Hioki DM7275-01 - Measurement Error Displays; Values)

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Measurement Error Displays (Displays Other Than Measured Values)
3.5 MeasurementErrorDisplays(DisplaysOther
Than Measured Values)
The instrument will display a message on the screen if it is unable to complete measurement
normally. For more information: “14.3 Error Displays” (p. 176), “14.1 Q&A (Frequently Asked
Questions)” (p. 168)
Measure-
ment error
Display Description
Solution and additional
information
Over-range
+OvrRng
−OvrRng
• This message is displayed in the
following circumstances:
1. When the measurement range has
been exceeded
Example: When 13 V is measured
while using the 10 V range
2. When A/D converter input during
measurement exceeds the range
Example: When a 20 Vpk AC signal
is input while using the 10
V range
• The comparator judgment when
+OvrRng or −OvrRng is displayed will
be Hi or Lo (p. 54).
• The instrument will indicate OvrRng
if the temperature exceeds the
measurement range during
measurement.
Change the measurement range.
See “3.2 Setting the Measurement
Range” (p. 35).
Contact error
NoCntct
• When the contact check (p. 71) is
set to ON, the instrument automatically
checks the connection between the
HIGH and LOW terminals. In the
event of poor contact, this error will be
displayed, and the ERR signal will be
output from the EXT I/O terminal.
• If the measurement target is conductive
paint, conductive rubber, or a similar
material, the high resistance value
between the HIGH and LOW terminals
will cause this error to be continuously
displayed, preventing measurement.
• Comparator and BIN judgments cannot
be generated while this error is being
displayed.
• Check the contact between the
measurement target and the
metal pins.
• Replace the measurement cable.
• Change the contact check
thresholds.
• If you wish to disable display of
contact errors, set the contact
check to OFF.
See “6.3 Contact Check” (p. 71).
No
measurement
−−−−−−−
• This message is displayed when no
measurements have been made since
changing the measurement conditions.
• Comparator and BIN judgments cannot
be generated while this error is being
displayed.
Temperature sensor
not connected
−−.−°C
Temperature measurement cannot be
performed because the temperature
sensor is not connected.
It is not necessary to connect the
temperature sensor if you are not
measuring temperature or using
the temperature compensation
(TC) function. If you do not wish to
display the temperature, change to
the voltage display.
See “Switching the measured value
display” (p. 18).
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