Atec Labworks-PA-141 - Manual

PA-141
Linear Power Amplifier
High quality audio power for vibration test systems.
abworks Inc.
L
2950 airway ave., a-16, costa mesa, ca 92626 • (714) 549-1981 • fax (714) 549-8041
GENERAL DESCRIPTION
The Labworks PA-141 Linear Power Amplifier is a high
quality, air-cooled, direct-coupled audio amplifier primarily
intended for use with vibration systems. Although this
amplifier has been designed to directly drive low impedance
loads, it can be used in any application requiring continuous
duty, high quality, audio power.
There are two operational modes. The amplifier can be
used as either a wide-band, highly damped voltage source,
or as a high impedance current source. DC and AC coupled
signal inputs are provided.
In order to insure long term reliability, the PA-141 features
protection from both over current and over temperature.
Full interlock circuitry is also included. Peak voltage and RMS
current bar graphs monitor output conditions.
Optional, internal DC field power supplies are available for
use in conjunction with Labworks Shakers. These options
provide the convenience of a single chassis power source,
as well as fully integrated power-up and cooling interlock
circuitry with the power amplifier. Switched 115 Vac power
is provided for shaker cooling blower and control instrument
requirements.
The PA-141 is designed for standard 19 in. rack mounted
installation and can be operated on 100, 120, 200, 220 or
240V, 48 to 62 Hz power.
FEATURES
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Linear output stage provides low
noise and distortion.
Automatic over temperature and over
current protection.
Direct coupled input and output allows
DC operation.
External interlock circuitry. Two operational modes, voltage or
current source.
Optional internal shaker field supplies. ■
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