Datasheet > 18DYH2

18DYH2

更新时间： 2022-06-24 15:44:17

品牌	Logo	应用领域
爱模 - MSYSTEM		DCS 分布式控制系统
页数	文件大小	规格书
3页	101K
描述
Rack-mounted DCS Signal Conditioners 18-RACK

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数据手册

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18DYH2 数据手册

MODEL: 18DYH2

Rack-mounted DCS Signal Conditioners 18-RACK

[1] OPTIONS

Opencircuit detection

blank: none

CURRENT LOOP SUPPLY

(applicable to HART signal, opencircuit detection selectable)

Functions & Features

/B: Opencircuit detector

• Powers a 4 – 20 mA DC current loop

• Isolates and relays HART signals

• Shortcircuit protection

GENERAL SPECIFICATIONS

Construction: Rack-mounted; terminal access via screw

terminals on the front and connector on the rear; terminal

cover provided

• Opencircuit detection selectable

Connection

Typical Applications

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

Output 1: Connector

• 2-wire HART transmitters

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: Approx. -10 to +110 %

Zero adjustment: -5 to +5 % (front)

Span adjustment: 95 to 105 % (front)

Opencircuit detection: Input current 0 mA when the output

loop is open.

Photo MOSFET Relay ON Resistance; 3 Ω max.

MODEL: 18DYH2–A6A–R[1]

SUPPLY OUTPUT

ORDERING INFORMATION

• Code number: 18DYH2-A6A-R[1]

Specify a code from below for [1].

(e.g. 18DYH2-A6A-R/B)

(across the terminals 1 – 2)

Output voltage: 24 – 28 V DC with no load

18 V DC min. at 20 mA

Current rating: ≤ 22 mA DC

• Shortcircuit Protection

INPUT

Current

Current limited: 30 mA max.

Protected time duration: No limit

A: 4 - 20 mA DC (Input resistance approx. 250Ω)

INPUT SPECIFICATIONS

■ DC Current: Input resistor incorporated

Input current: ≥ 0 mA

OUTPUT 1

Voltage

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

OUTPUT SPECIFICATIONS

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

OUTPUT 2

Current

A: 4 – 20 mA DC (Load resistance 600 Ω max.)

250 Ω ±10% for HART communication

HART COMMUNICATION

Transmission gain: Approx. -3 dB (within 1 – 3 kHz)

measured with 250 Ω at output

POWER INPUT

DC Power

Loop impedance: 250 Ω ±10 %

Communication directions: Bidirectional

R: 24 V DC

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

INSTALLATION

Current consumption: Approx. 120 mA

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

18DYH2 SPECIFICATIONS

ES-1832 Rev.2 Page 1/3

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

12 3

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