Opal DT-8862 User manual

English
Non-Contact Infrared Thermometers
Operating Manual
3p
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INTRODUCTION
Thank you for purchase of the IR Thermometer. This is capable of
non-contact (infrared) temperature measurements at the touch of a
button. The built-in laser pointer increases target accuracy while the
backlight LCD and handy push-buttons combine for convenient,
ergonomic operation.
The Non-contact Infrared Thermometers can be used to measure
the temperature of objects’ surface that is improper to be measured
by traditional (contact) thermometer (such as moving object, the
surface with electricity current or the objects which are uneasy to be
touched.)
Proper use and care of this meter will provide years of reliable
service.
FEATURES:
zRapid detection function
zPrecise non-contact measurements
zDual laser sighting
zUnique flat surface, modern housing design
zAutomatic Data Hold
z/ switch℃℉
zEmissivity Digitally adjustable from 0.10 to 1.0
zMAX temperature displays
zBacklight LCD display
z Automatic selection range and Display Resolution 0.1ºC(0.1ºF)
zTrigger lock
zSet high and low alarms
WIDE RANGE APPLICATION:
Food preparation, Safety and Fire inspectors, Plastic molding,
Asphalt, Marine and Screen printing, measure ink and Dryer
temperature, HVAC/R, Diesel and Fleet maintenance.
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SAFETY
zUse extreme caution when the laser beam is turned on.
zDo not let the beam enter your eye, another person’s eye or
the eye of an animal.
zBe careful no to let the beam on a reflective surface strike your
eye.
zDo not allow the laser light beam impinge on any gas which
can explode.
Distance & Spot Size
As the distance (D) from the object increases, the spot size (S) of
the area measured by the unit becomes larger. The relationship
between distance and spot size for each unit is listed below. The
focal point for each unit is 914mm (36”). The spot sizes indicate 90%
encircled energy.
D:S= 12:1
D
S
12in.1in @
6in.
0.5in @
25mm @300mm
150mm12.5mm @
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1. SPECIFICATIONS
Temperature range D: S
-50to650
oC(-58 ~ 1℉202 ) 1℉2:1
Display resolution 0.1 ℃(0.1 ) <1000℉
1 >1000℉
Accuracy fortargets:
Assumes ambient operating temperature of 23 to 25 ℃(73 to 77℉)
-50 ~ 20℃(-58℉~ 68℉) ±2.5℃(4.5℉)
20℃~300℃(68℉~572℉) ±1.0%±1.0℃(1.8℉)
300℃~650℃(572℉~ 1202℉) ±1.5%
Repeatability
-50~20℃(-58~68℉) : ±1.3℃(2.3℉)
20~650℃(68~1202℉): ±0.5% or ±0.5℃(0.9℉)
Response time 150ms
Spectral response 8~14um
Emissivity Digitally adjustable from 0.10 to 1.0
Over range indication LCD will show “----”
Polarity Automatic (no indication for positive polarity);
Minus (-) sign for negative polarity
Diode laser output <1mW,Wavelength 630~670nm,
Class 2 laser product
Operating temp. 0 to 50℃(32 to 122℉)
Storage temp. –10 to 60℃(14 to 140℉)
Relative humidity 10%~90%RH operating,
<80%RH storage
Power supply 9V battery, NEDA 1604A or IEC 6LR61,
or equivalent
Safety “CE”ComplywithEMC
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Note:
zField of View: Make sure that the target is larger than the
unit’s spot size. The smaller the target, the closer you should
be to it. When accuracy is critical, make sure the target is at
least twice as large as the spot size.
2. FRONT PANEL DESCRIPTION
①IRsensor
②
LCD Display Laser pointer beam
③up button
down button④
⑤ mode button
⑥ Measurement Trigger
⑦ Battery Cover
⑧ Handle Grip
3. INDICATOR
① Data hold
② Laser ” on” symbols
③ Lock symbol
④ High alarm and low
alarm symbol
⑤ / symbol℃℉
⑥ Low power symbols
⑦ Emissivity symbol and value
⑧ Temperature values for the MAX
⑨ Symbols for MAX
⑩ Current temperature value
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4. Buttons
① Up button (for EMS,HAL,LAL)
② Down button (for EMS,HAL,LAL)
③ MODE button
(for cycling through the mode
loop)
Functional Design
1. the switches of C/F sat in a cell
switching
2. When measuring, the up/down keys
are for adjusting the Emissivity.
3. In the Hold mode, the up key is for
turning on or off the laser. The Down
key is for turning on or off the backlight.
4. To set values for the High Alarm (HAL),
Low Alarm (LAL) and Emissivity (EMS),
press the MODE button until the
appropriate code appears in the display,
press the UP and down buttons to adjust
the desired values.
MODE Button Function
Press the mode button also allows you to
access the set state, Emissivity(EMS),
Lock on/off, HAL on/off, HAL adjustment
LOW on/off, LOW adjustment, Each time
you press set you advance through the
mode cycle. The diagram shows the
sequence of functions in the mode cycle.
EMS adjustment. The Emissivity(EMS)
digitally adjustable from 0.10 to 1.0, LOCK
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on/off. The lock mode is particularly useful
for continuous monitoring of temperatures.
Press the up button or down button to turn
on or off . Press the Measurement Trigger
to confirm the lock measurement mode.
The IR Thermometer will continuously
display the temperaure until press again
the Measurement Trigger.
In lock mode, press the up button or down button adjustable
the Emissivity. HAL (LOW) on/off. Press the up button or down
button to turn on or turn off. Press the Measurement Trigger to
confirm the High(Low)alarm mode. Hal(LOW) adjustment. The
high(Low) alarm adjustable form
-50 to 650 ℃(-58 ~ 1℉202 )℉
Switching C/F
Select the temperature units (℃or ℉)
using the ℃/℉ switch ( ①)
Max indicate the max record that displays
between the pressing and releasing the
"ON/OFF" button each time
MEASUREMENT OPERATION
①Hold the meter by its Handle Grip and point it toward the
surface to be measured.
②Pull and hold the Trigger to turn the meter on and begin
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testing. The display will light if the battery is good.
Replace the battery if the display does not light.
③Release the Trigger and the HOLD display icon will
appear on the LCD indicating that the reading is being held.
In HOLD status, press the UP button to turn on or off the
laser. And press the DOWN button to turn on or off the
backlight.
④The meter will automatically power down after
approximately 7 seconds after the trigger is
released.(Unless the unit is locked on)
Note: Measurement considerations
Holding the meter by its handle, point the IR Sensor toward the
object whose temperature is to be measured. The meter
automatically compensates for temperature deviations from
ambient temperature. Keep in mind that it will take up to 30
minutes to adjust to wide ambient temperatures are to be
measured followed by high temperature measurements, some
time (several minutes) is required after the low (and before the
high) temperature measurements are made.
This is a result of the cooling process, which must take place
for the IR sensor.
5. BATTERY REPLACEMENT
①As battery power is not
sufficient, LCD will display
“ ” replacement with one
new battery type 9V is required.
②Open battery cover, then
take out the battery from
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instrument and replace with a new 9-Volt battery and place the
battery cover back.
6. NOTES:
zHow it Works
Infrared thermometers measure the surface temperature of an
object. The unit’s optics sense emitted, reflected, and
transmitted energy, which is collected and focused onto a
detector. The unit’s electronics translate the information into a
temperature reading, which is display on the unit. In units with
a laser, the laser is used for aiming purposes only.
zField of View
Make sure that the target is larger than the unit’s spot size.
The smaller the target, the closer you should be to it. When
accuracy is critical, make sure the target is at least twice as
large as the spot size.
zDistance & Spot Size
As the distance (D) from the object increases, the spot size (S)
of the area measured by the unit becomes larger. See: Fig: 1.
zLocating a hot Spot
To find a hot spot aim the thermometer outside the area of
interest, then scan across with an up and down motion until
you locate hot spot.
zReminders
①Not recommended for use in measuring shiny or polished
metal surfaces ( stainless steel, aluminum, etc.).See
Emissivity
②The unit cannot measure through transparent surfaces such as
glass. It will measure the surface temperature of the glass
instead.
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