MODEL: 18KJDN

18KJDN SPECIFICATIONS

ES-0425 Rev.2 Page 1/4

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

Rack-mounted DCS Signal Conditioners 18K-RACK

CURRENT LOOP SUPPLY

(with square root extractor)

Functions & Features

• 2-wire transmitter circuit with short-circuit protection

• Applicable to smart transmitters

• Can also be used as a 4 - 20 mA DC square root extractor

• Module can be retracted without removing wiring for an

insulation test

• Optional power switch

Typical Applications

• Various 2-wire transmitters

MODEL: 18KJDN–A66–R[1]

ORDERING INFORMATION

• Code number: 18KJDN-A66-R[1]

Specify a code from below for [1].

(e.g. 18KJDN-A66-R/S)

INPUT

Current

A: 4 – 20 mA DC (Input resistance 250 Ω)

OUTPUT 1

Voltage

6: 1 – 5 V DC (Load resistance 2000 Ω min.)

OUTPUT 2

Voltage

6: 1 – 5 V DC (Load resistance 2000 Ω min.)

POWER INPUT

DC Power

R: 24 V DC

(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)

[1] OPTIONS

Power Switch

blank: None

/S: With power switch

RELATED PRODUCTS

• Programming Unit (model: PU-2x)

• PC configurator software (model: JXCON)

Downloadable at M-System’s web site.

A dedicated cable is required to connect the module to the

PC. Please refer to the internet software download site or

the users manual for the PC configurator for applicable

cable types.

GENERAL SPECIFICATIONS

Construction: Rack-mounted; terminal access via screw

terminals on the front and connector on the rear; terminal

cover provided

Connection

Input: M3.5 screw terminals (torque 0.8 N·m)

and connector

Output 1: Connector

Output 2: M3.5 screw terminals (torque 0.8 N·m)

and connector

Power input: Supplied from connector

Screw terminal: Nickel-plated steel

Isolation: Input to output 1 to output 2 to power

Overrange output: 0 – 105 % at 1 – 5 V

Adjustments: Programming Unit (model: PU-2x);

(For settings programable with JXCON, refer to its

instruction manual)

•Zero and span

Low-end cutout: Output is proportional to input when the

output is less than approx. 5 %

INPUT

Approx. 6%

Approx. 5%

0

SUPPLY OUTPUT

Output voltage: 24 – 28 V DC with no load

Current rating: ≤ 22 mA DC

• Shortcircuit Protection

Current limited: 30 mA max.

Protected time duration: No limit