LDM-1000
LVDT/RVDT Signal Conditioning Module
TE CONNECTIVITY SENSORS
/// LDM-1000 OPERATION MANUAL
P/N 09290100-000 REV. C
05/2016
Page 3
1. Introduction
The LDM-1000 is an extremely versatile LVDT/RVDT (Linear or Rotary Variable Differential Transformer) signal conditioning
module. The module supplies an AC sine wave excitation to the LVDT or RVDT, and demodulates, filters, and amplifies the
output. It is the perfect choice for industrial applications requiring the DIN standard rail mount.
2. Product Specifications
For complete specifications and ordering information, please refer to the datasheet at:
http://www.te.com/usa-en/product-CAT-PSI0003.html
ELECTRICAL SPECIFICATIONS
Supply voltage
18 to 30VDC or 10 to 18VDC (jumper selectable, 18 to 30VDC as shipped)
Supply current
65mA maximum
Output types and ranges
±5VDC, 0 to 5VDC, 0 to 10VDC, and 4~20mA
(DIP switch selectable, ±5VDC as shipped)
Temp. coefficient of output
±0.02% of FSO per °F [±0.036% of FSO per °C] over the operating temperature range
Voltage output noise/ripple
5mV RMS maximum
Current output noise/ripple
25µA RMS maximum
Current loop resistance
700Ω maximum (with 18 to 30VDC supply voltage)
Frequency response
250 or 1000Hz @ -3 dB
(3-pole Butterworth, DIP switch selectable, 250Hz as shipped)
Non-linearity
±0.02% of FSO
Input sensitivity range
0.05 to 2.50 VRMS
Transducer excitation
Voltage
1 or 3 VRMS
(DIP switch selectable; 3VRMS as shipped, with 18 to 30VDC supply
voltage only)
Current
25mA RMS
Frequency
2.5, 5 or 10kHz
(DIP switch selectable, 2.5kHz as shipped)
Transducer requirements
Transducer type
LVDT or RVDT with 4, 5 or 6 electrical connections
LVDT/RVDT input impedance
50Ω minimum @ 1 VRMS excitation
; 150Ω minimum @ 3 VRMS
LVDT/RVDT full scale output
0.05 to 2.50 VRMS
ENVIRONMENTAL AND MECHANICAL SPECIFICATIONS
Operating temperature range
-13°F to +185°F [-25°C to +85°C]
Storage temperature range
-67°F to +257°F [-55°C to +125°C]
Mounting
Standard DIN-3 rail mount
Size
3.90 [99.0] high x 0.89 [22.5] wide x 4.51 [114.5] Deep
Wire terminal size
24 to 12 AWG [0.2 to 2.5mm]
IEC 60529 rating
IP60
Notes:
All values are nominal unless otherwise noted; dimensions are in inch [mm]
FSO (Full Scale Output) is the largest absolute value of the outputs measured at the range ends.
