Rockwell Automation 44887-PUB, 44887 Enwatch - Manual (Page 37)

33 Publication GMSI10-UM031C-EN-E - July 2009
Chapter
2
Specifications
This chapter lists the technical specifications for the Enwatch unit.
Enwatch Technical Specifications
Product Feature Specification
Inputs
Number of Channels
Voltage Protection
Input Impedance
Ranges
ICP Interface
Coupling
PGA Gains
Anti-Alias Filter
High Pass Filters
Channel Cross-Talk
Amplitude Accuracy
Phase Accuracy
Harmonic Distortions
Integration
Acquisition Modes
16 vibration and 4 tachometer
(synchronizer)
Protects against over-voltage (channel
auto-switch off)
2000 V ESD protection
1 MOhm
±10 mV to ±10 V, 7 ranges (software
selectable)
3.6 mA @ 24 VDC, configurable per channel
AC/DC (numeric measurements),
configurable per channel
DC offset removal by optional use of
channel 16
Specified in Chapter 1
Compound analog filter with roll-off better
than 20th order filter; cut-off frequency
related to sample rate.
4th order with corner frequencies 0.36,
2.67, 5.3, and 23.8 Hz
-80 dB
±2% typical in pass-band
±3%
-70 dB (typical)
One 2-stage with ideal stop-band edge at
0.36 Hz
Mode 1: Timed pickup
Mode 2: Data Ready flag
Mode 3: Data broadcast