Megger CFL510F, Руководство пользователя

Страница: 14 / 17

Operation
15
Except where otherwise stated, this specification
applies at an ambient temperature of 20C.
General
Ranges: 10m, 30m, 100m, 300m, 1000m, 3000m
(30ft, 100ft, 300ft, 1000ft, 3000ft, 10000ft)
Accuracy: 1% of range pixel at 0.67VF
[Note- The measurement accuracy is for the
indicated cursor position only and is conditional on
the velocity factor being correct.]
Resolution: 1% of range.
Input Protection: This instrument complies with
IEC61010-1 for connection to
live systems up to 300V CAT
III. Fused leads must be used
if the voltage between the
terminals exceeds 300V.
Output pulse: 5 volts peak to peak into open
circuit. Pulse widths determined by range and cable
impedance:
25
Ω
50
Ω
75
Ω
100
Ω
10m 7ns 7ns 7ns 7ns
30m 20ns 20ns 20ns 20ns
100m 100ns 60ns 100ns 100ns
300m 300ns 120ns 170ns 300ns
1000m 1000ns 520ns 680ns 1000ns
3000m 3000ns 2020ns 2340ns 3000ns
Gain: Set for each range with four user
selectable steps.
Velocity Factor: Variable from 0.01 to 0.99
in steps of 0.01
Impedance matching: 25, 50, 75, 100
Tx Null: 0 to 120
Refresh Rate: Selectable from the menu.Once
per second or three times a second.
Power Down: Automatic after 5 minutes with no
key press.
www.
GlobalTestSupply
.com
Find Quality Products Online at: sales@GlobalTestSupply.com