Overseas Sales and Marketing Dep.
Charge Module
GL7-CHA
DATA PLATFORM GL7000
Contents
1. Overview of the GL7-CHA module
P. 1
2.1 Using the IEPE-type acceleration sensor
P. 3
2-2. Convert the unit using scaling function
P. 5
2-3. Using the Charge output type sensor
P. 7
3. Using TEDS-based Acceleration sensor
P. 10
DATA PLATFORM ON THE GO
Acceleration/Charge Module [GL7-CHA]
Supplemental User Guide
Signal conditioning device for the GL7000 amplifier using
Piezoelectric sensors
This is a technical guide for measuring using the [GL7-CHA]
module.
2. Setting the GL7-CHA module
4. Measuring Velocity or Displacement
P. 11
GL7-CHA, vol. 2, rev. 1.0 (Jan. 2014)
2-4. Using other sensors
P. 8
Overseas Sales and Marketing Dep.
Charge module GL7-CHA, Method to take advantage
GL7000 Product Information (GL7-CHA, vol. 2, rev. 1.0) - Page 1 -
Input for IEPE type sensor and voltage
The charge/acceleration module GL7-CHA is the signal conditioner for the GL7000. It carries a isolated 4 channel input, and corresponds to
sensors using Piezoelectric element (either the charge signal output type and IEPE type), and supports voltage measurement. Input signal type
can be set individually for each channels.
• Supports charge output type sensor, IEPE sensor, and also voltage input
• Supports sensor corresponding to TEDS
• High precision module by reduced noise suppression through a low-pass, high-pass, and anti-aliasing filter
Input for the charge signal output type sensor
+
-
+
-
Signal cable of sensor
(miniature connector, plug)
Miniature type connector
(screw size: #10-32 UNF)
Signal cable of sensor
(BNC connector, plug)
BNC connector,
female
Charge Module
GL7-CHA (4ch / unit)
When using the charge output type sensor, connect the sensor to the
miniature connector.
When measuring voltage or using the IEPE sensor, connect the
sensor to the BNC connector.
Usable acceleration sensor: 0.01pC/(m/s2) to 999.9pC/(m/s2)
Usable acceleration sensor: 0.01mV/(m/s2) to 999.9mV/(m/s2)
GL7-CHA can be used with the piezoelectric type acceleration sensors as well as other sensors listed below.
Sensor type Example of sensor sensitibity (Unit of output signal)
Piezoelectric
element type sensor
Charge output type
Acceleration sensor pC/(m/s
2
), pC/(9.8m/s2), pC/g, pC/G
Pressure sensor pC/kPa, pC/bar, pC/(kg/cm
2
), pC/psi
Force or Load sensor pC/N, pC/kgf, pC/kg, pC/lb
IEPE type
Acceleration sensor mV/(m/s
2
), mV/(9.8m/s2), mV/g, mV/G
Pressure sensor mV/kPa, mV/bar, mV/(kg/cm2), mV/psi
Force or Load sensor mV/N, mV/kgf, mV/kg, mV/lb
1. Overview for the GL7-CHA module (1/2)
Overseas Sales and Marketing Dep.
Charge module GL7-CHA, Method to take advantage
GL7000 Product Information (GL7-CHA, vol. 2, rev. 1.0) - Page 2 -
Type Description
Charge Sensor of the Charge output t ype
IEPE Sensor of the IEPE type
DC Voltage measurement (DC coupling)
AC Voltage m easurement (AC coupling)
Charge-RMS RMS measurement in charge output type sensor
IEPE-RMS RMS measurement in IEPE type sensor
DC-RMS RMS measurement in Voltage (DC coupling)
AC-RMS RMS measurement in Voltage (AC coupling)
1. Overview of the GL7-CHA module (2/2)
The GL7-CHA module can measure the signal of the piezoelectric type sensors and voltage. The input signal type is set on the input settings
menu.
Input setting menu for GL7-CHA
Select the "Input" for setting the type
of input signal.
Select the type of input signal.
Note:
When the input type is set to the
"IEPE" or "IEPE-RMS", the excitation
current for the sensor will be given
out from the input connector.
Note:
When the input type is set to the "Charge", "Charge-RMS", "IEPE" or "IEPE-RMS", the available measuring range is automatically set shown in the following table.
Rabge
Charge signal output type sensor, Sensitivity (unit: pC/(m/s
2
)) IEPE type sensor, Sensitiv ity (unit: mV/(m/s2))
0.0100
to
0.5000
0.5001
to
2.0000
2.0001
to
5.0000
5.0001
to
10.0000
10.0001
to
20.0000
20.0001
to
50.0000
50.0001
to
100.0000
100.0001
to
200.0000
200.0001
to
500.0000
500.0001
to
999.9999
0.0100
to
0.0200
0.0201
to
0.0500
0.0501
to
0.2000
0.2001
to
0.5000
0.5000
to
1.0000
1.0001
to
2.0000
2.0001
to
5.0000
5.0001
to
10.0000
10.0001
to
20.0000
20.0001
to
50.0000
50.0001
to
100.0000
100.0001
to
200.0000
200.0001
to
500.0000
500.0001
to
999.9999
1 m/s
2
N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A X X X X
2 m/s
2
N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A X X X X X
5 m/s
2
N/A N/A N/A N/A N/A N/A X X X X N/A N/A N/A N/A N/A N/A N/A N/A X X X X X X
10 m/s
2
N/A N/A N/A N/A N/A X X X X X N/A N/A N/A N/A N/A N/A N/A X X X X X X X
20 m/s
2
N/A N/A N/A N/A N/A X X X X X N/A N/A N/A N/A N/A N/A X X X X X X X N/A
50 m/s
2
N/A N/A N/A X X X X X X X N/A N/A N/A N/A X X X X X X X X N/A N/A
100 m/s
2
N/A N/A X X X X X X X N/A N/A N/A N/A N/A X X X X X X X N/A N/A N/A
200 m/s
2
N/A N/A X X X X X X N/A N/A N/A N/A N/A X X X X X X X N/A N/A N/A N/A
500 m/s
2
N/A X X X X X X N/A N/A N/A N/A N/A X X X X X X X N/A N/A N/A N/A N/A
1000 m/s
2
X X X X X N/A N/A N/A N/A N/A N/A X X X X X X X N/A N/A N/A N/A N/A N/A
2000 m/s
2
X X X X X N/A N/A N/A N/A N/A N/A X X X X X X N/A N/A N/A N/A N/A N/A N/A
5000 m/s
2
X X X X N/A N/A N/A N/A N/A N/A X X X X X X N/A N/A N/A N/A N/A N/A N/A N/A
10000 m/s
2
X X X N/A N/A N/A N/A N/A N/A N/A X X X X X N/A N/A N/A N/A N/A N/A N/A N/A N/A
20000 m/s
2
X X N/A N/A N/A N/A N/A N/A N/A N/A X X X X N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
50000 m/s
2
X N/A N/A N/A N/A N/A N/A N/A N/A N/A X X X N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
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