Rockwell Automation EK-44750C Enwatch Unit - Manual (Page 31)

Rockwell Automation Publication GMSI10-IN001A-EN-P - May 2013
Enwatch Unit 31
Specifications
Enwatch Technical Specifications
Product Feature Specification
Inputs Number of Channels 16 vibration and 4 tachometer (synchronizer)
Voltage Protection Protects against over-voltage (channel auto-switch off)
2000 V ESD protection
Input Impedance 1 M

Ranges ±10 mV… ±10 V, 7 ranges (software selectable)
ICP Interface 3.6 mA @ 24V DC, configurable per channel
Coupling AC/DC (numeric measurements), configurable per channel
DC offset removal by optional use of channel 16
PGA Gains Set when a route is loaded by the Emonitor software
Anti-alias Filter Compound analog filter with roll-off better than 20th order filter; cut-off frequency related to sample rate.
High-pass Filters 4th order with corner frequencies 0.36, 2.67, 5.3, and 23.8 Hz
Channel Cross-Talk -80 dB
Amplitude Accuracy ±2% typical in pass-band
Phase Accuracy ±3%
Harmonic Distortions -70 dB (typical)
Integration One 2-stage with ideal stop-band edge at 0.36 Hz
Acquisition Modes Mode 1: Timed pickup
Mode 2: Data Ready flag
Mode 3: Data broadcast
Spike Energy Measurement gSE Filters High pass at 200 Hz & 5 kHz 2nd order
Triggers Types TTL Isolated or Non-Isolated, or any voltage up to +24 V
Maximum combined current for all channels, not to exceed 100mA
Machine Speed Range 1 to 60,000 RPM
Time to Lock 2 revolutions
Averaging 1, 2, 4, ... 32,000 averages, programmable
Tachometer Information RPM using trigger input
Trigger Delays Post-trigger delays up to 32,768 samples
Pre-trigger delays up to 16,384 samples
(not used with the Emonitor software)
Processing Time Domain ADC 16 bit
Sampling Rate 64 Hz to 51.2 kHz
Dynamic Range 96 dB (theoretical)
Block Lengths 256, 512, 1024, 2048, 4096, or 8192 with averaging
up to 16,384 without averaging
Overall Units Acceleration, velocity, or displacement (double integration in one level hardware & one level software), and Spike
Energy data
Outputs Status LEDs indicate system functions
Interface Port RS232C, 9600 baud for diagnostics
Storage Memory Buffer 640 KB