MODEL: 18AT

18AT SPECIFICATIONS

ES-1762 Rev.5 Page 4/4

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

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

Comparator

OUTPUT

5

SETPOINT ADJ.

POWER

HI / LO

Output

*

Ry

8

H

COM

6

■ SINGLE ALARM

* Relay status is determined by output codes.

**Deleted with B thermocouple

Comparator

LO OUTPUT

5

SETPOINT ADJ.

POWER

Ry

8

6

7

■ DUAL ALARM

*

*

**

**

Comparator

SETPOINT ADJ.

Ry

HI OUTPUT

Low Drift

Amplifier

4

Burnout

Protection

+

–

T / C

CJC

SENSOR

metal leg

comp. leadwire

1

2

+

–

CJC Sensing

Volt. Generator

red

red

black

3

4

Low Drift

Amplifier

Burnout

Protection

+

T / C

CJC

SENSOR

metal leg

1

2

+

black

3

–

comp. leadwire

–

CJC Sensing

Volt. Generator

model: CJM

model: CJM

LOAD

Inductive

Load (Coil)

Varistor or Spark

Quenching Circuit

•DC Powered

LOAD

Inductive

Load (Coil)

Diode, Varistor or

CR Circuit

■ Relay Protection

•AC Powered

U

Specifications are subject to change without notice.