GENERAL SPECIFICATIONS
The UEi INF225 is a professional series infrared thermometer. It features
a wide measurement range, a tight distance-to-spot ratio, a K-type
thermocouple input, dual lasers, and several calculation modes to assist
you in making the best possible measurements.
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Operating Altitude:
3000 meters
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Relative Humidity:
10~90%, non-condensing
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Operating Temperature:
32~122°F (0~50°C)
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Storage Temperature:
14~140°F (-10~60°C)
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Measurement Range:
-76~1400°F (-60~760°C)
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Emissivity:
0.10~1.00 adjustable
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Optical Resolution (Distance: Spot):
30:1
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Dimensions:
4.7 x 1.87 x 6.76”
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Weight:
9.0 oz.
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Battery Type:
2 x AAA alkaline batteries
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Battery Life:
180 hours typical; 140 hours minimum with continuous
use (alkaline batteries, without laser and backlight)
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Display Resolution:
0.1°~1.0°
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Calibration:
Accurate for one year
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Laser:
FDA and IEC Class II
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Max Output:
Less than 1mW
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Wavelength:
635~660nm
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Compliance:
21 CFR, Chapter 1, Subchapter J
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Certifications:
CE and RoHS
WARNINGS
To ensure safe operation and service of the tester, follow these instructions.
Failure to observe these warnings can result in severe injury or death.
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Do not direct laser beam into eyes, as this can cause permanent
eye damage.
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Do not use the instrument if the case is damaged in any way.
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Replace the batteries as soon as low battery indicator appears.
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Have the instrument serviced immediately if it is acting abnormally.
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Be cautious of readings of reflective materials as they may be
indicated by the instrument as cooler than they actually are
(see
Emissivity
section).
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Avoid using the instrument around strong electromagnetic fields.
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Do not apply voltage to the thermocouple probe.
SAFE PRACTICES
This instrument is designed for professionals who know the hazards
associated with their trade. While this instrument offers no foreseeable
dangers beyond its laser sight, the equipment you are servicing, as well
as the environment you're working in, can be hazardous. These are a few
common safety practices for those working around temperature critical
environments:
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Follow the manufacturer's maintenance procedures when
servicing equipment.
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Before using this instrument to determine if an area is safe to touch
or enter, verify your readings are reasonably accurate by comparison
with known measurements.
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Properly maintain your infrared thermometer and calibrate
it regularly.
THERMOMETER ATTRIBUTES
SYMBOLS
Laser
Warning or Caution
Follow safe disposal
procedures
Dangerous levels
Battery
1.
Trigger:
Initiates measurement.
2.
Thermocouple
Input:
Optional K-Type thermocouple
measurement.
3.
IR
Sensor:
Collects temperature data.
4.
Battery
Compartment:
Pops forward to store 2 x AAA batteries.
5.
Dual
Laser:
Provides an approximate target area for making measurements.
6.
LCD
Screen:
Displays measurement and additional information.
7.
Mode
Button:
Changes the mode of the secondary display.
8.
Down
Button:
Changes temperature scale, decreases threshold, decreases
emissivity, or toggles laser depending on the mode.
9.
Up
Button:
Enters auto-scan (trigger lock) mode, increases threshold, increases
emissivity, or toggles backlight depending on the mode.
OPERATING INSTRUCTIONS
Temperature Measurement
To take measurements with your INF225, aim the instrument at the object
to be measured and pull the trigger. The unit has an auto off after releasing
the trigger of 60 seconds.
Targeting
The INF225 features a dual laser to assist in targeting the area to be
measured. The distance between the two lasers approximates the diameter
of the circular spot focused on by the infrared sensor. This area will
become larger as the target surface moves further away from gun (see
Distance to Spot Ratio
for more information). The approximation will be
most accurate at a minimum distance of 30" from the INF225.
Selecting Temperature Scale
Press the Down Key while in display mode or any measurement mode
to alternate between Fahrenheit and Celsius. You can select either scale
during or after measurement, and when viewing any of the held values.
Lock Mode (Auto-Scan)
In lock mode, the INF225 will take measurements continously without
holding down the trigger. The trigger can be held down to activate the laser,
but is not required.
Auto Hold
The INF225 will hold the last temperature measured for 60 seconds after
the trigger is released. To recall this value or associated calculations press
the MODE key to activate the display and show the held temperature.In
probe mode, the unit will automatically power off after 12 minutes. In auto-
scan mode, the unit will automatically power off after 60 minutes.
Toggling Laser & Backlight
To toggle the laser, hold down the trigger and press the Down Key. To
toggle the backlight, hold down the trigger and press the Up Key.
Thermocouple Probe Mode
The INF225 can measure the temperature from a K-Type thermocouple
probe. Press the mode key to enter Probe Mode. The measured
temperature will automatically be displayed. To see the minimum or
maximum temperature taken by the probe, press and hold the Down Button
or Up Button, respectively.
LCD SYMBOLS
Laser is active
The backlight is on.
The last measurement taken is being shown.
The thermometer is currently taking measurements.
Auto-scan mode is active.
Celsius or Fahrenheit temperature scale.
Battery is OK.
Battery is low and should be replaced.
Battery is exhausted. Replacement necessary before use.
OPERATION MODES
The INF225 has several modes of operation. Press the "Mode" button to
cycle through modes. The following chart shows the mode name, the
screen identifier, and the function of the auxiliary buttons in the mode.
Mode
Screen
Down Key
Up Key
A
Display
°F
ļ
°C
Auto-scan
B
Emissivity adjust
Decrease
emissivity
Increase
emissivity
C
Maximum reading
°F
ļ
°C
Auto-scan
D
Minimum reading
°F
ļ
°C
Auto-scan
E
Difference
°F
ļ
°C
Auto-scan
F
Average
°F
ļ
°C
Auto-scan
G
High Alarm
Decrease
threshold
Increase
threshold
H
Low Alarm
Decrease
threshold
Increase
threshold
I
K-Type Probe
Show
minimum
Show
maximum
A.
Shows the emissivity.
B.
Allows adjustment of the emissivity. See
Emissivity
section..
C.
Shows the maximum reading taken while the trigger is held down.
D.
Shows the minimum reading taken while the trigger is held down.
E.
Shows the difference between the highest and lowest measurements
taken while the trigger is held down.
F.
Shows the average of all readings taken while the trigger is held
down.
G.
Sets the threshold for an alarm that will sound whenever the
measured temperature is greater than the alarm threshold.
H.
Sets the threshold for an alarm that will sound and flash whenever
the measured temperature is less than the alarm threshold.
I.
Shows the temperature reading of an attached K-Type thermocouple.
The temperature being measured has exceeded the allowable
range.
The temperature being measured is greater than the high
alarm (HAL) setting or lower than the low alarm (LAL) setting.
Rapid changes in ambient temperature detected. Please wait
a minimum of 30 minutes between large ambient temperature
changes before use.
The ambient temperature has exceeded the allowable range.
Any other error requires the thermometer to be reset. Turn off
the thermometer, remove the batteries, wait one minute, then
reinsert the batteries.
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