Overview

The EPRO MMS 6140 is a Monitor for Absolute Shaft Vibration designed for accurate monitoring of vibration levels in various industrial applications. Its robust design and multiple features make it suitable for integration with a wide range of sensors.

Technical Specifications

• Sensor Inputs:

  • Two independent sensor inputs.
  • Channel 1: Eddy current sensors.
  • Channel 2: Seismic or piezo-electric sensors.
  • Differential inputs, galvanically isolated from the system supply, open circuit and short circuit proof.
  • Channel 1 Input Impedance: ≥ 100 kΩ
  • Channel 1 Input Voltage Range: -1 to -23 V
  • Channel 1 Signal Frequency Range: 1/5 to 2000 Hz
  • Channel 1 Signal Voltage Range: Minimum: 0 to 400 mVpp; Maximum: 0 to 2000 mVpp (freely configurable).
  • Channel 2 Input Impedance: ≥ 100 kΩ
  • Channel 2 Input Voltage Range: -5 to +15 V
  • Channel 2 Signal Frequency Range: 5/10 to 1600 Hz (according to VDI 2056 / DIN 45666 / ISO 3945).
  • Channel 2 Signal Voltage Range: Minimum: 311 mVpp; Maximum: 9500 mVpp (freely configurable).

• Sensor Supply:

  • Individual supply output for sensors, galvanically separated from system voltages.
  • Nominal Voltage: -26.7 V
  • Available Output Current: Typical 20 mA / Maximum 35 mA

• Key Pulse Input:

  • 1 pulse per revolution for system analysis purposes.
  • Input Resistance: >30 kΩ
  • Pulse Duration: Minimum 10 µs (edge-triggered).

• Voltage Inputs:

  • Two inputs, one for each channel.
  • Input Range: 0 to 10 V
  • Input Impedance: >100 kΩ
  • Resolution: 10 bit

• Control Inputs:

  • Common logical binary inputs for both channels.
  • Mode selection for limit values for “warning” and “danger.”

• Signal Outputs:

  • One current output per channel, proportional to measuring range.
  • Nominal Range: 0/4 to 20 mA; Permissible Burden: ≤500 Ω; Resolution: 16 bit; Accuracy: ±1% of f.s.d.
  • One voltage output per channel, proportional to chosen variable.
  • Nominal Range: 0 to +10 V; Load Resistance: ≥10 kΩ; Resolution: 8 bit; Accuracy: ±1% of f.s.d.
  • Dynamic signal voltage output: Nominal Range: 0 to 20 Vpp; Load Resistance: >10 kΩ.
  • Frequency Range: Channel 1: 0.1 Hz to 16 kHz; Channel 2: 0.1 Hz to 5 kHz.
  • DC part of the sensor signal output (only for channel 1): Nominal Range: 0 to 10 V DC; Load Resistance: >10 kΩ; Resolution: 12 bit; Accuracy: ±1% of f.s.d.

• Operating Elements at the Module Front:

  • Two independent sensor signal outputs (one for each channel).
  • Internal resistance: 1 kΩ.
  • Two green LEDs for "Channel Clear"; two red LEDs for pre and main alarm.
  • RS232 Interface for configuration and data interchange.
  • Handle for module insertion/removal.

• Power Supply:

  • Redundant supply input via two decoupled inputs.
  • Supply Voltage: 18 to 31.2 V DC according to IEC 654-2, class DC4.
  • Power Consumption: Maximum 8 W (max. 300 mA at 24 V).
  • Max. 31 modules / 62 channels may be operated at one RS 485 bus.

• Environmental Conditions:

  • Protection Class:
    • Module: IP00 (DIN 40050)
    • Front Plate: IP21 (DIN 40050)
  • Operating Temperature Range: 0 to +65°C
  • Storage and Transport Temperature Range: -30 to +85°C
  • Relative Humidity: 5 to 95%, non-condensing
  • Vibration Resistance: IEC 68-2, part 6 (0.15 mm in range 10-55 Hz, 16.6 m/s² in range 55-150 Hz)
  • Shock Resistance: IEC 68-2, part 29 (peak acceleration 98 m/s², nominal shock duration 16 ms)
  • EMC Resistance: EN50081-1 / EN50082-2

• Physical Dimensions:

  • PCB/euro card format: DIN 41494 (100 x 160 mm)
  • Width: 30.0 mm (6 TE)
  • Height: 128.4 mm (3 HE)
  • Length: 160.0 mm
  • Net Weight: Approx. 320 g
  • Required Space: 14 modules (28 channels) per 19" frame