Velleman DCM267, User Manual

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DCM267 GB 5
WARNING
v Remove the thermocouple before selecting another function in order to avoid electroshocks.
v Disconnect the test leads from all measurement circuits prior to using the thermocouple.
v
Do not use the test leads for voltage measurements unless the thermocouple has been
disconnected.
6.6. Frequency Measurements
1) Connect the red test lead to the “VHz”-jack and the black test lead to the “COM”-jack.
2) Place the rotary switch in the “Hz”-position.
3) Connect the test leads to the source to be measured.
NOTES :
v
Do not apply more than 250Vrms to the input.
v Use shielded cable for measuring small signals when working in an environment with a lot of
radio interference.
6.7. Diode Measurements
1) Connect the red test lead to the “
Ω
”-jack and the black test lead to the “COM”-jack. The
polarity of the red test lead is positive (+).
2) Place the rotary switch in the -position.
3) Connect the red test lead to the anode and connect the black test lead to the cathode of the
diode to be tested.
4) The approximate forward voltage drop of the diode will be displayed. The figure “1” will be
displayed if the polarity is reversed.
6.8. Audible Continuity Test
1) Connect the red test lead to the “
Ω
”-jack and the black test lead to the “COM”-jack.
2) Place the range switch in the -position.
3) Connect the test leads to two points of the circuit to be tested. The built-in buzzer will sound if
continuity exists.
7. Specifications
Max. accuracy is achieved during a one-year period after calibration. Ideal circumstances
require an operating temperature of 18 to 28°C (64 to 82°F) and a max. relative humidity of
80%.
****** General Specifications
Max. voltage between
CAT II 1000VDC or 750Vrms AC (sine wave)
terminals and earth ground
Display
Max. reading is 1999
Reading Rate 2-3 readings/sec.
Polarity Indication “-“ is displayed to indicate negative polarity
Overrange Indication Only figure “1” is displayed
Jaw Opening 55mm (= max. size or Ø of the conductor)