EXTECH EX840 [3/12] Cautions

EX840-EU-EN-V5.3-3/12

CAUTIONS

• Improper use of this meter can cause damage, shock, injury or death. Read and understand

this user manual before operating the meter.

• Always remove the test leads before replacing the battery or fuses.

• Inspect the condition of the test leads and the meter itself for any damage before operating the

meter. Repair or replace any damage before use.

• Use great care when making measurements if the voltages are greater than 25VAC rms or

35VDC. These voltages are considered a shock hazard.

• Always discharge capacitors and remove power from the device under test before performing

Diode, Resistance or Continuity tests.

• Voltage checks on electrical outlets can be difficult and misleading because of the uncertainty

of connection to the recessed electrical contacts. Other means should be used to ensure that

the terminals are not "live".

• If the equipment is used in a manner not specified by the manufacturer, the protection provided

by the equipment may be impaired.

• This device is not a toy and must not reach children’s hands. It contains hazardous objects as

well as small parts that the children could swallow. In case a child swallows any of them,

please contact a physician immediately

• Do not leave batteries and packing material lying around unattended; they can be dangerous

for children if they use them as toys

• In case the device is going to be unused for an extended period of time, remove the batteries

to prevent them from training

• Expired or damaged batteries can cause cauterization on contact with the skin. Always,

therefore, use suitable hand gloves in such cases

• See that the batteries are not short-circuited. Do not throw batteries into the fire.

• Do not directly view or direct the laser pointer at an eye. Low power visible lasers do not

normally present a hazard, but may present some potential for hazard if viewed directly for

extended periods of time