YOKOGAWA CA700-01 User manual

User’s
Manual CA700
Pressure Calibrator
User’s Manual
IM CA700-01EN
4th Edition

i
IM CA700-01EN
Thank you for purchasing the CA700 pressure calibrator. This user’s manual explains the features,
operating procedures, and handling precautions of the CA700. To ensure correct use, please read this
manual thoroughly before beginning operation.
After reading this manual, keep it in a safe place. The following manuals, including this one, are
provided as manuals for the CA700. Please read all manuals.
Manual Title Manual No. Description
CA700
Pressure Calibrator
User’s Manual
IM CA700-01EN This manual. The manual explains all the
CA700 features.
It is included in the accompanying CD.
CA700
Pressure Calibrator
Getting Started Guide
IM CA700-02EN Provided as a printed manual. This guide
explains the handling precautions, basic
operations, and specifications of the CA700.
Notes
• The contents of this manual are subject to change without prior notice as a result of continuing
improvements to the instrument’s performance and functionality. The figures given in this manual
may differ from those that actually appear on your screen.
• Every effort has been made in the preparation of this manual to ensure the accuracy of its
contents. However, should you have any questions or find any errors, please contact your nearest
YOKOGAWA dealer.
• Copying or reproducing all or any part of the contents of this manual without the permission of
YOKOGAWA is strictly prohibited.
Trademarks
• Microsoft, Internet Explorer, Windows, Windows 7, Windows 8, and Windows 10 are either
registered trademarks or trademarks of Microsoft Corporation in the United States and/or other
countries.
• Adobe, Acrobat, and PostScript are either registered trademarks or trademarks of Adobe Systems
Incorporated.
• HART is a registered trademark of HART Communication Foundation.
• In this manual, the TM and ® symbols do not accompany their respective registered trademark or
trademark names.
• Other company and product names are registered trademarks or trademarks of their respective
holders.
4th Edition: October 2017 (YMI)
All Rights Reserved, Copyright © 2013 Yokogawa Test & Measurement Corporation

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Revisions
• 1st Edition: August 2013
• 2nd Edition: September 2015
• 3rd Edition: June 2017
• 4th Edition:October 2017

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Conventions Used in This Manual
Unit
k: Denotes 1000. Example: 100 kS/s (sample rate)
K: Denotes 1024. Example: 720 KB (file size)
Displayed Characters
Bold characters in procedural explanations are used to indicate panel keys and soft keys that are used
in the procedure and menu items that appear on the screen.
Notes
The notes and cautions in this manual are categorized using the following symbols.
Improper handling or use can lead to injury to the user or damage to the
instrument. This symbol appears on the instrument to indicate that the user must
refer to the user’s manual for special instructions. The same symbol appears in
the corresponding place in the user’s manual to identify those instructions. In the
user’s manual, the symbol is used in conjunction with the word “WARNING” or
“CAUTION.”
WARNING Calls attention to actions or conditions that could cause serious or fatal injury to
the user, and precautions that can be taken to prevent such occurrences.
CAUTION Calls attention to actions or conditions that could cause light injury to the user
or cause damage to the instrument or user’s data, and precautions that can be
taken to prevent such occurrences.
Note
Calls attention to information that is important for the proper operation of the
instrument.
French
Une manipulation ou une utilisation incorrectes risquent de blesser l’utilisateur
ou d’endommager l’instrument. Ce symbole apparaît sur l’instrument pour
indiquer à l’utilisateur qu’il doit se reporter au manuel de l’utilisateur afin d’y
lire les instructions spécifiques correspondantes. Ce même symbole apparaît
à la section correspondante du manuel de l’utilisateur pour signaler lesdites
instructions. Dans le manuel de l’utilisateur, ce symbole est accompagné des
termes AVERTISSEMENT et ATTENTION.
AVERTISSEMENT Attire l’attention sur des gestes ou des conditions susceptibles
de provoquer des blessures graves (voire mortelles), et sur les
précautions de sécurité pouvant prévenir de tels accidents.
ATTENTION
Attire l’attention sur des gestes ou des conditions susceptibles de
provoquer des blessures légères ou d’endommager l’instrument
ou les données de l’utilisateur, et sur les précautions de sécurité
susceptibles de prévenir de tels accidents.

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Contents
Conventions Used in This Manual ................................................................................................... iii
Chapter 1 Features
1.1 System Configuration ....................................................................................................... 1-1
1.2 Pressure, DC Current, and DC Voltage Source and Measurement Functions................. 1-2
1.3 Calibration Feature........................................................................................................... 1-5
1.4 Saving Data...................................................................................................................... 1-8
1.5 Communication Feature ................................................................................................. 1-10
1.6 USB Feature....................................................................................................................1-11
1.7 Other Features ............................................................................................................... 1-12
Chapter 2 Source and Measure
2.1 Measuring Pressure ......................................................................................................... 2-1
2.2 Measuring Leak Rates ..................................................................................................... 2-8
2.3 Generating DC Current and DC Voltage .........................................................................2-11
2.4 Measuring DC Current and DC Voltage ......................................................................... 2-18
Chapter 3 Calibrating the Pressure Transmitter
3.1 Connecting to a Pressure Transmitter or Pressure Switch............................................... 3-1
3.2 Select the Calibration Procedure...................................................................................... 3-3
3.3 Setting the Device Information and the Calibration Conditions of the Pressure
Transmitter ....................................................................................................................... 3-4
3.4 Calibrating the Pressure Transmitter...............................................................................3-11
3.5 Setting the Calibration Conditions of the Pressure Switch ............................................. 3-16
3.6 Calibrating a Pressure Switch ........................................................................................ 3-18
Chapter 4 Saving and Deleting Data
4.1 Setting How to Save Measured Data ............................................................................... 4-1
4.2 Deleting Files.................................................................................................................... 4-4
4.3 Copying Files to a USB Storage Device........................................................................... 4-6
4.4 Formatting Internal Memory ............................................................................................. 4-9
Chapter 5 Remote Control
5.1 Connecting the CA700 to Your PC................................................................................... 5-1
5.2 Setting the USB Parameters ............................................................................................ 5-2
5.3 List of Commands ............................................................................................................ 5-4
5.4 Commands ....................................................................................................................... 5-5
5.5 Status Byte Format......................................................................................................... 5-18
5.6 Connecting the CA700 to Your PC as a USB Storage Device ....................................... 5-19
Chapter 6 Other Settings
6.1 Setting the Auto Power-Off Feature and LCD Contrast and
Turning the LCD Backlight On and Off ............................................................................. 6-1
6.2 Setting the HART Resistance and the Number of Pressure Display Digits...................... 6-3
6.3 Setting the Decimal Point and the Separator for CSV Data ............................................. 6-5
6.4 Holding Displayed Values and Displaying Min/Max Values.............................................. 6-7
6.5 Reference Value and Relative Display ............................................................................. 6-8
6.6 Setting the Languge ......................................................................................................... 6-9
6.7 Upgrading the Firmware Version of the Pressure Sensor .............................................. 6-10

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Contents
Chapter 7 Adjusting the CA700
7.1 Adjusting the Source Function ......................................................................................... 7-1
7.2 Adjusting the Measurement Function............................................................................... 7-4
Index

1-1
Features
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Chapter 1 Features
1.1 System Configuration
System Configuration
Pressure Transmitter
/Pressure Switch
DC voltage or
DC current
PC
USB storage
USB interface
USB Peripheral
interface
Measured data
Pressure
CA700
Pressure device
External pressure se sor

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1.2 Pressure, DC Current, and DC Voltage Source
and Measurement Functions
Pressure Measurement
Liquid and gas pressure can be measured.
Gauge Pressure Measurement and Absolute Pressure
Measurement
There are two methods to measuring pressure: gauge pressure measurement, which takes
atmospheric pressure to be zero, and absolute pressure measurement, which takes vacuum to be
zero.
The CA700 comes in three types depending on the gauge pressure that can be measured.
CA700-01 –80 kPa to 200 kPa
CA700-02 –80 kPa to 1000 kPa
CA700-03 –80 kPa to 3500 kPa
Leak Rate Measurement
You can apply pressure to the device under measurement and measure the pressure over a given
period to examine the pressure change caused by leakage.
The display shows the pressure at the start of measurement, the pressure at the end of measurement,
the amount of pressure change, and the amount of pressure change per unit time (leak rate).
Zero Calibration
When the pressure sensor inside the CA700 is used to make measurements, measured values may
be affected by the measuring environment and orientation of the CA700. Zero calibration (ZERO CAL)
refers to the act of compensating for these effects.
A sensor inside the CA700 detects how much the CA700 is tilted. If the orientation is changed after a
zero calibration is performed, the “ZERO CAL” indicator blinks to alert the user.
Combination with DC Current and DC Voltage Source and
Measurement
DC current and DC voltage can be generated and measured simultaneously while pressure is being
measured. However, during leak rate measurement, only leak rate measurement and generation are
possible.
The possible combinations are (1) pressure measurement and DC current generation, (2) pressure
measurement and DC voltage generation, (3) pressure measurement and DC current measurement,
and (4) pressure measurement and DC voltage measurement. The transmitter input pressure and
transmitter output can be measured simultaneously.
Averaging
The CA700 can take a moving average of the measured values and display the results. If averaging is
on, relative display (RELATIVE) and max/min display (MIN/MAX) use averaged values.
Scaling
By assigning scale values to the upper and lower limits of the span, you can linearly scale measured
values and display the scaled results. If scaling is enabled, you can assign an appropriate unit.
Alarm
When a measured value exceeds the specified range, the value will blink, and an alarm mark will
appear. If the relative display feature (RELATIVE) is enabled, the CA700 uses the measured values,
not the relative values, to make this decision. This feature is not available for leak rate measurement.

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Percentage Display
By taking the lower limit of the specified span to be 0% and the upper limit to be 100%, the CA700
displays the measured values as percentages along with the measured values themselves.
Relative Display (RELATIVE)
The CA700 displays the difference between the measured values and the specified reference value
(measured value – reference value). You can set the reference value to any value that you choose or
the value that exists when you press RELATIVE.
Hold
The CA700 holds the measurement display.
Min/Max Display
The CA700 can display the minimum and maximum measured values.
Hysteresis Warning (HYS)
If the external pressure sensor in use receives the pressure exceeding its limit value, this may affect
measurement for a while even when the pressure falls below the limit value.
In the CA700, if the pressure input to the external pressure sensor exceeds the limit value, "HYS"
appears on the screen.
Even when the pressure falls below the limit value, HYS continues to appear for a period of time. This
period depends on the range and input pressure. Wait for HYS to disappear, and then use the external
pressure sensor.
DC Current and DC Voltage Source
The CA700 can generate DC current between 0 to 20 mA and DC voltage between 0 to 5 V. It can
generate a specific DC current or voltage or sweep the current or voltage within a specific range.
Sweeping
There are two sweep modes: step and linear.
Step sweep
The CA700 divides the specified range of current or voltage into 2 to 10 equal levels and outputs
them.
Linear sweep
The CA700 varies the current or voltage output linearly within the specified range.
Simulation
The CA700 can absorb a specified amount of current from a distributor or other external voltage
source through the high terminal. This enables you to use the CA700 as a two-wire transmitter
simulator for loop and other tests.
CA700
SOURCE
MEASURE
V mA mA/V
COM
4 to 20 mA
24 VDC
+
–
Distributor Output 1 to 5 V
1.2 Pressure, DC Current, and DC Voltage Source and Measurement Functions

1-4 IM CA700-01EN
DC Current and DC Voltage Measurement
The available DC current measurement ranges are 20 mA and 100 mA, and the available DC voltage
measurement ranges are 5 V and 50 V.
Like pressure measurement, the following features are also available.
• Averaging
• Scaling
• Alarm
• Percentage display
• Relative display
• Hold
• Min/Max display
mA Loop
The CA700 can measure the current that flows when a 24 VDC constant voltage is applied. This can
be used in transmitter loop tests.
CA700
SOURCE
MEASURE
V mA mA/V
COM
4 to 20 mA
24 VDC
+
–
Distributor
Two-wire transmitter
+
–LOOP POWER
1.2 Pressure, DC Current, and DC Voltage Source and Measurement Functions

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1.3 Calibration Feature
The calibration feature is useful for calibrating and adjusting pressure transmitters and pressure
switches.
Transmitter Calibration
The CA700 can generate (source) an input signal to a pressure transmitter and measure the output
from the transmitter. If the transmitter input is pressure, you can use a pressure pump to apply the
pressure to the transmitter and monitor the pressure from the pressure pump on the CA700.
The following source and measurement combinations are available.
Measure Source
Pressure (P)
Pressure (EXT P)
Current (mA)
mA loop (mA LOOP)
Voltage (V)
Current (mA) Pressure (P)1
Pressure (EXT P)1
mA Loop (mA LOOP)
Voltage (V)
1 The CA700 cannot generate pressure. It monitors the input to the calibration target.
Calibration Procedure
You can save up to twenty calibration procedures.
You can set the pressure unit, averaging, scaling, calibration range (0 and 100%), tolerance (%), the
number of calibration points, and the calibration point slope.
Averaging and Scaling
Averaging and scaling are the same as with normal measurement.
Calibration Range
Set the boundaries (0% and 100%) of the range to calibrate in relation to the transmitter input and
output.
The CA700 divides the calibration range by the number of calibration points to determine the
reference value of the transmitter input and output at each calibration point.
Tolerance
The tolerance is the difference between the transmitter output and the reference value that is
determined from the calibration range and the number of calibration points at each calibration
point. The CA700 indicates pass or fail depending on whether the transmitter output is within the
tolerance.
Number of Calibration Points
This is the number of calibration points within the calibration range. This number and the calibration
range determine the calibration points. If this number is set to 1, calibration will be performed at 0%
or 100% (0% if the calibration point slope is up or up/down; 100% if it is down).
Calibration Point Slope
You can set whether to calibrate from 0% to 100% or from 100% to 0% or from 0% to 100% to 0%
in a round-trip fashion. When calibrating in a round-trip fashion, the number of calibration points is (the
specified number of calibration points × 2 – 1).

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Saving Calibration Data
You can save calibration data to a file. If you adjust a transmitter, the data before and after the
adjustment can be saved to files with the following file names.
File Name
The name of the file for data before adjustment is MSxxF_y.CSV where
MS: Fixed (measurement/source file)
xx: Calibration group number (00 to 99)
F: Fixed (data before adjustment)
y: File number (0 to 9)
The name of the file for data after adjustment is MSxxL_y.CSV where
MS: Fixed (measurement/source file)
xx: Calibration group number (00 to 99)
L: Fixed (data after adjustment)
y: File number (0 to 9)
The calibration group number remains the same as long as the calibration target information
or calibration procedure remain unchanged. Therefore, the calibration data files of the same
transmitter before and after adjustment will have the same calibration group number.
Saved Information
The following information is saved in a calibration data file.
• Instrument information
• Calibration procedure information
• Calibration date
• CA700 serial number
• Calibration result
Pressure Switch Calibration
In the calibration procedure in “Transmitter Calibration,” if you select pressure switch (P SWITCH, EXT
SWITCH) for measurement, you can calibrate pressure switches.
The CA700 measures the pressure required for the switch to open and close, the difference between
the open and close pressures, and the resistance when the switch is closed.
The CA700 can calibrate mechanical pressure switches. It cannot be used to calibrate open-collector-
contact, voltage-output, or current-output pressure switches.
Saving Calibration Data
Like transmitter calibration, the calibration results can be saved.
File Name
The name of the file for data before adjustment is SWxxF_y.CSV where
SW: Fixed (pressure switch test data file)
xx: Calibration group number (00 to 99)
F: Fixed (data before adjustment)
y: File number (0 to 9)
The name of the file for data after adjustment is SWxxL_y.CSV where
SW: Fixed (pressure switch test data file)
xx: Calibration group number (00 to 99)
L: Fixed (data after adjustment)
y: File number (0 to 9)
1.3 Calibration Feature

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Saved Information
The following information is saved in a calibration data file.
• Instrument information
• Calibration procedure information
• Calibration date
• CA700 serial number
• Calibration result
The following types of data are saved as calibration results.
• Pressure when the pressure switch opened
• Pressure when the pressure switch closed
• Difference between the pressure when the pressure switch opened and that when the pressure
switch is closed
• Resistance when the pressure switch closed
1.3 Calibration Feature

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1.4 Saving Data
Pressure, current, and voltage measurement data, leak rate measurement data, and transmitter or
pressure switch calibration data can be saved to CSV files.
Saving Pressure, Current, and Voltage Measurement Data
There are two ways to save measured values.
Save
Measured values are appended to a file each time you press the Save function key. The file name
is SAVEXX.CSV where
SAVE: A common name given to files saved with the save function
XX: Sequence number (00 to 99)
Data is added to the same file until any of the following conditions is met.
• When a setting is changed
• When the voltage measurement range is changed
• When the number of save data points exceeds 2000
• When the power is turned off
Logging
The specified number of data points are saved at a preset sampling interval. The file name is
LOGXX.CSV. A file is created each time logging ends.
LOG: A common name given to files saved with the logging function
XX: Sequence number (00 to 99)
For Leak Rate Measurement
For leak rate measurement, measured data is added to the file each time a leak test finishes. The
file name is LEAKXX.CSV where
LEAK: A common name given to files saved with the leak function
XX: Sequence number (00 to 99)
Data is added to the same file until any of the following conditions is met.
• When a setting is changed
• When you exit from a leak test
• When the power is turned off
Pressure Transmitter and Pressure Switch Calibration Data
Calibration data before and after transmitter adjustment is saved to files with identifiable names.
Calibration data is added to the files every time a calibration is performed at the calibration points.
The file names are as follows:
Calibration data file before adjustment: MSxxF_y.CSV, SWxxF_y.CSV
Calibration data file after adjustment: MSxxL_y.CSV, SWxxL_y.CSV
MS: Fixed (measurement/source file)
SW: Fixed (pressure switch test data file)
xx: Calibration group number (00 to 99)
F: Fixed (data before adjustment)
L: Fixed (data after adjustment)
y: File number (0 to 9)
The calibration group number remains the same as long as the calibration target information or
calibration procedure remain unchanged. Therefore, the calibration data files of the same transmitter
before and after adjustment will have the same calibration group number.

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Copying and Deleting Data
You can copy data in the CA700 to a USB storage device.
You can also delete data in the CA700.
1.4 Saving Data

1-10 IM CA700-01EN
1.5 Communication Feature
You can connect the CA700 to a PC through the USB port.
Depending on the USB settings, you can remotely control the CA700 from a PC or use the CA700 as
a USB device on the PC.
Remote Control
You can use dedicated communication commands to remotely control the CA700 from a PC.
The following operations can be controlled remotely.
• CA700 configuration (limited features)
• CA700 configuration retrieval (limited features)
• Measured data retrieval
• CA700 calibration execution
USB Storage
You can use the CA700 as USB storage device from a PC.
From a PC, you can access the CA700 internal memory and read the data.

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1.6 USB Feature
Host Feature
You can connect a USB storage device to the CA700 and copy the measured data in the CA700 to the
USB storage device.
Only USB memory devices can be connected as USB storage devices. Hard disks and other media
cannot be used.
PC Connection Feature
You can connect the CA700 to a PC and use the CA700 as a USB storage device on the PC or use
dedicated commands to remotely control the CA700 from the PC.
When the CA700 is being used as a USB storage device on the PC, measured data cannot be saved
on the CA700.

1-12 IM CA700-01EN
1.7 Other Features
Backlight On/Off
To reduce battery consumption, you can turn off the LCD backlight.
Auto Power-off
When the auto power-off feature is enabled, the CA700 automatically turns off if there is no user
interaction for about 60 minutes. Auto power-off is automatically disabled (the icon also disappears)
while the CA700 is logging or performing min/max measurement.
Hold Feature
The hold feature holds the screen. While the screen is held, you can only use the HOLD, backlight,
and power on/off keys and the Save/Logging function key.
Min/max measurement and alarm features continue even while the screen is held.
If you save data with the save feature while the screen is held, the held data (the data displayed on the
screen) is saved.
LCD Contrast
You can set the LCD contrast to any of the four available levels. Change the contrast depending on the
environment that you are using the CA700 in.
Decimal Point Display
You can set the decimal point to a period or comma.
CSV Data Separator
You can set the CSV data separator to comma, semicolon, or tab.
Language
You can set the language displayed on the screen to English, Japanese, Chinese, or Korean.
Firmware Upgrade
You can upgrade the firmware versions of the internal and external pressure sensors of the CA700.

Source and Measure
Chapter 2 Source and Measure
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2.1 Measuring Pressure
Procedure
WARNING
To prevent injury to the user and damage to devices caused by incorrect connection or
pressure leakage, be sure to connect tubing correctly to the CA700 pressure input port by
following the instructions in the Getting Started Guide, IM CA700-02EN.
Selecting the Item under Measurement
1. Fromthetopmenu,usethe▲or▼keytoselectMeasure and Source, and press ENTER.
The source/measure screen appears.
Display1
Display2
2. Press
Setting (F5).
Display1 Setting and Display2 Setting appear on the function menu.
Function menu
3. Press
Display1 Setting (F1).
The pressure measurement setting screen appears.
Note
To confirm the settings, be sure to press Setting Done (F5).
4. Usethe▲or▼keytoselectFunction, and press ENTER.
The measurement function options are displayed.