LDM-1000【PDF 1/3 页】MODULE LVDT CONDITIONING DINRAIL

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LDM-1000 – LVDT/RVDT Signal Conditioning Module

10 to 30VDC operation

Standard DIN rail form factor

4 to 20mA and VDC outputs

Zero, span and phase adjustable

2.5, 5 and 10kHz excitation frequencies

Low noise, 3-pole Butterworth filter

Master/slave capability

Compatible with 4, 5 & 6-wire LVDTs/RVDTs

Works with very low input impedance LVDTs

and RVDTs

DESCRIPTION

The LDM-1000 is an extremely versatile and popular LVDT/RVDT signal conditioning module and the perfect

choice for industrial applications requiring the DIN standard rail mount. The LDM-1000 provides everything you

will need for accurately interfacing an AC operated Linear or Rotary Variable Differential Transformer to your

industrial position control system.

The LDM-1000 was designed with maximum sensor/system compatibility in mind. A wide range of gains,

excitation voltages and frequencies ensure compatibility with virtually all LVDT and RVDT type transducers. A

full-wave synchronous demodulator eliminates quadrature and harmonics to maximize external noise rejection.

The LDM-1000 also provides several different input/output options to accommodate varying PLC and analog I/O

requirements:

Single-ended voltage outputs with the use of 100% zero suppression to maximize the sensor stroke

utilization while simplifying programming (no need to deal with sign)

Bipolar voltage output to maximize A/D bit usage with most PLC analog input modules, for applications

requiring high resolution

4-20mA current output for applications requiring long signal runs or where noise immunity may be an

issue. The 4-20mA loop is driven by an internal power supply, provided by the LDM-1000.

Finally, the frequency response is internally selectable and so is the master/slave function which allows

synchronization of multiple LDM-1000 modules to prevent beat frequencies and cross talk between transducers.

Also see our other LVDT/RVDT signal conditioner models:

AC or DC supply, DC voltage, current and RS485 outputs, 1/8 DIN panel meter,

LVM-110

LiM-420

ATA-2001

IEM-422

PML-1000

MP-2000

±15VDC supply, ±10 and 0 to 10VDC outputs, open circuit board

24VDC supply, 4-20mA (3-wire) output, open circuit board

Line powered, DC voltage and current outputs, push-button programmable

Line powered, 4-20mA output, NEMA-13 rated enclosure

Line-powered, analog DC & RS232 outputs, ? DIN, dual channel set point controller with bit-

mapped display

Measurement Specialties, Inc. (NASDAQ MEAS) offers many types of sensors and signal conditioners . Data

sheets can be downloaded from our web site at: http://www.meas-spec.com/datasheets.aspx

Measurement Specialties acquired Schaevitz Sensors and the Schaevitz

trademark in 2000.

LDM-1000 Rev. 5

www.meas-spec.com

1/3

2013-July

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