New Original Bently Nevada 3500/61-01-00 Temperature Monitor in Stock

The Bently Nevada 3500/61-01-00 is a 6-Channel Temperature Monitor for the 3500 Machinery Protection System. It accepts both Resistance Temperature Detector (RTD) and Thermocouple (TC) inputs, conditioning these signals and comparing them against user-programmable alarm setpoints.The complete configuration consists of the 133811-02 Temperature Monitor (main card) and the 133819-02 RTD/TC I/O Module with internal terminations.

  • Item No :

    3500/61-01-00
  • Order(MOQ) :

    1 Piece
  • Payment :

    EXW/CIF
  • Product Origin :

    USA
  • Shipping Port :

    Wuhan
  • Lead Time :

    3-5days
  • Weight :

    3kg
  • Product Details

     
     
    Specification Description
    Manufacturer Bently Nevada (Baker Hughes)
    Model 3500/61-01-00
    Main Card Part Number 133811-02
    I/O Module Part Number 133819-02 (RTD/TC Non-Isolated, Internal Terminations)
    Product Type 6-Channel Temperature Monitor
    Number of Channels 6 independent channels
    Supported Sensors RTD: Pt100, Pt1000, Ni120, Cu10; TC: E, J, K, T, N, R, S, B
    Input Impedance >10 MΩ per lead input
    RTD Current Source 925 ±15 µA @ 25°C per transducer
    Recorder Output +4 to +20 mA per channel (proportional to full-scale)
    Output Voltage Compliance 0 to +12 VDC across load; 0–600 Ω load resistance
    Resolution 0.3662 µA per bit
    Accuracy ±0.15% at room temperature; ±0.4% over temperature range
    Power Consumption 9 W typical (3500/61)
    Update Rate 1 second per channel
    Front Panel LEDs OK, TX/RX, Bypass
    Operating Temperature -30°C to +65°C (-22°F to +150°F)
    Storage Temperature -40°C to +85°C
    Main Card Dimensions 241.3 mm x 24.4 mm x 241.8 mm
    Main Card Weight Approx. 0.91 kg (2.0 lb)
    I/O Module Weight Approx. 0.20 kg (0.44 lb)
    Rack Space 1 full-height front slot + 1 full-height rear slot
    Safety Certification SIL 2 (IEC 61508), TÜV certified
    Compliance API 670
    Country of Origin USA

    Related Product Model Recommendations

     
     
    Model Description Typical Application
    3500/61-01-00 (this model) Temperature Monitor with internal terminations and recorder outputs (133811-02 + 133819-02) Applications requiring 4–20 mA signal retransmission to DCS
    3500/61-02-00 Temperature Monitor with external terminations (133827-02) Applications requiring external wiring access
    3500/61-03-00 Temperature Monitor with TC isolated I/O (133835-02) High-interference environments requiring 250 Vdc channel isolation
    3500/60-01-00 Temperature Monitor without recorder outputs (163179-01 + 133819-01) Applications not requiring analog signal retransmission
    133811-02 Temperature Monitor Main Card (with recorder outputs) Spare/replacement main card
    133819-02 RTD/TC Non-Isolated I/O Module with Internal Terminations Spare/replacement I/O module
    133827-02 RTD/TC Non-Isolated I/O Module with External Terminations Alternative I/O for external wiring

    FAQs

    Q1: What is the primary function of the 3500/61-01-00?

    It is a 6-channel Temperature Monitor that accepts RTD and thermocouple inputs, conditions the signals, and compares them against user-programmable alarm setpoints. Its distinguishing feature is the recorder output on each channel, which provides a +4 to +20 mA analog signal proportional to the temperature reading for transmission to DCS, SCADA, or chart recorders .

    Q2: What is the difference between the 3500/61 and the 3500/60?

    The 3500/61 and 3500/60 provide identical temperature monitoring functionality except that the 3500/61 provides recorder outputs for each of its six channels, while the 3500/60 does not provide recorder outputs . The 3500/61 consumes 9 W nominal power, while the 3500/60 consumes 7 W .

    Q3: What is the difference between 133811-02 and 133819-02?

    The 133811-02 is the Temperature Monitor main card (front panel) that processes temperature signals, generates alarms, and provides recorder outputs. The 133819-02 is the RTD/TC Non-Isolated I/O Module (rear module) that provides the physical terminal connections for field wiring. Both are required together to form a complete 3500/61-01-00 monitoring channel .

    Q4: Can the 3500/61-01-00 accept both RTD and TC inputs simultaneously?

    Yes. The RTD/TC non-isolated version (Option -01) can be configured to accept either TC or RTD inputs, or a mixture of TC and RTD inputs on the same module . The TC isolated version (Option -03) provides 250 Vdc of channel-to-channel isolation to protect against external interference .

    Q5: What are the typical applications for the 3500/61?

    It is widely used for monitoring radial bearing metal temperature, thrust bearing temperature, motor stator winding temperature, and process fluid temperature on critical rotating machinery such as steam turbines, gas turbines, large compressors, and pump sets in power plants, petrochemical facilities, and other industrial applications.

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