DeWalt DCT414-XE, Instruction Manual

6

before use. A battery pack may also slowly lose its charge if left in a charger that is 

not plugged into an appropriate AC source.

WEAK BATTERY PACKS:

 Chargers can also detect a weak battery pack. Such 

batteries are still usable but should not be expected to perform as much work. The 

charger will indicate to replace battery pack.

Important Charging Notes

  1. Longest life and best performance can be obtained if the battery pack is charged 

when the air temperature is between 18°- 24°C (65°F and 75°F). DO NOT charge 

the battery pack in an air temperature below +4.5°C (+40°F), or above +40.5°C 

(+105°F). This is important and will prevent serious damage to the battery pack.

  2. The charger and battery pack may become warm to touch while charging. This 

is a normal condition, and does not indicate a problem. To facilitate the cooling 

of the battery pack after use, avoid placing the charger or battery pack in a warm 

environment such as in a metal shed, or an uninsulated trailer.

  3. If the battery pack does not charge properly:
    a.  Check operation of receptacle by plugging in a lamp or other appliance;
    b.  Check to see if receptacle is connected to a light switch which turns power off 

when you turn out the lights; 

    c.  Move charger and battery pack to a location where the surrounding air 

temperature is approximately 18°- 24°C (65°F - 75°F); 

    d.  If charging problems persist, take the tool, battery pack and charger to your 

local service center.

  4. The battery pack should be recharged when it fails to produce sufficient power 

on jobs which were easily done previously. DO NOT CONTINUE to use under 

these conditions. Follow the charging procedure. You may also charge a partially 

used pack whenever you desire with no adverse affect on the battery pack.

  5. Foreign materials of a conductive nature such as, but not limited to, grinding 

dust, metal chips, steel wool, aluminum foil, or any buildup of metallic particles 

should be kept away from charger cavities. Always unplug the charger from the 

power supply when there is no battery pack in the cavity. Unplug charger before 

attempting to clean.

  6. Do not freeze or immerse charger in water or any other liquid.

WARNING: 

Shock hazard. Don’t allow any liquid to get inside charger. Electric 

shock may result. 

CAUTION

:

 Never attempt to open the battery pack for any reason. If the plastic 

housing of the battery pack breaks or cracks, return to a service center for recycling.

Storage Recommendations

  1. The best storage place is one that is cool and dry away from direct sunlight and 

excess heat or cold.

  2. Long storage will not harm the battery pack or charger. Under proper conditions, 

they can be stored for 5 years or more.

SAVE THESE INSTRUCTIONS FOR FUTURE USE

Emissivity 

Emissivity describes the energy-emitting characteristics of materials. Most organic 

materials and painted or oxidized surfaces have an emissivity of about 0.95 which 

is the default setting. It is recommended to compensate for inaccurate readings that 

may result from measuring materials with low emissivity values such as shiny metal 

surfaces. Cover these surfaces with masking tape or flat black paint (<148°C/300°F) 

and use the default (0.95) setting. Allow time for the tape or paint to reach the same 

temperature as the surface beneath it and then measure the temperature of the tape or 

painted surface.
If you cannot paint or use tape, then you can compensate your measurements with 

the emissivity selector. Even with the adjustable emissivity, it can be difficult to get a 

completely accurate infrared measurement of a target with a shiny or metallic surface. 

Experimentation may be required to benchmark temperatures, and experience will help 

you choose the best setting for specific measurements.
The thermometer has emissivity adjustable from 0.1 to 1.0 in increments of 0.01. 

Refer to the Nominal Emissivity Table in this manual. The reference to emissivity 

settings in the table are suggestions for typical situations and your particular situation 

may differ. 

NOTE: 

Calibration of this product was performed at 0.95 emissivity.