Bently Nevada 3500/33-01-00 149992-01 Relay Module

Bently Nevada 3500/33-01-00 149992-01 16-Channel Relay Module

Product Introduction

The Bently Nevada 3500/33-01-00 149992-01 provides 16 independent relay outputs for machinery protection. This module installs in a single full-height front slot. It communicates with other 3500 rack modules via the backplane. Front panel LEDs show OK, TX/RX, and channel alarm status. Additionally, the relays are epoxy-sealed with built-in arc suppression. Made in the U.S.A., the Bently Nevada 3500/33-01-00 149992-01 suits standard, failsafe, hazardous area, and low-current applications.

Technical Specifications

Power and Operating Environment

Typical power consumption is 5.8 watts. Operating temperature ranges from -30°C to +65°C (-22°F to +150°F). Storage temperature spans -40°C to +85°C (-40°F to +185°F). Humidity tolerance is 95%, non-condensing.

Relay Configuration and Operation

The Bently Nevada 3500/33-01-00 149992-01 uses single-pole double-throw (SPDT) relays. Four groups of four channels are switch-selectable for normally de-energized (ND) or normally energized (NE) operation. Relay contact life is 10,000 cycles. The arc suppressor is rated at 250 Vrms and installed as standard.

Contact Ratings for Standard Systems

For DC resistive loads, maximum switched current is 5 A. Maximum switched power varies by voltage: 70 W at 24 Vdc, 10 W at 48 Vdc, and 9 W at 60 Vdc. Maximum switched voltage is 125 Vdc. For AC resistive loads, maximum switched current is 5 A. Maximum switched power is 1200 VA. Maximum switched voltage is 250 Vac. Minimum switched current is 100 mA at 5 Vdc.

Contact Ratings for Failsafe and Hazardous Area Systems

When used in failsafe or hazardous area systems, the Bently Nevada 3500/33-01-00 149992-01 has different ratings. Maximum switched current remains 5 A. However, maximum switched voltage drops to 30 Vdc. Minimum switched current stays at 100 mA at 5 Vdc for standard silver contacts.

Special Low Current Relay Applications

For low current applications, gold-plated contacts are available. Minimum switched current is 1 mA at 1 Vdc. Maximum switched current is 100 mA at 48 Vdc. For AC up to 120 Vac, the minimum switching current is 1 mA. Importantly, the maximum switching current before damaging gold relays is 5 mA.

Front Panel Indicators

The OK LED illuminates when the Bently Nevada 3500/33-01-00 149992-01 operates properly. The TX/RX LED flashes during communication with other 3500 rack modules. The CH Alarm LED lights up when any relay channel is in an alarm state.

Mechanical and Environmental Limits

Physical Dimensions

The main module measures 241 mm x 24.4 mm x 242 mm (9.50 in x 0.96 in x 9.52 in). Weight is 0.7 kg (1.6 lb). Rack space requirement is one full-height front slot.

Environmental Sealing

Relays are epoxy-sealed for environmental protection. This sealing improves reliability in industrial conditions.

Software and Ordering Considerations

First, the Bently Nevada 3500/33-01-00 149992-01 requires 3500 Rack Config version 3.3 or later. Additionally, it needs 3500 Data Acquisition Software version 2.40 or later. Furthermore, the module requires 3500 Data Display Software version 1.40 or later.

For hazardous area use, note these restrictions. When ordered with multiple approvals option (-02), the Bently Nevada 3500/33-01-00 149992-01 is certified to Zone 2 standards. However, this module does not meet the increased spacing requirements for higher voltages. Therefore, the voltage is limited compared to other approval options. Using higher voltages violates hazardous area certificates.

For North American Division 2 standards with CSA-only approvals (-01), the rating is derated to 30 Vrms. This complies with 61010-1 type test requirements. Moreover, if the Bently Nevada 3500/33-01-00 149992-01 is part of a functional safety (SIL) system, the safety certificate requires restricted voltage. Higher voltages are not allowed for SIL systems.

Installation Guidelines

Before installation, verify software versions meet the requirements. Power down the 3500 rack. Insert the Bently Nevada 3500/33-01-00 149992-01 into a full-height front slot. Then, configure each group of four channels for ND or NE operation using the onboard switches. After installation, power up the rack. Check that the OK LED illuminates. Finally, verify communication via the TX/RX LED flashes.

Packaging List

• Bently Nevada 3500/33-01-00 149992-01 16-Channel Relay Module (1 unit)

• Installation documentation (1 copy)

Shipping method: FedEx, UPS, DHL

Frequently Asked Questions (FAQ)

1. What software versions work with the Bently Nevada 3500/33-01-00 149992-01?
The Bently Nevada 3500/33-01-00 149992-01 requires Rack Config v3.3 or later, Data Acquisition v2.40 or later, and Data Display v1.40 or later.

2. Can I use this relay module in a SIL safety system?
Yes, but the functional safety certificate restricts voltage. Higher voltages are not allowed for SIL systems with the Bently Nevada 3500/33-01-00 149992-01.

3. What is the difference between ND and NE operation?
ND means normally de-energized (relay coil off in normal state). NE means normally energized (relay coil on in normal state). Four groups of four channels are switch-selectable.

4. How many cycles can the relays handle?
Relay contact life is 10,000 cycles. The relays are epoxy-sealed with built-in arc suppression for reliability.

5. What is the minimum switched current for low current gold contacts?
For low current applications with gold-plated contacts, the minimum switched current is 1 mA at 1 Vdc. Do not exceed 5 mA for AC up to 120 Vac to avoid damage.