SMART SENSOR AS842A Infrared Thermometer The most basic design consists of a lens to focus the infrared (IR) energy on to a detector, which converts the energy to an electrical signal that can be displayed in units of temperature after being compensated for ambient temperature variation. Infrared Thermometers allow users to measure temperature in applications where conventional sensors cannot be employed. Specifically, in cases dealing with moving objects ( i.e., rollers, moving machinery, or a conveyor belt), or where non contact measurements are required because of contamination or hazardous reasons (such as high voltage), where distances are too great, or where the temperatures to be measured are too high for thermocouples or other contact sensors.
Temperature range
50 celsius 600 celsius ( 58 Fahrenheit 1112 Fahrenheit )
Accuracy(In the condition of 23 degrees C+ 3 degrees C)
100 celsius (212 Fahrenheit ) 600 celsius (1112 Fahrenheit ), + 2 celsius or + 2percent
0 celsius (32 Fahrenheit ) 100 celsius (212 Fahrenheit ), + 2 celsius or + 2percent
50 celsius ( 58 Fahrenheit ) 0 celsius (30 Fahrenheit ), + 3 celsius or + 3percent
whichever is greater
Repeatability
1percent of reading or 0.1 degrees C
Response time
500ms, 95percent response
Spectral response
(8 14)um & 500ms
Emissivity
0.10 1.00 adjustable (pre set 0.95)
Ambient operating range
0 40 degrees C (32 degrees F 104 degrees F)
Relative humidity
10 95percent RH noncondensing
Storage temperature
20 60 degrees C ( 4 degrees F 140 degrees F)
Weight
170g without battery
Dimensions
175*100*49mm
Distance to Spot Size
12:1
celsius Fahrenheit Selection
V
Data Hold Function
V
Laser Target Pointer Selection
V
Backlight Display Selection
V
Auto Power Off
V
Power
9V Alkaline or NiCd battery (not inlcude)
Package Contents
1pc A852A Therometer
1pc user s manual English
1pc gift box
Emissivity : Most organic materials and pa inted or oxidized surfaces have an emissiv ity of 0.95 (preset in the unit). Inaccurate readings will result from measuring shiny or polished metal surfaces. To compensate, cover the surface to be measured with mas king tape or flat black paint. Measure the tape or painted surface when the tape or painted reach the same temperature as the material underneath.
Marterial
Emissivity
Marterial
Emissivity
Aluminum
0.30
Iron
0.70
Asbestos
0.95
0.50
Asphalt
0.95
Limestone
0.98
Basalt
0.70
Oil
0.94
Brass
0.50
Paint
0.93
Brick
0.90
Paper
0.95
Carbon
0.85
Plastic
0.95
Ceramic
0.95
Rubber
0.95
Concrete
0.95
Sand
0.90
Copper
0.95
Skin
0.98
Dirt
0.94
Snow
0.90
Frozen food
0.90
Steel
0.80
Hot food
0.93
Textiles
0.94
Glass(plate)
0.85
Water
0.93
Ice
0.98
Wood
0.94
Diagram and LCD display:
Introduction
Compact, rugged and easy to use. Just aim and push the button, read current surface temperature in less than a second. Safely measure surface temperature of hot, hazardous or hard to reach objects without contact.
Diagram description
(1) Trigger: When turn on LCD display VER XX software version for 1 sec. And turn to di splay reading with SCAN icon. Release the trigger, display
reading with HOLD icon for 7 sec. Built in auto power off in 30sec.
(2) Laser back light button: when back light turn
(3) (6) key functions:
press 3 key, LCD subdisplay blinks MAX MIN DIF AVG HAL LAL STO segment (only main display means normal measuring mode)
press 4 key to enter.
a. MAX: measuring maximum temperature
b. MIN: measuring minimum temperature
c. DIF: Basic on the reading before press 4 key, compute the difference of current reading.
d. AVG: measuring average temperature
e. HAL: high temperature alarm when selected HAL, press 5 keys to set high temperature alarm trigger and confirmed by pressing key.
When reading over trigger, LCD display HI icon with BiBi audio sounds.
f. LAL: low temperature alarm when selected LAL, press 5 keys to set low temperature alarm trigger and confirmed by pressing 4 key. When reading over trigger, LCD display LOW icon with BiBi audio sounds
g. STO: data storage when selected STO, lock & DATA & 1 indicator will shown when press 4 key. After temperature read out press 6 key to store, then 2 memory unit will be shown.
There 12 groups memory unit available. To recall the stored data
In normal measuring mode by press ing 6 key, remove all data
by pressing 6 keys for 2 secretary.
h. EMS: Emissivity setup press 5 keys for emissivity settings, press 4 key to save setup and back to normal status.
(7) LCD display
(8) Battery door clip
(9) Battery door: When replace battery door, please press battery door clip and pull the battery door.
(10) Clesius Fahrenheit switch: Please open battery and push
the slide switch for con vertsion Maintenance
1) Lens cleaning: Blow off lose particles using clean compressed air. Gently brush remaining debris away W a moist cotton cloth.
2) Case cleaning: Clean the case with a damp sponge cloth and mild soap.
LCD display:
A data hold icon
B scanning icon
C laser on icon
D back light on icon
E battery power icon
F measuring unit
G measuring reading
Distance & spot size: As the distance from the object increase, the spot size of measuring area becomes larger.
Field of view:
Make sure the target is larger than the unit s spot size. The detected parts Diameter need up to 1.5cm. But the best testing distance is 20cm when detected parts size is 10*10cm
Attention:
1. Red laser point only position the general direction, the detection hole is the main Parts measure the temperature
2. Do not point laser directly at eye or in directly off reflective surface.
Quick Start Instruction:
Step 1
Press battery door clip, install battery correctly. Pull the trigger, LCD display reading& battery icon. Release the trigger and the reading will hold for 7 seconds.
Step 2
Locating a hot spot: To find a hot spot aim the thermometer outside the area of interest, then scan across with up and down motions until you locate the hot spot.(please turn on the laser for accurate measuring)
User s Guide:
How it works
Infrared thermometer measure the surface temperature of an objec,t. The units optical system sense the object s emitted energy with different wavelength. It is, collected and focus onto a detector. The unit s electronics system translated the information into a temperature reading which is displayed on the unit.
Cautions
Infrared thermometer should be protected from the following:
EMF (electro magnetic fields) from welders, induction heaters.
Thermal shock (cause by large or abrupt ambient temperature changes allow 30
minutes for unit to stabilize before use).
Do not leave the unit on or near objects of high temperature.
Do not point laser directly at eye or in directly off reflective surface.
.Note:Please note that this product is for industrial use and cannot be used to measure human body temperature.
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