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Bently Nevada 21502-04 Velomitor Piezo-Velocity Sensor
Manufacturer:Bently Nevada
Product Number:21502-04
Product Type:Velomitor Piezo-Velocity Sensor
Origin:USA
Dimensions:90 mm × 35 mm × 120 mm
Weight:0.30 kg
Views:151
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 21502-04 Velomitor Piezo-Velocity Sensor is a self-generating, industrial-grade vibration sensor that produces a voltage signal proportional to vibration velocity. Designed for long-term monitoring of casing or housing vibration, it is a key component in machinery protection systems used in power generation, oil & gas, and petrochemical industries.
This model combines the ruggedness of a piezoelectric velocity transducer with the precision required for predictive maintenance. Its stainless-steel enclosure, wide operating temperature range, and factory calibration ensure dependable performance even in harsh field conditions.
Technical Specifications
| Parameter | Description |
|---|---|
| Model Number | 21502-04 |
| Module Type | Velomitor Piezo-Velocity Sensor |
| Measurement Type | Vibration Velocity (mm/s or in/s) |
| Sensitivity | 100 mV/in/s ±5% (nominal) |
| Frequency Range | 4.5 Hz to 5 kHz |
| Power Supply | +23 to +36 V DC (constant current source) |
| Output Signal | Single-ended voltage |
| Mounting Type | Stud mount (1/4-28 UNF thread) |
| Housing Material | Stainless steel |
| Connector Type | 2-pin MIL-C-5015 compatible |
| Temperature Range | –54 °C to +121 °C |
| Shock Limit | 5000 g peak |
| Sealing | Hermetically sealed (IP65 equivalent) |
| Typical Dimensions | 90 mm × 35 mm × 120 mm |
| Weight | 0.30 kg |
Applications / Use Scenarios
-
Turbomachinery casing vibration monitoring (compressors, turbines, pumps).
-
Integration with Bently Nevada 3500/42M or 1900/65A vibration monitoring modules.
-
Condition-based maintenance programs in refineries and power plants.
-
Retrofit applications replacing older velocity transducers.
-
Monitoring machine foundation vibration in high-power rotating equipment.
Advantages / Key Engineering Features
-
High Reliability: Proven piezoelectric design ensures long operational life.
-
Excellent Frequency Response: Captures both low- and high-frequency vibrations accurately.
-
Hermetically Sealed Construction: Prevents ingress of oil, moisture, and dust.
-
No Moving Parts: Ensures long-term calibration stability with minimal maintenance.
-
Shock & Temperature Resistant: Performs consistently in demanding environments.
-
Plug-and-Play Integration: Fully compatible with Bently Nevada monitoring systems.
FAQs
-
What is the measurement output type?
– Voltage output proportional to vibration velocity.
-
Does it require external signal conditioning?
– No, it outputs directly to vibration monitors.
-
What sensitivity does it offer?
– 100 mV/in/s ±5%.
-
Is it compatible with 3500 systems?
– Yes, compatible with 3500/42M and 3500/93 modules.
-
Can it be used in outdoor or oily environments?
– Yes, due to its hermetically sealed stainless-steel housing.
-
What frequency range is typical?
– 4.5 Hz – 5 kHz.
-
What mounting is recommended?
– Stud mounting using 1/4-28 UNF thread.
-
How often should calibration be checked?
– Every 2–3 years under normal conditions.
-
What is the operating voltage range?
– +23 V DC to +36 V DC.
-
Can it withstand mechanical shock?
– Yes, up to 5000 g peak.
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Bently Nevada 21502-04 Velomitor Piezo-Velocity Sensor
Manufacturer:Bently Nevada
Product Number:21502-04
Product Type:Velomitor Piezo-Velocity Sensor
Origin:USA
Dimensions:90 mm × 35 mm × 120 mm
Weight:0.30 kg
Views:151
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 21502-04 Velomitor Piezo-Velocity Sensor is a self-generating, industrial-grade vibration sensor that produces a voltage signal proportional to vibration velocity. Designed for long-term monitoring of casing or housing vibration, it is a key component in machinery protection systems used in power generation, oil & gas, and petrochemical industries.
This model combines the ruggedness of a piezoelectric velocity transducer with the precision required for predictive maintenance. Its stainless-steel enclosure, wide operating temperature range, and factory calibration ensure dependable performance even in harsh field conditions.
Technical Specifications
| Parameter | Description |
|---|---|
| Model Number | 21502-04 |
| Module Type | Velomitor Piezo-Velocity Sensor |
| Measurement Type | Vibration Velocity (mm/s or in/s) |
| Sensitivity | 100 mV/in/s ±5% (nominal) |
| Frequency Range | 4.5 Hz to 5 kHz |
| Power Supply | +23 to +36 V DC (constant current source) |
| Output Signal | Single-ended voltage |
| Mounting Type | Stud mount (1/4-28 UNF thread) |
| Housing Material | Stainless steel |
| Connector Type | 2-pin MIL-C-5015 compatible |
| Temperature Range | –54 °C to +121 °C |
| Shock Limit | 5000 g peak |
| Sealing | Hermetically sealed (IP65 equivalent) |
| Typical Dimensions | 90 mm × 35 mm × 120 mm |
| Weight | 0.30 kg |
Applications / Use Scenarios
-
Turbomachinery casing vibration monitoring (compressors, turbines, pumps).
-
Integration with Bently Nevada 3500/42M or 1900/65A vibration monitoring modules.
-
Condition-based maintenance programs in refineries and power plants.
-
Retrofit applications replacing older velocity transducers.
-
Monitoring machine foundation vibration in high-power rotating equipment.
Advantages / Key Engineering Features
-
High Reliability: Proven piezoelectric design ensures long operational life.
-
Excellent Frequency Response: Captures both low- and high-frequency vibrations accurately.
-
Hermetically Sealed Construction: Prevents ingress of oil, moisture, and dust.
-
No Moving Parts: Ensures long-term calibration stability with minimal maintenance.
-
Shock & Temperature Resistant: Performs consistently in demanding environments.
-
Plug-and-Play Integration: Fully compatible with Bently Nevada monitoring systems.
FAQs
-
What is the measurement output type?
– Voltage output proportional to vibration velocity.
-
Does it require external signal conditioning?
– No, it outputs directly to vibration monitors.
-
What sensitivity does it offer?
– 100 mV/in/s ±5%.
-
Is it compatible with 3500 systems?
– Yes, compatible with 3500/42M and 3500/93 modules.
-
Can it be used in outdoor or oily environments?
– Yes, due to its hermetically sealed stainless-steel housing.
-
What frequency range is typical?
– 4.5 Hz – 5 kHz.
-
What mounting is recommended?
– Stud mounting using 1/4-28 UNF thread.
-
How often should calibration be checked?
– Every 2–3 years under normal conditions.
-
What is the operating voltage range?
– +23 V DC to +36 V DC.
-
Can it withstand mechanical shock?
– Yes, up to 5000 g peak.
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