CF-measuring amplifier MBI 46.51.
Universal CF measuring amplifier for operation of inductive LVDT and LVIT transducers
- Robust circuitry proven in harsh industrial environments
- Suitable for almost all LVDT and LVIT transducers
- Wide adjustment range for gain, zero-offset and phase compensation
- Simple adjustment via jumpers and trim potentiometer
- Both 0...10V and 4...20mA signal output as standard
- Rugged die cast aluminium field housing IP65
- Easy installation due to external mounting holes
- Fast and safe installation due to robust spring terminals
- Safe during installation / operation due to encapsulated circuit board
Important features
- Supply voltage: +24 VDC (10 .... 36 VDC)
- Carrier frequency: 5 kHz (10 kHz / 20 kHz)
- Output signal: 0...10 VDC / 4 ... 20 mA
- Type: Cast aluminum housing with cable gland
Technical data
| Linearity | < 0,1 % FSO | |
| Carrier frequency | 5 kHz ±5 % (sine); optional: 10kHz / 20 kHz | |
| Dynamic range | 500 Hz (±3 dB) for 5 kHz carrier frequency | |
| Supply voltage (primary) | approx. 2 Vrms at 5 kHz, sinusoidal; max. 12 mArms | |
| Input resistance (secondary) | approx. 100 kΩ | |
| Output signal | 4 ... 20 mA, load < 500 Ω and 0...10 VDC, load resistance > 10 kΩ | |
| Noise level and residual carrier voltage | < 5 mVrms | |
| Temperature coefficient of zero-value | < 0,10 % / 10 K at 100 mV/V < 0,15 % / 10 K at 20 mV/V |
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| Temperature coefficient of gain | < 0,05 % / 10 K at 100 mV/V < 0,15 % / 10 K at 20 mV/V |
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| Operating temperature | -30 ... 70 °C | |
| Storage temperature | -30 ... 85 °C | |
| Electromagnetic compatibility | DIN EN 61326-1 | |
| Electrical safety | DIN EN 61010-1 |
Field housing
| Supply voltage | 10 ... 36 VAC | |||||
| Power consumption |
max. 60 mA @ 24VDC
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| Electrical connection | 2 cable glands IP68 (power supply/output signal and sensor) spring-loaded terminals inside |
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| Dimension | approx. W 115 x H 34,5 x D 64 mm | |||||
| Weight |
approx. 0,3 kg
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| Protection (DIN 40050) |
IP 66
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Suitable sensors
| Inductive full-bridge differential transformers (LVDT) | Inductive full bridge (4-wire) | |||||
| Inductive half-bridge (LVIT) and long stroke transducers (eddy current) | Inductive half bridges (3-wire) | |||||
| Rated output |
20 ... 740 mV/V
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| Input impedance |
100 ... 1000 Ω
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Model list
| Product code | Design | Supply | Output Signal |
| MBI 46.51.39 | Field housing | +24 VDC | 0 ... 10 V / 4 ...20 mA |
| MBI 46.52.39 | DIN rail mounting | +24 VDC | 0 ... 10 V / 4 ...20 mA |
| Options | Order code |
| other carrier frequencies 10kHz / 20 kHz | /... kHz |
Do you have further technical questions about the product?
We will be happy to help you determine the order code and provide you with further specific information for your required product.