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CF measuring amplifier MBI 50.25.

1-channel carrier frequency measuring amplifier for operation of inductive transducers / LVDT sensors in die-cast field housing
  • Proven analogue circuit for industry and laboratory
  • Robust design on eurocard PCB or in field housing
  • System-compatible for 19"-housing and 19" sub-racks

Important features

  • Supply: 230 VAC
  • Carrier frequency: 10 kHz
  • Output signal: ±10 V or 4...20mA
  • Design: Die-cast field housing

Suitable sensors

     
Type   Inductive transducers in differential LVIT sensor or differential transformer circuits
Required sensitivity   10 ... 400 mV/V

Oscillator

   
Carrier frequency
approx. 10 kHz (trapezoidal)
Bridge supply voltage
ca. 1 Vrms

Amplifier

   
Linearity error
< 0.1%
Temperature coefficient of zero point < 0.1 % / 10 K
Temperature coefficient of sensitivity
 < 0.2 % / 10K
Interference voltage (residual carrier voltage)
< 2 mVrms
Load capacity max.
10 mA
Drift
ca. ±10 % of final value; up to ±100 % possible as special version
Cutoff frequency for the measurement signal (-3 dB)
500 Hz

General information

   
Max. current 25 mA at ±15 V supply without current output stage
50 mA at ±15 V supply with current output stage
Zero-point adjustment through potentiometer
Gain adjustment fine: by potentiometer
coarse: by fixed resistor
Phase adjustment through fixed capacitor
Electrical connector Plug connector according to DIN 41612, 32-pin, type C
Special version: 16-pin terminal block
Required mating connector Female connector according to DIN 41612, 32-pin, type C or D
Operating temperature 0 ... 60 °C
Storage temperature -25 ... 85 °C

Type-dependent information

   
Operating voltage ±15 V; 230 V~ im Feldgehäuse
Rated output ±10 V; 4 ... 20 mA
Dimensions without front panel and field housing ca. 100 x 167 x 25 mm
Front panel dimensions 35,3 x 128,4 mm (19": 7 TE x 3 HE)
Weight without front panel and field housing ca. 0,2 kg
Weight with front panel ca. 0,23 kg

Version overview

Product code Casing Supply Output signal
MBI 50.25.10
Die-cast field housing
230 V~
10 V
MBI 50.25.12
Die-cast field housing
230 V~
4 ... 20 mA
Note: The 10 V output provides a Nominal output signal of ±10 V for balanced systems (these are the most common inductive transducers). With unbalanced systems, the output is 0 ... 10 V.

Downloads

icon-pdf-blueProduct data sheet

icon-pdf-blueInstallation / Operating instructions

icon-pdf-blueElectronics overview

Accessories

Connector strip

Accessory

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