YOKOGAWA JUXTA MA7, User Manual

Model MA7

Distributor

(Unified Signal Type)

CAUTIONARY NOTES FOR SAFE USE OF THE 

PRODUCT

This User’s Manual should be carefully read before installing and 

operating the product. Please keep this User’s Manual for future 

reference.

The related manuals and general specifications are shown in the 

table below.

Doc. Name

Doc. Number 

Model MA7 Distributor (User’s Manual)

IM 77J04A07-01E

(This manual)

Model MA7 Distributor (General Specifications)

GS 77J04A07-01E

User’s manuals in the above table are essential parts of the 

product; keep it in a safe place for future reference.

This manual is intended for the following personnel;   

 •

Engineers responsible for installation, wiring, and maintenance 

of the equipment.

 • Personnel responsible for normal daily operation of the 

equipment.

The following symbol is used on the product and in this manual to 

ensure safe usage.

  WARNING

Calls attention to actions or conditions that could 

cause serious or fatal injury to the user, and indicates 

precautions that should be taken to prevent such 

occurrences.

  CAUTION

Calls attention to actions or conditions that could 

cause injury to the user or damage to the instrument 

or property and indicates precautions that should be 

taken to prevent such occurrences.

QR Code

The product has a QR Code pasted for efficient plant 

maintenance work and asset information management.

It enables confirming the specifications of purchased products 

and user’s manuals.

For more details, please refer to the following URL.

https://www.yokogawa.com/qr-code

*  QR Code is a registered trademark of DENSO WAVE 

INCORPORATED.

CHECKING PRODUCT SPECIFICATIONS 

AND PACKAGE

(1) Checking the Model and Product Specifications

  Check that the model and specifications indicated on the 

nameplate attached to the main unit are as ordered.

(2) Packaged Items

  Check that the packing carton contains the following items:

 •

MA7: 1 unit

Standard Accessories: 

 •

Spacer (used for DIN rail mounting): 1 piece

 •

Socket (A1653MR): 1 piece (when /SN option is not 

specified.)

 •

User’s Manual (this manual: IM 77J04A07-01E): 1 copy

IM 77J04A07-01E

4th Edition June 2021 (YK)

GENERAL

The MA7 is a plug-in type distributor that is used in combination 

with a two-wire type transmitter to convert the transmitter’s 4 to 

20 mA DC signals into isolated 4 to 20 mA DC current or 1 to 5 V 

DC voltage signals.

MODEL AND SUFFIX CODES

Model

Suffix codes Description

MA7

-A x -x /x

Distributor

Input 

signal

-A

4 to 20 mA DC

Transmitter power supply: 25.25±0.25 V DC

Output signal

A

4 to 20 mA DC

6

1 to 5 V DC

Power supply

-3

24 V DC

±10%

-4

100-130 V AC/DC 

*1

-5

200-240 V AC 

*2

Option

/SN

No socket (with socket if not specified)

/C0

Coating

/FB

Fuse bypass

*1 Operating range: 85 to 150 V AC/DC

*2 Operating range: 170 to 264 V AC

Note: An exclusive User’s Manual might be attached to the 

products whose suffix codes or option codes contain the code 

“Z” (made to customers’ specifications). Please read it along 

with this manual.

User’s

Manual

1

Please read through this User’s Manual before use for correct handling.

Please keep this User’s Manual for future reference.

2-9-32, Naka-cho Musashino-shi, Tokyo 180-8750 Japan

Phone: +81-422-52-7179  Facsimile: +81-422-52-6793

http://www.yokogawa.com/ns/juxta/im/

You can download the latest manuals from the following website: