Bently Nevada|3500/45 139554-01|AC LVDT Position I/O Module with External Terminations
Description
The 139554-01 is an AC Linear Variable Differential Transformer (AC LVDT) Position Input/Output (I/O) module designed for the Bently Nevada 3500 system. It interfaces with AC LVDT sensors to provide precise position measurements for machinery protection and condition monitoring. The module supports external termination blocks, offering flexibility in installation and configuration.
Features
- External Terminations: Supports external termination blocks for easy installation.
- Multiple Configurations: Compatible with various hazardous area approvals.
- High Accuracy: Ensures reliable and accurate position measurements.
- Versatile Applications: Suitable for a wide range of industrial applications, including axial position, differential expansion, and case expansion.
Technical Specifications
-
Frequency Response:
- Direct filter: 0.104 Hz to 500 Hz (rotor speed 25 to 1,500 cpm)
- Gap filter: -3 dB at 0.05 Hz
- Not 1X filter: 0.25 to 128 times rotor speed, Constant Q notch filter, minimum rejection in stopband of -50 dB
- 1X and NX vector, Not 1X, and composite parameters valid for machine speeds per selected NX value range
-
Accuracy:
- Direct and Gap: Within ±0.33% of full-scale typical, ±1% maximum
- 1X and NX: Within ±0.33% of full-scale typical, ±1% 1X maximum, ±3% NX maximum
- Not 1X: ±1% of full-scale typical, ±3% maximum
- Composite: ±1% of full-scale typical
-
Air Gap Measurement:
- Instantaneous Air Gap: Measures when pole-passing rate slows to less than one pole/second
- Average Air Gap: Averages values for all poles over one revolution
- Minimum Air Gap: Detects the minimum pole gap value in a revolution
- Maximum Air Gap: Detects the maximum pole gap value in a revolution
- Min Air Gap Pole Number: Identifies the pole number with the minimum gap value
-
Filter Quality:
- High-pass: 4-pole (80 dB per decade, 24 dB per octave)
- Low-pass: 2-pole (40 dB per decade, 12 dB per octave)
-
Thrust Measurement:
- Frequency Response: Direct filter -3 dB at 1.2 Hz; Gap filter -3 dB at 0.41 Hz
- Accuracy: Within ±0.33% of full-scale Direct typical, ±1% maximum
-
Dimensions:
- I/O Module: 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)
-
External Termination Blocks:
- Euro Style Connectors: 141208-01
- Terminal Strip Connectors: Not specified
-
Cables:
- Available lengths: 5 feet (1.5 m), 7 feet (2.1 m), 10 feet (3.0 m), 25 feet (7.6 m), 50 feet (15.2 m), 100 feet (30.5 m)
- Assembled or not assembled options
-
Hazardous Area Approvals:
- Options include cNRTLus (Class 1, Division 2) and ATEX/IECEx/CSA (Class 1, Zone 2)
-
Environmental Limits:
- Operating Temperature: -30°C to +65°C (-22°F to +150°F) with internal/external termination I/O module
- Storage Temperature: -40°C to +85°C (-40°F to +185°F)
- Humidity: 95% non-condensing
-
Firmware and Software Requirements:
- 3500/20 RIM Firmware rev. G
- 3500 Configuration Software 2.41
- 3500 Data Acquisition 2.20
- 3500 Operator Display 1.20
- 3500/93 Display Interface Module 135799-01
- For Valve Position using RPT, 3500 Configuration Software 3.00 or greater
Bently Nevada|3500/45 139554-01|AC LVDT Position I/O Module with External Terminations
Bently Nevada|3500/45 139554-01|AC LVDT Position I/O Module with External Terminations
Description
The 139554-01 is an AC Linear Variable Differential Transformer (AC LVDT) Position Input/Output (I/O) module designed for the Bently Nevada 3500 system. It interfaces with AC LVDT sensors to provide precise position measurements for machinery protection and condition monitoring. The module supports external termination blocks, offering flexibility in installation and configuration.
Features
- External Terminations: Supports external termination blocks for easy installation.
- Multiple Configurations: Compatible with various hazardous area approvals.
- High Accuracy: Ensures reliable and accurate position measurements.
- Versatile Applications: Suitable for a wide range of industrial applications, including axial position, differential expansion, and case expansion.
Technical Specifications
-
Frequency Response:
- Direct filter: 0.104 Hz to 500 Hz (rotor speed 25 to 1,500 cpm)
- Gap filter: -3 dB at 0.05 Hz
- Not 1X filter: 0.25 to 128 times rotor speed, Constant Q notch filter, minimum rejection in stopband of -50 dB
- 1X and NX vector, Not 1X, and composite parameters valid for machine speeds per selected NX value range
-
Accuracy:
- Direct and Gap: Within ±0.33% of full-scale typical, ±1% maximum
- 1X and NX: Within ±0.33% of full-scale typical, ±1% 1X maximum, ±3% NX maximum
- Not 1X: ±1% of full-scale typical, ±3% maximum
- Composite: ±1% of full-scale typical
-
Air Gap Measurement:
- Instantaneous Air Gap: Measures when pole-passing rate slows to less than one pole/second
- Average Air Gap: Averages values for all poles over one revolution
- Minimum Air Gap: Detects the minimum pole gap value in a revolution
- Maximum Air Gap: Detects the maximum pole gap value in a revolution
- Min Air Gap Pole Number: Identifies the pole number with the minimum gap value
-
Filter Quality:
- High-pass: 4-pole (80 dB per decade, 24 dB per octave)
- Low-pass: 2-pole (40 dB per decade, 12 dB per octave)
-
Thrust Measurement:
- Frequency Response: Direct filter -3 dB at 1.2 Hz; Gap filter -3 dB at 0.41 Hz
- Accuracy: Within ±0.33% of full-scale Direct typical, ±1% maximum
-
Dimensions:
- I/O Module: 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)
-
External Termination Blocks:
- Euro Style Connectors: 141208-01
- Terminal Strip Connectors: Not specified
-
Cables:
- Available lengths: 5 feet (1.5 m), 7 feet (2.1 m), 10 feet (3.0 m), 25 feet (7.6 m), 50 feet (15.2 m), 100 feet (30.5 m)
- Assembled or not assembled options
-
Hazardous Area Approvals:
- Options include cNRTLus (Class 1, Division 2) and ATEX/IECEx/CSA (Class 1, Zone 2)
-
Environmental Limits:
- Operating Temperature: -30°C to +65°C (-22°F to +150°F) with internal/external termination I/O module
- Storage Temperature: -40°C to +85°C (-40°F to +185°F)
- Humidity: 95% non-condensing
-
Firmware and Software Requirements:
- 3500/20 RIM Firmware rev. G
- 3500 Configuration Software 2.41
- 3500 Data Acquisition 2.20
- 3500 Operator Display 1.20
- 3500/93 Display Interface Module 135799-01
- For Valve Position using RPT, 3500 Configuration Software 3.00 or greater