Bently Nevada 133819-01 RTD/TC Temperature I/O Module | 3500 Series

Bently Nevada 133819-01 – RTD/TC Temperature Input/Output Module | 3500 Series Condition Monitoring Platform

Engineering Background: The Bently Nevada 3500 Series is the industry benchmark for machinery protection and condition monitoring in rotating equipment applications — turbines, compressors, pumps, and generators across oil & gas, petrochemical, power generation, and water treatment sectors. Within the 3500 rack architecture, temperature monitoring modules serve as the thermal sensing backbone, converting RTD and thermocouple signals into actionable process data for the System 1 software environment. The 133819-01 occupies a dedicated I/O slot in the 3500 rack and delivers multi-channel temperature acquisition with direct integration to the rack’s backplane communication bus.

Product Positioning: The 133819-01 is specifically designed for applications requiring simultaneous RTD (Resistance Temperature Detector) and thermocouple (TC) signal acquisition within a single module slot — distinguishing it from single-input-type modules in the 3500 family. It is the preferred selection when bearing temperature, winding temperature, and exhaust gas temperature must be monitored within the same rack without consuming additional slots. Boundary conditions: this module is not a replacement for vibration or position I/O modules; it is strictly a thermal channel module and requires a compatible 3500 rack chassis and power supply for operation.

Complete Technical Specifications

Electrical

• Input Types: RTD (PT100, 3-wire) and Thermocouple (Type J, K, E, T — confirm with datasheet revision)
• Number of Channels: 4 channels per module (RTD/TC configurable per channel)
• Measurement Range (RTD): -200°C to +850°C (PT100)
• Measurement Range (TC): Dependent on thermocouple type; Type K: -200°C to +1372°C
• Accuracy: ±1°C typical (RTD); ±2°C typical (TC) — refer to Bently Nevada datasheet 133819-01 Rev. X
• Output: Digital via 3500 rack backplane; analog output not applicable
• Power Supply: Sourced from 3500 rack backplane (no external power required)
• Isolation: Channel-to-channel and channel-to-backplane isolation per IEC 61010-1

Mechanical

• Form Factor: Single-width 3500 Series I/O module card
• Mounting: DIN rail / 3500 rack slot (front-access wiring)
• Connector Type: Removable terminal block (field-wiring side)
• Weight: Approx. 400 g
• Dimensions: Per 3500 Series module standard (refer to 3500 Frame Installation Manual)

Environmental

• Operating Temperature: 0°C to +60°C
• Storage Temperature: -40°C to +85°C
• Relative Humidity: 5% to 95% non-condensing
• Vibration Resistance: Per IEC 60068-2-6
• EMC: Designed to operate in Class A industrial electromagnetic environments

Certifications

• CE Marking: Applicable per EU Machinery Directive
• UL/cUL Listed: Per applicable Bently Nevada product certification
• SIL Compatibility: Consult Bently Nevada SIL documentation for functional safety applications
• RoHS: Compliant

Data source: Bently Nevada 3500 Series product documentation, part number 133819-01. Specifications subject to revision — always verify against the current Bently Nevada datasheet prior to engineering sign-off.

Proven Application Environments

• Petrochemical / Steam Turbine Generator Sets: Monitoring bearing metal temperature and steam inlet temperature on turbine-driven generators; continuous operation at elevated ambient temperatures with high EMI from adjacent switchgear.
• Power Generation / Gas Turbine Compressor Trains: Exhaust gas temperature (EGT) monitoring via Type K thermocouples on multi-stage axial compressors; critical for combustion stability and hot-section life management.
• Water Treatment / High-Speed Centrifugal Pumps: Motor winding temperature surveillance on vertical turbine pumps in raw water intake stations; 24/7 unattended operation with SCADA integration via Modbus/OPC.
• Oil & Gas / Pipeline Booster Compressor Stations: RTD-based bearing temperature trending on reciprocating and centrifugal compressors; early warning of lubrication degradation before vibration thresholds are exceeded.
• Pulp & Paper / Dryer Section Drive Trains: Winding temperature monitoring on large AC induction motors driving dryer rolls; integration with DCS for load-shedding logic during thermal excursions.
• LNG / Cryogenic Pump Applications: Low-temperature RTD monitoring on submerged motor pumps; module’s wide RTD range accommodates cryogenic process conditions without external signal conditioning.

Engineering Advantages

• For multi-point thermal monitoring on a single rotating machine, this I/O module consolidates RTD and TC inputs into one rack slot, because the dual-input-type architecture eliminates the need for separate RTD-only and TC-only modules, reducing rack space consumption and wiring complexity.
• For applications requiring high measurement accuracy on PT100 sensors, this temperature module delivers ±1°C typical accuracy, because the 3-wire RTD compensation circuit actively cancels lead resistance errors introduced by long field cable runs.
• For installations in high-EMI environments adjacent to VFDs or large transformers, this module maintains signal integrity, because the channel-to-channel and channel-to-backplane isolation architecture prevents ground loop interference from corrupting temperature readings.
• For plants operating under IEC 61511 functional safety requirements, this module supports SIL-rated system configurations, because it is designed within the Bently Nevada 3500 platform which has documented SIL capability assessments available from the OEM.
• For maintenance teams performing hot-swap or scheduled module replacement, this module supports front-access removable terminal blocks, because field wiring remains connected to the terminal block during module extraction, eliminating re-termination risk and reducing MTTR.
• For engineering teams integrating temperature data into DCS or historian platforms, this module delivers data natively via the 3500 rack backplane to System 1 software, because the backplane communication protocol provides timestamped, engineering-unit-converted values without requiring external signal converters or transmitters.

System Architecture & Signal Flow

Signal Flow: Field sensor (RTD/TC) → removable terminal block → 133819-01 module input conditioning circuit → A/D conversion → 3500 rack backplane data bus → 3500/20 Communication Gateway or 3500/92 Communication Module → System 1 software / DCS / SCADA via Modbus TCP, OPC-DA, or 4–20 mA retransmission (depending on gateway configuration).

Compatible Rack & System Components:

• 3500/05 Rack (standard 19-inch, 14-slot) — primary host chassis
• 3500/15 Power Supply Module — required for rack power; redundant configuration recommended
• 3500/20 Rack Interface Module — mandatory for backplane communication
• 3500/92 Communication Module — for Ethernet/Modbus TCP integration to DCS
• System 1 Evolution Software — for configuration, trending, and alarm management

Substitution Conditions: The 133819-01 may be considered as a functional replacement for earlier Bently Nevada temperature I/O modules within the 3500 platform where firmware and rack revision compatibility is confirmed. Cross-compatibility with 3300 Series or 1900 Series racks is not supported. Any substitution must be validated against the current Bently Nevada compatibility matrix and approved by the site machinery protection engineer.

Sourcing & Quality Verification

Source: Units offered through Konmask.com are sourced from decommissioned plant inventory, authorized surplus channels, and verified industrial distributors. Each unit undergoes a structured pre-shipment inspection process.

4-Step Inspection Process:

1. Visual Inspection: Board-level examination for physical damage, corrosion, burnt components, and connector pin integrity. Units with evidence of field damage are rejected.
2. Label & Part Number Verification: Confirmation of Bently Nevada OEM label, part number 133819-01, and firmware/revision marking against procurement documentation.
3. Functional Bench Test: Where test equipment is available, module is powered within a compatible 3500 rack and channel response is verified against known RTD/TC reference inputs.
4. Packaging & ESD Protection: Modules are packaged in anti-static bags with foam cushioning and labeled with part number, serial number, and inspection date prior to shipment.

Documentation Available Upon Request:

• Inspection report with serial number
• Bently Nevada OEM datasheet (133819-01)
• Certificate of conformance (where applicable)
• Photos of actual unit prior to shipment

Procurement Process

1. Inquiry Submission: Submit part number, required quantity, and delivery timeline via the contact form or directly to support@konmask.com. Include rack revision and firmware version if known — this accelerates compatibility confirmation.
2. Quotation & Availability Confirmation: A technical response is provided within 24 hours covering unit availability, condition grade, lead time, and pricing. Expedited processing is available for shutdown or emergency maintenance scenarios.
3. Order Confirmation & Shipment: Upon purchase order receipt, units are inspected, documented, and dispatched with full tracking. Export documentation (commercial invoice, packing list, country of origin certificate) is provided for international shipments.

Technical Support: Pre-sale compatibility consultation, installation guidance referencing Bently Nevada documentation, and post-sale technical queries are handled by engineering-background staff. Support is available via email and phone during business hours (UTC+8).

Technical FAQ

Q: Is the 133819-01 compatible with both the 3500/05 and 3500/22M rack configurations?
A: The 133819-01 is designed for the standard 3500 Series rack platform. Compatibility with specific rack variants including the 3500/22M Transient Data Interface should be confirmed against the Bently Nevada 3500 Series compatibility guide (document GEI-100191 or equivalent current revision) before installation. Konmask technical staff can assist with this verification.

Q: Can the 133819-01 replace a 133819-02 or other suffix variants?
A: Suffix variants within the 133819 family may differ in channel count, input type configuration, or firmware revision. Direct substitution of -01 for -02 or other suffixes requires engineering review. The OEM compatibility matrix and the site’s machinery protection engineer approval are mandatory before any cross-suffix substitution is implemented in a live protection system.

Q: Is this module suitable for use in SIL 2 certified safety instrumented systems?
A: The 3500 Series platform has documented SIL capability; however, SIL suitability for a specific application depends on the complete safety loop design, proof test interval, and the specific SIL assessment report version applicable to the 133819-01. The relevant Bently Nevada SIL documentation (Safety Manual) must be reviewed by the site functional safety engineer prior to use in any SIL-rated application. Konmask can provide the OEM datasheet to support this review.

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