TFA MiniTemp 31.1101 Operation Manual Download Page 5

Operation manual MiniTemp 

 

Warning (units with laser sighting ) 

Do not point laser directly at eye or indirectly off reflective surfaces. 

 

Cautions 

All models should be protected from the following, 
 

 

EMF (electro-magnetic fields) from arc welders, induction heaters 

 

Static electricity 

 

thermal shock (caused by large or abrupt ambient temperature changes – allow 30 minutes for 
unit to stabilize before use) 

 

Do not leave the unit on or near objects of high temperature 

 

Introduction 

We are confident you will find many uses for your handheld noncontact thermometer. Compact, 
rugged, and easy to use – just aim, pull the trigger, and read current surface temperatures in less 
than a second. You can safely measure surface temperatures of hot, hazardous, or hard -to-reach 
objects without contact. 

 

How it Works 

Infrared thermometers measure the surface temperature of an object. The unit’s optics sense emitted 
(E), reflected (R) and transmitted (T) energy, which is collected and focused onto a detector. The 
unit’s electronics translate the information into a temperature reading which is displayed on the unit. 
In units with a laser, the laser is used for aiming purposes only. 
  

How to Operate the Unit 

 

°C/°F

 

and Battery 

Pull open the unit’s handle using the finger indents near the trigger to access the C/F switch or to 
insert/remove the battery. To toggle between °C and °F, push the switch (A). Insert the 9v battery 
positive side first into the battery compartment. NOTE: The battery door is detachable. 

 

Operation the Unit 

To measure a temperature, point unit at object and pull the trigger. Be sure to consider distance -to-
spot size ratio and field of view. If the unit is equipped with a laser, use the laser only for aiming. See 
How to Accurately Measure Temperatures. 

 

Display 

The backlit LCD displays the current temperature in Celsius or Fahrenheit. The unit will hold the 
reading for 7 seconds after trigger is released; the word HOLD appears. The presence of the battery 
icon indicates a low  battery (B). 

 

How to Accurately Measure Temperature 

 

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 the hot spot. 

 

Field of View 

Make sure that the target is larger than the unit’s spot ize . 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. 

 

Reminders

 

 

Not recommended for use in measuring shiny or polished metal surfaces (stainless steel, 
aluminum, etc.). See Emissivity. 

 

The unit cannot measure through transparent surfaces such as glass. It will measure the surfa ce 
temperature of the glass instead. 

 

Steam, dust, smoke, etc., can prevent accurate measurement by obstructing the unit’s opitcs.  

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