Raytek MI3 Operating Manual

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MI3

Miniature Infrared Sensor

Operating Instructions

Rev. G Nov/2015

55201

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Raytek Corporation
Worldwide Headquarters
Santa Cruz, CA USA
Tel:	+1 800 227 – 8074
	(USA and Canada only)
+1 831 458 – 3900
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Berlin, Germany
Tel: +49 30 4 78 00 80		info@raytek.fr	ukinfo@raytek.com
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Fluke Service Center
Beijing, China
Tel:	+86 10 6438 4691

info@raytek.com.cn

Internet: http://www.raytek.com/

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WARRANTY

The manufacturer warrants this product to be free from defects in material and workmanship under normal use and service for the period of two years from date of purchase, except as hereinafter provided. This warranty extends only to the original purchaser (a purchase from the manufacturer or a licensed distributor of the manufacturer is an original purchase). This warranty shall not apply to fuses, batteries, or any product which has been subject to misuse, neglect, accident, or abnormal conditions of operation.

In the event of failure of a product covered by this warranty, the manufacturer will repair the instrument when it is returned by the purchaser, freight prepaid, to an authorized Service Facility within the applicable warranty period, provided manufacturer’s examination discloses to its satisfaction that the product was defective. The manufacturer 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 the manufacturer, 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. THE MANUFACTURER SHALL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER IN CONTRACT, TORT, OR OTHERWISE.

SOFTWARE WARRANTY

The manufacturer does not warrant that the software described herein will function properly in every hardware and software environment. This software may not work in combination with modified or emulated versions of Windows operating environments, memory-resident software, or on computers with inadequate memory. The manufacturer warrants that the program disk is free from defects in material and workmanship, assuming normal use, for a period of one year. Except for this warranty, the manufacturer makes no warranty or representation, either expressed or implied, with respect to this software or documentation, including its quality, performance, merchantability, or fitness for a particular purpose. As a result, this software and documentation are licensed “as is,” and the licensee (i.e., the user) assumes the entire risk as to its quality and performance. The liability of the manufacturer under this warranty shall be limited to the amount paid by the User. In no event shall the manufacturer be liable for any costs including but not limited to those incurred as a result of lost profits or revenue, loss of use of the computer software, loss of data, the cost of substitute software, claims by third parties, or for other similar costs. The manufacturer’s software and documentation are copyrighted with all rights reserved. It is illegal to make copies for another person.

Specifications subject to change without notice.

The device complies with the requirements of the European Directives.

EC – Directive 2004/108/EC (EMC)

EC – Directive 2006/95/EC (low voltage)

	Content
CONTENT.............................................................................................................................................................	5
1 SAFETY INSTRUCTIONS............................................................................................................................	10
2 DESCRIPTION................................................................................................................................................	13
2.1 OVERVIEW COMM BOXES ··························································································································· 14
3 TECHNICAL DATA.......................................................................................................................................	15
3.1 MEASUREMENT SPECIFICATION ················································································································· 15
3.1.1 Sensing Heads .....................................................................................................................................	15
3.1.2 Comm Box ...........................................................................................................................................	16
3.1.2.1 Comm Box (metal) .....................................................................................................................................	16
3.1.2.2 Comm Box (DIN)........................................................................................................................................	16

3.2OPTICAL CHARTS ······································································································································· 17

3.3ELECTRICAL SPECIFICATION······················································································································· 18

3.3.1 Comm Box, all models .........................................................................................................................	18
3.3.2 Comm Box (metal) ..............................................................................................................................	18
3.3.3 Comm Box (DIN 6TE, analog) ...........................................................................................................	18
3.4 ENVIRONMENTAL SPECIFICATION ············································································································· 19
3.4.1 Sensing Head.......................................................................................................................................	19
3.4.2 Comm Box (metal) ..............................................................................................................................	19
3.4.3 Comm Box (DIN)................................................................................................................................	20
3.4.4 LTH Electronics ..................................................................................................................................	20
3.5 DIMENSIONS ··············································································································································· 21
3.5.1 Sensing Head LT, G5 ..........................................................................................................................	21
3.5.2 Sensing Head LTH ..............................................................................................................................	21
3.5.3 Sensing Head 1M, 2M ........................................................................................................................	21
3.5.4 Comm Box (metal) ..............................................................................................................................	21
3.5.5 Comm Box (DIN)................................................................................................................................	22
3.6 SCOPE OF DELIVERY···································································································································· 22
3.6.1 Sensing Head.......................................................................................................................................	22
3.6.2 Comm Box ...........................................................................................................................................	23
4 BASICS .............................................................................................................................................................	24

4.1MEASUREMENT OF INFRARED TEMPERATURE ··························································································· 24

4.2EMISSIVITY OF TARGET OBJECT ·················································································································· 24

4.3AMBIENT TEMPERATURE ···························································································································· 24

4.4ATMOSPHERIC QUALITY····························································································································· 24

4.5ELECTRICAL INTERFERENCE ······················································································································· 24


5 INSTALLATION ............................................................................................................................................		26
5.1	POSITIONING··············································································································································· 26
5.1.1 Distance to Object ...............................................................................................................................		26
5.2	INSTALLATION SCHEMES···························································································································· 26
5.2.1 Comm Box (metal) ..............................................................................................................................		26
5.2.2 Comm Box (DIN)................................................................................................................................		27
5.3	WIRING, HEAD CABLE ······························································································································· 27
5.3.1 Comm Box (metal) ..............................................................................................................................		28
5.3.2 Comm Box (DIN)................................................................................................................................		29

5.4 WIRING, TERMINAL ··································································································································· 29
5.4.1 Comm Box (metal) ..............................................................................................................................	29
5.4.2 Comm Box (DIN 3TE) .......................................................................................................................	30
5.4.3 Comm Box (DIN 4 TE) ......................................................................................................................	31
5.4.4 Comm Box (DIN 6 TE) ......................................................................................................................	32
5.4.5 EMI Resistance for Comm Box (DIN)................................................................................................	35
5.5 POWER ON PROCEDURE ···························································································································· 36
5.5.1 One Head System ...............................................................................................................................	36
5.5.2 Multiple Heads – Random Address Assignment ...............................................................................	36
5.5.3 Multiple Heads – User Controlled Address Assignment ...................................................................	36

5.6USB····························································································································································· 37

5.7FIELDBUS ···················································································································································· 39

5.7.1 Addressing ..........................................................................................................................................	39
5.7.2 RS485 based Installations...................................................................................................................	39
6 OUTPUTS ........................................................................................................................................................	40

6.1ANALOG OUTPUT OUT1 ··························································································································· 40

6.2ANALOG OUTPUT OUT2 ··························································································································· 40

6.3ANALOG OUTPUTS OUT1 - OUT4············································································································ 41

6.4ALARM OUTPUT RELAY··························································································································· 41

6.5THERMOCOUPLE OUTPUT TC···················································································································· 42

7 INPUTS ............................................................................................................................................................

7.1EMISSIVITY (ANALOG)································································································································ 43

7.2EMISSIVITY (DIGITAL) ································································································································· 44

7.3AMBIENT TEMPERATURE COMPENSATION································································································ 44

7.4TRIGGER/HOLD ·········································································································································· 46

7.5LASER SWITCHING ····································································································································· 47

8 OPERATION...................................................................................................................................................

8.1CONTROL PANEL ······································································································································· 48

8.2<HEAD> PAGE ············································································································································ 50

8.3<BOX SETUP> PAGE ···································································································································· 51

8.4<BOX INFO> PAGE ······································································································································ 53

8.5POST PROCESSING ······································································································································ 53

8.5.1 Averaging ...........................................................................................................................................	53
8.5.2 Peak Hold............................................................................................................................................	54
8.5.3 Valley Hold .........................................................................................................................................	54
8.5.4 Advanced Peak Hold...........................................................................................................................	55
8.5.5 Advanced Valley Hold ........................................................................................................................	56
8.5.6 Advanced Peak Hold with Averaging.................................................................................................	56
8.5.7 Advanced Valley Hold with Averaging ..............................................................................................	56
9 OPTIONS.........................................................................................................................................................	57
9.1 WATER COOLED HOUSING (1M, 2M HEADS)··························································································· 57
9.1.1 Avoidance of Condensation ................................................................................................................	58
9.2 INTRINSIC SAFETY ······································································································································ 59
9.2.1 Sensing Heads ....................................................................................................................................	59
9.2.2 Ex Power Supply RAYMI3ACISx .....................................................................................................	59
9.2.3 Installation..........................................................................................................................................	60

9.2.4 Mains Supply ......................................................................................................................................	61
9.2.5 Ex Power Supply 115MI3ACIS / 230MI3ACIS ................................................................................	63
10 ACCESSORIES..............................................................................................................................................	64
10.1 ACCESSORIES (ALL MODELS) ···················································································································· 64
10.1.1 Multi-Channel Box ...........................................................................................................................	64
10.1.2 USB/RS485 Adapter .........................................................................................................................	67
10.2 ACCESSORIES (LT, G5 HEADS)················································································································· 68
10.2.1 Adjustable Mounting Bracket ...........................................................................................................	69
10.2.2 Fixed Mounting Bracket ...................................................................................................................	70
10.2.3 Air Purge Jacket ................................................................................................................................	70
10.2.4 Air Cooling System ...........................................................................................................................	71
10.2.5 Right Angle Mirror...........................................................................................................................	75
10.2.6 Protective Windows ..........................................................................................................................	76
10.2.7 Close Focus Lens ...............................................................................................................................	76
10.3 ACCESSORIES (1M, 2M HEADS) ··············································································································· 78
10.3.1 Fixed Mounting Bracket ...................................................................................................................	79
10.3.2 Adjustable Mounting Bracket ...........................................................................................................	80
10.3.3 Isolation Kit.......................................................................................................................................	81
10.3.4 Air Purge Collar................................................................................................................................	81
10.3.5 Right Angle Mirror...........................................................................................................................	82
10.3.6 Protective Window ............................................................................................................................	83
11 MAINTENANCE ..........................................................................................................................................	84

11.1TROUBLESHOOTING MINOR PROBLEMS··································································································· 84

11.2FAIL-SAFE OPERATION ····························································································································· 84

11.3CLEANING THE LENS ································································································································ 85

11.4SENSING HEAD EXCHANGE······················································································································ 86

12 DATATEMP MULTIDROP SOFTWARE ................................................................................................

12.1SOFTWARE FEATURES ······························································································································· 87

12.2PC REQUIREMENTS··································································································································· 87

12.3USB DRIVER INSTALLATION ···················································································································· 87

12.4SOFTWARE LAUNCH ································································································································· 87

13 RS485 ...............................................................................................................................................................	88
13.1 WIRING ····················································································································································· 88
13.1.1 Comm Box (metal).............................................................................................................................	88
13.1.2 Comm Box (DIN)..............................................................................................................................	88
13.2 ASCII PROGRAMMING ····························································································································· 88
14 PROFIBUS......................................................................................................................................................	89
14.1 WIRING ····················································································································································· 89
14.1.1 Comm Box (metal).............................................................................................................................	89
14.1.2 Comm Box (DIN)..............................................................................................................................	91
14.2 PROGRAMMING ········································································································································ 92
14.2.1 Parameter Data .................................................................................................................................	92
14.2.2 Input Data.........................................................................................................................................	93
14.2.3 Output Data......................................................................................................................................	94
14.2.4 Diagnose Data...................................................................................................................................	94
15 MODBUS .......................................................................................................................................................	97

15.1 WIRING····················································································································································· 97
15.1.1 Comm Box (metal) ............................................................................................................................	97
15.1.2 Comm Box (DIN) .............................................................................................................................	98
15.2 PROGRAMMING ········································································································································ 99
15.2.1 Supported Functions ........................................................................................................................	99
15.2.2 Parameter Data.................................................................................................................................	99
15.2.2.1 Box Parameter...........................................................................................................................................	99
15.2.2.2 Head Parameter......................................................................................................................................	101
16 ETHERNET..................................................................................................................................................	103
16.1 WIRING··················································································································································· 103
16.1.1 Comm Box (metal) ..........................................................................................................................	103
16.1.2 Comm Box (DIN) ...........................................................................................................................	103
16.2 ADDRESSING··········································································································································· 104
16.2.1 MI3 .................................................................................................................................................	104
16.2.2 PC Network Adapter ......................................................................................................................	105

16.3ASCII PROGRAMMING··························································································································· 106

16.4HTTP SERVER ·········································································································································· 107

16.4.1 Data Logging ..................................................................................................................................	107
17 PROFINET ...................................................................................................................................................	109
17.1 WIRING··················································································································································· 109
17.1.1 Status LED .....................................................................................................................................	109
17.2 PROGRAMMING ······································································································································ 110
17.2.1 I/O Device Configuration ...............................................................................................................	110
17.2.1.1 GSD File...................................................................................................................................................	110
17.2.1.2 Configuration..........................................................................................................................................	110
17.2.2 Parameter Setting ...........................................................................................................................	110
17.2.2.1 Parameters of the Fieldbus Communicator ........................................................................................	111
17.2.2.2 Parameters of the Pyrometer Module..................................................................................................	113
17.2.3 Input Data Structure......................................................................................................................	114
17.2.3.1 Input Data of Fieldbus Communicator ...............................................................................................	114
17.2.3.2 Input Data of Pyrometer Module.........................................................................................................	114
17.2.4 Output Data Structure...................................................................................................................	114
17.2.5 Diagnostics .....................................................................................................................................	114
18 ASCII PROGRAMMING .........................................................................................................................	116

18.1TRANSFER MODES·································································································································· 116

18.2COMMAND STRUCTURE ························································································································· 116

18.3ADDRESSING··········································································································································· 117

18.4DEVICE INFORMATION··························································································································· 118

18.5DEVICE SETUP ········································································································································ 118

18.5.1 Temperature Calculation ................................................................................................................	118
18.5.2 Temperature Pre-Processing...........................................................................................................	118
18.5.3 Emissivity Setting and Alarm Set points .......................................................................................	119
18.5.4 Post Processing ...............................................................................................................................	119

18.6DYNAMIC DATA····································································································································· 120

18.7DEVICE CONTROL ·································································································································· 120

18.7.1 Output for the Target Temperature................................................................................................	120
18.7.2 Analog Output, Scaling .................................................................................................................	120
18.7.3 Alarm Output.................................................................................................................................	120

18.7.4 Factory default values .....................................................................................................................	121
18.7.5 Lock Mode .......................................................................................................................................	121
18.7.6 Mode Setting for the Digital Input FTC3 .......................................................................................	121
18.7.7 Ambient Background Temperature Compensation .........................................................................	121
18.8 COMMAND SET ······································································································································· 121
18.8.1 ASCII Commands for Ethernet and Profinet ..................................................................................	127
19 APPENDIX ...................................................................................................................................................	128

19.1DETERMINATION OF EMISSIVITY ············································································································ 128

19.2TYPICAL EMISSIVITY VALUES ················································································································· 128

19.3ATEX CERTIFICATE OF CONFORMITY FOR SENSING HEADS································································· 132

19.4ATEX CERTIFICATE OF CONFORMITY FOR EX POWER SUPPLY ····························································· 135

19.5IECEX CERTIFICATE OF CONFORMITY FOR SENSING HEADS ································································ 138

19.6IECEX CERTIFICATE OF CONFORMITY FOR POWER SUPPLY·································································· 142

20 NOTES ..........................................................................................................................................................

146

Safety Instructions

1 Safety Instructions

This document contains important information, which should be kept at all times with the instrument during its operational life. Other users of this instrument should be given these instructions with the instrument. Eventual updates to this information must be added to the original document. The instrument should 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. The instrument 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

The 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 operational safety and functionality of the instrument.

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MI3

Safety Instructions

Safety Symbols

AC (Alternating Current)

DC (Direct Current)

Risk of danger. Important information. See manual.

Hazardous voltage. Risk of electrical shock.

Helpful information regarding the optimal use of the instrument.

Earth ground

Protective ground

Fuse

Normally-open (NO) relay

Normally-closed (NC) relay

Switch or relay contact

DC power supply

Conforms to European Union directive.

Disposal of old instruments should be handled according to professional and environmental regulations as electronic waste.

Conforms to relevant South Korean EMC Standards.

MI3

Rev. G Nov/2015

Safety Instructions

The instrument can be equipped with a Class 2 laser. Class 2 lasers shine only within the visible spectrum at an intensity of 1 mW. Looking directly into the laser beam can produce a slight, temporary blinding effect, but does not result in physical injury or damage to the eyes, even when the beam is magnified by optical aids. At any rate, closing the eye lids is encouraged when eye contact is made with the laser beam. Pay attention to possible reflections of the laser beam. The laser functions only to locate and mark surface measurement targets. Do not aim the laser at people or animals.

To prevent possible electrical shock, fire, or personal injury follow these guidelines:

Read all safety Information before you use the product.

Use the product only as specified, or the protection supplied by the product can be compromised.

Carefully read all instructions.

Do not use and disable the product if it is damaged.

Do not use the product if it operates incorrectly.

Make sure the ground conductor in the mains power cord is connected to a protective earth ground. Disruption of the protective earth could put voltage on the chassis that could cause death.

Replace the mains power cord if the insulation is damaged or if the insulation shows signs of wear.

Use in 110/230 VAC 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.

The system integrator is responsible for the final safety of the system.

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MI3

Description

2 Description

The MI3 sensor series is the next generation of the well-established “MI class” sensor platform. It will be capable of covering a broad range of applications. The MI3 sensor series introduces various network communications, an externally accessible user interface, improved temperature measurement specifications and capabilities at an economic price.

The MI3 series comes with the following highlights:

Rugged sensing heads survive ambient temperatures to 120°C (248°F) including optimized performance due to ambient temperature calibration across full ambient temperature range

Special high ambient temperature heads available withstanding up to 180°C (356°F) without any cooling (LTH models)

Multi head system architecture to allow multiple sensing heads to be multiplexed from a single communication box

Stand-alone OEM sensing head operation

Intrinsically safe sensing head with Ex Power Supply for installation in hazardous areas (ATEX)

Precision high resolution optics up to 100:1

Up to 10 ms response time

Alarm status indicator

Standard USB 2.0 digital interface

Analog outputs with galvanic isolation

Alarm relay output

Serial RS485 communication interface with the protocols: ASCII, Profibus, Modbus®1

Ethernet communication interface with the protocols: ASCII, http, Profinet IO

Automatic sensing head identification

Includes DataTemp® Multidrop software for sensor configuration and monitoring

Field calibration software

1 Modbus is a registered trademark of Modbus Organization, Inc.

MI3

Rev. G Nov/2015

Description

2.1 Overview Comm Boxes

MI3COMM

MI3MCOMMN

MI3MCOMM

MI3MCOMM…

metal box

DIN 3TE

DIN 4TE

DIN 6TE

Part number

MI3COMM…

MI3MCOMMN

MI3MCOMM

MI3MCOMM…

Spectral Heads1

LT, G5, 1M, 2M

Head Support

by firmware

8 heads

by terminal

1 head

4 heads

Control panel

Display



–



Buttons



–



Outputs

mA/V

–

4x (optional …A)

–

Relay

Inputs

Emissivity (analog)



–

Emissivity (digital)



–

Ambient Temp. Compensation



–

Trigger/Hold Function



Laser Switching



Interfaces

USB

Standard

RS485

Option (…4)

–

Standard

–

Protocols

ASCII

Standard

Profibus

Option (…P1, …P2)

–

Option (…P)

Modbus

Option (…M)

–

Option (…M)

Profinet

Option (…PN)

–

Option (…PN)

Ethernet

Option (…E)

–

Option (…E)

Table 1: Capabilities of Communication Boxes

1 1M, 2M spectral heads require box firmware revision 2.11 or higher

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MI3

Technical Data

3 Technical Data

3.1 Measurement Specification

3.1.1 Sensing Heads

Temperature Range

LTS02, LTS10, LTH10	-40 to 600°C (-40 to 1112°F)
LTS20, LTF, LTH20	0 to 1000°C (32 to 1832°F)
G5	250 to 1650°C (482 to 3002°F)
2M	250 to 1400°C (482 to 2552°F)
1M	500 to 1800°C (932 to 3272°F)
Spectral Response
LT	8 to 14 µm
G5	5 µm
2M	1.6 µm
1M	1 µm
Optical Resolution D:S1
LTS	2:1, 10:1, 22:1 typ. (21:1 guaranteed)
LTF	10:1
LTH	10:1, 22:1 typ. (21:1 guaranteed)
G5	10:1
1M, 2M	100:1
	SF1 optics: 2 mm spot @ 200 mm distance (0.08 in @ 7.9 in)
	SF3 optics: 22 mm spot @ 2200 mm distance (0.87 in @ (8.7 in)
Response Time2
LTS (standard), LTH	130 ms
LTF (fast)	20 ms
G5	130 ms
1M, 2M	10 ms3
Accuracy4
LT, G5	± (1% of reading or 1°C), whichever is greater
	± 2°C (± 4°F) for target temp. < 20°C (68°F)
1M, 2M	± (0.5% of reading + 2°C)
Repeatability
LT, G5	± 0.5% of reading or ± 0.5°C, whichever is greater
1M, 2M	± 0.25% of reading + 1°C
Temperature Coefficient5
LT, G5	± 0.05 K / K or ± 0.05% of reading / K, whichever is greater
1M, 2M	0.01% of reading / K

1at 90% energy in minimum and distance 400 mm (15.7 in.)

290% response

330 ms – if more than one sensing head drives an analog output of the communication box

4at ambient temperature 23°C ±5°C (73°F ±9°F), ε = 1.0, and calibration geometry

5ambient temperature deviations related to 23°C

MI3

Rev. G Nov/2015

Technical Data

3.1.2 Comm Box

Accuracy
mA/V output	± 1°C
	(corresponds to ± 0.015 mA for the current output at 0-20 mA
	or ± 0.015 mA for the current output at 4-20 mA
	or 4 mV for the voltage output at 0-5 V
	or 8 mV for the voltage output at 0-10 V)
TC output	± 1.5°C
Temperature Resolution
mA/V Output	± 0.1°C (± 0.2°F)1 / 12 bit, for Comm Box (metal)
mA/V Output	± 0.02°C (± 0.04°F) / 16 bit, for Comm Box (DIN 6TE, analog)
Temperature Coefficient
mA/V Output	± 0.02 K / K
TC Output	± 0.05 K / K
Emissivity
All models	0.100 to 1.100
Transmission
All models	0.100 to 1.000
3.1.2.1 Comm Box (metal)
Loop Time
mA/V Output
LTS, G5	8 ms
LTF, 1M, 2M	4 ms
digital	18 ms * number of connected heads
3.1.2.2 Comm Box (DIN)
Loop Time
digital
LTS, G5	8 ms2 * number of connected heads
LTF, 1M, 2M	4 ms3 * number of connected heads

1for a zoomed temperature span of < 500°C (932°F)

2per bus channel

3per bus channel

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MI3

Technical Data

3.2 Optical Charts

Figure 1: Spot Size Charts

MI3

Rev. G Nov/2015

Technical Data

3.3 Electrical Specification

For an overview to the capabilities of the communication boxes, see section 2.1 Overview Comm Boxes, page 14.

3.3.1 Comm Box, all models

Voltage Supply	8 to 32 VDC
Power Consumption	max. 6 W

Alarm Output

1 potential-free relay output, 48 V / 300 mA

Relay with wear-free contacts (solid state relay) for target temperature or head ambient temperature, electrically isolated from power supply

USB Interface

Version: 2.0

Connector on the board: type Mini-B

3.3.2 Comm Box (metal)

Analog Outputs
Output 1	0 to 5/10 V output for head ambient temperature and object temperature
	electrically not isolated from power supply
Thermocouple	J: -40 to 600°C (-40 to 1112°F)
	K: -40 to 800°C (-40 to 1472°F)
	R/S: 250 to 1800°C (482 to 3272°F)
Output 2	0 to 20 mA (active), or
	4 to 20 mA (active), or
	0 to 5 V, or
	0 to 10 V
	electrically not isolated from power supply

External Inputs

3 inputs are available useable in different modes:

FTC1-3	Emissivity control: 3 bit digital coded, 0 to VSS
FTC1	Emissivity control: analog, 0 to 5 VDC
FTC2	Ambient temperature compensation analog: 0 to 5 VDC
FTC3	for trigger/hold/laser functions, 0 to VSS
3.3.3 Comm Box (DIN 6TE, analog)
Analog Outputs
Output 1 to 4	0 to 20 mA (active), or
	4 to 20 mA (active), or
	0 to 5 V, or

0 to 10 V

Each output is galvanically isolated from the other and from power supply!

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MI3

Technical Data

3.4 Environmental Specification

3.4.1 Sensing Head

Ambient Temperature
LT, G5	-10 to 120°C (14 to 248°F)
LTH	-10 to 180°C (14 to 356°F)
1M, 2M	0 to 120°C (32 to 248°F)
Laser (1M, 2M)	automatic switch off at 65°C (149°F)
Storage Temperature
LTH	-20 to 180°C (-4 to 356°F)
all other models	-20 to 120°C (-4 to 248°F)
Rating	IP65 (NEMA-4) / IEC 60529
Relative Humidity	10% to 95% non-condensing
EMC	EN 61326-1:2006
KCC	Electromagnetic Compatibility Applies to use in Korea only. Class A
	Equipment (Industrial Broadcasting & Communication Equipment)
	This product meets requirements for industrial (Class A) electromagnetic wave equipment and
	the seller or user should take notice of it. This equipment is intended for use in business
	environments and is not to be used in homes.
Vibration	11 to 200 Hz, 3 g above 25 Hz operating, 3 axes / IEC 60068-2-6
Shock	50 g, 11 ms, operating, 3 axes / IEC 60068-2-27
Weight
LT, G5	50 g (1.8 oz)
1M, 2M	233 g (8.2 oz)
Material
Head	Stainless steel
Head Cable
LTH	Teflon®
all other models	PUR (Polyurethane), Halogen free, Silicone free

Teflon develops poisonous gasses when it comes into contact with flames!

3.4.2 Comm Box (metal)

Ambient Temperature	-10 to 65°C (14 to 149°F)
Storage Temperature	-20 to 85°C (-4 to 185°F)
Rating	IP65 (NEMA-4) / IEC 60529
Relative Humidity	10% to 95% non-condensing
EMC	EN 61326-1:2006

MI3

Rev. G Nov/2015

Technical Data

KCC	Electromagnetic Compatibility Applies to use in Korea only. Class A
	Equipment (Industrial Broadcasting & Communication Equipment)
	This product meets requirements for industrial (Class A) electromagnetic
	wave equipment and the seller or user should take notice of it. This
	equipment is intended for use in business environments and is not to be
	used in homes.
Vibration	11 to 200 Hz, 3 g above 25 Hz operating, 3 axes / IEC 60068-2-6
Shock	50 g, 11 ms, operating, 3 axes / IEC 60068-2-27
Weight	370 g (13 oz)
Material	die-cast zinc enclosure

3.4.3 Comm Box (DIN)

Ambient Temperature	-10 to 65°C (14 to 149°F)
Storage Temperature	-20 to 85°C (-4 to 185°F)
Relative Humidity	10% to 95% non-condensing
EMC	EN 61326-1:2006
KCC	Electromagnetic Compatibility Applies to use in Korea only. Class A
	Equipment (Industrial Broadcasting & Communication Equipment)
	This product meets requirements for industrial (Class A) electromagnetic
	wave equipment and the seller or user should take notice of it. This
	equipment is intended for use in business environments and is not to be
	used in homes.
Vibration	11 to 200 Hz, 3 g above 25 Hz operating, 3 axes / IEC 60068-2-6
Shock	50 g, 11 ms, operating, 3 axes / IEC 60068-2-27
Weight	125 g (4.4 oz)
Material	molded plastic

3.4.4 LTH Electronics

Ambient Temperature	-10 to 65°C (14 to 149°F)
Storage Temperature	-20 to 85°C (-4 to 185°F)
Rating	IP65 (NEMA-4) / IEC 60529

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MI3

Technical Data

3.5 Dimensions

3.5.1 Sensing Head LT, G5

Standard cable length 1 m (3 ft.)

Ø 5 mm (0.2 in)

Figure 2: Dimensions of LT, G5 Sensing Heads

3.5.2 Sensing Head LTH

Figure 3: Dimensions of LTH Sensing Head with separated Electronics

3.5.3 Sensing Head 1M, 2M

Standard cable length 1 m (3 ft)

Ø 5 mm (0.2 in)

Figure 4: Dimensions of 1M, 2M Sensing Heads

3.5.4 Comm Box (metal)

The box is equipped with three cable feed-through ports – two with IP65 compatible sealing glands, a third sealing gland comes for boxes with fieldbus communications (RS485, Profibus etc.). Boxes without fieldbus have a plugged expansion feed-through port instead (M12x1.5 thread).

MI3

Rev. G Nov/2015

Technical Data

Figure 5: Dimensions of Communication Box

3.5.5 Comm Box (DIN)

The boxes come in a standard DIN rail size in accordance to EN 50022-35x7.5 (DIN 43880).


Width	MI3MCOMMN	MI3MCOMM	MI3MCOMM…
X	DIN 3TE:	DIN 4TE:	DIN 6TE:
	53.6 mm (2.1 in)	71.6 mm (2.8 in)	107.6 mm (4.2 in)

Figure 6: Dimensions for Comm Boxes (DIN)

3.6 Scope of Delivery

3.6.1 Sensing Head

Sensing head with cable

Integrated Laser (1M, 2M heads only)

Mounting nut

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MI3

Technical Data

3.6.2 Comm Box

Communication box

for Comm Box (DIN) only - XXXMI3MCOMMSET: ferrite cores (4 pcs), shield tapes (4 pcs)

Software DVD

Quickstart guide

MI3

Rev. G Nov/2015

Basics

4 Basics

4.1 Measurement of Infrared Temperature

All surfaces emit infrared radiation. The intensity of this infrared radiation changes according to the temperature of the object. Depending on the material and surface properties, the emitted radiation lies in a wavelength spectrum of approximately 1 to 20 µm. The intensity of the infrared radiation (heat radiation) is dependent on the material. For many substances, this material-dependent constant is known. This constant is referred to as the ”emissivity value”.

Infrared thermometers are optical-electronic sensors. These sensors are sensitive to the emitted radiation. Infrared thermometers are made up of a lens, a spectral filter, a sensor, and an electronic signal processing unit. The task of the spectral filter is to select the wavelength spectrum of interest. The sensor converts the infrared radiation into an electrical signal. The signal processing electronics analyze the electrical signal and convert it into a temperature measurement. As the intensity of the emitted infrared radiation is dependent on the material, the required emissivity can be selected on the sensor.

The biggest advantage of the infrared thermometer is its ability to measure temperature without touching an object. Consequently, surface temperatures of moving or hard to reach objects can easily be measured.

4.2 Emissivity of Target Object

To determine the emissivity of the target object see section 19.1 Determination of Emissivity, page 128. If emissivity is low, measured results could be falsified by interfering infrared radiation from background objects (such as heating systems, flames, fireclay bricks, etc. located close beside or behind the target object). This type of problem can occur when measuring reflective surfaces and very thin materials, such as plastic film and glass.

This measurement error can be reduced to a minimum, if particular care is taken during installation and the sensing head is shielded from these reflecting radiation sources.

4.3 Ambient Temperature

The sensing head is suited for the ambient temperatures up to 120°C (248°F) for the standard heads and up to 180°C (356°F) for the LTH heads. The sensing head can operate in ambient temperatures up to 200°C (392°F) with the air-cooling accessory.

4.4 Atmospheric Quality

If the lens gets dirty, infrared energy will be blocked and the instrument will not measure accurately. It is good practice to always keep the lens clean. The Air Purge Jacket helps keep contaminants from building up on the lens. If you use air purging, make sure a filtered air supply with clean dry air at the correct air pressure is installed before proceeding with the sensor installation.

4.5 Electrical Interference

To minimize electrical or electromagnetic interference or “noise”, please be aware of the following:

Mount the unit as far away as possible from potential sources of electrical interference, such as motorized equipment, which can produce large step load changes.

Use shielded wire for all input and output connections.

To avoid current equalizations, make sure that a sufficient potential equalization is realized between the sensing head and metal housing of the communication box.

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MI3

Basics

To avoid ground loops, make sure that only one point is earth grounded, either via the sensing head, the Comm Box, or power.

Please note that:

The metal housings of the sensing head and the MI3 communication box are electrically connected to the shield of the head cable.

All inputs and outputs (except the alarm output and the outputs of the Comm Box (DIN 6TE, analog)) use the same ground and are electrically connected to the power supply.

Figure 7: Shield Run for Comm Box (metal)

Figure 8: Shield Run for Comm Box (DIN)

Head

Box

Power

Shield

Figure 9: Only one point is earth grounded either via sensing head, via Comm Box, or via Power

MI3

Rev. G Nov/2015

Installation

5 Installation

5.1 Positioning

Sensor location depends on the application. Before deciding on a location, you need to be aware of the ambient temperature of the location, the atmospheric quality of the location, and the possible electromagnetic interference in that location. If you plan to use air purging, you need to have an air connection available. Wiring and conduit runs must be considered, including computer wiring and connections, if used.

5.1.1 Distance to Object

The desired spot size on the target will determine the maximum measurement distance. To avoid erroneous readings, the target spot size must completely fill the entire field of view of the sensor. Consequently, the sensor must be positioned so the field of view is the same as or smaller than the desired target size. For a list indicating the available optics, see section 3.2 Optical Charts, page 17.

The actual spot size for any distance can be calculated by using the following formula. Divide the distance D by your model’s D:S number. For example, for a unit with D:S = 10:1, if the sensor is

400 mm (15.7 in.) from the target, divide 400 by 10 (15.7 by 10), which gives you a target spot size of approximately 40 mm (1.57 in.).

best

critical

incorrect

Sensor

Background

Target greater than spot size

Target equal to spot

Targets smaller than spot size

Figure 10: Proper Sensor Placement

5.2 Installation Schemes

5.2.1 Comm Box (metal)

The basic stand-alone configuration consists of one sensing head interfaced to one metallic communications box. The sensing head provides all IR measurement functionality. The communications box provides an externally accessibly user interface and display, advanced signal processing capability, field wiring terminations and fieldbus functionality with optional RS485 communication interface.

Rev. G Nov/2015

MI3

		Installation
Power supply,	Comm Box
2 analog	(RAYMI3COMM)	Head 1
outputs,		(RAYMI3…)
3 inputs
Fieldbus

Figure 11: Single Head Configuration with Comm Box

To increase the number of supported sensing heads, you can use a dedicated accessory, see section 10.1.1 Multi-Channel Box, page 64.

5.2.2 Comm Box (DIN)

The multiple sensing head configuration consists of a modular communication box provided in a DIN rail mountable plastic enclosure for supporting 4 sensing heads simultaneously. The DIN rail communication box provides an externally accessibly user interface. The terminal strip connectors are

used to simplify the field wiring.

Power supply 1 alarm output, 1 trigger input

Fieldbus or

4x analog

DIN Rail Comm Box

(RAYMI3MCOMM)

Total length:	max. 30 m (98 ft)
Total length:	max. 30 m (98 ft)

Max. 8 Sensing Heads

(RAYMI3…)

Figure 12: Multiple Head Configuration with DIN Rail Comm Box

5.3 Wiring, Head Cable

The user has to install the sensor cable on the communication box. It may be shortened, if necessary, but keep a minimal length of 20 cm (7.9 in).

Do not bend the sensing head cable tighter than a radius of 25 mm (1 in.) for the standard heads (PUR cable) and 15 mm (0.6 in.) for the high ambient temperature heads (Teflon cable) respectively!

To prevent possible fluctuating temperature readings or damages to the device make sure that the sensor head is grounded before use!

MI3

Rev. G Nov/2015

Installation

The total sensing head cable length for all networked sensing heads must not exceed 30 m (98 ft) for MI3 and 2x30 m (2x98 ft) for MI3M!

Do not add a third party cable to extend the length of the sensing head cable!

5.3.1Comm Box (metal)

1.Cut about 40 mm (1.5 in) of the cable sheath from the end of the sensing head cable . Caution: Do not cut into the shield!

2.Cut the shield so about 5 mm (0.2 in) remains exposed from under the cable sheath. Separate the shield and spread the strands out.

3.Strip 3 mm (0.12 in) of insulation from the wires !

4.Open the communication box by removing the four Phillips head screws and pulling off the

lid. Unscrew the pressure screw , and remove the first metal washer , the rubber washer , and the second and the third metal washers .

5.Put the following on the cable: the pressure screw , the first metal washer , the rubber washer and the second metal washers , see the following figure.

6.Spread the cable shield and then slip the third metal washer onto the cable. Note that the shield must make good contact to both metal washers.

7.Slip the wires into the communication box far enough to connect to the terminal.

8.Screw the pressure screw into the communication box. Tighten snuggly. Do not over tighten.

9.Connect the wires to the terminal on the printed circuit board.

Cable and sensing head

Figure 13: Sensing Head Cable to the Comm Box

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MI3

Installation

5.3.2 Comm Box (DIN)

The wiring of the sensing head cable is color coded, see section 5.4.3 Comm Box (DIN 4 TE), page 31.

5.4 Wiring, Terminal

You need to connect the power supply and possibly the signal input/output wires. Use only cable with outside diameter from 4 to 6 mm (0.16 to 0.24 in), wire size: 0.14 to 0.75 mm² (AWG 19 to 26).

The cable must include shielded wires. It should not be used as a strain relief!

5.4.1 Comm Box (metal)

Sensing Head

Emissivity Control

Ambient Compensation

Trigger/Hold

Tobj Thead Tobj/Thead

Alarm: Tobj / Thead

Power Supply

Figure 14: Terminal Wiring for the Comm Box

MI3

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Installation

5.4.2 Comm Box (DIN 3TE)

Sensing

Heads

white

yellow

green

brown

shield

white

yellow

green

brown

shield

USB Connector, Mini-B

Shield

GND

V 32 - 8

RELAY

FTC3

GND

Figure 15: Terminal Wiring for the Comm Box DIN 3TE

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MI3

Installation

5.4.3 Comm Box (DIN 4 TE)

Sensing Heads

white

yellow

green

brown

shield

white

yellow

green

brown

shield

USB Connector, Mini-B

Termination

Shield

GND

V 32 - 8

RELAY

FTC3

GND

(RS485) B

(RS485) A

Figure 16: Terminal Wiring for the Comm Box DIN 4 TE

MI3

Rev. G Nov/2015

Installation

5.4.4 Comm Box (DIN 6 TE)

Sensing

Heads

white

yellow

green

brown

shield

white

yellow

green

brown

shield

Shield

GND

V 32 - 8

RELAY

FTC3

GND

Wiring Profibus or Modbus

USB Connector, Mini-B

Figure 17: Terminal Wiring for the Comm Box DIN 6 TE for Profibus and Modbus

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MI3

Installation

Sensing

Heads

white

yellow

green

brown

shield

white

yellow

green

brown

shield

USB Connector, Mini-B

RJ45 connector

Profinet or Ethernet

shield

GND

V 32 - 8

RELAY

FTC3

GND

Figure 18: Terminal Wiring for the Comm Box DIN 6 TE for Profinet and Modbus

MI3

Rev. G Nov/2015

Installation

Sensing

Heads

white

yellow

green

brown

shield

white

yellow

green

brown

shield

see section

6.3 Analog Outputs OUT1 - OUT4, page 41.

Analog Outputs

USB Connector, Mini-B

Shield

GND

V 32 - 8

RELAY

FTC3

GND

Figure 19: Terminal Wiring for the Comm Box DIN 6 TE, analog

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MI3

Installation

5.4.5 EMI Resistance for Comm Box (DIN)

To maintain EMI compliance to CE standards the attached Ferrite cores need to be placed on all wires! Make sure that the cable shields will be connected to the terminal pin <Shield>!

self-adhesive shield tape to wrap round the cable

	Shield wire connected to	Ferrite Core placed on all wires
	terminal pin <Shield>
		except the shield wire

Figure 20: Mounting of Shield Wire and Ferrite Core

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Installation

5.5 Power On Procedure

To power the system, the following procedures are required.

5.5.1One Head System

1.Disconnect power to the box.

2.Connect the wires for the head to the box terminal.

3.Power the box.

4.The box now assigns address 1 to the head.

5.5.2Multiple Heads – Random Address Assignment

1.Disconnect power to the box.

2.Connect the wires for all heads to the box terminal.

3.Power the box.

4.The box automatically assigns a unique address to each of the heads – the mapping of physical head and head address is randomly.

5.5.3Multiple Heads – User Controlled Address Assignment

1.Disconnect power to the box.

2.Connect the wires for the first head to the box terminal.

3.Power the box.

4.The box now assigns address 1 to the first head.

5.Follow the instructions 1 to 4 to add the next head. With each new head detected, the box increases the head address by 1.

The head address may be changed later by the user under the dedicated head page. See section 8.2 <Head> Page, page 50.

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Installation

5.6 USB

The USB interface comes with each box (USB connector, Mini-B). Connect a single unit to a USB computer port by using an appropriate USB cable.

USB connector, type Mini-B

The computer’s USB port

Figure 21: USB Connection via the Comm Box (metal)

The computer’s USB port

Figure 22: USB Connection via the Comm Box (DIN Rail)

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Installation

Consider the following sequence for the installation:

1.Disconnect/reconnect the USB interface cable to the computer!

2.Ignore the Windows Wizard <Found New Hardware>!

3.Navigate manually to the dedicated USB driver <RaytekMIcomport.inf> on the support media and execute it.

It is strongly recommended to check the correct driver installation under the Windows Operating System <Start> <Settings> <Control Panel> <System> <Hardware> <Device Manager> <Ports (COM & LPT)>. Go there also to get the virtual COM port number for communicating with the DTMD Software.

Driver correctly installed!

COM port number for DTMD Software!

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Installation

5.7 Fieldbus

A simultaneous communication via USB and fieldbus is not allowed!

5.7.1 Addressing

Each slave in the network must have a unique address and must run at the same baud rate!

For setting the fieldbus configurations through the control panel, see section 8.3 <Box Setup> Page, page 51.

5.7.2 RS485 based Installations

The recommended way to add more devices into a network is connecting each device in series to the next in a linear topology (daisy chain).

Use only one power supply for all boxes in the network to avoid ground loops!

It is strongly recommended to use shielded and pair twisted cables (e.g. CAT.5)!

Make sure the network line is terminated!

Termination <on>

Master

Slave 1

Slave 2

Last

Slave

Figure 23: Network in Linear Topology (daisy chain)

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Outputs

6 Outputs

For the outputs the following groupings (setups) are possible:

Output	Setup 1	Setup 2	Setup 3	Setup 4	Setup 5

OUT1	head temperature	head temperature	object temperature	object temperature
	V	V	V	V
	V	V	V	V

OUT2	object temperature	object temperature	object temperature	object temperature	head temperature
	mA	V	mA	V	V

TC					object temperature

6.1 Analog Output OUT1

	Comm Box:	metal
	Source:	object temperature / head ambient temperature
	Signal:	0 to 5/10 V
	Terminal:	OUT1, GND

This output can be configured for the object or the head ambient temperature. E.g. the output range for the head ambient temperature is 0 to 5 VDC corresponding to 0 to 500°C (32 to 932°F). The minimum load impedance for the voltage output must be 10 kΩ.

The output is short circuit resistant.

The outputs <OUT1> and <TC> are not available at the same time!

6.2 Analog Output OUT2

Comm Box: metal

Source: object temperature / head ambient temperature

Signal: 0/4 to 20 mA or 0 to 5/10 V

Terminal:

OUT2, GND

The signal output can be configured as either current or voltage output. The minimum load impedance for the voltage output must be 10 kΩ. The maximum current loop impedance for the mA output is 500 Ω.

The output is short circuit resistant.

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Outputs

6.3 Analog Outputs OUT1 - OUT4

Comm Box: DIN 6TE, analog (4 channels)

Source: object temperature / head ambient temperature

Signal: 0/4 to 20 mA or 0 to 5/10 V

Terminal: I1-4, U1-4, GND1-4

Each signal output can be configured as either current or voltage output, whereby each sensing head can be assigned to each output. The minimum load impedance for the voltage output must be 10 kΩ. The maximum current loop impedance for the mA output is 500 Ω. All outputs are short circuit resistant.

Each output is galvanically isolated from the other and from the power supply!

Powering the communication box (DIN, 6TE), analog, only via USB will disable all analog outputs! The configuration of the box under the control panel is furthermore possible. Under the DataTemp Multidrop you can only drive and configure the analog outputs by using an additional external power supply!

6.4 Alarm Output RELAY

	Comm Box:	all models
	Source:	object temperature / head ambient temperature
	Signal:	potential-free contacts
	Terminal:	RELAY, RELAY

The alarm output is controlled by the target object temperature or the head ambient temperature. In case of an alarm, the output switches the potential free contacts from a solid state relay. The maximum load for this output is 48 V / 300 mA.

If a spike voltage exceeding the absolute maximum rated value is generated between the output terminals, insert a clamping diode in parallel to the inductive load as shown in the following circuit diagram to limit the spike voltage.

RELAY

≤ 48 V

RELAY

Figure 24: Spike Voltage Limitation for the Alarm Relay

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6.5 Thermocouple Output TC

Comm Box: metal

Source: object temperature

Signal: TCJ, TCK, TCR, or TCS

Terminal:

TC, GND

This output can be configured as thermocouple output type J, K, R, or S. For that output, you must install a dedicated compensation cable. The output impedance is 20 Ω. The output is short circuit resistant.

The outputs <OUT1> and <TC> are not available at the same time!

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Inputs

7 Inputs

Three external inputs FTC1, FTC2, and FTC3 are used for the external control of the unit.

You cannot enable the input functions through the control panel!

	FTC1	FTC2	FTC3
	FTC1	FTC2	FTC3
Emissivity (analog control)	x

Emissivity (digital control)	x	x	x

Ambient Background Temperature Compensation		x

Trigger/Hold Function			x

Laser Switching			x

Table 2: Overview for FTC Inputs

7.1 Emissivity (analog)

	Function:	emissivity (analog control)
	Signal:	0 to 5 VDC
	Terminal:	FTC1, GND

The FTC1 input can be configured to accept an analog voltage signal (0 to 5 VDC) to provide real time emissivity setting. Each input can support one head. The following table shows the relationship between input voltage and emissivity:

			U in V	0.0	0.5	…	4.5	5.0

			Emissivity	0.1	0.2	…	1.0	1.1

	Table 3: Ratio between Analog Input Voltage and Emissivity
Example:
This process requires setting the emissivity:
	for product 1:	0.90
	for product 2:	0.40

Following the example below, the operator needs only to switch to position “product 1” or “product 2”.

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Inputs

	+ 5 VDC
R1 = 200 Ω	“product 1”

	4.0 V (ε=0.9)

			To the FTC input
R2 = 500 Ω			To the FTC input
R2 = 500 Ω			of the box
	1.5 V (ε=0.4)		of the box

		“product 2”

R3 = 300 Ω
R3 = 300 Ω

Figure 25: Adjustment of Emissivity at FTC Input (Example)

7.2 Emissivity (digital)

	Function:	emissivity (digital control)
	Signal:	digital low/high
	Terminal:	FTC1-3, GND

The box electronics contains a table with 8 pre-installed settings for emissivity. To activate these emissivity settings, you need to have the inputs FTC1, FTC2, and FTC3 connected. According to the voltage level on the FTC inputs, one of the table entries will be activated.

0 = Low signal (0 V)

1 = High signal (from 5 V to VDC)

A non-wired input is considered as not defined!


Table entry	Emissivity	FTC3	FTC2	FTC1
	(Examples)
0	1.100	0	0	0
1	0.500	0	0	1
2	0.600	0	1	0
3	0.700	0	1	1
4	0.800	1	0	0
5	0.970	1	0	1
6	1.000	1	1	0
7	0.950	1	1	1

Figure 26: Digital Selection of Emissivity with FTC Inputs

The values in the table cannot be changed through the control panel.

7.3 Ambient Temperature Compensation

	Function:	Ambient Temperature Compensation
	Signal:	0 to 5 VDC
	Terminal:	FTC2, GND

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Inputs

The sensor is capable of improving the accuracy of target temperature measurements by taking into account the ambient or background temperature. This feature is useful when the target emissivity is below 1.0 and the background temperature is significantly hotter than the target temperature. For instance, the higher temperature of a furnace wall could lead to hotter temperatures being measured especially for low emissivity targets.

Ambient background temperature compensation allows for the impact of reflected radiation in accordance with the reflective behavior of the target. Due to the surface structure of the target, some amount of ambient radiation will be reflected and therefore, added to the thermal radiation that is collected by the sensor. The ambient background temperature compensation adjusts the final result by subtracting the amount of ambient radiation measured from the sum of thermal radiation the sensor is exposed to.

The ambient background temperature compensation should always be activated in case of low emissivity targets measured in hot environments or when heat sources are near the target!

Three possibilities for ambient background temperature compensation are available:

The internal sensing head temperature is utilized for compensation assuming that the ambient background temperature is more or less represented by the internal sensing head temperature. This is the default setting.

If the background ambient temperature is known and constant, the user may give the known ambient temperature as a constant temperature value.

Ambient background temperature compensation from a second temperature sensor (infrared or contact temperature sensor) ensures extremely accurate results. For example, a second IR sensor, configured to provide a 0 to 5 volt output scaled for the same temperature range as the target can be connected to input FTC2 to provide real-time ambient background compensation.

Sensor 2
targeted
to ambient	Furnace wall

0 – 5 VDC analog output at FTC2 input

Sensor 1 targeted to object

Thermal radiation of ambient
Thermal radiation of target	Target object

Figure 27: Principle of Ambient Background Temperature Compensation

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7.4 Trigger/Hold

	Function:	Trigger/Hold
	Signal:	digital low/high
	Terminal:	FTC3, GND

The FTC3 input can be used as an external trigger functioning as “Trigger” or “Hold”. All sensing heads are effected by the FTC3 input at the same time.

Figure 28: Wiring of FTC3 as Trigger/Hold

Trigger: A logical low signal at the input FTC3 will reset the peak or valley hold function. As long as the input is kept at logical low level, the software will transfer the actual object temperatures toward the output. At the next logical high level, the hold function will be restarted.

Temp	object temperature

	output temperature

FTC3

Time

Figure 29: FTC for Resetting the Peak Hold Function

Hold: This mode acts as an externally generated hold function. A transition at the input FTC3 from logical high level toward logical low level will transfer the current temperature toward the output. This temperature will be written to the output until a new transition from high to low occurs at the input FTC3.

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Inputs

Temp		object temperature
Temp
		output temperature

Trigger

Time

Figure 30: FTC3 for Holding the Output Temperature

7.5 Laser Switching

	Function:	Laser switching on/off
	Signal:	digital low/high
	Terminal:	FTC3, GND

The FTC3 input can also be used as an external trigger to switch the laser (only available for selected sensing head models). A transition at the input from logical high level toward logical low level will switch the laser. All sensing heads are effected by the FTC3 input at the same time.

Figure 31: Wiring of FTC3 as Laser Switching

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Operation

8 Operation

Once you have the sensor positioned and connected properly, the system is ready for continuous operation.

The control panel is accessible on the outside of the box. Push buttons provide positive tactile feedback to the user. User interface includes a backlit LCD, displaying sensor set up parameters and temperature outputs. Alternatively, the operation of the sensor can be done by means of the software that came with your sensor.

8.1 Control Panel

The sensor system is equipped with a control panel integrated in the box lid, which has setting/controlling buttons and an LCD display.

Alarm Indicator LCD Display

Up Button	Down Button
Page Button	Enter Button

Figure 32: Control Panel for the Comm Box (metal)

Up Button

Page Button

LCD Display

Alarm Indicator

Down Button

Enter Button

Figure 33: Control Panel for the Comm Box (DIN)

Head number	Signal Processing

Object Temperature

Parameters

Figure 34: Elements of the LCD Display

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Operation

The head number is shown only if two or more sensing heads are connected to the communication box.


Symbol/Message	Meaning	Remark
AVG	Average

PH	Peak Hold

VH	Valley Hold

HOLD	Trigger set to HOLD function

APH	Advanced Peak Hold	Software controlled

APHA	Advanced Peak Hold with Averaging	Software controlled

AVH	Advanced Valley Hold	Software controlled

AVHA	Advanced Valley Hold with Averaging	Software controlled

<Power Fault> & alarm	Power via USB not sufficient to drive all analog outputs of	Configuration of the box is possible
indicator are blinking	Communication box (DIN, 6TE), analog	but outputs are set to disabled

Table 4: Symbols and Messages in the Display

Pushing the keys of the control panel will cause the following actions:

enters the menu or save parameters

enters the next page

No action for 10 s forces the unit to leave the menu without saving of parameters.

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Operation

#1 (Head)	#2 (Head)	...	BOX SETUP



Tambient			Relay Mode


Emissivity			OUT1 Mode*


Transmiss.			OUT1 Source*


Laser*			OUT1 Value*


Average			OUT1 low temp.*
			OUT1 low temp.*


Peak Hold			OUT1 high temp.*
			OUT1 high temp.*


Val. Hold			OUT2 Mode*
			OUT2 Mode*


Trigger			OUT2 Source*
			OUT2 Source*


Alarm Mode			OUT2 Value*
			OUT2 Value*


Set Point			OUT2 low temp.*
			OUT2 low temp.*


Lo Limit			OUT2 high temp.*
			OUT2 high temp.*


Hi Limit			Interface
			Interface


Fact. default			Factory default
			Factory default


Type			Temperature Unit
			Temperature Unit


SN			Key Enter Lock
			Key Enter Lock


			Display Backlight

* not available for all models

4 output channels for Comm Box DIN 6 TE, analog

8.2 <Head> Page

BOX INFO

Serial No.

Rev.

Tbox

<Tambient>	current head ambient temperature
<Emissivity>	changes the emissivity value for the selected head. The emissivity is a
	calculated ratio of infrared energy emitted by an object to the energy emitted by
	a blackbody at the same temperature (a perfect radiator has an emissivity of
	1.00). For information on determining an unknown emissivity and for sample
	emissivities, see section 19.2 Typical Emissivity Values, page 128.
<Transmiss.>	changes the transmission value when using protective windows. For example,
	if a protective window is used with the sensor, set the transmission to the
	appropriate value.
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Operation

<Laser>	handles the laser in the following modes:
	<off> switches the laser off
	<flash> forces the laser to blink at 8 Hz
	<on> switches the laser permanently on
	<external> switches the laser via external input FTC3
	An activated laser will be switched off automatically after 10 minutes.
	The laser is available for 1M and 2M heads only. The laser can be activated at
	the same time for maximal 4 heads.
<Average> AVG	signal post processing set to averaging, parameter given in seconds. Once
	<Average> is set above 0 s, it automatically activates. Note that other hold
	functions (like Peak Hold or Valley Hold) cannot be used concurrently. Value
	range: 0.0 to 998.9 sec, ∞
	See section 8.5.1 Averaging, page 53.
<Peak Hold> PH	signal post processing set to Peak Hold, parameter given in seconds. Once
	<Peak Hold> is set above 0 s, it automatically activates. Note that other hold
	functions (like Valley Hold or Averaging) cannot be used concurrently. Value
	range: 0.0 to 998.9 sec, ∞
	See section 8.5.2 Peak Hold, page 54.
<Val. Hold> VH	signal post processing set to Valley Hold, parameter given in seconds. Once
	<Valley Hold> is set above 0 s, it automatically activates. Note that other hold
	functions (like Peak Hold or Averaging) cannot be used concurrently. Value
	range: 0.0 to 998.9 sec, ∞
	See section 8.5.3 Valley Hold, page 54.
<Trigger>	defines the trigger mode for the selected head:
	<trig>: … to reset the peak or valley hold function
	<hold>: activates the hold function
	See section 7.4 Trigger/Hold, page 46.
<Alarm Mode>	defines the alarm mode for the selected head:
	<Tobj>: object temperature as alarm source
	<Tamb>: head ambient temperature as alarm source
<Set Point>	defines a temperature threshold for an alarm
<Lo Limit>	low end of temperature measurement range (read only)
<Hi Limit>	high end of temperature measurement range (read only)
<Fact. default>	sets the selected head back to factory default.
	The factory default values are to be found in section 18.8 Command Set,
	page 121.
<Type>	provides the head model, e.g. MI3LT
<SN>	provides the serial number for the selected head and allows to reassign a new
	head address

8.3 <Box Setup> Page

<Relay Mode>	defines the switching behavior for the box internal alarm relay:
	<normally open>: open contact in non-alarm status
	<normally closed>: closed contact in non-alarm status
	<permanently OFF>: permanently open contacts
	<permanently ON>: permanently closed contacts
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Operation

<OUT1 Mode>	defines the mode for the analog output:
	<TCJ>, <TCK>, <TCR>, <TCS>
	<0-5V>
	<0-10V>
	<disable> output goes to high-resistance
<OUT1 Source>	assigns the selected head to the analog output:
	<#1>, <#2>, …, <Headmax>
<OUT1 Value>	defines the basis for the output value:
	<Tobject>: object temperature to be output
	<Tambient>: head ambient temperature to be output
<OUT1 low temp.>	defines the temperature for the low end of the analog output range (scaling)
<OUT1 high temp.>	defines the temperature for the high end of the analog output range (scaling)
<OUT2 Mode>	defines the mode for the analog output 2:
	<0-20mA>
	<4-20mA>
	<0-5V>
	<0-10V>
	<disable> output goes to high-resistance
<OUT2 Source>	assigns the selected head to the analog output:
	<#1>, <#2>, …, <Headmax>
<OUT2 Value>	defines the basis for the output value:
	<Tobject>: object temperature to be output
	<Tambient>: head ambient temperature to be output
<OUT2 low temp.>	defines the temperature for the low end of the analog output range (scaling)
<OUT2 high temp.>	defines the temperature for the high end of the analog output range (scaling)
<Interface>	RS485/Profibus/Modbus:
	<address>: unique address of the box in the network.
	<baudrate>: baud rate for the box. Each device in the network must be set to the
	same baud rate. The baud rate for Profibus is automatically negotiated between
	master and slave.
	Profinet/Ethernet:
	<DHCP>: on/off – network protocol to configure a device in a network. DHCP
	is switched off for Profinet communications.
	<IP address>: a unique address of the box in the network, only changeable at
	DHCP = off
	<SubNetMask>: the subnet mask defines the interpretation of the IP address,
	only changeable at DHCP = off
	<Gateway>: a gateway connects two subnets at different subnet addresses, only
	changeable at DHCP = off
	<Port>: communication port, only changeable at DHCP = off, read-onlyfor
	Profinet communications
	<MAC>: MAC address, read-only
<Factory default>	sets the box back to factory default.
	The factory default values are to be found in section 18.8 Command Set,
	page 121.

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Operation

<Temperature Unit> the temperature unit can be set to °C or °F. Note that this setting influences the digital interfaces like RS485 for both object and head ambient temperature.

<Key Enter Lock> the box has a user interface lockout feature that keeps the box from being accidentally changed from the control panel (locked by default under DataTemp Multidrop Software and Profinet communications). This lockout

mode denies access to the button to avoid the saving of adjustable parameters. The unit can be unlocked by pressing the button and the

button simultaneously for 3 seconds or alternatively by pressing the button for 5 seconds.

<Display Backlight> defines the switching behavior for the display: <ON>: switches the backlight on

<OFF>: switches the backlight off

<60sec.OFF>: switches the backlight off after the giving time

To preserve the display’s longevity, the backlight should be turned off in case of not using it!

8.4 <Box Info> Page

<Serial No.>:	serial number of the box.
<Rev>:	firmware revision
Tbox:	current box ambient temperature

8.5 Post Processing

8.5.1 Averaging

Averaging is used to smooth the output signal. The signal is smoothed depending on the defined time basis. The output signal tracks the detector signal with significant time delay but noise and short peaks are damped. Use a longer average time for more accurate damping behavior. The average time is the amount of time the output signal needs to reach 90% magnitude of an object temperature jump.

Temp		output temperature
Temp
		object temperature
	temperature jump

90% of temperature jump

average time

Time

Figure 35: Averaging

A low level input (GND) at external input FTC3 will promptly interrupt the averaging and will start the calculation again.

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Attention: The disadvantage of averaging is the time delay of the output signal. If the temperature jumps at the input (hot object), the output signal reaches only 90% magnitude of the actual object temperature after the defined average time.

8.5.2 Peak Hold

The output signal follows the object temperature until a maximum is reached. The output will „hold“ the maximum value for the selected duration of the hold time. Once the hold time is exceeded, the peak hold function will reset and the output will resume tracking the object temperature until a new peak is reached. The range for the hold time is 0.1 to 998.9 s.

	output temperature
Temp
Temp	object temperature
	object temperature

hold time

Time

Figure 36: Peak Hold

A defined hold time of 999 s (symbol “∞” in the display) will put the device into continuous peak detection mode.

A low level input (GND) at external input FTC3 will promptly interrupt the hold time and will start the maximum detection again.

8.5.3 Valley Hold

The output signal follows the object temperature until a minimum is reached. The output will „hold“ the minimum value for the selected duration of the hold time. Once the hold time is exceeded, the valley hold function will reset and the output will resume tracking the object temperature until a new valley is reached. The range for the hold time is 0.1 to 998.9 s

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Operation

Temp	output temperature

	object temperature

hold time

Time

Figure 37: Valley Hold

A defined hold time of 999 s (symbol “∞” in the display) will put the device into continuous valley detection mode.

A low level input (GND) at external input FTC3 will promptly interrupt the hold time and will start the minimum detection again.

8.5.4 Advanced Peak Hold

This function searches the sensor signal for a local maximum (peak) and writes this value to the output until a new local maximum is found. Before the algorithm restarts its search for a local maximum, the object temperature has to drop below a predefined threshold. If the object temperature rises above the held value, which has been written to the output so far, the output signal follows the object temperature again. If the algorithm detects a local maximum while the object temperature is currently below the predefined threshold, the output signal jumps to the new maximum temperature of this local maximum. Once the actual temperature has passed a maximum above a certain magnitude, a new local maximum is found. This magnitude is called hysteresis.

		output temperature
Temp			object temperature



	hysteresis

threshold

Time

Figure 38: Advanced Peak Hold

The advanced peak hold function is only adjustable by means of the DataTemp Multidrop Software.

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Operation

8.5.5 Advanced Valley Hold

This function works similar to the advanced peak hold function, except that it will search the signal for a local minimum.

8.5.6 Advanced Peak Hold with Averaging

The output signal delivered by the advanced peak hold functions tends to jump up and down. This is due to the fact, that only maximum points of the otherwise homogenous trace will be shown. The user may combine the functionality of the peak hold function with the averaging function by choosing an average time, thus, smoothing the output signal for convenient tracing.

	output temperature

	without averaging
Temp
Temp		object temperature
		object temperature

Time

Figure 39: Advanced Peak Hold with Averaging

The advanced peak hold function with averaging is only adjustable by means of the DataTemp Multidrop Software.

8.5.7 Advanced Valley Hold with Averaging

This function works similar to the advanced peak hold function with averaging, except it will search the signal for a local minimum.

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Options

9 Options

Options are items that are factory installed and must be specified at time of order. The following are available:

Longer head cables in the lengths:

3 m / 9.8 ft. (…CB3)

8 m / 26 ft. (…CB8)

15 m / 49 ft. (…CB15)

30 m / 98 ft. (…CB30)

Network communication interfaces:

RS485, Profibus DP, Modbus RTU, Profinet IO, Ethernet

All available models are listed under section 2.1 Overview Comm Boxes, page 14.

9.1Water Cooled Housing (1M, 2M Heads)

The Water Cooled Housing option (…WS) allows the sensor to be used in ambient temperatures up to 180°C (356°F). The cooling water should be connected using 1/8” NPT stainless steel fittings. The flow rate should be approximately 1.0 to 2.0 l/min at a temperature between 10 and 27°C (50 to 80.6°F). Chilled water below 10°C (50°F) is not recommended, see section 9.1.1 Avoidance of Condensation, page 58.

The Water Cooled Housing is made from stainless steel. The scope of delivery contains the air purge collar (XXXMI3100AP). The sensing head cable is made from Teflon and limited to 15 m (49 ft).

Figure 40: Water Cooled Housing

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Options

9.1.1 Avoidance of Condensation

If environmental conditions makes water cooling necessary, it is strictly recommended to check whether condensation will be a real problem or not. Water cooling also causes a cooling of the air in the inner part of the sensor, thereby decreasing the capability of the air to hold water. The relative humidity increases and can reach 100% very quickly. In case of a further cooling, the surplus water vapor will condense out as water. The water will condense on the lenses and the electronics resulting in possible damage to the sensor. Condensation can even happen on an IP65 sealed housing.

There is no warranty repair possible in case of condensation within the housing!

To avoid condensation, the temperature of the cooling media and the flow rate must be selected to ensure a minimum device temperature. The minimum sensor temperature depends on the ambient temperature and the relative humidity. Please consider the following table.

Relative Humidity [%]

Ambient Temperature [°C/°F]

	10	15	20	25	30	35	40	45	50	55	60	65	70	75	80	85	90	95	100

0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/
32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32
5/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	5/
41	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	41
10/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	0/	5/	5/	5/	5/	5/	10/
50	32	32	32	32	32	32	32	32	32	32	32	32	32	41	41	41	41	41	50
15/	0/	0/	0/	0/	0/	0/	0/	0/	0/	5/	5/	5/	5/	10/	10/	10/	10/	10/	15/
59	32	32	32	32	32	32	32	32	32	41	41	41	41	50	50	50	50	50	59
20/	0/	0/	0/	0/	0/	0/	5/	5/	5/	10/	10/	10/	10/	15/	15/	15/	15/	15/	20/
68	32	32	32	32	32	32	41	41	41	50	50	50	50	59	59	59	59	59	68
25/	0/	0/	0/	0/	5/	5/	10/	10/	10/	10/	15/	15/	15/	20/	20/	20/	20/	20/	25/
77	32	32	32	32	41	41	50	50	50	50	59	59	59	68	68	68	68	68	77
30/	0/	0/	0/	5/	5/	10/	10/	15/	15/	15/	20/	20/	20/	20/	25/	25/	25/	25/	30/
86	32	32	32	41	41	50	50	59	59	59	68	68	68	68	77	77	77	77	86
35/	0/	0/	5/	10/	10/	15/	15/	20/	20/	20/	25/	25/	25/	25/	30/	30/	30/	30/	35/
95	32	32	41	50	50	59	59	68	68	68	77	77	77	77	86	86	86	86	95
40/	0/	5/	10/	10/	15/	20/	20/	20/	25/	25/	25/	30/	30/	30/	35/	35/	35/	35/	40/
104	32	41	50	50	59	68	68	68	77	77	77	86	86	86	95	95	95	95	104
45/	0/	10/	15/	15/	20/	25/	25/	25/	30/	30/	35/	35/	35/	35/	40/	40/	40/	40/	45/
113	32	50	59	59	68	77	77	77	86	86	95	95	95	95	104	104	104	104	113
50/	5/	10/	15/	20/	25/	25/	30/	30/	35/	35/	35/	40/	40/	40/	45/	45/	45/	45/	50/
122	41	50	59	68	77	77	86	86	95	95	95	104	104	104	113	113	113	113	122
60/	15/	20/	25/	30/	30/	35/	40/	40/	40/	45/	45/	50/	50/	50/	50/	50/	50/	50/	60/
140	59	68	77	86	86	95	104	104	104	113	113	122	122	122	122	122	122	122	140
70/	20/	25/	35/	35/	40/	45/	45/	50/	50/	50/	50/	50/	60/	60/	60/	60/	60/	60/
158	68	77	95	95	104	113	113	122	122	122	122	122	140	140	140	140	140	140
80/	25/	35/	40/	45/	50/	50/	50/	60/	60/	60/	60/	60/
176	77	95	104	113	122	122	122	140	140	140	140	140
90/	35/	40/	50/	50/	50/	60/	60/	60/
194	95	104	122	122	122	140	140	140
100/	40/	50/	50/	60/	60/
212	104	122	122	140	140

Tab. 5: Minimum device temperatures [°C/°F]
Example:
		Temperatures higher than	60°C
Ambient temperature	= 50 °C
		(140°F) are not recommended due to
Relative humidity	= 40 %
		the temperature limitation	of the
Minimum device temperature	= 30 °C
		sensor.

The use of lower temperatures is at your own risk!

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Options

9.2 Intrinsic Safety

9.2.1 Sensing Heads

The sensing heads for the MI3, MI3xxLTH, and MI3100 series are available as intrinsic safety rated sensing heads (…IS) intended for use in explosive atmospheres.

The sensing heads xxMI3xxxISx and xxxMI3100xxxISx follow the ATEX / IECEx certification in accordance to:

Certificate: BVS 12 ATEX E 140	IECEx BVS 15.0051
II 2G Ex ib IIC T4 Gb	Ex ib IIC T4 Gb
II 2D Ex ib IIIC T135°C Db	Ex ib IIIC T135°C Db

The ambient temperature range for these sensing heads is specified as follows:

LT, G5	Ta= -10 to 120°C (14 to 248°F)
1M, 2M	Ta= 0 to 120°C (32 to 248°F)

The intrinsically safe sensing heads 1M/2M are available with water cooled housing. The water cooled housing can provide a cooler, more stable operating environment for the sensing head but does not allow for approved intrinsically safe operation when external ambient conditions are exceeding the ambient temperature ranges.

The sensing heads xxxMI3xxLTHISx follow the ATEX / IECEx certification in accordance to:

Certificate: BVS 12 ATEX E 140	IECEx BVS 15.0051
II 2G Ex ib IIC T4/T3 Gb	Ex ib IIC T4 / T3 Gb
II 2D Ex ib IIIC T135°C/185°C Db	Ex ib IIIC T135°C / 185°C Db

The ambient temperature range for these sensing heads is specified as follows:

LTH sensing head	Ta= -10 to 180°C (14 to 356°F)
Detached electronic unit	Ta= -10 to 120°C (14 to 248°F)

For further information to relevant standards and the examination certificate, see section ATEX Certificate of Conformity for Sensing Heads, page 132 or IECEx Certificate of Conformity for Sensing Heads, page 138.

9.2.2 Ex Power Supply RAYMI3ACISx

The Ex Power Supply must be used to operate ATEX / IECEx certified sensing heads in hazardous environments. The Ex Power Supply is installed in a non-hazardous area to supply power to intrinsically safe sensing heads. The Ex Power Supply is to be ordered separately (RAYMI3ACISx).

The Ex Power Supply follows the ATEX / IECEx certification in accordance to:

Certificate: BVS 14 ATEX E 168	IECEx BVS 15.0057
II (2)G [Ex ib Gb] IIB	[Ex ib Gb] IIB
II (2)D [Ex ib Db] IIIC	[Ex ib Db] IIIC

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Options

The Ex Power Supply is specified as follows:

Power supply	115 / 230 VAC, 50/60 Hz, 0.1 A, internal fuse 0.25 A (nonexchangeable)
Operating temperature	-10 to 65°C (14 to 149°F)
Storage temperature	-20 to 85°C (-4 to 185°F)
Rating	IP65
Material	Aluminum, die casted

		max. torque 3 Nm (2.2 lbf ft)

Protective ground (PE)

Figure 41: Dimensions of Housing for Ex Power Supply

For further information to relevant standards and the examination certificate, see ATEX Certificate of Conformity for Ex Power Supply, page 135 or IECEx Certificate of Conformity for Power Supply, page 142.

9.2.3 Installation

The basic installation of sensing heads and the Ex Power Supply is shown in the following figure.

MI3 Communication Box

Ex Power Supply

Explosion critical area

100 to 127 VAC

200 to 240 VAC

Data cable

Total sensing head cable length: max. 30 m (98 ft)

115 / 230 VAC is selected by switch. Before installation please check lokal mains voltage to avoid damage!

Figure 42: Basic Installation in the Explosion Critical Area

In areas with explosive environments, only intrinsically safe sensing heads must be used!

The total sensing head cable length for all networked sensing heads must not exceed 30 m (98 ft)!

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Options

The standard data cable length to the communication box is 5 m (16 ft). In response to the interference in the environment the length of the cable may be up to 30 m (98 ft). Use only shielded cable with low capacitance about 100 pF/m (33pF/ft).

The following illustration shows the external wiring of the Ex Power Supply with the sensing heads, the communication box and the mains supply.

Before Installation – select local mains voltage!

	115 / 230 VAC	Sensing Head 1
		Sensing Head 1
	MI3	Sensing Head 2
	Communication	Sensing Head 2
	Communication
	Box

Figure 43: External Wiring of the Ex Power Supply

To wire the mains supply, see the following section 9.2.4 Mains Supply, page 61.

For the installation of the sensing head cable and the cable for the communication box the color coding for the individual wires needs to be considered. For the EMC compliant connection of the cable with the grommet follow the implementation order illustrated in the figure below.

	Make sure to implement
	a 360° shield contact
	with the contact socket!
Ex Power Supply	Sensing Head /
	Communication Box

Figure 44: EMC Compliant Connection for the Cables for Sensing Heads and Communication Box

9.2.4 Mains Supply

The Ex Power Supply does not include a power switch. You must supply a mains disconnect switch. This switch should be in close proximity to the operator and clearly marked as the power shutoff for the equipment.

If you use a line conditioner or isolation transformer, connect it according to the manufacturer’s instructions. Please observe grounding instructions and make sure earth ground is supplied to the terminal block of the Ex Power Supply, see Figure 41.

All local electrical codes related to installation and grounding of electrical equipment should be followed.

1 © photo courtesy of HUGRO-Armaturen GmbH
MI3	Rev. G Nov/2015	61

Options

Before installation select the correct local mains voltage via the switch on the circuit board of the Ex Power Supply, see Figure 45.

A ground wire must be connected to the (PE - protective earth) terminal on the circuit board of the Ex Power Supply.

To prevent possible electrical shock, fire or personal injury, make sure that the processor box is grounded before use.

Follow all local electrical codes related to installation and grounding of electrical equipment.

To prevent personal injury, make sure the mains disconnect switch is off before opening the box lid.

The protective earth screw (marked with and found on the front side of the Ex Power Supply) requires connection to the local ground by using a 6 mm² (AWG 10) green/yellow wire.


Switch Position	Mains voltage range

115	100 to 127 VAC, 50/60 Hz

230	200 to 240 VAC, 50/60 Hz

Figure 45: Switch Positions for Selecting the Mains Voltage Range

Terminal X1

L	N	PE

100-240 VAC live	100-240 VAC neutral	Protective Earth

Figure 46: Connecting the Power Cord to the Terminal in the Ex Power Supply

The Earth Ground wire should be slightly longer than the two other wires, so if the cable is accidentally pulled, the line and neutral wires are disconnected first.

You need to connect the AC mains: Only cable with 3 wires in a size of 1.5 to 2.5 mm² (AWG 14 to 16) should be used.

An external 6 to 16 A line fuse (type B) or an equivalent circuit breaker is required for the AC mains installation.

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MI3

Options

9.2.5 Ex Power Supply 115MI3ACIS / 230MI3ACIS

The two variants of the Ex Power Supply without voltage selection switch are hard wired to the mains voltage. These devices are considered as nonsparking and may be installed in a non-hazardous area or in a hazardous area Zone 2 EPL Gc to supply power to intrinsically safe sensing heads. The Ex Power Supply is to be ordered separately corresponding the mains voltage 100 to 127 VAC, 50/60 Hz as 115MI3ACIS or corresponding the mains voltage 200 to 240 VAC, 50/60 Hz as 230MI3ACIS.

The two variant of the Ex Power Supply follow the IECEx certification in accordance to:

Certificate: IECEx BVS 15.0057
115MI3ACIS*	230MI3ACIS*
Un = AC 115 V	Un = AC 230 V
Ex nA [ib Gb] IIB Gc T4	Ex nA [ib Gb] IIB Gc T4
[Ex ib Db] IIIC	[Ex ib Db] IIIC

For further information to relevant standards and the examination certificate, see IECEx Certificate of Conformity for Power Supply, page 142.

MI3

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Accessories

10 Accessories

A full range of accessories for various applications and industrial environments are available. Accessories include items that may be ordered at any time and added on-site.

10.1 Accessories (all models)

Multi-Channel Box (XXXMI3CONNBOX)

USB/RS485 Adapter for boxes with RS485 interface (XXXUSB485)

10.1.1 Multi-Channel Box

The Multi-Channel Box can be used for all communication boxes. The box includes 8 sets of field wiring terminals wired in parallel to one 5 m (16 ft) cable set to connect to the communication box.

Comm Box

Multi-Channel Box

Head 1

Figure 47: Multiple Head Configuration with Comm Box

Technical Data
Ambient Temperature	-20 to 100°C (-4 to 212°F)
Storage Temperature	-20 to 100°C (-4 to 212°F)
Rating	IP65 (NEMA-4) / IEC 60529
Relative Humidity	10% to 95% non-condensing
Vibration	11 to 200 Hz, 3 g above 25 Hz operating, 3 axes / IEC 60068-2-6
Shock	50 g, 11 ms, operating, 3 axes / IEC 60068-2-27

The Multi-Channel Box must not be used with Ex power supply IS unit for wiring heads.

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MI3

Accessories

Figure 48: Dimensions

to Comm Box

(MI3COMM or MI3MCOMM)

Figure 49: Wiring Diagram for 8 Heads

MI3

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Accessories

Please note the correct mounting of the cable shield requires a strong metallic contact to the grommet.

Shield with metallic

contact to the grommet

Correct position of the shield before mounting

Figure 50: Correct Mounting of the Cable Shield

The total sensing head cable length for all networked sensing heads must not exceed 30 m/98 ft (for MI3) and 2x30 m/2x98 ft (for MI3M)!

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MI3

Accessories

10.1.2 USB/RS485 Adapter

The USB/RS485 adapter is self-powering via the USB connection.

Figure 51: USB/RS485 Adapter (XXXUSB485)

Termination

Figure 52: Wiring the RS485 Interface of the Box (left)

and USB/RS485 Adapter (right)

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Accessories

10.2 Accessories (LT, G5 Heads)

Adjustable Mounting Bracket (XXXMIACAB)

Fixed Mounting Bracket (XXXMIACFB)

Sensing head mounting nut (XXXMIACMN)

Air Purge Jacket (XXXMIACAJ)

Air Cooling System with 0.8 m (2.6 ft.) air hose (XXXMIACCJ) or with 2.8 m (9.2 ft.) air hose (XXXMIACCJ1)

Right Angle Mirror (XXXMIACRAJ, XXXMIACRAJ1)

Protective Windows

Close Focus Lens (XXXMI3ACCFL)

Adjustable Bracket

Communication Box

Sensing Head

Fixed Bracket

Figure 53: Standard Accessories for LT, G5 Heads

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MI3

Accessories

10.2.1 Adjustable Mounting Bracket

Figure 54: Adjustable Mounting Bracket (XXXMIACAB)

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Accessories

10.2.2 Fixed Mounting Bracket

Figure 55: Fixed Mounting Bracket (XXXMIACFB)

10.2.3 Air Purge Jacket

For LTH sensing heads, the Air Purge Jacket is only available pre-mounted from the factory (XXXMIACAJI)!

The air purge jacket is used to keep dust, moisture, airborne particles, and vapors away from the sensing head. Clean, oil free air is recommended. The air purge jacket withstands ambient temperatures up to 180°C (356°F) and has limited use for cooling purposes. The recommended air flow rate is 30 to 60 l / min (0.5 to 1 cfm). The max. pressure is 5 bar (73 PSI).

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Accessories

Hose with inner diameter of 3 mm (0.12 in), outside 5 mm (0.2 in)

Figure 56: Air Purge Jacket (XXXMIACAJ)

Figure 57: Mounting the Air Purge Jacket

Fitting to M5 inner thread

1.Remove the sensor and cable from the communication box by disconnecting the wires from the terminal.

2.Open the Air Purge Jacket and screw the white plastic fitting onto the sensor up to the end of the threads. Do not over-tighten!

3.Slip the cable through the backside of the jacket.

4.Close the Air Purge Jacket , reconnect the wires to the communication box and apply the mounting nut .

10.2.4 Air Cooling System

The Air Cooling System can not be combined with LTH heads!

The sensing head can operate in ambient temperatures up to 200°C (392°F) with the air-cooling system. The air-cooling system comes with a T-adapter including 0.8 m / 31.5 in (optional: 2.8 m / 110 in) air hose and insulation. The T-adapter allows the air-cooling hose to be installed without interrupting the connections to the box.

The air-cooling jacket may be combined with the right angle mirror.

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Rev. G Nov/2015

Accessories

max. ambient 200°C (392°F)		max. ambient 50°C (122°F)
Sensing Head	Air Hose	T-		Cable
		Adapter	Box

Air cooling (max. 35°C / 95°F)

Figure 58: Air Cooling System (XXXMIACCJ)

T-Adapter

Hose to sensing head

Cable to box

Fitting free for air connection Hose:

inner Ø: 9 mm (0.35 in) outer Ø: 12 mm (0.47 in)

Figure 59: Connecting the T-Adapter

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Accessories

Air Flow:

60 l / min (2.1 cubic feet per minute)

50 l / min (1.8 cfm)

40 l / min (1.4 cfm)

Hose Length

Figure 60: Maximum Ambient Temperature is dependent on Air Flow and Hose Length

Note: “Hose Length“ is the length of the hose exposed to high ambient temperature (not the overall length of the hose).

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Accessories

Figure 61: Air Cooling System: Purging Jacket and T-Adapter

The Air Cooling System consists of:

sensing head

inner plastic fitting (air purge jacket)

front part of the air-purging jacket

back part of the air-purging jacket

mounting nut

preinstalled cable between sensor and box, leading through the T-adapter

hose connecting nut

inner hose

outer hose

T-adapter

rubber washer

plastic compression fitting

cap

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MI3

Accessories

Hose: inner Ø: 9 mm (0.35 in) outer Ø: 12 mm (0.47 in)

Figure 62: Dimensions of Air Cooling System

10.2.5 Right Angle Mirror

The right angle mirror comes in two different versions:

XXXMIACRAJ	right angle mirror as accessory for air purge jacket or air cooling system
XXXMIACRAJ1	right angle mirror with integrated air purge (not available for LTH sensing heads)

Figure 63: Right Angle Mirror XXXMIACRAJ (left),

Right Angle Mirror with Air Purge XXXMIACRAJ1 (right)

The right angle mirror withstands ambient temperatures up to 180°C (356°F).

For mounting the right angle mirror (XXXMIACRAJ), see section 10.2.3 Air Purge Jacket, page 70. However, instead of using the front part of the air purge jacket , mount the right angle mirror.

Figure 64: Right Angle Mirror (* with Air Purge)

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Accessories

The IR beam length within the right angle mirror is 18 mm (0.7 in.) which needs to be considered for spot size calculations.

10.2.6 Protective Windows

Protective windows can be used to protect the sensing head from dust and other contamination.

The protective window can be directly screwed onto the sensing head. It has an outer diameter of 17 mm (0.67 in).

The following table provides an overview of the available windows.


Order number	Material		Transmission	T ambient

	holder: stainless steel	0.75 ±0.05
XXXMIACPW	window: Zinc Sulfide	0.75 ±0.05		180°C (356°F)
XXXMIACPW	window: Zinc Sulfide		(for LT, G5 models)	180°C (356°F)
	(visually transparent, flat)		(for LT, G5 models)
	(visually transparent, flat)

	holder: stainless steel	0.7 ±0.02
XXXMI3ACPWP	window: Polymer	0.7 ±0.02		65°C (149°F)
XXXMI3ACPWP	window: Polymer		(LT models only)	65°C (149°F)
	(milky transparent, flat)		(LT models only)
	(milky transparent, flat)

	Table 6: Available Protective Windows

For correct temperature readings, the transmission of the protective window must be set via the control panel in the communication box. See section 8.2 <Head> Page, page 50! Make sure the measuring head and the protection window are at the same temperature!

Figure 65: Protective Window

10.2.7 Close Focus Lens

The close focus lens is designed to get very small measurement spots down to 0.5 mm (0.02 in). The lens should be used for LT models only.

The close focus lens has an outer diameter of 17 mm (0.67 in) and can be directly screwed onto the sensing head.


Order number	Material	Transmission	T ambient

	holder: stainless steel	0.75 ±0.05
XXXMI3ACCFL	window: Silicon	0.75 ±0.05	180°C (356°F)
XXXMI3ACCFL	window: Silicon	(for LT models)	180°C (356°F)
	(visually opaque, curved)

	Table 7: Close Focus Lens

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MI3

Accessories

For correct temperature readings, the transmission of the close focus lens must be set via the control panel in the communication box. See section 8.2 <Head> Page, page 50!

Make sure the measuring head and the close focus lens are at the same temperature!

Figure 66: Sensing Head with Close Focus Lens (XXXMI3ACCFL)

Figure 67: Spot Size Charts for Close Focus Lens

MI3

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Accessories

10.3 Accessories (1M, 2M Heads)

Fixed Mounting Bracket (XXXMI3100FB)

Adjustable Mounting Bracket (XXXMI3100ADJB)

Isolation Kit (MI3100ISOKIT)

Air Purge Collar (XXXMI3100AP)

Right Angle Mirror (XXXMI3100RAM)

Protective Window (XXXMI3100PW)

Air Purge Collar

Sensing Head

Mounting Nut

Fixed Mounting

Bracket

Protective Window	Water Cooled Housing
	(with Air Purge Collar)

Right Angle Mirror

Adjustable Mounting

Bracket

Figure 68: Overview of available accessories

Isolation Kit

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MI3

Accessories

10.3.1 Fixed Mounting Bracket

Figure 69: Dimensions of Fixed Mounting Bracket (XXXMI3100FB)

MI3

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Accessories

10.3.2 Adjustable Mounting Bracket

Figure 70: Dimensions of Adjustable Mounting Bracket (XXXMI3100ADJB)

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MI3

Accessories

10.3.3 Isolation Kit

The isolation kit (MI3100ISOKIT) can be used likewise for the fixed mounting bracket (XXXMI3100FB) and the adjustable mounting bracket (XXXMI3100ADJB). Two non-conductive rings insulate the sensing head (1M, 2M) electrically from the mounting bracket. The isolation kit is used to implement installations with one earth grounded point only, see section 4.5 Electrical Interference, page 24.

The maximal ambient temperature for the isolation kit is 250°C (482°F). The delivery for the isolation kit consists of two insulating rings made of Teflon and a mounting nut made of stainless steel. The desired mounting bracket needs to be ordered separately.

Make sure that the insulating rings are mounted so that both extruded lips facing each other. Use the two mounting nuts to secure the arrangement.

Extruded Lips facing each other

Isolation Kit

Fixed Mounting Bracket

Figure 71: Installing the Isolation Kit (MI3100ISOKIT)

Exemplary shown for fixed mounting bracket

Installing the Isolation Kit requires a mounting bracket in its latest version (inner diameter of 20 mm (0.79 in) instead of 18.5 mm (0.73 in) for the previous version)!

10.3.4 Air Purge Collar

The Air Purge Collar is used to keep dust, moisture, airborne particles, and vapors away from the lens. It can be mounted before or after the bracket. The Air Purge Collar comes with a 1/8” NPT stainless steel fitting. Air flows into the fitting and out the front aperture. The pressure of air should be 0.6 to 1 bar (8.7 to 15 PSI). Clean, oil free air is recommended.

Figure 72: Dimensions of Air Purge Collar (XXXMI3100AP)

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Accessories

10.3.5 Right Angle Mirror

The Right Angle Mirror is used to turn the field of view by 90° against the sensor axis. It is recommended when space limitations or excessive radiation do not allow for direct alignment of the sensor to the target. The mirror must be installed after the bracket and after the Air Purge Collar and screwed in fully. In dusty or contaminated environments, air purging is required to keep the mirror surface clean.

Figure 73: Dimension of Right Angle Mirror (XXXMI3100RAM)

When using the Right Angle Mirror, adjust the emissivity or transmissivity settings downward by 5%. For example, for an object with an emissivity of 0.65, you adjust the value down to 0.62. Or, you can keep the emissivity 0.65 and adjust the transmissivity from 1.0 to 0.95. This correction accounts for energy losses in the mirror.

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Accessories

10.3.6 Protective Window

Protective windows can be used to protect the sensing head from dust and other contamination. The protective window can be directly screwed onto the sensing head.

The following table provides an overview of the available windows.

Order number	Material		Transmission	T ambient
Order number	Material		Transmission	T ambient

XXXMI3100PW	holder: stainless steel	0.93 ±0.05		120°C
XXXMI3100PW	window: fused silica		(for 1M, 2M models)	(248°F)
	window: fused silica		(for 1M, 2M models)	(248°F)

Table 8: Available Protective Windows

Figure 74: Protective Window

MI3

Rev. G Nov/2015

Maintenance

11 Maintenance

Our sales representatives are always at your disposal for questions regarding application assistance, calibration, repair, and solutions to specific problems. Please contact your local sales representative, if you need assistance. In many cases, problems can be solved over the telephone. If you need to return equipment for servicing, calibration, or repair, please call our Service Department for authorization prior to return. Phone numbers are listed at the beginning of this document.

11.1 Troubleshooting Minor Problems


Symptom	Probable Cause	Solution
No output	No power to instrument	Check the power supply

Erroneous temperature	Faulty sensor cable	Verify cable continuity

Erroneous temperature	Field of view obstruction	Remove the obstruction

Erroneous temperature	Window lens	Clean the lens

Erroneous temperature	Wrong emissivity	Correct the setting

Temperature fluctuates	Wrong signal processing	Correct Peak/Valley Hold or Average settings

Temperature fluctuates	No ground for the head	Check wiring / grounding

Table 9: Troubleshooting

11.2 Fail-Safe Operation

The Fail-Safe system is designed to alert the operator and provide a safe output in case of any system failure. The sensor is designed to shutdown the process in the event of a set-up error, system error, or a failure in the sensor electronics.

The Fail-Safe circuit should never be relied on exclusively to protect critical processes. Other safety devices should also be used to supplement this function!

When an error or failure does occur, the display indicates the possible failure area, and the output circuits automatically adjust to their preset levels. See the following tables:


Symptom	0 to 5 V	0 to 10 V	0 to 20 mA	4 to 20 mA
Temperature over range*	5 V	10 V	21 to 24 mA	21 to 24 mA

Temperature under range*	0 V	0 V	0 mA	2 to 3 mA

Head ambient temperature out of range	5 V	10 V	21 to 24 mA	21 to 24 mA

Communication error between head and box	5 V	10 V	21 to 24 mA	21 to 24 mA

* related to zoomed temperature range

Table 10: Error Codes for Analog Output

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MI3

Maintenance

Symptom

Temperature over range

> 1200°C

> 1372°C

> 1768°C

(2192°F)

(2502°F)

(3214°F)

Temperature under range

-210°C

-50°C

(-346°F)

(-58°F)

Head ambient temperature out of range

> 1200°C

> 1372°C

> 1768°C

(2192°F)

(2502°F)

(3214°F)

Table 11: Error Codes for Thermocouple Output TC

Output

Error Code Description

T−−−

Communication error between head and box

T>>>

Temperature over range

T<<<

Temperature under range

Table 12: Error Codes via Field Bus

Display

Error Code Description

“No sensor”

No sensing head detected

“Sensing head #n lost”

Communication error between head and box

“>”

Temperature over top range* e.g. “>600°C”

“<”

Temperature under bottom range* e.g. “<−40°C”

* related to full measurement range

Table 13: Error Codes for LCD Display

11.3 Cleaning the Lens

Keep the lens clean at all times. Care should be taken when cleaning the lens. To clean the window, do the following:

1.Lightly blow off loose particles with “canned” air (used for cleaning computer equipment) or a small squeeze bellows (used for cleaning camera lenses).

2.Gently brush off any remaining particles with a soft camel hair brush or a soft lens tissue (available from camera supply stores).

3.Clean remaining “dirt” using a cotton swab or soft lens tissue dampened in distilled water.

Do not scratch the surface.

For finger prints or other grease, use any of the following:

Denatured alcohol

Ethanol

Kodak lens cleaner

Apply one of the above to the lens. Wipe gently with a soft, clean cloth until you see colors on the surface, then allow to air dry. Do not wipe the surface dry, this may scratch the surface.

If silicones (used in hand creams) get on the window, gently wipe the surface with Hexane. Allow to air dry.

MI3

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Maintenance

Do not use any ammonia or any cleaners containing ammonia to clean the lens. This may result in permanent damage to the lens’ surface!

11.4 Sensing Head Exchange

To exchange a sensing head, the following procedure is required:

1.Disconnect power to the box.

2.Disconnect all head wires from the box terminal.

3.Power the box.

4.The alarm indicator of the box starts to blink indicating a lost sensing head.

5.Press the button to navigate to the head page indicating a lost sensing head.

6.Decide whether you want to select:

a)<Remove Yes>: to remove the head permanently from the box by loosing all head parameters (head address de-allocated for other heads, alarm condition is reset) – the next head connected later will be detected as a new head and automatically assigned to a free head address.

b)<Remove No>: to keep the head assigned to the box by saving all head parameters for a future use without the need to parameterize that head again (head address reserved for that individual head, alarm condition is kept) – the same head connected later will be detected as a known head by keeping the previous address.

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MI3

DataTemp Multidrop Software

12 DataTemp Multidrop Software

12.1 Software Features

DataTemp Multidrop DTMD provides sensor setup, remote monitoring, and simple data logging for analysis or to meet quality record-keeping requirements. Additional features configurable with DTMD Software:

Eight-position “recipe” table that can be easily interfaced to an external control system

External reset signal input FTC for signal processing

External inputs FTC for analog emissivity adjustment or background radiation compensation

Remote digital communication and control of up to 32 sensors in an RS485 multidrop configuration

For more detailed information, see the comprehensive help feature in the DTMD software.

12.2 PC Requirements

PC with Windows 2000/XP/Vista/Win7, 64 MB RAM memoryabout 10 Mb free memory on the hard disc for program files

USB port with recommended USB/RS485 adapter (available as accessory), see section 10.1.2 USB/RS485 Adapter, page 67.

12.3 USB Driver Installation

Before running the DTMD Software the installation of an adequate USB driver is required, see section 5.6 USB, page 37.

12.4 Software Launch

Make sure any sensor is turned on and the USB driver is installed before running DTMD software. The Startup Wizard runs the first time you use the program. Please note:

The wizard shows active COM ports only!

The sensor requires the selection of <ASCII protocol>!

The DTMD software communicates to Comm Boxes only! A multidrop installation is related to a network with multiple Comm Boxes and not to a multiple head system with one Comm box only!

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RS485

13 RS485

The RS485 serial interface is used for long distances up to 1200 m (4000 ft) or for networked communication boxes.

To connect the RS485 interface to a standard computer you should use a dedicated adapter, see section 10.1.2 USB/RS485 Adapter, page 67. The RS485 interface allows the communication either via the standard Multidrop Software or directly via dedicated ASCII commands, see section 18 ASCII Programming, page 116.

Specification:
Physical layer:	RS485, 2 wire, half-duplex, electrically isolated
Baud rate:	9.6, 19.2, 38.4, 57.6, 115.2 kBit/s
Settings:	8 data bits, 1 stop bit, no parity, flow control: none (half duplex mode)
Connection:	terminal
Address range:	1 to 32
	0 for stand-alone unit or broadcast transmission

13.1 Wiring

13.1.1 Comm Box (metal)

Termination


Terminal	RS485
A	positive signal (D+)

B	negative signal (D-)

Figure 75: RS485 Terminal for Comm Box (metal)

13.1.2 Comm Box (DIN)

13.2 ASCII Programming

For the programming details, see section 18 ASCII Programming, page 116.

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MI3

Profibus

14 Profibus

Profibus DP-V0 defines a cyclical data exchange between a master (e.g. a PLC) and a slave (MI3 sensor). At start-up first an array of parameters (Profibus specific data) is sent from the master to the slave, followed by an array with the configuration (sensor specific presetting’s taken from the GSD file) also sent from the master to the slave.

After start-up the bus switches to the data exchange state. In this state inand output data gets exchanged cyclically between master and slave. The input data is sent from the slave to the master and contains mainly the measured temperatures of the MI3 sensor, see section 14.2.2 Input Data, page 93. The output data is sent from the master to the slave and contains a set of selected sensor parameters, see section 14.2.3 Output Data, page 94. In case of an error in start-up phase or during data exchange diagnostic data is sent to the master, see section 14.2.4 Diagnose Data, page 94.

Each Profibus device comes with a device description file (GSD file) which is read by the programming software of the master to define the slave.

Specification:

Version:	Profibus DP-V0
Physical layer:	RS485, 2 wire, electrically isolated
Baud rate:	9.6 kBit/s to 12 MBit/s (automatic negotiated)
Connection	terminal or Sub-D or M12
Address range:	1 to 125 (for the Profibus device)
ID	0D36
GSD Datei	RAY_0D36.gsd
Head support	up to 8 sensing heads (MI3 or MI3100)

14.1 Wiring

14.1.1 Comm Box (metal)





X1 Pin Terminal	Profibus
1	A (negative signal)

2	B (positive signal)

3	Shield

4	GND (output, used for external termination)

5	n.a.

6	+ 5 V (output, used for external termination)

LED, red	blinking, no data communication

LED, yellow	ON: data-exchange

Figure 76: Profibus Terminal for Comm Box (metal)

MI3

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Profibus

A Sub-D female connector or a M12 female connector can be ordered separately for Profibus. The M12 connector is B-coded. Please note the Sub-D connector is not IP rated!

1 2 3 4 5

6 7 8 9

Figure 77: Sub-D Connector (…P2) and M12 Connector (…P1)


Profibus	Sub-D Pin	M12 Pin
	(cable color)	(cable color)
A (negative signal)	8 (green)	2 (white)

B (positive signal)	3 (yellow)	4 (black)

Shield

GND	5 (white)	3 (blue)

n.a.

+ 5 V	6 (brown)	1 (brown)

Figure 78: Profibus Pin Assignment for Sub-D / M12 Connector

The termination for Profibus networks must be realized externally by the user!

Slaven

Slaven+1

Termination

Slaven-1

Figure 79: Exemplary Network with External Termination

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MI3

Profibus

14.1.2 Comm Box (DIN)

Termination

Indicator

Pin	Profibus
1	n.a.

2	Shield

3 (negative signal)	A2 (not supported while termination “on”)

4 (positive signal)	B2 (not supported while termination “on”)

5 (negative signal)	A1

6 (positive signal)	B1

7	Shield

8	n.a.

9	DE

LED, yellow	ON: data-exchange

Figure 80: Terminal for Comm Box (DIN 6TE)

MI3

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Profibus

14.2 Programming

14.2.1 Parameter Data


Byte	Address	Description	Format		Range
	without
	offset
0 to 6		Fix

7		DP-V1 Status1

8		DP-V1 Status2
9		DP-V1 Status3
10	3	Temp. unit	67=°C, 70=°F		67 or 70

11	4	Reserved

12, 13	5	Bottom temp. of output 1	in 0.1°C /°F

14, 15	7	Top temp. of output 1	in 0.1°C /°F

16, 17	9	Bottom temp. of output 2	in 0.1°C /°F

18, 19	11	Top temp. of output 2	in 0.1°C /°F

20	13	Source (head) for output-1	head number		1…8

21	14	Type of source for output-1	73 = I (internal temp.)		73 or 84
			84 = T (object temp.)

22	15	Analog output mode 1	5	= TCJ	5…10, 99
			6	= TCK	default: 9
			7	= TCR
			8	= TCS
			9	= 0…5V
			10 = 0…10V
			99 = tristate (disabled)

23	16	Source (head) for output-2	head number		1…8

24	17	Type of source for output-2	73 = I (internal temp.),		73 or 84
			84 = T (object temp.)

25	18	Analog output mode 2	0	= 0…20mA	0, 4, 9, 10, 99
			4	= 4…20mA	default: 4
			9	= 0…5V
			10 = 0…10V
			99 = tristate (disabled)

26…39		reserved

40…43		reserved

44, 45	37	Emissivity Head_1	* 1000 (0.9  900)		100 … 1100
46, 47	39	Transmissivity Head_1	* 1000 (1.0  1000)		100 … 1000
46, 47	39	Transmissivity Head_1	* 1000 (1.0  1000)		100 … 1000
48, 49	41	Averaging time Head_1	* 0.1s (1s  10)		0 …9990

50, 51	43	Peak hold time Head_1	* 0.1s (1s  10)		0 …9990
52, 53	45	Valley hold time Head_1	* 0.1s (1s  10)		0 …9990

54, 55	47	Ambient temp. Head_1	in °C /°F		dev. range min..
					max
56, 57	49	Setpoint relay Head_1	in °C /°F		dev. range min..
					max
58	51	Relay alarm output control Head_1	0	= off	0, 1 or 2
58	51	Relay alarm output control Head_1	0	= off	0, 1 or 2
			1	= target temp.
			2	= internal temp.

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MI3

				Profibus

Byte	Address	Description	Format	Range
	without
	offset
59	52	Laser Head_1	0 = off, 1 = on,	0 or 1
			2 = flashing
60…63		reserved, for future consideration
64 …		Head_2

84 …		Head_3

104 …		Head_4

124 …		Head_5

144 …		Head_6

164 …		Head_7

184 …		Head_8

14.2.2 Input Data

The input data consists of modules that have a fixed position in the data field. There are two types of modules: <Box data> and <Data for one head>.

Module <Box data> consists of one byte in which bit0 gives the trigger state (configuration 0x12).

Module <Head data> consists of two bytes object temperature and two bytes head temperature (configuration 0x51). The format is 1/10 °C/°F.


	Address	Description
0		Box data: Trigger state

1, 2		Box data: Internal temperature

	3, 4	Head 1: Object temperature
	5, 6	Head 1: Head temperature
7, 8		Head 2: Object temperature

9, 10		Head 2: Head temperature

	11, 12	Head 3: Object temperature
	13, 14	Head 3: Head temperature
15, 16		Head 4: Object temperature

17, 18		Head 4: Head temperature

	19, 20	Head 5: Object temperature
	21, 22	Head 5: Head temperature
23, 24		Head 6: Object temperature

25, 26		Head 6: Head temperature

	27, 28	Head 7: Object temperature

	29, 30	Head 7: Head temperature
31, 32		Head 8: Object temperature

33, 34		Head 8: Head temperature

The slave expects one <Box data> module configured at the first position, followed by <Head data> modules. Any other configuration will cause a configuration error.

The input data length gets calculated from the count of configured modules. So, if only one head is connected and configured then only seven bytes are transferred. If all heads (maximal eight) are connected and configured then 35 bytes are transferred. If only one head is connected but eight heads are configured then also 35 bytes are transferred.

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Profibus

14.2.3 Output Data

The device does not have output data in the original meaning. But the output data may be used to change the initialization of the device (which was set once at start-up) when the bus is in data exchange mode.

To do so the following structure is defined:


	Address	Description
0		Type of parameter

1, 2		Parameter for Head 1

	3, 4	Parameter for Head 2

	5, 6	Parameter for Head 3
7, 8		Parameter for Head 4

9, 10		Parameter for Head 5

	11, 12	Parameter for Head 6
	13, 14	Parameter for Head 7
	13, 14	Parameter for Head 7
15, 16		Parameter for Head 8

The <Type of parameter> comes with the format described in section 14.2.1 Parameter Data, page 92, and can be set to the following parameters:


Number of type	Description
0	do not change anything

1	emissivity

2	laser

3	background temperature (background temperature compensation)

4	averaging time

5	peak hold time

6	valley hold time

7	set point for the relay

If <Type of parameter> is set to 0 then the output data gets ignored. So it should be set to 0 as default.

Attention: You should be aware that always all heads are updated! So you have to set all eight (or as much as heads are connected) parameters to the correct value!

14.2.4 Diagnose Data

The device uses the first 32 bytes of the Identifier Related Diagnosis.

The first 6 bytes consist of Standard Diagnosis dedicated to bus parameters. In this field byte 4 and 5 give the unit identifier (0D36 in our case).

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MI3

Profibus

Byte

Description

size of the diagnosis

7…9

reserved

(0x0A)

highest address of the connected heads  up to which index the user data is valid

(0x0B)

box error code

… 22 (0x0C …16)

last MI3-command which created an error as answer; ASCII code

(0x17)

head_1 error code

(0x18)

head_2 error code

(0x19)

head_3 error code

(0x1A)

head_4 error code

(0x1B)

head_5 error code

(0x1C)

head_6 error code

(0x1D)

head_7 error code

(0x1E)

head_8 error code

Table 14: Diagnose Data

Bit

Description

Self-test error

Box ambient temperature out of range

Sensing head communication error

Parameter error

Table 15: Error Bits of Box Diagnose

Bit

Description

Object temperature out of range

Ambient (internal) temperature out of range

Parameter error

Self-test error

reserved

Head registered but not connected  cable break?

Table 16: Error Bits of Head Diagnose

	Figure 81: Diagnose Data without Errors
MI3	Rev. G Nov/2015	95

Profibus

	Highest		Last bad
		head		MI3




Head 1				Head 8
error bits				error bits

Figure 82: Diagnose Data with Error “Cable Break at Head 1”

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MI3

Modbus

15 Modbus

The Modbus protocol follows the master/slave model. One master controls one or more slaves. Typically, the master sends a request to a slave, which in turn sends a response. The request/response mechanism is called a transaction. Requests and responses are also referred to as messages.

Specification:
Version:	Modbus serial line (RS485)
Mode:	RTU (Remote Terminal Unit)
Physical layer:	RS485, 2 wire, electrically isolated
Baud rate:	9.6, 19.2, 38.4, 57.6, 115.2 kBit/s
Connection	terminal
Address range:	1 to 247 (for the Modbus device)
Parity	even

The detailed Modbus specification can be found under http://www.modbus.org/.

15.1 Wiring

15.1.1 Comm Box (metal)





X1 Pin Terminal	Modbus
1	D0	(negative signal)

2	D1	(positive signal)

3	Shield

4	GND (output, used for external termination)

5	n.a.

6	+ 5 V (output, used for external termination)

LED, yellow	ON while communicating (ON for 2 s on initial power up)

LED, red	Error (ON for 2 s on initial power up)

Figure 83: Modbus Terminal for Comm Box (metal)

The termination for Modbus networks must be realized externally by the user!

MI3

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Modbus

15.1.2 Comm Box (DIN)

Termination

Indicators


Pin		Modbus
1		GND (output)

2		Shield

3	(negative signal)	D0_2 (not supported while termination “on”)

4	(positive signal)	D1_2 (not supported while termination “on”)

5	(negative signal)	D0_1

6	(positive signal)	D1_1

7		Shield

8		GND (output)

9		n.a.

LED, yellow		Communication

LED, red		Error

Figure 84: Terminal for Comm Box (DIN 6TE)

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MI3

Modbus

15.2 Programming

Functions codes and start addresses are listed in decimal.

15.2.1 Supported Functions

	Function code	Modbus Function	Description

01		Read Coils	Read n bits

02		Read Discrete Inputs	Read n bits

03		Read Holding Registers	Read n 16 bit words

04		Read Input Registers	Read n 16 bit words

06		Write Single Register	Write a 16 bit word

16		Write Multiple Registers	Write n 16 bit words

15.2.2 Parameter Data

32 bit registers are transmitted in full Big-Endian mode, meaning most significant word is transmitted first, least significant word is transmitted last. The byte order within a word is Big-Endian as well. While some registers hold integer values, there are some holding floating points. The interchange formats of the IEEE-754 standard for Floating-Point Arithmetic is used for representing floating points.

The following table lists all parameters, its content, their formats and usage.

15.2.2.1 Box Parameter

<k> … number of output channel, depending on the number of physically installed output channels of the Comm Box.

Items (registers, discretes or coils) are addressed starting at zero. Therefore items numbered 1-10000 are addressed as 0-9999.

Start

Size

Modbus Access

Data

Content

Values

MI3[M]

address

[bits]

Type

command

input register

short

error code for last

0: no error

request

1: value out of range

2: illegal head number

3: illegal analog output number

4: illegal output mode

5: output disabled error

99: unspecified error

input register

hex

Serial number

e.g. 98123

input register

string

Unit identification

e.g. MI3COMM

input register

string

Box Firmware Revision

e.g. 2.10

input register

short

Modbus slave address

1 .. 247

XAS

input register

string

Box special

e.g. RAY, LAS

holding register

integer

Baud rate RS485

9600, 19200, 38400, 57600, 115200

holding register

char

Temperature Unit

0x43 ('C'), 0x46 ('F')

input register

float

Box Temperature

holding register

short

Switch panel lock

0: unlocked, 1: locked

MI3

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Modbus


Start	Size	Modbus Access	Data	Content	Values	MI3[M]
address	[bits]		Type			command
100	8	discretes input	bit field	Get connected heads	bit 0: head 1 ..	HC
					bit 7: head 8
					bit high: head connected
					bit low: head disconnected

110	8	discretes input	bit field	Get registered heads	bit 0: head 1 ..	HCR
					bit 7: head 8
					bit high: head registered
					bit low: head not registered

120	16	holding register	short	Laser control (only with	0: off, 1: on	XL
				laser)

130	16	holding register	short	Relay alarm output	0: off	KB
				control	1: on
					2: norm. open
					3: norm. closed

410	32	input register	float	analog input 1 value	0 .. 5 V	TV1I

420	32	input register	float	analog input 2 value	0 .. 5 V	TV2I

430	16	input register	short	Trigger	0: off	XT
					1: on

5<k>0	16	holding register	short	analog output k mode	5: TCJ	XO<k>O
					6: TCK
					7: TCR
					8: TCS
					9: 0...5 V
					10: 0...10 V
					99: disable (tristate)

5<k>1	16	holding register	short	analog output k source	head number or 0:	O<k>O
					fixed value from 5<k>3

5<k>2	16	holding register	short	analog output k source	1: internal temp. of 5<k>1	O<k>O
				parameter	2: object temp. of 5<k>1

5<k>3	32	holding register	float	analog output k fixed	value within range set in address 5<k>0	-
				temp. value

5<k>5	32	holding register	float	analog output k bottom	device bottom temp. .. device top temp.	L<k>O
				temp. value

5<k>7	32	holding register	float	analog output k top	device bottom temp. .. device top temp.	H<k>O
				temp. value

100

Rev. G Nov/2015

MI3

Raytek MI3 Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual