Kyoritsu Electrical Instruments Works, Ltd. KEW 5515 User manual

Instruction manual
KEW 5515
Hand-held Infrared Thermometer

1
1. Safety precautions
This instruction manual contains warnings and safety rules which must be
observed by the user to ensure safe operation of the instrument and retain it
in safe condition.
Therefore, read through these operating instructions before using the
instrument.
1-1. DANGER
The connector for thermocouple is not insulated. Do not make measurement
using a thermocouple when there is a risk of electrical shock hazard.
1-2. WARNING
KEW5515 is one of the portable laser applied instruments which are regulated
by the consumer product safety law.
Do not look directly into the laser.
Do not point the laser directly at persons or animals.
When measuring a reflective object such as mirrors, take extra caution so
as not to look diffuse reflections.
Keep out of reach of child or person who doesn’t have the Product
handling knowledge.
Use the Product only as specified. Do not disassemble or modify the
Product.
1-3. CAUTION
Please follow the precautions below for use to keep the instrument’s functions
proper and to enable accurate measurement.
Do not contact this product with a measuring object.
This is a contactless thermometer. Contact with a hot section may cause
un-repairable damages or inaccurate readings.
Do not damage the measuring window (plastic lens).
Do not let a foreign object penetrate the measuring window, or drop a hard
object on the measuring window.
This instrument applies precise optical system. Do not give an excessive
shock to the instrument.
Do not bring the instrument closer to an electrostatic object.
Emissivity of this instrument can be selected. When the emissivity setting is
different from that of a measuring object, an inaccurate reading will occur.
The sudden changes of the ambient temperature will cause inaccurate
Contents
1.Safetyprecautions･･･････････････････････････････････････････････1
1-1.DANGER･･･････････････････････････････････････････････････1
1-2.WARNING･･････････････････････････････････････････････････1
1-3.CAUTION･･････････････････････････････････････････････････1
1-4.Environmentalprecautions･･･････････････････････････････････2
1-5.Maintenance････････････････････････････････････････････････2
1-6.Relationofdistanceandmeasuringdiameter･･･････････････････2
2.Features････････････････････････････････････････････････････････3
3.Specifications･･･････････････････････････････････････････････････4
4.Nameofeachpart･･････････････････････････････････････････････ 5
4-1.Body･･････････････････････････････････････････････････････ 5
4-2.Displaypart(Buttons)････････････････････････････････････････6
5.Gettingstarted･･･････････････････････････････････････････････････7
5-1.Measurementmodeandparametersettingmode･･･････････････7
5-2.Otherfunctions･･････････････････････････････････････････････8
6.Batteryreplacement･･････････････････････････････････････････････9
7.Settingemissivity(reference)････････････････････････････････････ 10

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1
—
1
1. Safety precautions
This instruction manual contains warnings and safety rules which must be
observed by the user to ensure safe operation of the instrument and retain it
in safe condition.
Therefore, read through these operating instructions before using the
instrument.
1-1. DANGER
The connector for thermocouple is not insulated. Do not make measurement
using a thermocouple when there is a risk of electrical shock hazard.
1-2. WARNING
KEW5515 is one of the portable laser applied instruments which are regulated
by the consumer product safety law.
Do not look directly into the laser.
Do not point the laser directly at persons or animals.
When measuring a reflective object such as mirrors, take extra caution so
as not to look diffuse reflections.
Keep out of reach of child or person who doesn’t have the Product
handling knowledge.
Use the Product only as specified. Do not disassemble or modify the
Product.
1-3. CAUTION
Please follow the precautions below for use to keep the instrument’s functions
proper and to enable accurate measurement.
Do not contact this product with a measuring object.
This is a contactless thermometer. Contact with a hot section may cause
un-repairable damages or inaccurate readings.
Do not damage the measuring window (plastic lens).
Do not let a foreign object penetrate the measuring window, or drop a hard
object on the measuring window.
This instrument applies precise optical system. Do not give an excessive
shock to the instrument.
Do not bring the instrument closer to an electrostatic object.
Emissivity of this instrument can be selected. When the emissivity setting is
different from that of a measuring object, an inaccurate reading will occur.
The sudden changes of the ambient temperature will cause inaccurate
1. Safety precautions

—
2
—
2
readings. Wait a while to let the temperature of the instrument stabilize, and
then measure.
Remove the battery from the instrument, if the instrument is not in use for a
long period or is put in storage.
1-4. Environmental precautions
Do not use or store the instrument in a location where the instrument is
exposed to direct sunlight, dust, lampblack and corrosive gas, or where the
temperature and/ or humidity is high. Otherwise the measuring window gets
soiled or deteriorated, which causes inaccurate readings.
This instrument is not water-proof. Do not use in water or liquid nor make
measurements or store where it may get wet.
Keep the instrument away from an object which radiates a strong
electromagnetic wave.
1-5. Maintenance
Enclosure
Clean it with a soft cloth. To remove heavy stains, wipe it with a cloth wrung
out with diluted neural detergent.
Cautions:
Do not use chemical agents such as thinner, benzin or alcohol since these
may cause a crack or fog on the surface of the measuring window, and
consequently it may change the infrared radiation transmittance of the
plastic lens.
1-6. Relation of distance and measuring diameter
The relation between the distance and measuring diameter is as follows.
However, the ratio between distance and measuring diameter varies depending
on a distance. The more the distance increases, the larger area is needed.
3
2. Features
This is a contactless handheld infrared thermometer.
Temperature measurement with a K-type thermocouple is also possible.
Alarm function
The upper and lower temperature limits can be set. The red blinking
backlight indicates that the measured value is below or over the pre-set
limits.
Auto-power-off function
To save battery life, the power is shut off automatically if no key is pressed
for 6 seconds.
3. Specifications
Measuring range -32 to 535ºC
Accuracy ±3.0ºC:-32 to -20 ºC, ±2.0ºC: -20 to +100ºC, ±2%:100 to 535ºC
Infrared spectral band 5 to 14μm
Repeatability Within ±1ºC
Resolution 0.1ºC
Response 500ms
Emissivity Variable between 0.10 and 1.00 (by 0.01 steps): Before shipment: 0.95
Measuring diameter 1000mm/ø78mm (Distance/ Measuring dia.: 12:1)
Battery One 9 V Dry cell battery (006P)
Operating temperature
& humidity 0 to 50ºC/ 10 to 90% RH
3
2. Features
This is a contactless handheld infrared thermometer.
Temperature measurement with a K-type thermocouple is also possible.
Alarm function
The upper and lower temperature limits can be set. The red blinking
backlight indicates that the measured value is below or over the pre-set
limits.
Auto-power-off function
To save battery life, the power is shut off automatically if no key is pressed
for 6 seconds.
3. Specifications
Measuring range -32 to 535ºC
Accuracy ±3.0ºC:-32 to -20 ºC, ±2.0ºC: -20 to +100ºC, ±2%:100 to 535ºC
Infrared spectral band 5 to 14μm
Repeatability Within ±1ºC
Resolution 0.1ºC
Response 500ms
Emissivity Variable between 0.10 and 1.00 (by 0.01 steps): Before shipment: 0.95
Measuring diameter 1000mm/ø78mm (Distance/ Measuring dia.: 12:1)
Battery One 9 V Dry cell battery (006P)
Operating temperature
& humidity 0 to 50ºC/ 10 to 90% RH
3
2. Features
This is a contactless handheld infrared thermometer.
Temperature measurement with a K-type thermocouple is also possible.
Alarm function
The upper and lower temperature limits can be set. The red blinking
backlight indicates that the measured value is below or over the pre-set
limits.
Auto-power-off function
To save battery life, the power is shut off automatically if no key is pressed
for 6 seconds.
3. Specifications
Measuring range -32 to 535ºC
Accuracy ±3.0ºC:-32 to -20 ºC, ±2.0ºC: -20 to +100ºC, ±2%:100 to 535ºC
Infrared spectral band 5 to 14μm
Repeatability Within ±1ºC
Resolution 0.1ºC
Response 500ms
Emissivity Variable between 0.10 and 1.00 (by 0.01 steps): Before shipment: 0.95
Measuring diameter 1000mm/ø78mm (Distance/ Measuring dia.: 12:1)
Battery One 9 V Dry cell battery (006P)
Operating temperature
& humidity 0 to 50ºC/ 10 to 90% RH

—
3
—
2
readings. Wait a while to let the temperature of the instrument stabilize, and
then measure.
Remove the battery from the instrument, if the instrument is not in use for a
long period or is put in storage.
1-4. Environmental precautions
Do not use or store the instrument in a location where the instrument is
exposed to direct sunlight, dust, lampblack and corrosive gas, or where the
temperature and/ or humidity is high. Otherwise the measuring window gets
soiled or deteriorated, which causes inaccurate readings.
This instrument is not water-proof. Do not use in water or liquid nor make
measurements or store where it may get wet.
Keep the instrument away from an object which radiates a strong
electromagnetic wave.
1-5. Maintenance
Enclosure
Clean it with a soft cloth. To remove heavy stains, wipe it with a cloth wrung
out with diluted neural detergent.
Cautions:
Do not use chemical agents such as thinner, benzin or alcohol since these
may cause a crack or fog on the surface of the measuring window, and
consequently it may change the infrared radiation transmittance of the
plastic lens.
1-6. Relation of distance and measuring diameter
The relation between the distance and measuring diameter is as follows.
However, the ratio between distance and measuring diameter varies depending
on a distance. The more the distance increases, the larger area is needed.
3
2. Features
This is a contactless handheld infrared thermometer.
Temperature measurement with a K-type thermocouple is also possible.
Alarm function
The upper and lower temperature limits can be set. The red blinking
backlight indicates that the measured value is below or over the pre-set
limits.
Auto-power-off function
To save battery life, the power is shut off automatically if no key is pressed
for 6 seconds.
3. Specifications
Measuring range -32 to 535ºC
Accuracy ±3.0ºC:-32 to -20 ºC, ±2.0ºC: -20 to +100ºC, ±2%:100 to 535ºC
Infrared spectral band 5 to 14μm
Repeatability Within ±1ºC
Resolution 0.1ºC
Response 500ms
Emissivity Variable between 0.10 and 1.00 (by 0.01 steps): Before shipment: 0.95
Measuring diameter 1000mm/ø78mm (Distance/ Measuring dia.: 12:1)
Battery One 9 V Dry cell battery (006P)
Operating temperature
& humidity 0 to 50ºC/ 10 to 90% RH
3
2. Features
This is a contactless handheld infrared thermometer.
Temperature measurement with a K-type thermocouple is also possible.
Alarm function
The upper and lower temperature limits can be set. The red blinking
backlight indicates that the measured value is below or over the pre-set
limits.
Auto-power-off function
To save battery life, the power is shut off automatically if no key is pressed
for 6 seconds.
3. Specifications
Measuring range -32 to 535ºC
Accuracy ±3.0ºC:-32 to -20 ºC, ±2.0ºC: -20 to +100ºC, ±2%:100 to 535ºC
Infrared spectral band 5 to 14μm
Repeatability Within ±1ºC
Resolution 0.1ºC
Response 500ms
Emissivity Variable between 0.10 and 1.00 (by 0.01 steps): Before shipment: 0.95
Measuring diameter 1000mm/ø78mm (Distance/ Measuring dia.: 12:1)
Battery One 9 V Dry cell battery (006P)
Operating temperature
& humidity 0 to 50ºC/ 10 to 90% RH
2. Features
3. Specifications
3
2. Features
This is a contactless handheld infrared thermometer.
Temperature measurement with a K-type thermocouple is also possible.
Alarm function
The upper and lower temperature limits can be set. The red blinking
backlight indicates that the measured value is below or over the pre-set
limits.
Auto-power-off function
To save battery life, the power is shut off automatically if no key is pressed
for 6 seconds.
3. Specifications
Measuring range -32 to 535ºC
Accuracy ±3.0ºC:-32 to -20 ºC, ±2.0ºC: -20 to +100ºC, ±2%:100 to 535ºC
Infrared spectral band 5 to 14μm
Repeatability Within ±1ºC
Resolution 0.1ºC
Response 500ms
Emissivity Variable between 0.10 and 1.00 (by 0.01 steps): Before shipment: 0.95
Measuring diameter 1000mm/ø78mm (Distance/ Measuring dia.: 12:1)
Battery One 9 V Dry cell battery (006P)
Operating temperature
& humidity 0 to 50ºC/ 10 to 90% RH

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4
—
4
Auto power off If no key is pressed for 6 seconds, the power is shut off automatically.
LCD display LCD with backlight (blinks in red when alarm function is activated)
Collimation Laser beam (630 to 670nm 1mW or less) specifies the center.
Display Max/ Min/ Average value display
Dual display Simultaneous display: Measured value and either of max, min,
average or thermocouple value.
Thermocouple K-type
Measuring range of
thermocouple -199 to 1372ºC
Accuracy of
thermocouple ±(1.5%+1ºC): -40 to 1372ºC
Dimension 180 × 130 × 40mm
Weight Approx. 195g (excluding battery)
Accessories Carrying case, One 9 V Dry cell battery (006P), Instruction manual
Approved standards EN61326, IEC61000-4-2, IEC61000-4-3, IEC61000-4-8,
IEC60825-1, CE Mark
Environmental
standards EU RoHS Directive compliant
5
4. Name of each part
4-1. Body
Display part
Laser aperture
Measuring window
Connector for
thermocouple
Trigger
Battery compartment
LASER RADIATION
DO NOT STARE INTO BEAM
CLASS 2 LASER PRODUCT

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5
—
5
4. Name of each part
4-1. Body
Display part
Laser aperture
Measuring window
Connector for
thermocouple
Trigger
Battery compartment
LASER RADIATION
DO NOT STARE INTO BEAM
CLASS 2 LASER PRODUCT
5
4. Name of each part
4-1. Body
Display part
Laser aperture
Measuring window
Connector for
thermocouple
Trigger
Battery compartment
LASER RADIATION
DO NOT STARE INTO BEAM
CLASS 2 LASER PRODUCT
4. Name of each part

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6
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6
4-2. Display part (Buttons)
①Battery mark ..................... Appears to indicate low battery.
②Laser mark ....................... Appears when powering on the instrument.
Buzzer mark ..................... Appears when alarm function (P. 8) is enabled.
③Thermocouple TC ............ Lights up while measuring with K-
type thermocouple.
Emissivity [EMS] ............. Lights up while setting emissivity.
④Upper limit alarm [HAL] .... Lights up while setting an upper limit for alarm.
Lower limit alarm [LAL] ..... Lights up while setting a lower limit for alarm.
⑤Cursor button (Down) ....... Alters number.
⑥Buzzer button ................... Turns on/ off the buzzer sound.
⑦SCAN ............................... Blinks during measurement.
HOLD ............................... Lights up while the display retains its last
measurement (P. 8).
⑧Unit ................................... Indicates measurement unit ºC ( P. 9).
⑨Main display ..................... Shows measured values.
⑩MAX/ MIN/ AVE ................ Lights up when using each function (P. 7).
⑪Sub display....................... Shows the selected measurement mode and
values in parameter setting mode (P. 7).
⑫Cursor button (Up)............ Alters number.
⑬Function button................. Switches between measurement and parameter
setting modes ( P. 7).
5. Getting started
5-1. Measurement mode and parameter setting mode
Pull the trigger on the instrumenttotake a measurement. Press the Fbutton
(Function button)to use otherfunctions.
The main display shows measured values and the sub display shows values
obtained with each function. The following flow chart shows the sequence and
corresponding action.
Measurement mode
Parameter setting mode
SCAN
●MAX：Shows the maximum value taken
during one measurement on the sub display.
●MIN：Shows the minimum value taken during
one measurement on the sub display.
●SCAN：Shows measured values.
●AVG：Averages the values taken in one
measurement and shows it on the sub
display.
●TC：Shows measured values with using
K-type thermocouple.
MAX
TC
●EMS：Shows emissivity. (P. 10) Use the
cursor buttons to alter emissivity.
●HAL：Shows the upper limit for alarm. (P. 8)
Use the cursor buttons to alter the limit value.
Red backlight blinks when a measured value
exceeds this limit.
●LAL：Shows the lower limit for alarm. (P. 8)
Use the cursor buttons to alter the limit value.
Red backlight blinks when a measured value
falls behind thislimit.
* Auto power off function activates in 6 seconds. When the display becomes blank due to
this power off function, pull the trigger.
HAL
MIN
AVG
LAL
EMS

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7
—
5. Getting started
5-1. Measurement mode and parameter setting mode
Pull the trigger on the instrumenttotake a measurement. Press the Fbutton
(Function button)to use otherfunctions.
The main display shows measured values and the sub display shows values
obtained with each function. The following flow chart shows the sequence and
corresponding action.
Measurement mode
Parameter setting mode
SCAN
●MAX：Shows the maximum value taken
during one measurement on the sub display.
●MIN：Shows the minimum value taken during
one measurement on the sub display.
●SCAN：Shows measured values.
●AVG：Averages the values taken in one
measurement and shows it on the sub
display.
●TC：Shows measured values with using
K-type thermocouple.
MAX
TC
●EMS：Shows emissivity. (P. 10) Use the
cursor buttons to alter emissivity.
●HAL：Shows the upper limit for alarm. (P. 8)
Use the cursor buttons to alter the limit value.
Red backlight blinks when a measured value
exceeds this limit.
●LAL：Shows the lower limit for alarm. (P. 8)
Use the cursor buttons to alter the limit value.
Red backlight blinks when a measured value
falls behind thislimit.
* Auto power off function activates in 6 seconds. When the display becomes blank due to
this power off function, pull the trigger.
HAL
MIN
AVG
LAL
EMS
5. Getting started

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8
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8
5-2. Other functions
K-type thermocouple measurement
Plug a K-type thermocouple into the connector for thermocouple, and press
the function button to select TC function. Measured values using a
thermocouple are displayed on the sub display.
Alarm function
Red backlight blinks when a measured value exceeds or falls behind the values
which are set on HAL and LAL functions. On both functions, it is possible to enable
or disable the buzzer sound.
HOLD function
The measured value is held and being displayed for 6 seconds after
releasing the trigger.
Low battery warning
Battery mark appears when the battery voltage becomes low.

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9
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8
5-2. Other functions
K-type thermocouple measurement
Plug a K-type thermocouple into the connector for thermocouple, and press
the function button to select TC function. Measured values using a
thermocouple are displayed on the sub display.
Alarm function
Red backlight blinks when a measured value exceeds or falls behind the values
which are set on HAL and LAL functions. On both functions, it is possible to enable
or disable the buzzer sound.
HOLD function
The measured value is held and being displayed for 6 seconds after
releasing the trigger.
Low battery warning
Battery mark appears when the battery voltage becomes low.
9
6. Battery replacement
When the battery is low, battery mark appears on the display.
Replace the battery with new one. When nothing is displayed on the display if
attempted, it may also be battery exhaustion. Replace the battery with new one.
Open the battery cover as below figure shows, and insert a new battery with
correct polarity, and then close the cover.
Enable/ disable laser (Enable by default)
Caution: Always set the measurement unit to ºC.
Dry cell battery 9 V (006P)
6. Battery replacement

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10
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10
7. Setting emissivity (reference)
Quantity of infrared emitted radiation from objects depends on the objects’
material, surface conditions, measuring temperatures and so on. The table
below shows emissivity of some objects. Please note that these values are just
for reference. Please also refer to the estimated emissivity using the separately
sold black body tape MODEL8085.
Material Emissivity Material Emissivity
Water, Ice 0.98 Cloth, Fabric (colored) 0.95
Soil 0.92 to 0.96 Leather, Fur 0.96
Concrete (wet) 0.96 to 0.98 Human skin 0.99
Concrete (dry) 0.91 to 0.95 Vegetable, Fruit 0.98
Ceramics 0.85 to 0.95 Dough 0.98
Stone, Asbestos 0.92 Meat 0.98
Plastics 0.90 to 0.95 Copper oxide 0.50 to 0.60
Rubber (black) 0.95 Ferric oxide 0.70 to 0.80
Wood 0.98 Painted surface 0.80
Paper 0.92 Tile 0.80
Estimated emissivity using the black body tape
If a measuring object accepts sticking of adhesive tape, stick a piece of the
black body tape (emissivity: 0.94) to the object, and measure the temperature
after setting the emissivity to 0.94.
* Black body is a substance which absorbs all incident radiation: no trans-
mission and no reflection, and would have an emissivity value of 1.
* Infrared thermometers can easily measure temperature from a distance with
safe. They can be used for electrical or equipment maintenance, building
control and process monitoring and other applications.
7. Setting emissivity (reference)

MEMO

4-21 92-1954D
DISTRIBUTOR
Kyoritsu reserves the rights to change specifications or designs
describedinthismanualwithoutnoticeandwithoutobligations.