Products
MODEL 119-002 LVDT/LVRT CONDITIONER
Description
The Model 119-002 LVDT/LVRT conditioner is a two-channel module that plugs into Encore's 19" GPSC instrumentation rack, which accommodates up to eight modules (16 channels). An AC power supply is built into the rack, and provides the required unregulated DC voltages to operate the modules.
The Model 119-002 provides all transducer excitation, phase demodulation, gain, and filtering required to read position information from a Linear Variable Displacement Transducer. Multiple channels in a rack may be synchronized to reduce inter-channel crosstalk. Buffered front panel monitoring points are provided for oscillator output, LVDT secondary, and amplifier DC output.
Specifications
Transducer excitation: 3VRMS nominal; adjustable from 2.8-6.3VRMS with on-board trimpot
Excitation frequency: 2.5kHz; settable from 1-10kHz on board with components on plugin header
Oscillator sync: One channel per rack designated as Master, all others as Slaves; jumper selectable on board
Gain: Front-panel adjustable over a 9:1 span, plus switch-selectable gain range of 1, 4, or 10
Demodulation phase: Front-panel adjustable to properly match transducer to demodulator
Offset: Front panel zero adjustment, with two jumper-selectable ranges
Filtering: Three-pole active lowpass filter, with frequency dependent on oscillator frequency; components on plugin header
Signal output: ±10V max, 10mA peak load
Test points: Three pairs of mini-banana jacks per channel provide common-referenced LVDT primary, LVDT secondary, and DC output monitoring
Power: Unregulated ±24V from rack-mounted supply
Mechanical: 19"W x 5.25"H x 9"D, 8 module (16 channel) rack adapter, Model 4015 GPSC series
Carrying case: Two-module (four channel) desktop case, Model 4017-106
