Amprobe HD160C, User Manual

Page: 10 / 148

4
Display Symbols and Audible Symbols
Y
Dangerous voltage warning (also double beep tone). Indicates input
voltages higher than 30 V ac or 60 V dc.
B
Low-battery voltage
- Negative polarity indicator
Overload Condition
Input Overload (highest range in autoranging) is indicated by “OL or
−
OL” and a
continuous tone. Remove test leads from the measurement setup as the input is beyond
the range of the meter.
Display Overload (input exceeds the selected range while range is locked) is also indicated
by “OL or -OL”. Select the next higher range until a value is displayed, or return to
autoranging. If overload still exists in the highest range, remove test leads from the
measurement setup as input is beyond the range of the meter.
Note: In both instances, overload indication is normal in the ohms and continuity ranges
(no sound) when the leads are not connected to anything or when the measured value is
higher than the selected resistance range.
Incorrect Input Warning
The meter displays a function error code “Err” when a test lead is placed in the A input
jack and the Selector switch is not set to a current or capacitance range. (If the meter is
connected to a voltage source with leads connected for current, very high current could
result). All current ranges are protected with a fast acting fuse.
Dangerous Voltage Warning
Displayed voltage warning and double-beep warning when input voltages are greater than
30 V ac/60 V dc,
Y
.
Audible Feedback
The meter emits a single beep when a parameter is changed, a “valid” front panel button
is pushed, or Auto Min Max values are updated. A double beep indicates a dangerous input
voltage (>30 V ac or 60 V dc).
The meter emits a continuous tone in the case of input overload, for continuity
measurement when resistance is <40
Ω
, and for current measurements, when the A input is
used and the current
exceeds 2 A.