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WD1117 Rev F
Revised 07/07/22
R40 and R60 SERIES
FIXED INFRARED SENSORS
USER MANUAL
Palmer Wahl Instruments, Inc.
234 Old Weaverville Road
Asheville, NC 28804
Toll Free: 800-421-2853
Phone: 828-658-3131
Fax: 828-658-0728 www.palmerwahl.com
R40 / R60 Series Fixed Infrared Sensors User Manual
Table of Contents
2
R40 / R60 Series Fixed Infrared Sensors User Manual
Safety Instructions
This document contains important information and should be kept with the instrument at all times during its operational life. Other users of this instrument should be given these instructions with the instrument. Future updates to this information can be found at www.wahlheatspy.com and must be added to the original document. The instrument can only be operated by trained personnel in accordance with these instructions and local safety regulations.
Acceptable Operation
This instrument is intended only for the measurement of temperature. The instrument is appropriate for continuous use and operates reliably in demanding conditions, such as in high environmental temperatures, as long as the documented technical specifications for all instrument components are adhered to. Compliance with the operating instructions is necessary to ensure the expected results.
Unacceptable Operation
This instrument should not be used for medical diagnosis.
Replacement Parts and Accessories: Use only original parts and accessories approved by the manufacturer. The use of other products can compromise the operation safety and functionality of the instrument.
Instrument Disposal
Disposal of old instruments should be handled according to professional and environmental regulations of your area for electronic waste.
Laser Warning
The instrument could be equipped with a Class 2 laser. Class 2 lasers shine only within a visible area at an intensity of 1 mW. The laser functions only to locate and mark surface measurement targets.
Do not aim the laser at people or animals.
110 / 230 V Power Supply
Use in 110 / 230 V electrical systems can result in electrical hazards and personal injury if not properly protected. All instrument parts supplied by electricity must be covered to prevent physical contact and other hazards at all times.
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R40 / R60 Series Fixed Infrared Sensors User Manual
Product Specifications
LCD
Keyboard
Analog Output
Digital Output
Alarm
Signal Processing
Relay
Cable
Power Supply
Ambient
Temperature
Storage
Relative Humidity
Protection Class
Laser Sight
Shock & Vibration
Housing Material
Dimensions
Optical Head I
Optical Head II
Fiber Optic Cable Dia.
Weight
Accuracy 1, 2
Repeatability 3
LCD Resolution
Response Time 4
Emissivity
R40
Electronic Specifications
5-Digit, 1° Resolution
4 – Key
R60
0-20mA, 4-20mA
RS485
High or Low
AVG / PEAK HOLD / VALLEY HOLD
User Programmable
12-pin Connection Cable
24 V DC Nominal, (10 – 32 V DC)
Sensor Specifications
0° to 65°C, (32° to 149°F) -20° to 60°C (-4° to 140°F) with Air Cooling
0° to 120°C, (32° to 250°F) with Water Cooling
0° to 175°C, (32° to 350°F)
Optical Head
0° to 200°C, (32° to 392°F)
Optical Cable
0° to 200°C, (32° to 392°F)
-20° to 70°C (-4° to 158°F)
10% to 95% non-condensing
IP65 (NEMA-4)
650 nm <1mW, Class II
MIL-STD-810D
ANSI 304 Stainless Steel
45mm Dia. x 183mm (1.77 x 7.20 in)
30 x 52mmn (1.18 x 2.04 in) - Fast Lock
30 x 94mm (1.18 x 3.7 in) - Threaded M30 x 1
8mm (0.31 in)
0.72 kg (1.58 lbs)
R40 Photodiode Models R40 Thermopile Models
Measuring Specifications
± 0.25% of reading ± 0.6% of reading or ± 1°C, whichever is higher
± 0.3% of reading or ± 0.3°C, ± 0.10% of reading or ± 1°C, whichever is greater
1°C / 1°F whichever is greater
1°C / 1°F
5 mS
0.10 to 1.00
150 mS
0.10 to 1.00
R60 Photodiode Models
± 0.25% of reading
± 0.10% of reading
1°C / 1°F
5 mS
0.10 to 1.00
1 at ambient temperature 23°C, e =1.0, NIST transfer standard.
2 Model R40P3: after 20 minutes warm-up.
3 at ambient temperature 23°C.
4 90% of value.
4
R40 Models
R40 / R60 Series Fixed Infrared Sensors User Manual
R60 Models
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R40 / R60 Series Fixed Infrared Sensors User Manual
Principle of Operation
R Series Fixed-IR sensors use a modular structure and component interchangeability to ensure an instrument is ideally suited for each particular application. It also simplifies field troubleshooting, repair and calibration.
Basics of Infrared Thermometry
Every object emits some amount of infrared radiation. As the object temperature increases, the intensity of the radiated energy increases. This emitted energy is related to a term called emissivity which is a number between 0 and 1 which is the object emitted energy in relation to a black body perfect radiator. A perfect radiator has an emissivity of 1 meaning that all the energy being emitted belongs to it whereas the measured target of interest may have part of its emitted energy being reflected from something else. We want to factor out the reflected energy by selecting a correct emissivity setting. The emissivity of most common materials is known, either exactly or closely as some objects will vary due to age and cleanliness. See more information about emissivity and a table of values for common materials in Appendix I.
Detector
Thermopile
A thermopile is a tight cluster of a large number of tiny specialized thermocouples. They are connected together to form a single measuring point and the output is the difference between the ambient temperature the head electronics are in (the cold junction) and the target temperature collected and determined by the optical system wavelength filter and the thermopile (hot junction).
The waveband is determined by an additional optical filter chosen by the manufacturer for the specific application. This is to reduce or eliminate emitted wavelengths, which might belong to the target or might be unwanted reflections that are of no interest for the measurement application.
Wahl provides 6 different spectrums in our thermopile versions. They are 3.43 micron, 3.9 micron,
4.11 to 4.72 micron, 5.1 micron, 7.9 micron and 8 to 14 micron.
Photodiode
Both Silicon and InGaAs photodiode principles are completely different from thermopile: the collected energy is transformed into electron flow. The result is a current proportional with the incident energy.
This transformation is very fast, taking only a few µS. The response time of the measuring system is limited by the electronics; high resolution and low energy consumption makes it a little bit slower. The waveband is determined by the physical characteristic of the sensor.
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R40 / R60 Series Fixed Infrared Sensors User Manual
Wahl provides 3 different spectrums in our photodiode versions, ranging from 1.0 micron and 1.6 micron.
Lens and Filter
The specifications of the lens decisively determine the optical path of the infrared thermometer, characterized by the ratio Distance to Spot size. The spectral filter selects the wavelength range, which is relevant for the temperature measurement. The detector and the processing electronics transform the emitted infrared radiation into electrical signals.
Wahl provides four optic options for the R40 model and five optic options for the R60 model for both the photodiode and thermopile versions.
Maximum Distance and Spot Size
Use the size of the object being measured, together with the optical resolution of the infrared thermometer to determine the maximum distance between the two. The object being measured should completely fill the field of view of the optics to prevent any potential errors.
Proper Placement of Sensor:
Target greater than spot size
Target equal to spot size
Target smaller than spot size
To achieve the best results, the spot size of the infrared thermometer should be smaller than the object being measured.
Before installation, review the target to ratio tables on the following pages for the appropriate Optics image for your model to determine the correct distance and visual field.
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R40 / R60 Series Fixed Infrared Sensors User Manual
R40 Optics
R40: 1M / 2M / 3M OPTICS – Photodiode Sensor
Optics Code: D100
Optics Code: F100
Optics Code: F300
Optics Code: F500
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R40 / R60 Series Fixed Infrared Sensors User Manual
R40: P3 / MT / F4 / G5 / P7 / G7 / LT OPTICS – Thermopile Sensor
Optics Code: D30
Optics Code: F100
Optics Code: F300
Optics Code: F500
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R40 / R60 Series Fixed Infrared Sensors User Manual
R60: 1M / 2M Optics – Photodiode Sensor
10
R40 / R60 Series Fixed Infrared Sensors User Manual
R60: 1M / 2M Optics – Photodiode Sensor, continued
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R40 / R60 Series Fixed Infrared Sensors User Manual
Air Purity
The lens must always be kept clean from:
• Dust
• Dirt
• Steam
• Vapors
• Fumes
• Particles
• Other contaminants
The flowing air from the Air Purge Collar, available as an accessory, can also be used to:
• Blow Smoke away from the lens
• Blow air out around the lens to counteract incoming waves of “Heat” from very ho t process fluctuations.
This is necessary to prevent coating or covering of the surface of the lens which will cause reading errors and might cause lens damage. It is important to make sure that only oil-free, dry, and clean filtered instrument grade compressed air is used.
Installation
R Series Fixed IR installation is very easy. The cylindrical stainless steel is externally threaded (M44 x
1.5) and allows quick connection with all available accessories.
Use the following procedure to install the R Series Fixed IR.
Ambient Temperature
R40 - Do not mount the measuring head in a room with an ambient temperature higher than 149°F
(65°C) without an adequate cooling system. a) The sensor is designed for measurements in ambient temperatures between 41° to 149°F (5°C to 65°C). b) In ambient conditions above 149°F (65°C), the operating range can be extended to 250°F
(120°C) with air cooling and to 350°F (175°C) with water cooling. c) In ambient conditions up to 600°F (315°C), a heavy-duty housing should be used. d) When using the water‐cooled housing, it is strongly recommended to use the supplied air purge collar to avoid condensation on the lens.
R40 Air/Water Cooling Jacket
When installing the R40 instrument head in a hot environment it is necessary to cool its electronics by pumping cold air or water through the cooling jacket. Use only clean air or water to prevent build-up which might cause an obstruction inside the unit or at its outlet. The air or water must be cold enough and of sufficient volume to cool the electronics for the ambient environment.
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R40 / R60 Series Fixed Infrared Sensors User Manual
Before running the water line please follow the following precautions:
1) The outlet of the cooling jacket must be kept clean in order to control the flow and water temperature;
2) Use a thermometer to control the water temperature.
NOTE: IN CLOSED CIRCUIT SYSTEMS, ALWAYS USE RUNNING WATER WITH A LOW-LEVEL PRESSURE
GAUGE TO ASSURE THE CONTINUOUS SUPPLY OF WATER.
R60 – operates in temperatures up to 200°C without cooling.
Environment
The environmental conditions at the installation point of the unit can have a significant impact on its performance. Avoid mounting the unit in locations near reflective surfaces or items that are very hot or cold. Bothersome reflections may affect your emissivity settings which will affect your target temperature readings. Ideally, your target areas should be, as far as possible, isolated from outside influences. Within the target area, everything should be as stable and repeatable as possible.
Electrical Interference
Do not route the signal cable near electromagnetic sources (for example: electrical motors, high power cables, welding, etc.). If necessary, use metal conduit.
Do not pull out the electronic board from the cylinder; it could be difficult to reassemble the thermometer.
To shield the connection cables, extend the shield wire to the destination point (display, controller, etc.) and connect it to ground.
Mechanical Installation
Using the Target vs. Distance Tables for Model R40, and Model R60 for the appropriate Optics image for your model, accurately aim the thermometer at the target. The optional laser aiming can assist you in achieving the best installation.
R60 only: Do not bend the fiber optics with a radius smaller than 200 mm. A smaller radius could cause a measurement error or breakage of the fiber optics. In order to achieve the best results, switch on the laser aiming and properly turn the fiber optics to obtain the maximum beam intensity from the optical head – before screwing the optical fiber optics to the main instrument.
13
Cable Connection
12 pin cable definition
R40 / R60 Series Fixed Infrared Sensors User Manual
E
D
F
J
B
K
A
PIN
G
L
C
H
M
R40 / R60
24V DC
24V GND
485 A
Unused
485 B
Unused mA (-) mA (+)
Relay NO/NC
Relay COM
Trigger
Shield
Cable Color
Blue
Purple
Red
Dark Brown
Light Brown
Grey
Green
White
Yellow
Pink
Light Orange
Black
14
D
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R40 / R60 Series Fixed Infrared Sensors User Manual
Power Supply
to all digital and analog circuits.
REV.
A
DESCRIPTION
Production Release
REVISION TABLE
DATE
4/19/2019
1
CHANGED BY APPROVED
DL
D
C C
B
A
4
B
R40 / 60 Series Operation and Menu
Control Panel
1) Quick Keys Layout
USED ON
2 Increase Value / Maximum
1 12139-11
Terminal Block 12
Marker Strip 12
ITEM
NO.
Part Number
UNLESS OTHERWISE SPECIFIED CONTRACT NO.
DIMENSIONS ARE MMS
TOLERANCES:
DECIMALS X 0 .1 .X 0 .0 5
ANGLES X 1 .X 0 .5
APPROVALS DATE
Laser Warning
DESCRIPTION
MATERIAL
DRAWN
DL
4/12/2019
1
1
QTY.
Note
Wa h l In s t r u m en t s , In c .
2 3 4 Old Wea ver ville Ro a d
As h eville, NC 2 8 8 0 4
R40 Connection Board
CHECKED
FINISH
APPLICATION LCD Display / Menu Selections
Assemblied
DO NOT SCALE DRAWING
ISSUED
SIZE
B
SCALE
CAGE CODE
1:1 WEIGHT
DRAWING NO.
16416
67.01
1
2 1
REV
A
Decrease Value / Ambient
Temperature
2) Power on to enter MENU 0 (Real-Time Temperature)
3) MENU key to scroll MENU 01 – 14
4) MENU 01 is Measuring Mode
5) MENU 02-14 is Editing Mode
6) MENU 00 is Reading Mode
A
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R40 / R60 Series Fixed Infrared Sensors User Manual
7) Key Definition
Mode Switch
◄ MENU
► ENTER
▲ UP
▼ DOWN
8) Menu
Measuring Mode
In Editing Mode, press ▼ until Menu no.14, then return to Measuring Mode
Menu Loop
Laser
Maximum Temperature
Ambient Temperature
Editing Mode
In Measuring Mode, press ▼ to enter
Editing Mode by Menu below.
Save and go to next menu
Select second level menu
Scroll between digits
Increase Value
Decrease Value
Parameter
0 Object Temperature
1 E missivity
2 T ransmission
3 A verage / P eak / V alley Select
4 A verage / P eak / V alley Time Setting
5 Analog Output Select
6 0/4 mA Temperature Setting
7 20mA Temperature Setting
8 Laser Switch
9 L ow Temperature Alarm
10 H igh Temperature Alarm
11 Multiple Sensor ID
12 B aud Rate
13 Temperature Unit
Code Display Range
- 925C
E E 0.99 0.10 to 1.00
T
A
T 1.00 0.10 to 1.00
A = Average
P = Peak
V = Valley
0 to 999 seconds
0 = consistently off
999 = consistently on
4-20 0-20 / 4-20
︺ u 600
Minimum Range: 100C
︹ n 1300
L
H
0
ID ID00
B B 96
C
Default
1.00
1.00
4-20
Range Low
Range High
1=on / 0=off
Setting
1
L 600
H1300
01 ~ 32 00
96 / 192 / 384 / 576 / 1152 96
C / F C
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R40 / R60 Series Fixed Infrared Sensors User Manual
Output
Milliamp Output
The milliamp output is an analog output you can connect directly to:
1) Display Panel
2) Recording Device
3) Chart Recorder
4) PLC
5) Controller
Wahl provides 4 to 20mA (default) and 0 to 20mA, switchable in control panel.
Relay Output
Relay output relates to the currently displayed temperature on display. The relay output can be used to indicate an alarm state or to control external actions. The relay contacts can be set to:
•
N.O. normally open: relay contacts are open while in the home position
The relay output has one user selectable setpoint:
• Trigger Point
Input
The external input can be used to provide the following functions:
• digital triggering
• digital switching of the laser
Signal Processing
When an IR thermometer is employed in an on-line system, its signal may be subjected to large fluctuations. Time function features are useful to retain the signal levels that are more likely to represent the true target temperature.
There are two ways signals are processed in the Wahl Fixed IR.
ON-SITE is for the user to set up through the instrument keypad and view the data thru instrument
LCD. On-site features include:
•
Averaging
•
Peak
•
Valley
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R40 / R60 Series Fixed Infrared Sensors User Manual
REAL TIME DATA uses W ahl’s Fixed IR via RS485 and protocol with the users’ own Windows-based software. Real time data features:
• Averaging
• Peak
•
Valley
Plus:
•
Peak-Picking
• Peak-Picking with reset
• Peak-Picking delayed
•
Valley-Picking
•
Valley-Picking with reset
• Track & Hold
Average
Rapid temperature fluctuations about a true mean value can make the thermometer output unsuitable for recording and control. In this case, the average function can be used to provide a smoothed signal.
The output signal Avu is given by:
Avu =Avp + (M – Avp) * 2 ΔT / D where
M
Avu
Avp
T
D Average time (sec)
(programmable)
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R40 / R60 Series Fixed Infrared Sensors User Manual
Peak
The Peak function holds a maximum temperature and retains it until a higher value appears or an external reset occurs.
Valley
The Valley function holds the minimum temperature and retains it until a lower value appears or an external reset signal occurs.
Peak-Picker
The peak-picker function holds a peak signal and allows it to decay slowly until the arrival of the next peak. It is used in such applications as rolling mills where the signal is occasionally lowered by steam, smoke, water droplets, metal scale, etc. When Peak-Picker function is programmed, the 4/20 mA output will follow the mathematical expression below:
U = Peak – (PickDec * 2
Δ
T) where
U
Peak
PickDec
T
= output signal
= peak signal
= Decay rate °C/sec
= sampling time
Peak-Picker with reset
When the Peak-Picker with reset function is selected, the external reset input is used to force the signal output to the current temperature measurement.
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R40 / R60 Series Fixed Infrared Sensors User Manual
Peak-Picker delayed
When the Peak-Picker delayed function is selected, you have to set the following parameters:
PickDec = Decay rate
Threshold
StartPeak
= Temperature threshold level
= delay for starting peak-picking
EndPeak = delay for ending peak-picking
Delayed Mode 2 = when selected, enable mode 2
•
When the signal exceeds the programmed trigger level (Threshold), the thermometer will hold for the “StartPeak” delay before beginning the standard Peak-Picker function.
• When the input signal decreases below the trigger level (Threshold), the thermometer will hold for the “EndPeak” delay before reset ting the output signal.
• The output signal will be reduced to low scale if Mode 1 is selected or the last calculated value if Mode 2 is selected.
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R40 / R60 Series Fixed Infrared Sensors User Manual
Valley-Picker
Reverse the Peak-Picker function to define the Valley-Picker function.
U = Valley + (PickDec * 2
Δ
T) where
U
Valley
PickDec
T
= Output signal
= Valley signal
= Decay rate °C/sec
= Sampling time
Valley-Picker with reset
Reverse the Peak-Picker with the reset function to define the Valley-Picker with reset.
Track and Hold
The Track (sample) and Hold function allows smoothed signals to be obtained from intermittent events. These may originate from objects on a conveyor belt or targets where the view is periodically obscured by rotating machinery. The output sampling is activated by a command signal received by an external switch that can be actuated by the belt or rotating machinery itself. The output is held when the switch is operated until the next command is received.
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R40 / R60 Series Fixed Infrared Sensors User Manual
R Series Communication Protocol
A protocol is used to write custom programs for applications.
Temperature Measuring Unit (TMU) Protocol
Red Text indicates sending to the TMU
Blue Text indicates receiving from the TMU
1) Communication follows RS485 standard, baud rate can be set up thru TMU keypad, 9600,
19200, 38400, 57600, 115200, bit/s, 8 data bits, no check bit, 1 stop bit.
2) Setup Temperature Measuring Unit (TMU) address: a.
Send hexadecimal numeral C0 XX 43 YY YY with their complement code (5 bytes total) i.
C0 – SYNC Code ii.
XX – Address of TMU, Range – 0 to 32 iii.
YY – New Address of TMU, Range – 0 to 32 iv.
Both fourth byte and fifth byte are the same b.
No feedback from TMU
3) Transmission rate setting a.
Send hexadecimal numeral C0 XX 53 YY YY with their complement code (5 bytes total)
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R40 / R60 Series Fixed Infrared Sensors User Manual i.
XX – Address of TMU, Range – 0 to 32 ii.
YY – transmission, Range 10 to 100 (0.10 to 1.00 with 0.01 increment) iii.
If XX matches YY in 2, then change transmission, otherwise no action iv.
Both fourth byte and fifth byte are the same b.
No feedback from TMU
4) Emissivity Setting a.
Send hexadecimal numeral C0 XX 54 YY YY with their complement code (5 bytes total) i.
XX – Address of TMU, Range – 0 to 32 ii.
YY – Emissivity, Range 10 to 100 (0.10 to 1.00 with 0.01 increment) iii.
If XX matches YY in 2, then change emissivity, otherwise no action iv.
Both fourth byte and fifth byte are the same b.
No feedback from TMU
5) Laser Setting a.
Send hexadecimal numeral C0 XX 50 01 01 with their complement code (5 bytes total) i.
XX – Address of TMU, Range – 0 to 32 ii.
Turn ON laser b.
No feedback from TMU c.
Send hexadecimal numeral C0 XX 50 00 00 with their complement code (5 bytes total) i.
XX – Address of TMU, Range – 0 to 32 ii.
Turn OFF laser d.
No feedback from TMU
6) Setting Alarm – Low Limit a.
Send hexadecimal numeral C0 XX 51 YY ZZ with their complement code (5 bytes total) i.
XX – Address of TMU, Range – 0 to 32 ， XX here should match the setting thru protocol no. 2 or thru the manual setting on TMU. ii.
Alarm Low Limit = (YY*256+ZZ) within measuring range iii.
If setting is lower than measuring range, it means Low Alarm is off. iv.
If setting is higher than measuring range, it is invalid data. b.
No feedback from TMU
7) Setting Alarm – High Limit a.
Send hexadecimal numeral C0 XX 52 YY ZZ with their complement code (5 bytes total) i.
XX – Address of TMU, Range – 0 to 32, XX here should match the setting thru protocol no. 2 or thru the manual setting on TMU. ii.
Alarm High Limit = (YY*256+ZZ) within measuring range iii.
If setting is higher than measuring range, it means High Alarm is off iv.
If setting is lower than measuring range, it is invalid data. b.
No feedback from TMU
8) Sub Range Setting – 4mA
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R40 / R60 Series Fixed Infrared Sensors User Manual a.
Send hexadecimal numeral C0 XX 48 YY ZZ with their complement code (5 bytes total) i.
XX – Address of TMU, Range – 0 to 32 ， XX here should match the setting thru protocol no. 2 or thru the manual setting on TMU. ii.
4mA related temperature = (YY*256+ZZ ) iii.
The temperature gap between 4mA and 20mA should be ≥100°C.
b.
No feedback from TMU
9) Sub Range Setting – 20mA a.
Send hexadecimal numeral C0 XX 49 YY ZZ with their complement code (5 bytes total) i.
XX – Address of TMU, Range – 0 to 32 ， XX here should match the setting thru protocol no. 2 or thru the manual setting on TMU. ii.
20mA related temperature = (YY*256+ZZ ) iii.
The temperature gap between 4mA and 20mA should be ≥100°C.
b.
No feedback from TMU
10) Read Temperature a.
Send hexadecimal numeral C0 XX 55 55 55 with their complement code (5 bytes total) i.
XX – Address of TMU, Range – 0 to 32, XX here should match the setting thru protocol no. 2 or thru the manual setting on TMU. b.
If XX matches YY in protocol no. 2. TMU send temperature back, otherwise no action. c.
Temperature format: hexadecimal numeral F0 XX AB CD EF with their complement code of AB CD EF (5 bytes total) i.
F0 – SYNC Code ii.
XX - Address of TMU, Range – 0 to 32, XX here should match the setting thru protocol No. 2 or thru the manual setting on TMU. iii.
AB CD EF – Decimal temperature with +/- info
+ / -
A
Thousands Hundreds
B C
Tens
D
Units
E decimal
F
BYTE 3 BYTE4 BYTE5
11) Read Ambient Temperature a.
Send hexadecimal numeral C0 XX 41 41 41 with their complement code (5 bytes total) b.
XX – Address of TMU, Range – 0 to 32, XX here should match the setting thru protocol
No. 2 or thru the manual setting on TMU. c.
If XX matches YY in 2. TMU send temperature back, otherwise no action. d.
Temperature format: hexadecimal numeral F0 XX AB CD EF with their complement code of AB CD EF (5 bytes total) i.
F0 – SYNC Code ii.
XX - Address of TMU, Range – 0 to 32 iii.
AB CD EF – Decimal temperature with +/- info
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R40 / R60 Series Fixed Infrared Sensors User Manual
+ / -
A
Thousands Hundreds
B C
BYTE 3 BYTE4
Tens
D
Plus = 0, Minus = 8
For example,
Units
E decimal
F
BYTE5
1.
-20.2 °C = 80 02 02
2.
-19.1 °C = 80 01 91
3.
1.0°C = 00 00 10
4.
1200.0°C = 01 20 00
5.
Resolution 1°C
12) Error Code
When TMU receives reading order, if the unit is out of working situation, TMU will feedback with 5 bytes: a.
F0 XX 80 27 40 - Reading is below Range Low Limit b.
F0 XX 03 10 00 - Reading is higher above Range High Limit c.
F0 XX 80 30 00 - Ambient temperature is lower than -20°C d.
F0 XX 00 65 00 - Ambient temperature is higher than 60°C
Note: XX – address of TMU.
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R40 / R60 Series Fixed Infrared Sensors User Manual
Accessories Guide
This chapter shows the full range of available accessories that can be supplied with the measuring systems. Special configurations or mounting systems can be provided to satisfy every application necessity. We are happy to help you choose the best option.
Surface Mount Bracket
When the thermometer is installed with standard environmental conditions you do not need to use any special cooling or lens cleaner systems. The thermometer can be installed directly on your process.
1) Fixed Surface Mount Brackets, 1 Axis
R40 (ø45mm, 1.77 in)
P/N: 16451
R60 (ø30.5mm, 1.20 in)
P/N: 16651
2) Surface Mount Brackets, 3 Axis
R40 (ø45mm, 1.77 in)
P/N: 16453
R60 (ø30.5mm, 1.20 in)
P/N: 16653
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R40 / R60 Series Fixed Infrared Sensors User Manual
Wall Mount Flange
Wall Mount Flange
• M30x1 male from Fixed IR / Air Purge side
Wall Mount Flange M30x1 Male
R40
P/N: 16483
R60
Air Purge
An Air Purge is used to eliminate dust, dirt, heat, steam, smoke, fumes, particles or vapors from the front of the optical head, and to keep the lens clean.
This air purge can also be used to cool the thermometer when necessary.
R40 Air Purge, M44x1.5 to M30x1
P/N: 16472
R60 Air Purge, M30x1 to M30x1
P/N: 16672
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R40 / R60 Series Fixed Infrared Sensors User Manual
Protective Window for R40 units
Protective windows are necessary in excessively harsh environments.
Window
Material
BK7
Sapphire
ZnSe
Part Number
16465-1
16465-2
16465-3
Models used for:
1M, 2M
1M, 2M, MT, F4, G5
P3, MT, F4, G5, P7, LT
Note: Locking ring is included with protection windows.
Note: window not needed on 3M units.
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R40 / R60 Series Fixed Infrared Sensors User Manual
R40 Cooling Jacket
R40 Cooling Jacket
Model
16460
1) Cooling Jacket (175°C / 350°F) P/N: 16460
Ambient Range
Up to 350°F (175°C)
2) R40 with 3-Axis Mounting Bracket, Air Purge and Water Cooling Jacket
3) R40 with Flange, Air Purge, and Water Cooling Jacket and Sighting Tube
29
R40 / R60 Series Fixed Infrared Sensors User Manual
Sighting Tube
Use a sighting tube to avoid reflected energy in temperature measurement environments. The sighting tubes must be used when the target is covered by fumes or flames. They should be used together with an air purge system to help you have a clean viewing path from target to the thermometer.
Sighting Tube
11.81 in (300 mm) Long
R40
R60
Optics
D100
F900
304SS
1500°F
800°C
P/N:
16491-1
Inconel
2000°F
1100°C
P/N:
16491-2
Silicon
Carbide
3000°F
1600°C
P/N:
16491-3
Alumina
3500°F
1900°C
P/N:
16491-4
Glassy
Carbon
5430°F
3000°C
P/N:
16491-5
Thermocouple IR
Thermocouple IR is composed of a protective thermowell, infrared lens, fiber optic cable and remote electronics. It uses the bottom of the thermowell as a blackbody target for the infrared lens installed at the other end of the well. The infrared radiation from the bottom of the well is transmitted by the optical fiber to the detector.
Thermocouple IR
11.81 in (300 mm) Long
R40
R60
Optics
F300
F300
304 SS
1500°F 800°C
P/N: 16492-1
Inconel
2000°F
1100°C
P/N: 16492-
2
Silicon Carbide
3000°F 1600°C
P/N:
16492-3
Alumina Glassy Carbon
3500°F 1900°C 5430°F 3000°C
P/N:
16492-4
P/N:
16492-5
30
R40 / R60 Series Fixed Infrared Sensors User Manual
Glass Furnace Roof Mounting for R60
The roof of a glass furnace or forehearth is a difficult place to install a whole measuring system, as it is hard to clean optic head from dirt and hard to remove the optic head for calibration service.
With Wahl‘s roof top mounting system, there is minimum effort for the quick servicing.
The rooftop mounting system includes a choice of two flanges, 16662 is a flange with four mounting holes to attach to the roof or wall of a furnace or forehearth, 16663 is a heavy-duty stainless steel cover specifically designed for gravity held rooftop mounting.
Flange Mount
16662
Gravity Mount
16663
31
Cable
Model
Temperature Range
Voltage Rating
Capacitance
Inductance
Conductor
R40 / R60 Series Fixed Infrared Sensors User Manual
Standard Cable
16118
-20 to 105°C
300 VRMS
23.5 pf/ft @1 kHz, Nominal
Conductor to Conductor
0.18 µH/ft, Nominal
DCR 16.4 Ω/1000ft @20°C,
Nominal
High Temperature Cable
16119
-80 to 200°C
300 VRMS
13.1 pF/ft @1 kHz, Nominal
Conductor to Conductor
0.19 µH/ft, Nominal
DCR 26 Ω/1000ft @20°C,
Nominal
Industrial Power Supply
16116 16117
•
Compact AC-DC power supply
•
Universal input 80-264VAC or 115-370VDC
•
Class II power supply with 3kVACisolation
•
Low cost AC/DC power supply
•
Short circuit & over current protected
• IEC/EN/UL60950 certified
•
Economical
•
88 - 264VAC
•
25W to 150W
•
Small size
•
Five year warranty
32
R40 / R60 Series Fixed Infrared Sensors User Manual
Maintenance and Troubleshooting
Each R series Fixed IR is factory calibrated and certified against Wahl Standards. A NIST Certificate of
Conformance stating the nominal and actual values and the deviation error is available separately. The instrument calibration must be periodically verified.
The R series uses sophisticated analog and digital technology. All maintenance operations must be carried out by qualified personnel.
For the instrument to function correctly the optic system must be kept clean and must not reach temperatures higher than those specified. The maintenance department should ensure these working conditions with a periodical check of the cooling system and cleaning the lens.
Purge Air Supply
Air filter cleanliness must be checked at regular intervals.
Our suggestion is to check it every day, and then determine a correct time interval based on your experience.
If the optic system reaches temperatures higher than the working temperatures specified, it has to be recalibrated at the factory.
The air purge device is to be accurately checked, as the diffuser may become obstructed by contaminated air. When this happens, the air flow from the diffuser is not uniform, and dust particles appear on the lens. In this case, the diffuser should be washed in a detergent solution and blown with compressed air, then dried. Proper air filtering will solve this problem.
Water Supply
Verify the water flow according to your experience: daily first, and then when the system is running well, weekly. Check the thermometer temperature: it has to be high enough to prevent any condensation formation. Once the water continuity is defined, it's enough to verify the support temperature.
WARNING! If the temperature of the thermometer becomes too high due to the absence of water or to a partial flow interruption, it must be verified and re-calibrated by the manufacturer. Please call
Customer Service for an RMA to send your unit back for recalibration.
33
R40 / R60 Series Fixed Infrared Sensors User Manual
Optic Cleaning
Remove the connection wires from the terminal board.
Remove the thermometer from its support. Verify the cleanliness of the internal part of the cylinder by removing any dirt particles or oil.
If necessary, clean the lens with a very soft cloth and then reinstall the thermometer. Verify the alignment and reconnect everything. Use an air purge system to keep the lens clean.
Mounting Device
Verify at regular intervals that these devices are in good condition and that no damage has occurred.
Interconnection Cable
Verify at regular intervals that cables are in good condition and that no damage has occurred. Verify that the connections between the indicator and the acquisition system are secure.
Error Codes
Code
LOCK
Description Action mP in protection mode Return for Unlock
ERR Calibration data loss
Blank with Light ON Firmware data loss
Blank with Light OFF Electronic failure
Return for Calibration
Return for Firmware reload and Calibration
Return to factory
WARRANTY
Palmer Wahl Instruments, Inc.
234 Old Weaverville Road
Asheville, NC 28804
Phone: 800-4212853 • 828 -658-3131
FAX: 828-658-0728
Email: [email protected]
www.palmerwahl.com
34
R40 / R60 Series Fixed Infrared Sensors User Manual
Appendix I: Emissivity of Common Materials
How It Works
All solid objects emit infrared energy above absolute zero. The amount of energy emitted is proportional to the body temperature. Wahl’s Heat Spy® directs this energy by means of fixed focus optics into a sensitive detector, which is amplified and processed by the computer to temperature readings in °F or °C. It is fast, because IR energy travels at the speed of light, and the detector has a very low mass. The time constant is 0.1 second, about 10 times faster than conventional contact methods. Measurements are displayed in less than one second.
When to Use
Temperature at a Distance - You can stand 1 to 40 feet away and conveniently measure temperature of bearings, kilns, and furnace walls. You can locate hot spots in reactor shells, steam piping, and insulation surfaces. Specialty models can be used to up to 300 feet away from your temperature target.
Temperature of Moving Material - Moving materials require two Heat Spy features not available by any other method: non-contact with the process material, and fast-measurement of rapidly moving materials. Measure continuously moving solid materials like plastic film and extrusions, pulp and paper, textiles, rubber, steel sheets, coating, or painting.
Temperature of Small, Low Mass Material - Electronic components or other small or low mass items can be measured with a Wahl Heat Spy, where a contact thermometer would change the measured condition through heat transfer.
Temperature of areas too hot for personnel - In foundries, forging shops, glass factories and power plants, the Wahl Heat Spy allows you to stand away from the heat or high voltage.
Temperature of Rough Surfaces - The Wahl Heat Spy does not require contact with the target. It measures rough and uneven surfaces and averages temperature readings of the observed target area.
It affords users an efficient method of measuring the temperature of granular materials, rough castings, and forgings.
Temperature requiring quick measurement - Opening and closing of injection molding dies requires temperature to be measured in less than 2 seconds. The Wahl Heat Spy is ideal for use with rotating machinery, like large motor armatures and drive couplings.
35
R40 / R60 Series Fixed Infrared Sensors User Manual
Emissivity
Emissivity in IR measurement refers to the ability of the measured surface to emit radiation. Surfaces vary in emissivity and this must be taken into account before accurate readings can be obtained. The emissivity ratio represents the amount of radiated energy that the measured surface returns to the instrument. A return of 100% of the energy is measured as 1.0 emissivity. If all the radiated energy is reflected and/or transmitted and none emitted, the emissivity ratio is 0.0. A perfect radiator such as a black body, has a 1.0 emissivity ratio and a very shiny or highly-polished surface has a ratio of 0.2 or lower. Most textured or painted surfaces have an emissivity ratio of around .95. Most Wahl Heat Spy thermometers feature adjustable emissivity from 0.10 to 1.00. Other Heat Spy units that are not adjustable are set at 0.95 and include instructions on how to adjust readings to take low emissivity into account.
Hints for Choosing and Using
Know your target
What is the emissivity? How clear is the optical (IR) path to the target? Are reflections a concern? What is the expected temperature range you will need to measure?
Know your spot size
The target must completely fill the sensitive area in order to get accurate readings.
Have realistic expectations
If you need to know the temperature within 1 degree Fahrenheit, you should use another technology, like a RTD contact probe.
Stabilization
Allow the IR thermometer to stabilize at the temperature where it will be used for at least 30 minutes for an accurate reading.
Keep the lens clean
Also watch out for dusty or vapor-filled optical paths.
Accuracy concerns - If accuracy is a concern, buy a model with adjustable emissivity. If you’re just looking for “hot spots” a fixed emissivity model will work well.
Always remember - You are only measuring surface temperature. If you need the temperature of a mixture, use an immersion probe and an electronic thermometer.
36
R40 / R60 Series Fixed Infrared Sensors User Manual
Emissivity Table
Metals
Spectral Range
Aluminum
Non-Oxidized
Oxidized
Alloy A 3003
Oxidized
Roughened
Polished
Brass
Polished
Burnished
Oxidized
Carbon
Non-oxidized
Graphite
Chromium
Copper
Polished
Roughened
Gold
Oxidized
Haynes Alloy
Inconel
Oxidized
Sandblasted
Electropolished
Iron
Oxidized
Non-oxidized
Rusted
Molten
Iron, Cast
Oxidized
Non-oxidized
Molten
Iron Wrought
Dull
Lead
Polished
Rough
Oxidized
Magnesium
Mercury
Molybdenum
Oxidized
Non-oxidized
Monel (Ni-Cu)
Nickel
Oxidized
Electrolytic
Platinum
Black
1.0 µm
0.1-0.2
0.4
--
0.2-0.8
0.1-0.2
0.8-0.95
--
0.6
0.8-0.95
0.8-0.9
0.4
0.05
0.05-0.2
0.2-0.8
0.3
0.5-0.9
0.4-0.9
0.3-0.4
0.2-0.5
0.4-0.8
0.35
--
0.35
0.7-0.9
0.35
0.35
0.9
0.35
0 65
--
0.3-0.8
--
0.5-0.9
0.25-0.35
0.3
0.8-0.9
0.2-0.4
--
1.6 µm
0.02-0.2
0.4
0.4
0.2-0.6
0.02-0.1
0.01-0.05
--
0.6
0.8-0.9
0.8-0.9
0.4
0.03
0.05-0.2
0.2-0.9
0.01-0.1
0.6-0.9
0.6-0.9
0.3-0.6
0.25
0.5-0.9
0.1-0.3
0.6-0.9
0.4-0.6
0.7-0.9
0.3
0.3-0.4
0.9
0.05-0.2
0.6
0.3-0.7
0.05-0.3
0.05-0.15
0.4-0.9
0.1-0.3
0.2-0.6
0.4-0.7
0.1-0.3
0.95
2.3 µm
0.02-0.2
0.2-0.4
0.4
0.2-0.6
0.02-0.1
0.01-0.05
0.4
0.6
0.8-0.9
0.8-0.9
0.05-0.3
0.03
0.05-0.2
0.7-0.9
0.01-0.1
0.6-0.9
0.6-0.9
0.3-0.6
0.25
0.5-0.9
0.1-0.3
0.6-0.9
0.4-0.6
0.7-0.9
0.1-0.3
0.3-0.4
0.95
0.05-0.2
0.6
0.3-0.7
0.05-0.3
0.05-0.15
0.4-0.9
0.1-0.3
0.2-0.6
0.4-0.7
0.1-0.3
0.95
5.1 µm
0.03
0.05-0.15
0.5-0.8
0.01-0.1
0.3-0.8
0.6-0.9
0.3-0.6
0.15
0.6-0.9
0.05-0.25
0.5-0.8
--
0.65-0.95
0.25
0.2-0.3
0.9
0.05-0.2
0.4
0.2-0.6
0.03-0.15
0.05-0.15
0.3-0.7
0.1-0.15
0.1-0.5
0.3-0.6
0.1-0.15
0.9
0.02-0.2
0.2-0.4
0.4
0.1-0.4
0.02-0.1
0.01-0.05
0.3
0.5
0.8-0.9
0.7-0.9
0.03-0.3
8-14 µm
0.02-0.1
0.2-0.4
0.3
0.1-0.3
0.02-0.1
0.01-0.05
0.3
0.5
0.8-0.9
0.7-0.8
0.02-0.2
0-03
0.05-0.1
0.4-0.8
0.01-0.1
0.3-0.8
0.7-0.95
0.3-0.6
0.15
0.5-0.9
0.05-0.2
0.5-0.7
--
0.6-0.95
0.2
0.2-0.3
0.9
0.05-0.1
0-4
0.2-0.6
0.02-0.1
0.05-0.15
0.2-0.6
0.1
0.1-0.14
0.2-0.5
0.05-0.15
0.9
37
Silver
Spectral Range
Steel
Cold-Rolled
Ground Sheet
Polished Sheet
Molten
Oxidized
Stainless
Tin (Non-oxidized)
Titanium
Polished
Oxidized
Tungsten
Polished
Zinc
Oxidized
Polished
Non-Metals
Asbestos
Asphalt
Basalt
Carborundum
Ceramic
Clay
Concrete
Cloth
Glass
Plate
"Gob"
Gravel
Gypsum
Ice
Limestone
Paint
Paper (any color)
Plastic (opaque, >20 mils)
Sand
Snow
Soil
Water
Wood (natural)
0.04
1.0 µm
0.8-0.9
--
0.35
0.35
0.8-0.9
0.35
0.25
0.5-0.75
--
0.35-0.4
0.60
0.5
1.0 µm
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
0.9
--
--
--
0.4
--
0.65
--
R40 / R60 Series Fixed Infrared Sensors User Manual
0.02
1.6 µm
0.8-0.9
--
0.25
0.25-0.4
0.8-0.9
0.2-0.9
0.1-0.3
0.3-0.5
0.6-0.8
0.1-0.6
0.1-0.3
0.15
0.05
0.02
2.3 µm
0.8-0.9
--
0.25
0.25-0.4
0.8-0.9
0.2-0.9
0.1-0.3
0.3-0.5
0.6-0.8
0.1-0.6
0.1-0.3
0.15
0.05
0.02
5.1 µm
0.8-0.9
0.5-0.7
0.15
0.1-0.2
0.7-0.9
0.15-0.8
0.05
0.1-0.3
0.5-0.7
0.05-0.5
0.05-0.25
0.1
0.03
0.02
8-14 µm
0.7-0.9
0.4-0.6
0.1
--
0.7-0.9
0.1-0.8
0.05
0.05-0.2
0.5-0.6
0.03
0.03-0.1
0.1
0.02
1.6 µm
--
--
--
--
--
--
0.8
--
--
0.95
0.8-0.95
0.8-0.95
0.9
--
--
--
--
--
0.2
0.4-0.9
--
--
--
2.3 µm
--
--
--
--
--
--
0.8
--
--
0.95
0.8-0.95
0.8-0.95
0.9
--
--
--
--
--
0.2
0.4-0.9
--
--
--
5.1 µm
0.9
0.95
0.7
0.9
0.85-0.95
0.85-0.95
0.9
0 95
0.98
0.9
0.95
0.4-0.97
--
0.4-0.98
--
0.95
0.95
0.9
0.9
--
--
--
0.9-0.95
8-14 µm
0.95
0.95
0.7
0.9
0.95
0.95
0.95
0.95
0.85
0.95
0.8-0.95
0.98
0.98
0.9-0.95
0.95
0.95
0.95
0.9
0.9
0.9-0.98
0.93
0.9-0.95
38
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