BENTLY NEVADA 3500/22M 288055-01 RTD/Isolated Tip TC I/O Module – 3500 Series Machinery Protection System
When a temperature monitoring channel fails on a rotating machinery protection rack, the consequences are not merely an alarm gap — they are a blind spot in your plant’s last line of defense. Turbines continue to spin, compressors continue to load, and the thermal runaway that precedes a catastrophic bearing failure goes undetected until the damage is irreversible. Downtime measured in hours becomes downtime measured in weeks, and the cost of an unplanned outage in a petrochemical or power generation facility routinely exceeds the value of an entire protection rack by orders of magnitude.
The BENTLY NEVADA 3500/22M 288055-01 is the RTD and Isolated Tip Thermocouple I/O module purpose-built for the 3500 Series Machinery Protection System — the platform that has set the benchmark for continuous machinery monitoring in critical rotating equipment applications for decades. Within the 3500 rack architecture, the 3500/22M occupies the temperature measurement role with galvanically isolated inputs that prevent ground loops from corrupting readings in electrically noisy industrial environments. It is specified by OEMs and EPCs on gas turbines, steam turbines, centrifugal compressors, and large motor-driven trains where API 670 compliance is a contractual requirement, not an option.
Technical Specifications
Electrical
- Input Types: RTD (Pt100, Pt200, Pt500, Ni120) and Isolated Tip Thermocouple (J, K, T, E, R, S, B types)
- Input Channels: 4 channels per module
- Input Isolation: Galvanic isolation between each channel and chassis ground
- Measurement Range (RTD): -200°C to +850°C (Pt100)
- Measurement Range (TC): -270°C to +1820°C (type dependent)
- Accuracy: ±1°C typical (RTD mode, Pt100)
- Power Supply: Derived from 3500 rack backplane (no external supply required)
- Output: Digital via rack backplane to 3500/20 Rack Interface Module
Mechanical
- Form Factor: Single-slot 3500 Series rack module
- Part Number: 288055-01
- Model Number: 3500/22M
- Weight: 820 g (approximate, module only)
- Connector: Rear I/O terminal block via 3500 rack backplane
Environmental
- Operating Temperature: 0°C to +65°C
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 5% to 95% non-condensing
- Vibration: Designed for installation in control room panels adjacent to machinery
Certifications & Standards
- API 670 5th Edition compliant (Machinery Protection Systems)
- CE Marked
- RoHS compliant
- Note: Verify current certification status against your project’s applicable revision of API 670 and local regulatory requirements.
Key Features & Benefits
- Galvanic channel isolation — Eliminates ground loop interference in multi-point temperature measurement on large turbine trains where sensor cable runs exceed 50 meters, preserving measurement integrity without additional signal conditioners.
- Dual-sensor type support (RTD + Isolated Tip TC) — A single module accommodates both resistance temperature detectors and thermocouples, reducing spare parts inventory and simplifying rack configuration for mixed-sensor installations.
- API 670 5th Edition compliance — Meets the mandatory standard for machinery protection systems in oil & gas, petrochemical, and power generation facilities, satisfying insurance underwriter and EPC contractor requirements without additional engineering justification.
- Seamless 3500 rack integration — Communicates natively over the 3500 backplane to the Rack Interface Module, enabling Bently Nevada System 1 software to display, trend, and alarm temperature data alongside vibration and position channels in a unified operator view.
- High-accuracy RTD measurement (±1°C typical) — Provides the resolution required to detect early-stage thermal anomalies in bearing housings and stator windings before they progress to trip-level events, supporting condition-based maintenance programs.
- Hot-swap capable within 3500 architecture — Module replacement can be performed during planned maintenance windows consistent with 3500 rack procedures, minimizing exposure time for the protection function.
Industry & Equipment Applications
- Oil & Gas — Upstream: Gas turbine-driven compressor trains on offshore platforms and onshore gas processing facilities; bearing temperature monitoring on high-speed centrifugal compressors handling wet gas streams.
- Oil & Gas — Downstream / Petrochemical: Steam turbine drivers on critical process pumps and compressors in refineries; stator winding temperature monitoring on large induction motors driving reactor charge pumps.
- Power Generation: Combined-cycle gas turbine (CCGT) plants; steam turbine generator sets; monitoring of thrust bearing and journal bearing temperatures on units operating under variable load profiles.
- LNG & Gas Transmission: Pipeline compressor stations with multi-stage centrifugal compressors; LNG liquefaction trains where continuous temperature surveillance is required under API 670 contractual obligations.
- Pulp & Paper / Industrial: Large induced draft and forced draft fans; high-speed gearbox temperature monitoring on paper machine drives where unplanned downtime carries significant production loss penalties.
- Marine & Offshore: Propulsion turbine and auxiliary machinery protection on LNG carriers and FPSOs; integration into vessel automation systems requiring IEC 61508 functional safety documentation.
System Integration & Compatible Parts
Upstream (rack infrastructure):
- 3500/05 Rack Interface Module — rack power and communication backbone
- 3500/20 Rack Interface Module — system communication to DCS/SCADA via Modbus, Ethernet, or Profibus
- 3500/15 Power Supply Module — redundant DC power for the rack
Downstream (field sensors):
- Pt100 RTD sensors (2-wire, 3-wire, 4-wire) — standard bearing temperature probes
- Type K and Type J thermocouples with isolated tips — for high-temperature exhaust and casing measurements
Equivalent / Replacement Considerations:
- 288055-01 is the specific option card part number for the 3500/22M base module; confirm both the module number and option number match your rack slot configuration before ordering.
- Earlier 3500/22 variants may differ in supported sensor types and firmware compatibility — verify against your System 1 software version and rack firmware revision before substitution.
- No direct cross-brand substitution is supported within an existing 3500 rack; the module is proprietary to the Bently Nevada 3500 architecture.
Our Quality Assurance Process
Every BENTLY NEVADA 3500/22M 288055-01 sourced through Konmask.com passes a structured verification process before shipment:
- Physical Inspection: Visual examination of PCB, connectors, front panel labeling, and firmware revision label against known-good reference units. Boards with evidence of rework, corrosion, or connector damage are rejected.
- Functional Verification: Where test equipment is available, modules are bench-tested for power-up behavior and communication response on a 3500 rack test fixture.
- Documentation Review: Serial number, date code, and hardware revision are recorded and cross-referenced against procurement records.
- Packaging & ESD Protection: Modules are packed in anti-static bags with foam cushioning inside double-wall cartons, with desiccant included for long-haul shipments.
Available documentation upon request: Test report, photos of actual unit (serial number visible), certificate of conformance, packing list, commercial invoice for customs.
How to Order
- Submit your inquiry — Use the contact form on this page or email support@konmask.com with your required quantity, delivery timeline, and destination port. Include your project name if applicable.
- Receive quotation — Our technical team will confirm availability, lead time, and pricing within 24 hours on business days. We will also confirm the exact hardware revision and firmware label of units in stock.
- Confirm & ship — Upon order confirmation and payment arrangement, we prepare export documentation (commercial invoice, packing list, and any required certificates) and arrange shipment via your preferred freight forwarder or our recommended carrier.
Why Choose Konmask.com?
- Specialist focus on industrial automation hardware — We stock and source PLC modules, DCS cards, and machinery protection components as our core business, not as a sideline to general electronics trading.
- Transparent unit identification — We provide serial number photos and hardware revision details before you commit to an order, so you know exactly what you are receiving.
- Export documentation expertise — We prepare complete commercial invoice, packing list, and certificate of conformance packages that satisfy customs requirements in the EU, Middle East, Southeast Asia, and the Americas.
- Responsive technical communication — Inquiries are handled by staff with industrial automation backgrounds, not general sales agents. We can discuss rack configuration, firmware compatibility, and installation context.
- Established global shipping network — We ship to over 50 countries via DHL, FedEx, and freight forwarder partnerships, with full tracking and export compliance support.
Frequently Asked Questions
- Q: Is the BENTLY NEVADA 3500/22M 288055-01 compatible with all 3500 Series rack sizes?
- A: The 3500/22M is designed for the standard 3500 Series rack (3500/05 or 3500/20 based systems). It occupies a single module slot. Compatibility with your specific rack depends on the rack’s firmware revision and the System 1 software version in use. We recommend confirming your rack’s hardware revision before ordering a replacement module.
- Q: Can the 3500/22M 288055-01 accept both RTD and thermocouple inputs simultaneously on the same module?
- A: The 3500/22M supports RTD and Isolated Tip Thermocouple inputs, but the input type configuration is set per channel via software. Whether mixed sensor types can be active simultaneously on a single module depends on the firmware version and rack configuration. Consult your Bently Nevada System 1 configuration documentation or contact us for clarification based on your specific rack setup.
- Q: What is the lead time for the BENTLY NEVADA 3500/22M 288055-01 and do you offer expedited shipping for urgent plant shutdowns?
- A: Lead time depends on current stock availability. For units in stock, we can typically arrange shipment within 2–3 business days of order confirmation. For urgent plant shutdown or emergency replacement situations, contact us directly at support@konmask.com or +0086 19859288691 and we will prioritize your inquiry and advise on the fastest available shipping option to your location.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
{
“@context”: “https://schema.org/”,
“@graph”: [
{
“@type”: “Product”,
“name”: “BENTLY NEVADA 3500/22M 288055-01 RTD/Isolated Tip TC I/O Module”,
“description”: “BENTLY NEVADA 3500/22M 288055-01 RTD and Isolated Tip Thermocouple I/O Module for the 3500 Series Machinery Protection System. API 670 compliant, galvanically isolated inputs, 4-channel temperature monitoring for critical rotating equipment.”,
“sku”: “3500/22M 288055-01”,
“brand”: {
“@type”: “Brand”,
“name”: “BENTLY NEVADA”
},
“manufacturer”: {
“@type”: “Organization”,
“name”: “BENTLY NEVADA”
},
“model”: “3500/22M”,
“mpn”: “288055-01”,
“category”: “Industrial Automation / Machinery Protection / I/O Module”,
“url”: “https://konmask.com/products/bently-nevada-3500-22m-288055-01-rtd-isolated-tip-tc-io-module”,
“offers”: {
“@type”: “Offer”,
“url”: “https://konmask.com/products/bently-nevada-3500-22m-288055-01-rtd-isolated-tip-tc-io-module”,
“priceCurrency”: “USD”,
“availability”: “https://schema.org/InStock”,
“seller”: {
“@type”: “Organization”,
“name”: “Konmask.com”
}
}
},
{
“@type”: “FAQPage”,
“mainEntity”: [
{
“@type”: “Question”,
“name”: “Is the BENTLY NEVADA 3500/22M 288055-01 compatible with all 3500 Series rack sizes?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “The 3500/22M is designed for the standard 3500 Series rack (3500/05 or 3500/20 based systems). It occupies a single module slot. Compatibility with your specific rack depends on the rack firmware revision and System 1 software version. Confirm your rack hardware revision before ordering.”
}
},
{
“@type”: “Question”,
“name”: “Can the 3500/22M 288055-01 accept both RTD and thermocouple inputs simultaneously on the same module?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “The 3500/22M supports RTD and Isolated Tip Thermocouple inputs configured per channel via software. Whether mixed sensor types can be active simultaneously depends on firmware version and rack configuration. Consult your System 1 configuration documentation for details.”
}
},
{
“@type”: “Question”,
“name”: “What is the lead time for the BENTLY NEVADA 3500/22M 288055-01 and do you offer expedited shipping for urgent plant shutdowns?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “For units in stock, shipment is typically arranged within 2–3 business days of order confirmation. For urgent plant shutdown situations, contact support@konmask.com or +0086 19859288691 for priority handling and fastest available shipping options.”
}
}
]
}
]
}
