Vivax Metrotech vLoc-5000, Руководство пользователя

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5 Loc-10TxSIS Transmitter
Page 31 of 57
5.3.3 Clamp Mode
Plugging the signal clamp supplied by Vivax-Metrotech into the output socket will place the transmitter in
“Clamp” mode. An icon confirming this is displayed on the display. The icon flashes when the transmitter is
transmitting. When using the clamp no ground connection is needed.
The clamp again is a precise way to apply the locating signal. It is generally used when access to the
conductor cannot be achieved to make a direct connection (but there is sufficient access to place the clamp
around the cable), or when it is not safe to make a direct connection because the target cable is carrying
electricity.
The clamp is a specialized inductive device (sometimes known as a toroidor coupler). All clamps are
optimized to work at specific frequencies. In most cases clamps are designed to be used at up to three
frequencies only, generally between 8 kHz and 85 kHz. The transmitter will only allow the selection of a
suitable frequency for your clamp.
WARNING
When applying the clamp to cables that carry electricity – be sure to follow
your company’s safety instructions and procedures. Beware that if applied
around a high voltage cable – that cable may induce a current in the clamp
causing it to snap shut or jump quite dramatically – always apply clamps
carefully.
5.3.4 Connection Block
1 Output Connection
2 Output Protection (Fuse)
3 Loudspeaker
4 Battery Charging Socket & DC Input
All the connections made to the transmitter are made at the connection block except for a USB socket which
is mounted inside the battery compartment and is used for programming the transmitter’s processor.
The connection block consists of:

Output (XLR) socket – for the direct connection lead and clamp.

Charger socket (to allow the retrofitting of a rechargeable battery pack – the charging socket is present
even if re-chargeable batteries have not been purchased).

Transmitter 12V DC power lead used to power the transmitter from a vehicle (NOT for charging).

Fuse – this protects the transmitter circuitry in the event of the transmitter receiving up to 250V incoming
on the output leads.

A beeper is positioned behind the small hole.
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