beautypg.com

AMETEK XT Series User Manual

Page 29

background image

Load Connection and Sensing

Load Connection

29

Load Wiring Length for Operation with Sense Lines

For applications using

remote sensing, you must limit the voltage drop across each load line. See Figure 3.1
for some maximum allowable lengths for a given load current and wire size. We
recommend that you use the larger load wiring to ensure a smaller voltage drop
(0.1 V typical maximum), although units can compensate for up to 0.5 V drop in
each line

1

.)

Figure 3.1 Maximum Wire Length for 100 mV Line Drop

Noise and Impedance Effects

To minimize noise pickup or radiation, use

shielded pair wiring of the shortest possible length for load wires. Connect the shield
to the chassis via the front panel binding post or a rear panel mounting screw. Where
shielding is impossible or impractical, simply twisting the wires together will offer
some noise immunity.

Making Load

Connections

Front Panel Binding Posts

To make connections at the front panel, connect

load wires using stripped wire (0.6"), tongue lugs, or banana plugs to the output
binding posts.

For binding posts locations, see Figure 1.1 Front Panel Controls, p. 13.

1. Any losses in the load cables must be deducted from the maximum output voltage of

the supply. For example, a 15 V supply with a 1 V loss in the load cables can supply a
maximum of 14 V regulated at the load.