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Model MH1

Isolator

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 MH1 Isolator (User’s Manual)

IM 77J04H01-01E

(This manual)

Model MH1 Isolator (General Specifications)

GS 77J01H01-01E

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.

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:

 • MH1: 1

 • Receiving resistor (for current input): 1

 • Spacer (used for DIN rail mounting): 1

 • User’s Manual (this manual: IM 77J04H01-01E): 1 copy

GENERAL

This plug-in type isolator receives DC current or DC voltage 

signals to convert them into isolated DC current or DC voltage 

signals.

IM 77J04H01-01E

3rd Edition June 2018 (YK)

MODEL AND SUFFIX CODES

Model Suffix codes

Description

MH1D

-x x -x *C /x

Isolator

Input 

signal

-A

4 to 20 mA DC

-B

2 to 10 mA DC

-C

1 to 5 mA DC

-D

0 to 20 mA DC

-E

0 to 16 mA DC

-F

0 to 10 mA DC

-G

0 to 1 mA DC

-H

10 to 50 mA DC

-1

0 to 10 mV DC

-2

0 to 100 mV DC

-3

0 to 1 V DC

-4

0 to 10 V DC

-5

0 to 5 V DC

-6

1 to 5 V DC

-7

−10 to +10 V DC

-Z

Custom order

Output signal

A

4 to 20 mA DC

B

2 to 10 mA DC

C

1 to 5 mA DC

D

0 to 20 mA DC

E

0 to 16 mA DC

F

0 to 10 mA DC

G

0 to 1 mA DC

1

0 to 10 mV DC

2

0 to 100 mV DC

3

0 to 1 V DC

4

0 to 10 V DC

5

0 to 5 V DC

6

1 to 5 V DC

7

−10 to +10 V DC

Z

Custom order

Power supply

-1

15-40 V DC 

*1

-2

100-240 V AC 

*2

Style code

*C

Style C

Option

/SN

No socket (with socket if not specified)

/C0

Coating

/FB

Fuse bypass

*1 Operating range: 12 to 48 V DC

*2 Operating range: 85 to 264 V AC

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/

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