Integrated Electronic PiezoElectric (IEPE)
TEDS
Class 1
IEPE sensor
optional
Us
Signal (+)
Signal ground
+
-
+V
-V
TEDS
Control
Signal conditioner
Amplifier
Figure A.221:
IEPE mode block diagram
Input ranges
±
1 mV,
±
10 mV,
±
100 mV,
±
1 V,
±
10 V
Over voltage protection
-
15 V to + 26 V
IEPE compliance voltage (Us)
≥ 24 V
IEPE gain error drift
Typical:
±
15 ppm/°C (9 ppm/°F), maximum:
±
35 ppm/°C (20 ppm/°F)
Excitation current (I)
2, 4, 6, 8 mA, software selectable
Excitation current accuracy
±
5%
Coupling time constant
1.5 s
-
3 dB high pass bandwidth limit
0.1 Hz
±
20%
Maximum cable length
100 m (RG
-
58)
Wire diagnostics
Open and shorted IEPE wiring detected
TEDS support
Class 1, including software selectable auto detect the presence of an attached sensor
IEPE Mode Wire Diagram
GN1640B
GN840B
KAB173
TEDS
Class 1
IEPE
10
2
3
4
5
6
7
8
9
11
14
13
12
1
Signal
Signal wire
Shield
(+)
Signal ground
7
4
Housing
Shield
Signal wire
Figure A.222:
Recommended IEPE connection
GEN3i
644
I3763-3.1 en HBM: public
