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133819-01
133819-01

Bently Nevada 133819-01 RTD/TC Non-Isolated I/O Module Internal Terminations

  • Model: 133819-01
  • Brand: Bently Nevada
  • Series: 3500 Monitoring System
  • Core Function: RTD/TC input interface
  • Product Type: Non-Isolated I/O Module
  • Key Specs: 6 channels, internal terminations, supports mixed RTD/TC
  • Condition: New Original / New Surplus
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Description

3. Key Technical Specifications

  • Channels: 6 (RTD or TC, mix supported on non-isolated)
  • Input Impedance: >10 MΩ per lead
  • Power Consumption: Part of 3500/60 (7 W) or 3500/61 (9 W) system
  • Terminations: Internal
  • Isolation: Non-isolated (channel-to-channel)
  • Temperature Ranges: Wide support for Pt100 RTD, Type K/J/E/T TC
  • Accuracy: ±1°C to ±3°C typical depending on sensor and termination
  • Operating Temperature: -30°C to +65°C
  • Storage Temperature: -40°C to +85°C
  • Humidity: 95% non-condensing
  • Dimensions: 241.3 mm x 24.4 mm x 99.1 mm
  • Weight: 0.20 kg (0.44 lbs)

4. Product Introduction

The Bently Nevada 133819-01 is the RTD/TC Non-Isolated I/O Module with internal terminations for the 3500/60 and 3500/61 Temperature Monitors. It accepts up to 6 RTD or thermocouple inputs and supports mixed configurations on a single module.

It provides direct field wiring termination for bearing metal temperatures, process fluids, and other critical measurements in machinery protection systems. Pair it with the appropriate temperature monitor main module.

133819-01
133819-01

5. Troubleshooting Quick Reference

Symptom Possible Cause Relevance to this Part Quick Check Method Recommendation
No readings on channels Open sensor or wiring ✅ High Measure resistance (RTD) or mV (TC) at terminals Check field connections and sensors
Erroneous temperatures Cold junction error (TC) ✅ High Verify ambient compensation Confirm TC type and wiring polarity
Not OK status Lead wire break ✅ High Test continuity per channel Repair or replace sensor cable
Inaccurate values Configuration mismatch ✅ Medium Compare software settings to installed sensors Reload correct channel type
Noise in readings Ground loops ✅ Medium Inspect shielding Implement single-point ground
Module overheating High ambient or fault ❌ Low Check rack ventilation Reduce temperature or inspect

Provide sensor types, measured gaps/resistances, and logs for support.

6. Frequently Asked Questions (FAQ)

What sensors does the 133819-01 support? RTD (100Ω Pt, etc.) and thermocouples (Types E, J, K, T). Non-isolated version allows mixing on one module.

Can I hot-swap this I/O module? No. Follow proper procedures to avoid alarms or loss of monitoring on temperature channels.

What condition is this unit? New Original / New Surplus. Inspected and tested for continuity and basic functionality.

How do I configure mixed RTD/TC inputs? Set each channel individually in 3500 Rack Configuration Software. Document existing sensor types before replacement.

Difference from isolated versions? This is non-isolated for standard applications. Isolated TC versions (different part numbers) provide 250 Vdc channel-to-channel isolation where needed.

Wiring best practices? Use appropriate compensation cable for TCs and 3/4-wire for RTDs. Maintain polarity and good shielding to minimize noise.

Common replacement issues? Mismatched sensor type in config causes scaling errors. Verify all terminations are tight and match the original setup. Test each channel after installation.

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