AST A150 User manual

AST A150
USER MANUAL
Accurate Sensors Technologies
Non-contact Infrared Pyrometers
We measure accurate temperature in extreme conditions
AST - Accurate Sensors Technologies
Misgav Industrial Park, Misgav 20173, Israel
Tel: [phone], Fax: [phone]
Email: [e-mail]
Web: www.accuratesensors.com
(H)Relative energy(for two color pyrometer) The relative energy shows a signal weakening which can be caused by
contaminations of the optics or a viewing window or by dust in the field of view or a too small measuring object.
Relative energy shows the measured intensity compared to the intensity, a black body radiation source would have
at a determined ratio temperature of the pyrometer.
(I)Analog Range User can select the analog range from the option 4-20mA, 0-20 mA & 0-10V.
(J)Comm. Mode User can select the communication mode as per requirement [RS-232 / RS-485].
Note: For connection diagram from RS-232 to RS-485 & RS-485 to RS-232 Refer Page No:-9
To view parameters of multiple devices select the pyrometer name from the drop down list that appears at the top of
the screen.
Accurate Sensors Technologies
16
(lll) Reset Below Temperature(RBT) The user can set RBT within the limit of pyrometer sub range. This function sets
the temperature above which peak picker action starts. When the target temperature matches or is below the
selected value, the sensor indicates temperature without picking action.
Temp
Time
Without RBT
Temp
Time
RBT
RBT with Decay Rate

Index
1. Chapter - 1
General information
2. Chapter - 2 ....................................................................................................................... 2
Introduction
2.1 Application, range and working principle
2.2 Technical specification
2.3 Optics
3. Chapter - 3 ....................................................................................................................... 5
Installation of pyrometer
3.1 Installation
3.1.1 Location selection
3.1.2 Correct positioning of pyrometer
3.1.3 Mounting of pyrometer
3.1.4 Ambient temperature
3.1.5 Atmospheric condition
3.2 Mechanical accessories
3.3 Electrical installation
3.3.1 Connector pin assignment on the back of the pyrometer
3.3.2 Converter RS-232 ↔ RS-485
3.3.3 Display instrument
3.3.4 Display & parameterizer
4. Chapter - 4 ....................................................................................................................... 11
Software installation
4.1 Installation
4.2 Parameters in main screen.
6. Chapter - 6 ....................................................................................................................... 22
Calculate Spot size
7. Chapter - 7 ....................................................................................................................... 23
Serial communication protocol
....................................................................................................................... 1
5. Chapter - 5 ....................................................................................................................... 18
Android Application Software
5.1 Installation Process
5.2 Communication
5.3 Operation
5.4 Datalogging & Online graph
(H)Relative energy(for two color pyrometer) The relative energy shows a signal weakening which can be caused by
contaminations of the optics or a viewing window or by dust in the field of view or a too small measuring object.
Relative energy shows the measured intensity compared to the intensity, a black body radiation source would have
at a determined ratio temperature of the pyrometer.
(I)Analog Range User can select the analog range from the option 4-20mA, 0-20 mA & 0-10V.
(J)Comm. Mode User can select the communication mode as per requirement [RS-232 / RS-485].
Note: For connection diagram from RS-232 to RS-485 & RS-485 to RS-232 Refer Page No:-9
To view parameters of multiple devices select the pyrometer name from the drop down list that appears at the top of
the screen.
Accurate Sensors Technologies
16
(lll) Reset Below Temperature(RBT) The user can set RBT within the limit of pyrometer sub range. This function sets
the temperature above which peak picker action starts. When the target temperature matches or is below the
selected value, the sensor indicates temperature without picking action.
Temp
Time
Without RBT
Temp
Time
RBT
RBT with Decay Rate

We are pleased that you have chosen this high quality and highly efficient AST pyrometer for non-contact
temperature measurement.
Please read this manual carefully, step by step before performing any operation with the Pyrometer. It
contains all the necessary instructions for set up and operation of the pyrometer. When operating the instrument, it
is necessary to follow the general safety instructions.
1.1 Safety Measures
This section provides an overview about important safety regulations.
1.1.1 General
Each person working with the pyrometer must have read the user manual before operation. The Pyrometer
has only to be used for the purpose described in the manual.
1.1.2 Safety Precaution
The Pyrometer works only with a potential-free low voltage of range 24V DC. This voltage is not harmful for
the user.
1.1.3 Maintenance and use of Pyrometer
Pyrometer can be operated by the qualified person who has got instructions from the supervisor. It is strongly
prohibited to do technical modifications of the device without permission of the manufacturer.
1.1.4 Environmental Protection
The lens or its coating may contain harmful materials and hence it should not be disposed of with normal
waste.
1.1.5 Packaging and storage
Always use a shock-proof package for shipment of the pyrometer. It should be sealed to protect it against
humidity. Also protect the lens of the pyrometer with a cover. They should be stored at the temperature ranges from
-20° to +70° C.
1.1.6 Warranty
AST A150 instruments have a warranty of two years from the invoice date. AST will replace defective parts,
which arises from design errors or manufacturing faults. In case, if pyrometer is opened, disassembled or modified
then the guarantees will loss.
AST does not accept liability for any damage or losses which might occur, including consequential damages
and financial losses, as a result of use of the equipment.
1.1.7 Copyright ©
© All rights reserved. This document may contain proprietary information and shall be respected as a
proprietary document to AST with permission for review and usage given only to the rightful owner of the
equipment with which this document is associated.
Chapter - 1
General Information
1
(H)Relative energy(for two color pyrometer) The relative energy shows a signal weakening which can be caused by
contaminations of the optics or a viewing window or by dust in the field of view or a too small measuring object.
Relative energy shows the measured intensity compared to the intensity, a black body radiation source would have
at a determined ratio temperature of the pyrometer.
(I)Analog Range User can select the analog range from the option 4-20mA, 0-20 mA & 0-10V.
(J)Comm. Mode User can select the communication mode as per requirement [RS-232 / RS-485].
Note: For connection diagram from RS-232 to RS-485 & RS-485 to RS-232 Refer Page No:-9
To view parameters of multiple devices select the pyrometer name from the drop down list that appears at the top of
the screen.
Accurate Sensors Technologies
16
(lll) Reset Below Temperature(RBT) The user can set RBT within the limit of pyrometer sub range. This function sets
the temperature above which peak picker action starts. When the target temperature matches or is below the
selected value, the sensor indicates temperature without picking action.
Temp
Time
Without RBT
Temp
Time
RBT
RBT with Decay Rate

AST A150 model provides the advantage of non - contact temperature measurement of metallic surfaces,
graphite and ceramics. This instrument is designed for easy integration into standard 4 wire system. This format
combines the high accuracy of digital signal processing with the simple connection. The A150 pyrometer is used for
target temperature ranging from 75°C to 700°C.The electronic assembly is protected by IP65 rugged stainless steel
housing.
2.1 Application, Range and Working Principle
The applications in which AST pyrometers can be used are:
Standard Item supplied with AST A150 :-
1. AST pyrometer
2. Connection cable 12-core (length - 5 m)
3. Digital cable 3-core (length - 1.5 m)
4. USB Cable
5. AST software CD
6. Manual
7. Certificate of calibration
AST A150 is a specially designed highly accurate digital pyrometer operating at the near end of the infrared
spectrum and is therefore an excellent choice for measurement of ferrous and non ferrous metals above 100°C
because the emissivity of un-oxidized metal surfaces is higher at shorter wavelengths. The emissivity, analog output
sub-range, response time and peak picker can be preset ex-works or adjusted through software. This enables the
instrument to be adapted for various measuring tasks.
AST A150 is provided with USB 2.0 connector with cable. The pyrometer can be powered through USB port. In this
case no external power supply is required (+24V DC requires for operation of analog output, laser, RS- 232 / RS-485
output )
This pyrometer has solid body in stainless steel housing which provides high operation safety even in rough
industrial environment. Variety of working Distances with fixed focus available for different applications.
lInduction Heating
lCasting
lAnnealing
lWelding
lForging
lSintering
lMelting
lRolling mills
lHardening
2
Chapter-2
Introduction
118.00 mm
34.50 mm
Ø49.50 mm
Ø48.00 mm
Binder
Connector
AST A150
14.00 mm
(H)Relative energy(for two color pyrometer) The relative energy shows a signal weakening which can be caused by
contaminations of the optics or a viewing window or by dust in the field of view or a too small measuring object.
Relative energy shows the measured intensity compared to the intensity, a black body radiation source would have
at a determined ratio temperature of the pyrometer.
(I)Analog Range User can select the analog range from the option 4-20mA, 0-20 mA & 0-10V.
(J)Comm. Mode User can select the communication mode as per requirement [RS-232 / RS-485].
Note: For connection diagram from RS-232 to RS-485 & RS-485 to RS-232 Refer Page No:-9
To view parameters of multiple devices select the pyrometer name from the drop down list that appears at the top of
the screen.
Accurate Sensors Technologies
16
(lll) Reset Below Temperature(RBT) The user can set RBT within the limit of pyrometer sub range. This function sets
the temperature above which peak picker action starts. When the target temperature matches or is below the
selected value, the sensor indicates temperature without picking action.
Temp
Time
Without RBT
Temp
Time
RBT
RBT with Decay Rate

2.2 Technical Specifications
Note: - After power supply initialization, keep pyrometer under stable temperature condition for
25-30 minutes to get above stated accuracy.
Laser should be used only for targeting purpose. In normal measuring laser should be
turned off to get correct measurements.
3
Measured Temperature Ranges
(sub range adjustable)
Spectral Range, µm
Photodetector Type
Response Time
Emissivity
Distance to Spot size Ratio
Model AST A150
75°C - 700°C
2 to 2.6 µm (peak at 2.3 µm)
Extended InGaAs
2msec. Adjustable upto 10 sec
0.1….1 Adjustable
Digital Output
Analog Output
Bluetooth V2.0, RS-232 or RS-485 (Isolated), User Selectable
4-20mA or 0-20mA or 0-10 V, User selectable
Sighting Laser pilot light (PL)
Operating temperature range 0°C........+70°C, 0°C........+200°C (With cooling jacket)
Protection class IP 65
Isolation Power supply and digital output and analog output are galvanically
isolated against each other
Operating humidity
Dimensions/Weight
Adjustable Parameters via software
Unlimited
Dia. = Ø49.5 mm; Length = 118 mm / Weight = 0.6 kg
Response time, Peak picker, Analog output type, sub-range,
emissivity, interval of data storage etc.
50 : 1 (75°C - 700°C)
Power 24V DC ±1V, Ripple must be less than 50 mV
Laser Power <1mW
Storage temprature -20°........+70°C
Repeatability 0.1% reading in °C + 1°C(Ɛ = 1, t90 = 1s, T amb. = 30°C)
Uncertainty
Up to 400°C: 3°C
above 400°C: 0.5% of measured value in °C + 1°C
(Ɛ = 1, t 90 = 1 s, T amb. = 30°C; the pyrometer must be operate at least 30
min before these value are valid)
(H)Relative energy(for two color pyrometer) The relative energy shows a signal weakening which can be caused by
contaminations of the optics or a viewing window or by dust in the field of view or a too small measuring object.
Relative energy shows the measured intensity compared to the intensity, a black body radiation source would have
at a determined ratio temperature of the pyrometer.
(I)Analog Range User can select the analog range from the option 4-20mA, 0-20 mA & 0-10V.
(J)Comm. Mode User can select the communication mode as per requirement [RS-232 / RS-485].
Note: For connection diagram from RS-232 to RS-485 & RS-485 to RS-232 Refer Page No:-9
To view parameters of multiple devices select the pyrometer name from the drop down list that appears at the top of
the screen.
Accurate Sensors Technologies
16
(lll) Reset Below Temperature(RBT) The user can set RBT within the limit of pyrometer sub range. This function sets
the temperature above which peak picker action starts. When the target temperature matches or is below the
selected value, the sensor indicates temperature without picking action.
Temp
Time
Without RBT
Temp
Time
RBT
RBT with Decay Rate

2.3 Optics
The pyrometer measure temperature by receiving heat radiation from the object whose temperature has to be
measured. This heat radiation is passes through the lens to the sensor and is then converted to an electrical
signal. The farther the measured object is from the pyrometer, the larger the area that will be measured by the
pyrometer. Depending on customer need, the pyrometer is designed wit h fixed optics.
Some fixed optics focus is as below: -
4
distance (WD) mentioned on the
pyrometer.
If the pyrometer is not
installed at manufactured working
distance (WD) then spot size at
actual installed distance should be
calculated. For example, if factory
made working distance in 500mm
(FOV 50 : 1, Optics 500), then spot
size is 10mm (as given in figure). If
user installed this pyrometer at
800mm, user have to calculate by
the given method below.
* Manufactured working
Case-I: If installed working distance is greater than manufactured working distance
Installed Spot Size = Installed working distance (Case I)
WD x (S + A) - A
Case-II: If installed working distance is smaller than manufactured working distance
Installed Spot Size = Installed working distance (Case II)
WD x (S - A) + A
A
WD
(Case I)*
*Installed Working Distance
(Case II)*
Defocused Spot Ø
focused Spot Ø (S)
Pyrometer object
lens
Manufactured working
distance WD (mm) 350 500 700 Aperture(A) 800 1000 1500 2000 2500 3000 5000
7 10 14 16 20 30 40 50 60 100 18
Spot Size
(50:1)
(mm)
21
700
Spot Size (mm)
Distance (mm)
Optics 500
13 10 16 38
300 500 600 1000
(H)Relative energy(for two color pyrometer) The relative energy shows a signal weakening which can be caused by
contaminations of the optics or a viewing window or by dust in the field of view or a too small measuring object.
Relative energy shows the measured intensity compared to the intensity, a black body radiation source would have
at a determined ratio temperature of the pyrometer.
(I)Analog Range User can select the analog range from the option 4-20mA, 0-20 mA & 0-10V.
(J)Comm. Mode User can select the communication mode as per requirement [RS-232 / RS-485].
Note: For connection diagram from RS-232 to RS-485 & RS-485 to RS-232 Refer Page No:-9
To view parameters of multiple devices select the pyrometer name from the drop down list that appears at the top of
the screen.
Accurate Sensors Technologies
16
(lll) Reset Below Temperature(RBT) The user can set RBT within the limit of pyrometer sub range. This function sets
the temperature above which peak picker action starts. When the target temperature matches or is below the
selected value, the sensor indicates temperature without picking action.
Temp
Time
Without RBT
Temp
Time
RBT
RBT with Decay Rate

5
Chapter-3
Installation of the Pyrometer
3.1 Installation
3.1.1 Location selection
Qualified operating personnel should do the installation. Location should be good enough so that pyrometer
should get continuous infrared radiation.
Pyrometer distance from object is according to below points:-
1. Pyrometer spot size should be small than object size.
2. Know your pyrometer spot size according to point 2.3.
3. Pyrometer ambient temperature should be within 0° to 70°C (read 3.1.4).
3.1.2 Correct Positioning of the pyrometer
With pilot light (PL)
A laser targeting light will help to correct the position of the pyrometer. It is recommended that laser should
be switched off while measurement. It will increase the life of laser. To avoid measuring errors caused by a too big
spot size the pyrometer must be fixed in the correct measuring distance, so that the object under measurement fills
the spot size.
Note: The laser spot (PL) is only for indication of measuring spot, not exactly shows the measuring area.
3.1.3 Mounting of pyrometer
To install the sensor head at the place of measurement a mounting support is supplied as an accessory,
after losing the clamp screws, it can be fastened correctly.
3.1.4 Ambient temperature
The allowed operation temperature for the pyrometer is 0°C to +70°C. But the temperature at fiber optic &
optical head is 250°C max. Therefore if sensor head is to be used above 250°C water cooling jacket with built in
air purge unit is used otherwise it may damage the pyrometer. The ambient temperature is dependent on the
temperature and flow rate of cooling water. Details of air purge & water cooling jacket is given in point 3.2.
3.1.5 Atmospheric conditions
The pyrometer cannot receive the full infrared energy for the measurement if atmospheric
conditions like smoke, dust or steam are present and hence it result in measuring error. An air purge unit can be
helpful to avoid contamination such as dust and humidity on the lens. The air supplied should be at normal
temperature with oil & moisture free. The air purge generates an air stream shaped like a cone and blows particles
from the lens area.
(H)Relative energy(for two color pyrometer) The relative energy shows a signal weakening which can be caused by
contaminations of the optics or a viewing window or by dust in the field of view or a too small measuring object.
Relative energy shows the measured intensity compared to the intensity, a black body radiation source would have
at a determined ratio temperature of the pyrometer.
(I)Analog Range User can select the analog range from the option 4-20mA, 0-20 mA & 0-10V.
(J)Comm. Mode User can select the communication mode as per requirement [RS-232 / RS-485].
Note: For connection diagram from RS-232 to RS-485 & RS-485 to RS-232 Refer Page No:-9
To view parameters of multiple devices select the pyrometer name from the drop down list that appears at the top of
the screen.
Accurate Sensors Technologies
16
(lll) Reset Below Temperature(RBT) The user can set RBT within the limit of pyrometer sub range. This function sets
the temperature above which peak picker action starts. When the target temperature matches or is below the
selected value, the sensor indicates temperature without picking action.
Temp
Time
Without RBT
Temp
Time
RBT
RBT with Decay Rate

6
Air Purge Unit
(Reference no: 8000-04)
3.2 Mechanical accessories
Water pressure : < 10 bar
Air pressure : < 0.5 bar
Air consumption : 2...3 m³/h
Ambient temperature : < 200°C
Metal : Stainless steel
Weight : 2.75 Kg
Water Cooling Jacket with Adjustable Flange PL
(Reference no: 8000-02)
M40 x 1.5
60
48
156
80
287
54 75
18
24.50
Ø68
Ø63
Ø20
30.60 Grub Screw for
fixing Pyrometer
For 6 mm inside
Diameter hose
Adjustable Mounting Stand
(Reference no: 8000-07)
60°
R30
75
60
5
110
60 66
86
3 x M6 THRU AT 120°
Air pressure : < 0.5 bar
Air consumption : 2...3 m³/h
Metal : Aluminium
Weight : 0.15 Kg
Dry, clean air (Oil and dust free)
Metal : Stainless Steel
Weight : 0.9 Kg
(H)Relative energy(for two color pyrometer) The relative energy shows a signal weakening which can be caused by
contaminations of the optics or a viewing window or by dust in the field of view or a too small measuring object.
Relative energy shows the measured intensity compared to the intensity, a black body radiation source would have
at a determined ratio temperature of the pyrometer.
(I)Analog Range User can select the analog range from the option 4-20mA, 0-20 mA & 0-10V.
(J)Comm. Mode User can select the communication mode as per requirement [RS-232 / RS-485].
Note: For connection diagram from RS-232 to RS-485 & RS-485 to RS-232 Refer Page No:-9
To view parameters of multiple devices select the pyrometer name from the drop down list that appears at the top of
the screen.
Accurate Sensors Technologies
16
(lll) Reset Below Temperature(RBT) The user can set RBT within the limit of pyrometer sub range. This function sets
the temperature above which peak picker action starts. When the target temperature matches or is below the
selected value, the sensor indicates temperature without picking action.
Temp
Time
Without RBT
Temp
Time
RBT
RBT with Decay Rate

7
3.3. Electrical Accessories
Power Supply Unit
(Reference no: 9000-02)
AST A150 is powered by 24V DC (well stabilized ripple max
50mV).The input power supply is 110/230v AC check the polarity
before connecting the device
3.3.1 Connector pin assignment on the back of the pyrometer
RS-232 Connection
12-Core Cable
(Reference no: 7002-02)
Mounting Clamp
(Reference no: 8000-05)
110
70
50
70
3
Metal : Stainless Steel
Weight : 0.45 Kg
(H)Relative energy(for two color pyrometer) The relative energy shows a signal weakening which can be caused by
contaminations of the optics or a viewing window or by dust in the field of view or a too small measuring object.
Relative energy shows the measured intensity compared to the intensity, a black body radiation source would have
at a determined ratio temperature of the pyrometer.
(I)Analog Range User can select the analog range from the option 4-20mA, 0-20 mA & 0-10V.
(J)Comm. Mode User can select the communication mode as per requirement [RS-232 / RS-485].
Note: For connection diagram from RS-232 to RS-485 & RS-485 to RS-232 Refer Page No:-9
To view parameters of multiple devices select the pyrometer name from the drop down list that appears at the top of
the screen.
Accurate Sensors Technologies
16
(lll) Reset Below Temperature(RBT) The user can set RBT within the limit of pyrometer sub range. This function sets
the temperature above which peak picker action starts. When the target temperature matches or is below the
selected value, the sensor indicates temperature without picking action.
Temp
Time
Without RBT
Temp
Time
RBT
RBT with Decay Rate

8
12-pin Binder connector RS-232 communication connection
Male
Female
L
C
BA
J
K
G
H
M
F
E
D
LC
J
B
A
K
G
H
M
FE
D
D - Type 9 pin Female
Connector
LC
J
B
A
K
G
H
M
FE
D8
3
7
2
4
9
6
1
5
RxD
DGND
TxD
H
Pin
A
G
C
D
F
H
M
J
K
B
Colour
Red
White
Blue
Pink
Black
Yellow
Violet
Brown
Green
Yellow
Grey
Indication
+ 24 V DC In
Ground
TxD (RS-232) / D- (RS-485)
RxD (RS-232) / D+ (RS-485)
RS-232 communication
(-) 4-20mA / 0-20mA
(+) 4-20mA / 0-20mA
Short / Open both wires for laser
ON/OFF
- (0-10V)
+ (0-10V)
Used for
Power supply
RS-232/ communicationRS-485
Analog current output
Laser ON/OFF
Analog voltage output
E Blue-Yellow N/A
L Red-Grey N/A
Not used
3.3.2
USB 2.0 is provided for Parameter Setting and Data Logging. 2Mtr long USB cable is supplied with
pyrometer.
While USB 2.0 is connected RS-232 / RS-485 communication is not possible. LED light indicates USB 2.0
operation.
USB 2.0 Connection:
Open screw for USB 2.0
LED Light
(H)Relative energy(for two color pyrometer) The relative energy shows a signal weakening which can be caused by
contaminations of the optics or a viewing window or by dust in the field of view or a too small measuring object.
Relative energy shows the measured intensity compared to the intensity, a black body radiation source would have
at a determined ratio temperature of the pyrometer.
(I)Analog Range User can select the analog range from the option 4-20mA, 0-20 mA & 0-10V.
(J)Comm. Mode User can select the communication mode as per requirement [RS-232 / RS-485].
Note: For connection diagram from RS-232 to RS-485 & RS-485 to RS-232 Refer Page No:-9
To view parameters of multiple devices select the pyrometer name from the drop down list that appears at the top of
the screen.
Accurate Sensors Technologies
16
(lll) Reset Below Temperature(RBT) The user can set RBT within the limit of pyrometer sub range. This function sets
the temperature above which peak picker action starts. When the target temperature matches or is below the
selected value, the sensor indicates temperature without picking action.
Temp
Time
Without RBT
Temp
Time
RBT
RBT with Decay Rate