Instructions
Version:IR20-EN-00
MODEL:IR20
Infrared thermometer
Instruction manual
A. Introduction
G. Maintenence
H. Specification
B. WARNING & CAUTIONS
21 3
5 64
D. EMISSIVITY
F. LCD display & buttons
A
B
CDEFG
H
I J K
E. Operation
2. :
(figure 2)
Diagram description
C. Distance to spot size
38mm@
300mm
75mm@
900mm
132mm@
1500mm
1.5"@
12"
3.0"@
36"
5.3"@
60"
D:S=12:1
This infrared thermometer is used for measuring the tem-
perature of the object's surface, which is applicable for va-
rious hot, hazardous or hard-toreach objects without contact
safe and quickly.
This unit consist of Optics, Temperature Sensor Signal
amplifier, Processing circuit and LCD Display. The Optics
collected the infrared energy emitted by object and focus onto
the Sensor. Then the sensor translates the energy into an
electricity signal. This signal will be turned out to be digital
shown on the LCD after the signal amplifier and processing
circuit.
1. Warning:
To avoid the potential situation may cause harm or dam-
age to people, please pay attention to the following items:
1) . Do not point laser directly at eye or indirectly off reflec-
tive surfaces.
2) . The unit cannot measure through transparent surfaces
such as glass or plastic. It will measure the surface tem-
perature of these materials instead.
3) . Steam, dust, smoke, or other particles can prevent acc-
urate measurement by obstructing by the units optics.
2. Cautions:
Infrared thermometer should be protected for the
following:
1). EMF (electro-magnetic fields) from arc welders,
induction heaters.
2). Thermal shock (cause by large or abrupt ambient
temperature changes allow 30 minutes for unit to
stabilize before use).
3). Do not leave the unit on or near objects of high
temperature.
Emissivity: Most organic materials and painted or
oxidized surfaces have an emissivity of 0.95(preset in
the unit). Inaccurate readings will result from measuring
shiny or polished metal surfaces. To compensate for this,
adjust the units emissivity reading or cover the surface to
be measured with masking tape or flat black paint.
Measure the tape or painted surface when the tape or
painted reach the same temperature as the material
underneath.
1. When take measurement, pay attention to the Distance
to Spot Size. As the Distance (D) from the target surface
increases, the spot size (S) of the area measured by the
unit becomes larger.
The Distance to Spot size of the unit is 12:1.
This unit is equipped with a laser, which is used for aiming.
2. Field of view:
Make sure the target is larger than the unit's spot size.
The smaller the target the closer measure distance.
When accuracy is critical, make sure the target is at least
twice as large as the spot size.
0.30
0.95
0.95
0.70
0.50
0.90
0.85
0.95
0.95
0.95
0.94
0.90
0.93
0.85
0.98
0.70
0.50
0.98
0.94
0.93
0.95
0.95
0.95
0.90
0.98
0.90
0.80
0.94
0.93
0.94
Emissivity
Emissivity
Marterial
Marterial
Aluminum
Asbestos
Asphalt
Basalt
Brass
Brick
Carbon
Ceramic
Concrete
Copper
Dirt
Frozen food
Hot food
Glass(plate)
Ice
Iron
Lead
Limestone
Oil
Paint
Paper
Plastic
Rubber
Sand
Skin
Snow
Steel
Textiles
Water
Wood
1. Operating the unit:
1). Open the battery door and insert a 9V battery properly.;
2). Pull the trigger to turn on the unit;
3). Aim at the target surface and pull the trigger, then temp-
erature will be shown on the LCD.
This unit is equipped with a laser, which is only used for
aiming.
2. Locating a Hot Spot:
To find a hot spot, aim the thermometer outside of interest,
then scan across with an up and down motion until you
locate the hot spot. (Figure 1)
Figure 1
1.LCD display:
A: Measuring reading
B: Measuring unit
C: Laser on icon
D: Backlight on icon
E: Battery power icon
F: Scanning icon
G: Data hold icon
H: Mode/emissivity indicator
I: Data storge / read icon
J: Low temperature alarm icon
K: High temperature alarm icon
1
SET
MODE
STO
CAL
7
3
4
6
2
5
5
Figure 2
(1) Trigger: When turn on LCD display VERXX software
version for 1 sec. And turn to display reading with
SCAN icon. Release the trigger, display reading with
HOLD icon. Built in auto power off in 7sec.
(2) Laser / back light button: when back light turn on ,
any operations will remain back light for 10 sec. LCD
indicate on/off status.
(3)—(6) key functions: press 3 key, LCD subdisplay
blinks MAX-MIN-DIF-AVG-HAL-LAL-STO-EMS seg-
ment(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 4 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 30 groups memory
unit available. To recall the stored data in normal
measuring mode by pressing 6 key, remove all data
by pressing 6 keys for 3 seconds.
H. EMS: Emissivity setup-- press 5 key for emissivity
settings, press 4 key to save setup and back to
normal status.
(7) Clesius / Fahrenheit switch: Please open battery
and push the slide switch for convertsion.
1. Lens Cleaning:
Blow off loose particles using clean compressed
air. Gently brush remaining debris away with a
moist cotton swab. The swab may be moistened
with water.
2. Case cleaning: Clean the case with a damp spo-
nge/cloth and mild soap.
Note:
1) Do not use solvent to clean plastic lens.
2) Do not submerge the unit in water.
Accuracy
0~700℃(32~1292℉) :±1.5℃(±2.7℉)
or±1.5%
-50~0℃(-58~32℉):±3℃ (±5℉)
Whichever is greater
Repeatability
1% of reading or 1℃
Response time
500 mSec, 95% response
8-14 um
Emissivity
0.10~1.00 Adjustable (0.95 Preset)
0 ~40℃ (32 ~ 104℉)
-20 ~ 60℃ (-4~140℉)
Power
9V Alkaline or NiCd battery
Non-laser mode: 22 hrs;
Laser Models:12 hrs
12:1
Spectral response
Operating Humidity
Storage Temperature
Typical battery life
(Alkaline)
Distance to Spot size
Weight
Dimension
-50~700℃ (-58~1292℉)
Temperature range
111*50*172mm
222g
Operating Temperature
10~95%RH non-condensing,
up to 30℃(86℉)
Resolution
0.1℃ or 0.1℉
MADE IN CHINA
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I
R20
I
N
F
RAR
E
D T
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ERM
OM
ET
ER
-5
0 C ~ 70
0 C (
-
5
8 F ~ 1
29
2 F)

