Bently Nevada 3500/50M tachometer module

Main monitoring module 241.3mm × 24.4mm × 241.8mm (9.50in × 0.96in × 9.52in) 0.82kg (1.8lb) 1 full height front slot

Non barrier I/O module 241.3mm × 24.4mm × 99.1mm (9.50in × 0.96in × 3.90in) 0.20kg (0.44lb) 1 full height rear slot

I/O module with isolation barrier 241.3mm × 24.4mm × 163.1mm (9.50in × 0.96in × 6.42in) 0.46kg (1.01lb) 1 full height rear slot

Typical power consumption is 5.8W --

Safety Warning and Compliance Certification

1. Critical safety warnings

Prohibited as an overspeed protection system: The module does not have redundant protection and sufficient response speed, and cannot be used alone or as a component for speed control systems or overspeed protection systems (such as turbine overspeed shutdown); Analog output is only used for data recording, plotting, or display, and alarms are only used for alarm notification and do not have safety interlock function.

Limitations of magnetic electric sensors: Magnetic electric sensors cannot be used for reverse rotation monitoring and zero speed monitoring. At low speeds, the sensor output signal has no clear edges, which can cause misjudgment of the rotation direction.

Installation in hazardous areas: I/O modules with isolation barriers must be installed according to the specified drawings (138547, 149243/149244) to ensure compliance with hazardous area certification requirements and avoid safety risks.

2. Compliance certification

The module complies with multiple international standards and is suitable for industrial scenarios in different regions around the world

Certification category, compliance standards/directives, scope of application

EMC (Electromagnetic Compatibility) EU EMC Directive 2014/30/EU; EN 61000-6-2 (Industrial Immunity), EN 61000-6-4 (Industrial Emissions) European and globally recognized EMC standards regions

Electrical Safety EU Low Voltage Directive 2014/35/EU; EN 61010-1 Electrical Safety Requirements for Industrial Environments

Environmental Protection EU RoHS Directive 2011/65/EU restricts the use of hazardous substances

Maritime certification DNV GL classification society rules (ships, offshore platforms); ABS Classification Society Rules (Steel Ships, Marine Structures) for Maritime Ships, Marine Platform Equipment

Hazardous Area Certification cNRTLus: Class I, Division 2 (Groups A-D, T4); ATEX/IECEx: II 3G (Ex nA nC ic IIC T4 Gc) explosive environment (such as petrochemical workshops)

Configuration and ordering information

1. Configuration requirements

The specified version of firmware and software must be used to ensure compatibility between the module and the 3500 system

Firmware/software, minimum version, remarks

3500/50M module firmware Revision 5.30 module core firmware determines functional availability

3500/22M module firmware Revision 1.70 firmware for rack communication

3500/01 configuration software Version 4.20 is used for module parameter configuration (such as alarm threshold, sensor type)

3500/02 Data Collection Software Version 2.52 is used to collect module monitoring data

3500/03 Display Software Version 1.52 is used for local or remote display of monitoring data and alarms

Incompatible module 3500/20 (all versions) cannot be shared with 3500/20 module in the same rack

2. Ordering models and accessories

(1) Module model (3500/50-AA-BB)

AA (I/O module type): 01=I/O module with internal terminals; 02=I/O module with external terminal; 04=I/O module with built-in isolation barrier and internal terminals.

BB (hazardous area certification): 00=no certification; 01=cNRTLus certification (Class I, Division 2); 02=ATEX/IECEx/CSA certification (Class I, Zone 2).

(2) Key accessories

Accessory type, model, description

External terminal block (ET Block) 125808-05 tachometer ET block (European connector)

128015-05 Tachometer ET Block (Terminal Block Connector)

128702-01 Recorder ET Block (European connector)

128710-01 Recorder ET Block (Terminal Block Connector)

Signal cable 135101-AAAA-BB tachometer signal to ET block cable (AAAA=length: 0005=5 feet/1.5 meters, 0010=10 feet/3.0 meters, etc.); BB=assembly status: 01=not assembled, 02=assembled)

129529-AAAA-BB recorder output to ET block cable (same specifications as signal cable)

Spare part 288062-02 3500/50M module complete machine

133442-01 I/O module with internal terminal

136703-01 Discrete I/O Module with Built in Isolation Barrier and Internal Termination

134938 3500/50M User Guide

Installation and usage precautions

Sensor selection: Reverse monitoring and zero speed monitoring must use proximity probes, and the use of magneto electric sensors is prohibited; During installation, ensure that the clearance between the proximity probe and the speed measuring gear meets the requirements (usually 0.25-1.0mm) to avoid weak or distorted signals.

Wiring specifications: I/O modules with external terminals require separate ordering of external terminal blocks and cables; Different types of I/O modules cannot be mixed (for example, internal and external terminal modules cannot be shared on the same channel).

Installation in hazardous areas: Modules with isolation barriers must be wired according to specified drawings (such as 138547) to ensure effective isolation barriers and avoid safety risks in explosive environments.