The DR7AC is a single channel signal-conditioning unit for use with transducers requiring AC excitation and synchronous demodulation, producing a DC output voltage or current.
To reduce electrical noise, system problems and the risk of accidental damage the DR7AC incorporates a DC-DC converter ensuring that the output of the unit is electrically isolated from the supply.
Units may be master-slaved in systems where carrier frequency beating is a problem.
The unit is housed in a DIN-rail mounting thermoplastic case with recessed screw-clamp terminals for all connections and 25-turn front-panel-accessible span and zero adjustments.
All other controls are internal including coarse gain and zero switches, a zero input switch and jumper links for master/slave setting and excitation frequency setting.
The unit is suitable for use with the complete range of RDP LVDT transducers.
DR7AC
DC Powered LVDT Transducer Amplifier
RDP Electrosense
- DIN Rail mount, LVDT Amplifier
- Compatible with any standard RDP LVDT (without integral electronics)
- Compatible with LIN & PY When fitted with two 1k Ohm bridge completion resistors (Does not provide analogue voltage linearisation for PY)
- Compatible with most LVDTs from any manufacturer
- Screw terminal connections
- Simple controls for gain and zero adjustment
- Input zero switch
Details
Specifications
Input Type
LVDT
# of Inputs
1
Output Type
0 - 10 V DC
±10 V DC
4 - 20 mA
±10 V DC
4 - 20 mA
Max Bandwidth
250 Hz
Excitation
1 V AC
3 V AC
3 V AC
Models
DR7AC
LVDT Amplifier