21
Specifications
Minimum Length
of Bridge Tap
10% of the distance to the bridge tap, dependent on the cable characteristics
Measurement
Rate
Maximum of 4 complete measurements per second, decreasing to 2 seconds per
measurement based on cable size and unifo
rmity.
VOP Adjustable from 20 to 99, saved in flash memory
Test Technology Time Domain Reflectometry (TDR) with 100 drive impedance, 6 V maximum pulse height
Cable Type Virtually all two or more conductor cables
Power 4 AA alkaline batteries
Reverse Battery
Pr
otection
No damage to the tester will occur if the batteries are installed backwards.
Battery Life 35 hours (typical)
Low Battery
Indication
LED display alternates between LO and bAtt when the battery voltage falls below 4.5 V.
Maximum
Isolation Voltage
2
50 volts RMS with < 1500 Vpk transient
Voltage
Measurem
ents
Range: 0 volts AC to 115 volts AC; 0 volts DC to ±150 volts DC
Accuracy: AC: ±1%, ±2 volts AC (45 Hz to 65 Hz); DC: ±1%, ±2 volts DC
High Voltage
Dete
ction
AC voltage detected to 115 volts DC voltage detected to ±150 volts.
AC voltage 90 volts or DC voltage 100 volts causes high voltage warnings to show on the
display
Tone Injection Approximately 1 kHz at an amplitude of 80 % of battery voltage. Variable frequency and
cade
nce. Tone characteristics change as cable condition changes to “normal-open” from any
other condition.
Impedance Range
35
to 33
0 with auto-compensation within this range. Cables with impedances outside
this range will not be properly tested and may produce erratic or incorrect readings.
Temperature
Range
Operating: 32 °F to 104 °F (0 °C to 40 °C)
Storage: 32 °F to 131 °F (0 °C to 55 °C)
Humidity Operating: 20% to 80% relative humidity
Storage: 0% to 100% relative humidity
Operating
Relative
Humidity
80% maximum at 86 °F (30 °C )
50% maximum at 104 °F (40 °C )
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