Technical Data

• Sensor inputs:
  Two independent signal inputs for eddy current measuring chains. The signal inputs are differential inputs, galvanically isolated from the power supply.

• Input impedance:
  ≥100 kOhm

• Input voltage range:
  -1...-23 V DC

• Signal frequency range:
  0.017...70 Hz (1.02...4200 rpm)

• Signal voltage range:

  • Minimum range: 0...400 mVpeak
  • Maximum range: 0...8000 mVpeak
    Within this range, any value is freely selectable.

• Sensor supply:
  Each sensor has an own output buffer, galvanically isolated from all system voltages and the power supply of the monitor. Open circuit and short-circuit proof. Parallel connection with other monitors possible without mutual influences.

  • Nominal voltage: -26.7 V DC
  • Maximum supply current: Typ. 20 mA; max. 35 mA

• Control inputs:
  Common logic inputs for both channels.
  For choosing operating mode and limit values for "warning" and "danger":

  • open circuit or closed circuit mode
  • locking of monitor
    Measuring range multiplier to modify the alarm limits during run-up or run down.

• Adjustable range:
  1,000 to 4,999

  • 24 V Logic

• Input resistance:
  ≥30 kOhm

• Key pulse input:
  One pulse per revolution; input for system control.

  • 24 V logic
  • Input resistance: ≥30 kOhm
  • Pulse duration: Min. 10 µs (edge triggering)

• Voltage inputs:
  Two, one for each channel.

  • Input voltage range: 0...10 V
  • Input impedance: ≥100 kOhm
  • Resolution: 10 bit

• Power supply:

  • Max. system extension:
    Redundant supply input via two supply inputs, decoupled via diodes. At least one supply input is required for the supply of the module.
  • Supply voltage: 18....24....31.2 V DC according to IEC 654-2, class DC4
  • Power consumption: Max. 6 W (max. 250 mA at 24 V)

  Other supply voltages can be realized with additional system power supplies.
  At standalone operation, the number of modules in a system is unlimited.
  Max. 31 modules / 62 channels may be operated at one RS 485 bus.
  If more modules / channels are necessary, e.g. with an MMS 6815, another RS 485 bus must be installed.

• Environmental conditions:

  • Protection class:
    Monitor: IP 00 according to DIN 40050
    Front plate: IP21 according to DIN 40050

  • Climate conditions:
    According to DIN 40040 class KTF

  • Operating temperature range: 0....+65°C

  • Temperature range for storage and transport: -30....+85°C

  • Permissible relative humidity: 5....95%, non condensing

• Permissible vibration:
  According to IEC 68-2, part 6

  • Vibration amplitude: 0.15 mm in range 10...55 Hz
  • Vibration acceleration: 16.6 m/s² in range 55...150 Hz
  • Permissible shock:
    According to IEC 68-2, part 29
    • Peak value of acceleration: 98 m/s²
    • Nominal shock duration: 16 ms
  • EMC resistance: According to EN50081-1 / EN50082-2

• Dimensions:
  PCB/euro card format according to 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 Monitors (28 channels) per 19" frame