Velleman DCM267N Mode D'emploi page 8

9. Operation
GENERAL
 When the range of the measured signal is unknown, start measurement
in auto-range mode, and then select range according to indicated value.
 The display shows "OL" when the present range limit is exceeded. Select
a higher range to continue measurement.
 Do not measure voltages > 600 V or current higher than 1000A. Never
turn the rotary function switch [3] during measurement.
 The device will go in sleep mode when no activity is detected for ±30
min.
 For all measurements: pressing the data hold button [4] freezes the
currently measured value until the data hold button [4] is pressed again.
The hold-mode is indicated by the word "HOLD" in the display.
 To switch on the backlight, press and hold the backlight button [4] for
about one second. To switch the backlight off, press and hold the
backlight button [4] again for ±1s. Note that the meter goes in HOLD
mode when switching the backlight on or off. Press the data hold button
[4] again to continue normal measurement.
 The meter starts in auto ranging mode. To select the range manually,
press the range button [7] (not for AC current, diode and continuity
measurements). To return to auto ranging, press and hold the range
button [7] for ±2 seconds.
AC/DC VOLTAGE MEASUREMENT
 Connect the red test lead to the "V Ω °C/°F" jack [10] and the black lead
to the "COM" jack [9].
 Set the rotary function switch [3] in the
 Use the mode button [5] to choose between AC and DC voltage.
 Connect the test leads parallel to the source being measured.
 Read the voltage value on the LCD display [8] along with the polarity of
the red lead connection.
AC CURRENT MEASUREMENT
 Make sure no test leads are connected to the "V Ω °C/°F" [10] or "COM"
[9] jacks.
 Set the rotary switch [3] in the desired range (40A, 400A or 1000A). If
the current to be measured is unknown beforehand, set the range switch
in the highest range position and then reduce gradually until the ideal
resolution is obtained.
 Press the trigger [2] to open the jaws [1] of the clamp. Enclose a single
conductor within the clamp and release the trigger [2]. Enclosing
multiple conductors at the same time will result in faulty measurements.
 Read the current value on the LCD display.
V. 02 – 20/08/2018
DCM267N
8
position.
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