Exfo MaxTester 635 Manuel d'utilisateur télécharger pdf (Page 340)

Caractéristiques techniques

332 MAX-635-V2XAA

COPPER SPECIFICATIONS

a, b, c

(continued)

Isolation resistance

(stress/leakage) (continued)

Source 50 to 125 VDC (current safely limited to 0.5 mA)

Soak timer (s) 1 to 60

VF noise measurement Frequency range 200 Hz to 20 kHz

Level range (dBm) –90 to 20

Resolution (dB) 0.1

Uncertainty (accuracy) –90 dBm to –50 dBm, uncertainty (accuracy) ±2 dB

–50 dBm to +20 dBm, uncertainty (accuracy) ±1 dB

Filters ITU: none, psophometric, P-notched, 3.4 kHz, D-filter, 15 kHz

ANSI: none, C-message, C-notched, 3.4 kHz, D-filter, 15 kHz

Impedance 600 1

VF impulse noise Low threshold (dBm) –40 to 0, in 1 dB steps

Mid threshold Low threshold plus separation

High threshold Mid threshold plus separation

Separation (dB) 1 to 6, in 1 dB steps

Dead time (ms) 125

Filters

None, 3 kHz flat, C-message, psophometric,

notched and D filter (IEEE 743-1995)

Counter Maximum 999 for each threshold

Timer Maximum 100 hours

Power influence (noise to ground) Noise range (dBm) –60 to 10

Uncertainty (accuracy) –60 dBm to –50 dBm ± 2 dB

–50 dBm to 10 dBm ± 1 dB

VF longitudinal balance Frequency (Hz) 1004

Level range (dB) 0 to 100

Level uncertainty (accuracy) (dB) ±1

Impedance 600 1

Time-domain reflectometer (TDR) Modes Fully automatic operation with location of most significant event(s)

Distance range (m) 0 to 6700 (0 ft up to 22 000 ft)

Pulse width 15 ns to 20 μs

Test signals Sine wave, compensated sine wave, half-sine wave and square wave

Amplitude 7.5 V p-p on cable, 9 V p-p open circuit

Velocity of propagation (VOP) 0.400 to 0.999

Distance uncertainty (accuracy)

(m) ±(0.5 m + 1 % x distance)

Units Meters and feet

Load coil detection Count Up to 5

Plot (kHz) Up to 10

Distance range (m) Up to 8000 (up to 27 000 ft)

NOTES

a. Subject to change without notice.

b. Typical, at 23 °C ± 3 °C, on batteries, with no type B USB connection.

c. Specifications based on 24 AWG (PE 0.5 mm) cabling.

d. Qualified up to 300 m (1000 ft) and does not include the uncertainty due to VOP.

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Exfo MaxTester 635 Manuel d'utilisateur Page 340

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