Technical Specifications of Bently Nevada 3500/65-01-00 145988-02

Input and Power Data

The 3500/65-01-00 145988-02 consumes 3 watts nominal. It accepts 1 to 16 RTD or isolated tip TC signals. Input impedance exceeds 1 MΩ per lead input. The I/O module type is RTD/Isolated Tip TC with internal terminations. Agency approval option is none.

RTD Support Details

The 3500/65-01-00 works with 100Ω platinum RTD (α=0.00385). Range is -200°C to +850°C. It also supports 100Ω platinum RTD (α=0.00392) from -200°C to +700°C. 120Ω nickel RTD ranges from -80°C to +260°C. 10Ω copper RTD covers -100°C to +260°C. Platinum RTD with α=0.00385 is the recommended standard.

Signal Conditioning and Accuracy

All specifications are at +25°C (+77°F). Resolution is 1°C or 1°F. Internal termination accuracy is ±3°C at +25°C. External termination shows the same ±3°C accuracy. Cold junction compensation sensor accuracy is ±2°C at +25°C. No field calibration is required.

RTD Current Source

The RTD current source value is 913 ±7 µA at 25°C. This applies per transducer. The module provides one supply for 4-wire RTDs. It gives two supplies for 3-wire RTDs.

Alarm Configuration

You can set Alert and Danger setpoints via software. Alarms adjust from 0% to 100% of full scale. Alarm accuracy is within 0.13% of the desired value. The 3500/65-01-00 145988-02 offers both under and over alarm setpoints. Alert delay ranges from 1 to 60 seconds. Danger delay ranges from 1 to 60 seconds in 0.5-second steps.

Front Panel LEDs

The OK LED shows proper module operation. TX/RX LED indicates communication with other rack modules. Bypass LED lights when the monitor is in Bypass Mode. These LEDs enable quick status checks.

Environmental Limits

Operating temperature ranges from -30°C to +65°C. Storage temperature goes from -40°C to +85°C. This makes the Bently Nevada 3500/65 suitable for harsh industrial sites.

Physical Dimensions

Main module height is 241.3 mm (9.50 in). Width is 24.4 mm (0.96 in). Depth is 241.8 mm (9.52 in). Weight is 0.91 kg (2.0 lbs). It occupies one full-height front slot in the rack.

Compliance and Certifications

The module complies with FCC Part 15 rules. It meets EMC Directive 2014/30/EU standards. Electrical safety follows LV Directive 2014/35/EU and EN 61010-1. RoHS Directive 2011/65/EU is also met. The module is approved for ABS Marine and Offshore applications. It meets DNV GL rules for ships and offshore units.

Installation Guidelines for 3500/65-01-00 145988-02

Power down the rack before inserting the module. Insert the Bently Nevada 3500/65-01-00 into a full-height front slot. Secure it with the front panel screws. Connect RTD or TC signals to the internal termination points. Do not use external termination blocks with this internal version. Configure each channel using 3500 Configuration Software. Verify firmware versions before installation. The system needs 3500/22 firmware revision 1.50 or later. System 1 Software requires revision 5.2 with Service Pack 2.

Package Contents

• One 3500/65-01-00 145988-02 16-Channel Temperature Monitor main module

• Front panel screws (set of 2)

(Note: RTDs, TCs, and termination cables are sold separately. External termination blocks cannot be used with this internal termination version.)

Frequently Asked Questions (FAQ)

1. Can the Bently Nevada 3500/65-01-00 145988-02 mix RTD and TC inputs?
Yes, this monitor accepts both RTD and isolated tip TC signals. You can mix different transducer types across the 16 channels.

2. What is the minimum temperature for Type T thermocouples?
The 3500/65-01-00 supports Type T from -160°C up to +400°C. This works for cryogenic applications.

3. Do I need external termination blocks for this module?
No, this is the internal termination version (I/O Type 01). You cannot use external termination blocks with this model.

4. What happens if I use older firmware with the 3500/65?
The module may cause an I/O Module Mismatch error. You will see a 562 ADC Failure in the System Event List. Always update firmware first.

5. How do I set alarm delays on this temperature monitor?
Use the 3500 Configuration Software. Alert delays are set from 1 to 60 seconds. Danger delays use 0.5-second increments within the same range.