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  9. Centertek Center 352 User manual

Centertek Center 352 User manual

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1
CENTER 352
INFRARED THERMOMETER
INSTRUCTION MANUAL
OPEN
LASER RADIATION -
OUTPUT < 1mW AT 630 670mm
DO NOT STARE INTO BEAM
CLASS II LASER PRODUCT
CAUTION
Warning of laser
Do not point laser beam to human eyes directly or indirectly from
reflective surfaces.
Cautions
Before using the infrared thermometer the operator have to notice
the following:
 Keep away from electrical welders, induction heaters and other
EMF sources.
 When using this thermometer under big or abrupt ambient
temperature changes, allow 15 minutes for the unit to stabilize
before use.
 Do not keep this thermometer in the environment of high
temperature for a long period.
 Keep away from dusty environment and keep it in the carry
case after operation to avoid contamination of optical lenses.
LCD Display
HOLD
SCAN
Low battery symbol
Temperature unit
indication
Data Hold indication
Laser On indication
Digital readout
Scanning indication
2
Distance : Spot = 12 : 1
Unit : mm
300 600 900 1200
78
31 44 59 Spot Size
Measuring Distance
Switch and Functions
OPEN
LASER RADIATION -
CLASS II LASER PRODUCT
DO NOT STARE INTO BEAM
OUTPUT < 1mW AT 630 670mm
SCAN
1
2
6
5
7
°F
OFF
LASER
ON °
C
34
CAUTION
○
1Laser emitting hole
○
2Infrared sensor aperture
○
3Laser on/off switch
○
4°C/°F switch
○
5Measuring Trigger
When measuring a temperature, point the unit to the object
and pull the trigger. Be sure to consider distance-to-spot size ratio
and field of view. The laser is used for aiming the target for
reference only. The temperature reading will be updated on the
LCD. When the operator releases the trigger, the reading will be
automatically held on the LCD for 10 more seconds. After 10
seconds this thermometer will power down itself to save battery.
○
6Battery cover
○
7LCD display
Changing Battery
When the battery voltage drops
below the required range for reliable
operation, the low battery symbol will
appear, indicating it is time to replace the
battery.
To change the 9V battery, detach the
battery compartment cover by pushing the
engraved pattern on the handle and pull
down. Change the 9V battery with new
one and put the battery cover back.
Distance to Spot Ratio (D/S)
You have to make sure that the detection area you want to
measure is larger than the required spot size to get a correct
reading. The temperature you get is an average temperature of the
detected region. The smaller the target, the shorter distance is
required for the measuring. (Please refer to the diagram on the
side of the unit)
LASER RADIATION -
OUTPUT < 1mW AT 630 670mm
DO NOT STARE INTO BEAM
CLASS II LASER PRODUCT
OPEN
CAUTION
3
Emissivity
Emissivity is a term used to describe the energy-emitting
characteristics of materials. The higher of this value means the
more radiation emittance the materials has. Most organic materials
and painted or oxidized surfaces have an emissivity of 0.98. Metal
surfaces or shiny materials has a lower emissivity and give
inaccurate readings by this tester. Please note this during
applications.
Maintenance
Blow off loose particles using a lens blow. Gently brush remaining
debris away with a lens brush. Carefully wipe the surface with a
moist cotton swab. The swab may be moistened with water.
NOTE: DO NOT use solvents to clean the glass lens.
GENERAL SPECIFICATIONS
Field of View 12:1
Detector Thermopile
Temperature Range -20~500°C -4~932°F
Resolution 0.1°C, 0.2°F
Operation Temperature
& Humidity
0~40°C, 32~104°F, 10~90%RH
Storage Temperature
& Humidity
-10~60°C, 14~140°F, ≤75%RH
Accuracy ±2°C(4°F) or ±2% of reading
Repeatability Within ±1% of reading or ±1°C(2°F)
Response Time 0.5 second
Display 4 digit LCD
Display Illumination Backlight by LED
Target Indicator Laser spot
Emissivity 0.98
Power Off Automatic power-off after 10 seconds
Low Battery Indicated by “ ”
Battery 9V battery, 006P, IEC6F22, NEDA1604
Power Life (Alkaline) Approximately:15 hrs
Accessories 9V battery, instruction manual,
carrying case
Dimensions 157.5x115x36mm, 17.5x4.5x1.4inch
Weight Approx.180g
4
CE Certification
This instrument conforms to the following standards:
 EN50081-1:1992 Electromagnetic Emissions
 EN50082-1:1997 Electromagnetic Susceptibility
Tests were conducted using a frequency range of 80-1000
MHz with the instrument in three orientations. The average error
for the three orientations is ±1.5°C (±3.0°F) at 3V/m throughout the
spectrum. However, between 162 MHz and 792 MHz at 3V/m, the
instrument may not meet its stated accuracy.