LDM-1000 – LVDT/RVDT Signal Conditioning Module
FEATURES
APPLICATIONS
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Standard DIN rail form factor
Voltage and current output signals
Phase correction
Status LED’s for power and loop integrity
Multiple LVDT master/slave capability
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Gas and steam turbine control systems
Process control systems
Reeler/dereeler control systems
Automotive test track instrumentation
Paper head box control
PERFORMANCE SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
Supply voltage
Supply current
Output types and ranges
Temp. coefficient of output
Voltage output noise & ripple
Current output noise & ripple
Current loop resistance
Frequency response
Non-linearity
Voltage
Current
Frequency
Transducer type
LVDT/RVDT input impedance
18 to 30VDC or 10 to 18VDC (jumper selectable, 18 to 30VDC as shipped)
65mA maximum
±5VDC, 0 to 5VDC, 0 to 10VDC, and 4 to 20mA (DIP switch selectable, ±5VDC as shipped)
±0.02% of FSO per degree F [±0.036% of FSO per degree C] over operating temp. range
5mV RMS maximum
25μA RMS maximum
700 ? ma ximum
250 or 1000Hz @ -3 dB (3-pole Butterworth, DIP switch selectable, 250Hz as shipped)
±0.02% of FSO
Transducer excitation
1 or 3 VRMS (DIP switch selectable; 3VRMS as shipped and with 18 to 30VDC supply voltage only)
25mA RMS
2.5, 5 or 10kHz (DIP switch selectable, 2.5kHz as shipped)
Transducer requirements
LVDT or RVDT with 4, 5 or 6 electrical connections
50? minimum @ 1 VRMS excitation ; 150? minimum @ 3 VRMS
ENVIRONMENTAL AND MECHANICAL SPECIFICATIONS
Operating temperature range
Storage temperature range
Mounting
Size
Wire terminal size
-13°F to +185°F [-25°C to 85°C]
-67°F to +257°F [-55°C to 125°C]
Standard DIN-3 rail mount
3.90 [99.0] high x 0.89 [22.5] wide x 4.51 [114.5] Deep
24 to 12 AWG [0.2 to 2.5mm]
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
WIRING
Download the operation manual at: http://www.meas-spec.com/manuals.aspx
LDM-1000 Rev. 5
www.meas-spec.com
2/3
2013-July
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