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a694

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A694 User manual User manual
Home  >  Products  >  Cable fault locators  > 
A694 - Short circuit locator.

INTRODUCTION

The A694 is a short circuit locator designed for fault location in metallic cables. The instrument measures the ratio of the resistances of the two sections of failed conductor using a four-wire "Kelvin" connection, thus eliminating errors associated with contact resistances of the test leads. With the A694 you can determine if the cable has more than a short and locate the first and the last fault. The instrument locates fault with an insulation resistance up to 5 Mohms in cables that have a total resistance greater than 0.1 ohm and less than 40 kohms. The distance to fault is measured as a percentage of the total length of cable and 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 short circuit in cables wound on reel.
Find fault present in:
- electric cables.
- telephone cables.
- rf cables
- thermocouple cables.
- enameled wires.
- symmetrical and asymmetrical cables.

SPECIFICATIONS

Can test cables with a loop resistance between 0.1 ohm and 40 kohms.
Range: > 100 km @ 400 ohm/km
Basic accuracy: ± 0,1 % ± 1 digit
Test current: up to 500 mA
Power supply: 9 V PP3-size alkaline battery.
Battery life: 1000 measurements @ 50 ohms
Weight: 400 g
Dimensions: 191 x 102 x 57 mm

ORDERING INFORMATION

Model A694:
fault locator for cable with a total resistance between 0.1 ohm and 40,000 ohms.

Model A694CTC:
fault locator for Continuously Transposed Conductors (CTC) with a total resistance between 0.05 ohm and 40000 ohms.

Included accessories:
carrying case, operating instructions, software for calculating the location of multiple faults, Kelvin probes type SK7 with a maximum aperture of 7 mm.

Optional accessories:
SK20: Kelvin probes with a maximum aperture of 20 mm

Warranty: 1 year

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