GMC-I Messtechnik GmbH
21
Control Functions
Ð
Briefly press the
ZERO | ESC
key.
The instrument acknowledges storage of the reference value
with an acoustic signal, and the “ZERO
REL” or the “
REL”
symbol appears at the LCD. The value measured at the mo-
ment the key is pressed serves as a reference value.
Ð
The reference value can be cleared by once again pressing the
ZERO | ESC
key.
Notes Regarding Relative Measurement
• Relative measurement effects the main display only.
• In the case of relative measurement,
F or AC quantities may
also appear as negative values.
4.3
Display (LCD)
Measured Value, Unit of Measure, Type of Current, Polarity
The measured value with decimal and plus or minus sign appears
at the digital display. The selected unit of measure and current
type are displayed as well. A minus sign appears to the left of the
value during the measurement of zero-frequency quantities, if the
plus pole of the measured quantity is applied to the “
” input.
Overranging
If the upper range limit of 31,000 digits is exceeded “
0L
” (overload)
appears at the display.
“
0L
” appears at the display as of 3100 digits during capacitance
measurement, as well as during continuity and diode testing.