LumaSense technologies IGAR 12-LO, ISR 12-LO, 12 User Manual

MANUAL

Series 12

ISR 12-LO • IGAR 12-LO IMPAC Pyrometer

Confidential Information

The material contained herein consists of information that is the property of LumaSense
Technologies and intended solely for use by the purchaser of the equipment described in this
manual. All specifications are subject to change without notice. Changes are made periodically
to the information in this publication, and these changes will be incorporated in new editions.

LumaSense Technologies prohibits the duplication of any portion of this manual or the use
thereof for any purpose other than the operation or maintenance of the equipment described
in this manual, without the express written permission of LumaSense Technologies.

Copyright

© LumaSense Technologies 2018. All rights reserved.

Trademarks

IMPAC is a trademark of LumaSense Technologies.

All other trademarks are trademarks, registered trademarks, and/or service marks of their
respective holders.

Service Centers

LumaSense Technologies, Inc.

North America
Sales & Service

Santa Clara, CA, USA
Ph: [phone]
Ph: [phone]
Fax: [phone]

LumaSense Technologies GmbH

Other Than North America
Sales & Support

Frankfurt, Germany
Ph: [phone]
Fax: [phone]

Global and Regional Centers

Our Headquarters

LumaSense Technologies, Inc.
Santa Clara, CA, USA
Ph: [phone]
Fax: [phone]

Americas, Australia, & Other Asia

LumaSense Technologies, Inc.
Santa Clara, CA, USA
Ph: [phone]
Fax: [phone]

Europe, Middle East, Africa

LumaSense Technologies GmbH
Frankfurt, Germany
Ph: [phone]
Fax: [phone]

France

LumaSense Technologies Sarl
Erstein, France
Ph: [phone]
Fax: [phone]

India

LumaSense Technologies, India
Mumbai, India
Ph: +

91 22 67419203

Fax: + 91 22 67419201

China

LumaSense Technologies, China
Shanghai, China
Ph: [phone]
Ph: [phone]

E-mail

[e-mail]

[e-mail]

[e-mail]

Website

http://www.lumasenseinc.com

Part No 3855217-EN
Revision E
August 2018

ISR 12-LO • IGAR 12-LO Operating Manual Contents • iii

Contents

1 General ............................................................................................................................. 5

1.1 Information about the user manual ...................................................................... 5

1.1.1 Legend ...................................................................................................................... 5

1.1.2 Terminology ............................................................................................................. 5

1.2 Safety ....................................................................................................................... 5

1.2.1 Laser targeting light ................................................................................................ 6

1.2.2 Electrical connection ................................................................................................ 6

1.3 Limit of liability and warranty .............................................................................. 6

1.4 Unpacking the Instrument ...................................................................................... 7

1.5 Service Request, Repair, or Support ...................................................................... 7

1.6 Shipments to LumaSense for Repair ..................................................................... 7

1.7 Transport, packaging, storage ............................................................................... 8

1.8 Disposal / decommissioning ................................................................................... 8

2 Introduction ..................................................................................................................... 9

2.1 Appropriate use ...................................................................................................... 9

2.2 Scope of delivery .................................................................................................... 9

2.3 Technical data .......................................................................................................... 9

2.4 Dimensions ............................................................................................................ 11

2.5 Physical User Interface .......................................................................................... 12

2.6 Accessories (Optional) .......................................................................................... 12

3 Controls and Connections ............................................................................................ 15

3.1 Electrical Installation ............................................................................................ 15

3.2 Pin assignment of the male socket on the back of the pyrometer .................. 15

3.2.1 Connector pin J ...................................................................................................... 16

3.3 Connecting the pyrometer to a PC ...................................................................... 17

3.3.1 Connecting to RS232 interface ............................................................................. 17

3.3.2 Connecting to RS485 interface / baudrate ........................................................... 17

3.3.3 Connection of additional analyzing devices ........................................................ 18

3.3.4 Wait time tw ........................................................................................................... 18

3.4 Mechanical Installation ........................................................................................ 18

3.4.1 Pyrometer ............................................................................................................... 18

3.4.2 Fiber optic............................................................................................................... 19

3.4.3 Optical head ........................................................................................................... 20

3.5 Optical head ........................................................................................................... 20

3.5.1 Spot size data (measuring distance from the front of the lens) ........................ 20

3.5.2 Adjusting the required measuring distance with optical head Ι or ΙΙ, fixed

adjusted .................................................................................................................. 21

3.5.3 Adjusting the required measuring distance with optical head ΙΙ, focusable .... 21

3.6 Laser targeting light ............................................................................................. 22

4 Settings / Parameter Descriptions ................................................................................ 23

4.1 Factory settings ..................................................................................................... 23

4.2 Instrument settings .............................................................................................. 23

ISR 12-LO • IGAR 12-LO Operating Manual Contents • iv

4.2.1 Key panel operation .............................................................................................. 24

4.2.2 Special indications ................................................................................................. 25

4.3 Basic range ............................................................................................................. 25

4.4 Material .................................................................................................................. 25

4.5 Temperature display in °C or °F ........................................................................... 25

4.6 Emissivity ε / emissivity slope K ........................................................................ 26

4.7 Response time / exposure time (t90) .................................................................... 27

4.8 Clear time of the maximum value storage (tCL) ................................................. 27

4.9 Operating mode .................................................................................................... 28

4.10 Switch-off level (OFF / %) ..................................................................................... 28

4.11 Analog Output ....................................................................................................... 29

4.12 Setting of subrange (from / to) ............................................................................ 29

4.13 Address .................................................................................................................. 29

4.14 Baud rate (kBaud) ................................................................................................. 29

5 Software InfraWin ......................................................................................................... 31

5.1 Connecting the pyrometer to a PC ...................................................................... 31

5.2 Installation ............................................................................................................ 31

5.3 Program start ........................................................................................................ 31

6 Maintenance .................................................................................................................. 33

6.1 Safety ..................................................................................................................... 33

6.2 Service .................................................................................................................... 33

6.3 Changing of optics ................................................................................................ 33

7 Data format UPP (Universal Pyrometer Protocol) ....................................................... 35

8 Reference numbers ....................................................................................................... 39

8.1 Reference numbers instrument ........................................................................... 39

8.2 Reference numbers accessories ........................................................................... 39

9 Troubleshooting ............................................................................................................ 41

Index ..................................................................................................................................... 43

ISR 12-LO • IGAR 12-LO Operating Manual General • 5

1 General

1.1 Information about the user manual

Congratulations on choosing the high quality and highly efficient IMPAC pyrometer.

This manual provides important information about the instrument and can be used as a work of
reference for installing, operating, and maintaining your IMPAC pyrometer. It is important that
you carefully read the information contained in this manual and follow all safety procedures
before you install or operate the instrument.

To avoid handling errors, keep this manual in a location where it will be readily accessible.

1.1.1 Legend

Note: The note symbol indicates tips and useful information in this manual. All notes
should be read to effectively operate the instrument.

Attention: Security note laser beam: Indicates to the danger of a built-in laser
targeting light.

Warnings and Cautions: The general warnings and cautions symbol signifies the
potential for bodily harm or damage to equipment.

MB Shortcut for Temperature range (in German: Messbereich).

1.1.2 Terminology

The terminology used in this manual corresponds to the VDI- / VDE-directives 3511, Part 4.

1.2 Safety

This manual provides important information on safely installing and operating the IMPAC
pyrometer. Several sections of this manual provide safety warnings to avert danger. These safety
warnings are specified with a warning symbol. You must read and understand the contents of
this manual before operating the instrument even if you have used similar instruments or have
already been trained by the manufacturer.

It is also important to continually pay attention to all labels and markings on the instrument and
to keep the labels and markings in a permanent readable condition.

Warning: The pyrometer is only to be used as described in this manual. It is
recommended that you only use accessories provided by the manufacturer.

In addition, signs and markings on the device are to be observed and maintained in legible
condition.

ISR 12-LO • IGAR 12-LO Operating Manual General • 6

1.2.1 Laser targeting light

For easy alignment to the measuring object the pyrometers can be equipped with a laser
targeting light. This is a visible red light with a wavelength between 630 and 680 nm and a
maximum power of 1 mW. The laser is classified as product of laser class II.

Warning: To reduce the risk of injury to the eyes, do not look directly

into the targeting laser and do not point the targeting laser
into anyone's eyes. The instrument is equipped with a class II
laser that emits radiation.

Safety regulations:

• Never look directly into the laser beam. The beam and spot can be watched safely from side.

• Make sure that the beam will not be reflected into eyes of persons by mirrors or shiny surfaces.

1.2.2 Electrical connection

Follow common safety regulations for mains voltage (e.g. 230 or 115 V AC) connecting
additional devices operating with this mains voltage (e.g. transformers). Touching mains voltage
can be mortal. A non-expert connection and mounting can cause serious health or material
damages.

Only qualified specialists are allowed to connect such devices to the mains voltage.

1.3 Limit of liability and warranty

All general information and notes for handling, maintenance, and cleaning of this instrument
are offered according to the best of our knowledge and experience.

LumaSense Technologies is not liable for any damages that arise from the use of any examples
or processes mentioned in this manual or in case the content of this document should be
incomplete or incorrect. LumaSense Technologies reserves the right to revise this document and
to make changes from time to time in the content hereof without obligation to notify any
person or persons of such revisions or changes.

All instruments from LumaSense Technologies have a regionally effective warranty period.
Please check our website at http://info.lumasenseinc.com/warranty

for up-to-date warranty
information. This warranty covers manufacturing defects and faults, which arise during
operation, only if they are the result of defects caused by LumaSense Technologies.

The Windows compatible software was thoroughly tested on a wide range of Windows
operating systems and in several world languages. Nevertheless, there is always a possibility that
a Windows or PC configuration or some other unforeseen condition exists that would cause the
software not to run smoothly. The manufacturer assumes no responsibility or liability and will
not guarantee the performance of the software. Liability regarding any direct or indirect
damage caused by this software is excluded.

The warranty is VOID if the instrument is disassembled, tampered with, altered, or otherwise
damaged without prior written consent from LumaSense Technologies; or if considered by
LumaSense Technologies to be abused or used in abnormal conditions. There are no user­serviceable components in the instrument.

ISR 12-LO • IGAR 12-LO Operating Manual General • 7

1.4 Unpacking the Instrument

Thoroughly inspect the instrument upon delivery to purchaser. Check all materials in the
container against the enclosed packing list. LumaSense Technologies cannot be responsible for
shortages against the packing list unless a claim is immediately filed with the carrier. The
customer must complete final claim and negotiations with the carrier.

Save all packing materials, including the carrier’s identification codes, until you have inspected
the pyrometer and find that there is no obvious or hidden damage. Before shipment, the
pyrometer was examined and has been tested. If you note any damage or suspect damage,
immediately contact the carrier and LumaSense Technologies, Inc.

1.5 Service Request, Repair, or Support

Contact LumaSense Technologies Technical Support in case of a malfunction or service request.
Provide clearly stated details of the problem as well as the instrument model number and serial
number. Upon receipt of this information, Technical Support will attempt to locate the fault
and, if possible, solve the problem over the telephone.

If Technical Support concludes that the instrument must be returned to LumaSense Technologies
for repair, they will issue a Return Material Authorization (RMA) number.

Return the instrument upon receipt of the RMA number, transportation prepaid. Clearly
indicate the assigned RMA number on the shipping package exterior. Refer to Section 1.6,
Shipments to LumaSense for Repair, for shipping instructions.

Technical Support can be contacted by telephone or email:

Santa Clara, California

• Telephone: [phone] or [phone]

• Email: [e-mail]

Frankfurt, Germany

• Telephone: [phone]

• Email: [e-mail]

Erstein, France

• Telephone [phone]

• Email: [e-mail]

1.6 Shipments to LumaSense for Repair

All RMA shipments of LumaSense Technologies instruments are to be prepaid and insured by
way of United Parcel Service (UPS) or preferred choice. For overseas customers, ship units air­freight, priority one.

The instrument must be shipped in the original packing container or its equivalent. LumaSense
Technologies is not responsible for freight damage to instruments that are improperly packed.

Contact us to obtain an RMA number (if Technical Support has not already assigned one).
Clearly indicate the assigned RMA number on the shipping package exterior.

ISR 12-LO • IGAR 12-LO Operating Manual General • 8

Send RMA Shipments to your nearest technical service center:

Customers in North America
should send RMA Shipments to:

Santa Clara, California

All other customers should
send RMA Shipments to:

Frankfurt, Germany

LumaSense Technologies, Inc.
3301 Leonard Court
Santa Clara, CA 95054 USA
Telephone: [phone]
[phone]

Email: [e-mail]

LumaSense Technologies GmbH
Kleyerstr. 90
60326 Frankfurt
Germany
Telephone: [phone]

Email: [e-mail]

1.7 Transport, packaging, storage

With faulty shipping, the instrument can be damaged or destroyed. To transport or store the
instrument, please use the original box or a box padded with sufficient shock-absorbing
material. For storage in humid areas or shipment overseas, the device should be placed in
welded foil (ideally along with silica gel) to protect it from humidity.

The pyrometer is designed for a storage temperature of -20 to 70 °C with non-condensing
conditions. Storing the insturment out of these conditions can cause damage or result in
malfunction of the pyrometer.

1.8 Disposal / decommissioning

Inoperable IMPAC pyrometers must be disposed of in compliance with local regulations for
electro or electronic material.

ISR 12-LO • IGAR 12-LO Operating Manual Introduction • 9

2 Introduction

2.1 Appropriate use

The pyrometers ISR 12-LO and IGAR 12-LO are digital, highly accurate 2-color pyrometers with
fiber optic for non-contact temperature measurement on metals, ceramics, graphite etc.
between 300 and 3300 °C.

The pyrometers measures in the 2-color principle (ratio principle) in which two adjacent
wavelengths are used to calculate the temperature. This technique offers the following
advantages compared with the standard one-color pyrometers:

• The temperature measurement is independent of the emissivity of the object in wide

ranges.

• The measuring object can be smaller than the spot size.

• Measurements are unaffected by dust and other contaminants in the field of view or by

dirty viewing windows.

Additionally, the pyrometer can be switched to 1-color mode and used like a conventional
pyrometer.

The metal mode allows measurements of metals and alloys with unknown K-factor (emissivity
slope).

The instrument is equipped with an optical fiber (length up to 30 m), which can be used in very
high ambient temperatures up to 250 °C without cooling and it is unaffected by electromagnetic
interferences.

2.2 Scope of delivery

Pyrometer, optical fiber and optical head as per configuration, works certificate, PC software
InfraWin, and user manual.

Note: The connection cable is not included with the instrument and must be ordered
separately (see section 8, Reference numbers).

2.3 Technical data

Temperature ranges:

ISR 12-LO: MB 13: 600 … 1300 °C

MB 17: 450 … 1700 °C

MB 18: 750 … 1800 °C
MB 25: 900 … 2500 °C
MB 33: 1000 … 3300 °C

IGAR 12-LO: MB 10: 300 … 1000 °C

MB 13: 350 … 1300 °C
MB 22: 500 … 2200 °C

MB 25: 550 … 2500 °C

Sub range:

Any range adjustable within the temperature range
minimum span 51 °C

Signal processing:

Photoelectric current, digitized

ISR 12-LO • IGAR 12-LO Operating Manual Introduction • 10

Spectral range:

ISR 12-LO:

λ

1

: 0.8 µm/

λ

2

: 1.05 µm

IGAR 12-LO: MB 10:

λ

1

: 1.52 µm/λ2: 1.64 µm

All other MB: λ1: 1.28/λ22: 1.65 µm

Measuring modes:

Ratio- (2-color-) / mono- / metal mode switchable

Power supply:

24 V DC (15 to 40 V DC) or 24 V AC (12 to 30 V AC), 48 to 62Hz

Power consumption:

Max. 10 W

Analog output:

0 to 20 mA or 4 to 20 mA switchable, load 0 to 500 Ohm
Test current 10 mA by pressing test key

Load:

0 to 500 Ω

Switch contact:

Max. 0.15 A (only active with automatic clear mode or tCL ≥ 0.5 s)

Digital Interface:

Switchable: RS232 or RS485 addressable (half duplex),
baud rate 2.4 up to 115.2 kBd

Resolution:

Display: 1 °C

Interface: 0.1 °C

Analog output: < 0.025% of temperature range

Isolation:

Power supply, analog output and digital interface are galvanically isolated
from each other

Parameters:

Adjustable or readable at the device or via interface:

Emissivity ε, emissivity slope K, exposure time t90, clear times for maximum
value storage t

CL

, automatically or external deletion of maximum value
storage, switching measuring mode, switch-off limit, warning level dirty
window, 0 to 20 or 4 to 20 mA, sub range, address, baud rate, °C/°F
Readable at the device or via interface:
Measuring temperature
Adjustable only via interface commands:

Wait time tW, keyboard lock

Emissivity slope K:

ε1 / ε2: 0.8 to 1.2 adjustable in steps of 0.001

Emissivity ε:

0.1 to 1 adjustable in steps of 0.001

Exposure time t90:

2 ms (with dynamical adaptation at low signal levels),
adjustable at 0.01 s; 0.05 s; 0.25 s; 1 s; 3 s; 10 s

Maximum value storage:

Built-in single or double storage. Clearing with adjusted time t

clear

(0.00 s; 0.01 s; 0.05 s; 0.25 s; 1 s; 5 s; 25 s), extern, via interface or automatically

with the next measuring object

Uncertainty: *

(ε =1, t90=1 s, T

amb.

= 23 °C)

ISR 12-LO: 0.4% of reading in °C + 1 °C (< 1500 °C)

0.6% of reading in °C + 1 °C (> 1500 °C)
IGAR 12-LO: 0.5% of reading in °C + 1 °C (< 1500 °C)

0.7% of reading in °C + 1 °C (> 1500 °C)

Repeatability: *

(ε =1, t90=1 s, T

amb.

= 23 °C)

ISR 12-LO: 0.2% of reading in °C + 1 °C
IGAR 12-LO: 0.3% of reading in °C + 1 °C

* The temperature of fiber and optical head must be at least 30 °C lower than the measuring temperature to get a correct

temperature reading

Protection class:

IP65 (DIN 40 050)

Ambient temperature:

Converter housing: 0 to 60 °C (ISR 12-LO); 0 to 50 °C (IGAR 12-LO)

Storage temperature:

-20 to 70 °C

Rel. humidity:

Non-condensing conditions

Weight:

Converter: 2.2 kg; optical head II: 140 g; fiber (2.5 m): 250 g

Connector:

12 pin Connector

ISR 12-LO • IGAR 12-LO Operating Manual Introduction • 11

Sighting:

Laser targeting light (max. power level < 1 mW,
λ = 630-680 nm, CDRH class II).
(With IGAR 12-LO measurements are possible while laser targeting light is
switched on, with ISR 12-LO measuring is stopped)

CE-label:

According to EU directives about electromagnetic immunity

Note: The determination of the technical data of this pyrometer is carried out in

accordance with VDI/VDE directive IEC TS 62942-2, “Determination of the technical data
for radiation thermometers”.

The calibration / adjustment of the instruments was carried out in accordance with
VDI/VDE directive “Temperature measurement in industry, Radiation thermometry,
Calibration of radiation thermometers”, VDI/VDE 3511, Part 4.4.

For additional details on this directive, see http://info.lumasenseinc.com/calibration

or

order the directive from “Beuth Verlag GmbH” in D-10772 Berlin, Germany.

2.4 Dimensions

Pyrometer housing:

Optical heads:

Type I (small optics):

Type II (focusable optics):

Type II (fixed adjusted):

all dimensions in mm

ISR 12-LO • IGAR 12-LO Operating Manual Introduction • 12

2.5 Physical User Interface

Pyrometer Interior view pyrometer housing

1 Display for clear mode
2 Display °C or °F
3 LED display for temperature or parameters
4 Display for measuring mode
5 Mounting screws for cover (4 units)
6 Fiber optic
7 Optical head

8 Display

9 Parameter indicator
10 Interface switch
11 Push button for test current
12 Setting keys
13 Electrical connection
14 Connection for fiber optic
15 Mounting holes

2.6 Accessories (Optional)

Numerous accessories guarantee easy installation of the pyrometer. The following overview
shows a selection of suitable accessories. You can find the entire accessory program with all
reference numbers in Chapter 8, Reference numbers.

Mounting:

For mounting and aligning the pyrometer to the

measured object mounting angles or a

ball and

socket mounting is available. The

ball and socket

mounting is an easy way to a

lign the pyrometer to

the measured object. The clamping-

screws of the ball

and socket mounting enable an easy and fast

adjustment of the pyrometer in all directions.

Mounting angle

Ball and socket mounting

9

8

13

14

15

10

11

12

1

2

3 4 6

7

5

ISR 12-LO • IGAR 12-LO Operating Manual Introduction • 13

Air purge:

The air purge

protects the lens from contamination

with dust and moisture. It must

be supplied with dry

and oil-free pressurized air (1,5 m³ / h) and gener

ates

an air stream shaped like a cone.

Air purge

Displays:

Additionally, to the built-

in temperature indicator of

the pyrometer LumaS

ense offers several digital

displays which can also be used for remote

parametrizing of the pyrometer.

Digital display

DA 6000

ISR 12-LO • IGAR 12-LO Operating Manual Introduction • 14

To ensure consistent document formatting, this page was intentionally left blank.

ISR 12-LO • IGAR 12-LO Operating Manual Controls and Connections • 15

3 Controls and Connections

3.1 Electrical Installation

The ISR 12-LO and the IGAR 12-LO are powered by a voltage of 24 V DC (15 to 40 V DC) or
24 V AC (12 to 30 V AC). As the instrument is operating with heated and thermostatically
controlled sensors, it needs a warm-up of up to 5 minutes (during this warm-up period the LED
display indicates “7777“), after that the instrument is ready for use. To switch off the
instrument, interrupt the power supply or unplug the electrical connector.

To meet the electromagnetic requirements (EMV), a shielded connecting cable must be used.
The shield of the connecting cable must be connected only on the pyrometer’s side. On side of
the power supply (switch board) the shield must be open to avoid ground loops.

LumaSense offers connecting cables; they are not part of standard scope of delivery. The main
connecting cable has wires for power supply, interface, analog output, external laser switch and
external clear of maximum value storage via contact (see section 8, Reference numbers) and
12 pin connector. The cable includes a short RS232 adapter cable with a 9 pin SUB-D connector
for direct PC communication. This adapter is not used in combination with RS485 interface.

3.2 Pin assignment of the male socket on the back of the

pyrometer

Pin Color Indication

K white + 24 V power supply (or 24 V AC)

A

brown

0 V power supply

L green

+ I

outp.

analog output

B yellow

– I

outp.

analog output

H gray

External switch for targeting light (bridge to
K)

J pink

See 3.2.1: operating mode contact, external

clearing of maximum value storage (bridge

to K) or output for dirty window monitoring

G red DGND (Ground for interface)

F black RxD (RS232) or B1 (RS485)
C violet TxD (RS232) or A1 (RS485)
D gray/pink B2 (RS485) (bridge to F)
E red/blue A2 (RS485) (bridge to C)

M orange

Screen only for cable extension,
don’t connect at the switchboard

K A B

C D J

G F E H M

L

Connector

Pin assignment

(side of male inserts)

ISR 12-LO • IGAR 12-LO Operating Manual Controls and Connections • 16

3.2.1 Connector pin J

The connector pin J can be used for 4 different functions:

1. Operating mode contact: During the warm-up of the pyrometer (after connection to

the power supply, the LED display on the converter indicates “7777”) pin J is connected
to the power supply voltage. This voltage is connected by a relays switch (max.
continuous current 0.4 A) to pin K (power supply voltage). This relays switch opens when
the warm-up is finished, and the pyrometer is in operating mode. For that reason, this
pin can be used as operating mode contact.

2. External clearing of the maximum value storage: When the pyrometer is in

operating mode, pin J can be used for external clearing of maximum value storage
(see section 4.8). To clear the maximum value storage, connect pin J for a short time to
pin K (power supply voltage).

The function “external clearing” is activated with the following conditions:

• Warm-up is finished (no display “7777“)

• The clear time is set to “extern“ (see section 4.8).

• The lens contamination monitoring is switched off. This can be done via software

InfraWin in “color-bar“ window. The warning level “dirty window” must be set to
0% (see section 4.1).

3. Hold function: When the hold function mode is activated the current temperature,

reading is frozen as long as J and pin K are connected (see 4.8 clear time for the
maximum value storage).

4. Lens contamination monitoring system: The pyrometers are equipped with a

contamination monitoring system. Contamination of lens or sighting window or dust in
the sighting path of the pyrometer can interfere the signal in such a high level that a
correct temperature measurement will be impossible (this can also happen if the object
is smaller than the spot size of the pyrometer). To avoid wrong measurements in
advance, a warning signal can be set to a certain contamination level. If contamination
reaches this level (or at a certain too low signal level), a built-in relay (max. continuous
current 0.4 A) connects pin J to pin K (power supply voltage). The setting of the switch
level (0 … 99%) can be done via software InfraWin in “color-bar“ window. If the
warning level “dirty window” is set to 0% (see section 4.1) the lens contamination
monitoring system is switched off and pin J has the function “external clearing” of
maximum value storage (factory setting).

The lens contamination monitoring system is activated with the following conditions:

• Warm-up is finished (no display “7777“)

• The clear time is not set to “extern“ (see sections 4.1 and 4.8).

• The pyrometer is operating in “2-color mode“ (see section 4.9)

ISR 12-LO • IGAR 12-LO Operating Manual Controls and Connections • 17

3.3 Connecting the pyrometer to a PC

The pyrometers are equipped with a serial interface RS232 or RS485 (switchable at the
pyrometer). Standard on a PC is the RS232 interface. At this interface one pyrometer can be
connected if the interface is set to RS232. Only short distances can be transmitted with RS232
and electromagnetic interferences can affect the transmission.

With RS485 the transmission is to a large extend free of problems, long transmission distances
can be realized, and several pyrometers can be connected in a bus system. If RS485 is not
available at the PC, it can be realized with an external converter which converts the RS485 in
RS232 for a standard connection to a PC.

When using a converter RS485 / RS232 take care, that the converter is fast enough to receive the
pyrometer’s answer to an instruction of the master. Most of the commonly used converters are
too slow for fast measuring equipment. So, it is recommended to use the LumaSense converter
(order no. 3 852 430).

With a slow RS485 connection it is also possible to set a wait time at the pyrometer which delay
the response of a command to the pyrometer (see 3.4.3 Wait time).

3.3.1 Connecting to RS232 interface

The transmission rate (in baud) of
the serial interface is dependent on
the length of the cable. Values
between 2400 and 115200 Bd may
be set.

The baud rate must be reduced by
50% when the transmission
distance is doubled (see also

4.14 Baud rate).

Typical cable length for RS232 at

19200 Bd is 7 m.

PC’s side

(soldering side)

K A B C D

J

G F E

H

M

L

1 2 3 4 5

6

7

8 9

DGND (red)

RxD (black)

TxD (violet)

Pyrometer’s side

(soldering side)

3.3.2 Connecting to RS485 interface / baudrate

Half-duplex mode:

A1 and A2 as well as B1 and B2 are
bridged in the 12-pin round connector
of the connecting cable, to prevent
reflections due to long stubs. It also
safeguards against the interruption of
the RS485 Bus system should a
connecting plug be pulled out. The
master labels mark the connections on
the RS485 converter. The transmission
rate of the serial interface in Baud (Bd)
is dependent on the length of the
cable. Values between 1200 and
115 kBd may be set.

The baud rate is reduced by 50% when
the transmission distance is doubled (see

4.14 Baud rate). Typical cable length

for 19200 Bd is 2 km.

Terminator 120 Ohm

A

B

S

K A B

C

D

J

G F E H M

L

K A B

C

D

J

G F E H M

L

K A B

C

D

J

G F E H M

L

DGND

B1

A2

B2

A1
DGND

B1

A2

B2

A1
DGND

A2

B2

A1

B1

Master

Pyrometer 32

e.g. address 31

Pyrometer 2

e.g. address 01

Pyrometer 1

e.g. address 00

ISR 12-LO • IGAR 12-LO Operating Manual Controls and Connections • 18

3.3.3 Connection of additional analyzing devices

Additional analyzing

instruments, for example a

LED digital display instrument

only needs to be connected
to a power supply and the
analog outputs from the
pyrometer. Other instruments
like a controller or printer
can be connected to the
display in series as shown
above (total load of
resistance max.

500 Ohm).

yellow

LED digital display

Controller
Power supply

green

brown

white

230 V ~

24 V DC

°C

Printer

3.3.4 Wait time t

w

Using a pyrometer with RS485 it is possible that the connection is not fast
enough to receive the pyrometer’s answer to an instruction of the master. In
this case a wait time can be set to slow down the data transfer (e.g.: t

w

= 02

at a baud rate 9600 means a wait time of 2/9600 sec).

Note: Only available via interface commands, see 7, Data format UPP.

3.4 Mechanical Installation

3.4.1 Pyrometer

To fix the converter, 4 drill holes for
screws with 4 mm diameter are
visible after removing the cover.

For fixing the optical heads different
mounting supports are available (see

2.6 Accessories (Optional)).

Settings:

00 Bit

.

.

.

99 Bit

Drill holes

cover

ISR 12-LO • IGAR 12-LO Operating Manual Controls and Connections • 19

3.4.2 Fiber optic

The fiber has a blue or red mark for
correct connection to the pyrometer.
The color mark must be mounted on
the pyrometer’s side.

The fiber optic is equipped with a
special connector which allows it to
fix the fiber only in one position.
Please notice that the connector of
the fiber with the pin is fixed in the
correct position before plug and
socket can be bold together.

Note: The light guide end of the fiber optic cable as well as the socket/connector and
the optical head must always be protected with the caps when not connected.

Ambient temperature

The fiber and optical head can withstand ambient temperatures up to 250 °C without cooling on
the side of the optical head.

Serial number / fiber replacement

The original fiber has a serial number which is also on the pyrometer’s housing. If required, the
fiber can be replaced by a new original IMPAC-brand fiber. In this case, the pyrometer has to be
calibrated together with the fiber (service).

The original fiber has a serial number which is also
on the pyrometer’s housing.

If required, the fiber can be replaced by a new
original IMPAC fiber. In this case the pyrometer
must be calibrated together with the fiber
(service).

Minimum Bending Radius

ISR 12-LO: MB 13;

IGAR 12-LO: MB 10

(blue mark)

ISR 12-LO: MB 18, 25, 33; IGAR

12-LO: MB 13, 17, 22, 25

(red mark)

Short time (max. 200 °C)

100 mm

50 mm

Permanent (max. 200 °C)

300 mm

120 mm

Attention: A hot fiber optic cable should not be exposed to continual movement!

Fibre

Screw connection

Pin

Cut-out

Red or blue mark

ISR 12-LO • IGAR 12-LO Operating Manual Controls and Connections • 20

3.4.3 Optical head

The FSMA connector on the side of the
optical head doesn’t need a special
justification if bold together.

3.5 Optical head

Depending on the application, the instrument will be delivered with a small or a big optical
head.

Type Ι (small optical head): With the very small dimensions the

optical head I is suited for use in confined spaces. The optics is adjusted

to one of the measuring distances mentioned in the table 3.5.1. The
mentioned spot size will be achieved in exactly this distance (other
distances on request).

Type ΙΙ (optical head, focusable): With the focusable optical head II
each measuring distance can be adjusted within the mentioned limits
to achieve the smallest spot size in the required distance. The spot size
at the shortest and longest distance is mentioned in the following
table 3.5.1 Spot sizes at intermediate distances must be calculated by
interpolation.

Type ΙΙ (optical head, fixed adjusted): The fixed adjusted optical
head II has a similar size as the focusable optical head but with a fixed
focusing distance similar to type I (see table 3.5.1).

Note: The optical heads can be changed against another from the same type.
A recalibration of the pyrometer is not necessary.

3.5.1 Spot size data (measuring distance from the front of the lens)

Optical

head

Meas.

Distance

a (mm)

Spot size

ISR 12-LO: MB 13

IGAR 12-LO: MB 10

M [mm]

Spot size

ISR 12-LO: MB 18, 25, 33

IGAR 12-LO: MB 13, 17, 22, 25

M [mm]

Aperture

D (mm)*

Type I

(small

optics)

120

2.2

1.2

7

260

5

2.6

7

700

14

7.2

7

Type II

(focusable
optics)

88 to 110

0.8 to 1.1

0.45 to 0.6

17

95 to 129

0.9 to 1.3

0.5 to 0.75

16

105 to 161

1.1 to 1.7

0.6 to 1.0

15

200 to 346

1.5 to 2.8

0.8 to 1.5

17

247 to 606

2.0 to 5.2

1.1 to 2.7

16

340 to 4500

2.8 to 42

1.5 to 22

15

Type II

(fixed
adjusted)

87

0.75

0.45

17

200

1.5

0.8

17

600

5.3

2.7

15

4500

42

22

15

Color mark of fiber Blue Red

ISR 12-LO • IGAR 12-LO Operating Manual Controls and Connections • 21

*) The aperture is the effective lens diameter of the optics. It is depending on the objective
length which is changing if the measuring distance will be adjusted. The biggest aperture value
belongs to the fully extended objective, the smallest aperture value if the objective is turned to
its smallest size. Intermediate values have to be interpolated (e.g. calculating the spot size if the
measuring distance varies from the adjusted value).

The spot sizes, mentioned in the table above, will be only achieved at the measuring distances
of the corresponding optics or with the focusable optics at the adjusted distance. Decreasing or
increasing the measuring distance enlarges the spot size.

Spot sizes for intermediate distances, that are not shown on the optical profiles, may be
calculated using the following formula:

Aperture-Ø D

Ø M

Ø M

1

Ø M

2

a

a

2

a

1

3.5

D

)DM

(

a

a

M

1

1

−

+=

DD)(M

a

a

M

2

2

+−=

Note: The InfraWin program includes a calculator (“IR calculator“) that roughly estimates
the unknown values.

Note: The pyrometer can measure objects at any distance, but it has to be at least as big as
the spot size of the pyrometer.

3.5.2 Adjusting the required measuring distance with optical head Ι or

ΙΙ, fixed adjusted

A tape can be used to determine the distance between the object and
pyrometer. The measuring distance is always measured from the front of the
lens.

If the laser is switched on, its smallest spot is in the measuring distance of
the corresponding optics or adjusted distance and it marks the center as well as the size of the
spot.

3.5.3 Adjusting the required measuring distance with optical head ΙΙ,

focusable

For adjustment of the correct distance, untighten
the fixing nut and vary the length of the optical
head by turning the lens tube. In the correctly
focused distance the laser has its smallest spot size
(sharpest image). After adjustment tighten the

fixing nut.

ISR 12-LO • IGAR 12-LO Operating Manual Controls and Connections • 22

3.6 Laser targeting light

For easy alignment to the measuring object the pyrometers are equipped
with a laser targeting light. The laser marks the center of the measuring spot
and corresponds to the spot size. With the IGAR 12-LO the measurement is
not effected by the laser targeting light. As the laser targeting light
influences the measurement of the ISR 12-LO the last measured value is hold in the analog
output. The display shows during this time the intensity of the relative signal. In mono mode the
display shows a blinking “8000”. The laser targeting light is switched off automatically after
approx. 2 min or after a further push of the PL key.

Note: The smallest diameter of the laser spot indicates the correctly focused
measuring distance. The diameter corresponds to the spot size!

The laser targeting light can be switched on and off either by pressing the button at the
housing (see also section 3.6 Key panel operation) or by using an external contact (see

3.2 Pin assignment for the connector on the bottom side of the pyrometer) or via PC and the
software InfraWin. After two minutes the laser targeting light is switched off automatically.

Warning: To reduce the risk of injury to the eyes, do not look directly

into the targeting laser and do not point the targeting laser
into anyone's eyes. The instrument is equipped with a
class II laser that emits radiation.

Note: The laser warning signs on the pyrometer should be easily viewable at all
times, even after it has been installed.

Note: To prevent the damage of the laser, the pilot light switches off automatically
if the internal temperature of the device exceeds approx. 55 °C (it can be switched on
again, if the internal temperature is lower than 55 °C)!

ISR 12-LO • IGAR 12-LO Operating Manual Settings / Parameter Descriptions • 23

4 Settings / Parameter Descriptions

Certain settings must be done for use of the entire specifications of the pyrometer. The
most settings can be done at the instrument directly, a few (e.g. setting of
contamination level) only via software InfraWin.

After removing the cover of the housing, the setting keys of the pyrometer are accessible.

Note: Please make sure that the pyrometer is not contaminated while open.

4.1 Factory settings

Temperature display (°C / °F) = °C

Emissivity (ε) = 1.000

Emissivity slope (K) = 1.000

Exposure time (t

90

) = 0.00

Clear time (t

Clear

) = 0.00

Operating mode (1 / 2 / M) = 2

Max / min = maximum value storage preset

Analog output (0 / 4 mA) = 0 ... 20 mA

Sub range (from / to) same as basic temperature range

Address = 00

Switch-off limit = 10%

Baud rate (kBaud) = 19.2 kBd

Switch for interface (RS485 / RS232) = RS232

Warning level “dirty window“ = 0% (equivalent to “off”)

4.2 Instrument settings

Certain settings must be done for use of the entire specifications of the pyrometer. The most
settings can be done at the instrument directly, a few (e.g. setting of contamination level) only
via software InfraWin.

After removing the cover of the housing, the setting keys of the pyrometer are accessible.

Note: Please make sure that the pyrometer is not contaminated while open.

ISR 12-LO • IGAR 12-LO Operating Manual Settings / Parameter Descriptions • 24

4.2.1 Key panel operation

Display °C or °F

Parameter indicator:

Emissivity / emissivity slope (ε / K)

Exposure time (t

90

)

Clear time of maximum value

storage (t

CL

)

Operating mode(1/2/M)

Switch-off limit (OFF)

Current output 0 or 4 ... 20 mA

(0/4 mA)

Beginning of sub range (from)

End of sub range(to)

Address (ADR)

Baud rate (kBaud)

Temperature display in °C or °F

(°C/°F)

Push-button for test

current

LEDs for clear mode

Measuring mode
display:

- mono mode

- ratio mode

- metal mode

Temperature or
parameter display
Setting keys

Targeting light on /
off

Interface

RS232 or RS485

Scale °C or °F:

The LED indicates the temperature scale in °C or °F.

Parameter

indicator:

LED’s indicate which pyrometer parameter is selected for reading or
changing.

Push button for
test current:

The test button activates a test current of 10 mA on the analog output,
independent if the instrument is adjusted to 0 ... 20 mA or 4 ... 20 mA. This
enables to test external indicators for correct scaling. The readings of the
internal indicator should correspond to the reading of the external
indicator. If both displays show different readings the external indicator
has a wrong temperature range or input current. This test current can be
switched off by pushing the test button again or any other setting key or
it is switched off automatically after 30 seconds and the instrument is

working in the measuring mode.

LED for clear

mode:

LED indicates if the maximum value storage is operating in automatic or

external clearing mode.

Temperature or
parameter

display:

In the measuring mode the display shows the actual temperature reading.
After pushing the parameter key the display indicates the actual value of

one selected parameter. Special indications: see 4.2.2.

Measuring mode
display:

LED 1 = mono mode
LED 1 and 2 = ratio mode

LED M = metal mode

Setting keys: PAR:

 :

With the PAR button all available parameters are displayed in the
following description. Pushing the button again changes the display to
the next parameter, after the last parameter it changes to the actual
temperature reading.

With the arrow keys and all parameter settings can be displayed. Pushing
the button longer changes the settings in fast mode (the keys and ENT are
blocked if the keyboard is locked via the interface commands or/and

during a measurement in combination with a PC and InfraWin).

ISR 12-LO • IGAR 12-LO Operating Manual Settings / Parameter Descriptions • 25

ENT:

If a parameter is changed with the arrow keys the new value must be
confirmed by pushing the ENT key. If it is not confirmed with ENT, the
instrument is still operating with the previous parameter value. If no key is
pressed for approx. 30 s the display changes to the temperature

indication.

Targeting light
on / off:

Pushing the PL key in measuring mode the laser targeting light is switched
on.

The IGAR 12-LO measures continuously also with switched on targeting
light and the display shows the actual temperature reading. As the laser
targeting light influences the measurement of the ISR 12-LO the last
measured value is hold in the analog output. The display shows during
this time the intensity of the relative signal. In mono mode the display
shows a blinking “8000”. The laser targeting light is switched off

automatically after approx. 2 min or after a further push of the PL key.

Serial interface:

Switch for selection of RS232 or RS485.

4.2.2 Special indications

Display

Description

7777

Warming-up time after switching on

8888

Measurement exceeds the end of sub range

0 ... 999
(Intensity „relative signal“)

Only type ISR 12-LO in ratio mode:
If the laser targeting light is switched on the converter shows
the intensity of the measuring signal in percent. No
measurement will be done, the analog output keeps the last

measurement value.

8000 Only model ISR 12-LO in mono mode:

Laser targeting light on, no measurements will be done (analog

output keeps the last measurement value).

4.3 Basic range

Basic range automatically displays the total range of the pyrometer and can not be changed.

4.4 Material

The Material setting allows you to store the names of different measuring objects with their
emissivity values and to recall them from the list. You can also add and change the materials
listing through the text file "mat.txt" (provided in the folder InfraWin in the standard
Documents and Settings path of Windows, normally C:\ Documents and Settings \ <user
name> \ InfraWin).

4.5 Temperature display in °C or °F

Choose whether the temperature should be displayed in °C (Celsius) or °F (Fahrenheit).

ISR 12-LO • IGAR 12-LO Operating Manual Settings / Parameter Descriptions • 26

4.6 Emissivity ε / emissivity slope K

Emissivity (ε) setting only in mono mode.
Emissivity slope setting (K = ε

1

/ ε2) only in ratio mode.

For a correct measurement it is necessary to adjust the emissivity. This
emissivity is the relationship between the emission of a real object and the
emission of a black body radiation source (this is an object which absorbs all
incoming rays and has an emissivity of 100%) at the same temperature.
Different materials have different emissivities ranging between 0% and 100% (settings at the
pyrometer between 0.1 to 1, equivalent to 10 to 100%). Additionally, the emissivity is
depending on the surface condition of the material, the spectral range of the pyrometer and
the measuring temperature. The emissivity setting of the pyrometer must be adjusted
accordingly. Typical emissivity values of various common materials for the two spectral ranges of
the instruments are listed below. The tolerance of the emissivity values for each material is
mainly dependent on the surface conditions. Rough surfaces have higher emissivities.

In ratio mode (2-color mode) the pyrometer is measuring simultaneously with
2 sensors in adjacent wavelengths. It calculates the temperature by ratioing
the radiation intensities of the two wavelengths. This ratio technique
eliminates a number of factors that degrade the accuracy of a conventional
single-color instrument e.g. measurement independent of emissivity in wide
areas, unaffected by dust in the field of view, unaffected by dirty viewing windows or lenses,
etc. In some cases, the emissivities of the two wavelengths can differ so that it is necessary to
correct the ratio of the two emissivities (ε

1

/ ε2) to get a correct temperature reading. This
correction can be done with the emissivity slope setting K. The K-factors of metals are normally
higher than 1. For a correct measuring result it is recommended to make a comparison test, e.g.
with a thermocouple probe. Then the K-factor must be corrected until the pyrometer shows the
same temperature value.

Emissivity values and emissivity slope values of various common materials are listed below:

Measuring object

Emissivity ε

(at 0.9 µm)

Emissivity ε

(at 1.6 µm)

Emissivity slope K

“Black body furnace“

1 1 1

Steel heavily scaled

0.93

0.85 to 0.9

1

Steel rolling skin

0.88

0.8 to 0.88

1.00 to 1.01

Steel, molten

0.3

0.2 to 0.25

Slag

0.85

0.8 to 0.85

1

Chromium, bright

0.28 to 0.32

0.25 to 0.3

Brass oxidized (tarnished)

0.65 to 0.75

0.6 to 0.7

Bronze, blank

0.03

0.03

Copper, oxidized

0.88

0.7 to 0.85

Zinc

0.58

0.45 to 0.55

Nickel

0.22

0.15 to 0.2

Gold, Silver, bright

0.02

0.02

Porcelain glazed

0.6

0.6

1

Porcelain rough

0.8 to 0.9

0.8 to 0.9

1

Graphite

0.8 to 0.92

0.8 to 0.9

1.01

Chamotte

0.45 to 0.6

0.45 to 0.6

1

Earthenware, glazed

0.86 to 0.9

0.8 to 0.9

1

Brick

0.85 to 0.9

0.8 to 0.9 1 Soot

0.95

0.95

1

Settings:

10%

.
.
.

100%

Settings:

0.8

.
.
.

1.2

ISR 12-LO • IGAR 12-LO Operating Manual Settings / Parameter Descriptions • 27

4.7 Response time / exposure time (t

90

)

The exposure time is the time interval when the measured temperature has
to be present after an abrupt change so that the output value of the
pyrometer reaches a given measurement value. The time taken is to reach
90% of the recorded temperature difference. In the “0.00” position, the
device operates using the time constant 2 ms.

The dynamic exposure time adjustment prolongs the exposure time at the
lower range limit.

4.8 Clear time of the maximum value storage (t

CL

)

If the maximum value storage is switched on always the highest last
temperature value will be displayed and stored. The storage has to be
cleared at regular intervals for exchanging by a new and actual value.

This feature is particularly useful when fluctuating object temperatures cause
the display or the analog outputs to change too rapidly, or the pyrometer is
not constantly viewing an object to be measured. In addition, it may also be
beneficial to periodically delete and reset the stored maximum values.

The following settings are possible:

Off:

At clear time “off“ the max. value storage is switched off and only
momentary values are measured.

0.01...25 s:

If any clear time between 0.01 s and 25 s is set, the maximum value is
estimated and held in double storage mode. After the entered time
the storage will be deleted.

Extern:

The external clearing can be activated and used within an own
software (see shapter 7, Data format UPP) or via an external contact
(for connection see 3.2, Pin assignment for the connector on the
bottom side of the pyrometer). In this case, the storage operates only
in single storage, because only a single deletion mechanism is used.

Auto:

The “auto” mode is used for discontinuous measuring tasks. For
example, objects are transported on a conveyer belt and pass the
measuring beam of the pyrometer only for a few seconds. Here the
maximum value for each object has to be indicated. In the “auto”
mode the maximum value is stored until a new hot object appears in
the measuring beam. The temperature which has to be recognized as
“hot“ is defined by the low limit of the temperature range. The stored
maximum value will be deleted when the temperature of the new hot
object exceeds the low limit of the temperature range or adjusted
temperature sub range by 1% or at least 2 °C.

Hold:

The function “hold” enables to freeze the current temperature reading
at any moment. For this an external push button or switch must be
connected (see 3.2.1, Connector pin J) which holds the temperature
reading as long as the contacts are closed.

Settings:

Min

0.00 s

0.01 s

0.05 s

.

.

.

10.00 s

Settings:

off

0.01 s

.
.
.

25 s

Extern

Auto

Hold

ISR 12-LO • IGAR 12-LO Operating Manual Settings / Parameter Descriptions • 28

Operation note: Dependent on the settings the maximum value storage either works in single

storage mode or in double storage mode:

Single storage: The single storage is used when you want to reset the stored value using an
external impulse via one contact closure from an external relay (i.e. between two measured
objects). The relay contact is connected directly to the pyrometer between pins J and K. This
mode allows a new value to be established, after each impulse from the reset signal.

Double storage: When entering the reset intervals via push buttons or PC interface the double
storage is automatically selected. This mode utilizes two memories in which the highest
measured value is held and is deleted alternately in the time interval set (clear time). The other
memory retains the maximum value throughout the next time interval. The disadvantages of
fluctuations in the display with the clock frequency are thereby eliminated.

Note: The maximum value storage follows the function of adjustment of exposure
time. This results in:

• Clear time ≤ the adjusted response time is useless.

• Clear times must be at least 3 times longer than the response time.

• Only maxima with full maximum value can be recorded, which appear at
least 3 times longer than the response time.

4.9 Operating mode

The series 12 pyrometers are designed for use in ratio mode. Additionally,
the pyrometers can be used in two other modes:

In the mono mode the pyrometer only, measures in one wavelength and the
ratio mode is off. In this case the operating mode is equivalent to a
conventional 1-color pyrometer (see 4.6, Emissivity).

The metal mode is a special mode which calculates the temperature combining the ratio and the
1-color signal with an algorithm. The metal mode can be used to determine the temperature of
metals and alloys with unknown emissivity ratio (K). It should be used only for a short time to
achieve a good approximation of the object temperature if the temperature reading in 2-color
or 1-color mode seems to be incorrect. After this the pyrometer must be switched back into
2-color mode and the temperature reading has to be corrected with the adjustment of the
emissivity slope K until the instrument shows the temperature determined in the metal mode. A

condition for the use of the metal mode are settings of

ε = 1 and K = 1.

Note: Metal mode can be affected by the setting of the switch-off level, see (4.10).

4.10 Switch-off level (OFF / %)

The switch-off level is a function to avoid measuring errors caused by too low
signals. Ratio pyrometers can measure temperatures correctly even with very
low signals, i.e. for example through a dirty viewing window or if dust exists
in the field of view or if the spot is not filled by the measuring object. If the
signal is too low for a correct measurement, the pyrometer interrupts the
measurement and displays 1° below of beginning of the temperature range. Depending of the
application the switch-off limit can be adjusted between 2 and 50%, ex works at delivery set to
10%.

Note: The smaller the value the higher the chance that daylight or reflections affect
a correct measurement.

Settings:

mono mode

ratio mode

metal mode

Settings:

2%

.
.
.

50%

ISR 12-LO • IGAR 12-LO Operating Manual Settings / Parameter Descriptions • 29

4.11 Analog Output

The analog output must be selected according to the signal input of the
connected instrument (controller, PLC, etc.).

4.12 Setting of subrange (from / to)

You can choose a subrange (minimum 51 °C) within the basic measuring range of the
pyrometer. This subrange corresponds to the analog output “from“ describes the beginning of
this measuring range, “to“ the end of the range.

Additionally, with the setting of a subrange it is possible to fulfill the requirements of the
“auto” clear mode of the maximum value storage (see 4.10).

4.13 Address

For the connecting of several pyrometers with RS485 with one serial interface
it is necessary to give each instrument an individual address for
communication. First it is necessary to connect each single instrument to give
it an address. After that all instruments can be connected and addressed
individually. If parameters may be changed simultaneously on all pyrometers, the global address
98 can be used. This allows you to program all pyrometers at the same time, regardless of the
addresses that have already been assigned. If the address of a pyrometer is unknown, it is
possible to communicate with it using the global address 99 (connect only one pyrometer).

Note: Only via own communication program with interface command (not
possible with InfraWin, because InfraWin automatically detects a connected
pyrometer): If parameters should be changed simultaneously on all pyrometers, the
global Address 98 can be used. This allows you to program all pyrometers at the
same time, regardless of the addresses that have already been assigned. If the address
of a pyrometer is unknown, it is possible to communicate with it using the global

Address 99 (connect only one pyrometer).

4.14 Baud rate (kBaud)

The transmission rate of the serial interface in Baud (Bd) is dependent on the
length of the cable. A standard cable length with RS232 for 19200 Bd is 7 m,
with RS485 2 km. The baud rate is reduced by 50% if the transmission
distance is doubled.

Settings:

0 ... 20 mA

4 ... 20 mA

Settings:

00

.
.
.

97

Settings:

2.4 kBd

.
.
.

115.2 kBd

ISR 12-LO • IGAR 12-LO Operating Manual Settings / Parameter Descriptions • 30

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ISR 12-LO • IGAR 12-LO Operating Manual Software InfraWin • 31

5 Software InfraWin

The operating and analyzing InfraWin software is included with delivery of the pyrometer. In
addition to allowing you to make parameter adjustments via PC, the InfraWin software also
provides temperature indication, data logging, and measurement analysis features.

A software description can be found in the program’s help menu. Click on the F1 button after
loading InfraWin or click on the ? in the menu bar.

The latest version is available for free as download from the homepage www.lumasenseinc.com

.

5.1 Connecting the pyrometer to a PC

The program InfraWin can operate up to two devices. Two devices using RS485 may be operated
simultaneously by the same interface, if two different addresses have been properly entered
(see section 4.13 Device Address for more information).

5.2 Installation

To install the InfraWin software, select setup.exe from the InfraWin-CD or from the downloaded
and unpacked zip file from the internet and then follow the installation instructions.

5.3 Program start

The first time you load InfraWin 5, you will be prompted to select a default language. The
InfraWin software is available in German, English, Spanish, French, Portuguese, and Chinese.

Once installed, click Language/Languages if you would like to select another language.

ISR 12-LO • IGAR 12-LO Operating Manual Software InfraWin • 32

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ISR 12-LO • IGAR 12-LO Operating Manual Maintenance • 33

6 Maintenance

6.1 Safety

Attention during pyrometer services: Should the pyrometer be integrated in a

running machine process the machine has to be switched off and secured against
restart before servicing the pyrometer.

6.2 Service

The pyrometer does not have any parts, which require regular service, only the lens has to be
kept clean. The lens can be cleaned with a soft cloth in combination with alcohol (do not use
acid solutions or dilution). In addition, standard cloths for cleaning glasses or photo objectives
can be used.

6.3 Changing of optics

The pyrometers are equipped ex works with a small or a large optical head. The optical heads
can be changed against each other. A recalibration of the pyrometer is not necessary.
Replacement can be necessary if the lens is scratched or the pyrometer will be used for other
measuring distances.

ISR 12-LO • IGAR 12-LO Operating Manual Maintenance • 34

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ISR 12-LO • IGAR 12-LO Operating Manual Data format UPP (Universal Pyrometer Protocol) • 35

7 Data format UPP (Universal Pyrometer

Protocol)

The data exchange occurs in ASCII format with the following transmission parameters:

The data format is: 8 data bits, 1 stop bit, even parity (8,1,e).

The device responds to the entry of a command with: output (e.g. the measuring value) + CR
(Carriage Re-turn, ASCII 13), to pure entry commands with "ok" + CR.

Every command starts with the 2-digit device address AA (e.g. "00"). This is followed by 2 small
command letters (e.g. "em" for level of emissivity ), finished with CR.

This is followed, if necessary for that command, by the ASCII parameter "X". If this parameter
"X" is omitted, then the device resets with the current parameter.

A “?“ after the small command letters answers with the respective settings (only at setting
commands, not at enquiry commands).

Example: Entry: “00em“ + <CR>

The emissivity setting (ε) of the device with the address 00 is returned

Answer: “0970“ + <CR> means Emissivity = 0.97 or 97.0%

Description

Command

Parameters

Reading temperature

value:

AAms

Output: XXXXX (dec., in 1/10 °C or °F)

in the selected measuring mode
(77770 = warm-up period of sensor or sensor
heating failed

88880 = temp.-overflow,

80000 = targeting light on (only ISR 12-LO))

Reading temperature
value repeated:

AAmsXXX

XXX = 001 ... 999 (XXX = number of measuring

values)

Reading measuring

values:

AAek

Output: XXXXXYYYYY (dec., in 1/10 °C or °F)

XXXXX = mono temperature;
YYYYY = ratio temperature
(77770 = warm-up period of sensor or sensor
heating failed
88880 = temp.-overflow,

80000 = targeting light on (only type ISR 12-LO))

Reading emissivity:

AAem

Output: XXXX (dec. 0010 ... 1000 in %)

Emissivity:

AAemXX

XX = (10 ... 99%), 00 = 100% (decimal)

Emissivity:

AAemXXXX

XXXX = (0010 ... 1000% decimal)

Emissivity slope:

AAevXXXX

XXXX = 0800 ... 1200 (equivalent to 0.8 ... 1.2)

Ratio part in
metal mode:

AAmvXX

XX = 01 ... 99%

Exposure time t90:

AAezX

X = 0 ... 6 (decimal)

0 = intrinsic time constant of the device
1 = 0.01 s 3 = 0.25 s 5 = 3.00 s

2 = 0.05 s 4 = 1.00 s 6 = 10.00 s

ISR 12-LO • IGAR 12-LO Operating Manual Data format UPP (Universal Pyrometer Protocol) • 36

Description

Command

Parameters

Clear times of

maximum value
storage:

AAlzX

X = 0 ... 8 (dec.) 0 = Maximum value storage off

1 = 0.01 s 4 = 1.00 s 7 = external deletion
2 = 0.05 s 5 = 5.00 s 8 = automatically
deletion

3 = 0.25 s 6 = 25.00 s 9 = hold

External deletion:

AAlx

Simulation of an external deletion contact

Operation mode:

AAkaX

X = 0 metal mode from channel 1 and 2

X = 1 mono mode

X = 2 ratio temperature

Switch-off limit:

AAawXX

XX = 02 ... 50%

Analog output:

AAasX

X = 0 or 1 0 = 0 to 20 mA 1 = 4 to 20 mA

Reading basic

temperature range:

AAmb

Output: XXXXYYYY (hex 8-digit, °C or °F)

XXXX = beginning of temperature range

YYYY = end of temperature range

Reading temperature
sub range:

AAme

same as mb

Setting of

temperature sub

range:

AAm1XXXXYYYY

XXXX (hex. 4-digit) beginning of temp. range

(°C or °F)

YYYY (hex. 4-digit) end of temp. range (°C or °F)

Address:

AAgaXX

XX = (00 ... 97)

00 ... 97 = regular device addresses
99 = global address with response
98 = global address without response (only setting

commands!)

Baud rate:

AAbrX

X = 0...6 or 8 (dec.)

1 = 2400 baud 4 = 19200 baud (7 is not allowed)
2 = 4800 baud 5 = 38400 baud 8 = 115200 baud

3 = 9600 baud 6 = 57600 baud

Changing °C / °F:

AAfhX

Output: X = 0: display in °C; X = 1: display in °F

Reading signal
strength:

AAtr

Output: XXXX, XXXX = 0000 ... 9999 in ‰
Warning level:

AAdwXX

XX = 00 ... 99% (2 digit, hex.)

Wait time:

AAtwXX

XX = 00 ... 99 (decimal)

Error status:

AAfs

Output: XX;

XX=00 … FF (00 = no error)

(01 … FF: error code for LumaSense service)

Internal temperature:

AAgt

Output: XXX (dec. 000 ... 099 °C or 032 ... 210 °F)

Max. internal
temperature:

AAtm

Output: XXX (dec. 000 ... 099 °C or 032 ... 210 °F)

Reading interface
type:

AAin

Output: X = 1 or 2; 1 = RS232, 2 = RS485

Laser targeting light:

AAlaX

X = 0 switch off laser targeting light

X = 1 switch on laser targeting light

Lock keyboard:

AAlkX

X = 0 ... 3

1 = lock lk1, removal with command lk0 or power
off-on
0 = removal of lock lk1
3 = continuous lock lk3, removal only with command
lk2

2 = removal of lock lk3

ISR 12-LO • IGAR 12-LO Operating Manual Data format UPP (Universal Pyrometer Protocol) • 37

Description

Command

Parameters

Reading parameters: AApa

Output decimal 11-digit:

Digit 1 und 2 (10...99 or 00): (emissivity)
Digit 3 (0 ... 6): t90 (exposure time)
Digit 4 (0 ... 8): tCL (clear time of max.
storage)
Digit 5 (0 ... 1): analog output
Digit 6

und 7: (00 ... 98): pyrometer’s

temperature
Digit 8 und 9 (00 ... 97): address
Digit 10 (0 ... 6 or 8): baud rate
Digit 11 (0): (0 or 1): keyboard active or
locked

Digit 12 ... 15 (0800 ... 1200): emissivity slope

Autoreset: AAre Activating auto-reset, initializes the pyrometer new

and resets the instrument to default settings

Reference number:

AAbn

Output: XXXXXX (hex 6-digit)

Serial number:

AAsn

Output: XXXXX (5-digit, decimal)

Device type /
software version:

AAve Output: XXYYZZ (6-digit, decimal)

XX = 63 (ISR 12-LO or IGAR 12-LO)
YY = month of software version

ZZ = year of software version

Software version
in detail:

AAvs tt.mm.yy XX.YY

tt = day; mm = month; yy = year; XX.YY = software

version

Device type: AAna Output: “ISR 12-LO“ or “IGAR 12-LO

(16 ASCII-characters)

Note: The letter “l” means the lower case letter of “L”.

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ISR 12-LO • IGAR 12-LO Operating Manual Reference numbers • 39

8 Reference numbers

8.1 Reference numbers instrument

Ordering note: The pyrometers ISR 12-LO and IGAR 12-LO can be configured with different

optical fiber lengths and optical heads as well as with variious optional extras. To determine the
part number and the price for the desired combination please contact LumaSense or your
LumaSense sales representative.

Scope of delivery:

Converter, optical fiber and optical head as per configuration, works certificate, PC software
InfraWin, and user manual.

Note: The connection cable is not included with the instrument and has to be ordered
separately (see section 8, Reference numbers).

Ordering details:

In order to configure your pyrometer as fast as possible, please provide the following data:

• Instrument with basic temperture range

• Desired length of optical fiber

• Desired optical head (I or II) and the desired measuring distance

• Desired add-on options (e.g. vacuum feedthrough or continuous casting system SG-LO)

8.2 Reference numbers accessories

3 820 330 Connection cable, length 5 m, straight connector
3 820 500 Connection cable, length 10 m, straight connector
3 820 510 Connection cable, length 15 m, straight connector
3 820 810 Connection cable, length 20 m, straight connector
3 820 820 Connection cable, length 25 m, straight connector
3 820 520 Connection cable, length 30 m, straight connector
3 820 740 Connection cable, length 5 m, straight connector, temperature resistant

up to 200 °C

3 852 290 Power supply NG DC for DIN rail mounting; 100 to 240 V AC ⇒ 24 V DC, 1 A
3 852 550 Power supply NG 2D for DIN rail mounting; 85 to 265 V AC ⇒ 24 V DC, 600 mA

with 2 settable limit switches
3 852 440 Protocol transducer RS485/RS232 (switch.) <-> Profbus-DP for 1 device
3 852 460 Protocol transducer RS485 <-> Profbus DP for 32 devices
3 852 620 Protocol converter UPP RS485 or RS232 <-> ProfNet, for 1 pyrometer
3 852 630 Protocol converter UPP RS485 <-> ProfNet, for max. 32 pyrometers
3 890 650 DA 4000: LED display, 2 wire power supply, with 2 limit contacts, 230 V AC
3 891 220 DA 4000: LED display, 2 wire power supply, with 2 limit contacts, 115 V AC
3 890 560 LED digital display DA 6000-N: with possibility for pyrometer parameter settings

for digital IMPAC pyrometers; RS232 interface
3 890 570 LED digital display DA 6000-N with RS485 interface
3 890 520 LED digital display DA 6000; DA 6000-N additional with 2 limit switches and

analog input and output, RS232 interface
3 890 530 LED digital display DA 6000 with RS485 interface

ISR 12-LO • IGAR 12-LO Operating Manual Reference numbers • 40

3 890 150 DA 6000-T, digital display, for measurement of the cool down time t8_5 from

800 ºC to 500 ºC (for welding processes)
3 826 510 PI 6000: PID programmable controller, very fast, for digital IMPAC pyrometers
3 838 280 Laser protection filter for fiber vario-optics (built in), 920...1100 nm, for IGAR 12-LO
3 834 370 Mounting support for optical head I (fixed)
3 834 380 Mounting support for optical head I (adjustable)
3 834 390 Ball and socket mounting with clamp for optical head I or II
3 834 230 Adjustable mounting support for optical head II
3 835 170 Air purge unit, stainless steel, for optical head I
3 835 180 Air purge unit, stainless steel, for optical head II
3 835 240 Air purge unit with 90°-mirror for optical head II

Exchangeable optical head, type Ι:

3 873 320 Measuring distance 120 mm
3 873 340 Measuring distance 260 mm
3 873 350 Measuring distance 700 mm

Exchangeable optical head, type II, fixed adjusted

3 873 420 Measuring distance 87mm
3 873 440 Measuring distance 200mm
3 873 460 Measuring distance 600mm
3 873 470 Measuring distance 4500mm

Exchangeable optical head, type ΙΙ, focusable:

3 838 210 Measuring distance 88 to 110 mm
3 838 220 Measuring distance 95 to 129 mm
3 838 230 Measuring distance 105 to 161 mm
3 838 240 Measuring distance 200 to 346 mm
3 838 250 Measuring distance 247 to 606 mm
3 838 260 Measuring distance 340 to 4500 mm

3 838 048 Replacement fiber red, 2,5 m
3 838 049 Replacement fiber red, 5 m
3 838 051 Replacement fiber red, 6 m
3 838 052 Replacement fiber red, 7,5 m
3 838 053 Replacement fiber red, 10 m
3 838 054 Replacement fiber red, 11 m
3 838 055 Replacement fiber red, 12,5 m
3 838 056 Replacement fiber red, 15 m
3 838 057 Replacement fiber red, 16 m
3 838 061 Replacement fiber red, 17,5 m
3 838 058 Replacement fiber red, 20 m
3 838 059 Replacement fiber red, 21 m
3 838 063 Replacement fiber red, 30 m
3 838 071 Replacement fiber blue, 2,5 m
3 838 073 Replacement fiber blue, 5 m
3 838 074 Replacement fiber blue, 6 m
3 838 075 Replacement fiber blue, 7,5 m
3 838 076 Replacement fiber blue, 10 m
3 838 077 Replacement fiber blue, 11 m
3 838 078 Replacement fiber blue, 12,5 m
3 838 079 Replacement fiber blue, 15 m
3 838 081 Replacement fiber blue, 16 m
3 838 082 Replacement fiber blue, 20 m

ISR 12-LO • IGAR 12-LO Operating Manual Troubleshooting • 41

9 Troubleshooting

Before sending the pyrometer for repair, try to find the error and to solve the problem with the
help of the following list.

Temperature indication too low

• Incorrect alignment of the pyrometer to the object.

⇒ New correct alignment to achieve the max. temperature signal (see 3.6).

• Incorrect focusing of the optics.

⇒ Focus correctly to the measuring distance if necessary change lens (see 3.5).

• Emissivity slope set too high.

⇒ Set lower correct emissivity slope corresponding to the material (see 4.6).

Temperature indication too high

• Emissivity slope set too low.

⇒ Set lower correct emissivity slope corresponding to the material (see 4.6).

• The measurement is influenced by reflections of hot machine parts.

⇒ Use mechanical construction to avoid the influence of the interfering radiation

(sighting tube).

Measuring errors

• Indicated temperature is immediately 1 °C below beginning of temperature range.

Contamination of the lens or broken fiber.

⇒ Clean lens or control the fiber. Recommendation: use of air purge (see 2.6).

• Indicated temperature is immediately 1 °C below beginning of temperature range, although

the air purge unit is used. Probably compressed air is not clean or air failed.

⇒ Clean the lens and use clean, dry and oil free compressed air.

• HF-interferences.

⇒ Correct the connection of the cable shield (see 4).

ISR 12-LO • IGAR 12-LO Operating Manual Troubleshooting • 42

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ISR 12-LO • IGAR 12-LO Operating Manual Index • 43

Index

A

Accessories 12
Address 29
Ambient temperature 19
Analog output 29
Appropriate use 9

B

Basic range 25

C

Changing of optics 33
Clear mode 24
Clear time of the maximum / minimum

value storage 27
Connection cable 9, 39
Controls and Connections 15

D

Data format UPP 35
Disposal 8

E

Electrical Installation 15
Emissivity 26

F

Factory settings 23
Fiber optic 19

G

General 5

I

Installation, electrical 15
Interface 25
IR calculator 21

L

Language 31
Laser targeting light 25
Legend 5
Liability 6

M

Maintenance 33
Material 25
Measuring mode 24
Mechanical Installation 18

O

Optical head 20

P

Packaging 8
Parameter descriptions 23
Parameter display 24
Parameter indicator 24
Pin assignment of the male socket 15

R

Reference numbers 39
Repair 7
Response time / exposure time 27

S

Scale °C or °F 24
Scope of delivery 9
Serial number 19
Service Request 7
Setting keys 24
Settings 23
Software InfraWin 31
Spot size data 20
Storage 8
Subrange 29
Support 7

ISR 12-LO • IGAR 12-LO Operating Manual Index • 44

T

Technical data 9
Temperature display 24
Temperature display in °C or °F 25
Test current button 24
Transport, packaging, storage 8
Trouble shooting 41

U

Unpacking 7
UPP data format 35

W

Warranty 6