PCB Piezotronics IMI SENSORS EXM641B01 Installation And Operating Manual page 11

Taking Measurements
When measuring the current output from the unit, use the following formula to calculate the vibration level:
Vibration Output = (Measured Output – 4mA) x (Full Scale Vibration Output /16mA)
Measured mA
4.00
8.00
12.0
15.75
20
Measured mA
4.00
8.00
12.0
15.75
20
Measured mA
4.00
8.00
12.0
15.75
20
640BX0
0.0 ips, pk
0.125 ips, pk
0.25 ips, pk
0.37 ips, pk
0.5 ips, pk
641BX0
0.0 ips, rms 0.0 ips, rms
0.125 ips, rms 0.25 ips, rms
0.25 ips, rms 0.5 ips, rms
0.37 ips, rms 0.73 ips, rms
0.5 ips, rms 1.0 ips, rms
645
0.0 g rms
1.25 g rms
2.50 g rms
3.67 g rms
5.00 g rms 10.0 g rms
640BX1
0.0 ips, pk 0.0 ips, pk
0.25 ips, pk 0.5 ips, pk
0.5 ips, pk 1.0 ips, pk
0.73 ips, pk 1.47 ips, pk
1.0 ips, pk 2.0 ips, pk
641BX1
0.0 ips, rms
0.5 ips, rms
1.0 ips, rms
1.47 ips, rms
2.0 ips, rms
646
0.0 g rms
2.50 g rms
5.00 g rms
7.34 g rms
640BX2
641BX2
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