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SECTION 2 — PREPARATION FOR USE

2-1 Initial Inspection

Check the shipping carton carefully for external

damage. If the carton shows evidence of abuse, ask
the carrier’s agent to be present when the unit is un-
packed. Carefully unpack the unit to avoid damaging
the equipment through the use of careless proce-
dures. Inspect all equipment for damages immediate-
ly after unpacking. Bent and broken parts, dents and
scratches should be noted. If damage is found, refer
to paragraph 2-2 for recommended claim proce-
dures. Keep all packing material for possible future
use.

2-2 Claims

If the unit has been damaged, notify the carrier im-

mediately. File a claim with the carrier and advise Lo-
gitek of such action to arrange for repair or
replacement without waiting for a claim to be settled
with the carrier.

2-3 Repacking for Shipment

If the unit must be returned to Logitek, attach a let-

ter to it showing the owner’s name and address. A de-
scription of necessary service should be included in
the letter. The original shipping carton and packaging
materials should be used for reshipment if possible.
Use FRAGILE labels on each surface. Return the unit
freight prepaid. Be sure to insure the unit for its full
value. The unit will be repaired promptly and returned
freight prepaid.

2-4 Installation

Rackmount Enclosure

The Ultra-VU rackmount models are designed to

be mounted in a standard 19" equipment rack by us-
ing the four mounting holes in the corners of the front
panel. Plastic washers should be used to keep the
mounting screw for marring the front panel finish.

Desktop Enclosure

The Ultra-VU desktop enclosure is designed to sit

on any flat surface. The front of the meter may be an-
gled up for easier viewing by raising the bale located
on the bottom of the box.

While flow through ventilation is not necessary,

the units should not be mounted directly above
equipment which produces significant heat, such as
equipment using vacuum tubes. The unit should
never be operated if the ambient temperature is
above 55 degrees C (131 degrees F).

2-5 Connecting Mains Power

Connect the meter to the power mains with the en-

closed power cord. The unit is factory set for 115VAC

operation unless specifically labeled otherwise, but
230VAC operation can be selected via a slide switch
located next to the power transformer inside the unit.
To gain access to the voltage select switch, remove
the enclosure top cover. The switch is located adja-
cent to the large power transformer.

2-6 Input Selection on Dual Input Models

If the digital receiver can lock onto an input signal

then the meter will display that signal whether it con-
tains errors or not. If no signal is connected to the
digital input or the data rate is out of the receiver’s
capture range, then the meter will display the analog
signal. This happens even if nothing is connected to
the analog inputs. The Ultra-VU can be forced to dis-
play only one input by connecting a remote switch to
the unit. Consult the factory for details.

2-7 Connecting Digital Input Models

The Ultra-VU accepts AES/EBU or S/PDIF serial

data at sample rates of 30,000 to 50,000 samples per
second via a female XLR connector on the rear panel.
The input is also wired directly to the male XLR con-
nector on the back panel for use in loop-through
mode. The loop-through connector provides a con-
venient way to daisy-chain several pieces of equip-
ment off of one digital output. Loop-through works
well with AES/EBU signals but should be limited to 10
feet with S/PDIF signals and cables.

S/PDIF signals using RCA type plugs may be con-

nected to the input using an RCA to XLR adapter.
Coax cables using BNC connectors can be con-
nected to the input using a BNC to XLR adapter. Both
adapters are available from Logitek.

AES/EBU Connection

Pin 1

Shield

Pin 2

Pin 3

Signal -

It is also important to set the two input load

switches located between the two XLR connectors.

Input Load Switch Settings

Sw1 Sw2 Ohms Use
Up

2200

Loop-through mode