutes for the temperature to stabilize
before taking or recording measurements.
If your sensor is not performing as it should, try to
match the symptom in Table 6 to its probable cause. If
the table does not help, call us at one of the phone
numbers listed on the last page.
• Do not operate the sensor near large electrical or
magnetic fields (e.g., around arc welders or induction heaters). Electro-Magnetic Interference (EMI)
can cause measurement errors.
Our customer service representatives are always at
your disposal for application assistance, calibration,
repair, and solutions to specific questions or problems.
Contact our Service Department before returning any
equipment to us. In many cases, problems can be
solved over the telephone.
• Connectors or wires must be connected only to the
appropriate input jacks or terminals.
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Table 6: Troubleshooting
Symptom
Probable Cause
Solution
No output
No power to sensor
Check the power
supply
Erroneous Temp.
Incorrect wire
connection
Check wire color
codes and reconnect
Erroneous Temp.
Faulty sensor cable
Verify cable continuity
Erroneous Temp.
Field of view
obstruction
Remove obstruction
Lens Cleaning—Keep the lens clean at all times. Blow
off loose particles (if not using the air purge accessory)
with clean compressed air, then carefully wipe surface
with moist cotten swab (water or water-based glass
cleaner). DO NOT use solvents.
CE CONFORMITY FOR THE
EUROPEAN COMMUNITY
Raytek Corporation
Worldwide Headquarters
Box 1820, Santa Cruz, CA 95061-1820
Phone: (831) 458-1110 (800) 227-8074
FAX: (831) 458-1239
Raytek GmbH
European Headquarters
Phone: 49 30 478 0080
FAX: 49 30 471 0251
Raytek do Brasil
South American Headquarters
Phone: 55 15 233 6338
FAX: 55 15 233 6826
Raytek Mexico
Mexico, Caribbean, and Central America
Phone: 52 22 30 4380
FAX: 52 22 30 4438
Raytek Japan, Inc.
Phone: 81 3 3822 5715
FAX: 81 3 3822 5712
This instrument conforms to the following standards:
• EN50081-1:1992, Electromagnetic Emissions
• EN50082-1:1992, Electromagnetic Susceptibility
Emission tests were conducted over a frequency range
of 30–1000 MHz and susceptibility tests over a range
of 27–500 MHz . The instrument’s average error in
these frequency ranges is 1.0° C at an electric field
strength of 3 V/m. At some frequencies the instrument may not meet its stated accuracy.
Raytek China Company
Phone: 86 10 6437 0284
FAX: 86 10 6437 0285
Raytek UK Ltd.
Phone: 441 908 630800
FAX: 441 908 630900
Raytek France
Phone: 33 1 64 53 1540
FAX: 33 1 64 53 1544
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