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IM CA12E-01E <1>

<6> MEASURE (measurement) / SOURCE (generation) selection switch

Selects MEASURE (measurement) or SOURCE (generation).

<7> Input/output terminals

Used for MEASURE (measurement) and SOURCE (generation) in each range.

<8> 3W input terminal

Used for MEASURE (measurement) in a three-wire connection configuration in the resistance or
RTD range.

<9> Terminal adapter

Attached to the instrument's terminals when measuring a thermocouple signal or when lead wires
are to be connected directly to the terminals.

<10> AC Adapter connection jack

Used to connect an AC adapter (optional).

<11> RJ sensor input connector

When using an external RJ sensor (optional), connect it to this connector.

<12> DIP switches

See Section 7, “Other Features.”

<13> Battery holder

Contains four AA-size batteries. See Section 3, “Replacing Batteries.”

<14> Lead cables for measurement or generation

Used to connect the instrument to the device under measurement/generation.

3. Replacing Batteries

When the 

+   -

 mark is blinking on the display unit, the batteries are exhausted. Replace them

according to the following procedure:

<1> Check that the power is turned off (disconnect the lead cables).
<2> Slide off the cover at the back of the instrument.
<3> Replace all four batteries with new ones. Insert them according to the polarity directions

shown inside the holder.

<4> After replacing the batteries, return the cover to the original position.

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Connecting the AC Power (optional)

 Before connecting the AC power

Strictly observe the following warnings to avoid electrical shock or damage to the instrument.

 

WARNING

Do not use any AC adapter other than the dedicated AC adapter from Yokogawa.

Before connecting the power cord, check that the supply voltage matches the rated
voltage of the instrument.

Before connecting the power cord, check that the instrument’s power key is OFF.

Connection procedure:

<1> Check that the [POWER] key of the instrument is off.
<2> Connect the AC adapter (optional) to the instrument’s AC adapter connection jack. (Note that

unless the AC adapter is connected to the power outlet, the power cannot be turned on).

4. Turning the Power On/Off

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Operating the POWER Key
When the instrument’s power is off, pressing and holding the [POWER] key for more than 1
second causes the power to be turned on. Pressing the key again causes it to be turned off.
When the power is turned on, the instrument starts a self-test and displays “CA12E.” Then the
features selected using the range selection rotary switch and the MEASURE/SOURCE selection
switch start functioning.
• For battery-driven operations, disconnect the AC adapter from the instrument.

■ 

Automatic Power Off
In the factory setting, all indications start blinking if the instrument has not been operated for about
9.5 minutes. Then, if the instrument is not operated for another 30 seconds, it automatically turns
off. To disable this automatic power off feature, see Section 7, “Other Features.”
If you wish to keep the instrument turned on after the indications start blinking, press the [POWER]
key (or any other key). This causes the blinking to return to normal lighting, without changing the
previous settings.

5. SOURCE (generation)

5.1 Connecting the Output Terminals

<1> Insert the plugs of the supplied lead cables into the output terminals of the instrument.
<2> Connect the clips on the other ends of the cables to the input terminals of the device under

generation.

Lo

3W

Lo

Hi

3W

Lo

Lo

Hi

Lo

Hi

3W

(a) Voltage (Thermocouple),
 

2W Resistance (RTD) OUTPUT

(b-1) 3W Resistance (RTD) OUTPUT

(b-2) 3W Resistance (RTD) OUTPUT

Lo

Lo

Hi

Lo

3W

Lo

Hi

3W

Lo

Lo

Hi

<1> Terminal
 

adapter

<1> Short bar
 

(supplied)

<2> Terminal
 

adapter

• When calibrating a resistance temperature detector or a resistance measurement unit in a

three-wire connection configuration, the supplied terminal adapter can be used to achieve a
three-wire connection configuration without shorting the Lo terminal (Fig. b-1). Lo and 3W-Lo
terminals can be shorted (Fig. b-2). Otherwise connect as shown in Fig. a.

1. Safety Precautions

When operating the instrument, strictly observe the precautions below to ensure its correct and safe
operation. If used other than as instructed in this manual, Yokogawa Meters & Instruments Corporation
is not liable for any damage that may result.

■ 

The following safety symbols are used on the instrument and in the manual:

Danger! Handle with care.
This symbol indicates that the operator must refer to an explanation in the User's Manual in
order to avoid risk of injury or death of personnel or damage to the instrument.

WARNING

Indicates a hazard that may result in the loss of life or serious injury of the user unless the
described instruction is abided by.

CAUTION

Indicates a hazard that may result in an injury to the user and/or physical damage to the
product or other equipment unless the described instruction is abided by.

NOTE

Indicates information that is essential for handling the instrument or, should be noted in order
to familiarize yourself with the instrument’s operating procedures and/or functions.

 Damage to the instrument, personal injury or even death may result from electrical shock or

other factors. To avoid this, follow the precautions below:

 WARNING

Use where gases may be present

Do not operate the instrument in a location where flammable or explosive gas/vapor present. It is
extremely hazardous to operate the instrument in such an atmosphere.

External connection

If necessary to touch a circuit to make an external connection, turn off the power to that circuit,
ensure there is no voltage, then perform the connection. When replacing the batteries, disconnect the
lead cables in advance.

Disassembly

Do not disassemble or remodel the instrument yourself. This needs to be done by our service
personnel.

2. Names and Functions of Parts

ON

1 2 3 4

<8> Three-wire input
 

terminal

<3> POWER
 

key

<4> SHIFT
 

key

<1> Display unit

<2> Output value
 

setting keys

<5> Range selection
 

rotary switch

<10> AC Adapter
 

connection jack

<7> Voltage/resistance
 

input and output terminals

<6> MEASURE
 

(measurement)/

 

SOURCE

 

(generation)

 

selection switch

Side View

Front View

Rear View

(with the rear cover removed)

Red

Black

Black

<12> DIP
 

switches

<13> Battery
 

holder

<14> Lead cables

<9> Terminal adapter

<11> RJ sensor
 

input connector

<1> Display unit

a. MEASURE

Lights up when MEASURE (measurement) is
selected using the selection switch <6>.

b. SOURCE

Lights up when SOURCE (generation) is
selected using the selection switch <6>.

c. CAL

Lights up in the calibration mode.

d. 0/FS

Lights up or blinks when offset or full-scale adjustment is performed in the calibration mode.

e.

+   -

This mark indicates the battery’s status. When lit, it indicates the batteries will soon need
replacing. When blinking, it indicates that they must be replaced (see Section 3, “Replacing
Batteries”).

f. Main Seven Segment

Displays a measured value or an output value.

g. Sub Seven Segment

<PT100 range> When IPTS68 is selected by DIP switch 3, 68 is displayed.
<Thermocouple range> When the U, L, B, or S range is selected using the SHIFT key, the type
of thermocouple is displayed.
<Calibration mode> This mode displays the lower two digits of the measured or generated value.

h. Displays the unit of the range selected.
i. ON

It lights up when the output is turned on in SOURCE mode (signal generation).

j. RJ-ON

It lights up when the reference junction compensation is being calculated in SOURCE mode
(signal generation).

k. JPT100

It lights up when the JPT100 standard is selected in the RTD range (PT100 range). Refer to
Section 5.3 “Generating Resistance or RTD Signal”, 6.3 “Measuring Resistance or RTD Signal”
and 7, “Other Features.”

<2> Output value setting keys

Sets an output value for SOURCE mode (signal generation).  The [

]/[

] keys are provided under

each digit, whose value is increased or decreased in increments of 1. Carry of the digit is applied
to increasing the value (pressing the [

] key) when it is 9. Borrow of the digit is applied to decreas-

ing the value (pressing the [

] key) when it is 0.

<3> POWER key

Turns on/off the power supply. For more information, see Section 4, “Turning the Power On/Off.”

<4> SHIFT key

Selects the type of thermocouple or the resistance temperature detector being selected by the
range selection rotary switch (e.g., thermocouple type: S

←→

R).

<5> Range selection rotary switch

Selects a range for SOURCE mode (signal generation) or MEASURE mode (measurement).

User’s
Manual

CA12E
HANDY CAL
(Temperature Calibrator)

IM CA12E-01E

3rd Edition Sep. 2009 (KP)

Thank you for purchasing the CA12E HANDY CAL. Prior to using, read this User’s Manual carefully to 
fully and properly utilize all of the features of this instrument. Also, refer as needed to IM CA12E-02E, 
an additional User’s Manual for this instrument.

-1-

MEASURE

SOURCE ON

+ - RJ-ON

JPT100 CAL

FS

0

a
b

f

c

d

g

i e

j k

h

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Notice regarding the Manual

<1> The information contained in this User’s Manual is subject to change without notice.
<2> Every effort has been made to ensure that the information contained herein is accurate.

However, should any concerns, errors, or omissions come to your attention, or if you have any
comments, please contact us.

IM3E-2009.2

Yokogawa Meters & Instruments Corporation

International Sales Dept.
Tachihi Bld. No.2, 6-1-3, Sakaecho, Tachikawa-shi,Tokyo 190-8586 Japan
Phone: 81-42-534-1413, Facsimile: 81-42-534-1426
YOKOGAWA CORPORATION OF AMERICA (U.S.A.)
Phone: 1-800-888-6400  Facsimile: 1-770-254-0928
YOKOGAWA EUROPE B. V. (THE NETHERLANDS)
Euroweg 2, 3825 HD, Amersfoort, THE NETHERLANDS
Phone: 31-88-4641000  Facsimile: 31-88-4641111
YOKOGAWA AMERICA DO SUL LTDA. (BRAZIL)
Phone: 55-11-5681-2400  Facsimile: 55-11-5681-4434
YOKOGAWA ENGINEERING ASIA PTE. LTD. (SINGAPORE)
Phone: 65-6241-9933  Facsimile: 65-6241-2606
YOKOGAWA MEASURING INSTRUMENTS KOREA CORPORATION (KOREA)
Phone: 82-2-551-0660 to -0664  Facsimile: 82-2-551-0665
YOKOGAWA AUSTRALIA PTY. LTD. (AUSTRALIA)
Phone: 61-2-8870-1100  Facsimile: 61-2-8870-1111
YOKOGAWA INDIA LTD. (INDIA)
Phone: 91-80-4158-6000  Facsimile: 91-80-2852-1441
YOKOGAWA SHANGHAI TRADING CO., LTD. (CHINA)
Phone: 86-21-6239-6363  Facsimile: 86-21-6880-4987
YOKOGAWA MIDDLE EAST B. S. C (C) (BAHRAIN)
Phone: 973-17-358100  Facsimile: 973-17-336100
YOKOGAWA ELECTRIC CIS LTD. (RUSSIAN FEDERATION)
Phone: 7-495-737-7868  Facsimile: 7-495-737-7869

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