177230-00-01-CN Bently Nevada Transmitter 4-20mA

Bently Nevada 177230-00-01-CN Seismic Transmitter – 4-20 mA Loop for PLC and DCS Systems

Electrical Specifications and Output Signal

• Excitation voltage: 12 to 30 Vdc with current limited to 40 mA.
• Output signal: 4 to 20 mA current loop from Pin A to Pin B.
• Full scale range: 0 to 12.7 mm/s (0 to 0.5 in/s) ±10%.
• Zero level: 4 ± 0.3 mA equals 0.0 mm/s vibration.
• Full scale level: 20 ± 2 mA equals the full measurement range.
• Settling time: less than 15 seconds within 2% of final value.
• Frequency response: 10 Hz to 1 kHz ±10% (600 cpm to 60 kcpm ±10%).
• Output signal proportion: directly proportional to RMS vibration levels.

Connector Wiring Convention – 3-Pin MIL-C-5015

• Pin A: 4-20 mA Positive Loop (positive with reference to Pin B).
• Pin B: 4-20 mA Loop Return (negative loop return for Pin A and common for dynamic signal).
• Pin C: Dynamic Acceleration Signal (unbuffered, referenced to Pin B).
• Connector type: 3-pin MIL-C-5015, 316L stainless steel top entry.

Mechanical Dimensions and Materials

• Diameter: 25.4 mm (1.00 in) for compact installation.
• Height: 66.0 mm (2.60 in) from base to connector top.
• Weight: 131 g (4.62 oz) typical – lightweight design.
• Case material: 316L stainless steel for excellent corrosion resistance.
• Mounting hole in body: 1/4-28 UNF threaded connection.
• Alternative mounting threads: M6 x 1 SI, M8 x 1.25 SI, or 1/4-28 UNF.
• Mounting torque: 4 to 7 N-m (35.4 to 62.0 in-lbf).

Environmental Limits and Durability

• Operating temperature: -40°C to +85°C (-40°F to +185°F) for harsh sites.
• Relative humidity: to 100% non-submerged condensing conditions.
• Sensor seal: hermetically sealed for moisture protection.
• Shock survivability: 9.810 m/s² (1.000 g peak) maximum drop test.
• Electrical isolation: greater than 10⁸ ohms between circuits and case.
• Isolation breakdown voltage: 600 Vrms with less than 1 mA leakage.
• Magnetic field sensitivity: less than 20 μm/s/gauss (790 μin/s/gauss) peak.

Performance and Sensing Technology

• Sensing element type: ceramic / shear for stable long-term performance.
• Mounted resonant frequency: greater than 12 kHz for high-frequency response.
• Transverse sensitivity: less than 5% of sensitivity – minimal cross-axis error.
• Intended use: directly interfaces with PLCs, DCS, and SCADA systems.
• Internal power supply requirement: current limited in the 30 mA to 35 mA range typically.

Frequently Asked Questions (FAQ)

• Q: What output signal does the 177230-00-01-CN provide?
  A: It provides a 4 to 20 mA current loop signal proportional to RMS vibration velocity.
• Q: Can I connect this transmitter directly to a PLC?
  A: Yes. Bently Nevada designed it for direct connection to PLCs, DCS, and SCADA systems.
• Q: What is the measurement range of this model?
  A: Full scale range is 0 to 12.7 mm/s (0 to 0.5 in/s) ±10%.
• Q: What frequency range does it cover?
  A: Frequency response is 10 Hz to 1 kHz ±10% (600 cpm to 60 kcpm).
• Q: Is the 177230-00-01-CN hermetically sealed?
  A: Yes. The sensor seal is hermetically sealed for 100% non-submerged humidity conditions.
• Q: What is the operating temperature range?
  A: From -40°C to +85°C (-40°F to +185°F).
• Q: Is the 177230-00-01-CN available for immediate shipment?
  A: Yes. We have new original stock and ship within 5 days via DHL/FedEx/UPS.
• Q: What mounting thread does this transmitter use?
  A: It has a 1/4-28 UNF mounting hole. Adapters for M6 x 1 SI or M8 x 1.25 SI are also available.
• Q: Can I return this item if it does not fit my system?
  A: We accept returns within 30 days from delivery.

Contact Information Inquiries: sales@nex-auto.com , +86 153 9242 9628
Partner NexAuto Technology Limited: https://www.nex-auto.com/