3500/61-01-02 | Bently Nevada 3500 Monitor

Product Overview

The Bently Nevada 3500/61-01-02 Temperature Monitor delivers accurate temperature measurement for critical machinery protection. This module accepts up to six RTD or thermocouple inputs. It provides reliable performance with integrated recorder outputs for data acquisition.

• Manufactured by Bently Nevada in the U.S.A. This 3500/61-01-02 model includes non-isolated I/O module with internal terminations.
• Agency approval option 02 provides ATEX, IECEx, and CSA (Class 1, Zone 2) certification for hazardous area installation.
• Monitor occupies one full-height front slot. I/O module requires one full-height rear slot in the 3500 rack.
• Front panel LEDs indicate OK status, communication activity, and Bypass mode operation.

Technical Specifications

• Brand: Bently Nevada | Model: 3500/61-01-02 | Type: Temperature Monitor with Recorder Outputs
• Inputs: Accepts 1 to 6 RTD or TC transducer signals. Input impedance is 10 MΩ per lead.
• Power Consumption: Nominal 9 watts for the 3500/61 monitor module.
• RTD Support: 100Ω platinum (alpha 0.00385/0.00392), 120Ω nickel, 10Ω copper. Supports 3-wire and 4-wire configurations.
• Thermocouple Support: Types E, J, K, and T with wide temperature ranges from -256°F to +2498°F.
• Recorder Outputs: Provides +4 to +20 mA signals proportional to monitor full-scale. Load resistance range is 0 to 600 Ω.
• Output Resolution: 0.3662 µA per bit. Accuracy is ±0.15% at room temperature, ±0.4% over temperature range.
• RTD Current Source: 925 ±15 µA at 25°C per transducer.
• Accuracy: ±3°C at 25°C for internal termination non-isolated configuration.

Environmental Limits

• Operating Temperature: -30°C to +65°C (-22°F to +150°F) with internal/external termination I/O modules.
• Storage Temperature: -40°C to +85°C (-40°F to +185°F).
• Isolation: System isolation is 500 Vdc. Channel to channel isolation is 250 Vdc.

Physical Dimensions

• Monitor Module: 241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in). Weight: 0.91 kg (2.0 lb).
• I/O Module: 241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in). Weight: 0.45 kg (1.0 lb).

Installation Guide

• Install monitor module in any full-height front slot of the 3500 rack.
• Install matching I/O module in the corresponding full-height rear slot.
• Connect field wiring to internal terminations per the I/O module type.
• Configure channel settings using 3500 rack configuration software.
• Verify proper LED indication after power-up.

Package Includes

• 1 x Bently Nevada 3500/61-01-02 Temperature Monitor Module
• 1 x Matching I/O Module with Internal Terminations
• Product documentation and installation guide

Shipping Information

• We ship via FedEx, UPS, or DHL worldwide.
• Expedited shipping options available upon request.
• Professional packaging ensures safe delivery.

FAQ

Q: 3500/60 vs 3500/61 difference?

A: 3500/61 adds recorder outputs. Power: 9W vs 7W for 3500/60.

Q: Works with 3-wire RTDs?

A: Yes. 3500/61-01-02 supports both 3-wire and 4-wire RTDs with dual current sources.

Q: Best RTD type to use?

A: 100Ω platinum with 0.00385 alpha. This is the industrial standard Bently Nevada recommends.