GOSSEN-METRAWATT
9
„CONTINUOUSLY ON“
When set to the „ISO-
Ω
“ and „
Ω
“ positions, the tester
measures only as long as you keep the pushbutton (8) in
the probe pressed (an exception is the „AUTO“ function at
position „
Ω
“, see section 8.1). When set to these positions,
you also can switch the tester „CONTINUOUSLY ON“:
í
Briefly press the measurement pushbutton „( )“ (1) on
the tester. You can cancel „CONTINUOUSLY ON“ by
• again pressing the measurement pushbutton „ “ (1) on
the tester
• pressing the pushbutton (8) in the probe
• operating the rotary switch (6)
Note!
☞
Electrical discharges and high-frequency interfer-
ences can cause incorrect displays. Briefly set the
rotary switch (6) to another position; the tester is
thus reset.
4
LCD display
The measured values are shown on the LCD display (5) in
digital and analog form.
The digital display shows the measured value with decimal
point and unit. The numerals immediately under the decimal
points show the upper limit of the selected measuring
range. When the measuring range is exceeded, „OL“ is dis-
played in place of the measured value.
The analog indicator with pointer presentation gives the
dynamic response of a moving-coil movement. The analog
display is of particular advantage when observing variations
of measured values and transients.
When the upper range limit is exceeded, a triangle is shown
at the end of the analog scale.
5
Detecting dangerous touch potentials
The tester detects dangerous touch potentials on the probes
• regardless of being switched on or not
• regardless of the selected function
• regardless of the batteries being inserted or not.
Voltages above 25 V are
signalled on the LCD dis-
play (5) by a warning tri-
angle.
The display of the warn-
ing triangle is made with-
out auxiliary voltage. You can recognize the triangle already
from approximately 10 V up with low contrast. Full contrast
is obtained at 25 V.
The warning triangle directs your attention to a hazardous
voltage on the probes. You can determine the voltage value
on the voltage measuring range.
Attention!
!
When the rotary switch (6) is set to the „
Ω
“ posi-
tion, the fuse blows when an external voltage is
applied to the probes!
Never switch to the „
Ω
“ range when an external
voltage is applied as this could damage the switch
contacts!