La Crosse Technology Thermometer 914 604 User Manual

Not recommended for use in measuring shiny or polished  
metal surfaces (stainless steel, aluminum, etc.) The  
reading will not be accurate.  
It is not possible to take measurements through  
transparent materials (glass, Plexiglas, etc.). It will  
measure the temperature of the transparent surface  
instead.  
Model 914-604  
Infra-red thermometer  
It is not possible to measure air temperatures.  
Measurement errors can occur due to air contaminated  
with dust, steam, smoke, etc.  
Battery Replacement:  
Battery is low and no more measurements are possible.  
Replace the battery immediately with a CR2032 lithium button  
cell.  
1- Power off the thermometer before replacing the battery  
A malfunction may occur if the power is on during battery  
replacement. If a malfunction occurs, restart the device.  
2-Twist the battery cover on the back of thermometer to loosen  
the cover and remove the old battery. A coin will work well.  
3- The new CR2032 battery is installed positive side up.  
Take care that the metal contacts at the top of the battery  
compartment are not bent.  
Congratulations on your purchase of the Infrared  
Thermometer! One-click for a temperature reading.  
Metal Contacts  
Metal Contacts  
No surface contact required, prevents contamination.  
4-Replace the battery cover and tighten.  
Take a Measurement:  
Place the thermometer close to the item to measure.  
Click the button once to measure the surface temperature. The  
reading will display for 15 seconds.  
Troubleshooting:  
Problem  
Solution  
Hold the button for ongoing readings.  
No Display:  
Press the button  
Ensure battery polarity is correct  
Change the battery  
Auto Shut Off:  
When the button has not been pressed for 15 seconds, the  
thermometer will automatically shut off to save power.  
Display “oFF”:  
Display “Hi”:  
Display “Lo”:  
Caution!  
Automatic switch off (15 seconds)  
Temperature is above 390.2 °F  
Temperature below -27.4 °F  
Note: When measuring temperatures above 199.9 °F the last  
number will be smaller, due to LCD size. Example: 205 °F will  
show as 205.  
Applications:  
Check doors and windows for drafts.  
Maintain proper cooking, cooling and holding  
temperatures.  
Do not aim too close at hot or dangerous targets.  
Keep the thermometer and battery away from children.  
Batteries can explode if thrown into fire, short-circuited,  
taken apart or recharged.  
Battery can be fatal if swallowed. If a battery has been  
swallowed, get medical attention immediately.  
Batteries contain harmful acids. Change low batteries as  
soon as possible to prevent damage caused by a leaking  
battery.  
Measure food or liquid temperature (no contact, thus no  
contamination)  
Measure oven, stove & grill temperatures up to 390.2 °F.  
Check heating & cooling ducts, in-floor heating and  
furnace temperatures.  
Measure engine exhaust, tires and hard to reach areas  
Wear chemical resistant protective gloves and safety  
glasses when changing the battery.  
Description of measuring principle  
When making a temperature measurement, the surface  
radiation of the object measured is evaluated, using the  
principle of radiation thermometry. This is a purely passive  
process, i.e. no radiation is transmitted, but instead, use made  
of the natural electromagnetic radiation energy (heat radiation).  
Everything above a temperature of absolute zero (−459.67 °F)  
has heat radiation.  
Care and Maintenance:  
Do not place the instrument near extreme temperature,  
vibration or shock.  
Protect the unit from large abrupt temperature changes.  
Do not store near objects of high temperature.  
Do not immerse the unit in water. Water can penetrate and  
cause malfunction. Protect from moisture.  
Steam, dust, some can prevent accurate measurement by  
obstructing the units optics.  
D/S Ratio: The distance to target diameter ratio (Distance:  
Spot) is 1:1 therefore the device should be positioned as close  
to the target as possible. As you move farther from the target,  
you will receive ambient temperature around the target.  
Measuring Tips:  
 

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