
Contents
1.
Application
...............................................................................................................................3
2.
Function and Operation
............................................................................................................4
3.
Power Supply and Mass
...........................................................................................................5
3.1.
Grounding Concept
...........................................................................................................5
3.2.
External Power Supply
......................................................................................................5
3.3.
Sources of Errors
...............................................................................................................5
3.3.1.
Avoiding Ground Loops
..............................................................................................5
3.3.2.
Low-Frequency Noise
.................................................................................................6
4.
Inputs
.......................................................................................................................................6
4.1.
Charge Input
......................................................................................................................6
4.2.
IEPE Input
.........................................................................................................................7
4.2.1.
Switching Off the IEPE Power Supply
.......................................................................8
5.
Amplifier
..................................................................................................................................8
6.
Transducer Sensitivity (M72Ax / M72S1)
................................................................................9
7.
Level Indicators
......................................................................................................................10
8.
Filters and Integrators
.............................................................................................................10
8.1.
Low Pass Filter
................................................................................................................10
8.2.
High Pass Filter
...............................................................................................................11
8.3.
Integrators
........................................................................................................................11
9.
Keypad Lock
..........................................................................................................................13
10.
Function Check and Calibration
...........................................................................................13
11.
Control via USB (M72R1 / M72S1)
.....................................................................................14
11.1.
Rack M72R8 and M72S8
..............................................................................................14
11.2.
USB Interface
................................................................................................................15
11.3.
Interface Commands
......................................................................................................16
11.4.
Setup Tool for M72R8 / M72S8 Rack Cases
.................................................................18
12.
Technical Data
......................................................................................................................20
Appendix:
Warranty
Declaration of Conformity
1