Bently Nevada 3500/40M 140734-02 Speed and key phase monitoring module
Specific Parameters
Electrical Parameters
Operating Voltage Adapting to 3500 system backplane power supply, rated operating voltage ±15VDC, allowing voltage fluctuation ±5%
Operating Current Typical operating current 50mA per ±15VDC circuit, maximum operating current 80mA per ±15VDC circuit
Input Channels 4 independent speed/keyphasor input channels with electrical isolation between channels
Input Signal Types Magnetoelectric speed sensor signal (sine wave), Hall effect sensor signal (square wave), photoelectric sensor signal (pulse)
Speed Measurement Range 0.1rpm to 200,000rpm, supporting monitoring of low-speed and high-speed rotating equipment
Measurement Accuracy Speed measurement accuracy ±0.01%FS, phase measurement accuracy ±0.1°
Input Signal Amplitude Magnetoelectric sensor input amplitude 20mVpp to 25Vpp, pulse signal high level ≥3V, low level ≤0.8V
Input Impedance 10kΩ in magnetoelectric input mode, 100kΩ in pulse signal input mode
Protection Functions Built-in overvoltage protection (maximum withstand voltage ±30VDC), short circuit protection, electromagnetic interference suppression
Power Consumption Typical power consumption of single module ≤3W, full-load power consumption ≤5W
Certification Standards Compliant with CE, UL, cUL, API 670, IEC 61010-1 standards
Mechanical Parameters
Overall Dimensions 160mm×100mm×30mm, standard rack-mounted design suitable for 3500 system cabinets
Weight Approximately 0.5kg, lightweight structure facilitating module insertion, removal and maintenance
Mounting Method 3500 system standard slot mounting, compatible with 3500/15 rack and 3500/20 rack
Housing Material Industrial-grade high-strength flame-retardant plastic shell with electromagnetic shielding performance
Connection Method Backplane bus connection (power supply and communication), front-end spring terminals (signal input)
Protection Rating IP20, suitable for indoor industrial control cabinet environments
Status Indication Equipped with module power (green), operation (yellow), channel alarm (red), system communication (blue) LED indicators
Environmental Parameters
Operating Temperature 0℃ to 65℃, no performance derating over the entire temperature range
Storage Temperature -40℃ to 85℃, meeting extreme storage and transportation requirements
Relative Humidity 5% to 95% (non-condensing), adapting to high-humidity industrial scenarios
Vibration Resistance Complies with IEC 60068-2-6 standard, 2g acceleration at 5Hz-500Hz frequency range
Shock Resistance Complies with IEC 60068-2-27 standard, 15g acceleration (11ms duration)
EMC Compliance Complies with EN 55014-1, IEC 61000-4-2/3/4/6 standards, low electromagnetic interference and high anti-interference capability
Product Performance
Excellent measurement accuracy, ±0.01%FS speed accuracy and ±0.1° phase accuracy ensuring reliability of monitoring data
Wide range coverage, 0.1rpm to 200,000rpm range adapting to all types of rotating equipment from low-speed pumps to high-speed turbines
Strong signal compatibility, supporting input of magnetoelectric, Hall, photoelectric and other sensors, reducing module selection costs
Fast response speed, signal processing delay ≤1ms, overspeed alarm triggering time ≤5ms
Flexible system integration, supporting cascading of multiple modules in 3500 system, expandable to 64 speed monitoring channels
Comprehensive self-diagnostic capability, real-time monitoring of channel status, sensor connectivity and module hardware, with precise fault location
High operational stability, industrial-grade component selection and strict aging testing, Mean Time Between Failures (MTBF) ≥1,500,000 hours
High maintenance convenience, modular plug-in design + clear status indication, fault module replacement without system shutdown














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