Position Sensor - ATA-20010 pages

ATA-2001 LVDT Amplifier
True Analog Conditioner with Digital Calibration
ATA-2001 Rev 1 www.meas-spec.com 09/24/2008
1000 Lucas Way Hampton, VA 23666 757-766-1500 enduser@meas-spec.com
The ATA-2001 LVDT Amplifier is a general purpose,
AC line-powered LVDT/RVDT conditioner featuring state-ofthe-
art design principles. The new SMT (Surface Mount
Technology) design uses an embedded microprocessor to
generate a PWM-shaped sine wave and control all
calibration functions. The processor is also employed in the
demodulation, filtration and synchronization of the LVDT
signal. All settings are stored in non-volatile memory for
restoration on power up. Zero, Span and Phase
adjustments are accomplished via the use of splashproof
front panel pushbuttons and digital voltage dividers,
eliminating the need for drift-inducing screw adjust
potentiometers. All amplifier controls are accessible outside
of the rugged aluminum enclosure.
The new ATA 2001 is CE certified, and is intended for
the most rigorous, industrial applications. The ATA 2001
has been tested to the highest industrial standards for EMI,
RFI and ESD.
The ATA 2001 is designed for universal compatibility
with all 4, 5 and 6 lead LVDTs. A wide range of oscillator
frequencies combined with two excitation voltages, 3.5 and
0.5 Vrms, provide maximum versatility. The high power
carrier amplifier has more than twice the drive capability of
previous designs. Able to power low impedance LVDTs at
higher amplitudes, the ATA 2001 provides measurement
resolutions beyond any product currently available.
The ATA 2001 is contained within a rugged, extruded
aluminum housing. The one-piece design provides optimal
amplifier performance under the most rigorous EMI and RFI
conditions. An integral panel mounting system provides for
convenient 1/8 DIN standard, panel installation. Prepunched
19” rack adapters are available from Schaevitz® to
accommodate up to eight amplifiers per adapter installation.
FEATURES
• 2.5, 5.0 and 10.0 kHz Switch Selectable Excitation
• Digital Filtering
• CE Certified
• Switch Selectable 115 or 220 VAC Operation
• Voltage and Current Outputs
• Microprocessor Controlled Calibration and
Synchronization
• 1/8 DIN Standard Panel Mounting
• Splashproof Front Panel with Status LEDs
APPLICATIONS
• Control Valve Position Control
• Head Box Slice Lip Position Control
• Precision Metrology Labs
• Roller Gap Position Feedback
OPTIONS
• Rack adaptor holds up to 8 ATA’s
An auto fall-back synchronization
feature allows reliable master/slave
operation, for prevention of amplifier cross talk,
without the worry of sync signal loss. If the
internal processor in a slave amplifier detects
an unstable or missing sync signal, the internal
clock will take over, continuing at the preselected
nominal frequency. Upon restoration
of a normal sync pulse, the oscillator will return
to the slave mode.