TDR-420/410

Parameter	Description
measuring ranges	20, 45, 90, 180, 360, 750, 1500, 3000, 6000, 10000, 20000 [ft] 7 m, 15 m, 30 m, 60 m, 120 m, 250 m, 500 m, 1 km, 2 km, 3 km, 6 km
accuracy	1% of selected range
resolution	approx. 1% of range
minimum cable length	4 m
velocity of propagation	within 10…99% or 15…148.5 m/μs
output impulse	5 Vp-p for an open circuit
output impedance	25, 50, 75, 100, 125 and 200 Ω
impulse width	3 ns…3 μs (depending on the range)
scanning type	up to 3 scans/s or a single scan (ONCE mode)
generated acoustic signal	810 – 1100 Hz
operating time on a full battery	up to 8 hours of continuous scanning
power supply	4 x alkaline batteries 1.5 V AA type or 4 x NiMH AA rechargeable batteries
auto-off function	1, 5, 10, 15 minutes or deactivated
display	colour 3.5” LCD TFT, 320 x 240 pixels
overvoltage protection	400 V DC / 250 V AC
operating temperature	-20…+70°C \| -4…+158°F
storage temperature	-30°…+80°C \| -22…+176°F
electromagnetic compatibility standards (EMC)	EN 61326-1
degree of protection / tightness	IP67

Parameter

Description

measuring ranges

20, 45, 90, 180, 360, 750, 1500, 3000, 6000, 10000, 20000 [ft] 7 m, 15 m, 30 m, 60 m, 120 m, 250 m, 500 m, 1 km, 2 km, 3 km, 6 km

accuracy

1% of selected range

resolution

approx. 1% of range

minimum cable length

4 m

velocity of propagation

within 10…99% or 15…148.5 m/μs

output impulse

5 Vp-p for an open circuit

output impedance

25, 50, 75, 100, 125 and 200 Ω

impulse width

3 ns…3 μs (depending on the range)

scanning type

up to 3 scans/s or a single scan (ONCE mode)

generated acoustic signal

810 – 1100 Hz

operating time on a full battery

up to 8 hours of continuous scanning

power supply

4 x alkaline batteries 1.5 V AA type or 4 x NiMH AA rechargeable batteries

auto-off function

1, 5, 10, 15 minutes or deactivated

display

colour 3.5” LCD TFT, 320 x 240 pixels

overvoltage protection

400 V DC / 250 V AC

operating temperature

-20…+70°C | -4…+158°F

storage temperature

-30°…+80°C | -22…+176°F

electromagnetic compatibility standards (EMC)

EN 61326-1

degree of protection / tightness

IP67

Description

The TDR-420 reflectometer is a handy digital Time Domain Reflectometer (TDR) designed to characterize and locate faults in power and telecommunications cables. The Sonel TDR-420 reflectometer allows to measure the length of the cable and to determine the distance to the damage or impedance change in the range from 4 to 6000 m in cables with metal conductors. The shortest measuring range of 7 meters and the dead zone of 0.6 m allows user to locate a damage in a very short distance from the connection point of the device.

Description

Brand

Sonel

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TDR-420/410

Description

Brand

Sonel

Reviews

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