Bently Nevada 3500/61-01-00 133811-02 Temperature Module

Technical Specifications

Parameter	Details
Product Type	Temperature Measurement Module
Compatibility	Bently Nevada 3500 Series Monitoring System
Number of Channels	6 channels (RTD / TC / DC voltage)
Input Types	2-wire or 3-wire RTD, thermocouple (J, K, T, E, R, S), ±10 V DC
Input Impedance	10 MΩ (voltage), 300 Ω (thermocouple), 100 nA (RTD)
Measurement Range	–200 °C to 850 °C (RTD), 0 mV to 100 mV (TC)
Resolution	16-bit (0.01 °C for RTD, 0.1 °C for TC)
Accuracy	±0.1 % of span + 0.05 °C
Scan Rate	10 samples per second per channel
Alarm Outputs	4 relay outputs (form C, user-configurable)
Communication Protocol	Modbus RTU, Modbus TCP/IP
Dimensions (H x W x D)	241 mm x 38 mm x 254 mm
Weight	1.2 kg
Power Supply	24 VDC nominal (18 VDC to 32 VDC)
Power Consumption	8 W typical
Operating Temperature	–20 °C to +65 °C
Storage Temperature	–40 °C to +85 °C
Protection Class	IP20
Certifications	CE, CSA, ATEX, ABS

High-Precision Measurement Capabilities

The 3500/61-01-00 133811-02 temperature module delivers six channels of high-accuracy thermal monitoring for critical turbomachinery applications. This unit accepts RTD, thermocouple, and DC voltage inputs, supporting a broad range of temperature sensors commonly found in power generation and oil and gas facilities. It achieves 0.01 °C resolution for RTD measurements and 0.1 °C for thermocouples, with an overall accuracy of ±0.1 % of span. Furthermore, the module scans each channel at 10 samples per second, capturing rapid temperature variations effectively.

Configurable Alarm and Protection

Each of the six channels on the 3500/61-01-00 133811-02 features independent alarm setpoints, allowing users to define danger, warning, and alert thresholds tailored to specific machine protection strategies. The module provides four relay outputs, each configurable as form C contacts for triggering external alarms or shutdown sequences. Additionally, the unit includes built-in sensor open-circuit detection, preventing false measurements from faulty wiring.

System Integration and Data Access

This temperature module communicates seamlessly with the 3500 rack via the proprietary backplane bus, ensuring synchronized data exchange with other monitoring modules. Users can retrieve real-time temperature data, alarm histories, and diagnostic information through Modbus RTU or TCP/IP connections. Moreover, the 3500/61-01-00 133811-02 supports Bently Nevada System 1 software, enabling advanced trending, predictive analytics, and automated reporting.

Physical and Environmental Durability

Weighing 1.2 kg with dimensions of 241 mm x 38 mm x 254 mm, the 3500/61-01-00 133811-02 occupies a single half-height slot in the 3500 series rack. This module operates reliably across a wide temperature range from –20 °C to +65 °C and draws 8 W from a nominal 24 VDC supply. Its IP20-rated enclosure and rugged construction ensure dependable performance in harsh industrial environments, including offshore and hazardous area installations.