3500/61-05-00 Bently Nevada Recorder Output Monitor

Bently Nevada 3500/61-05-00 | Non-Isolated Temp Monitor | Internal Barriers

Manufacturer: Bently Nevada | Product No.: 3500/61-05-00 | Type: Temperature Monitor with Recorder Outputs | Approval: None (00) | Made in: U.S.A.

I/O Module Configuration

• I/O Module Type: 05 = RTD/TC Non-Isolated I/O Module with Internal Barriers
• Agency Approval: 00 = None (not certified for hazardous locations)
• Key Feature: Internal barriers for intrinsic safety applications

Power and Input Specifications

• Power Consumption: 9 Watts nominal
• Input Channels: 1 to 6 RTD or Thermocouple signals
• Input Impedance: 10 MΩ per lead
• Isolation: None (non-isolated I/O module with internal barriers)

Thermocouple (TC) Input Ranges

• Type E: -100°C to +1000°C
• Type J: -18°C to +760°C
• Type K: -18°C to +1370°C
• Type T: -160°C to +400°C
• Type E Note: Above 35°C ambient, range reduces to -60°C to +1000°C. Do not configure below -60°C.

RTD Input Ranges

• Platinum (0.00385): -200°C to +850°C (Recommended)
• Platinum (0.00392): -200°C to +700°C
• Nickel (120Ω): -80°C to +260°C
• Copper (10Ω): -100°C to +260°C (Accuracy: ±3°C at 25°C)

Internal Barriers Feature

• Purpose: Provides intrinsic safety for field wiring
• Operating Temp with Internal Barriers: 0°C to +65°C (32°F to +150°F)
• Note: Reduced operating temperature range compared to standard I/O (-30°C to +65°C)
• I/O Module Depth: 163.1 mm (6.42 in) - deeper than standard I/O modules

Recorder Outputs

• Signal: 4 to 20 mA (proportional to full scale)
• Load Resistance: 0 to 600 Ω
• Voltage Compliance: 0 to +12 Vdc
• Resolution: 0.3662 µA per bit
• Accuracy: ±0.15% at room temperature, ±0.4% over full range
• Short Circuit Protection: Monitor unaffected by output shorts

Alarm Specifications

• Setpoints: Alert and Danger adjustable from 0 to 100% of full scale
• Alert Delay: 1 to 60 seconds (1 second intervals)
• Danger Delay: 1 to 60 seconds (0.5 second intervals)
• Alarm Accuracy: Within 0.13% of desired value
• Under and Over Alarms: Both available

Front Panel LEDs

• OK LED: Module operating properly
• TX/RX LED: Communication active with rack modules
• Bypass LED: Monitor in bypass mode

Accuracy at 25°C (Internal Termination Non-Isolated)

• Bulkhead Rack: ±3°C (±5.4°F)
• Standard Rack: ±3°C (±5.4°F)
• Copper RTD: ±3°C at 25°C (±5.4°F at 77°F)
• Cold Junction Compensation: ±1°C at 25°C (±1.8°F at 77°F)

Environmental Limits

• Operating Temperature (with internal barriers): 0°C to +65°C (32°F to +150°F)
• Storage Temperature: -40°C to +85°C

Physical Dimensions and Weight

• Monitor Module: 241.3 x 24.4 x 241.8 mm | 0.91 kg | 1 front slot
• I/O Module (internal barrier): 241.3 x 24.4 x 163.1 mm | 0.46 kg | 1 rear slot
• Note: I/O module is deeper than standard (163.1mm vs 99.1mm)

Package and Shipping

• Includes: Monitor module + RTD/TC non-isolated I/O module with internal barriers
• Total Weight: 1.37 kg | Carriers: FedEx, UPS, DHL (2-5 business days)

Frequently Asked Questions

• Q: What are internal barriers and when do I need them?
  A: Internal barriers provide intrinsic safety for field wiring in hazardous areas. Use this module when sensors are located in Class I, II, III, Division 1 or Zone 0/1 locations requiring energy limiting barriers.
• Q: Why is the operating temperature range reduced with internal barriers?
  A: The internal barrier I/O module operates from 0°C to +65°C (not -30°C to +65°C). The barrier components have a higher minimum temperature requirement. Do not use below 0°C.
• Q: What is the depth difference for the I/O module?
  A: Standard I/O modules are 99.1mm deep. The internal barrier I/O module is 163.1mm deep (64mm deeper). Ensure your rack has sufficient rear clearance.
• Q: What accuracy does this non-isolated internal barrier model provide?
  A: ±3°C at 25°C (±5.4°F at 77°F) in both bulkhead and standard racks. For higher accuracy (±1°C), choose external termination models.
• Q: Can I use this monitor in hazardous locations?
  A: The monitor itself has no agency approval (00). However, the internal barriers allow connection to sensors in hazardous areas. The monitor must still be installed in a safe area or appropriate enclosure.