Ametek Land Landcal P1600B2 User manual

Landcal Blackbody Source
Type P1600B2
Land Instruments International
Droneld S18 1DJ
England
Telephone: [phone]
Facsimile: [phone]
Email: [email protected]
Internet: www.landinst.com
© Land Instruments International, 2008-2016
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: 800729
Issue 5 : 28 June 2016

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.
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]
Web: www.ametek-land.com
China
AMETEK Land China Service
Tel: [phone] ext 122
Email: [email protected]
Web: www.landinst.com
India
AMETEK Land India Service
Tel: +91 - 80 67823240
Email: [email protected]
Web: www.landinst.com
For further details on all AMETEK Land 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
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 © 2016 Land Instruments International.
MARCOM0311, Issue 6, 24 May 2016
Approvals apply in India

User Guide Landcal Blackbody Source
Type P1600B2
Contact Us
UK - Droneld
Land Instruments International
Tel: [phone]
Email: [email protected].uk
Web: www.landinst.com
USA - Pittsburgh
AMETEK Land, Inc.
Tel: [phone]
Email: [email protected]
Web: www.ametek-land.com
China
AMETEK Land China Service
Tel: [phone] ext 122
Email: [e-mail]
Web: www.landinst.com
India
AMETEK Land India Service
Tel: +91 - 80 67823240
Email: [email protected].uk
Web: www.landinst.com
For further details on all AMETEK Land 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
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 © 2016 Land Instruments International.
MARCOM0311, Issue 6, 24 May 2016
Approvals apply in India
Contents
1 Introduction 1
2 Description 3
3 Specication 4
4 Electrical Supply Details 5
5 Commissioning 9
6 Using the Furnace 16
7 Calibration of Radiation Thermometers 18
8 Calibration of Thermocouples 20
9 Maintenance 21
10 Fault Finding 25
11 Eurotherm Temperature Controller Type 3216CC 26
12 Spares 28
13 Accessories 28

Landcal Blackbody Source
Type P1600B2
User Guide

User Guide Landcal Blackbody Source
Type P1600B2
Page 1
1 Introduction
The LANDCAL Blackbody Source type P1600B2 enables accurate testing and
precise calibration of LAND Radiation Thermometers, at temperatures from 500
to 1600°C (950 to 2900°F).
The source is a primary standard black body, which permits high precision
calibration of radiation thermometers. When the set point temperature is
reached, the output from the thermometer under test is compared with the
temperature of the source, as measured by an optional Platinum thermocouple,
whose calibration is traceable to National Standards.
High precision is obtained when the source is used in conjunction with the
Platinum thermocouple, which is supplied complete with a UKAS (United
Kingdom Accreditation Service) calibration certicate. Alternatively, the source
can be used in two other ways.
1) The temperature of the source can be measured by using a radiation
thermometer of traceable calibration. This method of calibration can
be described as calibration by comparison with a standard radiation
thermometer. This method of calibration usually provides the most
accurate results, as errors due to temperature gradients and non-black
body conditions are eliminated.
2) If traceability to National Standards is not required, the source can be
used without any certication. From extensive previous experience, the
temperature (as shown on the controller indication) has been found to
agree with the radiance temperature to within ±20°C (±40°F).
To simplify the accurate line up of LAND xed installation radiation
thermometers, an optical bench assembly is oered as an optional extra.
Uniform temperature conditions are achieved along the length of the
cavity, which means that the source can also be used for the calibration of
thermocouples by the comparison method.

Landcal Blackbody Source
Type P1600B2
User Guide
Page 2
1.1 Safety information
Every eort 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 P1600B2
Page 3
Fig. 1 LANDCAL Blackbody Source Type P1600B2
301001
2 Description
The LANDCAL P1600B2 comprises a cylindrical, refractory closed end tube
(cavity) approximately 300mm (12.0in) long with an internal diameter of 50mm
(2.0in). The cavity is cast from silicon carbide and the closed end is angled at
120° to increase the emissivity value.
The cavity is placed horizontally in a furnace heated by 6 silicon carbide heating
elements running from end to end of the furnace. The temperature of the
elements is measured by a Platinum thermocouple and controlled using a digital
PID controller with negligible short term drift.
An optional standard Platinum thermocouple, with a traceable (such as UKAS)
certicate can be inserted into the cavity from the rear of the furnace and used
to determine the true temperature. A second certicated thermocouple can
be supplied and, when inserted into the cavity from the front, can be used to
determine the temperature gradients along the cavity.

Landcal Blackbody Source
Type P1600B2
User Guide
Page 4
3 Specification
Maximum working temperature: 1600°C / 2900°F
Recommended temperature range: 500 to 1550°C / 950 to 2825°F
Heating rate: 1.5 hours to 1400°C / 2550°F
Stability: With the source controlling at temperature, the radiance
temperature will vary by less than 0.5°C over a 60 minute
period
Uniformity: The temperature gradients across the middle 40mm of the
50mm cavity are within ±1°C over the temperature range 500
to 1600°C
Radiation cavity Material: Silicon Carbide
Inner diameter: 50mm / 2.0in approx.
Internal length: 300mm / 12.0in
Sighting extension tube: Length: 100mm / 4.0in
Inner diameter: 49mm / 1.9in
Emissivity: 0.998
Resistance heating element(s): 6 o SiC 151/356/20/25.4/7.4 Part Nº 135.017
Control thermocouple type: Pt 13% Rh/Pt (Type R). 280mm long. Wire diameter 0.35mm.
(Master and overtemperature) Twin bore insulation with end 60mm insulated with sh
spinebeads. This ts into an Alumina sheath of 6mm internal
diameter, 10mm outer diameter and length of 225mm. If
the thermocouple is replaced, the sheath should also be
replaced.
Controller Master: Eurotherm 3216 with RS 232 serial interface
Over temperature: Eurotherm 2132
Electrical supply: Single phase, 220/240V a.c. 50 to 60 Hz Part No. 800358
Three phase, 4 wire, 415V a.c. Part No. 800359
Three phase, 4 wire, 380V a.c. Part No. 800360
Measuring thermocouple (if supplied) Type: B(6/30) or R(0/13) or S(0/10)
Length: 600mm / 23.6in
Sheath: 8 x 5 x 600mm
Overall dimensions
Base length: 570mm / 22.4in
Base width: 350mm / 13.8in
Base height: 220mm / 8.7in
Heater enclosure diameter: 500mm / 19.7in
Heater enclosure length: 860mm / 33.8in
Bench to tube centre height: 470mm / 18.5in
Nett weight: 62kg / 135lb
The input a.c. power supply required for the particular furnace is specied on the furnace identity plate.
Mains supply requirements: For single phase operation, 47 amps º 11.3kW
For 3 phase operation, 16 amps per phase = 3.8 kW per phase
Power consumption: Furnace controller tted with power turndown so it will not
draw maximum current available. For single phase operation
maximum consumption will be 7.0kW. For 3 phase operation
maximum consumption will be 2.3kW per phase.

User Guide Landcal Blackbody Source
Type P1600B2
Page 5
4 Electrical Supply Details
4.1 Introduction
A suitable electrical supply for the furnace is required. The furnace is supplied
wired for the type of supply as ordered by the customer. With a small
amount of rewiring, it is possible to use this furnace with other supply voltage
congurations. See Section 4.5 for details.
The furnace is supplied without a mains cable. The specication for a suitable
cable is dependant on the type of supply. A suitable cable size is as follows:
a) For use with single phase, 208 to 240V (up to 50A rating):
PVC insulated 3 x 16mm² (6 AWG wire) core. Fuse supply @ 50A
minimum.
b) For use with 3 phase plus neutral, 220 to 240V / 380 to 415V (up to 16A
per phase):
PVC insulated 5 x 2.5mm² core. Fuse supply @ 16A per phase minimum.
c) For use with 3 phase delta, 208 to 240V (up to 32A per phase):
PVC insulated 4 x 6mm² core. Fuse supply @ 30A per phase minimum.
A permanent connection to an appropriately fused and isolated supply must be
made to the internal terminals as shown in Figs. 2 to 4. A cable strain relief
clamp is provided inside the furnace, located close to the cable entry hole in
the case. The supply point must be within reach of the operator and must
incorporate either an isolated switch which operates on both conductors (single
phase) or all live terminals (three phase), or a quickly removable plug. The
supply must incorporate an earth (ground).

Landcal Blackbody Source
Type P1600B2
User Guide
Page 6
Fig. 2 Terminal connection diagram for
three phase star with neutral
Fig. 3 Terminal connection diagram for
three phase delta without neutral
Fig. 4 Terminal connection diagram for
single phase
301002
301004
PE
N
L1
L2
L3
PE
N
L1
L2
L3
Not used
PE
N
L1
L2
L3
Not used
Not used
4.2 Terminal Connection Diagrams
4.3 Fuses
F1 Mains fuses 32mm x 5mm x 16A
F2 Instrument circuit fuses 20mm x 5mm x 2A

User Guide Landcal Blackbody Source
Type P1600B2
Page 7
Fig. 5 LANDCAL Blackbody Source Type P1600B2 wiring diagram
4.4 Wiring Diagram
N
L
FAN
FAN
SSR
SSR
Heat
Heat
Heat
Element(s)
Element(s)
SSR Element(s)
Coil
Coil
Coil
OTC
F1
F1
F1
F1
F1
F1
Filters
EGR/Y
BU
BU
BU
BL
BL
BL
Contactors
F2F2
Combined supply
light/inst switch
TC
235
9 Pin ‘D’ connector
RS 232
Control thermocouple
R
BU
PI
G
Over-temperature thermocouple
Key
BL Black TC Temperature controller
R Red or programmer
GR/Y Green & Yellow OTC Over-temperature controller
PI Pink SSR Solid state relay
BU Light Blue
G Grey

Landcal Blackbody Source
Type P1600B2
User Guide
Page 8
4.5 Changing the Wiring
This furnace is wired internally in such a way that it can be altered to suit the
customer's supply voltage. The following supply voltages are permissible:
1) 3-phase star conguration with neutral in the range 380/220 volts to
415/240 volts.
2) 3-phase delta conguration without neutral in the range 208 to 240
volts.
3) Single phase in the range 208 to 240 volts.
Any wiring alterations required must be made between the Supply Terminals
and the Fuses. To access the Supply Terminals and Fuses, remove the panel
adjacent to the cable entry point. Disconnect the link wires and reconnect as
required as shown in Figs 6 to 8.
Fig. 6 Internal terminal connections
three phase star with neutral
Fig. 7 Internal terminal connections
three phase delta without neutral
Fig. 8 Internal terminal connections
single phase
301006 301007
301008
N
L
N
L
N
L
Circuit N° 1
Circuit N° 2
Circuit N° 3
PE
N
L1
L2
L3
Supply
Terminals
Fuses
N
L
N
L
N
L
Circuit N° 1
Circuit N° 2
Circuit N° 3
PE
N
L1
L2
L3
Supply
Terminals
Fuses
N
L
N
L
N
L
Circuit N° 1
Circuit N° 2
Circuit N° 3
PE
N
L1
L2
L3
Supply
Terminals
Fuses

User Guide Landcal Blackbody Source
Type P1600B2
Page 9
5 Commissioning
5.1 Inspection on Receipt
Check the contents against the packing note. Physically examine all items for
any damage that may have occurred during transit.
If any items have been damaged in transit, report this to the carrier and to the
supplier immediately, BUT DO NOT RETURN damaged items until the carrier
has considered a claim. Retain the packaging 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 use. See also Fig. 11.
To minimise the risk of damage to the furnace during transit, the target cavity
together with six silicon carbide heating elements are supplied separately. If
ordered, the measuring thermocouple(s) are also supplied separately.
To t these items:
1) Unscrew the equally spaced self-tapping screws from the stainless steel
front plate. Remove the plate.
2) Unscrew a further set of equally spaced self-tapping screws and remove the
sighting tube assembly. The cavity support is clearly visible when looking
into the furnace.
3) The cavity can now be inserted. There are four grooves of dierent lengths
cast into the outside diameter of the cavity. In this particular source, only
one of the grooves is used. Other grooves are used when the same cavity
is used in other sources.
4) Insert the cavity so that the groove that nishes approximately half way
along the length is uppermost. Insert the cavity slowly. To keep the cavity
horizontal whilst it sliding into position, you can place a clean rod or tube
approximately 1.0 m / 39in long inside the cavity. When in the correct
position, the front edge of the cavity should be level with the step on the
insulation.
5) Remove the painted rear plate by unscrewing the 5 small equally-spaced
self-tapping screws. It is not necessary to unscrew the larger screws. A
stainless steel inner plate with thermocouple support tube is attached and
will come out with rear plate. This gains access to the element sleeves. An
earth strap is attached to this plate.
6) The elements can now be inserted. Carefully insert each element in turn
into the element sleeves, ensuring that they locate into the recesses at the
front. Extreme care should be taken not to strain the elements, as they
are very fragile. To avoid overheating of the element / braid connection, t
two white insulation rings at the cold end of each element. The insulation
rings may be supplied in a separate container. The elements are not tight,
so expect a small gap to allow for dierential expansion.
7) Attach the element connections as shown in Fig. 12.

Landcal Blackbody Source
Type P1600B2
User Guide
Page 10
Power Limit Setting
The power limit setting (Op.Hi) of the Eurotherm control instrument must be set
as shown in the table below (See also Fig.16, Section 11.0):
Supply voltage (V) 200 208 220/380 230/400 240/415
Op.Hi. Setting 86 80 71 65 60
If the supply voltage is specied at the time of ordering, the unit will be shipped
with the appropriate setting.
Note
All elements are marked with current ratings in the region 20 to 30
amps. The order in which they are installed is not critical. However, to
maximise element life, the three circuits each having two elements must
be matched so that the amp rating per circuit is similar.
For example, if the current ratings of the 6 elements were 22, 23, 24,
25, 26, 27 amp then the 3 circuits would be:
22 + 27 = 49 amp
23 + 26 = 49 amp
24 + 25 = 49 amp
9) Re-attach the earth strap and replace the two rear plates.
10) Use a thermocouple sheath or piece of wooden dowel of 8mm diameter to
ensure that the groove in the cavity aligns with the hole in the rear plate.
If the sheath will not slide into the source freely, gently turn the cavity
from the front until the correct position is found. It may help to exert a
small amount of upward pressure onto the sheath so that the ‘hot’ end is
pressed down into the groove in the cavity.
11) The temperature of the source can be measured using a certied
thermocouple. If this is the method of cavity temperature measurement
to be adopted, prepare the thermocouple for insertion. Before insertion,
measure a distance of 470mm from the hot end of the thermocouple. With
a pencil, draw a mark on the thermocouple sheath source corresponding to
this distance. Insert the thermocouple until the pencil mark is in line with
the painted rear plate. This is the correct position for the thermocouple.
Lock the sliding plate (on the back cover) into place.

User Guide Landcal Blackbody Source
Type P1600B2
Page 11
Note
From information obtained via extensive testing, it has been found
that when the thermocouple is inserted into the furnace by 470mm,
the thermocouple temperature usually corresponds with the radiance
temperature to within ±3°C / ±5.4°F. However, as each furnace will have
slightly dierent properties, this position is only a general guide.
For the most accurate work when using a thermocouple to determine the
radiance temperature, the correct position for the thermocouple may have to
be determined by the user. To determine the correct position, you will need
both a certied thermocouple and a certied radiation thermometer. Use
both instruments to measure the temperature of the source. The radiation
thermometer is more accurate than the thermocouple. Therefore, adjust the
depth of insertion of the thermocouple until the temperature readings from both
instruments are identical.
12) Replace the front sighting tube assembly via the self-tapping screws.
13) Replace the stainless steel front plate via the self-tapping screws.
14) Connect the source to the mains supply, as described in section 4.1.
15) Position the furnace where it is to be used. This source is designed for
bench-mounted operation and all unnecessary movement of the source
should be avoided.
Warning
To avoid the possibility of electric shock, never expose the
elements, terminals or other electrical components when
the calibration source is connected to the mains supply.
After completion of a repair, replace all safety plates
before switching on the calibration source.
To avoid the possibility of burns, never attempt to
dismantle the calibration source until it has cooled to a
safe temperature. This may involve an overnight wait.
This calibration source contains no asbestos. The alumina-
silicate (ceramic bre) materials used in this instrument
release dust when disturbed which may, in some individuals,
be an irritant to the skin, nose and throat.
5.3 Heating up the Furnace from Cold
1) When power is connected, the uorescent indicator panel lights up and
displays the measured value and starts to control. The output light glows
or ashes when heating occurs.
2) To modify the set point, press the ‘Up’ or ‘Down’ button until the required
value is obtained (See Section 11.0).
Note
All other control parameters are factory set and locked. For correct
operation, it is not necessary to adjust any other parameter. See
Section 11 for further details.

Landcal Blackbody Source
Type P1600B2
User Guide
Page 12
5.4 Overtemperature Controller Using 'Eurotherm' Model 2132
Refer to Fig. 9. When switched on, the controller lights up, goes through a short
test routine, and then displays the Overtemperature Set Point.
Fig. 9 'Eurotherm' 2132 control panel
Basic operation
Use Down and Up to alter the overtemperature setpoint. This should normally
be set a little above the maximum working temperature (say 15°C above). The
unit is supplied at 15°C above the furnace maximum working temperature.
Press Scroll to view the present temperature as seen by the overtemperature
controller. Press it twice, because the rst press shows the temperature units
(°C).
Overtemperature alarm
If an overtemperature condition occurs, the OP2 indicator ashes, and an alarm
message 2FSH also ashes, alternating with the setpoint. Power to the heating
elements is disconnected.
Resetting the overtemperature alarm
To acknowledge the alarm press Scroll and Page together.
If the alarm is acknowledged while there is still an overtemperature condition,
the OP2 indicator stops ashing but continues to glow. The 2FSH alarm
continues to ash, and normal operation is not resumed if the temperature
subsequently drops.
If the alarm is acknowledged when the temperature has dropped (or after the
overtemperature setpoint has been raised) such that the overtemperature
condition no longer exists, then the furnace resumes normal operation.
Resetting the overtemperature alarm
The overtemperature cut-out system also operates if the overtemperature
control thermocouple breaks or becomes disconnected. The message S.br
ashes instead of 2FSH.
▲▼
EUROTHERM 2132
OP1
OP2
Set Point temperature
UpDownScrollPage


User Guide Landcal Blackbody Source
Type P1600B2
Page 13
5.5 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
Com5 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 P1600B2
User Guide
Page 14
Fig. 10 Furnace assembly drawing for the Landcal Blackbody Source Type P1600B2