Sentry ST 660 User manual

Infrared Thermometer
MODEL: ST 660
Instruction
Manual
Broad Temp.

Infrared Thermometer
Instruction
Manual
ST660 Version-01 05/APR.
Broad Temp.

1.Product Introduction
1-2 Applications
2.Safety Information
2-2 Safety symbols
3.Specifications
4.Operation Instructions
Unit Diagram
5.Techniques ofInfrared Thermometer
6.Maintenance
1-1 Features
2-1 Cautions
4-1 Quick Start
4-2
4-3 C/ F and BatteryChange
5-1 Field ofview(FOV) ratio
5-2 Emissivity
Table Content
1
2
3
4
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1
2
2
4
4
5
6
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7
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Broad Temp. Infrared Thermometer

Broad Temp. Infrared Thermometer 1
Ultra low power consumption in shutdownmode.
Extended long time measuring reliability.
Backlit LCD display.
C or F selectable.
Electronic trigger lock.
1-1 Features
Electrical troubleshooting.
Automotive repair and maintenance.
Air conditioner.
Science experiment.
Manufacturing processes of semiconductor
technology.
Test terminalson circuits.
Food safety and processing.
Perform HVAC energyaudits.
1-2 Applications
Thank you for purchasing this infrared thermometer.
The Infrared Thermometer is a non-contact infrared
temperature measuring instrument. To measure a
temperature, point the unit at the object unitl the
temperature is read, pull the measuring trigger and
hold. Make sure the target area is larger than the unit's
spot size. For large targetobjects assure you are within
target distance.
1.Product Introduction

Read the following safety information carefully
before attempting to operate or service the meter.
Only qualified personnel should perform repairs or
servicing not covered in this manual.
2.Safety Information
DO NOT submerge the unitin water.
This product is not designed for use in medical
evaluations. The product can only be used to
measure body temperature simply for reference.
They are meant for industrial and scientific
purposes.
2-1 Cautions!
2-2 Safety symbols
Dangerous, refer to this manual before using
the meter.
CE Certification.
This instrument conforms to the followingstandards:
EN50081-1:1992 Electromagnetic Emissions.
EN50082-1:Electromagnetic Susceptibility.
Test wereconducted using a frequency range of 80-1000MHz
with the instrument in three orientations.The average error for
oo
the three orientations is 2.0 C (4.0 F) at 3V/m throughout the
spectrum. However, between 300MHz and 800Mhz at 3V/m,
the instrument may not meet its statedaccuracy.
Do not point laser directly at eye . Use
catution a round reflective surfaces. Keep out of
reach of children.
Laser Warning Note!
2 Broad Temp. Infrared Thermometer

3.Specifications
Distance/Spot Ratio
Temperature Range
Accuracy
Thermopile
Repeatability
Resolution
Response Time
Emissivity
/ Switchable
Backlight
Auto Power Off
Battery Type
Dimensions
Weight
Accessory
12:1
-50~999 (-58~1830 )
3C( 5F)
From -50~-20 C(-58~-4 F)
8~14 m
1 C ( 2 F)
1 C (1 F)
500 ms.
Fixed at 0.95
Automatically after approx. 6 sec.
9V(006P, IEC6F22, NEDA1604)
163g Approx.
170x133x45mm
(6.69"x5.23"x1.77")
Operation Temp.
0~50 C(32~122 F),10~90%RH
YES
(Assumes Operation
Ambient Temperature
of 25 C/77 F)
2C( 3F)
From -20~100 C(-4~212 F)
2% From
100~999 C(212~1830 F)
YES
9V Battery, Instructionmanual,
Carrying case.
Battery Life 16 hrs.
Laser Sight Switchable
YES
Broad Temp. Infrared Thermometer 3

4.Operation of Instrument
To measure a temperature, point the unit at the
target you want to measure, pull the trigger and
hold. In SCAN mode, the LCD displays thecurrent
temperature in Celsius or Fahrenheit. The unit will
HOLD the last reading for about 6 seconds after
the trigger is released; theword HOLD appears. Be
sure to consider the target area inside the angle of
vision of this instrument. The laser is used for
aiming only. For small targets at short distances
the aim should be adjustedrespectively.
4-1 Quick Start
4-2 Unit Diagram
Display Screen
Laser Sighting
Measuring Window
Measuring Trigger
Battery and cover
4 Broad Temp. Infrared Thermometer

4-3 C/ F and Battery Change
The unit is powered by
9V battery and displays
temperatures in either C
or F. The user has to
replace the battery when
the battery voltage drops
below the voltage for
reliable operation and at
the same time the low
battery symbol will
appear.
To changethe 9V battery,
pull open the unit's
handle under the trigger.
After replacing the
battery push back and
snap in place.
LCD Display
Scan/Hold
mode indication
C/Funit indication
Temperature indication
c
F
ON
OF
9V Battery
Laser on/off
C/ F
Switchable
Low battery
Laser on/off
indication
Broad Temp. Infrared Thermometer 5

mm 34@250
48@500
78@1000
D:S=12:1
inch 1.4@10 1.9@20 3.1@40
D
S
5.Techniques Of Infrared
Thermometer
The field of view is the angle of vision at which the
instrument operates, and is determined by the
optics of the unit. The FOV is the ratio of the
distance from the target to the target diameter. The
smaller the target, the closer you should be to it.
When the target diameter is small, it is important to
bring the thermometer closer to the target to insure
that only the target is measured.
5-1 Field ofview(FOV) ratio
=Distance to diameter(DS) ratio
6 Broad Temp. Infrared Thermometer