18AR-56-R/BL [MSYSTEM]

Rack-mounted DCS Signal Conditioners 18-RACK;


型号：	18AR-56-R/BL
厂家：	M-SYSTEM
描述：	Rack-mounted DCS Signal Conditioners 18-RACK DCS 分布式控制系统
文件：	总4页 (文件大小：128K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MODEL: 18AR

3: Lo (coil energized at alarm)

Rack-mounted DCS Signal Conditioners 18-RACK

4: Lo (coil de-energized at alarm)

5: Hi/Lo; N.O., OFF in power failure

(connector output not available)

6: Hi/Lo; N.C., OFF in power failure

(connector output not available)

0: Specify

RTD ALARM

Functions & Features

• Providing relay contact closures at preset input levels

• Direct input from an RTD

• Burnout protection

• Single or dual (Hi/Lo) trip

POWER INPUT

DC Power

• Front-accessed screwdriver setpoint adjustments

• Enclosed relays

R: 24 V DC

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

Typical Applications

• Annunciator

• Various alarm applications

[3] OPTIONS

Burnout

blank: Upscale burnout

/BL: Downscale burnout

GENERAL SPECIFICATIONS

Construction: Rack-mounted; terminal access via screw

terminals on the front and connector on the rear; terminal

cover provided

Connection

MODEL: 18AR–[1][2]–R[3]

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

Alarm output: M3.5 screw terminals (torque 0.8 N·m) and

connector

ORDERING INFORMATION

• Code number: 18AR-[1][2]-R[3]

Power input: Supplied from connector

Screw terminal: Nickel-plated steel

Isolation: Input to output to power

Relay: Enclosed

Specify a code from below for each of [1] through [3].

(e.g. 18AR-45-R/BL)

• Temperature range (e.g. 0 – 250°C)

Use Ordering Information Sheet (No. ESU-1033) to specify

alarm output code 0 specifications.

Setpoint adjustments: Multi-turn screwdriver adjustments

(front); -5 – +105 % independently

Hysteresis (deadband): Approx. 1 %

Front LEDs: Red LED turns on when the coil is energized.

[1] INPUT RTD (2- or 3-wire)

1: JPt 100 (JIS'89)

(Usable range: -200 to +500°C, -328 to +932°F; min.span: 30°C, 54°F)

3: Pt 100 (JIS'89)

INPUT SPECIFICATIONS

Maximum leadwire resistance: 20 Ω per wire (3-wire)

Sensing current: 2 mA (Pt)

(Usable range: -200 to +650°C, -328 to +1202°F; min.span: 30°C, 54°F)

4: Pt 100 (JIS'97, IEC)

(Usable range: -200 to +650°C, -328 to +1202°F; min.span: 30°C, 54°F)

5: Pt 50 Ω (JIS'81)

(Usable range: -200 to +500°C, -328 to +932°F; min.span: 60°C, 108°F)

6: Ni 508.4 Ω

(Usable range: -50 to +200°C, -58 to +392°F; min.span: 20°C, 36°F)

0: Specify

Note: Consult M-System for 2-wire RTD

[2] ALARM OUTPUT

1: Hi (coil energized at alarm)

2: Hi (coil de-energized at alarm)

18AR SPECIFICATIONS

ES-1764 Rev.5 Page 1/4

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

MODEL: 18AR

OUTPUT SPECIFICATIONS

Output: Enclosed SPST and SPDT relays

Rating: 120 V AC @ 1 A (cos ø = 1)

30 V DC @ 1 A (resistive load)

0.2 A maximum for the connector output

Maximum switching voltage: 120 V AC or 30 V DC

Max. switching power: 120 VA or 30 W (24 VA or 6 W for the

connector output)

Minimum load: 5 V DC @ 10m A

Mechanical life: 5 × 10 cycles

• Single Alarm

Front terminals

5 – 6

5 – 7

OFF

Energized

De-energized (or power OFF)

OFF

Rear connector

ALARM

OUTPUT

CODE

POWER ON

POWER OFF

IN < SET

OFF

IN > SET

OFF

• Dual Alarm (front terminals)

POWER ON

ALARM

POWER OFF

5 – 6 7 – 8

IN < SET

IN > SET

OUTPUT

CODE

5 – 6 7 – 8 5 – 6 7 – 8

OFF

OFF OFF

OFF

Shades indicates that the relay is energized.

INSTALLATION

Current consumption: Approx. 80 mA

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

Operating humidity: 30 to 90 %RH (non-condensing)

Mounting: Standard Rack 18BXx or 18KBXx

Weight: 150 g (0.33 lb)

PERFORMANCE in percentage of span

Trip point repeatability: ±0.1 %

Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)

Response time: ≤ 0.5 sec. (0 – 100 % at 90 % setpoint)

Burnout response: ≤ 10 sec.

Line voltage effect: ±0.1 % over voltage range

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength: 1500 V AC @ 1 minute

(input to output or power)

500 V AC @ 1 minute (output to power)

1500 V AC @ 1 minute (input or output or power to ground)

18AR SPECIFICATIONS

ES-1764 Rev.5 Page 2/4

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

MODEL: 18AR

EXTERNAL VIEW

■ SINGLE ALARM

■ DUAL ALARM

Indicator

Hi Alarm Indicator

High Setpoint Adj.

Low Setpoint Adj.

Lo Alarm Indicator

Setpoint Adj.

EXTERNAL DIMENSIONS unit: mm (inch)

2–M3

SCREW

8–M3.5

7 (.28)

SCREW

7 (.28)

24 (.94)

32 (1.26)

78 (3.07)

TERMINAL ASSIGNMENTS

18AR SPECIFICATIONS

ES-1764 Rev.5 Page 3/4

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

MODEL: 18AR

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

■ SINGLE ALARM

■ Relay Protection

•AC Powered

Burnout

RTD

SETPOINT ADJ.

Comparator

Inductive

Load (Coil)

Reference

Resistor

COM

Varistor or Spark

Quenching Circuit

Differential

Amplifier

–

LOAD

OUTPUT

2mA

•DC Powered

Inductive

Load (Coil)

HI / LO

Output

Diode, Varistor or

CR Circuit

LOAD

POWER

■ DUAL ALARM

Burnout

RTD

SETPOINT ADJ.

Comparator

Reference

Resistor

Differential

Amplifier

LO OUTPUT

HI OUTPUT

–

2mA

Comparator

SETPOINT ADJ.

POWER

*Relay status is determined by output codes.

Specifications are subject to change without notice.

18AR SPECIFICATIONS

ES-1764 Rev.5 Page 4/4

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

相关型号：