Ametek LAND R1500T User manual

Landcal Blackbody Source
Type R1500T
Land Instruments International
Droneld S18 1DJ
England
Telephone: [phone]
Facsimile: [phone]
Email: [email protected].uk
Internet: www.landinst.com
© Land Instruments International, 2008-2012
AMETEK Land, Inc.
150 Freeport Road.
Pittsburgh, PA 15238. U.S.A.
Telephone: [phone]
Facsimile: [phone]
Email: [email protected]
Internet: www.ametek-land.com
User Guide
Part Nº: 198.033
Issue 6 : February 2012

SAFETY WARNING
Insulation made from High Temperature Insulation Wool
Refractory Ceramic Fibre, (better described as Alumino Silicate Wool)
(ASW)
This product contains alumino silicate wool products in its thermal insulation.
These materials may be in the form of blanket or felt, formed board or shapes,
mineral wool slab or loose ll wool. Whilst there is no evidence of any long
term health hazards, we strongly recommend that safety precautions are
taken whenever the materials are handled.
Exposure to brous dust may cause respiratory disease.
When handling the material always use an approved respiratory
protection equipment (RPE-i.e. FFP3), eye protection, gloves and long
sleeved clothing.
Avoid breaking up waste material. Dispose of waste in sealed
containers.
After handling, rinse exposed skin with water before washing gently
with soap (not detergent). Wash work clothing separately.
Before commencing any major repairs we recommend reference to the
European Association representing the High Temperature Insulation Wool
industry (www.ecjia.eu)

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.
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.
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]
E-Mail: [email protected].uk
Web: www.landinst.com
USA - Pittsburgh
AMETEK Land, Inc.
Tel: [phone]
E-Mail: [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 and Low Voltage Directive 73/23/EEC.
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 both CE and IP classications to 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 © 2012 Land Instruments International.

Contents
1 Introduction 1
2 Description 3
3 Specication 4
4 Electrical Supply 5
5 Commissioning 7
6 Using the Furnace 12
7 Calibration of Radiation Thermometers 13
8 Maintenance 14
9 Eurotherm Temperature Controller Type 3216CC 16
10 Spares 18
11 Accessories 19

User Guide Landcal Blackbody Source
Type R1500T
Page 1
1 Introduction
The LANDCAL blackbody type R1500T provides a temperature source for the on-
site or in-laboratory calibration of radiation thermometers up to a temperature
of 1500°C (2750°F). The source has been designed primarily for the calibration
of short wavelength thermometers (silicon cell and Germanium detectors)
but it can also be used for thermometers tted with other types of detectors.
However when the calibration of longer wavelength thermometers are checked it
is recommended that the calibration by comparison method is adopted.
Calibration is made by comparing the output from the thermometer under test
with the target temperature.
The target temperature can be measured in 3 ways:
1) If traceability to national standards is not required, a check on the
thermometer can be conducted by using the controller indication. From
previous work, the indicated temperature has been found to agree with the
radiance temperature to within ±10°C at 1000°C when using thermometers
operating at short wavelengths.
2) The temperature of the target can be measured by using a radiation
thermometer of similar detector and optical characteristics, the calibration
of which is traceable to national standards. This method of calibration
can be described as calibration by comparison with a standard radiation
thermometer.
3) Prior to supply, the relationship between the indicated controller
temperature and the true radiance temperature, as measured by a
secondary standard radiation thermometer, will have been determined
and reported in a traceable calibration certicate for the source. The
temperature of the target is determined using the controller indication and
corrected for any errors as reported in the certicate.
A UKAS (United Kingdom Accreditation Service) Certicate of Calibration is
available from LAND Instruments International for either the source or the
radiation thermometer.

Landcal Blackbody Source
Type R1500T
User Guide
Page 2
1.1 Safety information
Every effort has been made during the design and manufacture of this furnace
to ensure that it meets National and International standards of product safety.
However great care should be shown by the user at all times when operating
and maintaining high power furnaces which are capable of achieving high
temperatures.
To reduce the risk of accident, follow the instructions listed below:
Warning
To avoid the possibility of electric shock, never expose the elements,
terminals or other electrical components with the source connected
to the mains supply. After completion of a repair, replace all safety
plates before switching on the source.
To avoid the possibility of burns never attempt to dismantle the
source until it has cooled to a safe temperature. This may involve an
overnight wait.
This source contains no asbestos. The alumina-silicate (ceramic
bre) materials used release dust when disturbed which may, in some
individuals, be an irritant to the skin, nose and throat.
Safety Note - Refractory Fibrous Insulation
This product contains alumino silicate wool products in its thermal insulation.
These materials may be in the form of blanket or felt, formed board or shapes,
mineral wool slab or loose ll wool. Whilst there is no evidence of any long
term health hazards, we strongly recommend that safety precautions are taken
whenever the materials are handled.
Exposure to brous dust may cause respiratory disease.
When handling the material always use an approved respiratory
protection equipment (RPE-i.e. FFP3), eye protection, gloves and long
sleeved clothing.
Avoid breaking up waste material. Dispose of waste in sealed
containers.
After handling, rinse exposed skin with water before washing gently
with soap (not detergent). Wash work clothing separately.
Before commencing any major repairs we recommend reference to the European
Association representing the High Temperature Insulation Wool industry (www.
ecjia.eu)
We can provide further information on request. Alternatively, our Service
Department can quote for any repairs to be carried out, either at your premises
or at Land Instruments International.

User Guide Landcal Blackbody Source
Type R1500T
Page 3
2 Description
The LANDCAL blackbody source type R1500T is a transportable, self contained
unit designed for use on any reasonably at surface.
The cylindrical target with conical end is manufactured from silicon carbide and
is designed to give a high emissivity cavity. The target is heated by radiant
energy from six silicon carbide rod heaters. The source is tted with a three
term temperature controller which allows the source to heat up to 1500°C in
about 30 minutes and holds it stable at temperatures to within ±1°C (2°F).
If the source is used as a transfer source (i.e. calibration by comparison method
adopted) a set of optional standard radiation thermometers will be required.
The selection of standards will depend upon customer requirements, e.g.
working temperature range, type of radiation thermometers to be calibrated etc.
Ideally the standards should be of a similar type to those being tested as strict
comparisons can then be made. The standards listed below are recommended.
System 4
Type M1 Calibrated Temperature Range: 600 to 1500°C
Type M2 Calibrated Temperature Range: 500 to 1100°C
Portable
Cyclops 100 Calibrated Temperature Range: 550 to 1500°C
One standard should be returned each year to LAND for re-certication or at any
time when a discrepancy is detected.
An optical bench assembly is also offered as an accessory. This is used as a
convenient means of mounting and lining up the jacket used to house in turn
the standard and test thermometers. It ensures that both items use the same
sighting path. Vernier adjustments allow precise positioning.
Fig. 1 Landcal black body calibration source type R1500T CA970248/a

Landcal Blackbody Source
Type R1500T
User Guide
Page 4
3 Specification
Maximum working temperature: 1500°C/2750°F
Heating rate: 30 mins to 1450°C/2650°F
Recommended temperature range: 500°C/950°F to 1500°C/2750°F
Stability: Radiance temperature variation <±1K (±2°F) over
a 30 minute period
Uniformity: The temperature gradients across the middle
40mm of the 45mm cavity are within ±2°C at
500°C, and within ±1°C at 1500°C
Radiation cavity
Material: Silicon carbide
Design: Cylinder with 120° conical end
Inner diameter: 45mm/1.8in
Internal length: 100mm/4.0 in. When the radiation cavity is
installed in the source, the distance from front
face to cone point is 145mm/5.7in
External aperture: Approx. 38mm/1.5in.
Emissivity: Approximately 0.99 at short wavelengths
Resistance heating elements: 220V/240V source. 6 off, SiC type
14/175/315.D.5/7.0
Part Nº 135.160
110V/120V source. 6 off, SiC type
14/175/315.D.5/5.5
Part Nº 135.162
Controller: Eurotherm 3216 with RS 232 serial interface
Electrical supply: 220/240V a.c. 50/60 Hz Part Number
135.191
110/120V a.c. 50/60 Hz Part Number
135.180
Power consumption: 3.0 kW
Overall dimensions
Height: 540mm/21.3in
Width: 350mm/13.8in (upper case)
380mm/15.0in (lower case)
Depth: 500mm/19.7in
Bench to cavity centre height: 355mm/14.0in
Weight:
Nett: 26kg/57 lbs
Gross: 32kg/77 lbs
Uncertainty (with UKAS Certicate) 500°C to 1500°C: ±3 to ±3.5°C/±6 to ±7°F

User Guide Landcal Blackbody Source
Type R1500T
Page 5
4 Electrical Supply
4.1 Electrical connections
A suitable single phase a.c. electrical supply with earth (ground) will be
necessary. The supply may be live to neutral non reversible, live to neutral
reversible or live to live. The furnace must be connected to the electrical supply
for which it was ordered. Details of the voltage, current and frequency required
are stated on the furnace plate attached to the furnace. The supply point must
be within reach of the operator and must incorporate either an isolating switch
or a quickly removable plug.
If the furnace is supplied with a mains cable tted then it may be wired directly to
an isolator or tted with a line plug. Supply rated fuses will be internally tted.
If the furnace is supplied without a mains cable, the specication for suitable
cable for 220/240V operation is:
300/500 volt, PVC insulated 3 core cable. Each core 4mm ² for 110/120V
operation.
300/500 volt, PVC insulated 3 core cable. Each core 2.5mm ² for 220/240V
operation.
The colour code for the cable is:
Brown lead Live
Blue lead Neutral
Green Yellow lead Earth (ground)
As no internal supply rated fuses are tted, a permanent connection to an
appropriately fused and isolated supply must be made to the internal terminals
after temporary removal of the furnace panel.
4.2 Fuses
Refer to the circuit diagram, Fig. 2.
F1 Internal supply fuses are only tted if a mains cable is tted. The supply to
the furnace should be fused to the same rating.
110/120V 40 amp fuse
220/240V 25 amp fuse
F2 Instrument circuit fuses 32mm x 5mm glass, 2 amp
F3 Heat light fuses 32mm x 5mm glass, 2 amp
Not tted for 220/240V operation
Fitted for 110/120V operation
4.3 Earth leakage
Warning
It is recommended that this furnace is not used in conjunction with an
earth leakage trip switch. At elevated temperatures all ceramic materials
become slightly conductive. This may mean that at temperatures
above 1000°C a leakage current in excess of 30 milliamps is present.
This will cause an earth leakage trip switch to activate.

Landcal Blackbody Source
Type R1500T
User Guide
Page 6
Fig. 2 Wiring diagram for the LANDCAL Blackbody type R1500T CA970249
4.4 Wiring diagram
GR/Y
L N E
TC
235
9 Pin ‘D’ connector
RS 232
SSR
ELEMENT(S)
Mains filter
+ -
L N
R
R
+
-
+
-
Thermocouple
HEAT
PI G
BU
R
BU
Instrument
switch
Supply
light
F2
F2
F1 F1
F3 F3
R Red SSR Solid State Relay
PI Pink
BU Blue TC Temperature Controller
GR/Y Green & Yellow
GR Grey F Fuses

User Guide Landcal Blackbody Source
Type R1500T
Page 7
5 Commissioning
5.1 Inspection on receipt
Physically examine all items for any damage that may have occurred during
transit. Check the contents against the packing note.
If any items have been damaged in transit, this should be reported to the carrier
and to the supplier immediately, BUT DO NOT RETURN damaged items until the
carrier has considered a claim. Save the packing with the damaged article for
inspection by the carrier.
5.2 Furnace assembly
The following paragraphs describe the step by step procedure to prepare the
furnace for switch on. See also Fig. 3.
Place the furnace in a well ventilated room on a surface which is resistant to
heat. Ensure that there is free space around the furnace. Do not obstruct any
of the vents in the control section, they are needed to keep the controls cool.
To minimise the risk of damage to the furnace during transit, the target cavity
together with a ceramic plug, six silicon carbide heating elements and a set of
element support brackets/braids are supplied separately. These items should be
tted as follows:
1) Remove the stainless steel front panel unscrewing the four equally spaced
screws. The ceramic tube in the back of the furnace chamber supports the
smaller end of the cavity.
2) Insert the cavity into the furnace so that the front edge of the cavity is
level with the second layer of insulation.
3) Gently push the ceramic plug into the insulation to hold the target in place.
4) Replace the stainless steel plate.
5) Remove the four screws that hold the painted rear panel to gain access to
the element connections.
6) Carefully insert the elements into the furnace ensuring that they locate into
the recess at the front. Extreme care should be taken not to strain the
elements as they are very fragile.
7) Position the element support brackets to locate onto the element heads and
use the self-tapping screws to attach the brackets to the brickbox. Tighten
rmly into position.
8) Attach the electrical connections as shown in Fig. 4 (220/240V) or Fig. 5
(110/220V).
9) Replace the back panel.
10) Connect the furnace to the mains supply as described in ‘Section 4.0 -
Electrical Supply’.

Landcal Blackbody Source
Type R1500T
User Guide
Page 8
Ceramic insulation
Set of 6 elements
held in place with
support brackets
Painted back panel
Front insulation plug
SiC target cavity
Control thermocouple
Stainless steel
front plate
Fig. 3 Assembly diagram for the LANDCAL Blackbody type R1500T

User Guide Landcal Blackbody Source
Type R1500T
Page 9
Fig. 4 Elements connections for the LANDCAL Blackbody Type R1500T- 220/240V
CA970250
Fig. 5 Element connections for the LANDCAL Blackbody Type R1500T - 110/120V
CA970251
Term inal Post
Elem en t Braid
Elem en t Head
Elem en t
Support
Bracket
Term inal Post
Elem en t Braid
Elem en t Head
Elem en t
Support
Bracket

Landcal Blackbody Source
Type R1500T
User Guide
Page 10
5.3 Heating up the source
Caution
When the source is operated at any temperature above ambient, the
front face and plate become hot.
The recommended temperature range for the source is 500°C to 1500°C (950°F
to 2750°F). Set the controller to the required value as follows:-
1) When rst switched on the controller goes through a self check procedure.
2) When this check is completed two displays will be visible.
Upper display Actual source temperature
Lower display Set point temperature
3) To modify the set point, press the ‘Up’ or ‘Down’ button until the required
value is obtained.
4) The source will be ready for use at 1450°C (2650°F) approximately 30
minutes after switch on.
5) The output light ‘OP’ indicates the state of the controllers output signal
to the solid state relay which in turn switches the power to the heating
element.
NOTE
All other controller parameters are factory set and locked. It should not
be necessary to adjust them.

User Guide Landcal Blackbody Source
Type R1500T
Page 11
5.4 Using the RS232C Serial Interface Port
The source is supplied with a sub-miniature D-socket connected to the controller
communication module to give RS232 serial communication. RS232 is suitable
for direct connection to a personal computer (PC), using a cable conguration as
shown below. The linked pins at the computer end are recommended, but may
not be necessary.
The required cable is a 9-pin to connect to the furnace, and either a 9-pin or 25-
pin to connect to the computer.
RS232 Cable: Furnace to PC connections
Furnace end of cable - female Computer end of cable - male
9-pin 9-pin (25-pin)
Rx 3 3 (2) Tx
Tx 2 2 (3) Rx
Com 5 5 (7) Com
7,8 (4,5) Link together
1,4,6 (6,8,20) Link together
The source is shipped with the RS232C communications protocol set to
MODBUS, with the baud rate set to 9600 and no delay. The communication
address is set to 1.
The source must only be connected and used with a PC by a person who
understands how the serial communications function operates. If further
information is required, either contact your local Eurotherm agent and request
a copy of the Series 3000 Communication handbook, or consult the Eurotherm
website.

Landcal Blackbody Source
Type R1500T
User Guide
Page 12
6 Using the Furnace
6.1 Introduction
The furnace has been designed to create a target of uniform temperature with a
high emissivity at short wavelengths for calibrating radiation thermometers. The
target is a conical cavity at one end of a hollow cylinder, and the thermometer
views the target along the axis of the cylinder.
The cone plays an important part in establishing uniformity of radiation emitted
by the target and when calibrating radiation thermometers the target size
requirements must be met by the cone. If the thermometer target size is so big
that the walls of the cylindrical block are viewed, a less accurate calibration will
result.
6.2 Measuring thermocouple/indicating controller
A thermocouple situated between the heating elements and the conical target is
used to measure and control the temperature. The controller's digital indicator
on the side of the furnace displays the temperature measured.
Agreement between the thermocouple measurement and a reference standard
radiation thermometer is better than ±20°C at 1500°C, ±10°C at 1000°C.
The errors are repeatable, and a correction curve can be obtained with a
Certicate of Calibration for the source. A UKAS (United Kingdom Accreditation
Service) Certicate of Calibration is available from LAND Instruments
International.
6.3 On-site use
The source is transportable, so it can be used either in the laboratory where the
radiation thermometers are brought to the source for checking or taken to site
where the source is used close to the thermometer installations.
Before taking to site it is recommended that the elements are removed from
the source and carried separately in the foam lined boxes provided. After
use it is recommended that if possible the source is left to cool to an internal
temperature of below 200°C and the elements again removed before shipment.
These precautions will extend the life of the heating elements.

User Guide Landcal Blackbody Source
Type R1500T
Page 13
7 Calibration of Radiation Thermometers
7.1 Preparation
The furnace control setting will usually be the normal working temperature of
the thermometer to be tested. The target temperature is either that indicated
by the measuring thermocouple displayed on the controller indicator, or that
indicated by a standard radiation thermometer.
7.2 Thermometer calibration
When the source is stable at the chosen control temperature, place the
thermometer under test in the holder and measure the thermometer output.
Note the target temperature immediately.
7.3 Calibration procedures
When calibrating radiation thermometers it is important to follow documented
step-by-step procedures to ensure that specied calibration conditions are met,
irrespective of operator. If difculty is experienced in writing procedures, LAND
Instruments International will be pleased to offer guidance.

Landcal Blackbody Source
Type R1500T
User Guide
Page 14
8 Maintenance
8.1 Routine servicing
The source is fully tested and evaluated before supply and should give years of
trouble free operation. No regular servicing or maintenance is required. The
outer surfaces may be cleaned with a damp cloth. Do not allow water to enter
the case. Do not clean with organic solvents.
In the unlikely event of a failure we would recommend the source is returned to
a LAND company direct or to one of the LAND distributors for repair.
Sections 8.2 to 8.4 provide information for the customer replacement of
consumable items.
8.2 The heating elements
Silicon carbide elements oxidise slowly during use, resulting in increasing
resistance. The effect is offset by re-adjustment of the power regulator.
A time will come when the resistance becomes so high that correct adjustment
is unobtainable. At this point the elements must be changed.
In the event of an element failure, replace it in the manner described in Section
5.2. It is advisable to replace all elements if only one or two fail, because
new elements have a lower resistance than used ones which have aged. The
elements are series connected and the lower voltage drop across a new element
will tend to cause premature failure of the remaining older elements. The good
older units can be saved to make up a set of part worn elements.
8.3 The control thermocouple (Pt 13% Rh/Pt)
Replacement of the control thermocouple is carried out as follows:
1) Make sure that the furnace is not connected to the mains supply.
2) Remove the lower side panel not containing the controller.
3) Disconnect the thermocouple assembly from the insulation cylinder.
4) Disconnect the thermocouple from the connector block.
5) Remove the thermocouple from its sheath.
6) Fit the new thermocouple, connecting the positive leg (Pt 13% Rh) to the
positive side of the compensating lead (coloured red) and the Pt leg to the
green lead.
7) Re-connect the thermocouple assembly.
8) Replace the cover.