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Bently Nevada 991-06-50-01-01 Thrust Transmitter
Manufacturer:Bently Nevada
Product Number:991-06-50-01-01
Product Type:Thrust Transmitter
Origin:USA
Dimensions:100.1 x 73.9 x 53.3mm
Weight:0.43kg
Views:36
Payment Methods:T/T, PayPal, Western Union
Condition:New & In Stock
Warranty:1 Year
Lead Time:1-3 Working Days
Certificate:COO
Courier partners:DHL, UPS, TNT, FedEx and EMS.
Business hours:7*24
Product Description
The Bently Nevada 991 Thrust Transmitter is a 2-wire, loop-powered device designed for OEMs using centrifugal air compressors, pumps, motors, or fans. It converts shaft axial displacement from a 3300 NSv proximity probe into a 4–20 mA current signal, enabling easy integration into control systems for machinery protection and diagnostics.
Key Features
-
Direct integration with 3300 NSv Proximity Probes
-
Delivers 4–20 mA signal proportional to shaft thrust
-
PROX OUT and COM terminals for vibration/gap diagnostics
-
Built-in zero/span adjustments
-
Signal defeat and power-up inhibit functions
-
Potted design suitable for 100% condensing humidity
-
DIN rail or bulkhead mounting options
Applications
-
Centrifugal air compressors
-
Small industrial pumps
-
Electric motors and cooling fans
-
Machinery requiring axial position monitoring
-
OEM skid packages
-
Areas with limited clearance or harsh environments
Advantages
-
Compact and rugged for tight installations
-
Accurate axial position monitoring with fast signal recovery
-
Supports portable diagnostics with dynamic output
-
Enhanced signal integrity with recommended test adapter
-
Complies with global certifications (CSA, ATEX, IECEx)
-
Maintains loop protection from faulty probe or wiring issues
Technical Specifications
| Parameter | Value |
|---|---|
| Input | 3300 NSv Proximity Probe (1 probe + extension cable) |
| Power Supply | +12 to +35 VDC |
| Output Signal | 4–20 mA |
| Loop Accuracy | ±1.5% full scale |
| Max Loop Resistance | 1000 Ω @ 35 VDC |
| Current Limiting | 23 mA typical |
| Zero/Span Adjustments | External potentiometers |
| Linear Range (Prox Out) | 0.25 to 1.65 mm (10 to 65 mils) |
| Temperature Stability | ±10% (0°C to +70°C) |
| Operating Temp (Transmitter) | -35°C to +85°C |
| Operating Temp (Probe) | -52°C to +177°C |
| Relative Humidity | 100% condensing, non-submerged |
| Case Material | AISI 303/304 Stainless Steel |
| Dimensions | 100.1 x 73.9 x 53.3 mm |
| Weight | 0.43 kg |
FAQ
Q1: What is the main function of the 991 Thrust Transmitter?
A1: It converts axial shaft displacement into a 4–20 mA signal for machinery monitoring.
Q2: What sensor is compatible with this transmitter?
A2: It works with the Bently Nevada 3300 NSv proximity probe and matching extension cables.
Q3: Can I use this in hazardous areas?
A3: Yes, it has approvals for CSA Division 2, ATEX Zone 0/2, and IECEx.
Q4: Is the PROX OUT signal isolated?
A4: No, use the 122115-01 Test Adapter for safe connection to AC-powered test equipment.
Q5: What mounting options are available?
A5: It supports DIN-rail clips and bulkhead screws as standard.
Q6: What happens if the probe becomes disconnected?
A6: The output drops below 3.6 mA within 100 µs to avoid false alarms.
Q7: What is the linear output range?
A7: 0.25 to 1.65 mm (10 to 65 mils) for the Prox Out dynamic signal.
Q8: Can it be used for plant-wide diagnostics?
A8: No, it’s not suitable for systems like System 1. It’s intended for simpler monitoring setups.
Q9: What’s the typical leadwire distance for the Proximitor output?
A9: Up to 3 meters (10 feet) from the transmitter to the BNC diagnostic output.
Q10: What tools are recommended for testing?
A10: Use the 122115-01 Test Adapter for signal isolation and analysis with oscilloscopes.
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Bently Nevada 991-06-50-01-01 Thrust Transmitter
Manufacturer:Bently Nevada
Product Number:991-06-50-01-01
Product Type:Thrust Transmitter
Origin:USA
Dimensions:100.1 x 73.9 x 53.3mm
Weight:0.43kg
Views:36
Payment Methods:T/T, PayPal, Western Union
Condition:New & In Stock
Warranty:1 Year
Lead Time:1-3 Working Days
Certificate:COO
Courier partners:DHL, UPS, TNT, FedEx and EMS.
Business hours:7*24
Product Description
The Bently Nevada 991 Thrust Transmitter is a 2-wire, loop-powered device designed for OEMs using centrifugal air compressors, pumps, motors, or fans. It converts shaft axial displacement from a 3300 NSv proximity probe into a 4–20 mA current signal, enabling easy integration into control systems for machinery protection and diagnostics.
Key Features
-
Direct integration with 3300 NSv Proximity Probes
-
Delivers 4–20 mA signal proportional to shaft thrust
-
PROX OUT and COM terminals for vibration/gap diagnostics
-
Built-in zero/span adjustments
-
Signal defeat and power-up inhibit functions
-
Potted design suitable for 100% condensing humidity
-
DIN rail or bulkhead mounting options
Applications
-
Centrifugal air compressors
-
Small industrial pumps
-
Electric motors and cooling fans
-
Machinery requiring axial position monitoring
-
OEM skid packages
-
Areas with limited clearance or harsh environments
Advantages
-
Compact and rugged for tight installations
-
Accurate axial position monitoring with fast signal recovery
-
Supports portable diagnostics with dynamic output
-
Enhanced signal integrity with recommended test adapter
-
Complies with global certifications (CSA, ATEX, IECEx)
-
Maintains loop protection from faulty probe or wiring issues
Technical Specifications
| Parameter | Value |
|---|---|
| Input | 3300 NSv Proximity Probe (1 probe + extension cable) |
| Power Supply | +12 to +35 VDC |
| Output Signal | 4–20 mA |
| Loop Accuracy | ±1.5% full scale |
| Max Loop Resistance | 1000 Ω @ 35 VDC |
| Current Limiting | 23 mA typical |
| Zero/Span Adjustments | External potentiometers |
| Linear Range (Prox Out) | 0.25 to 1.65 mm (10 to 65 mils) |
| Temperature Stability | ±10% (0°C to +70°C) |
| Operating Temp (Transmitter) | -35°C to +85°C |
| Operating Temp (Probe) | -52°C to +177°C |
| Relative Humidity | 100% condensing, non-submerged |
| Case Material | AISI 303/304 Stainless Steel |
| Dimensions | 100.1 x 73.9 x 53.3 mm |
| Weight | 0.43 kg |
FAQ
Q1: What is the main function of the 991 Thrust Transmitter?
A1: It converts axial shaft displacement into a 4–20 mA signal for machinery monitoring.
Q2: What sensor is compatible with this transmitter?
A2: It works with the Bently Nevada 3300 NSv proximity probe and matching extension cables.
Q3: Can I use this in hazardous areas?
A3: Yes, it has approvals for CSA Division 2, ATEX Zone 0/2, and IECEx.
Q4: Is the PROX OUT signal isolated?
A4: No, use the 122115-01 Test Adapter for safe connection to AC-powered test equipment.
Q5: What mounting options are available?
A5: It supports DIN-rail clips and bulkhead screws as standard.
Q6: What happens if the probe becomes disconnected?
A6: The output drops below 3.6 mA within 100 µs to avoid false alarms.
Q7: What is the linear output range?
A7: 0.25 to 1.65 mm (10 to 65 mils) for the Prox Out dynamic signal.
Q8: Can it be used for plant-wide diagnostics?
A8: No, it’s not suitable for systems like System 1. It’s intended for simpler monitoring setups.
Q9: What’s the typical leadwire distance for the Proximitor output?
A9: Up to 3 meters (10 feet) from the transmitter to the BNC diagnostic output.
Q10: What tools are recommended for testing?
A10: Use the 122115-01 Test Adapter for signal isolation and analysis with oscilloscopes.
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