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A994 User manual User manual
Home  >  Products  >  Cable fault locators  > 
A994 - Open circuit locator.

INTRODUCTION

The A994 is an open circuit locator for electric and telephone cables wind on the reel; it gives the position of the fault from the inside or outside end of the cable, in percentage to the total cable length. The instrument measures the ratio of the capacitances of the two sections of failed conductor using two high precision i/v converters. The advantage of this method is due to the fact that the measurement error depends almost exclusively on the dimensional inhomogeneity of the cable. The A994 has the unique feature to permit the location of fault in cables with all broken wires. This instrument locates breaks in cables with a total capacity between 2 nF and 5 uF. The distance to fault is displayed on a large LCD display.

Note: for the operation of this locator should be accessible both ends of the cable.


APPLICATIONS

Localization of open circuit in cables wound on reel.
Find fault present in:
- power cables.
- electric cables.
- telephone cables.
- rf cables
- thermocouple cables.
- enameled wires.
- symmetrical and asymmetrical cables.

SPECIFICATIONS

Can test cables with a capacitance between 2 nF and 5 uF.
Range: > 40 km @ 100 pF/m
Basic accuracy: ± 0,1 % ± 1 digit
Test frequency: 12.5 Hz, 125 Hz
Power supply: 9 V PP3-size alkaline battery.
Battery life: 1000 measurements.
Weight: 400 g
Dimensions: 191 x 102 x 57 mm


ORDERING INFORMATION

Model A994:
open circuit locator for cables with a total capacitance between 2 nF and 5 uF.

Model A994-A:
open circuit locator for cables with a total capacitance between 200 pF and 500 nF.

Included accessories:
carrying case, operating instructions, crocodile probes type SC7 with a maximum aperture of 7 mm.

Optional accessories:
SC20: crocodile probes with a maximum aperture of 20 mm

Warranty: 1 year