7
Operation
Test Condition
Status LEDs That Are On
Display
Beeper
Deadzone mode is on
d 50
(when in feet
mode)
d 15
(when in meters
mode)
Off
DC load (light bulb, TV, etc.) is
detected
-
Err
Off
AC voltage >4 V AC and <60 V AC is
detected
VOLTAGE
Alternates between the
AC voltage measurement
and
AC
Off
DC voltage >6 V DC and <
±60 V DC
is detected
VOLTAGE
Shows the DC voltage
measurement once, then
shows the TDR results
Off
Hazardous voltage or ringing
voltage is detected
(
90 V AC, 20 Hz to 450 Hz;
±100 V dc)
VOLTAGE
Alternates between the
measured voltage and
HIAC
or
HIdC
Staggered if
90 V
AC or
100 V DC
Low battery
(Battery voltage is < 4.5 V DC)
LO
alternates with
bAtt
4
times, then the display
shows a measurement as
usual. This sequence
occurs every 2 minutes.
Off
The self-test failed
8888
Off
The tester cannot measure the
cable because of excessive noise,
crosstalk, terminations, or
anomalies on the cable
-
Err
Off
* An open can be the end of a pair, a break in a one wire, or separation between the wires in the pair. If one wire in the pair
separates from the other wire for more than 1 ft (30 cm), the tester indicates an open at the separation.
Table 1. LED Display and Beeper Indications (continued)