YOKOGAWA CA500, CA550 User Manual

User ’s
Manual

CA500, CA550
Multifunction Process
Calibrator

IM CA500-01EN

1st Edition

Thank you for purchasing the CA500/CA550 Multifunction Process Calibrator. This user’s manual

explains the features, operating procedures, and handling precautions of the CA500 and CA550. To

ensure correct use, please read this manual thoroughly before operation.

After reading this manual, keep it in a safe place. The following manuals, including this one, are

provided as manuals for the CA500 and CA550. Please read all manuals.

Manual Title Manual No. Description

CA500, CA550
Multifunction Process Calibrator
User’s Manual
CA500, CA550
Multifunction Process Calibrator
Getting Started Guide

CA500 Multifunction Process Calibrator

Userʼs Manual

“전기용품 및 생활용품 안전관리법”
관련일차전지에 대한 대응

IM CA500-01EN This document. The manual explains all

the instrument features.
It is included in the accompanying CD.

IM CA500-02EN Provided as a printed manual. This

guide explains the handling precautions,
basic operations, and specifications of
the instrument.

IM CA500-92Z1 Document for China.

PIM 902-01KO Document for Korea.

The “EN”, “Z1”, and “KO” in the manual numbers are the language codes.

Contact information of Yokogawa offices worldwide is provided on the following sheet.

Document No. Description

PIM 113-01Z2 List of worldwide contacts

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 functions. 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 8, and Windows 10 are registered trademarks

or trademarks of Microsoft Corporation in the United States and/or other countries.

• Adobe and Acrobat are either registered trademarks or trademarks of Adobe Systems

Incorporated.

• HART is a registered trademark of FieldComm Group.

• In this manual, the TM and ® symbols do not accompany their respective registered trademark

or trademark names.

• Other company and product names are trademarks or registered trademarks of their respective

holders.

1st Edition: October 2019 (YMI)
All Rights Reserved, Copyright © 2019 Yokogawa Test & Measurement Corporation

IM CA500-01EN

i

Revisions

• October, 2019 1st Edition

ii

IM CA500-01EN

Conventions Used in This Manual

Prefixes k and K

This manual distinguishes prefixes k and K used before units as follows:

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 and Cautions

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 manual, the symbol is used in conjunction with
the word “WARNING” or “CAUTION.”

WARNING

CAUTION

Note

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.

Calls attention to actions or conditions that could cause light injury to the
user or damage to the instrument or user’s data, and precautions that

can be taken to prevent such occurrences.

Calls attention to information that is important for the proper operation of the
instrument.

IM CA500-01EN

iii

How to Read This Manual

1

2

3

4

5

This document provides descriptions with the procedure first followed by the explanation.

In the procedure section, steps for configuring the settings are provided.

In the explanation section, the details of the configure functions are provided.

How the Procedure Is Described

In the procedure section, the panel keys and the names on the menus that are used in the steps

are indicated in bold text.

6.2 Turning Communication Resistance On or Off

Panel key

Procedure

Procedure

1.

With the source value and measurement value displayed, press MENU. A menu screen

appears.

2.

Use the cursor keys to select Device Setup, and then press ENTER. A Device Setup screen

appears.

3.

Use the cursor keys to select &20ȍ. ON and OFF appear in the selection menu.

6

Other Settings

Menu display

6-3

Explanation

4.

Use the arrow keys to select ON or OFF

Confirming the Settings

5.

Press the arrow key corresponding to EXIT SETUP. The settings are confirmed, and a screen

appears showing the source value and measurement value.

Pressing ESC causes the instrument to discard the settings and return to the menu screen.

To initialize the settings, pressing the arrow key corresponding to INIT SETUP.

Description

:KHQWKHFRPPXQLFDWLRQUHVLVWDQFHLVWXUQHGRQDȍUHVLVWRULVFRQQHFWHGWRWKH9ORRS

power output inside the instrument. The communication resistance is used to provide amplitude

to the HART communication signals or BRAIN communication signals superimposed in the

transmission line.

Set this to off when communication signals are not superimposed in the transmission line.

IM CA500-01EN

In addition, “arrow keys” and “cursor keys” indicate the following keys.

Arrow keys

Cursor keys

iv

IM CA500-01EN

Contents

Conventions Used in This Manual ................................................................................................... iii

How to Read This Manual ................................................................................................................iv

Chapter 1 Features

1.1 System Configuration and Block Diagram ..................................................................... 1-1

1.2 Source Function ............................................................................................................. 1-2

1.3 Sweep function ............................................................................................................... 1-8

1.4 Measurement Function ................................................................................................ 1-12

1.5 Calibration Function for Field Instruments ................................................................... 1-17

1.6 Saving and Loading CA500 Data ................................................................................. 1-18

1.7 Saving and Loading CA550 Data ................................................................................. 1-20

1.8 Other Features ............................................................................................................. 1-24

Chapter 2 Source

2.1 DC Voltage Source ......................................................................................................... 2-1

2.2 DC Current Source ......................................................................................................... 2-3

2.3 Resistance Source ......................................................................................................... 2-5

2.4 Voltage Source Corresponding to TC Thermoelectromotive Force ............................... 2-7

2.5 Resistance Source Corresponding to the RTD Temperature ....................................... 2-10

2.6 Frequency and Pulse Source ....................................................................................... 2-12

2.7 Setting the 0% and 100% Values ................................................................................. 2-16

2.8 Dividing and Generating the Source Values ................................................................ 2-18

2.9 Sweep Source .............................................................................................................. 2-20

Chapter 3 Measurement

3.1 DC Voltage Measurement .............................................................................................. 3-1

3.2 DC Current Measurement .............................................................................................. 3-3

3.3 Resistance Measurement .............................................................................................. 3-5

3.4 Temperature Measurement Using Thermocouples ........................................................ 3-7

3.5 Temperature Measurement Using RTDs ...................................................................... 3-10

3.6 Frequency and Pulse Measurement ............................................................................ 3-12

3.7 Setting the 0% and 100% Values ................................................................................. 3-14

3.8 Setting the Tolerance (CA550) ..................................................................................... 3-16

3.9 Average Value Display ................................................................................................. 3-17

1

2

3

4

5

6

7

Index

Chapter 4 Calibrating Field Instruments (CA550)

4.1 Calibration Procedure .................................................................................................... 4-1

4.2 Setting Calibration Conditions ........................................................................................ 4-2

4.3 Saving Calibration Results ............................................................................................. 4-5

Chapter 5 Saving Data

5.1 Saving Data Manually .................................................................................................... 5-1

5.2 Saving Sweeps .............................................................................................................. 5-4

5.3 Loading and Deleting Saved Data ................................................................................. 5-7

5.4 Copying Saved Data to a PC (CA550) ........................................................................... 5-9

5.5 Saved Data Format (CA550) ........................................................................................ 5-10

IM CA500-01EN

v

Contents

Chapter 6 Other Features

6.1 Auto Power-off, Turning the Light Timer On and Off, and Turning the Light On and Off 6-1

6.2 Turning Communication Resistance On or Off ............................................................... 6-3

6.3 Setting the Priority Power Supply ................................................................................... 6-4

6.4 Setting the Decimal Symbol and CSV Separator ........................................................... 6-5

6.5 Setting the Date Display Format .................................................................................... 6-6

6.6 Setting the Language ..................................................................................................... 6-7

6.7 Formatting (Initializing) the Internal Memory .................................................................. 6-8

Chapter 7 USB Function

7.1 USB Interface Features and Specifications ................................................................... 7-1

7.2 Connecting through the USB Interface .......................................................................... 7-2

7.3 List of Commands .......................................................................................................... 7-3

7.4 Commands ..................................................................................................................... 7-5

7.5 Error Codes .................................................................................................................. 7-19

7.6 Status Byte Format ...................................................................................................... 7-20

Index

vi

IM CA500-01EN

Chapter 1 Features

1.1 System Configuration and Block Diagram

System Configuration

RJ sensor (sold separately)

DC voltage, DC
current, resistance,
TC, RTD, pulse

CA500

DC voltage, DC
current, resistance,
TC, RTD, pulse

USB interface
(communication)

PCField instrument

RJ sensor (sold separately)

USB interface
(communication/mass
storage)

1

Features

HART/BRAIN
communication

Field instrument

Block Diagram

Power Source/Communication Port

R.J.
INPUT

USB B

BATT.

ADC

Power
source
control

CPU

DC/DC

Display

CA550

DC/DC

DC/DC

FUNCTION 1 part

CPU

DC/DC

FUNCTION 2 part

CPU

Reference
voltage source

USB interface
(HART/BRAIN modem)

Frequency counter

Constant voltage source

ADC

250Ω

ADC

DCV
DCA

Setting

OHM

Excess volatge / excess
current protection

Current voltage
conversion

OUTPUT

Power AMP

Input
circuit

Current detection

Shunt resistance

Communication
modem

TC-A

TC-A

DCVDCA

PTC

FRQ

PC

FRQ

OHM

DCA

OUTPUT

H

L

mA

+LOOP

+TC-A

H

L

-TC-A

IM CA500-01EN

1-1

1.2 Source Function

The source function generates DC voltage, DC current, resistance, voltage corresponding to the

electromotive force of thermocouples, voltage corresponding to the resistance of RTDs (pseudo-

resistance), and pulse signals.

It can be used simultaneously with measurement functions other than temperature measurement

using thermocouples.

DC Voltage

This function generates the following DC voltages.

Range Source Range Notes

100 mV ±110.000 mV Maximum output current: 10 mA
1-5 V 0.0000 V to +6.0000 V Maximum output current: 10 mA

Can be used as calibration signals for 1, 2, 3, 4, 5 V.

(1-5 V√) 0.0000 V to +6.0000 V Maximum output current: 10 mA

Values for square root operation
5 V ±6.0000 V Maximum output current: 10 mA
30 V ±33.000 V Maximum output current: 1 mA

1-5 V Range

The interval between 0% and 100% is equally divided by four, and the 0%, 25%, 50%, 75%,

and 100% values are output.

With the default settings, you can change the output between 1 V, 2 V, 3 V, 4 V, and 5 V in 1

V steps by pressing the UP or DOWN key. This is convenient when calibrating the five points

from 1 to 5 V.

Square Root Output Function (1-5 V√)

Values corresponding to the square root of 0%, 25%, 50%, 75% and 100% values are

generated. You can change the output using the UP or DOWN key. This can be used as

calibration signals for the square root output of differential pressure transmitters.

Percentage and source value

Percentage 1-5 V source value Square root output (1-5V√)

0% 1.0000 V 1.0000 V
25% 2.0000 V 1.2500 V
50% 3.0000 V 2.0000 V
75% 4.0000 V 3.2500 V
100% 5.0000 V 5.0000 V

1-2

IM CA500-01EN

1.2 Source Function

DC Current

This function generates the following DC currents.

Range Source Range Notes

20 mA ±24.000 mA Output voltage: 0 to 20 V
4-20 mA 0.000 mA to 24.00 mA Output voltage: 0 to 20 V

Can be used as calibration signals for 4, 8, 12, 16, 20 mA.

(4-20 mA√) 0.000 mA to 24.00 mA Output voltage: 0 to 20 V

Values for square root operation
4-20 mA
Simulate

4-20 mA Range

The interval between 0% and 100% is equally divided by four, and the 0%, 25%, 50%, 75%,

and 100% values are output.

With the default settings, you can change the output between 4 mA, 8 mA, 12 mA, 16 mA, and

20 mA in 4 mA steps by pressing the UP or DOWN key. This is convenient when calibrating

the five points from 4 to 20 mA.

Square Root Output Function (4-20 mA√)

Values corresponding to the square root of 0%, 25%, 50%, 75% and 100% values are

generated. You can change the output using the UP or DOWN key. This can be used as

calibration signals for the square root output of differential pressure transmitters.

Percentage and source value

Percentage 4-20 mA source value Square root output (4-20 mA√)

0% 4.000 mA 4.000 mA
25% 8.000 mA 5.000 mA
50% 12.000 mA 8.000 mA
75% 16.000 mA 13.000 mA
100% 20.000 mA 20.000 mA

0.000 mA to 24.000 mA External power supply 5 V to 28 V

1

Features

Simulate (20 mA Simulate) Function

You can connect this instrument to a distributor and simulate a two-wire transmitter. This is

valid when the range is set to 4-20 mA Simulate.

CA500/CA550

H
L

4-20mA

+

Distributor

—

IM CA500-01EN

1-3

1.2 Source Function

Resistance

This function generates the following resistances.

Range Source Range Notes

400Ω 0.00 Ω ~ 440.00 Ω Allowable measurement current: 0.1 mA to 3 mA
4000Ω 0.0 Ω ~ 4400.0 Ω Allowable measurement current: 0.05 mA to 0.6 mA

Resistance Source Method

A pseudo-resistance (R=V/I) is sourced by generating a voltage (V=R×I) corresponding to the

resistance [R] set on the instrument across the output terminals for the current for measuring

resistance [I] supplied to the device to be calibrated such as a resistance measuring

instrument and RTD thermometer.

Therefore, this instrument can be used only for instruments that measure pseudo-resistance

using a current for measuring resistance.

How to Source Accurately

• When measuring resistance using a two-wire system, use lead cables with low resistance.

Because the source resistance is calibrated without including the voltage drop of the

leaked cables, the lead cable resistance will result in error.

• To source the resistance accurately, use of the three-wire system or four-wire system.

Calibration target

CA500/CA550

Red

Black

(three-wire

measuring instrument)

H
L
L’

1-4

IM CA500-01EN

1.2 Source Function

Thermoelectromotive Force of a Thermocouple

Thermoelectromotive force corresponding to the following temperatures is generated for each

thermocouple type.

Thermocouple Source Range Notes

K -200.0°C to +1372.0°C IEC 60584-1
E -250.0°C to +1000.0°C IEC 60584-1
J -210.0°C to +1200.0°C IEC 60584-1
T -250.0°C to +400.0°C IEC 60584-1
N -200.0°C to +1300.0°C IEC 60584-1
L -200.0°C to +900.0°C DIN 43710
U -200.0°C to +600.0°C DIN 43710
R -20.0°C to +1767.0°C IEC 60584-1
S -20.0°C to +1768.0°C IEC 60584-1
B +600.0°C to +1820.0°C IEC 60584-1
C 0.0°C to +2315.0°C IEC 60584-1
XK -200.0°C to +800.0°C GOST R 8.585-2001
A 0.0°C to +2500.0°C IEC 60584-1
D (W3Re/W25Re) 0.0°C to +2315.0°C ASTM E1751/E1751M-09e1
G (W/W26Re) +100.0°C to +2315.0°C ASTM E1751/E1751M-09e1
PLATINEL II 0.0°C to +1395.0°C ASTM E1751/E1751M-09e1
PR20-40 0.0°C to +1888.0°C ASTM E1751/E1751M-09e1

*: Complies also with JIS C 1602
**: The setting can be changed to comply with IPTS-68 (JIS C 1602 1981).

*, **

*, **

*, **

*, **

*

*, **

*, **

*, **

*

1

Features

Temperature Scale

This instrument complies with ITS-90 and IPTS-68.

Connection Terminals

This instrument is equipped with the following two types of terminals.

TC-A (TC mini plug)

A thermocouple is connected to the instrument using a thermocouple mini plug set,

sold separately. Reference junction compensation using an external RJ sensor (sold

separately) is not possible.

TC-B (banana plug)

Reference junction compensation using the internal RJ sensor or an external RJ sensor is

possible.

Reference Junction Compensation

The instrument measures the temperature of the contact using an RJ sensor and generates a

voltage based on the temperature component. This instrument can perform reference junction

compensation using the internal RJ sensor or an external RJ sensor.

When an instrument with a built-in reference junction temperature compensation is to be

calibrated, the reference junction temperature of the device to be calibrated is measured using

an external RJ sensor.

Calibrating only the thermometer

CA500/CA550

H
L

Calibration target

H
L

Calibrating including the thermocouple

CA500/CA550

Calibration target

H
L

H
L

H
L

H
L

IM CA500-01EN

External RJ sensor
Source/measurement
lead cable

Thermocouple

Internal RJ sensor or
external RJ sensor

Internal RJ sensor

Thermocouple

1-5

1.2 Source Function

Resistance of an RTD

Resistance corresponding to the following temperatures is generated for each RTD type.

RTD Source Range Notes

PT100 (PT100 (3851)) -200.0°C to 800.0°C EC 60751
JPT100 (PT100 (3916)) -200.0°C to 510.0°C JIS C 1604 1989 (JPt100)
PT100 (3850) -200.0°C to 630.0°C JIS C 1604 1989 (Pt100)
PT100 (3926) -200.0°C to 630.0°C Minco Application Aid #18
PT200 -200.0°C to 630.0°C IEC 60751
PT500 -200.0°C to 630.0°C IEC 60751
PT1000 -200.0°C to 630.0°C IEC 60751
Cu10 -100.0°C to 260.0°C Minco Application Aid #18
Ni120 -80.0°C to 260.0°C Minco Application Aid #18
PT50 -200.0°C to 630.0°C IEC 60751
PT50G -200.0°C to 800.0°C GOST R 8.625-2006
PT100G -200.0°C to 630.0°C GOST R 8.625-2006
Cu50M -180.0°C to 200.0°C GOST R 8.625-2006
Cu100M -180.0°C to 200.0°C GOST R 8.625-2006

*

*

*

*

*

*: Complies also with JIS C 1604

Frequency

Pulse signals are generated at the following frequencies.

Range Source Range Notes

500 Hz 1.00 Hz to 550.00 Hz
5000 Hz 1.0 Hz to 5500.0 Hz
50 kHz 0.001 kHz to 50.000 kHz
CPM 1.0 to 1100.0/min Generates a signal with a specified number of

pulses per minute

The sweep function cannot be used.

For source range CPM, you can set the frequency using the number of pulses to generate per

minute.

This instrument outputs waveforms at 50% duty cycle.

1-6

Amplitude

h

1 pulse

Frequency = pulse count/s, CPM = pulse count/min

Duty: (h/t)×100%

t

Contact Output

If the contact output is set on during frequency output, a contact signal can be output with the

specified frequency or number of pulses.

The instrument’s
output terminal

H

0.5 to 30 VDC

L

Input terminal of the
output destination device

H

L

IM CA500-01EN

1.2 Source Function

0% and 100% Values

These values become references for the source values when dividing or sweeping the source

values.

When the source is to be generated in divisions, the interval between 0% and 100% is divided

equally by a specified number, and the source value is changed stepwise through key operation.

In a linear sweep, the source value is varied linearly from 0% to 100% or from 100% to 0% over a

specified time period.

In a step sweep, the interval from 0% to 100% is divided equally by a specified number, and the

source value is automatically varied stepwise.

Number of Divisions

The interval between 0% and 100% is divided equally by a specified number, and the source value

is changed stepwise by operating the cursor keys (UP and DOWN keys).

For example, if 0% is set to 50 mV, 100% is set to 100 mV, and the number division is set to 4,

each time you press UP, the source value changes as follows: 0% (50 mV), 25% (62.5 mV), 50% (75

mV), 75% (87.5 mV), 100% (100 mV).

When the source range is 1-5V, 1-5V√, 4-20mA, 4-20mA√, or 4-20mA Simulate, the number

divisions is fixed to 4.

1

Features

Display Switching

You can select the value to show on the main display of the function 2 display area between a

physical value such as a voltage or a percentage.

In the case of a temperature measurement using a thermocouple or RTD, the thermal electromotive

force or resistance can be shown in sub display 2. Moreover, in the case of a temperature

measurement using a thermocouple, the reference junction temperature can also be shown.

Function Main display Sub display 1 Sub display 2 Sub display 3

DC voltage Source value Percentage — —

Percentage Source value — —

DC Current Source value Percentage — —

Percentage Source value — —

Resistance Source value Percentage — —

Percentage Source value — —

Thermocouple Source value (°C) Percentage Source value(voltage) Temperature monitor

(reference junction
temperature)

Percentage Source value (°C) Source value(voltage) Temperature monitor

(reference junction
temperature)

RTD Source value (°C) Percentage Source value (resistance ) —

Percentage Source value (°C) Source value (resistance ) —

Frequency Source value Percentage — —

Percentage Source value — —

The source value or percentage shown in the main display area can also be changed directly using
arrow keys.

IM CA500-01EN

1-7

1.3 Sweep function

The source value can be varied according to a process set in advance.

There are three types: linear sweep, step sweep, and program sweep.

This cannot be used when the source function is set the frequency.

Linear Sweep

The source value is varied linearly from 0% to 100% (sweep up) or from 100% to 0% (sweep

down).

Source
value

100%

0%

Interval

Sweep time
(rise time)

Sweep start (UP key)

Output on

time

Sweep time
(fall time)

Interval
time

Source
value

Time

100%

0%

Interval
time

Sweep time
(fall time)

Sweep start (DOWN key)

Output on

Sweep time
(rise time)

Interval
time

Time

Sweep Time

The time period during which the source value is varied. You can set the rise time and fall time

separately.

Interval Time

The time period during which the source value is held when the source value reaches 0% or

100% after sweeping.

1-8

IM CA500-01EN

Output on (OUTPUT key)

1.3 Sweep Function

Repetition

Sweeping is repeated until the source is turned off. If sweeping is performed for one iteration,

sweeping stops automatically when the interval time elapses after sweeping.

Repetition: Off

Source
value

100%

0%

Sweep start
(UP key)

Interval
time

Repetition: On

Source
value

100%

0%

Time

Sweep stop

Interval time

Sweep start (UP key)

Output on (OUTPUT key)

Output off
(OUTPUT key)

Time

Operation While Sweeping Is in Progress

If you press UP or DOWN while sweeping is in progress (including the interval time) the suite

direction changes.

1

Features

Sweep up->Sweep down

100%

Same slope

0%

DOWN key

Sweep start (UP key)

Output on (OUTPUT key)

Sweep down->Sweep up

100%

0%

Output on (OUTPUT key)

Same slope

UP key

Sweep start

(DOWN key)

If you press OUTPUT while sweeping is in progress, the source turns off.

IM CA500-01EN

1-9

1.3 Sweep Function

Step Sweep

The source value interval from 0% to 100% is divided equally by a specified number, and the

source value is varied stepwise.

The source time of each step is set with interval time.

Source
value

100%

0%

t

Sweep start (UP key)

Output on

t

t

t: Interval time

t

t

t

Source

t

Time

value

100%

0%

t

t

t

Sweep start (DOWN key)

Output on

t t

t

t: Interval time

t t t

t

t

Number of Divisions

The source value interval from 0% to 100% is divided by the specified number. The variation

of each step is given by

Variation = (100% source value - 0% source value)/number of divisions.

Given 0% source value = 1 V, 100% source value = 5 V, number of divisions = 4,

(5 V-1 V)/4 = 1 V.

The source value is stepped up or down by 1 V.

Interval Time

The time period during which the source value of each step is held.

Time

Repetition

Sweep up->Sweep down or Sweep down->Sweep up can be performed once to complete the

sweep, or this cycle can be repeated until the output is turned off.

Saving Data

After sweeping, source values, measure values, and other data can be saved to files.

For details, see section 1.6, “Saving and Loading CA500 Data”, or section 1.7, “Saving and

Loading CA550 Data”.

1-10

IM CA500-01EN

1.3 Sweep Function

Program Sweep

The CA500 and CA550 generate up to 10 and 20 specified values, respectively, in order by

switching.

You can set source values to match specific calibration points.

2

Source
value

100%

0%

1

t

Output on

t

Interval Time

The time period during which each source value is held.

Source Number

You can assign source values to each number from 1 to 10 on the CA500 and 1 to 20 on the

CA550.

When the output is turned on, the specified source values are generated in order from source

number 1.

The source time of each source number is the interval time.

4

3

t

5

t

t

7

6

t

t

Source number

8

t

Interval time

Time

1

Features

Saving Data

After sweeping, source values, measure values, and other data can be saved to files.

For details, see section 1.6, “Saving and Loading CA500 Data”, or section 1.7, “Saving and

Loading CA550 Data”.

Calibration Target Information (CA550)

On the CA550, you can set the model number, serial number, tag number, and loop name of

the device to be calibrated and include them in the saved data.

IM CA500-01EN

1-11

1.4 Measurement Function

The measurement function measures DC voltage, DC current, resistance, temperature, and pulse

signals.

It can be used simultaneously with source functions other than temperature measurement using

thermocouples.

Temperature measurement using thermocouples can be performed simultaneously with another

measurement.

DC voltage

This function measures the following DC voltages.

Range Measurement Range Notes

100 mV ±110.000 mV Input resistance: 1 GΩ or more
5 V ±6.0000 V Input resistance: Approx.1 MΩ
50 V ±55.000 V Input resistance: Approx.1 MΩ

DC Current

This function measures the following DC currents.

Range Measurement Range Notes

50 mA ±60.000 mA Input resistance: 10 Ω or less

Loop Power

A loop test can be performed by applying a constant voltage of 24 VDC to a two-wire

transmitter and measuring the transfer signal.

—

H
L

Distributor

+

Two-wire transmitter

4-20mA

24VDC

CA500/CA550

1-12

IM CA500-01EN

1.4 Measurement Function

Resistance

This function measures the following resistances.

Range Measurement Range Notes

400Ω 0.00 Ω ~ 440.00 Ω
4000Ω 0.0 Ω ~ 4400.0 Ω

Wiring Systems

The following wiring systems are available: two-wire, three-wire, and four-wire.

Two-wire system: Because measurements include the resistance of measurement lead

cables and contact resistance, errors become large. Use this when the

resistance of the DUT is sufficiently larger then the resistance of the

measurement lead cables and contact resistance.

Three-wire system: By making the length of the three measurement lead cables the same,

measurements can be made without hardly being affected by the

resistance of the lead cables.

Four-wire system: Measurements can be made by eliminating the resistance of measurement

lead cables and contact resistance. Use this when you want to make

accurate measurements.

Voltage applied current measurement method

Typical values: 1 mA@0 Ω, 781 μA@400 Ω, 240 μA@4 kΩ

1

Features

Temperature Measurement Using Thermocouples

Temperature is measured using the following thermocouples.

Thermocouple Measurement Range Notes

K -200.0°C to +1372.0°C IEC 60584-1
E -250.0°C to +1000.0°C IEC 60584-1
J -210.0°C to +1200.0°C IEC 60584-1
T -250.0°C to +400.0°C IEC 60584-1
N -200.0°C to +1300.0°C IEC 60584-1
L -200.0°C to +900.0°C DIN 43710
U -200.0°C to +600.0°C DIN 43710
R -20.0°C to +1767.0°C IEC 60584-1
S -20.0°C to +1768.0°C IEC 60584-1
B +600.0°C to +1820.0°C IEC 60584-1
C 0.0°C to +2315.0°C IEC 60584-1
XK -200.0°C to +800.0°C GOST R 8.585-2001
A 0.0°C to +2500.0°C IEC 60584-1
D (W3Re/W25Re) 0.0°C to +2315.0°C ASTM E1751/E1751M
G (W/W26Re) +100.0°C to +2315.0°C ASTM E1751/E1751M
PLATINEL II 0.0°C to +1395.0°C ASTM E1751/E1751M
PR20-40 0.0°C to +1888.0°C ASTM E1751/E1751M

*: Complies also with JIS C 1602

**: The setting can be changed to comply with IPTS-68 (JIS C 1602 1981).

Temperature Scale

This instrument complies with ITS-90 and IPTS-68.

*, **

*, **

*, **

*, **

*

*, **

*, **

*, **

*

IM CA500-01EN

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1.4 Measurement Function

Connection Terminals

This instrument is equipped with the following two types of terminals.

TC-A terminal (TC mini plug)

A thermocouple is connected to the instrument using a thermocouple mini plug set, sold

separately. Reference junction compensation using an external RJ sensor (sold separately) is

not possible.

TC-B terminal (banana plug)

Reference junction compensation using the internal RJ sensor or an external RJ sensor is

possible.

Reference Junction Compensation

The instrument measures the temperature of the reference contact using an RJ sensor and

makes measurements based on that temperature.

This instrument can perform reference junction compensation using the internal temperature

sensor or an external RJ sensor.

When using the TC-A mini plug terminal, you cannot use an external RJ sensor.

Burnout

Thermocouple burnout is detected. When a burnout is detected, this instrument displays “B

OUT” on the screen.

Temperature Measurement Using RTDs

Temperature is measured using the following RTDs.

RTD Measurement range Notes

PT100 (PT100 (3851)) -200.0°C to 800.0°C EC 60751
JPT100 (PT100 (3916)) -200.0°C to 510.0°C JIS C 1604 1989 (JPt100)
PT100 (3850) -200.0°C to 630.0°C JIS C 1604 1989 (Pt100)
PT100 (3926) -200.0°C to 630.0°C Minco Application Aid #18
PT200 -200.0°C to 630.0°C IEC 60751
PT500 -200.0°C to 630.0°C IEC 60751
PT1000 -200.0°C to 630.0°C IEC 60751
Cu10 -100.0°C to 260.0°C Minco Application Aid #18
Ni120 -80.0°C to 260.0°C Minco Application Aid #18
PT50 -200.0°C to 630.0°C IEC 60751
PT50G -200.0°C to 800.0°C GOST R 8.625-2006
PT100G -200.0°C to 630.0°C GOST R 8.625-2006
Cu50M -180.0°C to 200.0°C GOST R 8.625-2006
Cu100M -180.0°C to 200.0°C GOST R 8.625-2006

*: Complies also with JIS C 1604

Wiring Systems

The following RTD wiring systems are available: two-wire, three-wire, and four-wire.

Two-wire system: Because the resistance in the lead wires connecting the RTD and the

instrument is included in the measurement, errors become large. Use this when

the RTD and the instrument are close.

Three-wire system: By making the length of the three measurement lead wires connecting the

RTD and the instrument the same, measurements can be made without hardly

being affected by the resistance of the lead cables.

Four-wire system: Measurements can be made without being affected by the resistance in

the lead wires connecting the RTD and the instrument.

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*

*

*

*

*

IM CA500-01EN

1.4 Measurement Function

Frequency

This function measures the following frequencies.

Range Measurement range Notes

500 Hz 1.00 Hz to 550.0 Hz
5000 Hz 1.0 Hz to 5500.0 Hz
50 kHz 0.001 kHz to 50.000 kHz
Pulse count 0 to 99999 The number of pulses is counted within a unit

time period.

Contact Input

The frequency or the number of signals per minute can be measured through a contact input

using a non-voltage contact.

Vcc (approx. 5 V)

H

L

H

L

Approx. 100 kΩ

1

Features

Measurement
signal

The instrument’s
input terminal

Averaging

Moving average values for every five measured values and the maximum value (MAX) and

minimum value (MIN) of the moving average values are displayed on the screen.

0% and 100% Values

By mapping the output value (specified according to the specifications of the device to be

calibrated) to the 0% or 100% source value of this instrument, you can determine the output value

of the device to be calibrated for the source value.

For example, if the source value of 0% is 1 V and that of 100% is 5 V and the output values are

4 mA and 20 mA when 1 V and 5 V are input to the device be calibrated, assign 4 mA to the

measured value of 0% and 20 mA to that of 100%.

In this situation, the output value (specified according to the specifications of the device to be

calibrated) is 8 mA for a source value of 2 V of this instrument.

4 mA + (20 mA - 4 mA)×(2 V - 1 V)/(5 V - 1 V) = 8 mA

The CA550 calculates the error in the actual output value relative to the output value (specified

according to the specifications of the device to be calibrated) that is mapped to the source value.

Furthermore, this instrument calculates the measurement value percentages relative to the

specified 0% value and 100% value.

IM CA500-01EN

1-15

1.4 Measurement Function

Display Switching

You can select the value to show on the main display of the function 1 display area (function 2

display area for temperature measurements using a thermocouple) between a physical value such

as a voltage or a percentage.

In the case of a temperature measurement using a thermocouple or RTD, the thermal electromotive

force or resistance can be shown in sub display 2. Moreover, in the case of a temperature

measurement using a thermocouple, the reference junction temperature can also be shown.

Function Main display Sub display 1 Sub display 2 Sub display 3

DC voltage Measured value Percentage — —

Percentage Measured value — —

DC Current Measured value Percentage — —

Percentage Measured value — —

Resistance Measured value Percentage — —

Percentage Measured value — —

Thermocouple Measured value

(°C)

Percentage Measured value

RTD Measured value

(°C)
Percentage Measured value

Frequency Measured value Percentage — —

Percentage Measured value — —

Percentage Measured value (voltage) Temperature monitor

(reference junction
temperature)

Measured value (voltage) Temperature monitor

(°C)

Percentage Measured value

(resistance)
Measured value

(°C)

(resistance)

(reference junction
temperature)
—

—

1-16

IM CA500-01EN

1.5 Calibration Function for Field Instruments

The following functions are available to efficiently calibrate field instruments.

1-5V Range

DC voltages from 1 to 5 V, which are common instrumentation signals, are generated in 1 V steps.

This is useful when calibrating the five input signals: 1 V, 2 V, 3 V, 4 V, and 5 V.

4-20 mA Range

DC currents from 4 to 20 mA, which are common instrumentation signals, are generated in 4 mA

steps.

This is useful when calibrating the five input signals: 4 mA, 8 mA, 12 mA, 16 mA, and 20 mA.

Program Sweep (CA550)

By using the CA550 program sweep function, you can assign instrument information such as the

calibration target model number, serial number, and tag number. The assigned information can be

saved as CSV data along with source values, measured values, and errors.

Because measured values, source values, errors, pass/fail judgment results, and the like can be

saved to a file automatically after a program sweep is completed, this is useful for recording data

before adjustment or data after adjustment.

1

Features

Errors and Pass/Fail Judgment (CA550)

The instrument determines the error in the actual output value of the device to be calibrated relative

to the output value (specified according to the specifications of the device to be calibrated) that is

mapped to the source value.

Moreover, the instrument indicates pass or fail depending on whether the measured value is within

the tolerance set in advance.

You can view the errors and pass/fail judgments in the files saved automatically by the program

sweep function.

IM CA500-01EN

1-17

1.6 Saving and Loading CA500 Data

For details on the CA550, see section 1.7.

Saving Data

The following three methods are available to save data.

• Save data by pressing the SAVE key

• Save data automatically after the completion of a step sweep

• Save data automatically after the completion of a program sweep

A total of 100 data entries (memory numbers 1 to 100) can be saved using the above three

methods.

Saving Data Using the SAVE Key

The date and time, information such as the specified function and range, and the measured

value and source value when the SAVE key is pressed are saved.

Auto Save in Step Sweeps or Program Sweeps

The date and time, information such as the specified function and range, the source value and

measured value of each sweep step, and sweep conditions are saved.

Data is saved in a dedicated format of this instrument. Data can be transmitted to a PC using

communication commands.

Memory Number

Saved data is automatically assigned a memory number from 01 to 100.

This also applies when data is saved automatically in a step sweep or program sweep. The data of

each step is assigned a memory number.

Saved Information

The following information is saved.

Function1 Information

Saved data Notes

Measured value
Function
Range
0% value
100% value
Contact input setting
Count time

1-18

IM CA500-01EN

1.6 Saving and Loading CA500 Data

Function2 Information

Saved Data Notes

Source value
Function
Range
0% value
100% value
Sweep setting* Interval time

Repeat

Saving Data ON/OFF
Temperature
setting

Frequency setting Amplitude voltage setting

TC measurement
settings

Contact output setting ON/OFF

Thermocouple terminal TC-A/TC-B

TC-B RJC setting ON/OFF

Burnout setting ON/OFF

TC scale standard setting IPTS-68/ITS-90

Temperature unit °C

Pulse count setting

0% value

100% value

* Not saved when using the SAVE key.

Loading Data

Specify the memory number containing the saved data to load the information. The instrument

settings are changed to the loaded settings.

Measured value and source value are shown in the Function1 and Function2 display positions.

1

Features

IM CA500-01EN

1-19

1.7 Saving and Loading CA550 Data

For details on the CA500, see section 1.6.

Saving Data

The following three methods are available to save data.

• Save data by pressing the SAVE key

• Save data automatically after the completion of a step sweep

• Save data automatically after the completion of a program sweep

Saving Data Using the SAVE Key

Information such as the specified function and range, and the date and time, measured value,

and source value when the SAVE key is pressed are saved. Each time you press SAVE, the

measurement data is added to the same file. However, a new file is created in the following

cases.

• When a setting is changed on the Device Setup screen

• When the function or range is changed

• When the number of save data points exceeds 2000

• When the power is turned off

Auto Save in Step Sweeps

Information such as the specified function and range, the date and time, source value, and

measured value at the completion of each sweep step, and sweep conditions are saved.

Auto Save in Program Sweeps

Calibration target information, information such as the specified function and range, the date

and time, source value, and measured value at the completion of each sweep step, and

sweep conditions are saved as calibration data of field instruments.

The data format is CSV. You can select a comma, semicolon, or tab for the data separator.

In addition, you can select the measured value to be saved, the decimal symbol of the source

value, and the date and time format.

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IM CA500-01EN

1.7 Saving and Loading CA550 Data

Saved Information

The following information is saved.

Saving Data Using the SAVE Key

Saved Data Notes

MODEL CA550
FILE TYPE 0: Manually saved data using the SAVE key

1: Automatically saved data by a step sweep

2: Calibration data by a program sweep
CSV SEPARATOR 0: Comma, 1: Semicolon, 2: Tab
DECIMAL POINT 0: Period, 1: Comma
DATE FORMAT 0: YYYY/MM/DD

1: DD/MM/YYYY

2: MM/DD/YYYY
Range Measurement range, source range
0% VALUE
100% VALUE
CONTACT (contact I/O) 0: OFF, 1:ON
TC SETTING
(temperature setting)

FREQUENCY SETTING
(frequency setting)

No. Number
DATE Measurement date YYYY/MM/DD
TIME Measurement time hh:mm:ss
MEASURE Measured value
SOURCE Source value

Thermocouple terminal setting. 0: TC-A, 1: TC-B

TC-B RJC setting. 0: OFF, 1:ON

Burnout setting. 0: OFF, 1:ON

TC scale standard setting. 0: ITS-90, 1:IPTS-68

Temperature unit. 0: °C

Amplitude voltage setting

Pulse count setting

1

Features

IM CA500-01EN

1-21

1.7 Saving and Loading CA550 Data

Saving Data Using Step Sweep

Saved data Notes

MODEL CA550
FILE TYPE 0: Manually saved data using the SAVE key

CSV SEPARATOR 0: Comma, 1: Semicolon, 2: Tab
DECIMAL POINT 0: Period, 1: Comma
DATE FORMAT 0: YYYY/MM/DD

Range Measurement range, source range
0% VALUE
100% VALUE
DIVISION NUMBER (number of
divisions)
CONTACT (contact I/O) 0: OFF, 1:ON
TC SETTING
(temperature setting)

FREQUENCY SETTING
(frequency setting)

No. Number
DATE Measurement date YYYY/MM/DD
TIME Measurement time hh:mm:ss
MEASURE Measured value
SOURCE Source value

1: Automatically saved data by a step sweep
2: Calibration data by a program sweep

1: DD/MM/YYYY
2: MM/DD/YYYY

Thermocouple terminal setting. 0: TC-A, 1: TC-B
TC-B RJC setting. 0: OFF, 1:ON
Burnout setting. 0: OFF, 1:ON
TC scale standard setting. 0: ITS-90, 1:IPTS-68
Temperature unit. 0: °C
Amplitude voltage setting
Pulse count setting

1-22

IM CA500-01EN

1.7 Saving and Loading CA550 Data

Saving Data Using Program Sweep

Saved data Notes

MODEL CA550
FILE TYPE 0: Manually saved data using the SAVE key

1: Automatically saved data by a step sweep

2: Calibration data by a program sweep
CSV SEPARATOR 0: Comma, 1: Semicolon, 2: Tab
DECIMAL POINT 0: Period, 1: Comma
DATE FORMAT 0: YYYY/MM/DD

1: DD/MM/YYYY

2: MM/DD/YYYY
Range Measurement range, source range
0% VALUE
100% VALUE
CONTACT (contact I/O) 0: OFF, 1:ON
TC SETTING
(temperature setting)

FREQUENCY SETTING
(frequency setting)

MODEL NO. Model number
TAG NO. Tag number
SERIAL NO. Serial number
CALIBRATION DATE Calibration date

CALIBRATOR S/N CA550 serial number
No. Calibration point number
DATE Calibration date YYYY/MM/DD
TIME Calibration time of the calibration point hh:mm:ss
MEASURE Measured value
SOURCE Source value
ERROR% Error
PASS/FAIL Pass/fail

Thermocouple terminal setting. 0: TC-A, 1: TC-B

TC-B RJC setting. 0: OFF, 1:ON

Burnout setting. 0: OFF, 1:ON

TC scale standard setting. 0: ITS-90, 1:IPTS-68

Temperature unit. 0: °C

Amplitude voltage setting

Pulse count setting

YYYY/MM/DD

1

Features

Loading Data

Only the data saved using program sweep can be loaded.

Folder Structure

The following figure shows the CA550 folder structure.

Data saved with the SAVE key is saved.

Measurement/source data (.csv) of step
sweeps is saved.

Measurement/source data (.csv) of program
sweeps is saved.

IM CA500-01EN

Root

SaveData

SweepData

CalibrationData

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