Eastern Energy DT-8818 Series User manual

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Non-Contact Infrared Thermometers
DT-8818-DT-8829 series
Operation Manual
TABLE OF CONTENTS
INTRODUCTION………………………………………
FEATURES ………………………………………
WIDE RANGE APPLICATION ……………………
SAFETY …………………………………………
DISTANCE & SPOT SIZE…………………………
SPECIFICATIONS………………………………
FRONT PANEL DESCRIPTION…………………
INDICATOR………………………………………
MEASURMENT OPERATION……………………
BATTERY REPLACEMENT………………………
NOTES……………………………………………
MAINTENANCE & CLEARING……………………
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www.eastern-energy.com
Eastern Energy Co., Ltd.
40/4 Vitoondumri Rd., Banbueng
Banbueng, Chonburi, Thailand
Tel: [phone]
7
[email protected].th
www.eastern-energy.com

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INTRODUCTION
Thank you for purchase of the 8818/8819/8828/8829 Series IR
Thermometer. The 8818/8819/8828/8829 Series is capable of
non-contact (infrared) temperature measurements at the touch of a
button. The built-in laser pointer increases target accuracy while the
backlit 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
 Precise non-contact measurements
 High distance to target ratio measures smaller surface areas at
greater distances
 Widest temperature range
 Unique flat surface, modern housing design
 Built-in laser pointer
 Automatic Data Hold
 °C/°F switch able button
 Fixed emissivity (0.95) covers 90% of surface applications
 Backlit LCD display
 Built-in laser pointer
 Automatic selection range and Resolution to 0.1oor 1o
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.
1. SAFETY
 Use extreme caution when the laser beam is turned on.
 Do not let the beam enter your eye, another person’s eye or the
eye of an animal.
 Be careful no to let the beam on a reflective surface strike your
eye.
 Do 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.
Fig: 1
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2. SPECIFICATIONS
 General specifications
DISPLAY 3-1/2 digit (1999count) LCD with backlighting
TEMPERATURE
RANGE
MODEL: 8818 -50.0°C to 550°C/-58.0°Fto 1022°F
MODEL: 8819 -50.0°C to 750°C/-58.0°Fto 1382°F
MODEL: 8828 -50.0°C to 1000°C/-58.0°Fto 1832°F
MODEL: 8829 -50.0°C to 1000°C/-58.0°Fto 1832°F
FIELD OF VIEW
MODEL: 8818 D/S = Approx. 12:1 ratio
(D = distance, S = spot)
(Has 90% encircled energy at the focal
point)
MODEL: 8819
MODEL: 8828
MODEL: 8829
D/S = Approx. 50:1 ratio
(D = distance, S = spot)
(Has 90% encircled energy at the focal
point)
DISPLAY RESOLUTION 0.1O up to 200O,1O over 200O
EMISSIVITY 0.95 fixed value
RESPONSE TIME Less than 1 second
OVER RANGE INDICATION LCD will show “1”
POLARITY Automatic (no indication for positive polarity);
Minus (-) sign for negative polarity.
DIODE LASER Output <1mW, Wavelength 630~670nm,
class 2 (II) Laser product
SPECTRAL RESPONSE 8~14um
POWER OFF Automatic shut off after 7 seconds, approx.
OPERATING TEMP. 0°C to 50°C (32°F to 122°F)
STORAGE TEMP. -20oC to 60oC(-4oF to 140oF)
RELATIVE HUMIDITY
10%~90%RH operating, <80%RH storage
POWER SUPPLY
9V battery, NEDA 1604A or IEC 6LR61, or equivalent
WEIGHT 290g (10.2 oz.)
SIZE 100 x 56 x 230mm (3.9 x 2.2 x 9.0”)
Safety “ CE ” Comply with EMC
 Infrared thermometer specifications
MODEL: 8818
Range (Automatic selection 0.1 oC/ 1oC) Resolution Accuracy
-50.0oC to 200.0 oC
-50.0oC to -20.0 oC
0.1 oC
+ 5 oC;
-20.0oC to 200.0 oC ±1.5% of reading ± 2ºC;
201 oC to 550 oC 1 oC ±2.0% of reading ± 2ºC;
MODEL: 8819
Range(Automatic selection 0.1oC/ 1oC) Resolution Accuracy
-50.0oC to 200.0 oC -50.0oC to -20.0 oC 0.1 oC + 5 oC;
-20.0oC to 200.0 oC ± 1.5% of reading ± 2ºC;
201 oC to 538 oC 1 oC ± 2.0% of reading ± 2ºC ;
539 oC to 750 oC ± 3.5% of reading ± 5ºC .
Range (Automatic selection 0.1°F / 1°F) Resolution Accuracy
-58.0℉ to 200.0℉ -58.0℉ to -4.0℉ 0.1℉ + 9℉;
-4.0℉ to 200.0℉ ± 1.5% of reading ± 4℉;
201℉ to 1022℉ 1 ℉ ± 2.0% of reading ± 4℉
Range (Automatic selection 0.1 ℉/ 1℉) Resolution Accuracy
-58.℉ to 200.0℉ -58.0 ℉ to -4.0 ℉ 0.1℉ + 9℉;
-4.0 ℉ to 200.0 ℉ ± 1.5% of reading±4℉;
201℉ to 1000℉
1 ℉
± 2.0% of reading ±4℉;
1001℉ to 1382℉ ± 3.5% of reading ± 9℉
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MODEL: 8828
Range (Automatic selection 0.1 oC/ 1oC) Resolution Accuracy
-50.0oC to 200.0oC -50.0oC to -20.0 oC 0.1 oC ± 5 oC;
-20.0oC to 200.0 oC ± 1.5% of reading ± 2ºC;
201 oC to 538 oC 1 oC ± 2.0% of reading ± 2ºC ;
539 oC to 1000 oC ± 3.5% of reading ± 5ºC .
MODEL: 8829
Range (Automatic selection 0.1 oC/ 1oC) Resolution Accuracy
-50.0oC to 200.0 oC -50.0oC to -20.0 oC 0.1 oC ± 5 oC;
-20.0oC to 200.0 oC ±1.5% of reading±2ºC;
201 oC to 538 oC 1 oC ±2.0%of reading ± 2ºC;
539 oC to 1000oC ± 3% of reading ± 5ºC .
Note:
 Accuracy: Given at 18ºC to 28ºC(64℉ to 82℉), less than 80% RH.
 Emissivity: 0.95 fixed value
 Field 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.
3. FRONT PANEL DESCRIPTION
1. IR sensor
2. Laser pointer beam
3. LCD Display
4.℉ select key
5.℃ select key
6. Laser select key
7. Backlight select key
8. Measurement Trigger
9. Handle Grip
10. Battery Cover
4. NDICATOR
1. Digital readout
2. Temperature ℃ (Celsius)
3. Temperature ℉ (Fahrenheit)
4. Measuring indication
5. Data Hold
6. LOW battery indicator
7. Laser Point
8. Fixed emissivity (0.95)
Range (Automatic selection 0.1 ℉/ 1℉) Resolution Accuracy
-58.0℉ to 200.0 ℉ -58.0℉ to -4.0℉ 0.1℉ ± 9℉;
-4.0℉ to 200.0℉
± 1.5% of reading ± 4℉;
201℉ to 1000℉ 1 ℉ ± 2.0% of reading ±4℉;
1001℉ to 1832℉ ± 3.5% of reading ± 9℉
Range (Automatic selection 0.1 ℉/ 1℉) Resolution Accuracy
-58.0℉ to 200.0℉ -58.0℉ to -4.0℉ 0.1℉ ± 9℉;
-4.0℉ to 200.0℉ ± 1.5% of reading ± 4℉;
201℉ to 1000℉ 1 ℉ ± 2.0% of reading ±4℉;
1001℉ to 1832℉ ± 3 % of reading ± 9℉ .
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5. MEASURMENT OPERATION
① Hold the meter by its Handle Grip and point it toward the
surface to be measured.
② Pull and hold the Trigger to turn the meter on and begin
testing. The display will light if the battery is good. Replace
the battery if the display does not light.
③ While measuring, the SCAN display icon will appear in the
upper left hand corner of the LCD.
④ While continuing to pull the Trigger:
a. Push the Laser button to turn on the laser pointer. When the
laser is on the laser icon will appear on the LCD over
the temperature. Aim the red beam approximately a half inch
above the point of test (pressing the Laser button again turns
the laser off).
b. Select the temperature units (oC or oF) using the oC and oF
buttons.
c. Push the Backlight key to turn on the LCD backlighting
function.
⑤ Release the Trigger and the HOLD display icon will appear
on the LCD indicating that the reading is being held.
⑥ The meter will automatically power down after approximately
7 seconds after the trigger is released.
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.
6. BATTERY REPLACEMENT
① As battery power is not sufficient, LCD will display “ ”
replacement with one new battery type 9V is required.
② Open battery cover, then take out the battery from instrument
and replace with a new 9-Volt battery and place the battery
cover back.
Low battery indicator
Open the battery cover
9V battery
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7. NOTES:
 How 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.
 Field 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.
 Distance & 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.
 Locating 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.
 Reminders
① Not recommended for use in measuring shiny or
polished metal surfaces ( stainless steel, aluminum,
etc.).See Emissivity
② The unit cannot measure through transparent
surfaces such as glass. It will measure the surface
temperature of the glass instead.
③ .Steam, dust, smoke, etc., can prevent accurate
measurement by obstructing the unit’s optics.
 Emissivity
Most (90% of typical applications) organic materials and
painted or oxidized surfaces have an emissivity of 0.95
(pre-set in the unit). Inaccurate readings will result from
measuring shiny or polished metal surfaces. To
compensate, cove the surface to be measured with
masking tape or flat black paint. Allow time for the tape
to reach the same temperature as the material
underneath it. Measure the temperature of the tape or
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painted surface.
Emissivity Values
Substance Thermal emissivity Substance Thermal emissivity
Asphalt 0.90 to 0.98 Cloth (black) 0.98
Concrete 0.94 Human skin 0.98
Cement 0.96 Lather 0.75 to 0.80
Sand 0.90 Charcoal (powder) 0.96
Earth 0.92 to 0.96 Lacquer 0.80 to 0.95
Water 0.92 to 0.96 Lacquer (matt) 0.97
Ice 0.96 to 0.98 Rubber (black) 0.94
Snow 0.83 Plastic 0.85 to 0.95
Glass 0.90 to 0.95 Timber 0.90
Ceramic 0.90 to 0.94 Paper 0.70 to 0.94
Marble 0.94 Chromium oxides 0.81
Plaster 0.80 to 0.90 Copper oxides 0.78
Mortar 0.89 to 0.91 Iron oxides 0.78 to 0.82
Brick 0.93 to 0.96 Textiles 0.90
8. MAINTENANCE & CLEARING
 Repairs or serving aren’t covered in this manual should
only be performed by qualified personnel.
 Periodically wipe the case with a dry cloth. Don’t use
abrasives or solvents on this instrument.
 When serving, use only specified replacement parts.
www.eastern-energy.com
Eastern Energy Co., Ltd.
40/4 Vitoondumri Rd., Banbueng
Banbueng, Chonburi, Thailand
Tel: [phone]
7
[email protected].th
www.eastern-energy.com