135145-01 Position I/O Module | Bently Nevada

Overview of 135145-01 Position I/O Module with External Terminations for use with Proximitors, RPTs, or DC LVDTs

Description

The 135145-01 Position I/O Module is designed for use with the 3500/45 Position Monitor. This module accommodates inputs from various transducers, including proximity transducers, Rotary Position Transducers (RPTs), and DC Linear Variable Differential Transformers (DC LVDTs). It conditions these inputs and compares them with user-programmable alarms to monitor machinery positions effectively.

Technical Specifications

Inputs

• Signal Inputs: Accepts 1 to 4 signal inputs.
• Power Consumption:
  • 7.7 watts (typical, using Position I/O)
  • 8.5 watts (typical, using AC LVDT I/O)
  • 5.6 watts (typical, using Rotary Potentiometer I/O)
• Input Impedance:
  • 1 MΩ (DC LVDT inputs)
  • 10 kΩ (Proximitor or RPT inputs)
  • 137 kΩ (AC LVDT inputs)
  • 200 kΩ (Rotary Potentiometer inputs)

Outputs

• Front Panel LEDs:
  • OK LED: Indicates proper operation of the monitor.
  • TX/RX LED: Indicates communication with other modules.
  • Bypass LED: Indicates when the monitor is in Bypass Mode.
• Transducer Power Supply:
  • Proximitor or RPT: -24 Vdc
  • DC LVDT: +15 Vdc
  • AC LVDT: 2.3Vrms 3400Hz sine wave
  • Rotary Potentiometer: -12.38 Vdc
• Recorder:
  • +4 to +20 mA outputs proportional to monitor full-scale values, unaffected by short circuits.
• Voltage Compliance: 0 to +12 Vdc across load with a resistance of 0 to 600 Ω.
• Resolution: 0.3662 µA per bit with ±0.25% error at room temperature and ±0.7% error over the temperature range. The update rate is 100 ms or less.

Signal Conditioning

• Thrust and Differential Expansion Accuracy: Within ±0.33% of full-scale typical, ±1% maximum.
• Frequency Response: Direct filter -3 dB at 1.2 Hz, Gap filter -3 dB at 0.41 Hz.

Physical

• Monitor Module Dimensions: 241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in), Weight: 0.91 kg (2.0 lb).
• I/O Modules Dimensions: 241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in), Weight: 0.20 kg (0.44 lb).

Environmental Limits

• Operating Temperature: -30°C to +65°C (-22°F to +150°F)
• Storage Temperature: -40°C to +85°C (-40°F to +185°F)
• Humidity: 95% Non-condensing