MODEL: 18DYH2

18DYH2 SPECIFICATIONS

ES-1832 Rev.2 Page 3/3

http://www.m-system.co.jp/

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

1

5

6

DC Isolation

HART Isolation

4

3

2

OUTPUT 2

+

−

4 – 20mA DC

7

8

*1

HHC

*1

HHC

*1

HHC

+

−

INPUT

+

24 V DC

Supply

1

250Ω

2

3

2

1

3

–

+

250Ω

■ When used as DC Supply

■ When used as Isolator

+

−

INPUT

+

+

+

−

For OUTPUT 2, use either of terminals on the front or connector on the rear.

*1. Hand-held communicator

*2. Included with option /B

*2

Opencircuit

Detector

250Ω

Output

Driver

S

Z

Output

Driver

S

Z

Amplifier

OUTPUT 2

OUTPUT 1

POWER

2-WIRE XMTR

PWR SUPPLY

2-WIRE

XMTR

Specifications are subject to change without notice.