Bently Nevada 133442-01 I/O Module with Internal Terminations

Specifications

Inputs

• Signal:

  • Each 3500/50M Tachometer Module accepts up to two transducer signals from proximity probe transducers or magnetic pickups.
  • Input signal range: +10.0 V to -24.0 V (signals exceeding this range are limited internally by the module).
  • Input impedance:
    • Standard: 20 kΩ
    • TMR (Triple Modular Redundancy): 40 kΩ
    • Internal Barrier: 7.15 kΩ

• Power consumption: 5.8 watts, typical

• Transducers:

  • Accepts 1 to 2 proximity transducer signals
  • Restrictions may apply to magnetic pickups (see Warning on page 2).

Outputs

• Front Panel LEDs:

  • OK LED: Indicates proper operation of the 3500/50M Tachometer Module.
  • TX/RX LED: Indicates communication with other modules in the 3500 rack.
  • Bypass LED: Indicates the module is in Bypass Mode.

• Buffered Transducer Outputs:

  • One coaxial connector per channel on the front of the module.
  • Buffered outputs are available at the I/O module via Euro style connectors.
  • Output Impedance: 550 Ω

• Transducer Power Supply: 24 Vdc, 40 mA maximum per channel

• Recorder Outputs:

  • Current: +4 to +20 mA proportional to module full-scale range (rpm or rpm/min), provided individually for each channel.
  • Monitor operation unaffected by short circuits on recorder outputs.
  • Voltage Compliance (current output): 0 to +12 Vdc range across load, Load resistance 0 to 600 Ω
  • Resolution: 0.3662 µA per bit ±0.25% error at room temperature, ±0.7% error over temperature range
  • Update rate: Approximately 100 ms

Signal Conditioning

• Specified at +25 ºC (+77 ºF)

• Speed Input:

  • Supports 1 to 255 events per revolution for Rotor Acceleration and Zero Speed channel types.
  • Other channel types support 0.0039 to 255 events per revolution.
  • Maximum full scale range: 99,999 rpm
  • Maximum input frequency: 20 kHz
  • Minimum input frequency:
    • Proximity transducers: 0.0167 Hz (1 rpm for 1 event per revolution)
    • Passive magnetic pickups: 3.3 Hz

• RPM Accuracy:

  • Less than 100 rpm: ± 0.1 rpm
  • 100 to 10,000 rpm: ±1 rpm
  • 10,000 to 99,999 rpm: ± 0.01% of true shaft speed

• RPM/Min Accuracy: ± 20 rpm/min

Transducer Conditioning

• Auto Threshold: For any input above 0.0167 Hz (1 rpm for 1 event/revolution). Minimum signal amplitude for triggering is 1 volt peak-to-peak.

• Manual Threshold: User selectable from +9.5 Vdc to -23.5 Vdc. Minimum signal amplitude for triggering is 500 millivolts peak-to-peak.

• Hysteresis: User selectable from 0.2 to 2.5 volts

Alarms

• Alarm Setpoints:

  • Alarm 1 levels can be set for each measured value.
  • Alarm 2 setpoints can be set for any two measured values.
  • Setpoints are adjustable from 0 to 100% of full scale for each measured value.

• Alarm Time Delays:

  • Alarm 1 Time Delay: 1 to 60 seconds in 1-second intervals
  • Alarm 2 Time Delay: 1 to 60 seconds in 0.1-second intervals

Proportional Values

• Speed measurements used to monitor a machine. The module returns values like:
  • Rotor Speed, Speed1, Speed Band, Peak Speed2, Rotor Speed 2, etc.
  • Values for different channel types like Rotor Acceleration, Zero Speed, Reverse Rotation.

Physical

• I/O Modules (internal barrier):
  • Dimensions (Height x Width x Depth): 241.3 mm x 24.4 mm x 163.1 mm (9.50 in x 0.96 in x 6.42 in)
  • Weight: 0.46 kg (1.01 lb)

Environmental Limits

• Operating Temperature:
  • With Internal/External Termination I/O Module: -30 ºC to +65 ºC (-22 ºF to +150 ºF)
• Storage Temperature: -40 ºC to +85 ºC (-40 ºF to +185 ºF)
• Humidity: 95% Non-condensing

Hazardous Area Approvals

• With I/O module ordering options without internal barriers:
  • Ex nC [L] IIC, Class I, Division 2
  • AEx nC IIC, Class I, Division 2, Groups A, B, C, D, T4 @ Ta = -20 °C to +65 °C (-4 °F to +150 °F) per drawing 149243

Compliance and Certifications

• EMC Standards:

  • EN 61000-6-2 Immunity for Industrial Environments
  • EN 61000-6-4 Emissions for Industrial Environments
  • EN 55011/CISPR 11 ISM Equipment

• European Community Directives:

  • EMC Directive 2004/108/EC
  • Electrical Safety Standards: EN 6110-1
  • Low Voltage Directive 2006/95/EC

Ordering Considerations

• External Termination Blocks cannot be used with Internal Termination I/O modules.
• When ordering I/O Modules with External Terminations, order External Termination Blocks and cables separately.
• Use Bussed External Termination Blocks with TMR I/O modules only.