Bently Nevada 135489-02

Ordering Information

Product Description

3500/42M-AA-BB

A: I/O Module Type

See I/O Module Types on page 19.

B: Hazardous Area Approval Option

00

None

01

CSA / NRTL / C (Class 1, Division 2)

02

ATEX / IECEx / CSA (Class 1, Zone 2)

Technical Parameters

Channels: 4 isolated analog inputs, selectable for Bently Nevada 135489-02:

Eddy-current proximity probes (0–50 V p-p)

IEPE accelerometers (4 mA loop-powered)

Intrinsic-Safety Barriers: Internal zener-diode/barrier network per channel in Bently Nevada 135489-02, certified for Class I Div 2/Zone 2 use

Probe Excitation: –23 V DC @ ≤ 12 mA per channel (barrier-isolated)

Input Conditioning:

Programmable gain (×1, ×2, ×5)

Built-in termination resistors (1 kΩ for probes, 120 Ω for IEPE) in Bently Nevada 135489-02

Field-selectable band-pass filters (1×, 2×, broadband vibration bands)

Isolation: 1 kV barrier secondary-to-chassis ground

Power Consumption: 24 V DC (18–32 V DC), ≤ 4 W total

Environmental:

Operating Temp: 0 °C to +70 °C

Storage Temp: –40 °C to +85 °C

Humidity: ≤ 95 % RH, non-condensing for Bently Nevada 135489-02

Product function

Intrinsic-Safety Signal Conditioning: Provides excitation, barrier isolation, and linearization through Bently Nevada 135489-02 for low-level signals in hazardous areas.

On-Board Barriers: Eliminates separate barrier enclosures—reducing panel footprint in Bently Nevada 135489-02.

Digital Backplane Output: Converts conditioned signals into digital data distributed over the 3500 backplane bus.

Core Supporting Modules

3500/00 Rack Chassis: Supplies backplane power for Bently Nevada 135489-02 and communications bus.

3500/01 System Interface Module: Aggregates digital I/O data

3500/03 Relay Output Module: Delivers form-C relay contacts

3500/04 Analog-Output Module: Provides 4–20 mA outputs

3500/65 Loss-of-Signal Module: Monitors channel continuity