Ametek Land UNO Series User manual

Thermometer
© AMETEK Land Instruments International, 2019
User Guide
Issue 12
14 March 2019
Publication Nº 198.012
Language: English

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 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 AMETEK Land 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 AMETEK Land.
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 AMETEK Land.
Storage
The instrument should be stored in its packaging, in a dry sheltered area.
The maximum storage temperature is 10 °C (18 °F) higher than the maximum operating temperature.
The minimum storage temperature is 10 °C (18 °F) lower than the minimum operating temperature.
Refer to the Technical Specication for details of the operating temperature limits.
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 carried out in accordance with local and national
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 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 AMETEK Land 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 AMETEK Land.
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 AMETEK Land.
Storage
The instrument should be stored in its packaging, in a dry sheltered area.
The maximum storage temperature is 10 °C (18 °F) higher than the maximum operating temperature.
The minimum storage temperature is 10 °C (18 °F) lower than the minimum operating temperature.
Refer to the Technical Specication for details of the operating temperature limits.
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 carried out in accordance with local and national
regulations.
IMPORTANT INFORMATION - PLEASE READ
Contact Us
UK - Droneld
Land Instruments International
Tel: [phone]
USA - Pittsburgh
AMETEK Land, Inc.
Tel: [phone]
China
AMETEK Land China Service
Tel: [phone] ext 122
India
AMETEK Land India Service
Tel: +91 - 80 67823240
Email: [email protected]
Web: www.ametek-land.com
For further details on all AMETEK Land oces, distributors and representatives, please visit our website.
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 for details of the
correct returns procedure.
Any item returned to AMETEK Land 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.
Registered ISO 9001 Management System approvals apply in the USA.
UK Calibration Laboratory: UKAS 0034.
USA Calibration Laboratory: ANAB Accredited ISO/IEC 17025.
National Accreditation Board for Testing and Calibration Laboratories approvals apply in India.
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, pneumatic, software or rmware components of this system. Such
changes may also invalidate the standard terms of warranty.
Copyright
This manual is provided as an aid to owners of AMETEK Land’s products and contains information
proprietary to AMETEK Land. This manual may not, in whole or part, be copied, or reproduced without the
expressed written consent of AMETEK Land.
Copyright © 2018 Land Instruments International.
MARCOM0311, Issue 10, 13 June 2018

Thermometer User Guide

User Guide Thermometer
Contents
1 Introduction 1
1.1 About this guide 1
1.2 About the thermometer 1
1.3 About UNO 1
1.4 Unpacking the thermometer 1
1.5 Nomenclature 2
2 Specications 3
2.1 U1 Series Thermometers 3
2.2 U2 Series Thermometers 4
2.3 U4 Series Thermometers 5
2.4 U5 Series Thermometers 6
2.5 U6 Series Thermometers 7
2.6 U8 Series Thermometers 8
2.7 V1 Series Thermometers 9
3 Installing the Thermometer 10
3.1 Choosing a location for the thermometer 10
4 Using the Thermometer 12
4.1 Removing the chassis from the thermometer cover 12
4.2 Location of controls 13
4.3 Setting the Emissivity/Non Greyness value 14
4.4 Setting the Time Functions 15
4.5 Note your settings 17
4.6 Retting the chassis into the thermometer cover 18
4.7 Focusing the lens on the target 18
4.8 Electrical Connections 20
5 Emissivity tables 24
5.1 Refractories 24
5.2 Alloys 24
5.3 Metals 25
5.4 Miscellaneous 26
6 Maintenance 27

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

Page 1
User Guide Thermometer
1 Introduction
1.1 About this guide
This guide gives the information necessary for you to operate a LAND UNO
thermometer. Basic information regarding installation is contained within the
Installation Guide.
1.2 About the thermometer
The LAND UNO thermometer is a highly accurate, focusable, non contact
thermometer designed for independent or STAND ALONE use.
The thermometer features include:
• Stand Alone operation.
• Built in Averager or Peak Picker for signal conditioning.
• Focusable optical system with through-the-lens sighting to give precise
target denition.
• 4 to 20mA output, linear over the temperature span of the thermometer.
• Built in Emissivity or Non Greyness controls.
1.3 About UNO
The LAND UNO range of high accuracy thermometers and rugged mounting
accessories is designed to provide precise, non contact temperature
measurement.
Internal controls for emissivity or non greyness, together with selectable
time functions, allow the thermometer to be congured to suit a wide range
of industrial applications. A comprehensive range of mountings is common
to other LAND products maximising commonality and simplifying system
upgrades.
1.4 Unpacking the thermometer
The package containing the thermometer will contain the following items:
• CD containing UNO User Documentation.
• UNO thermometer (tted with protection caps on the lens and eyepiece).
• Eye comfort lter. Fitted only to instruments where the temperature
range exceeds 1600°C/2900°F.
• The thermometer will be supplied pre-tted with either a Standard lens
(denoted VG/VC) or a Short Focus lens (denoted SG/SF).
• 2.5mm Hex screwdriver.
• 2.5mm at blade screwdriver.
It is recommended that the front lens protection cap is kept attached until the
thermometer is installed and that the eyepiece cap continues to be used after
installation.

Page 2
Thermometer User Guide
Fig. 3 UNO Thermometer Nomenclature UN970313
1.5 Nomenclature
The thermometer detail label is on the rear face of the thermometer above
the eyepiece. The thermometer instrument type nomenclature is explained in
Fig. 3.
Make a note of your thermometer’s instrument type and serial number in the
space provided below.
Instrument type:
Serial Number:
Silicon cell (1µm)
Germanium cell (1.6µm)
Lead Sulphide cell (2.4µm)
Thermopile (4.8 to 5.2µm)
1
2
4
5
Lead Selenide cell (3 to 5µm)
Thermopile (8 to 14µm)
6
8
Wavelength
Minimum temperature
Single wavelength
Ratio
U
V
Thermometer Series
U 1 6 0 0 1 6 0 0 C V
Maximum temperature
Degrees Celsius
Degrees Fahrenheit
C
F
Units
Variable Focus (Standard)
Short Variable Focus
Fibroptic
V
S
L
Optics

Page 3
User Guide Thermometer
2 Specifications
2.1 U1 Series Thermometers
Thermometer Model U1 600/1600C U1 1100/2900F U1 800/2600C U1 1500/4700F
Temperature Range: 600 to 1600°C 1100 to 2900°F 800 to 2600°C 1500 to 4700°F
Wavelength: 1µm
Averager Response: Adjustable 5ms to 5s (0 to 95%)
Peak Picker: 1.5 to 30%/s decay
Emissivity: 0.10 to 1.00
Sighting: 6° through the lens
Target Size: >98% of energy within graticule
Magnication: 1.8x
Eye Relief: 30mm (1.2in)
Field of View (Nominal): 100:1 200:1
Focus Range
Standard: 0.5m (19.7in) to innity
Short Variable Focus: 0.35m to 1.0m (13.6in to 39.3in)
Min. Target Diameter: 3.5mm (0.13in) 1.8mm (0.07in)
Accuracy
Repeatability: <1°C / 2°F <2°C / 4°F
Absolute: 0.75%K 0.75%K
Stability (Temperature): 0.2°/° ambient 0.3°/° ambient
Stability (Time): 2°C / 4°F per year
Vibration: 3G any axis 10 to 300 Hz
Humidity: 0 to 99% non condensing
Sealing: To IP65
Ambient Temperature
Specied: 0 to 70°C / 32 to 158°F
Operating: -10 to 80°C / 14 to 176°F
CE EN 50-082-2 (immunity) EN 50-081-1 (emission) IEC 1010 (safety)

Page 4
Thermometer User Guide
2.2 U2 Series Thermometers
Thermometer Model U2 300/1100C U2 600/2000F
Temperature Range: 300 to 1100°C 600 to 2000°F
Wavelength: 1.6µm
Averager Response: Adjustable 5ms to 5s (0 to 95%)
Peak Picker: 1.5 to 30% /s decay
Emissivity: 0.10 to 1.00
Sighting: 6° through the lens
Target Size: >98% of energy within graticule
Magnication: 1.8x
Eye Relief: 30mm / 1.2in
Field of View (Nominal): 100:1
Focus Range
Standard: 0.5m / 19.7in to innity
Short Variable Focus: 0.35m to 1.0m / 13.6in to 39.3in
Min. Target Diameter: 3.5mm / 0.13in
Accuracy
Repeatability: 1°C / 2°F
Absolute: <1%K
Stability (Temperature): 0.2°/° ambient
Stability (Time): <2°C / 4°F per year
Vibration: 3G any axis 10 to 300 Hz
Humidity: 0 to 99% non condensing
Sealing: IP65
Ambient Temperature
Specied: 0 to 50°C / 32 to 122°F
Operating: -10 to 60°C / 14 to 140°F
CE EN 50-082-2 (immunity) EN 50-081-1 (emission) IEC 1010 (safety)

Page 5
User Guide Thermometer
2.3 U4 Series Thermometers
Thermometer Model U4 50/250C U4 150/500F U4 150/550C U4 300/1000F
Temperature Range: 50 to 250°C 150 to 500°F 150 to 550°C 300 to 1000°F
Wavelength: 2.4µm
Averager Response: Adjustable 5ms to 5s (0 to 95%)
Peak Picker: 1.5 to 30% /s decay
Emissivity: 0.10 to 1.00
Sighting: 6° through the lens
Target Size: >98% of energy within graticule
Magnication: 1.8x
Eye Relief: 30mm (1.2in)
Field of View (Nominal): 30:1 100:1
Focus Range
Standard: 0.5m / 19.7in to innity
Short Variable Focus: 0.35m to 1.0m / 13.6in to 39.3in
Min. Target Diameter: 11.7mm / 0.46in 3.5mm / 0.13in
Accuracy
Repeatability: <1°C / 2°F <2°C / 4°F
Absolute: 0.9%K 1%K
Stability (Temperature): <0.1°/° ambient
Stability (Time): 2°C / 4°F per year
Vibration: 0.5mm from 10 to 60Hz, 3G from 10 to 300 Hz, Any axis
Humidity: 0 to 99% non condensing
Sealing: IP65
Ambient Temperature
Specied: 5 to 45°C / 41 to 113°F
Operating: 0 to 50°C / 32 to 122°F
CE EN 50-082-2 (immunity) EN 50-081-1 (emission) IEC 1010 (safety)

Page 6
Thermometer User Guide
2.4 U5 Series Thermometers
Thermometer Model U5 400/1300C U5 750/2400F U5 1000/2500C U5 1800/4500F
Temperature Range: 400 to 1300°C 750 to 2400°F 1000 to 2500°C 1800 to 4500°F
Wavelength: 4.8 to 5.2µm
Averager Response: 100ms to 5s (to 95%)
Peak Picker: 1.5 to 30%/s decay
Emissivity: 0.10 to 1.00
Sighting: 6° through the lens
Target Size: >98% of energy within graticule
Magnication: 1.8x
Eye Relief: 30mm / 1.2in
Field of View (Nominal): 100:1
Focus Range
Standard: 0.5m / 19.7in to innity
Short Variable Focus: 0.35m to 1.0m / 13.6in to 39.3in
Min. Target Diameter: 3.5mm (0.13in)
Accuracy
Repeatability: <2°C / 4°F <1°C / 2°F
Absolute: 0.6%K 0.6%K
Stability (Temperature): 0.025%°T(K)/°C ambient
Stability (Time): 2°C / 4°F per year
Vibration: 3G any axis 10 to 300 Hz
Humidity: 0 to 99% non condensing
Sealing: IP65
Ambient Temperature
Specied: 0 to 70°C / 32 to 158°F
Operating: -10 to 80°C / 14 to 176°F
CE EN 50-082-2 (immunity) EN 50-081-1 (emission) IEC 1010 (safety)

Page 7
User Guide Thermometer
2.5 U6 Series Thermometers
Thermometer Model U6 0/300C-V U6 100/700C-V
Temperature Range: 0 to 300°C 100 to 700°C
Wavelength: 3 to 5µm
Averager Response: Adjustable 100ms to 5s (0 to 95%)
Peak Picker: 1.5 to 30% /s decay
Emissivity: 0.10 to 1.00
Sighting: 6° through the lens
Target Size: >98% of energy within graticule
Magnication: 1.8x
Eye Relief: 30mm / 1.2in
Field of View (Nominal): 30:1 100:1
Focus Range
Standard: 0.5m / 19.7in to innity
Short Variable Focus: 0.35m to 1.0m / 13.6in to 39.3in
Min. Target Diameter: 16.6mm / 0.65in 5mm / 0.2in
Accuracy
Repeatability: 1°C / 2°F
Absolute: 0.3%K + 2.5K 0.3%K + 2K
Stability (Temperature): <0.15K/K <0.2K/K
Stability (Time): 2°C / 4°F per year
Vibration: 3G any axis 10 to 300 Hz
Humidity: 0 to 99% non condensing
Sealing: IP65
Ambient Temperature
Specied: 0 to 45°C / 32 to 113°F
Operating: 5 to 45°C / 41 to 113°F
CE EN 50-082-2 (immunity) EN 50-081-1 (emission) IEC 1010 (safety)

Page 8
Thermometer User Guide
2.6 U8 Series Thermometers
Thermometer Model U8 0/1000C-V
Temperature Range: 0 to 1000°C
Wavelength: 8 to 14µm
Averager Response: Adjustable 100ms to 5s (0 to 95%)
Peak Picker: 1.5 to 30% /s decay
Emissivity: 0.10 to 1.00
Sighting: 6° through the lens
Target Size: >98% of energy within graticule
Magnication: 1.8x
Eye Relief: 30mm / 1.2in
Field of View (Nominal): 100:1
Focus Range
Standard: 0.5m / 19.7in to innity
Short Variable Focus: 0.35m to 1.0m / 13.6in to 39.3in
Min. Target Diameter: 5mm / 0.2in
Accuracy
Repeatability: 1°C / 2°F
Absolute: 1%K + 1K
Stability (Temperature): <0.3K/K
Stability (Time): 2°C / 4°F per year
Vibration: 3G any axis 10 to 300 Hz
Humidity: 0 to 99% non condensing
Sealing: IP65
Ambient Temperature
Specied: 0 to 45°C / 32 to 113°F
Operating: 5 to 45°C / 41 to 113°F
CE EN 50-082-2 (immunity) EN 50-081-1 (emission) IEC 1010 (safety)

Page 9
User Guide Thermometer
2.7 V1 Series Thermometers
Thermometer Model V1 600/1600C V1 1100/2900F V1 1000/2600C V1 1800/4700F
Temperature Range: 600 to 1600°C 1100 to 2900°F 1000 to 2600°C 1800 to 4700°F
Wavelength: 0.85 to 1.1µm
Averager Response: Adjustable 15ms to 5s (0 to 95%)
Peak Picker: 1.5 to 30%/s decay
Non Greyness: 0.8 to 1.199
Sighting: 6° through the lens
Target Size: >98% of energy within graticule
Magnication: 1.8x
Eye Relief: 30mm (1.2in)
Field of View (Nominal): 50:1 200:1
Focus Range
Standard: 0.5m (19.7in) to innity
Short Variable Focus: 0.35m to 1.0m (13.6in to 39.3in)
Min. Target Diameter: 7.0mm / 0.27in 1.8mm / 0.07in
Accuracy
Repeatability: <1°C / 2°F <2°C / 4°F
Absolute: 0.75%K 0.75%K
Stability (Temperature): 0.2°/° ambient 0.3°/° ambient
Stability (Time): 2°C / 4°F per year
Vibration: 3G any axis 10 to 300 Hz
Humidity: 0 to 99% non condensing
Sealing: To IP65
Ambient Temperature
Specied: 0 to 50°C / 32 to 122°F
Operating: -10 to 60°C / 14 to 140°F
CE EN 50-082-2 (immunity) EN 50-081-1 (emission) IEC 1010 (safety)

Page 10
Thermometer User Guide
3 Installing the Thermometer
This section contains similar information to the thermometer Installation
Guide.
If the thermometer is to be used in conjunction with a protection jacket and
air purge, refer to the installation guides provided with those accessories.
If the thermometer is to be installed in a location where the ambient
temperature is within the ranges specied for the thermometer, and no air
purging is required to keep the lens clean, the thermometer can be mounted
using the two tapped holes on the mounting pad. Either hole can be used for
direct tripod mounting.
3.1 Choosing a location for the thermometer
If your thermometer is an ‘U’ series thermometer (e.g. U1 600/1600C),
it must be positioned such that, at the chosen target distance, the target
is large enough to completely ll the area covered by the graticule of the
eyepiece (Refer to Section 3.1.1). The thermometer’s view of the target area
must not be obstructed.
If your thermometer is a ‘V’ series thermometer (e.g. V1 1000/2600C),
it is not essential for the target to completely ll the area covered by the
graticule.
The overall dimensions of the thermometer installation are given in Fig. 4.
3.1.1 Target size calculation
There are two types of lens available for use with the UNO thermometer.
Standard lens: Focusable from 500mm to innity denoted [VG/VC]
Short focus lens: Focusable from 350mm to 1000mm denoted [SG/SF]
For both lenses, the target area is dened as the area covered by the graticule.
To calculate the minimum target size at any distance, refer to Fig. 5.

Page 11
User Guide Thermometer
Fig. 4 Thermometer installation dimensions S4970225
Ensure that the thermometer has an
unobstructed view of the target
Target Size ( d )
Target Distance ( s )
Fig. 5 Target size calculation S4970226
Target Size ( d ) = Target Distance ( s )
FOV*
* FOV - Refer to your thermometer’s specication for this value.
i.e. If the Field of view is 100:1, use ‘100’ for the FOV value.
Allow 480mm/19.0in. for sighting access80mm/3.2in
114mm/4.5in
Mounting Pad: 2 holes, ¼in BSW,
7mm/0.3in deep on 25mm/0.98in centres

Page 12
Thermometer User Guide
4 Using the Thermometer
Before nal installation of the thermometer, the internal controls (i.e. Emis-
sivity, Averager response speed or Peak picker decay rate) must be set to
match the particular measurement location.
This involves removing the internal chassis from the thermometer cover.
4.1 Removing the chassis from the thermometer cover
Caution
Ensure that the thermometer is disconnected from the power supply
before removing the chassis from the cover.
Ensure that the thermometer is dismantled in a clean laboratory or of-
ce environment.
1) Refer to Fig. 6. Use the 2.5mm Hex screw driver to loosen each of the
four captive screws (A) in turn, a little at a time, until they are out of the
thermometer cover.
2) Slide the chassis out of the thermometer cover.
TYPE: U1 1100/2900F V
SERIAL No. 0000000/00/00
MADE IN ENGLAND
Fig. 6 Location of thermometer cover securing screws UN970314

Page 13
User Guide Thermometer
4.2 Location of controls
The Emissivity/Non greyness and Peak Picker/Averager control switches are
located on the left hand circuit board (When viewing the thermometer from
the rear). See Fig. 7.
Note
The 4-way switch, SW1, is tted in V series (i.e. ratio) thermometers
only.
Protection sleeve Control switches'O' ring Gasket
Fig. 7 Location of internal control switches UN970315

Page 14
Thermometer User Guide
4.3 Setting the Emissivity/Non Greyness value
4.3.1 U series thermometers
In U series (i.e. single wavelength) thermometers, the emissivity value is set
using switches SW2 and SW3. Refer to Fig. 8.
The emissivity can be set in the range 0.10 to 1.09 in steps of 0.01.
When switch SW2 is set from 1 to 9, this denotes the rst gure after the
decimal point of the emissivity value. e.g. for an emissivity value of '0.83', set
SW2 to '8' and SW3 to'3'.
When switch SW2 is set to 0, this denotes a '1' before, and a '0' after, the
decimal point of the emissivity value.
e.g. for an emissivity value of '1.00', set SW2 to '0' and SW3 to '0'.
Switches Emissivity SW2 SW3
0.10 1 0
0.80 8 0
0.83 8 3
0.95 9 5
1.00 0 0
1.09 0 9
Fig. 8 Emissivity setting for ‘U’ series thermometers
Note
An emissivity value of above 1.00 is not common in the majority of
measurement applications.
4.3.2 V series thermometers
In V series (i.e. ratio) thermometers, the non greyness value is set using
switches SW1, SW2 and SW3. Refer to Fig. 9.
The non greyness can be set in the range 0.800 to 1.199 in steps of 0.001.
The setting of switch SW1 denotes the rst gure after the decimal point of
the non greyness value. However, if SW1 is set to either ‘0’ or ‘1’, this de-
notes a ‘1’ before, and either a ‘0’ or ‘1’ (respectively) after the decimal point
of the non greyness value.
e.g. For a non greyness value of ‘0.995’:
set SW1 to ‘9’, SW2 to ‘9’ and SW3 to ’5’.
For a non greyness value of ‘1.199’:
set SW1 to ‘1’, SW2 to ‘9’ and SW3 to ’9’.
SW2 SW3
SW4 SW5
SW1