
Emerson MMS-6140 Relative Rotor Vibration Monitor
Technical Data: Open circuit and closed circuit mode Channel or module inhibit Measuring range multiplier to modify the alarm limits during run-up or run-down; adjustable within 1.000 to 4.999; 24 V logic. Input resistance: ≥ 30 kΩ Key pulse input: 1 pulse per revolution for analysis purposes of the system: 24 V Logic Input resistance: > 30 kΩ Pulse duration: min. 10µs (edge-triggered) Voltage inputs: 0…10 V; (Two, one for each channel) Input impedance: > 100 kΩ Resolution: 10 bit Features: Part of the MMS 6000 Machine Monitoring System For connection of one eddy current sensor and one seismic or piezo-electric transducer. Signal frequency ranges 1…250 resp. 5….2000 Hz Both channels may also be used in single-channel mode, channel 1 for shaft vibration and channel 2 for bearing vibration. Measuring results of both channels to be combined with each other for calculation of the absolute shaft vibration. Sensor supply balanced to ground to suppress disturbance