A&D Omniace RA2000 series User manual

1WMPD4003505
AP Amplifier Series
RA2000 Series
Amplifier Units

AP Amplifier Series
RA2000 Series
Amplifier Units
Instruction Manual

1
INTRODUCTION
Thank you very much for purchasing the Amplifier Units, Omniace RA2000 Series (RA2300MKⅡ, 2800A).
Prior to using the units, please carefully read the instruction manual so that you can correctly use the
amplifier units. This instruction manual provides operating instruction information on the following amplifier
units:
2ch High-Resolution DC Amp Unit TC-DC Amp Unit
2ch FFT Amp Unit F/V Converter Unit
2ch High-Speed DC Amp Unit 2ch Vibration & RMS Amp Unit
2ch AC Strain Amp Unit 2ch DC Strain Amp Unit
Event Amp Unit 2ch Zero Suppression Amp Unit
2ch TC-DC Amp Unit
This instruction manual is to provide information that is necessary for you to safely and correctly operate the
amplifier units, Omniace RA2000 Series. Please always place this instruction manual together with the
amplifier units whenever you use the units, so that you can access and refer to the manual at any time.
This instruction manual involves operating instruction information, advice and suggestions on the use of the
amplifier units, Omniace RA2000 Series, as well as their basic functions. For operating instruction information
other than that described herein, please refer to the other instruction manuals attached hereto.
If you have questions on any descriptions of this instruction manual, please contact marketing/sales
personnel of A&D.
The separate-volume instruction manuals related to amps are as follows:
Correspondence Product Titles of instruction manuals
RA2300MKⅡInstruction Manual MAINFRAME For RA2300MKⅡ
RA2800A Instruction Manual MAINFRAME For RA2800A
Before Using Amplifier Units:
●Instructions for unpacking
Please unpack the package, only after the temperature of the content of the package becomes almost the
same as that of the unpacking room or environment. This is because, particularly when it is cold in winter,
dew condensation would occur on the surface of the equipment, thus creating a possibility of equipment
failure, if you unpack the package in a warm environment right after bringing it from the open air.
●Confirmation of contents
A&D is always taking the utmost care of providing customers with flawless products, including through the
use of its inspection system, etc. However, please confirm that no defects can be found in appearance of
the equipment upon unpacking the package. Also, please confirm that you have had all accessories in
place. In addition, please check the amplifier units as to the specifications of the equipment. If, at the
worst, you find any defects or lack of contents, please contact your dealer.
●Procedure of changing amplifier units
Please refer to “Chapter 5. Procedure for Changing Amplifier Units”, when you want to change your
amplifier units.

2
Notice
●If anything unusual happens during the use of the equipment, immediately switch off the
mainframe of the Omniace RA2000 Series and disconnect it from the power source.
●If you cannot find the cause of the problem, contact our sales representative.
●Contents of this instruction manual are subject to change without prior notice.
●Reprinting or reproduction of this manual, in whole or in part, without permission is
prohibited.
●A&D has made every effort to attain the completeness in contents of this manual. Please feel
free to contact our sales representative regarding any errors, omissions, questions or
suggestions, if you find one.
Safety Considerations and Precautions - Warning
and Caution
●Notes for safely using Amplifier Units
While the amplifier units have been manufactured by putting the highest priority on safety aspects, errors in
handling or operating the equipment on the part of customers could lead to serious accidents. Please read
carefully and comprehend thoroughly the Instruction Manual before using the amplifier units, so that such
accidents can be avoided.
Please be sure to observe the descriptions hereunder when using the equipment. No warranties or
assurances will be provided or implied for any injuries or damages resulting from actions not complying
with the handling or operating Warnings, Cautions or alike.
The designations described below are used throughout the instruction manual to secure the safe usage
and operation of the amplifier units; the meaning the designations are explained in the following:
If any instructions in WARNING are ignored, the ignorance could lead
to one or more of the following:
1. possibility of human deaths or serious injuries
2. high rate of occurrence of minor personal injuries or non-personal
physical damages
If any instructions in CAUTION are ignored, the ignorance could lead
to one or more of the following:
1. risk of human injuries
2. possibility of non-personal physical injuries not involving human
injuries
CAUTION
WARNING

3
WARNING indication labels of amplifier units
●Input signal connection and permissible common mode input voltages
First, confirm that the recorder unit of the Omniace RA2000 Series is correctly and securely grounded
through the protective grounding terminal, before connecting the equipment with a device to be measured.
Also, be careful so that the input voltage does not exceed the permissible range of common mode input
voltage, when you connect an amplifier unit with the measurement equipment.
Otherwise, it is very dangerous since your ignorance in these respects could lead to equipment failure. Be
sure to use the equipment within the permissible range of common mode input voltage.
Input units Permissible common mode input voltage
2ch High-Resolution DC Amp Unit
2ch FFT Amp Unit
2ch High-Speed DC Amp Unit
Event Amp Unit
F/V converter Unit
2ch Vibration & RMS Amp Unit
2ch Zero Suppression Amp unit
42 VDC (in DC or in AC peak voltage)
for units by itself
*300 VAC when used with insulated BNC
cables (optional item)
2ch AC Strain Amp Unit
2ch DC Strain Amp Unit 300 VAC
2ch TC-DC Amp Unit 42 V (in DC or in AC peak voltage)
TC-DC Amp Unit 300 V (in DC or in AC peak voltage)
*The common mode voltage refers to the voltage commonly applied between the ground and two input
terminals (+, -) as illustrated in the figure below.
Recorded waveforms may sometimes involve noise components due to degradation of common mode
rejection ratio (CMRR), when impulsive common mode voltages like noise are applied.
●Input signal cable
Use by all means insulated BNC cables (optional item: signal cables 0311-5175, with a BNC connector and
test clips, of 2 m long) for input connection, when the equipment is equipped with input terminals of the
BNC type.
Be careful not to touch the outer shells of metal type BNC connectors, since they have the negative (-)
polarity potential of the signal. You would suffer an electric shock when touching the outer shell; it is very
dangerous for you to touch it. Please do not use metal type BNC plugs as they will cause difficulties in
mating with insulated BNC sockets.
WARNING
+
-
input section Cabinet
～
～
GND
input signal
common mode voltage
ground

4
●Warning against electric shock and permissible input voltage
Do not touch, by any means, metal portions of the input section, when a high voltage input signal is being
applied, to avoid a risk of electric shock.
Also, it is very dangerous to apply an input voltage exceeding the range of permissible input voltages for
individual amplifier units, since application of such high voltages would cause equipment failures. Use the
equipment within the range of permissible input voltages listed below.
Input units Permissible input voltages
(in DC or in AC peak values) Range and setting conditions
100 V 0.1,0.2,0.5,1,2,5 V-FS
(in full scale)
2ch High-Resolution DC Amp Unit
2ch FFT Amp Unit
2ch High-Speed DC Amp Unit
2ch Vibration & RMS Amp Unit 500 V 10,20,50,100,200,500 V-FS
(in full scale)
2ch TC-DC Amp Unit
TC-DC Amp Unit 50 V
F/V converter Unit 100 V
2ch DC Strain Amp Unit 8 V
100 V 0.1,0.2,0.5,1,2 V-FS
(in full scale)
2ch Zero Suppression Amp Unit
500 V 5,10,20,50,100,200,500 V-FS
(in full scale)
●Warning against electric shock and prevention of mainframe damages
Always keep blank panels inserted/mounted at individual vacant slots for input amplifier units to prevent
electric shock and also to prevent the mainframe from potential damages due to foreign matter penetration.
●CAUTIONS for handling amplifier units
Observe the CAUTIONS described below when handling amplifier units.
Improper handling of the equipment could lead to operational errors or equipment failures.
1) The equipment shall be used only by those who completely know/understand the operating instructions
for the amplifier unit as well as the mainframe.
2) Storage environment and storage methods of amplifier units:
Amplifier units shall be stored in an environment of the temperature between -10 and 70 °C
Particularly during summer months, avoid storing them in the direct sunlight or in such places as
having a high possibility of extreme temperature rise (e.g., in an enclosed vehicle) for a long period of
time.
In other aspects, electronic devices used in amplifier units are easily affected by electrostatic
discharge.
Store amplifier units in places or envelopes processed against electrostatic charge/discharge, paying
attention to electrostatic charging phenomena.
3) When you want to change amplifier units in the mainframe, switch off the power source of the
mainframe and remove power and signal cables from the mainframe by all means, before changing
them. The mainframe and amplifier units might be damaged if you change amplifier units with electrical
source connected.
In addition, be careful not to touch internal electronic parts when changing amplifier units. This is
because you could damage the equipment if you touch electronic parts when your body is charged
with electrostatic charges. Do not touch any parts other than equipment panels when you change
amplifier units, since touching any parts other than panels could lead to equipment failures.
4) The amp units are carefully designed so that safety of users can be maintained. However, when
measuring high voltages, touching measurement subjects, probes, or output terminals without care
may result in electric shock.
WARNING
CAUTION

5
5) Use the original packing box and crating materials, or the equivalent at the minimum, when you
transport amplifier units. In addition, when transporting units or parts after removing them that are
incorporated with the recorder unit, cover them with antistatic bag or shock-absorbing sheets to protect
them from damage due to drop or chock.
6) It is recommended that you regularly calibrate the equipment so that the accuracy of amplifier units can
be maintained.
The high reliability of your measurement can be maintained by regularly calibrating your equipment
once a year (service available by payment).
Warranty Application
A&D is making every effort in maintaining a high quality control level for its products from the design to
shipping phases. However, in an unlikely event of finding a symptom of failures, you should check the
operational status of the equipment, the status of the electric source voltage and the connection status of
various cables, before asking A&D for repair. Consult with our sales representative for request for repair or
for regular calibration of the equipment. Please do not forget to inform the equipment type, the serial number
and the details of your failure.
The warranty period and the warranty terms are provided in the next section.
Warranty Provisions
1. Period of warranties: The period of warranties for the product is one (1) year from the time of delivery.
2. Warranties: Failures that occurred during the period of warranties are repaired free of charge in principle.
The following cases, however, are subject to your payment of repair charge:
(1) damages or failures due to incorrect handling of equipment
(2) damages or failures due to fires, earthquakes, traffic accidents or any other acts of God.
(3) damages or failures caused by repairs or modification of equipment that are carried by
someone other than A&D or any of those who are commissioned by A&D.
(4) failures due to use or storage under the environment exceeding the prescribed conditions
for the equipment.
(5) Regular calibration
(6) failures or damages that occurred during transport or transfer of equipment after delivery.
3. Range of warranties: A&D is not responsible to any equipment not manufactured by A&D.

6
Designations used in this instruction manual
The following explains the meaning of designations and symbols used in this instruction manual:
designations or
symbols meaning
If any instructions in WARNING are ignored, the ignorance could lead to one or more of
the following:
1. possibility of human deaths or serious injuries
2. high rate of occurrence of minor personal injuries or non-personal physical damages
If any instructions in CAUTION are ignored, the ignorance could lead to one or more of the
following:
1. risk of human injuries
2. possibility of non-personal physical injuries not involving human injuries
If any instructions in NOTE are ignored, the ignorance could lead to one or more of the
following:
1. possibility of mal-function of equipment
2. possibility of deletion or loss of measurement data
Descriptions under TIPS provide information on restriction or limitation for setting or other
supplementary information.
This sign indicates a page or pages to be referred to.
this product The words indicate the recorder unit, Omniace RA2000 Series (RA2300MK Ⅱor
RA2800A)
the memory This indicates the internal memory of the Omniace RA2000 Series. Measured data is
stored in “the memory” in the Multi-Recorder mode.
k (small
character)
K (capital
character)
These are units of expressing numerical values as follows:
# The small character k like in “10 kg” indicates 1000.
# The capital character K like in “4 Kbytes of data” indicates 1024.
Individual amplifier units may sometimes be indicated by using the following designations or abbreviations in
this instruction manual:
HRDC 2ch High-Resolution DC Amp Unit AP11-101
FFT 2ch FFT Amp Unit AP11-102
HSDC 2ch High-Speed DC Amp Unit AP11-103
ACST 2ch AC Strain Amp Unit AP11-104/104A
EV Event Amp Unit AP11-105
TCDC 2ch TC-DC Amp Unit AP11-106/106A
TDC TC-DC Amp Unit AP11-107
FV F/V Converter Unit AP11-108
RMS 2ch Vibration & RMS Amp Unit AP11-109
DCST 2ch DC Strain Amp Unit AP11-110
HRZS 2ch Zero Suppression Amp Unit AP11-111
Setup Screen
Examples of setup screen are for RA2300MK Ⅱ. The button positions differ
depending on the scrolling directions in the RA2800A, but the functions are the same
as those in RA2300MKⅡ.
NOTE
TIPS
! WANING
!CAUTION

7
INTRODUCTION ...............................................................................................................1
Before Using Amplifier Units: ............................................................................................... 1
Safety Considerations and Precautions - Warning and Caution..................................... 2
Warranty Application .............................................................................................................. 5
Warranty Provisions................................................................................................................ 5
Designations used in this instruction manual ................................................................... 6
1. How to Use Amp Unit ...........................................................................................1-1
1.1. 2ch High-Resolution DC Amp Unit (HRDC, Model AP11-101) ................................... 1-2
1.1.1. Connection with input signals .....................................................................................................1-2
1.1.2. How to set 2ch High-Resolution DC Amp Unit (HRDC, Model AP11-101) ...........................1-4
1.1.3. Specifications of 2ch High-Resolution DC Amp Unit (HRDC, Model AP11-101)...................1-6
1.1.4. External drawings of 2ch High-Resolution DC Amp Unit (HRDC, Model AP11-101) ........... 1-7
1.2. 2ch FFT Amp Unit (FFT, Model AP11-102)................................................................... 1-8
1.2.1. Connection with input signals .....................................................................................................1-8
1.2.2. How to set Voltage Measurement Mode of 2ch FFT Amp Unit(FFT, Model AP11-102) ...1-10
1.2.3. How to set Input Mode (Voltage measurement, Vibration sensor) .......................................1-12
1.2.4. How to set Vibration Sensor Mode of 2ch FFT Amp Unit (FFT, Model AP11-102)..........1-13
1.2.5. How to set Vibration Sensor ....................................................................................................1-14
1.2.6. Specifications of 2ch FFT Amp Unit (FFT, Model AP11-102) ..............................................1-15
1.2.7. External drawings of 2ch FFT Amp Unit (FFT, Model AP11-102) .......................................1-16
1.3. 2ch High-Speed DC Amp Unit(HSDC, Model AP11-103) ........................................... 1-17
1.3.1. Connection with input signals ...................................................................................................1-17
1.3.2. How to set 2ch High-Speed DC Amp Unit (HSDC, Model AP11-103)................................1-19
1.3.3. Specifications of 2ch High-Speed DC Amp Unit (HSDC, Model AP11-103)........................1-21
1.3.4. External drawings of 2ch High-Speed DC Amp Unit (HSDC, Model AP11-103) ................1-22
1.4. 2ch AC Strain Amp Unit (ACST, Model AP11-104A) ................................................. 1-23
1.4.1. Connection with input signals ...................................................................................................1-23
1.4.2. How to set 2ch AC Strain Amp Unit (ACST, Model AP11-104/104A).................................1-24
1.4.3. Gauge Factor Setup ..................................................................................................................1-26
1.4.4. How to read Measured Value ..................................................................................................1-27
1.4.5. Synchronization between AC Bridge Power Supply Units (RA23-143)................................. 1-29
1.4.6. Specifications of 2ch AC Strain Amp Unit (ACST, Model AP11-104/104A) ........................1-31
1.4.7. External drawings of 2ch AC Strain Amp Unit (ACST, Model AP11-104/104A) .................1-32
1.5. Event Amp Unit (EV, Model AP11-105) ....................................................................... 1-33
1.5.1. Connection with input signals ...................................................................................................1-33
1.5.2. How to set Event Amp Unit (EV, Model AP11-105)..............................................................1-34
1.5.3. Adjustment of event waveform .................................................................................................1-35
1.5.4. Specifications of Event Amp Unit (EV, Model AP11-105) .....................................................1-36
1.5.5. External drawings of Event Amp Unit (EV, Model AP11-105) ..............................................1-37
1.6. 2ch TC･DC Amp Unit (TCDC, Model AP11-106A) ...................................................... 1-38
1.6.1. Connection with input signals ...................................................................................................1-38
1.6.2. Kinds of thermocouple and the characteristics .......................................................................1-39
1.6.3. How to set 2ch TC ･ DC Amp Unit (TCDC, Model AP11-106/106A).....................................1-40
1.6.4. Specifications of 2ch TC ･ DC Amp Unit (TCDC, Model AP11-106/106A) ............................1-42
1.6.5. External drawings of 2ch TC ･ DC Amp Unit (TCDC, Model AP11-106/106A) .....................1-43
1.7. TC･DC Amp Unit (TDC, Model AP11-107)................................................................... 1-44
1.7.1. Connection with input signals ...................................................................................................1-44
1.7.2. Kinds of thermocouple and the characteristics .......................................................................1-45
1.7.3. How to set TC ･ DC Amp Unit (TDC, Model AP11-107) ........................................................1-46
1.7.4. Specifications of TC ･ DC Amp Unit (TDC, Model AP11-107) ................................................1-48

8
1.7.5. External drawings of TC
･ DC Amp Unit (TDC, Model AP11-107) .........................................1-49
1.8. F/V Converter Unit (FV, Model AP11-108) ...................................................................1-50
1.8.1. Connection with input signals ...................................................................................................1-50
1.8.2. How to set F/V Converter Unit (FV, Model AP11-108) .........................................................1-51
1.8.3. Ripple ratio and response time ................................................................................................1-53
1.8.4. Specifications of F/V Converter Unit (FV, Model AP11-108).................................................1-54
1.8.5. External drawings of F/V Converter Unit (FV, Model AP11-108)..........................................1-55
1.9. 2ch Vibration & RMS Amp Unit (RMS, Model AP11-109) .........................................1-56
1.9.1. Connection with input signals ...................................................................................................1-56
1.9.2. How to set Voltage Measurement Mode of 2ch Vibration & RMS Amp Unit
(RMS, Model AP11-109)..........................................................................................................1-58
1.9.3. How to set Input Mode (Voltage measurement/RMS converter/Vibration sensor
/Vibration,RMS output) ...............................................................................................................1-60
1.9.4. How to set Vibration Sensor Mode of 2ch Vibration & RMS Amp Unit
(RMS, Model AP11-109)..........................................................................................................1-61
1.9.5. How to set Vibration Sensor.....................................................................................................1-62
1.9.6. Specifications of 2ch Vibration & RMS Amp Unit (RMS, Model AP11-109)........................1-63
1.9.7. External drawings of 2ch Vibration & RMS Amp Unit (RMS, Model AP11-109) ................1-64
1.10. 2ch DC Strain Amp Unit (DCST, Model AP11-110)..................................................1-65
1.10.1. Connection with input signals .................................................................................................1-65
1.10.2. How to set 2ch DC Strain Amp Unit (DCST, Model AP11-110) ........................................1-66
1.10.3. Gauge Factor Setup ................................................................................................................1-68
1.10.4. Specifications of 2ch DC Strain Amp Unit (DCST, Model AP11-110)................................1-69
1.10.5. External drawings of 2ch DC Strain Amp Unit (DCST, Model AP11-110) ........................1-70
1.11. 2ch Zero Suppression Amp Unit (HRZS, Model AP11-111) ....................................1-71
1.11.1. Connection with input signals .................................................................................................1-71
1.11.2. How to set 2ch Zero Suppression Amp Unit (HRZS, Model AP11-111) ...........................1-72
1.11.3. Specifications of 2ch Zero Suppression Amp Unit (HRZS, Model AP11-111)...................1-75
1.11.4. External drawings of 2ch Zero Suppression Amp Unit ........................................................1-76
2. Common Settings for Amp Details Screen ....................................................... 2-1
2.1. ON/OFF/GND, Batch, and Initialization...........................................................................2-2
2.2. Initialization of Amp..........................................................................................................2-4
2.2.1. Initialization in Standard Screen..................................................................................................2-4
2.2.2. Amp Details – Initialization in Physical Unit Conversion Screen.............................................2-7
2.2.3. Amp Details – Initialization in Expansion Screen .....................................................................2-7
3. Expansion Settings ................................................................................................ 3-1
3.1. Change of Base Line Width of Printing Waveform .....................................................3-2
4. Physical Unit Conversion - Changing Printing/Display Range ..................... 4-1
4.1. Overview of Physical Unit Conversion ..........................................................................4-2
4.2. How to Convert Physical Units.......................................................................................4-3
4.3. Printing/Display Range......................................................................................................4-4
5. Procedure for Changing Amplifier Units............................................................ 5-1
5.1. Example of Replacement..................................................................................................5-2

1. How to Use Amp Unit

1. How to Use Amp Unit (2ch High-Resolution DC Amp Unit)
AMP for RA2000 Series (1WMPD4003505)
1-2
1.1. 2ch High-Resolution DC Amp Unit (HRDC, Model AP11-101)
The 2ch High-Resolution DC Amp Unit converts input signal voltages into digital data of 16 bits with
high resolution. The unit has a capability of conversion time of 10 s and incorporates two (2) channels.
The two channels are insulated to each other within the unit.
1.1.1. Connection with input signals
Use by all means insulated BNC cables (optional item: input signal cables 0311-5175,
with a BNC connector and test clips, of 2 m long) for input connection.
The outer shells of metal type BNC connectors have the negative (-) polarity potential of
the input signal. Therefore, you would suffer an electric shock by touching the outer shell
while the cable is connected to a signal source. Thus, note that it is very dangerous for
you to touch it.
If you need to use a BNC connector of the metal type due to some unavoidable
circumstances, confirm that the common mode input voltage is within the range of ±42 V
(in DC or in AC peak value) through carrying out appropriate examination of the signal
source.
Also, some metal type BNC cables may cause mating problems. Insulated BNC sockets
may crack if they are forcibly connected, so please do not use what cannot be mated
smoothly.
Please pay attention to the following points when you want to record low level signals:
# Do not use unnecessarily long cables for input connection
# Use shielded cables for input connection to avoid electrostatic noise
Please keep the signal source impedance as low as possible, i.e., less than 100 Ω.
The lower the signal source impedance is, the higher the quality of measurement record is.
ＮＯＴＥ
100V(0.1-5V)
500V(10-500V)
PKMA
X
42V
PK
MA
X
AP11
-
101
High Resolution
DC AMP
INPUT
+
-
!
A
B
(＋)
(－)
(＋)
(－)
Signal source
High impedance side
Low impedance side
High impedance side
Low impedance side
WARNING

1. How to Use Amp Unit (2ch High-Resolution DC Amp Unit)
AMP for RA2000 Series (1WMPD4003505)
1-3
Input Signals
Permissible input voltages
If a voltage higher than the rated voltage is input, this unit may be damaged due to
internal damage such as component breakdown. Make sure that the input voltage does
not exceed the following permissible input voltage for each input range.
Sensitivity ranges (V in FS) 0.1, 0.2, 0.5, 1, 2, 5 10, 20, 50, 100, 200, 500
Permissible input voltages (V) 100 V 500 V
Input impedance
The input impedance is approximately one (1) M. However, note that the input
impedance will be lowered to approximately 15 k, when the input voltage becomes
beyond 8 V for the sensitivity range of 0.1 - 5 V-FS (full-scale) in the DC coupling mode.
Permissible common mode input voltages (CMV)
Use the insulated BNC cable, an optional item. In this case, confirm that the permissible
common mode input voltage is no more than 300 V in DC or in AC peak value.
The sample speed must be set at 10μs steps, otherwise the signal waveform cannot be
obtained correctly.
Example: 5 μs or 11 μs, etc. makes the waveform distort.
Use cables with the insulation sheath of no less than 2 kV of withstand voltages.
Do not apply voltages exceeding the permissible common mode input voltage, since
application of such voltages would lead to malfunctions or failures of equipment. Also,
note that recorded waveforms may involve noise components due to degradation of
common mode rejection ratio (CMRR), when noise-like impulsive common mode
voltages are applied.
Use the equipment through keeping the input voltage within the range of -30V - +30V
including the DC component, when the sensitivity range is 0.1 - 5 V-FS in the AC
coupling mode.
Note that correct measurement cannot be expected when the input voltage exceeds the
voltage range mentioned above.
CAUTION
ＮＯＴＥ
CAUTION
CAUTION
ＮＯＴＥ
ＮＯＴＥ
ＮＯＴＥ

1. How to Use Amp Unit (2ch High-Resolution DC Amp Unit)
AMP for RA2000 Series (1WMPD4003505)
1-4
1.1.2. How to set 2ch High-Resolution DC Amp Unit (HRDC, Model
AP11-101)
This section covers operations in the Amp Basic screen that appears when the Amp button on the
operation panel is pressed and the Amp Details screen that appears when a channel button is
pressed.
1) Basics - Channel
The channel number, input Amp Unit type, and waveform color are indicated in this portion.
Pressing this button displays the Amp Details screen.
2) Basics - Input
Input mode can be selected. Pressing this button permits switching among ON, GND, and
OFF.
3) Basics - Position
This button is used to set the zero position. Pressing this button changes the button
appearance. The setup can be made with the jog dial.
4) Basics - Range
This button is used to set the range. Pressing this button changes the button appearance. The
setup can be made with the jog dial.
5) Basics – Lo V
The LED lights if the high sensitivity range can be permitted.
6) Basics - Information
This portion indicates settings that are unable to be set on this screen. When changing the
settings, make the settings in the Amp Details screen.
Fc: Filter setting
Couple: Input coupling setting
1) Channel
6) Info
4) Range
3) Position
2) Input
10) Range Indication
8) Input Coupling
9)
A
uto Range
12) Range
13) Permission of
High-sensitivity
setting
11) Wide/Normal
14) Filte
r
7) Position
5) Lo V

1. How to Use Amp Unit (2ch High-Resolution DC Amp Unit)
AMP for RA2000 Series (1WMPD4003505)
1-5
7) Details - Position
The zero position (base line) is set with a button. The zero position means the waveform
display position at 0V input (input short). The base line can be set in 5% steps in reference to
100% as the full scale. Also, you can set it with the jog dial by pressing the jog button, or set it
from the numeric input window by pressing the window button. And the position change is
available through the setup of Physical Unit Conversion or Printing/Display Range. For more
information, see Chapter 4. Physical Unit Conversion – Changing Printing/Display Range.
8) Details – Input Coupling
The input coupling is set by pressing the AC coupling button or DC coupling button.
When the AC coupling button is pressed, a capacitor is connected to the input terminal.
The DC component can be eliminated, which enables the measurement of alternating
voltage.
9) Details - Auto range
The range is automatically adjusted to the input signal.
10) Details - Range indication
The value of the current display range is displayed.
"#" is displayed when selecting the "Wide" range or changing "Printing / Display Range". After
that, if you select the "Normal" range, the setting of "Printing / Display Range" is cleared and
"#" disappears.
Also, when checking "Set EU." on the ”User Conv.” Tab and setting to use physical unit
conversion, the full scale converted value will be displayed with *.
For more information on physical unit conversion and printing / display range setting, see
Chapter 4. Physical Unit Conversion - Changing Printing / Display Range.
11) Details - Wide/Normal
Wide: Entire measuring range is displayed.
Normal: Half of the measuring range is displayed (Default).
12) Details - Range
Range can be directly set.
When the measurement range is changed, the waveform clip range is cleared to the
default value corresponding to the new range.
Example: During expansion of the waveform in the waveform clip range between +40 and
-40 at 100 V, if the range is set to 100 V again, the waveform clip range is set to between
+50 to -50 as the default. (Enlarged display is cancelled.)
Pay attention to the permissible input voltage when setting the range.
See Permissible input voltages in “Input Signals”.
13) Details - Permission of high sensitivity settings
Settings of the high-sensitive range (5 V to 100 mV) can be prohibited/permitted.
When using the high-sensitivity range, check the check box.
When the high-sensitivity range is not used, prohibition of the high-sensitivity range without
checking the box is recommended for safety.
14) Details - Filter
This button is used to set the low-pass filter.
TIPS
CAUTION
TIPS

1. How to Use Amp Unit (2ch High-Resolution DC Amp Unit)
AMP for RA2000 Series (1WMPD4003505)
1-6
1.1.3. Specifications of 2ch High-Resolution DC Amp Unit (HRDC, Model
AP11-101)
Number of channels 2 channels (chs)/unit
Input mode Unbalanced input (insulation: between channels (ch) inside the unit, between
each ch and the cabinet)
Input coupling modes AC coupling and DC coupling
Input range
0.1, 0.2, 0.5, 1, 2 and 5 V-FS (±30 V or less at AC coupling)
10, 20, 50, 100, 200 and 500 V-FS
For all ranges (i.e., 0.1 - 500 V-FS), Wide-range is available.
Sensitivity and
Accuracy
Accuracy Within 0.3%-FS
* Within
 0.8%-FS for 500 V-FS
Offset accuracy Within 0.3%-FS
* at 23
 C of environment temperature of mainframe operation
Input impedance No less than 1 MΩ
Permissible input
voltage
500V (DC or AC peak value)
*
 100V (DC or AC peak value) for input ranges of 0.1 - 5 V-FS
Permissible common
mode
input voltage (CMV)
42 V (DC or AC peak value) for an amplifier unit only
* 300 VAC when an insulated BNC cable (signal cable 0311-5175) is used
Common mode
rejection
ratio (CMRR)
No less than 80 dB for frequencies DC - 60 Hz
Frequency
characteristics
For DC coupling:
Within the range of +0.5 dB and -3 dB for frequency range of DC - 50 kHz
For AC coupling:
Within the range of +0.5 dB and -3 dB for frequency range of 0.3 Hz - 50 kHz
Linearity Within 0.1%-FS
Low pass filter Two-pole Bessel type: 30Hz, 300Hz, 3kHz and OFF
Attenuation characteristics: -12 dB/oct. approximately
Temperature stability
characteristics
Zero point: within 0.02%-FS /C
Range: within 0.01%-FS /C
Resolution 16 bits
Conversion time 10 s max.
A/D conversion
characteristics Conversion method Serial comparison method
Input connector Insulated BNC type
Withstand voltage 1.5 kV AC for one minute between input terminal and ground, and between
channels.
S/N ratio -52 dB or greater (when set at Wide Range)
Mass About 230 g

1. How to Use Amp Unit (2ch High-Resolution DC Amp Unit)
AMP for RA2000 Series (1WMPD4003505)
1-7
1.1.4. External drawings of 2ch High-Resolution DC Amp Unit (HRDC, Model
AP11-101)

1. How to Use Amp Unit (2ch FFT Amp Unit)
AMP for RA2000 Series (1WMPD4003505) 1-8
1.2. 2ch FFT Amp Unit (FFT, Model AP11-102)
The 2ch FFT Amp Unit is used to FFT-transform output voltages of piezoelectric acceleration sensors
built-in the amplifier or other piezoelectric acceleration sensors (used together with charge converters),
or other input voltages. They are high-resolution DC amplifier units with anti-aliasing filters built-in.
The units have a capability of conversion time of 10 μs and incorporate two (2) channels per unit, and
the two channels are insulated to each other within the unit.
1.2.1. Connection with input signals
Use by all means insulated BNC cables (optional item: input signal cables 0311-5175,
The outer shells of metal type BNC connectors have the negative (-) polarity potential of
the input signal. Therefore, you would suffer an electric shock by touching the outer shell
while the cable is connected to a signal source. Thus, note that it is very dangerous for
you to touch it.
If you need to use a BNC connector of the metal type due to some unavoidable
circumstances, confirm that the common mode input voltage is within the range of ±42 V
(in DC or in AC peak value) through carrying out appropriate examination of the signal
source.
Also, some metal type BNC cables may cause mating problems. Insulated BNC sockets
may crack if they are forcibly connected, so please do not use what cannot be mated
smoothly.
Please pay attention to the following points when you want to record low level signals:
# Do not use unnecessarily long cables for input connection
# Use shielded cables for input connection to avoid electrostatic noise
Please keep the signal source impedance as low as possible, i.e., less than 100 Ω.
The lower the signal source impedance, the higher the quality of measurement records.
42V
PK
MA
X
-
Si
g
nal source
100V(0.1-5V)
500V(10-500V)
PKMA
X
AP11
-
102
FFT AMP
INPUT
+
!
A
B
(＋)
(－)
(＋)
(－)
High impedance side
Low impedance side
High impedance side
Low impedance side
ＮＯＴＥ
WARNING
ＮＯＴＥ