Sentry ST 662 User manual

Infrared Thermometer
MODEL: ST 662
Instruction
Manual
Broad Temp.

Infrared Thermometer
Instruction
Manual
662 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 of Infrared Thermometer
6.Maintenance
1-1 Features
2-1 Cautions
4-1 Quick Start
4-2
4-3 °C/ °F and Battery Change
5-1 Field of view(FOV) ratio
5-2 Emissivity
Table Content
1
2
3
4
1
1
2
2
4
4
5
6
7
7
6
Broad Temp. Infrared Thermometer

Broad Temp. Infrared Thermometer 1
Ultra low power consumption in shutdown mode.
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 terminals on circuits.
Food safety and processing.
Perform HVAC energy audits.
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 target objects 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 unit in 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 following standards:
EN50081-1:1992 Electromagnetic Emissions.
EN50082-1:Electromagnetic Susceptibility.
Test were conducted using a frequency range of 80-
1000MHz with the instrument in three orientations. The
o o
average error for the three orientations is ±C )4.0 F( at
3V/m throughout the spectrum. However, between 300MHz
and 800Mhz at 3V/m, the instrument may not meet its stated
accuracy.
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℉)
±3 C(±5 F)
From -50~-20 C(-58~-4 F)
° °
° °
8~14 mμ
±1 C (±2 F) ° °
1 C (1 F)° °
500 ms.
Fixed at 0.95
Automatically after approx. 6 sec.
9V(006P, IEC6F22, NEDA1604)
187g 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) ° °
±2 C(±3 F)
From -20~100 C(-4~212 F)
° °
° °
±2% From
100~999 C(212~1830 F)° °
YES
9V Battery, Instruction manual,
Carrying case.
Battery Life
16 hrs.
Max/Min/Avg/△T
YES
Broad Temp. Infrared Thermometer 3
Supply Voltage 9V
Auto-measuring
10 Point Memory
Laser Sight Switchable
YES
YES
YES
YES
Audio Alarm

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 the current
temperature in Celsius or Fahrenheit. The unit will
HOLD the last reading for about 6 seconds after
the trigger is released; the word 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 adjusted respectively.
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 change the 9V battery,
pull open the unit's
handle under the trigger.
A f t e r r e p l a c i n g t h e
battery push back and
snap in place.
°
°
LCD Display
Scan/Hold
mode indication
°C/°F unit indication
Temperature indication
c
F
ON
OF
LASER
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 of view(FOV) ratio
=Distance to diameter (DS) ratio
6 Broad Temp. Infrared Thermometer