Ametek R4 System 4 User manual

R4 Low Temperature Thermometer
User Guide
Issue 3
28 April 2015
Publication Nº 807382
Language: English
Copyright © 2003 - 2015 Land Instruments International

Health and Safety Information
Read all of the instructions in this booklet - including all the WARNINGS and CAUTIONS
- before using this product. If there is any instruction which you do not understand.
DO NOT USE THE PRODUCT.
Safety Signs
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or
personal injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, could result in minor or
moderate injury to the user or users, or result in damage to the product or to property.
NOTE
Indicates a potentially hazardous situation which, if not avoided, could result in damage or the loss of
data.
Signs and Symbols used on equipment and Documentation
Caution, risk of electric shock.
Caution, attention to possibility of risk of damage to the product, process or surroundings.
Refer to instruction manual.
Caution, hot surface.
Protective Conductor Terminal.
Observe precautions for handling electrostatic discharge sensitive devices.
Equipment Operation
Use of this instrument in a manner not specied by Land Instruments International may be hazardous.
Read and understand the user documentation supplied before installing and operating the equipment.
The safety of any system incorporating this equipment is the responsibility of the assembler.
Protective Clothing, Face and Eye Protection
It is possible that this equipment is to be installed on, or near to, machinery or equipment operating at
high temperatures and high pressures. Suitable protective clothing, along with face and eye protection
must be worn. Refer to the health and safety guidelines for the machinery/equipment before installing
this product. If in doubt, contact Land Instruments International.
Electrical Power Supply
Before working on the electrical connections, all of the electrical power lines to the equipment must
be isolated. All the electrical cables and signal cables must be connected exactly as indicated in these
operating instructions. If in doubt, contact Land Instruments International.
Storage
The instrument should be stored in its packaging, in a dry sheltered area.
Unpacking
Check all packages for external signs of damage. Check the contents against the packing note.
Lifting Instructions
Where items are too heavy to be lifted manually, use suitably rated lifting equipment. Refer to the
Technical Specication for weights. All lifting should be done as stated in local regulations.
IMPORTANT INFORMATION - PLEASE READ

Health and Safety Information
Read all of the instructions in this booklet - including all the WARNINGS and CAUTIONS
- before using this product. If there is any instruction which you do not understand.
DO NOT USE THE PRODUCT.
Safety Signs
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or
personal injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, could result in minor or
moderate injury to the user or users, or result in damage to the product or to property.
NOTE
Indicates a potentially hazardous situation which, if not avoided, could result in damage or the loss of
data.
Signs and Symbols used on equipment and Documentation
Caution, risk of electric shock.
Caution, attention to possibility of risk of damage to the product, process or surroundings.
Refer to instruction manual.
Caution, hot surface.
Protective Conductor Terminal.
Observe precautions for handling electrostatic discharge sensitive devices.
Equipment Operation
Use of this instrument in a manner not specied by Land Instruments International may be hazardous.
Read and understand the user documentation supplied before installing and operating the equipment.
The safety of any system incorporating this equipment is the responsibility of the assembler.
Protective Clothing, Face and Eye Protection
It is possible that this equipment is to be installed on, or near to, machinery or equipment operating at
high temperatures and high pressures. Suitable protective clothing, along with face and eye protection
must be worn. Refer to the health and safety guidelines for the machinery/equipment before installing
this product. If in doubt, contact Land Instruments International.
Electrical Power Supply
Before working on the electrical connections, all of the electrical power lines to the equipment must
be isolated. All the electrical cables and signal cables must be connected exactly as indicated in these
operating instructions. If in doubt, contact Land Instruments International.
Storage
The instrument should be stored in its packaging, in a dry sheltered area.
Unpacking
Check all packages for external signs of damage. Check the contents against the packing note.
Lifting Instructions
Where items are too heavy to be lifted manually, use suitably rated lifting equipment. Refer to the
Technical Specication for weights. All lifting should be done as stated in local regulations.
IMPORTANT INFORMATION - PLEASE READ
Contact Us
UK - Droneld
Land Instruments International
Tel: [phone]
Email: [email protected]
Web: www.landinst.com
USA - Pittsburgh
AMETEK Land, Inc.
Tel: [phone]
Email: [email protected]
[email protected]
Web: www.ametek-land.com
For further details on all LAND/Ametek ofces, distributors and representatives, please visit
our websites.
Return of Damaged Goods
IMPORTANT If any item has been damaged in transit, this should be reported to the carrier and to the
supplier immediately. Damage caused in transit is the responsibility of the carrier not the supplier.
DO NOT RETURN a damaged instrument to the sender as the carrier will not then consider a claim. Save
the packing with the damaged article for inspection by the carrier.
Return of Goods for Repair
If you need to return goods for repair please contact our Customer Service Department. They will be
able to advise you on the correct returns procedure.
Any item returned to Land Instruments International should be adequately packaged to prevent damage
during transit.
You must include a written report of the problem together with your own name and contact information,
address, telephone number, email address etc.
Design and Manufacturing Standards
The Quality Management System of Land Instruments International is approved to BS EN ISO 9001 for
the design, manufacture and on-site servicing of combustion, environmental monitoring and non-contact
temperature measuring instrumentation.
Approvals apply in the USA
This instrument complies with current European directives relating to Electromagnetic
Compatibility 89/336/EEC, Low Voltage Directive 73/23/EEC, and ATEX Directive 94/9/EC.
The Quality Management System of Ametek Motors (Shanghai) Co. Limited is approved to
ISO9001:2008 for the Design and Manufacturing of Motors and the Manufacturing of Gas
Analysers.
Operation of radio transmitters, telephones or other electrical/electronic devices in close
proximity to the equipment while the enclosure doors of the instrument or its peripherals
are open, may cause interference and possible failure where the radiated emissions exceed
the EMC directive.
The protection provided by this product may be invalidated if alterations or additions are made to the
structural, electrical, mechanical or pneumatic parts of this system. Such changes may also invalidate the
standard terms of warranty.
Copyright
This manual is provided as an aid to owners of Land Instruments International’s products and contains
information proprietary to Land Instruments International. This manual may not, in whole or part, be
copied, or reproduced without the expressed written consent of Land Instruments International Ltd.
Copyright © 2014 Land Instruments International.
MARCOM0311

R4 Thermometer User Guide

User Guide R4 Thermometer
Contents
1 Introduction 1
1.1 About the Thermometer 1
1.2 Unpacking the Thermometer 1
1.3 Nomenclature 1
2 Specications 2
3 Installing the Thermometer 3
3.1 Positioning the Thermometer 3
3.2 Target Size 4
4 Thermometer Operation 5
4.1 Alignment Laser 5
4.2 Aiming the Thermometer at the Target 6
4.3 Electrical Connections 6
4.4 Connections to the LMG Signal Processor 7
5 Maintenance 8
6 Accessories 9
6.1 Protective Jacket Assembly 9
7 Ratio Thermometry 10

R4 Thermometer User Guide
Fig. 1 Land R4 thermometer S4970222
Fig. 2 System 4 Thermometer with Air Purge, Protection Jacket and Back Cap
S4970223
Air Purge Thermometer Jacket Back Cap

Page 1
User Guide R4 Thermometer
1 Introduction
This User Guide gives the necessary information required to operate a LAND
R4 Thermometer.
1.1 About the Thermometer
The LAND R4 Thermometer is an accurate, non-contact thermometer
designed for use in conjunction with a LAND LMG signal processor containing
an R4 I/O card (card type = 6) from which it derives the nominal +/-20V d.c.
power supply required for its operation.
The optical system focuses infrared energy from the target surface onto a
detector. The thermometer outputs two individual d.c. signals which are
analogues of the surface temperature. The actual target surface temperature
is then calculated by the LMG signal processor, from the ratio of these two
signals.
Ratio thermometers are principally used for applications where radiation
reaching the detection system is reduced by atmospheric obscuration in the
lineofsight,orwheretheeldofviewisonlypartiallylledbythetarget
surface.
1.2 Unpacking the Thermometer
It is important to fully check all equipment with which you have been
supplied.
The packaging should contain the following items:
• R4 Thermometer User Guide.
• A binder for documentation.
• R4Thermometerttedwithprotectivelenscap.
It is recommended that the protective lens cap is kept attached until
thermometer installation is fully complete.
1.3 Nomenclature
The thermometer detail label is on the rear face of the thermometer above
the eyepiece.
Make a note of your thermometers instrument type and Serial Number in the
spaceprovidedbelow.ThisinformationisrequiredtocongureaLandmark
processor to work with your thermometer.
Instrument type:
Serial Number:

Page 2
R4 Thermometer User Guide
2 Specifications
Thermometer type: R42x
Temperature range: 300 to 600°C
Uncertainty: ±5°C
Repeatability:
Detector: InGaAs, Silicon
Response time: 1s to 98%
Output:     ≈10Vd.cat600°C
Optics:     Twoelement,reective
Nominaleldofview:  30:1
Focus distance: R423 = 600mm
      R429=innity
Ambient temperature range: 5 to 45°C
Vibration: 3G any axis 10 to 300Hz
Sealing: To IP65/NEMA 4x requirements
CE: EN 50-082-2 (immunity)
EN 50-081-1 (emission)
IEC 1010 (safety)

Page 3
User Guide R4 Thermometer
3 Installing the Thermometer
If the thermometer is to be used in conjunction with a protection jacket and
air purge (recommended), cross-refer to the Installation Guides provided with
those accessories.
Fig. 3 R4 Thermometer Installation Dimensions
3.1 Positioning the Thermometer
A position should be chosen for the thermometer that is accessible for
servicing and where it is not exposed to heat, fumes and water spray etc. The
path between the thermometer and hot surface should be as free as possible
from smoke or water spray and from the intrusion of machinery.
The axis of the thermometer should be approximately at right angles to
the hot surface. However, an angle of up to 45° from the normal is usually
acceptable.

Page 4
R4 Thermometer User Guide
3.2 Target Size
The R423 Thermometer is nominally focused at 600mm.
TheR429Thermometerisfocusedatinnity.
Fig. 4 R4 Thermometer Target Size tables
Fig. 5 R4 Thermometer laser warning labels

Page 5
User Guide R4 Thermometer
4 Thermometer Operation
4.1 Alignment Laser
Warning
CLASS 2 Laser Product.
DO NOT stare into laser beam. (1.0mW maximum output at 635nm)
DO NOT look directly towards the thermometer window, or into the
laser beam during operation.
Ifthelaserisprojectedontoahighlyreectivesurface,DONOTlook
atthelaserspotfromapositionwhereadirect(‘mirror-like’)reection
may enter the eye.
Warning
CLASS 2 Laser Product.
DO NOT attempt to disassemble the laser unit or any of its mounting
components.
Embedded laser has a maximum output of 5mW with a beam
divergence of <5mrad.
Caution
Caution - use of controls or adjustments or performance of procedures
otherthanthosespeciedhereinmayresultinhazardousradiation
exposure.
4.1.1 Alignment Laser Specifications
Operating Wavelength: 635nm
Output Power: <1mW
LaserSafetyClassication: ClassII/Class2

Page 6
R4 Thermometer User Guide
4.2 Aiming the Thermometer at the Target
When the thermometer has been correctly installed in the desired location,
it must then be aimed at the target area using the in-built Laser Alignment
facility.
The laser is triggered into operation by the use of a push button switch
which applies a transient signal (changing from a positive voltage to 0V) to
the signal 4 terminal. Once activated, the laser remains on, irrespective of
the switch position, for a period of between 50 and 60 seconds after which
time it switches off automatically. The laser beam has been aligned during
manufacture to be coincident with the optical centre of the thermometer’s
infrared viewing axis.
Remember that the measurement target is much larger than the laser spot,
thesizebeingdenedasinSection3.2.
There are two different possibilities for positioning the trigger switch:
• Operation from LMG signal processor rear panel.
• Operation from an auxiliary push button switch mounted near to the
thermometer jacket when the signal processor is distant from the
thermometer location.
Further information detailing the connections required, for both methods of
positioning the trigger switch, can be found in the Thermometer Installation
Guide.
4.3 Electrical Connections
The electrical connections for the thermometer power supply and temperature
outputs are made via the 8-way socket on the rear of the thermometer.
Fig. 6 Location of 8-way electrical connection socket
NOTE
Cable lengths - The maximum overall resistance of the cable used to
connect the thermometer to the processor is 20 ohms. The commonly
used cable is 7 x 0.2mm core, which is rated at 92 ohms per km thus
allowing a maximum cable length of 217 metres (i.e. 20/92 x 1000
m). This is the maximum total cable length. Therefore we recommend
a maximum cable length of 200 metres, including any junction boxes:
e.g. Thermometer > 150m cable > Junction box > 50m cable > Processor

Page 7
User Guide R4 Thermometer
Electrical connections to the thermometer
must be made through the pre-wired plug
supplied with the thermometer or through
the plug housed in the protective jacket
back cap.
To connect either plug type to the
thermometer socket:
• Align the red marker near the lugs of the plug with the red marker
located above the keyway in the thermometer socket.
• Push the plug into the socket, ensuring that the locking sleeve slides
forwards, locking the plug to the socket.
To disconnect either plug type from the thermometer socket:
• Grip the locking sleeve portion of the plug.
• Slide the locking sleeve rearwards to release the locking mechanism and
disconnect the plug from the thermometer socket.
4.4 Connections to the LMG Signal Processor
KeywayLugs
Marker
Marker
Fig. 6 Connection Schedule for 8-way Plug and Socket
Depending upon the Landmark Graphic (LMG) signal processor operating
software version, the thermometer type selection should be set to either:
RP42 C
or R4 300/600C

Page 8
R4 Thermometer User Guide
5 Maintenance
Thermometer maintenance consists mainly of ensuring that the front lens
remains clean and free from contamination.
If the lens becomes dirty, it is recommended that a soft, lint-free cloth and a
suitablelenscleaninguidisusedtocleananycontaminationfromthelens
surface.
Should it be found that the lens becomes repeatedly dirty, it may be
necessary to utilise an air purge accessory which can be supplied by Land
Instruments. Contact Land Instruments International for more information
regarding available accessories.
If the thermometer is used in conjunction with a protective cooling jacket,
ensurethatthereisanadequatesupplyofcoolant.Therecommendedow
rate for coolant is 1 litre per minute (1l/min or 0.035cuft/min).
If the thermometer is to be used in conjunction with an air purge accessory,
ensure that there is an adequate supply of clean, dry air. The recommended
owrateforpurgeairis1litrepersecond(1l/secor2cuft/min).
Warning
Never ‘over-cool’ the thermometer as this may result in condensation
either on or inside the thermometer.
To prevent over-cooling, ensure that the water supply temperature is
not lower than the local dewpoint temperature.

Page 9
User Guide R4 Thermometer
6 Accessories
The following section gives information about the range of mountings and
accessories available for use with this thermometer system.
If the thermometer is to be used in an environment where the ambient
temperatureishigherthanthatspecied,orwheretheatmospherecontains
a high proportion of dust/smoke/steam etc, then the thermometer must be
housed in a Protective Jacket Assembly.
All system mountings and accessories are available from Land Instruments
International.
6.1 Protective Jacket Assembly
This assembly fully protects the thermometer and thermometer connections
from the effects encountered when installed within an hostile environment.
6.1.1 S4J Protective Jacket (Part No: 091.560)
The S4J Protective Jacket provides an effective air or water cooling facility
for the thermometer. It ensures that the thermometer is protected from the
excessive environmental conditions that may be encountered during the
operation of the process.
6.1.2 S4P Air Purge Assembly (Part No: 091.561)
The S4P Air Purge Assembly provides a stream of clean, dry air to the lens of
the thermometer, ensuring that the lens is kept free from condensation, dirt
and any other contaminants which may otherwise settle onto and soil the lens
surface.
6.1.3 S4CA End Cap Assembly for AET/AQT (Part No: 092.699)
The S4CA End Cap Assembly ensures environmental protection for the
electrical connections to the thermometer. Connections are made to the
terminal strip inside the End Cap cover. Camlock fasteners ensure that the
End Cap is securely fastened to the protective jacket.

Page 10
R4 Thermometer User Guide
7 Ratio Thermometry
A ratio (or two colour) thermometer measures the radiation from a target
surface at two separate wavelengths. The two signals are then electronically
divided to produce the ratio signal; this signal is taken as a measure of the
target surface temperature:
Ratio Signal = Voltage signal at short wavelength
Voltage signal at long wavelength
The individual outputs are obviously dependant on surface emissivity but
if this is equal at both wavelengths, then the ratio is unaffected and the
temperature estimation will be exactly the same as for the black body
calibration. Such a surface is aid to be “grey” at these wavelengths.
For most surfaces, however, the emissivity changes with wavelength and thus
the measured signal ratio is changed by the non-greyness factor:
Emissivity at short wavelength
Emissivity at long wavelength
For a body whose emissivity is larger at the shorter wavelength the non-
greyness factor is >1 and the ratio is also high by this factor. This produces
anarticiallyhightemperatureindicationwhichmaybecorrectedbydividing
the measured ratio by the non-greyness factor during the processor stage.
The setting of non-greyness control and the range of values which may be
used are dealt with in the Landmark Signal Processor User Guide.

PRODUCT WARRANTY
Thank you for purchasing your new product from Land Instruments International. This Land
manufacturer’s ‘back-to-base’ warranty covers product malfunctions arising from defects in design
or manufacture. The warranty period commences on the instrument despatch date from the Land
Instruments International Ltd. factory in Droneld, UK.
36 MONTHS WARRANTY
Building upon the reputation for reliability and longevity that System 4 and UNO thermometers
have earned, Land are delighted to be able to provide our customers with an industry-leading
36 month warranty for the following products:-
• SPOT thermometers, accessories and mountings and special instruments based on SPOT.
• System 4 thermometers, processors, accessories and mountings and special instruments
based on System 4.
• UNO thermometers, accessories and mountings and special instruments based on UNO.
• Application-dedicated processors based on LANDMARK®Graphic.
• ABTS/S and ABTS/U
• FTS
• VDT/S and VDT/U
• DTT
• FLT5/A
This 36 month warranty is provided as standard for all orders for the products listed above received from
1st May 2002.
We believe that our customers expect us to set the standard in terms of performance, quality, reliability and
value for money. This 36 months warranty, as a part of an on-going program of continuous improvement,
is just one way in which Land strive to maintain our position as the temperature measurement partner of
choice.
24 MONTHS WARRANTY
The following Land Instruments International products are provided with a 24 months warranty:
• ARC.
• FTI-E
• NIR
12 MONTHS WARRANTY
All Land Instruments International products not provided with either a 36 month or 24 month warranty (see
lists above), are provided with a 12 months warranty.

PRODUCT WARRANTY
EXCLUSIONS FROM WARRANTY
It should be noted that costs associated with calibration checks which may be requested during the warranty
period are not covered within the warranty.
Land reserve the right to charge for service/calibration checks undertaken during the warranty period if the
cause is deemed to fall outside the terms of the warranty.
This Land manufacturer’s warranty does not cover product malfunction arising from:-
• incorrect electrical wiring.
• connection to electrical power sources outside the rating of the product.
• physical shock (being dropped, etc.) and impact damage.
• inappropriate routing, support, physical shock & strain protection, etc. of the lightguide (Fibroptic
thermometers only).
• environmental conditions exceeding the IP / NEMA rating of the product.
• environmental conditions outside the Ambient Temperature, Humidity and Vibration rating of the product.
• environmental contamination (solvent vapours, deposition of airborne contamination, cooling liquids of
non-neutral pH, etc.).
• overheating as a result of interruption of water/air ow through cooling jackets or of incorrect installation.
• inappropriate modication of product (drilling holes in thermometer bodies, etc.).
• inappropriate recalibration which results in product calibration being taken outside specication.
• improper resealing of thermometer following parameter adjustment (UNO, FLT5/A, etc.).
• attempted repair by a non-Land-authorised repair centre.
Land Instruments International Ltd • Dronfield S18 1DJ • England • Tel: [phone] • Fax: [phone]
Email: [email protected] • www.landinst.com
AMETEK Land, Inc. • 150 Freeport Rd. • Pittsburgh, PA 15238 • U.S.A. • Tel: [phone]
Email: [email protected] • www.ametek-land.com
For a complete list of our international offices, please visit www.landinst.com Issue 3: 15 January 2015
MARCOM0290