AST P250 User manual

AST P250/P450
USER MANUAL
Accurate Sensors Technologies
Non-contact Infrared Pyrometers
We measure accurate temperature in extreme conditions
AST - Accurate Sensors Technologies
Misgav Industrial Park
Tel: [phone], Fax: [phone]
Email: [e-mail]
Web: www.accuratesensors.com
, Misgav 20173, Israel

Index
1. Chapter - 1
General information
2. Chapter - 2 ....................................................................................................................... 2
Introduction
2.1 Application, range and working principle
2.2 Technical specification
2.3 Optical Data
2.4 Standard Item Supplied with AST P250/P450
3. Chapter - 3 ....................................................................................................................... 5
Operation of the pyrometer
3.1 Overview
3.1.1 Adjustment of the diopter adaptor
3.2 Installation of pyrometer
3.2.1 Battery Insertion
3.2.2 Switching On
3.2.3 Display Function
4. Chapter - 4 ....................................................................................................................... 9
A. PC Software installation
A. 4.1 Installation
A. 4.2 Parameters in main screen
A. 4.2.1 Communication
A. 4.2.2 Parameter setting
A. 4.2.3 Device information
A. 4.3 Number of Events Present
A. 4.4 Show Events
A. 4.4.1 Data
A. 4.4.2 Graph Mode
A. 4.4.3 Numeric Mode
A. 4.4.4 Save Events
A. 4.5 Clear Memory
5. Chapter - 5 ....................................................................................................................... 15
Serial Communication Protocol MT500
....................................................................................................................... 1

Congratulations on choosing this high quality and highly efficient AST pyrometer for non contact temperature
measurement.
Please read this user manual carefully, step by step, including all notes of security, operation and maintenance
before installing the pyrometer. This manual contains all the necessary instructions for set up and operation of the
pyrometer. This section provides an overview about important safety regulations.
Some Important Safety Regulations Given Below:
1. Safety Precaution :
Each person working with pyrometer must read the user manual before operation. The pyrometer has only to
be used for the purpose described in manual. The pyrometer works only with a potential free low voltage. This
voltage is not harmful for user. The pyrometer may contain harmful material and hence it should not be disposed of
with normal waste.
2. Packaging and Storage :
Always use a shock proof package for shipment of pyrometer. It should be sealed to protect it against humidity.
Also protect the lens of pyrometer with cover. They should be stored at the temperature range from -20°c to 55°c.
3. Limit of Liability and Warranty
All general information and notes for handling, maintenance and cleaning of this instrument are offered
according to the best of our knowledge and experience.
AST reserves the right to revise this document and to make change from time to time in the content hereof
without obligation to notify any person or persons of such revisions or changes. AST instruments have a warranty of
two year from the invoice date. This warranty covers manufacturing defects and faults which arise during operation
only if they are the results of defects caused by AST.
AST does not accept liability for any damages or losses which might occur, including consequential damages and
financial losses, as a result of use of the instrument.
4. 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 instrument with which
this document is associated.
Chapter - 1
General Information
1

Chapter - 2
Introduction
AST P250/P450 is specially designed highly accurate digital pyrometer to provide high performance and low
maintenance of non contact temperature measurement in demanding industrial environment.
2.1 Application, Range and Working Principle
P250/P450 are specially designed portable IR pyrometer for non contact temperature measurement between
210°C to 3000°C in demanding industrial environments. The Instruments feature high accuracy. The multi functional
bright back light additional LCD graphic display panel provides an indication of status and configuration of pyrometer
together with measurement mode. The measuring result is shown and can be analyzed directly on site.
The bright through the lens sighting gives a precise definition of the target spot.
The portable pyrometer provides fast, simple data logging with USB connectivity to download this data to PC for
analysis. The fast response time within milliseconds allow exact measurement of fast moving object. The large data
storage (data store up to 4000 values) of measurement offers the best possibility for analyzing the data.
The applications in which AST pyrometers can be used are:
Ÿ Welding
Ÿ Tempering
Ÿ Hardening
Ÿ Annealing
Ÿ Molten Glass
Ÿ Glass Moulds
Ÿ Steel
Ÿ Heater Tubes
Ÿ Reheat Furnaces
2
186
72.80
111 75
45
Ø44
229
40.50

2.2 Technical Specifications
3
Standard Item supplied with AST P250/P450 :-
þ
þ
þ
þ
þ
þ
Pyrometer with through the lens sighting.
USB interface, USB 2.0 Cable.
Calibration certificate.
Software CD and Operation manual.
Carry Box
Charger
Physical Characteristics
Environmental Specification
Electrical Specifications
Measurement Specifications
Dimensions
Weight
Housing
228 x 64 x 186 mm (L x W x H)
900g with batteries
Aluminum, Handle: ABS
Ambient Temperature
Storage Temperature
Relative Humidity
Protection Class
0 to 50°C
-20 to 55°C
10 - 95%, Non-Condensing
Conditions
IP52(Housing Exclude Handle with
battery case), IP40 (Handle)
Power Supply
CE Label
3 x 1.2 V Rechargeable Batteries
(uninterrupted operation time
approx. 10 hours with
rechargeable batteries)
According to EU Directives about
electromagnetic immunity
Model P250 P450
Temperature Range
Spectral Range
Photodetector Type
Distance to Spot Size Ratio
Emissivity (ε)
Response Time
Accuracy
Repeatability
Sighting Options
Objective
Measuring Functions
Parameters Setting Via Side
Keypad
Data Storage
Storage Interval
210°C….1350°C
250°C....1800°C
300°C....2500°C
1.6 µm
InGaAs
100:1
200:1
400:1
0.1….1.0 adjustable
5 msec in Numerical Mode
10 msec in Graphical Mode
10 msec (When data storage is ‘ON’)
± 0.3% of the measured value + 1°C
0.1% of reading in °C + 1°C
Optimized through lens view finder with dioptry
correction -2.5 dpt. to +2.5 dpt
Normal (Normal Temperature Measurement)
MAX (Maximum Temperature Measurement)
AVG (Average Temperature Measurement)
Emissivity, Peak Picker(Clear Time)(tCL), Average,
Storage Interval, Temperature Unit(°C/°F), Auto Off
Time, Date, Time
4000 Values, Storage of Measurement Value, Date,
Time, Emissivity
OFF, 10 msec, 20 msec, 100 msec, 1 sec, 10 sec, 100
sec, 500 sec
600°C…2500°C
700°C... 3000°C
1.0 µm
Si
400:1
400:1
Achromatic, adjustable from A=500 mm to 9000 mm
Effective lens aperture diameter D:16mm (distance
9000mm) to 21 mm (distance 500mm)
Display
Resolution
Serial Interface
Left side: LCD Display, 128 x 64 pixels illuminated
3 value per sec.; last value is displayed for another 10
sec after finishing measurement (Hold Function)
Additional Built in LED display in the view finder
LED inside : 0.1°C upto 1000°C after this 1°C
LCD outside : 0.1°C upto 1000°C after this 1°C
USB 2.0
(210°C….1350°C)
(250°C....1800°C)
(300°C....2500°C)
(600°C…2500°C)
(700°C... 3000°C)
Alarm Visual (LCD Blinking Facility)
Mounting Tripod

4
2.4 Standard Item supplied with AST P250/P450
The pyrometers are equipped with a high quality focusable optics. Adjusting the optics to required measuring
distance achieves the spot sizes specified in table. The adjustment can be taken via the scale on the objective or by
focusing the measuring object in the view finder. User can adjust measuring distance from 500mm - infinity ( ).∞
500 mm
infinity (∞)
Measuring distance between 500mm to
infinity ( ) with small spot size can be
achieved with the pyrometer.
∞
2.3 Optical Data
1) Sighting :- The bright through the lens sighting with spot indicator for precise targeting and built
in temperature display facilities provide good target accuracy. If user want to focus view finder which
is equipped with adjustable diopter adaptor then diopter adaptor can be adjust from min(0.5) to max
∞by rotating it.
2) Spot Size Table :- The objective can be focused to adjust within distances between 0.5m &
infinity ∞
( )
( )
Pyrometer with through
the lens sighting
USB interface,
USB 2.0 Cable
Calibration certificates
& Operation manual.
Software CD
Carry Box
Charger
3 Nos. Rechargeable Battery
Temperature
Display
Spot Indication
Spot Sizes(mm)
Measuring Distances
MD (mm)
with standard focusable optics
500
1000
2000
3000
4000
5000
9000
P250
250°C - 1800°C
(200:1)
2.5
5
10
15
20
25
45
P250
210°C - 1350°C
(100:1)
5
10
20
30
40
50
90
P450
600°C - 2500°C
700°C - 3000°C
(400:1)
P250
300°C - 2500°C
(400:1)
1.25
2.5
5
7.5
10
12.5
22.5
1.25
2.5
5
7.5
10
12.5
22.5

5
Chapter - 3
Operation of the Pyrometer
3.1 Overview
Focusable Optics
between 500 mm to ∞
Numerical or Graphical Mode
Switch
View Finder with Spot
Indication and built in Digital
Display
USB Interface for connection
with the software and
Charging the Pyrometer
Choosing the Measuring Function:
Normal Temp. Measurement, Max.
Temp. measurement, or average
Temp. measurement. Pyrometer
Parameter Setting: Emissivity,
Picker(tCL), Average, Trigger Interval,
Temp. Unit(°C/°F), Auto off time,
Date, Time Data Storage Button for
measured Temperature
Storage
Numeric Display
3.1.1 Adjustment of the Diopter adaptor
The view finder is in-built with an adjustable diopter adaptor. The diopter adjuster has no visual zero position and
has to be adjusted individually. It has to be adjusted for user to user.
Turning Right
+2.5 dpt
View finder with
diopter adaption
Turning Right
-2.5 dpt
Power Key
(ON/OFF Key)
UP & DOWN
Key
Battery Compartment
Storage Data Display Switch
Graphic Display

6
3.2 Installation of Pyrometer
For operating the pyrometer 3 batteries (rechargeable batteries)
are required (Note :- Alkaline- manganese batteries should not be
used). They must be inserted into the battery holder (Note:-
polarity of battery should be correct). And installed afterward into
the pyrometer handle (Note :- position and direction of battery
should be correct). After closing the battery case cover the
pyrometer is ready for use. The direction of battery holder shown
in figure.
3.2.1 Battery Insertion
Handle Battery Case
Battery Holder
Battery
Case Cover
Insert
Direction
3.2.2 Switching ON
The pyrometer can be switched ON/OFF by pressing power key.
Power key can be short press for ON and long press for OFF. After
switching ON, the pyrometer immediately starts measurement.
The result of the measurement is shown on LCD as well as in view
finder.
Push Button
(A) Triggering point/ Single value storage: - User will trigger the
button on handle to hold the value, the value will automatically
save into the pyrometer according to time interval.
(B) Multiple value storage :- When push button pressed
repeatedly for some time, then multiple measured values are
stored in memory of pyrometer.
( C) Continuous measurement/Continuous value storage :- While
pressing continuous key in LCD shows CONT., pyrometer will
continuously start tracing the value. The tracing indication will
shows on LCD display
(D) USB Interface :- The pyrometer is equipped with a USB
interface which can be connected with PC. The battery can be
charge through USB interface by connecting to charger provided.
Note : Before start taking measurement pyrometer must be fully
charge. The time of full charging of battery is 1.5 hour.
USB
Interface
Continuous Measurement
Display Switch

7
3.2.3 Display Functions
FUNC
A) Emissivity :- It is the E) Temperature Unit :- User can
relationship between the select °C or °F unit.
emissions of a real object and
the emission of a black Body
radiation source at the same temperature. For a
F) Memory clear :- To clear the
correct measurement it is necessary to adjust
save data from memory,
E m i s s i v i t y. E m i s s i v i t y d e p e n d s o n t h e
memory clear function is used.
surfacecondition of the material, the spectral range
By making memory clear
of the pyrometer and the measuring temperature.
function ON, Memory can be cleared.
Different material has different Emissivity ranging
from 0 to 1.0 User can change Emissivity by given
keypad on the instrument from 0.1 to 1.0. G) Set Date & time :- User can
B) Picker :- User can calculate a set correct date and time using
maximum “peak” temperature this parameter. To get Access
value from specified number to the menu for date & time
store real temperature in the keep pressing the FUNC button repeatedly.
sensor memory. User can either ON or OFF the picker.
(for more details Refer 4.2.2( C)) H) Auto Off :- User can set
auto off time of pyrometer
from 5mins. to 30mins. In this
C) Storage Interval :- Interval
mode the pyrometer will
determines whether only one
automatically off when no key is press in the time of
value will be stored when push
Auto Powered OFF. Example if user set 5 minutes in
button is pressed up-to the
Auto Off then the pyrometer will automatically
single triggering point. User can set storage interval
Powered OFF if no key is press for 5 minutes.
from 10ms to 500 Sec.
D) Average :- This parameter
help to switch ON & OFF
average measuring mode. In
addition to measured value,
show the average value of
the current measurement
process & save it, If it is in the range.
1
FUNC
The pyrometer is controlled by adjustment button on left side of instruments.
A
C
D
E
Function key :- There are different uses of function key first one, this key is use to see different
parameters in device and other one is set the value of parameter which is adjusted by UP &
DOWN key. By pressing of Func Push button brings up the following functions one after other.
They are appears in the bottom left of the LCD display in short form.
Function key adjustable parameters are below.
F
H
G

8
Continuous Key :- The pyrometer can also be used in continuous Measurement mode. To do this, after
the pyrometer switched ON press the “CONT” push button. In continuous data saving mode Auto Off
function will not work. To go back to normal measuring mode again press continues button, It shows
Hold on screen and after 10 seconds goes back to normal measuring mode.
4
NOTE :- When the continuous Push button press continuously for 5 sec then the stored values shown on LCD display
with all required parameters like date& time, emissivity, storage block etc. User can also view these stored values in
graphical or numerical mode by pressing graphical/ numerical key.
Up/ Down Key :- These key is use to change the present value of any parameter (which given in
function key) either upward or downward.
2
Graphic /Numeric key :- This key is used switch the display either graphical to numerical and Vice -
versa.
123.9
3
A) Numeric Mode :- In this B) Graphic Mode :- In graphic
measurement mode the mode temperature is shown
display always show the graphically. In addition to the
current measured value, information in the numeric display,
as well as set Emissivity. the maximum & minimum values
are also shown. The relevant Maximum & Minimum value
defines the scaling of Y-axis. The measurement curve runs in
the direction of the X-axis. Each measured value represent by
one pixel.
Mode of Operation
1) Normal measuring mode : This mode is used for normal temperature measurement.(Refer to 3.2.3.3 A)
2) Average measuring mode : when average mode is ON then LCD of device will show average temperature after
every 3sec (Refer to 3.2.3.3 D)
3) Maximum measuring mode : when peak picker is ON then LCD of device will show Max. temperature. (refer to
3.2.3.3 B)
Emissivity
Current Block + Total Number of Block
Date Of measured Values
Saved Measured Value
Add measurement Mode If any
Measured value Number + Total Number of Values in the block
Time of Measured Values
Position of Measured value