18DYH2-A6A-R [MSYSTEM]
Rack-mounted DCS Signal Conditioners 18-RACK;
| 型号： | 18DYH2-A6A-R |
| 厂家： | 
M-SYSTEM |
| 描述： | Rack-mounted DCS Signal Conditioners 18-RACK DCS 分布式控制系统 |
| 文件： | 总3页 (文件大小：101K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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/
MODEL: 18DYH2
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Standard Rack 18BXx or 18KBXx
Weight: 110 g (0.24 lb)
PERFORMANCE in percentage of span
Accuracy: ±0.1 %
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)
Response time: ≤ 0.5 sec. (0 – 90 %)
Line voltage effect
Supply output: ±3 % over voltage range
Output signal: ±0.1 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1500 V AC @ 1 minute
(input to output 1 or output 2 or power)
500 V AC @ 1 minute
(output 1 to output 2 to power)
1500 V AC @ 1 minute
(input or output or power to ground)
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
7
8
5
6
1
2
3
4
18DYH2 SPECIFICATIONS
ES-1832 Rev.2 Page 2/3
http://www.m-system.co.jp/
MODEL: 18DYH2
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
HART Isolation
Z
S
Z
S
DC Isolation
*2
4 – 20mA DC
Output
Driver
Opencircuit
Detector
+
−
+
2
3
1
4
7
8
5
6
+
−
*1
Amplifier
R
L
250Ω
INPUT
OUTPUT 2
HHC
2-WIRE XMTR
PWR SUPPLY
24 V DC
Supply
Output
Driver
OUTPUT 1
OUTPUT 2
POWER
For OUTPUT 2, use either of terminals on the front or connector on the rear.
*1. Hand-held communicator
*2. Included with option /B
■ When used as DC Supply
■ When used as Isolator
+
–
+
−
+
2
3
1
2
3
1
*1
250Ω
HHC INPUT
250Ω
*1
2-WIRE
XMTR
−
+
HHC
+
Specifications are subject to change without notice.
18DYH2 SPECIFICATIONS
ES-1832 Rev.2 Page 3/3
http://www.m-system.co.jp/
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