RDP Home Page Banner

S7AC dc powered LVDT transducer amplifier.

LVDT amplifier
High environmental protection
Voltage / 4-20mA output
Simple trimpot controls
image of S7AC dc powered LVDT transducer amplifier.
Signal conditioning is required where the output of a transducer needs to be boosted or changed into a form suitable for the monitor or logging device which will be used. These amplifiers are suitable for LVDT transducers.
Our S7 amplifiers are specifically designed to be installed close to the transducer so that the signal can be boosted as soon as possible. The S7 signal conditioning units are mounted in a die-cast aluminium housing and have a good level of environmental protection and screening from electrical noise.
A very wide range of gain adjustment ensures that our amplifiers are compatible with the vast majority of LVDT sensors available from any manufacturer.
dimensional drawing of S7
Cable gland cable size = 3.0mm to 6.5mm
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 (dual) ±6V to ±18Vdc, 50mA
Supply voltage (single, must be floating) 12V to 36Vdc, 50mA
Output 1 ±4V to ±10V (may be affected by supply voltage)
Output 2 4 to 20mA (loop resistance 100Ω to 550Ω)
Output ripple 5mV peak-to-peak typical
Output ripple (4-20mA output) 10uA peak-to-peak typical
Approximate zero adjustment range ±5V
Analogue output bandwidth 500Hz
Signal input range 0.02V to 4V
Amplifier gain range 0.07 to 500
Transducer excitation 1V, 5kHz, 25mA maximum
Linearity error ±0.1% F.S.
Temperature coefficient (zero) ±0.005% F.S. /℃ minimum
Temperature coefficient (span) ±0.01% F.S. /℃ minimum
Operating temperature range -10℃ to 60℃
Total weight 260g