The rugged standard carrier frequency-measuring amplifiers are available as plug-in cards for 19” module racks or in protected (IP65) field housings.
All MESSOTRON CF-measuring amplifiers can be used for operation of inductive displacement sensors in differential inductor circuits (half bridges) and differential transformer circuits (full bridges, LVDTs). On the output side, the measurement value is provided through a 10 V voltage interface or 4...20 mA current interface which is standardized in accordance with DIN IEC 60381.
The measuring amplifiers are preset at the factory and can be readjusted in the field without a special tool.

MBI 46.31
- carrier frequency precision measuring amplifier series
- eurocard PCB or in field housing
- Sensor supply 5 kHz sine / 2 Veff
- Power supply ±15 VDC, +20...+30 VDC or 230 VAC
Optional:
- Power supply with 115 VAC
- other supply parameters (carrier frequency, amplitude)

MBI 46.33
- 2 channel carrier frequency measuring amplifier series
- in rugged IP 65 field housing
- sensor supply 5 kHz sinus / 2 Veff
- Power supply +20...+30 VDC or 230 VAC
Optional:
- Power supply with 115 VAC
- other supply parameters (carrier frequency, amplitude)