DRBIII(R) Safety Information

Carefully read and understand the cautions and the specification limits.

• Follow the vehicle manufacturer's service specifications at all times.
• Do not use the DRBIII(R) if it has been damaged.
• Do not use the test leads if the insulation is damaged or if metal is exposed.
• To avoid electrical shock, do not touch the test leads, tips, or the circuit being tested.
• Choose the proper range and function for the measurement. Do not try voltage or current measurements that may exceed the rated capacity.
• Do not exceed the limits of DRBIII(R). See DRBIII(R) LIMITS  table.
  DRBIII(R) LIMITS
  
  

  FUNCTION	INPUT LIMIT
  Volts (AC)	0-500 peak volts
  Volts (DC)	0-500 volts
  Ohms (Resistance) (1)	0-1.12 meg-ohms
  Frequency Measured	0-10 kHz
  Frequency Generated Temperature	58-1100°F (-50-600°C)
  (1) Ohms cannot be measured if voltage is present. Ohms can be measured only in a non-powered circuit.

• Use caution when measuring voltage more than 25 volts DC or 25 volts AC.
• Use the low current shunt to measure circuits up to 10 amps. Use the high current clamp to measure circuits exceeding 10 amps.
• When testing for the presence of voltage or current, make sure the meter is functioning correctly. Take a reading of a known voltage or current before accepting a zero reading.
• When measuring current, connect the meter in series with test lead.
• Disconnect the live test lead before disconnecting the common test lead.
• When using the meter function, keep the DRBIII(R) away from spark plug or coil wires to avoid measuring error from outside interference.