JUPITER INTEGRATED SENSOR SYSTEMS PVT. LTD.
Analog LVDT-RVDT Signal Conditioner with digital calibration

Analog LVDT-RVDT Signal Conditioner with digital calibration

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The ATA-2001 is a general purpose, AC line-powered, LVDT/RVDT analog conditioner with digital setup and calibration. The embedded microprocessor generates a PWM-shaped sine wave and handles all calibration functions. It also controls the demodulation, filtration and synchronization of the LVDT or RVDT transducer signal. All settings are stored in non-volatile memory for restoration on power up. Zero, Gain and Phase adjustments are accomplished via the use of splash-proof front panel pushbuttons and digital voltage dividers. Intended for the most demanding industrial applications, the ATA 2001 is CE certified, and has been rigorously tested to the highest industrial standards for EMI, RFI and ESD.

Designed for universal compatibility with 4, 5 and 6 electrical connection transducers, the ATA-2001 provides a wide range of oscillator frequencies, gains and two excitation voltages, affording maximum interface versatility. The very high drive current of 45mA allows operation with transducer input impedances as low as 12 Ohms (with 0.5 VRMS excitation). With high gain capability and low noise, the ATA 2001 provides measurement resolutions beyond any product currently available.

The unique 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 pre-selected nominal frequency. Upon restoration of a normal sync pulse, the oscillator will return to the slave mode.

The ATA 2001 is contained within a rugged, one-piece, extruded aluminum housing which 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. A pre-punched 19” rack adapter is also available to accommodate up to eight amplifiers per adapter installation.

Also see our other signal conditioner models, LDM-1000 (DIN rail mount, VDC and 4-20mA output), LVM-110 (VDC input/output), LiM-420 (4-20mA transmitter), PML-1000 (1/8th DIN panel meter, VDC, current and RS485 outputs), and our IEM-422 (NEMA-13 rated 4-20mA transmitter).

Details :

  • 115 or 220 VAC line powered
  • Microprocessor controlled calibration
  • Superior digital filtering
  • Selectable excitation frequencies & amplitudes
  • Voltage and current outputs
  • 250 to 1000Hz selectable frequency response
  • Auto fall-back synchronization
  • Splash-proof front panel with status LEDs
  • 1/8 DIN standard panel mounting

Features :

  • Microprocessor controlled & non-volatile memory
  • Phase shift compensation
  • Auto fall-back synchronization
  • Rugged extruded aluminum housing

Applications :

  • Power-gen turbine control
  • Head box slice lip position control
  • Roller gap position feedback
  • Precision metrology labs

Performance Specifications :

Electrical Specifications

Line power requirements

115VAC +10%, 50-400Hz; 220VAC +10%, 50-400Hz (switch selectable)

Line voltage regulation

+10%, with no change in output

Voltage Output

Unipolar voltage output range

0 to 10VDC, with 10mA maximum current capability

Bipolar voltage output range

+10VDC (using 100% zero suppression), with 10mA maximum current capability

Noise and ripple (voltage output)

3mV RMS maximum @ 2.5KHz excitation frequency

Output impedance (voltage output)

1Ω maximum

Current Output

Current output range

4 to 20mA

Maximum loop resistance

700Ω with internal loop supply; 1000Ω with 24VDC external supply (32vdc MAX)

Noise and ripple (current output)

10µA rms (max)

Analog Outputs Frequency Response

Frequency response @ -3db

250Hz @ 2.5kHz excitation 500Hz @ 5.0kHz excitation 1000Hz @ 10kHz excitation

Amplifier Characteristics

Transducer input sensitivity range

High gain: 0.04 to 0.9 VRMS; Low gain: 0.5 to 10 VRMS (switch selectable)

Input impedance

100kΩ

Zero suppression range

+110% of FSO

Phase shift compensation range

+120 degrees maximum

Non-linearity and hysteresis

+0.05% of FSO, maximum

Stability

+0.05% of FSO, maximum, after 20 minute warm up

Temperature coefficient of output

+0.02% of FSO per degree F [+0.036% per degree C] over operating temp. range

Transducer Excitation

Voltage

0.5 or 3.5 VRMS, sine wave (switch selectable)

Current

45mA RMS maximum

Frequency

2.5, 5 or 10kHz (switch selectable)

Transducer Requirements

Transducer type

LVDT or RVDT with 4, 5 or 6 electrical connections

Input impedance (Primary)

12Ω minimum with 0.5 VRMS excitation; 80Ω minimum with 3.5 VRMS excitation

Full scale output

High gain: 0.04 to 0.9 VRMS; Low gain: 0.5 to 10 VRMS