DR7 DIN Rail Mounting Amplifier

LVDT amplifier
Strain gauge transducer amplifier
Simple trimpot controls
Voltage / 4-20mA output
DIN rail mounting Amplifier
Supply/output isolation


   Data sheet (399kb)
The DR7 is a DIN rail mounting amplifier designed to install in suitable cabinets along with other similar devices.
To reduce electrical noise, system problems and the risk of accidental damage the DR7 has full isolation between supply and output.
A wide supply voltage tolerance and selectable excitation ensure that the DR7 is compatible with a very wide selection of transducers and applications.

DR7AC dc powered LVDT transducer amplifier.    DR7AC technical manual (385kb)

D = 115mm
H = 99mm
W = 23mm
Compatible with Any standard RDP LVDT (without integral electronics)
LIN & PY When fitted with two 1k Ohm bridge completion resistors ( Does not provide analogue voltage linearisation for PY)
Most LVDTs from any manufacturer
Supply voltage 9V to 36V dc, 250mA Output ripple 5mV rms typical / 20uA rms typical
Transducer excitation 1/3V (user selectable), 25mA
3/5kHz (user selectable)
Input impedance ±130k Ohms
Output details 0 to 10V, 5mA (isolated)
±10V, 5mA (isolated)
4-20mA (loop resistance 100 Ohms to 500 Ohms) (isolated)
Temperature coefficient (combined zero and span) ±0.01% F.S. /C minimum
Signal input range 20mV to 4V Operating temperature range -10C to 60C
Linearity error ±0.1% F.S. Total weight 125g
Electrical output bandwidth 0 to 250Hz - -

DR7DC dc powered strain gauge transducer amplifier.    DR7DC technical manual (431kb)

D = 115mm
H = 99mm
W = 23mm
Compatible with Most full bridge strain gauge transducers
Supply voltage 9V to 36V dc, 120mA typical Output ripple 5mV rms typical / 20uA rms typical
Transducer excitation 3 to 10V (user selectable), 100mA maximum Input impedance 10MOhms minimum
Output details 0 to 10V, 5mA (isolated)
±10V, 5mA (isolated)
4-20mA (loop resistance 100 Ohms to 500 Ohms) (isolated)
Temperature coefficient (combined zero and span) ±0.005% F.S. /C minimum
Signal input range 4mV to 10V Operating temperature range -10C to 60C
Linearity error ±0.02% F.S. Total weight 130g
Electrical output bandwidth 0 to 5k/500/20Hz(user selectable) - -

All dimensions and specifications are nominal. www.rdpe.com/uk/dr7.htm 20170119
Due to our policy of on-going development, specifications may change without notice. Any modification may affect some or all of the specifications for our equipment.
 
UK Head Office
RDP Electronics Ltd
Grove Street, Heath Town
Wolverhampton, West Midlands, WV10 0PY
United Kingdom
Tel: +44 1902 457512
Fax: +44 1902 452000
Email: sales@rdpe.com
URL: www.rdpe.com
Registered in England No. 1688591

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