RayTek TX User manual

TX
Infrared Sensor
Operating Instructions
Rev. O 06/2011
50501

Contacts
Raytek Corporation
Worldwide Headquarters
Santa Cruz, CA USA
Tel: [phone]
(USA and Canada only)
[phone]
[email protected]
European Headquarters
Berlin, Germany
Tel: [phone]
[email protected]
France
[email protected]
United Kingdom
[email protected]
Fluke Service Center
Beijing, China
Tel: [phone]
[email protected]
Internet: http://www.raytek.com/
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© Raytek Corporation.
Raytek and the Raytek Logo are registered trademarks of Raytek Corporation.
All rights reserved. Specifications subject to change without notice.

WARRANTY
The manufacturer warrants this product to be free from defects in material and workmanship under normal use
and service for a period of two years from date of purchase except as hereinafter provided. This warranty extends
only to the original purchaser. This warranty shall not apply to fuses or batteries. Factory calibration is warranted
for a period of one year. The warranty shall not apply to any product which has been subject to misuse, neglect,
accident, or abnormal conditions of operation or storage. Should the manufacturer be unable to repair or replace
the product within a reasonable amount of time, purchaser’s exclusive remedy shall be a refund of the purchase
price upon return of the product.
In the event of failure of a product covered by this warranty, 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 the 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)

Content
1 SAFETY INSTRUCTIONS..............................................................................................................................7
2 TECHNICAL DATA.........................................................................................................................................8
2.1 MODELS AND PARAMETERS .........................................................................................................................8
2.2 OPTICAL DIAGRAMS.....................................................................................................................................9
2.3 SCOPE OF DELIVERY....................................................................................................................................11
3 BASICS .............................................................................................................................................................12
3.1 MEASUREMENT OF INFRARED TEMPERATURE...........................................................................................12
3.2 DISTANCE AND SPOT SIZE ..........................................................................................................................12
3.3AMBIENT TEMPERATURE............................................................................................................................12
3.4 ATMOSPHERIC QUALITY.............................................................................................................................13
3.5 ELECTRICAL INTERFERENCE.......................................................................................................................13
3.6 EMISSIVITY OF TARGET OBJECT ..................................................................................................................13
4 INSTALLATION ............................................................................................................................................14
4.1 WIRE PARAMETERS FOR CURRENT LOOP ..................................................................................................14
4.2 DIMENSIONS OF SENSOR.............................................................................................................................15
4.2.1 Fixed Brackets .....................................................................................................................................15
4.3 CONNECTING THE SIGNAL LINE ................................................................................................................15
4.4 BASIC MODEL .............................................................................................................................................17
4.4.1 Installation with a Controller..............................................................................................................17
4.5 SMART MODEL............................................................................................................................................17
4.5.1 HART Protocol ...................................................................................................................................17
4.5.2 HART/RS232 Adapter........................................................................................................................18
4.5.3 Installation of Smart Model ................................................................................................................18
4.5.4 Address Assignment for Multiple Sensors .........................................................................................19
4.5.5 Installation of Multiple Sensors (digital, address mode).....................................................................20
4.5.6 Installation of Multiple Sensors (digital and analog, address mode) ..................................................21
4.5.7 Installation of Multiple Sensors (digital and analog, tag mode) .........................................................21
4.5.8 Alarm Output .....................................................................................................................................22
5 OPTIONS .........................................................................................................................................................23
5.1 AIR/WATER-COOLED HOUSING ................................................................................................................23
5.1.1 Connecting ..........................................................................................................................................24
5.1.2 Avoidance of Condensation .................................................................................................................25
6 ACCESSORIES................................................................................................................................................26
6.1 OVERVIEW...................................................................................................................................................26
6.2 ADJUSTABLE BRACKET ...............................................................................................................................27
6.3 AIR PURGE COLLAR....................................................................................................................................27
6.4 RIGHT ANGLE MIRROR...............................................................................................................................27
6.5 SIGHTING VIEWER ......................................................................................................................................28
6.6 ADJUSTABLE PIPE ADAPTER.......................................................................................................................28
6.7 THERMOJACKET..........................................................................................................................................29
6.8 INDUSTRIAL POWER SUPPLY ......................................................................................................................30
6.9 PROTECTIVE WINDOW................................................................................................................................31
7 SOFTWARE .....................................................................................................................................................32

7.1 REQUIREMENTS .......................................................................................................................................... 32
7.2 INSTALLATION AND START........................................................................................................................ 32
7.3 SENSOR SETUP............................................................................................................................................ 33
8 MAINTENANCE............................................................................................................................................ 34
8.1 TROUBLESHOOTING MINOR PROBLEMS .................................................................................................... 34
8.2 AUTOMATIC ERROR INDICATION .............................................................................................................. 34
8.3 CLEANING THE LENS ................................................................................................................................. 35
8.4 REPLACING A PROTECTIVE WINDOW........................................................................................................ 35
8.4.1 Models produced after May 1999 ....................................................................................................... 35
8.4.2 Models produced before May 1999 ..................................................................................................... 36
9 APPENDIX....................................................................................................................................................... 37
9.1 DETERMINATION OF EMISSIVITY................................................................................................................ 37
9.2 TYPICAL EMISSIVITY VALUES..................................................................................................................... 37
9.3 DISPLAY MONITOR..................................................................................................................................... 41
9.3.1 Installation with the Sensor................................................................................................................ 41
9.4 INTRINSIC SAFETY ...................................................................................................................................... 42
NOTES

Safety Instructions
TX Rev. O 06/2011 7
1
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 can only be operated by trained personnel in accordance with these instructions and local
safety regulations.
Acceptable Operation
This instrument is intended only for the measurement of temperature. The instrument is appropriate
for continuous use. 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 operation safety and functionality of the instrument.
Instrument Disposal
Disposal of old instruments should be handled according to professional and
environmental regulations as electronic waste.
Operating Instructions
The following symbols are used to highlight essential safety information in the operation instructions:
Helpful information regarding the optimal use of the instrument.
Warnings concerning operation to avoid instrument damage and personal injury.
The instrument is 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.
Incorrect use of 110 / 230 V electrical systems can result in electrical hazards and personal
injury. All instrument parts supplied with electricity must be covered to prevent physical
contact and other hazards at all times.

Technical Data
8 Rev. O 06/2011 TX
2
2.1 Models and Parameters
In general, there are two models available. The basic model (TXC, for °C, and TXF, for °F) and the Smart model (TXS).
The model descriptor is followed by the description for the optical characteristic, see following page):
Optical characteristic LTPSF LTSF MTSF G5SF (Glass) P7SF (Plastics) HTSF
Temperature range (°C) - 18 to 500 - 18 to 500 200 to 1000 250 to 1650 10 to 360 500 to 2000
Temperature range (°F) 0 to 1000 0 to 1000 400 to 1800 500 to 3000 50 to 650 950 to 3600
Optical resolution (90%) 15 : 1 33 : 1 33 : 1 33 : 1 33 : 1 60 : 1
Spectral response (µm) 8 to 14 8 to 14 3.9 5.0 7.9 2.2
Close focus CF CF1, CF2 CF1, CF2 CF1, CF2
Thermal Parameters
Accuracy ± 1 % of reading or ± 1.4°C (2.5°F), whichever is greater
(at 23°C ± 5°C (73°F ± 9°F) ambient temperature)
Repeatability ± 0.5 % of reading or ± 0.7°C, whichever is greater
Detector Micromachined Thermopile
Response time (95 %) 165 ms (100 ms HT models)
Temperature resolution (NET) 0.1 K (LT models), 1K (all other models)
Emissivity 0.10 to 1.00 (all models)
Electrical Parameters
Output 4 to 20 mA
Maximum loop impedance 750 Ohm
Alarm 24 V / 150 mA (only Smart models)
Signal processing
Smart models °C/°F, Averaging, Peak/Valley Hold,
Emissivity, internal housing temperature, external ambient temperature
Basic model Emissivity
Power 24 VDC ± 10 %, 100 mA, if HART communication is required,
otherwise 12 to 24 VDC +20 %
General Parameters
Environmental rating IP 65, IEC 529, NEMA 4
Ambient operating range without cooling 0 to 70°C (32 to 160°F)
with air cooling max. 120°C (250°F)
with water cooling max. 175°C (350°F)
with ThermoJacket max. 315°C (600°F)
Storage temperature - 18°C to 85°C (0 to 185°F)
Relative Humidity 10% to 95% non-condensing
Vibration IEC 68-2-6 (MIL STD 810D), 3 axis, 11 to 200 Hz, 3 G
Shock IEC 68-2-27 (MIL STD 810D), 3 axis, 11 ms, 50 G
Dimensions / Weight Sensor L: 187 mm; Ø: 42 mm / 330 g (Length 7.36 inches, dia 1.65 inches)
with water cooling L: 187 mm; Ø: 60 mm / 595 g (Length 7.36 inches, dia 2.36 inches)

Technical Data
TX Rev. O 06/2011 9
2.2 Optical Diagrams
The optical diagrams indicate the target spot diameter at any given distance between the target object
and the sensing head.
All target spot sizes indicated in the optical diagrams are based on 90% energy.
Figure 1: How to read the optical diagrams
Target Spot Diameter
(S) and Measuring
Distance (D) in Close
Focus in inches
Target Spot Diameter S (in)
Distance D (in)
Target Spot Diameter
(S) and Measuring
Distance (D) in Close
Focus in mm
Target Spot Diameter S (mm)
Distance D (mm)
Distance between Sensor and Object [in]
Distance between Sensor and Object [mm]
Close Focus D : S = Proportion between Distance (D) to Target Spot
and Target Spot Diameter (S) in Close Focus
Far Field D : S = Proportion with Distances 10 times greater than the
Close Focus Distance
Calculating the Target Spot Size
To calculate the target spot size from two known points within an
optical diagram the following formula can be used:
Sx= unknown diameter of target spot
Sn= smallest known diameter of target spot
Sf= greatest known diameter of target spot
Dx= distance to unknown target spot
Dn= distance to smaller known target spot
Df= distance to greater known target spot

Technical Data
10 Rev. O 06/2011 TX
Plastic Lens, Standard Focus SF
Plastic Lens, Close Focus CF
Low and Medium Temperature Ranges,
G5 (Glass), P7 (Plastic), Standard Focus SF
Low and Medium Temperature Ranges,
High Resolution, Close Focus CF1
Low and Medium Temperature Ranges,
High Resolution, Close Focus CF2
High Temperature, Standard Focus SF
High Temperature, Close Focus CF1
High Temperature, Close Focus CF2
Figure 2: Optical Diagrams
LTCF2, MTCF2
LTSF, MTSF,
G5SF, P7SF
LTPSF
LTPCF1
LTCF1, MTCF1
HTSF
HTCF2
HTCF1
* Focus Point D:S = 15:1 Far Field D:S = 14:1
Distance D Sensor to Object [in]
Distance D Sensor to Object [mm]
Spot Dia. [mm]
Spot Dia. [in]
* Focus Point D:S = 7:1 Far Field D:S = 4:1
Distance D Sensor to Object [in]
Distance D Sensor to Object [mm]
Spot Dia. [mm]
Spot Dia. [in]
* Focus Point D:S = 33:1 Far Field D:S = 30:1
Distance D Sensor to Object [in]
Distance D Sensor to Object [mm]
Spot Dia. [mm]
Spot Dia. [in]
* Focus Point D:S = 30:1 Far Field D:S = 5:1
Distance D Sensor to Object [in]
Distance D Sensor to Object [mm]
Spot Dia. [mm]
Spot Dia. [in]
* Focus Point D:S = 32:1 Far Field D:S = 10:1
Distance D Sensor to Object [in]
Distance D Sensor to Object [mm]
Spot Dia. [mm]
Spot Dia. [in]
* Focus Point D:S = 60:1 Far Field D:S = 42:1
Distance D Sensor to Object [in]
Distance D Sensor to Object [mm]
Spot Dia. [mm]
Spot Dia. [in]
* Focus Point D:S = 60:1 Far Field D:S = 7:1
Distance D Sensor to Object [in]
Distance D Sensor to Object [mm]
Spot Dia. [mm]
Spot Dia. [in]
* Focus Point D:S = 60:1 Far Field D:S = 14:1
Distance D Sensor to Object [in]
Distance D Sensor to Object [mm]
Spot Dia. [mm]
Spot Dia. [in]

Technical Data
TX Rev. O 06/2011 11
2.3 Scope of Delivery
All models are provided with:
operator´s manual
a fixed bracket
mounting nut
models have 4 to 20 mA output

Basics
12 Rev. O 06/2011 TX
3
3.1 Measurement of Infrared Temperature
Everything emits an amount of infrared radiation according to its surface temperature. The intensity
of the 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. It is referred to as ”emissivity value”, see
appendix see section 9.2 Typical Emissivity Values, Seite 37.
Infrared thermometers are optical-electronic sensors. These sensors are able to detect ”radiation of
heat”. 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 parameter. The connected electronics generate
electrical signals for further analysis. 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 in the absence of contact.
Consequently, surface temperatures of moving or hard to reach objects can easily be measured.
3.2 Distance and Spot Size
The desired spot size on the target will determine the maximum measurement distance and the
necessary focus length of the optical module. To avoid erroneous readings the target spot size must
contain 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 focus
models and their parameters see Figure 2: Optical Diagrams on page 10.
Figure 3: Proper Sensor Placement
3.3 Ambient Temperature
The sensing head is designed for measurements in ambient temperatures between 0°C and 70°C (32 to
160°F). In ambient conditions above 70°C (160°F), a water or air cooled housing is available to extend
the operating range to 120°C (250°F) with air cooling and to 175°C (350°F) with water cooling. When
using the water cooled housing, it is strongly recommended to use the supplied air purge collar to
avoid condensation on the lens. In ambient conditions up to 315°C (600°F), the ThermoJacket housing
should be used.
Target greater than spot size
Target greater equal to spot size
Target smaller than spot size
Best
Good
Incorrect
Background

Basics
TX Rev. O 06/2011 13
3.4 Atmospheric Quality
In order to prevent damage to the lens and erroneous readings, the lens should always be protected
from dust, smoke, fumes, and other contaminants. For this purpose an air purge collar is available.
You should only use oil free, clean “instrument“ air.
3.5 Electrical Interference
To minimize electrical or electromagnetic interference, follow these precautions:
Mount the sensor as far away as possible from possible sources of interference such as
motorized equipment producing large step load changes.
Ensure a fully insulated installation of the sensor (Avoid ground loops!).
Make sure the shield wire in the sensor cable is earth grounded at one location.
3.6 Emissivity of Target Object
Determine the emissivity of the target object as described in appendix 9.1 Determination of Emissivity
on page 37. If emissivity is low, measured results could be falsified by interfering infrared radiation
from background objects (such as heating systems, flames, fireclay bricks, etc. close beside or behind
the target object). This type of problem can occur when measuring reflecting surfaces and very thin
materials such as plastic films and glass.
This measuring error when measuring objects with low emissivity can be reduced to a minimum if
particular care is taken during installation, and the sensing head is shielded from these reflecting
radiation sources.

Installation
14 Rev. O 06/2011 TX
4
The infrared sensor provides a standard two-wire current loop output and has been designed for use
in harsh industrial environments. The Smart model allows the remote programming of the
temperature range, alarm values and other functions.
4.1 Wire Parameters for Current Loop
You should use shielded twisted pairs or multiple twisted pairs with a joint shield.
Line length
The maximum line length of one two-wire line per loop is dependent on the loop resistance (R), the
capacitance per length unit (C), and the capacitance of the sensor CS(5000 pF). It is calculated as
follows:
C
10000C
CR 1065
lS
6
For simplifying the formula use, the parameters must be provided as “naked values” (in the given
dimension)!
Typical values for wire cross sections (copper)
up to 250 m line length: 0.2 mm2cross section AWG24
up to 650 m line length: 0.5 mm2cross section AWG20
up to 1500 m multiple wire line lengths: 1.5 mm2cross section
up to 3000 m single wire line lengths: 2.5 mm2cross section
l … in meter
R … in Ohm
C … in pF / m
CS…in pF

Installation
TX Rev. O 06/2011 15
4.2 Dimensions of Sensor
All sensors are supplied with a fixed bracket and mounting nut. Alternatively, the sensor may also be
mounted using customer-supplied accessories. A pipe adapter and other accessories may also be used
(see section 6.1 Overview on page 26).
All sensors and accessories are supplied with 1.5“ 20 UN 2 threads!
Figure 4: Dimensions of the Sensor
4.2.1 Fixed Brackets
Figure 5: Dimensions (left), sensor delivered with fixed bracket XXXTXXACFB (right)
4.3 Connecting the Signal Line
Before connecting the cable to the sensor (standard and Smart models) you should unscrew the cap
from the back of the sensor. Proceed as follows:
Protective Window

Installation
16 Rev. O 06/2011 TX
1.) Prepare the cable, remove about 6cm (2.36 in) of the
insulation. Shorten the shield to about 1cm (0.4 in). Tin-
coat the connecting leads.
2.) Unscrew the end-cap until it can be pulled away
from the sensor body.
3.) Open the PG threaded cable gland.
4.) The cable gland consists of a PG nut,
a plastics part and a metal cone ring.
5.) Feed the prepared cable through the components of
the cable gland.
6.) Make sure to have a proper contact between the
braided shield and the metal cone ring.
7.) Place the PG screwed cable gland back into the
outer cap. Tighten the PG nut firmly.
8.) Connect the signal wires to the screw terminals.
9.) Screw the end-cap firmly onto the sensor until it is tight (flush with the sensor body).
IMPORTANT: Neither the end-cap nor the cable gland should have any play after tightening.
The screwed cable gland described above is not a strain relief! Consequently, the cable
must be clamped accordingly during the installation. The outside diameter of the
connecting cables (round cable) should lie between 4 to 6 mm (about 0.2 inches). Note
that it might be necessary to additionally seal the cable entry to allow IP65 with smaller
cables!

Installation
TX Rev. O 06/2011 17
4.4 Basic Model
The standard model is available for °C or °F. It
provides a 2 pin screw-jumper terminal for
connecting the 4 to 20 mA current loop. The polarity
is indicated on the panel.
Above the screw-jumper terminal there are two
rotary switches for emissivity setting. Emissivity is
preset at the factory at 0.95 (see figure). The
appendix lists typical emissivity values for common
materials, see appendix see section 9.2 Typical
Emissivity Values, Seite 37.
4.4.1 Installation with a Controller
Figure 7: Typical installation of basic model
4.5 Smart Model
The Smart model has a 3 pin screw-jumper terminal
for connecting the 4 to 20 mA current loop and the
alarm output. The terminal assignment is marked on
the panel. To allow clip leads from a HART adapter
to attach directly to the sensor for setting sensor
parameters, raise the removable terminal strip about
4 mm (0.2 inches) from the rear panel board and
connect across the exposed (+) and (-) pins. For
example, via line terminals, a lap-top with a HART
adapter can be used for programming the sensor.
4.5.1 HART Protocol
Originally, transmission of information was in one direction only, from sensing head to process
control. The parameters monitored for the production of a product were not changed. In order to use
the same technological equipment to manufacture a multitude of differing products, it must be
possible to quickly alter many process parameters. This has an effect on the sensing head. Measuring
range, accuracy and alarm values must be redefined. It would be extremely inconvenient if it were
necessary to reprogram the sensing head at the unit every time. The HART protocol arose from this
requirement. It allows the application of ”intelligent” sensors. The sensing heads can be programmed
from the control room. This means that information is transmitted in two directions. The sensing head
provides analog measured values to the control room via the 4 to 20 mA current loop. The sensing
head can be reprogrammed from the control room by means of bi-directional transmission of digital
signals. The superposition of analog and digital signals is described by the HART protocol. Sensors
Figure 8: Back panel of basic model
Figure 6: Back panel of basic model
Controller
Shield
Basic model

Installation
18 Rev. O 06/2011 TX
which are programmable in this way are called SMART sensors. Apart from the Smart model, a
HART/RS232 adapter is also available. This adapter allows programming of infrared sensing heads
using a computer with an RS232 interface.
4.5.2 HART/RS232 Adapter
The adapter (XXXTXACRCK) allows both remote
setting and signal processing of one or more sensors
in a 4 to 20 mA current loop. A software suitable for
a Windows®PC are supplied together with the
adapter. The adapter has a 25-pin terminal connector
for connecting to an RS232 interface. Screw terminals
are provided for connecting the 4 to 20 mA current
loop, terminal 4 (S2) and terminal 5 (S1).
Terminal 6 is connected internally to
computer chassis ground!
4.5.3 Installation of Smart Model
Figure 10: Typical installation of Smart model using the external resistor
Figure 11: Typical installation of Smart model using the internal resistor
Figure 9: HART/RS232 adapter
Controller, Display, or just nothing
within the current loop.
Computer
COM-Port
Controller, Display, or just nothing
within the current loop.
Computer
COM-Port

Installation
TX Rev. O 06/2011 19
4.5.4 Address Assignment for Multiple Sensors
The sensing heads are factory-programmed with ”Polling Address 0”!
When installing a number of sensors, note that each sensing head must first be assigned a separate
polling (1 to 15). To do this, use the software supplied with the Smart model, and the HART/RS232
adapter:
Install the software, see software manual.
Connect the HART/RS232 adapter to the RS232 interface of your computer.
Connect the Smart model which is to be programmed to the adapter. Use either the installation
with the external resistor or the alternative with the internal resistor.
For configuring the sensor, go to the <Sensor> <Sensor Setup> menu in the software.
Figure 12: Address assignment with external (left) and internal (right) resistor
Sensor

Installation
20 Rev. O 06/2011 TX
4.5.5 Installation of Multiple Sensors (digital, address mode)
Maximum 15 sensors can be used. The polling address must always be >0.
Communication is purely digital, no analog current output is provided
Set each sensor failsafe mode to “minimum”
Figure 13: All sensors in digital communication using the external resistor
Figure 14: Multiple sensors using the internal resistor
The sensing heads are factory-programmed with ”Polling Address 0”!
When installing a number of sensors, note that each sensing head must first be assigned a separate
polling address (1 to 15), section 4.5.4 Address Assignment for Multiple Sensors on page 19).
POWER SUPPLY
Sensors
Voltage [V]
Op. Current [mA]
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
24
24
24
24
24
24
24
24
24
24
24
24
28
28
28
4
8
12
16
20
24
28
32
36
40
44
48
52
56
60
Monitor
HART/RS232
Adapter
Shield (6)
Sensor1
Sensor2
Sensor...
!