330750-60-05 Bently Nevada High Temperature Velomitor System
Manufacturer: Bently Nevada
Product No.: 330750-60-05
Condition： In stock
Product Type: Velomitor Sensor
Product Origin: USA
Payment: T/T, Western Union
Weight: 953g
Shipping port: Xiamen
Warranty: 12 months
Estimate delivery times: 12-26 days (International), 3-6 days (United States).
Return within 30 days of purchase. Duties & taxes are non-refundable.
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Product Overview
The 330750-60-05 is a piezoelectric velocity transducer system engineered by Bently Nevada for extreme thermal environments. Designed for continuous surface mounting up to +400°C (+752°F), the 330750-60-05 segregates the sensing head from the signal conditioning electronics via an integral 6-meter hardline cable. This permanent construction eliminates fragile connector interfaces in hot zones, routing raw signals safely to a cooler location for accurate processing across High Temperature Velomitor System industrial monitoring applications.
Configuration Breakdown & Part Number Tree
Part Number Structure: 330750-AA-BB
-
330750 — Bently Nevada High Temperature Velomitor System (HTVS) Base Model
- -AA [Hardline Cable Length Option]: 60 — 6.0 meters (19.7 feet) integral hardline cable
- -BB [Agency Approval Option]: 05 — Multiple Hazardous Area Approvals (CSA, ATEX, and IECEx certified)
Technical Specifications (MECE Framework)
1. Basic Identification
- Manufacturer: Bently Nevada (Made in USA)
- Model / Part Number: 330750-60-05
- Product Series: High Temperature Velomitor System (HTVS)
- Transducer Type: Segregated Piezoelectric Velocity Sensor System
2. Electrical & Performance Characteristics
| Parameter | Technical Value Standard |
|---|---|
| Calibrated Sensitivity | 5.7 mV/mm/s (145 mV/in/s) ±5% at reference calibration frequencies |
| Primary Frequency Response | 15 to 2000 Hz (900 to 120,000 cpm) ±3.0 dB |
| Narrow-Band Frequency Response | 20 to 1000 Hz (1,200 to 60,000 cpm) ±0.9 dB |
| Amplitude Linearity | ±2% up to 152 mm/s (6 in/s) peak |
| Maximum Amplitude Limit | 635 mm/s (25 in/s) peak <680 Hz; 2940 m/s² (300 g) peak >680 Hz |
| Transverse Sensitivity | Less than 5% of primary axis sensitivity |
| Mounted Resonant Frequency | Greater than 5 kHz |
| Output Bias Voltage | -12 VDC ± 2.0 VDC nominal system operating voltage |
| Broadband Noise Floor | 0.127 mm/s (0.005 in/s) rms nominal (15 Hz to 2 kHz) |
| Transient Temperature Drift | 0.0762 mm/s/°C (0.003 in/s/°C) per ISO 5347-18:1993(E) |
| Maximum Signal Transmission Distance | 305 meters (1000 feet) field wiring length to monitor without degradation |
3. Physical & Structural Specifications
- Sensing Head & Housing: 300-series stainless steel hermetic enclosure.
- Integral Cable Construction: Stainless steel hardline mineral-insulated cable, minimum bend radius 51 mm (2.0 in).
- Output Connector: 2-pin Mil-C-5015 hermetically sealed receptacle with 304 stainless steel shell.
- Polarity Convention: Pin A goes positive relative to Pin B when velocity vector acts from base to top of sensor.
- Total Unit Weight: 953 grams (2.10 lb) typical complete assembly weight.
- System Electrical Isolation: Sensor case electrically isolated from internal measurement loop.
4. Environmental Robustness & Hazardous Area Compliance
- Sensing Head & Cable Temperature: -55°C to +400°C (-67°F to +752°F) continuous surface limit.
- Signal Electronics Temperature: -55°C to +121°C (-67°F to +250°F) operating location limit.
- Hazardous Temperature Classes: T4 (-40°C to +100°C) and T1 (-40°C to +400°C) dependent on installation zone.
- Shock Limit: 24,535 m/s² (2,500 g) peak maximum survivability rating.
- Relative Humidity: 100% non-submerged; fully hermetic laser-welded seal.
- Directives & Standards: EMC Directive 2014/30/EU, RoHS 2011/65/EU, ATEX Directive 2014/34/EU (EN 60079 series).
Advanced Diagnostic Capabilities
The 330750-60-05 incorporates continuous circuit monitoring features when integrated into Bently Nevada 3500 or 1900-series machinery protection systems. Diagnostic logic constantly evaluates the -12 VDC bias output voltage. If thermal stress fractures the internal ceramic element, or if hardline cable damage occurs during operation, the bias voltage strays outside the nominal -10 VDC to -14 VDC window. The monitor immediately flags a Not OK fault condition, preventing false alarms and ensuring reliable machine trip logic.
Target Equipment & Application Scenarios
- Gas turbine casing vibration monitoring in extreme thermal zones.
- Steam turbine valve body and main stop valve dynamic response measurement.
- Petrochemical hot gas expanders and catalytic cracker blower housings.
- High-temperature exhaust fans and thermal power plant induced-draft blowers.
Installation & Handling Guidelines
Ensure the mounting surface on the target machine is flat and clean to maintain accurate high-frequency transmission up to 5 kHz. Torque the sensor base firmly according to Bently Nevada mounting specifications. Route the 6-meter integral hardline cable carefully, maintaining a strict minimum bend radius of 51 mm (2.0 in) to prevent internal insulation failure. Mount the signal conditioning housing block in a cooler location where ambient temperatures remain strictly below +121°C (+250°F).
Packaging, Logistics & Warranty Terms
- Scope of Delivery: 1x Factory Sealed Bently Nevada 330750-60-05 Sensing Head with 6m Hardline Cable & Electronics, 1x Quick Reference Guide.
- Warranty Coverage: Complete 12-Month Guarantee covering functional and material defects.
- Dispatch Processing: Fast order handling and shipment within 24 to 48 hours.
- Global Express Courier: Direct express delivery globally via FedEx, UPS, or DHL.
Global PLC Spare HUB's Insight & Field Experience
During a commissioning audit on a gas turbine exhaust casing, an industrial plant experienced recurring sensor dropouts on standard velocity probes due to ambient heat surpassing +250°C. Upgrading the installation to the 330750-60-05 resolved the breakdown issue entirely. The 6-meter hardline cable allowed our technicians to pass through the hot acoustic enclosure wall and mount the conditioning electronics in an external, lower-temperature junction box. Field Tip: Always secure the hardline cable with stainless steel conduit clamps every 0.5 meters to prevent high-amplitude machine vibration from flexing the cable near its housing joint.
Selection & Buyer's Guide
When specifying the 330750-60-05 system, confirm that your target machine operating surface temperature does not exceed +400°C. Verify that a 6-meter cable length (Option 60) is sufficient to reach a cooler zone where ambient temperatures stay under +121°C for the signal electronics. The Option 05 designation ensures full compliance for plants requiring hazardous area certifications across ATEX, IECEx, and CSA standards simultaneously.
Frequently Asked Questions (FAQ)
Q1: What is the main structural advantage of the 330750-60-05 compared to standard Velomitor sensors?
A: The system segregates the high-temperature sensing head from its signal processing electronics using a laser-welded hardline cable, allowing operation on +400°C surfaces without baking internal semiconductors.
Q2: Can the 6-meter hardline cable on the 330750-60-05 be disconnected from the sensor head?
A: No. The sensing head and hardline cable are permanently integrated and hermetically sealed to eliminate connector failure points in extreme heat zones.
Q3: What happens if the hardline cable bends tighter than the specified 51 mm minimum bend radius?
A: Sharp bends can fracture the internal mineral insulation or crack the outer 300-series stainless steel sheath, causing permanent signal ground shorts or open circuits.
Q4: How do I test the health of the 330750-60-05 sensor system using a DC multimeter?
A: Measure the output bias voltage between the signal and common lines with power applied; a normal operational unit will read steadily within -12 VDC ± 2.0 VDC.
Q5: What field cable type is recommended to connect the Mil-C-5015 receptacle to the rack monitor?
A: Use a high-quality 2-conductor shielded twisted-pair cable protected inside rigid metal conduit up to a maximum run distance of 305 meters (1000 feet).
Tags
Q: Are these parts 100% original and new?
A: Yes. Every component is guaranteed to be 100% original, brand-new, and factory-sealed. We also provide a 12-month comprehensive warranty for your peace of mind.
Q: How fast is the shipping to my country?
A: For in-stock items, we offer same-day dispatch. International express shipping (DHL/FedEx/UPS) typically delivers within 3–5 business days worldwide.
Q: Can I get a formal quotation with shipping costs?
A: Absolutely. Our sales team is ready to provide a detailed Proforma Invoice (PI) including the most competitive shipping rates for your location.
Q: Do you offer discounts for bulk orders?
A: We provide volume-based pricing for large projects or multiple-item orders. Please contact us to get our Best Price Guarantee.
12-Month Comprehensive Warranty
Every part supplied by Global PLC Spare Hub is covered by a 12-month warranty from the date of invoice.
- Coverage: Functional defects and hardware failures under normal operating conditions.
- Commitment: We provide immediate repair, replacement, or a full refund for any verified defective components to minimize your operational downtime.
Returns & Exchange Policy
We offer a 30-day return policy to ensure you receive the exact part your system requires.
- Eligibility: Returns are accepted for uninstalled items in their original, factory-sealed packaging.
- RMA Process: Please contact our support team to obtain a Return Merchandise Authorization (RMA) number before shipping.
- Fast Processing: Refunds or exchanges are processed within 3–5 business days after the returned item passes our technical inspection.
Need Technical Assistance?Not sure if this part is compatible with your system? [Consult our Engineers] before purchasing to ensure 100% compatibility.
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