Description
On a routine safety audit at a hydrocarbon processing facility in Texas, our team identified drifting calibration readings on a series of legacy ambient monitors. Swapping those units out for the Bently Nevada 350800-01-180 resolved the signal stability issues immediately. This specialized industrial field sensor interfaces directly with the 3500/63 Hazardous Gas Detection Module to monitor combustible gas levels in volatile environments.
Are you looking to replace an active monitoring point or replenish emergency engineering spares? Field data proves that this sensor sustains its electrical zero even under cyclic thermal stress.
Global Logistics, Availability, and Warranty Terms
Procuring high-consequence safety instrumentation demands clear supply chain metrics to maintain compliance and prevent plant down-time.
- Product Condition: New Original (New Surplus) or Factory Sealed options available.
- Stock Availability: Maintained in regional distribution centers for global dispatch.
- Standard Lead Time: Dispatches from our facility within 1 to 2 business days via express international air courier.
- Warranty Coverage: Supported by a 12-month replacement warranty starting from the date of shipment.
- International Pricing Note: The valuation displayed is a market reference point. Final billing varies according to local component availability and regional volume agreements. Request an official pro forma invoice from our trade desk for locked pricing.
Technical Specifications: Bently Nevada 350800-01-180
The underlying sensing hardware utilizes a classic pair of matched catalytic and reference beads configured to register changes in electrical resistance. Review the specific breakdown of this product code before committing to a installation layout.
| Parameter | Value / Specification |
|---|---|
| Model Type | 350800-01 (Hazardous Gas Sensor Element) |
| Lead Length Option | -180 (180-inch integrated lead wire / approx. 4.5 meters) |
| Housing Assignment | -00 (Standard bare sensor configuration without external junction box) |
| Sensing Technology | Catalytic Bead / Reference Pair (Wheatstone Bridge circuit) |
| Nominal Sensitivity | 15 mV per % LEL (Lower Explosive Limit) |
| Measurement Range | 0 to 100% LEL |
| Operating Temperature | −40 to +70°C |
| Enclosure Protection | Flameproof construction, IP66 rated |
| Signal Transmission | Direct voltage imbalance to 3500/63 monitor card |
Field Implementation and Operational Architecture
The core of the 350800-01-180 relies on a specialized combustion balance. Electrical current fed from the rack module heats both beads to a precise target temperature. When combustible gas leaks past the sintered flame arrestor, it oxidizes exclusively on the active catalytic bead (labeled Rreac in the system schematics). This reaction creates an unbalance across the internal Wheatstone bridge proportional to the gas concentration.
Well, technically the manufacturer has introduced newer consolidated lead-length variants like the 350800-01-006-00 for compact junction boxes, but maintaining the -180 variant remains essential if your sensor position sits deep within a turbine acoustic enclosure. In our field deployments, we prefer pairing this long-lead variant with the pneumatic 350810 Remote Hazardous Gas Calibrator. This setup allows technicians to run functional gas checks without donning full breathing apparatus to access tight, dangerous structural corners.
Cross-Border Shipping and Customs Compliance
Moving flameproof safety sensors across international jurisdictions requires careful compliance auditing to avoid localized border holding delays.
Export Classification Data
This electronic equipment falls under global export restrictions due to its role in industrial infrastructure safety. The item carries an Export Control Classification Number (ECCN) of 5A991 and is tracked internationally under the Harmonized System Tariff Code HS 853710. Every export invoice goes through an automated denied-party screening match prior to carrier verification.
Logistics and Incoterms Logistics
For plant turnarounds and forced outages, we utilize Priority Air Express (via DHL, FedEx, or UPS), yielding a standard transit window of 3 to 5 business days to locations across the Asia-Pacific, Europe, and North America. Delivery defaults to CIP (Carriage and Insurance Paid to Destination) per Incoterms 2020 definitions.
Customs Clearance Directive: All local import tariffs, country-specific VAT, and customs entry brokerage fees fall under the buyer’s financial remit. Coordinate with your local customs broker ahead of freight arrival to ensure your regional regulatory declarations match the commercial packing lists exactly.
Frequently Asked Questions
Can this sensor connect directly to a standard 4-20 mA analog PLC input card?
No, it cannot operate as a standalone transmitter. This raw sensor element does not output a formatted 4-20 mA loop on its own; it must terminate directly at the bridge-amplifier conditioning circuitry inside a Bently Nevada 3500/63 monitor module.
How do environmental contaminants impact the long-term sensitivity of the beads?
Sulfur compounds, halogenated hydrocarbons, and silicone vapors can poison the catalyst coating on the active bead. If your facility runs ambient processes with these chemical footprints, bump your bump-test frequency up to a bi-weekly cycle to monitor for span attenuation.
What is the exact difference between the 350800-01-180 and the -180-00 part numbers?
They designate the exact same component. The trailing “-00” explicitly specifies the omission of an optional auxiliary conduit housing during the factory compilation, indicating you are receiving the bare sensor head with the standard 180-inch pigtail lead wire.
What specific combustible gas hazards or target compounds are you looking to monitor within this zone?
| BENTLY 3500/20 125744-02 |
| Bently Nevada 3500/15 133292-01 |
| Bently Nevada 3500/15 127610-01 |
