Product Name:RTD/Isolated Tip TC External Termination Block
Brand Name: Bently Nevada
Model Number:172115-01
Country of Origin:USA
Warranty: 12 Months
Whatsapp：+86 18159889985
Email：[email protected]
Brand Name: |
Bently Nevada |
Model Number: |
172115-01 |
Country of Origin: |
USA |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
Delivery time in stock |
Payment Terms: |
T/T |
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Sales Manager: |
Stella |
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Send an email: |
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Contact in Whatsapp: |
The Bently Nevada 172115-01 is an RTD/Isolated Tip Thermocouple External Termination Block that serves as the field wiring interface for the 3500/65 16‑channel Temperature Monitor. Designed as part of the 3500 Series Machinery Protection System, the 172115-01 connects up to 16 temperature sensors (RTD or isolated tip TC) to the monitoring rack using robust Euro‑style connectors. It eliminates the need for direct sensor termination on the I/O module and simplifies both installation and maintenance in industrial monitoring applications.
Power generation: Steam turbine bearing temperatures, generator stator winding, exhaust gas temperatures
Oil & gas: Compressor discharge temperatures, gas turbine blade path monitoring
Petrochemical processing: Reactor and distillation column temperature control
Manufacturing: Motor winding temperatures (steel mills, paper mills, cement plants)
Marine & offshore: Propulsion system bearing temperature monitoring
Mining: Heavy‑duty pump and fan bearing temperature surveillance
Renewable energy: Large wind turbine drivetrain thermocouple connections
Passive external termination block – No active electronics; receives power exclusively through the 3500 rack
Dual sensor compatibility – Accepts both 3‑wire/4‑wire Resistance Temperature Detectors (RTDs) and isolated tip thermocouples (Type J, K, T, E)
16 high‑density channels – 16 sensor terminations in a single module
Euro‑style connectors – Standardized industrial connector interface for field wiring
Extreme wide‑temperature operation – -40 °C to +85 °C rating for harsh environments
Built‑in cold junction compensation – Thermocouple reference junction compensation integrated into the termination block design
Reverse polarity, overvoltage, and short‑circuit protection – Enhanced field wiring fault tolerance
No sensor replacement required – Fully backward‑compatible with existing RTD/TC sensors when upgrading from older 3500 I/O versions
TMR‑ready – Essential building block for Triple Modular Redundant temperature monitoring configurations
Hot‑swappable – 3500 series field termination blocks support online removal/replacement without rack power‑down
Sensor to monitor interface – Routes up to 16 individual temperature sensor connections from field junction boxes to the 3500/65 temperature monitor
Signal pass‑through – Passes raw RTD resistance signals and thermocouple mV signals to the 3500/65 I/O module without signal attenuation
Cold junction compensation – Provides automatic reference junction temperature measurement for thermocouple channels to ensure accurate temperature conversion
Field wiring organization – Consolidates all sensor terminations at a single point, eliminating direct point‑to‑point cabling to the rear I/O module
Noise immunity – Maintains high input impedance (>1 MΩ) per channel to preserve low‑level signal integrity
Simplified troubleshooting – External connector access allows quick sensor loop checking, isolation, and diagnosis without rack access
Cable strain relief – Secures sensor cables at a remote location (cabinet wall), reducing strain on the I/O module rear connectors
Adaptation for long cable runs – Supports cable lengths up to 100 meters (328 ft) via 3500 Transducer‑to‑ET Block cables (P/N 134544‑AAAA‑BB)
Q1: Which Bently Nevada monitor is the 172115-01 compatible with?
A1: The 172115-01 is specifically designed as the external termination block for the 3500/65 16‑Channel Temperature Monitor (P/N 145988‑02) and works only with 3500/65 configurations that use external terminations (ordering option 3500/65‑02‑BB).
Q2: What is the primary purpose of the 172115-01 termination block?
A2: Its primary purpose is to accept field wiring from up to 16 RTD or isolated tip thermocouple sensors, providing a secure, single connection point between field devices and the 3500/65 monitor.
Q3: Do I need to purchase any additional cable for the 172115-01?
A3: Yes. When ordering the external termination option, you must also order the 3500 Transducer (XDCR) Signal to External Termination (ET) Block Cable (P/N 134544‑AAAA‑BB) separately in the required length.
Q4: Can the 172115-01 be used in Triple Modular Redundant (TMR) configurations?
A4: Yes. In TMR configurations, three 3500/65 temperature monitors must be installed in three adjacent slots. The 172115-01 termination block is essential for this setup, enabling the monitor to use dual voting logic to maintain accurate operation.
Q5: What is the firmware upgrade procedure when replacing an older 172115-01 revision?
A5: When replacing an older revision of 172115-01 (such as Rev E or later), you must first remove the existing I/O module, upgrade the 3500/65 monitor firmware to the latest released version, and then install the new 172115-01. Failure to follow this order will result in an “I/O Module Mismatch” error.
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