GRAPHTEC Data Platform GL7000 Manuel utilisateur

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

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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

sensorsusing 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/s2), pC/(9.8m/s2), pC/g, pC/G

Pressure sensor pC/kPa, pC/bar, pC/(kg/cm2), pC/psi

Force or Load sensor pC/N, pC/kgf, pC/kg, pC/lb

IEPE type

Acceleration sensor mV/(m/s2), 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 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

sensorsusing 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/s2), pC/(9.8m/s2), pC/g, pC/G

Pressure sensor pC/kPa, pC/bar, pC/(kg/cm2), pC/psi

Force or Load sensor pC/N, pC/kgf, pC/kg, pC/lb

IEPE type

Acceleration sensor mV/(m/s2), 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)

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Type Description

Charge Sensor of the Charge output type

IEPE Sensor of the IEPE type

DC Voltage measurement (DC coupling)

AC Voltage measurement (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/s2)) IEP E type s ensor, Se nsitivity (unit: mV/(m/s2))

0.0100

0.5000

0.5001

2.0000

2.0001

5.0000

5.0001

10.0000

10.0001

20.0000

20.0001

50.0000

50.0001

100.0000

100.0001

200.0000

200.0001

500.0000

500.0001

999.9999

0.0100

0.0200

0.0201

0.0500

0.0501

0.2000

0.2001

0.5000

1.0000

1.0001

2.0000

2.0001

5.0000

5.0001

10.0000

10.0001

20.0000

20.0001

50.0000

50.0001

100.0000

100.0001

200.0000

200.0001

500.0000

500.0001

999.9999

1 m/s2N/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/s2N/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/s2N/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/s2N/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/s2N/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/s2N/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/s2N/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/s2N/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/s2N/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/s2X 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/s2X 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/s2X 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/s2X 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/s2X 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/s2X 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

Overseas Sales and Marketing Dep.

Charge module GL7-CHA, Method to take advantage

GL7000 Product Information (GL7-CHA, vol. 2, rev. 1.0) -Page 3-

2-1. Setting the GL7-CHA module, Using IEPE type acceleration sensor (1/2)

When IEPE type acceleration sensor is used, the sensor excitation current and sensor sensitivity need to be set for measuring acceleration

signal. The excitation current is required to drive the IEPE sensor. The sensor output is converted to the accelerometer signal using the sensor

sensitivity. The default setting of the unit on this module is set to the "m/s2" which is the unit of measurement certified by the International System

of Units (SI unit) for acceleration.

When sensorsother than the acceleration are used, scaling function will need to be used. If the accelerometers are scaled in other format than

"m/s2", such as "g" (for gravity), scaling function will need to be used. Please refer to section 2.4 for more detail on this.

Setting the sensor excitation

Setting sensor sensitivity

Input setting menu for GL7-CHA

Enter the value of the sensitivity. Sensitivity is displayed on the “Other

settings” menu.

Select the "Misc" for setting the

condition of the sensor.

Select the “Sensor sensitivity”for

setting condition on sensitivity.

Select the "Applied current" for setting

the condition.

In this example, the IEPE type

acceleration sensor that has

sensitivity of 10.00mV/(m/s2) is

used.

Select "4mA" or "8mA". Excitation current will be displayed on

the “Other settings” menu.

Note: The sensitivity of sensor is

written on the data sheet of the

sensor. The value is entered to the

GL7-CHA setting menu.

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2-1. Setting the GL7-CHA module, Using IEPE type acceleration sensor (2/2)

Setting of measuring range Setting of display range of signal (span)

Confirm the setting value of upper

(Max.) and lower (Min.) signal display

range.

Entered value for the signal display

range (span) is displayed.

Select the "Range" for setting the

measuring range.

Enter the value for the signal display

range.

Select the signal measuring range

from displayed settings.

Selected range is displayed. Select the "Span" for setting the

displayed range of signal.

Select the “Upper”or “Lower”values

for setting the signal display range.

Note: The signal is measured within the selected range. If "50m/s2" is

selected, the signal can be measured from -50m/s2to +50m/s2.

The available measuring range is automatically displayed that will be relative

to the setting of the sensor sensitivity.

Note: The measured signal is displayed on the

screen within the span setting. The range of

signal to be measured is set by the "Range".

Overseas Sales and Marketing Dep.

Charge module GL7-CHA, Method to take advantage

GL7000 Product Information (GL7-CHA, vol. 2, rev. 1.0) -Page 5-

2-2. Convert the measurement unit using the scaling function (1/2)

When the measured acceleration signal needs to be displayed with units other than “m/s2”even if the IEPE type sensor is scaled in th “m/s2”,

the scaling function can convert the measured signal to a different unit of measurement.

Input setting menu for GL7-CHA

Select "Scaling" for setting the

condition.

Enable Scaling.

Select the "Decimal point" for setting

the digits of the scaled value.

Select number of digits above the

decimal point. This will be how the

scaled values will be displayed.

Select the “Upper”or “Lower”values

for the “Scal. Value”. This is the

scaled value corresponding to the

measurement value for "Upper" and

"Lower" values from the “Meas. Value".

In this example, the sensor scaled

in the “m/s2”unit is used to

measure acceleration, and then

the measured signal is displayed

and saved in unit measurement,

"g" (gravitational acceleration).

The conversion rate between the

"m/s2" and "g" is as follows.

1 m/s2= 0.10197 g

1 g = 9.80665 m/s2

Setting of scaling value

Select the “Upper”or “Lower”values

for the “Meas. Value”. This is the

original measurement value which will be

converted to the scaled value.

Enter the value. If set value is out of

limit, change the setting of the

measuring range.

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Setting the scaling unit (select from pre-set)

Select the "Unit" for entering the unit

of scaled value.

Enter the unit using displayed

keyboard.

Select the type of signal for displaying

the unit that has been pre-set.

Press the "Select" for selecting type of

scaled signal.

2-2. Convert the measurement units using the scaling function (2/2)

Setting for scaling unit

Select the unit from preset.

Select the "Setting" for selecting type

of the unit.

Scaled value is displayed.

Note: The unit of scaling can be entered directly or it can be selected from the preset unit.

Enter the value for scaling.

Overseas Sales and Marketing Dep.

Charge module GL7-CHA, Method to take advantage

GL7000 Product Information (GL7-CHA, vol. 2, rev. 1.0) -Page 7-

2-3. Setting the GL7-CHA module, Using Charge output type sensor

When Charge output type acceleration sensor is used, sensor sensitivity need to be set for measuring acceleration signals. With the charge type

sensors, the excitation current is not required to drive the sensor. The sensor output is converted from the acceleration signal using the sensor

sensitivity. “Range”, “Scaling”, “Span”and other settingswill need to be defined. Please refer to the page for IEPE type sensor for securing

these settings.

When sensorsother than accelerometers are used, scaled measurements needs to be set. If the acceleration sensor is scaled in other than units

in “m/s2”, such as “g”(for gravity), you will need to define your scaled measured. Please refer to the next page on section 2.4 (page 8).

Setting of sensor sensitivity

Setting the measuring range

Input setting menu for GL7-CHA

Select the "Misc" for setting the

condition of the sensor.

Select the "Sensor sensitivity" for

setting the condition.

In this example, the Charge

output type acceleration sensor

has a sensitivity of 10.00pC/(m/s2).

Enter the value of the sensitivity. Entered sensitivity will be displayed.

Note: The sensitivity of sensor is

written on the data sheet for the

sensor.

Setting the scaling Setting the span (display range of signal)

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