MODEL: 18JDN

18JDN SPECIFICATIONS

ES-1825 Rev.7 Page 1/3

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

Rack-mounted DCS Signal Conditioners 18-RACK

CURRENT LOOP SUPPLY

(with square root extractor)

Functions & Features

• Powering a 4 – 20 mA DC current loop

• Shortcircuit protection

• Applicable to smart transmitters

• Usable as Square Root Extractor for 4 – 20 mA DC signals

• Second channel output available at the front terminals

and at the Standard Rack connector

Typical Applications

• Various 2-wire transmitters

MODEL: 18JDN–A66–R

ORDERING INFORMATION

• Code number: 18JDN-A66-R

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.)

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)

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: Approx. 30 mA

Protected time duration: No limit

INPUT SPECIFICATIONS

■ DC Current: Input resistor incorporated

OUTPUT SPECIFICATIONS

The output goes below 0 % when the input is open.

INSTALLATION

Current consumption: Approx. 85 mA

Operating temperature: -5 to +55°C (23 to 131°F)