Power Fist 8001782 User manual

DigitalInfrared
Thermometer
8
80 00 01 17 78 82 2
Owner’s Manual

Introduction
This instrument is a portable, easy to use compact-size digital thermometer
with laser sighting designed for one hand operation. The meter comes with
a backlit LCD display, auto-hold function, and auto power down (10
seconds) after releasing trigger to extend battery life.
SafetyInformation
Read the safety and operation instructions before using the digital infrared
thermometer.
DANGER
Pressing the trigger turns the laser beam on and off. Exercise extreme care
and do not allow the laser beam to enter your eye or those of any other
person or animal.
• Do not look directly into the laser light from the optical system
• When measuring the temperature of an object which has a mirror finish,
be careful not to allow the laser light beam to be reflected off the surface
into your eyes or those of another person
• Do not allow the laser beam to impinge upon any ignitable/explosive gas
CAUTION
• Do not use the unit near any device that generates strong electromagnetic
radiation or near a static electrical charge, as these may cause inaccurate
readings
• Do not use the unit where it may be exposed to corrosive or explosive
gasses. The unit could be damaged, or explosion may occur
• Do not keep or use this unit in an environment where it will be directly
illuminated by sunshine, or where it will be exposed to high temperatures,
high humidity or condensation. If you do, it may become deformed, its
insulation may be damaged, or it may no longer function according to
specifications
• Do not point the lens at the sun or any other source of strong light,as this
could damage the sensor
• Do not contact the lens against the object whose temperature is to be
measured, get the lens dirty, allow it to be scratched, or allow any foreign
material to adhere to it. Doing so may cause inacurate readings
• Do not touch or hold the thermometer by the front case. Temperature
readings can be affected by heat from the hand
• Do not place the meter on or around hot objects (158°F [70°C]). It may
cause damage to the case

• If the meter is exposed to significant changes in ambient temperature (hot
to cold or cold to hot) allow 20 minutes for temperature stabilization
before taking measurement
• Condensation may form on the lens when going from a cold to hot
environment - wait 10 minutes for condensation to dissipate before taking
measurements
• This unit is not constructed to be water proof or dust proof, so do not use
it in a very dusty environment or in one where it will get wet
Specifications
General
Display: 3-1/2 digit LCD with maximum reading of 1999
Low battery indication: The is displayed when the battery voltage
drops below the operating level
Measurement rate: 0.25 second, nominal
Operating environment: 32°F to 122°F (0°C to 50°C) at <70% relative
humidity
Storage temperature: -4°F to 140°F (-20°C to 60°C)
Auto power off: 10 seconds
Standby consuming current: <5µA
Battery: Standard 9V battery
Average battery life: 9 hours
Dimensions: 6" x 4" x 1-1/2" (150 mm x 150 mm x 42 mm)
Laser Specifications
Laser safety classification of class 2
Wave length: Red (630 ~ 670nm)
Operating distance: 2 to 50 feet
Power output: <1mW
Electrical Information
Temperature Range: -22°F to 1022°F (-30°C to 550°C)
Display Resolution: 0.5/1°C (Auto), 1°F
Accuracy: ± 4°F (2°C) on -22°F to 212°F (-30°C to 100°C)
± 2% reading on 213°F to 1022°F (101°C to 550°C)
Temperature Coefficient: ± 0.2% of reading or ± 0.36°F (0.2°C), whichever
is greater, change in accuracy per degree
fahrenheit/celsius change in ambient operating
temperature above 82.4°F (28°C) or below 64.4°F
(18°C)

Response Time: 0.25 second
Spectral Response: 6 to 14 mm nominal
Fixed emissivity: 0.95ε
Detection Element: Thermopile
Optical Lens: Fresnel lens
Sighting: Single beam laser marker <1mW (class 2)
OperatingInstructions
Trigger
Laser and backlit turn on at the same time as the power
Pull the trigger to turn on the meter when power off
If the trigger is released the value will be held and “Hold” displayed
Selecting the Temperature Scale
Readings are displayed in either degrees Celsius (°C) or degrees Fahrenheit
(°F). When the thermometer is turned on, it is set to the temperature scale
that was in use when the thermometer was last turned off. To change the
temperature scale, Pull off the battery cap and then slide the switch to select
°C or °F.
Operation
1. Take the protective cap off and then pull the trigger to turn on the meter
2. Point the lens at the object whose temperature is to be measured
3. Referring to the spot size figure below, aim the laser beam at the object
whose temperature is to be measured.
4. Pull the trigger. Measurement is performed as long as trigger is held.
5. Put the cap on to extend life of the sensor and to avoid danger caused by
misuse of the laser
Note: Although the field of measurement (or field of view) and the spot size
almost coincide, actually the field of measurement corresponds to the
diameter for 90% optical response. The object whose temperature is
to be measured needs to be larger than the measurement diameter
(spot of size) by an adequate margin at least 1.5 to 2 times larger.
Temperature
scale selection
switch

Field of view: 3-7/8" at 39"
Spot size increases with
distance from the probe tip as
shown (spot diameter measured
at 90% energy)
MeasurementConsiderations
Theory of measurement
Every object emits infrared energy in accordance with its temperature. By
measuring the amount of this radiant energy, it is possible to determine the
temperature of the emitting object.
About Infrared
Infrared radiation is a form of light (electromagnetic radiation), and has the
property that it passes easily through air while it is easily absorbed by solid
matter. With an emission thermometer which operates by detecting infrared
radiation, accurate measurement is possible, irrespective of the air
temperature of the measurement distance.
Emission Thermometer Structure
Infrared radiation which has been emitted from the object is focused upon
an infrared radiation sensor, via an optical system. This includes a lens
which is transparent to infrared radiation, and a 5.3 µm cut off filter. The
output signal from the infrared radiation sensor is input to an electronic
circuit along with the output signal from a standard temperature
(thermopile).
Emissivity
All objects emit infrared energy. The amount of energy emitted is
proportional to the object's temperature and its ability to emit INFRA-RED
energy. This ability, called emissivity, is based upon the material that the
object is made of and its surface finish. Emissivity values range from 0.10
for a very reflective object to 1.00 for a black body. The emissivity of this
themometer is set at a value of 0.95 which covers 90% of typical
applications.
• If the surface to be measured is covered with frost or other material, clean
it to expose the surface.
• If the surface to be measured is highly reflective, apply masking tape or
matte finish black paint to the surface.
• If the meter seems to be giving incorrect readings, check the front cone.
There may be condensation or debris obstructing the sensor; clean per
instructions in the maintenance section.
25 cm 50 cm 1 m
Distance to object Laser
marker
diameter
16 mm

Maintenance
Battery replacement
1. Power is supplied by a 9 volt cell
battery.
2. Remove the battery cover by
gently sliding it toward the bottom
of the meter.
3. Remove and disconnect the old
battery from the meter and replace
with a new unit. Wind the excess
lead length and put the top of the
battery beneath the the battery
chamber. Install the battery and
replace the battery cover.
Cleaning
Periodically wipe the case with a damp cloth and detergent, do not use
abrasives or solvents.
Substance
Asphalt
Concrete
Cement
Sand
Earth
Water
Ice
Snow
Glass
Ceramic
Marble
Plaster
Mortar
Brick (red)
Cloth (black)
Human skin
Lather
Charcoal (powder)
Lacquer
Lacquer (matte)
Rubber (black)
Plastic
Timber
Paper
Chromium oxides
Copper oxides
Iron oxides
Textiles
Thermal emissivity
0.90 to 0.98
0.94
0.96
0.90
0.92 to 0.96
0.92 to 0.96
0.96 to 0.98
0.83
0.90 to 0.95
0.90 to 0.94
0.94
0.80 to 0.90
0.89 to 0.91
0.93 to 0.96
0.98
0.98
0.75 to 0.80
0.96
0.80 to 0.95
0.97
0.94
0.85 to 0.95
0.90
0.70 to 0.94
0.81
0.78
0.78 to 0.82
0.90
Avoid exposure:
Laser radiation is emitted from the
aperture
Caution
Laser radiation - do not stare into beam
Power Out: <1mW
Wave length: Red (630 to 670 nm)
Laser safety classification: Class II