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Maintenance Watchdog M9E-RF-1-50G

Wireless Accelerometer Model M9E-RF-1-50G

The M9E-RF-1-50G accelerometer is a wireless method of transmitting CBM vibration data in industrial environments. The unit contains a precision piezoelectric sensor, temperature sensor, digital signal processor, data memory, wireless transceiver, internal battery, and an internal antenna. Powered with an internal Lithium battery, the solid-state Accelerometer collects and transmits vibration data securely via a wireless link. The data collection parameters are configured from a networked Windows PC. Data in g's, ips, or mils can be in the form of time trace or FFT and thousands of units may share the same radio network. All units communicate with NAP914P access points which bridge the wireless network to ethernet network. Software control from a networked PC allows operators to configure thousands of M9E-RFs and monitor vibration data.

Applications
  • Condition Based Maintenance
  • Vibration Monitoring
  • Vibration Analysis
  • Machine Diagnostics

As a radio transmission device, the M9E-RF is extremely reliable. Handshaking, packet encoding and error checking are all performed automatically. For maximum confidence the M9E-RF performs periodic self-test diagnosis of power fluctuations, low battery, or dangerous internal temperatures. Should operating parameters be exceeded, the unit will either alert the operator wirelessly or self-initiate a system reset. Accelerometer Specifications

  • Piezoelectric Sensor

  • Selectable ± 50g or ± 5g full scale range

  • Z-axis Sensitivity

  • 0.35 Hz to 10,000 Hz Response

  • 5,000g Shock Protection

DSP Specifications

  • 1 Hz to 40K Hz Sampling Rate

  • Programmable Data Form
    - FFT in g's, ips or mils
    - Time Trace in g's, ips or mils

  • TEDS (Transducer Electronic Data Sheet) Including Calibration, Serial Number and Date of Manufacture

Wireless Specifications

  • Automatically Configurable Wireless Node

  • Operates in the License Free 902-928 MHz ISM Band

  • Encrypted Secure Transmissions

General Specifications

  • Nominal Battery Life of 2+ years

  • IP65, NEMA 4 Package

  • Housings of 303 Stainless and Polycarbonate

  • Meets FDA Reg CFR-21-178.3750

  • Integral 1/4"-28 Mounting Thread