18KDYH2 [MSYSTEM]
Rack-mounted DCS Signal Conditioners 18K-RACK;
| 型号： | 18KDYH2 |
| 厂家： | 
M-SYSTEM |
| 描述： | Rack-mounted DCS Signal Conditioners 18K-RACK DCS 分布式控制系统 |
| 文件： | 总5页 (文件大小：133K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MODEL: 18KDYH2
Rack-mounted DCS Signal Conditioners 18K-RACK
[2] OPTIONS (multiple selections)
Opencircuit detection
blank: none
CURRENT LOOP SUPPLY
(applicable to HART signal, opencircuit detection selectable)
Functions & Features
/B: Opencircuit detector (Only for HART signal)
Connector output polarity reversal
blank: none
• Powers a 4 – 20 mA DC current loop
• Isolates and relays HART signals
• Shortcircuit protection
/RE: Connector output polarity reversal (Only for HART signal)
• Opencircuit detection selectable
• Module can be retracted without removing wiring for an
insulation test
GENERAL SPECIFICATIONS
Construction: Rack-mounted; terminal access via screw
terminals on the front and connector on the rear; terminal
cover provided
Typical Applications
Connection
• 2-wire HART transmitters
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: Approx. -10 to +110 %
Zero adjustment: -5 to +5 % (front)
Span adjustment: 95 to 105 % (front)
Open-circuit detection: This function enables the input
device to detect open circuit of output circuit isolated from
the input circuit.
MODEL: 18KDYH2–A[1]–R[2]
ORDERING INFORMATION
• Code number: 18KDYH2-A[1]-R[2]
Specify a code from below for each of [1] and [2].
(e.g. 18KDYH2-A6A-R/B/RE)
Input current 0 mA when the output loop is open.
Photo MOSFET Relay ON Resistance; 3 Ω max.
SUPPLY OUTPUT
(across the terminals 1 – 2)
Output voltage: 24 – 28 V DC with no load
18 V DC at 20 mA
INPUT
Current
A: 4 - 20 mA DC (Input resistance approx. 250Ω)
Current rating: ≤ 22 mA DC
• Shortcircuit Protection
[1] OUTPUT 1 / OUTPUT 2
Current limited: 30 mA max.
Protected time duration: No limit
6A: 1 – 5 V DC (Load resistance 2000 Ω min.)
/ 4 – 20 mA DC (Applicable to HART signal, load resistance 600 Ω max.)*
A6: 4 – 20 mA DC (Applicable to HART signal, load resistance 600 Ω max.)*
/ 1 – 5 V DC (Load resistance 2000 Ω min.)
INPUT SPECIFICATIONS
■ DC Current: Input resistor incorporated
Input current: ≥ 0 mA
AA: 4 – 20 mA DC (Applicable to HART signal, load resistance 600 Ω max.)*
/ 4 – 20 mA DC (Load resistance 500 Ω max.)
* 250 Ω ±10% for HART communication
OUTPUT SPECIFICATIONS
The output goes below 0 % when the input is open.
Polarity of connector output is reversed with option code
/RE (with connector output polarity reversal).
POWER INPUT
DC Power
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
18KDYH2 SPECIFICATIONS
ES-0430 Rev.3 Page 1/5
http://www.m-system.co.jp/
MODEL: 18KDYH2
Blank (note)
■
Current direction
18KBXx
+
DCS units of
various
18KDYH2
manufactures
–
Current direction
/RE (with connector output polarity reversal)
■
Current direction
18KBXx
+
DCS units of
various
manufactures
18KDYH2
–
Current direction
HART COMMUNICATION
Transmission gain: Approx. -3 dB (within 1 – 3 kHz)
measured with 250 Ω at output
Loop impedance: 250 Ω ±10 %
Communication directions: Bidirectional
INSTALLATION
Current consumption:
Output Code 6A, A6: Approx. 120 mA
Output Code AA: Approx. 130 mA
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Standard Rack 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: 500 V AC @ 1 minute (input to output 1
to output 2 to power to ground)
18KDYH2 SPECIFICATIONS
ES-0430 Rev.3 Page 2/5
http://www.m-system.co.jp/
MODEL: 18KDYH2
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
18KDYH2 SPECIFICATIONS
ES-0430 Rev.3 Page 3/5
http://www.m-system.co.jp/
MODEL: 18KDYH2
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
■OUTPUT CODE: 6A
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
Module
Field Terminals
(Section A)
OUTPUT 2
HHC
24 V DC
Supply
Output
Driver
OUTPUT 1
OUTPUT 2
External
Field Terminals
(Section A)
POWER
Note 1: Use either of module or external field terminals.
Note 2: For OUTPUT 2, use either of terminals on the front or connector on the rear.
*1. Hand-held communicator
*2. Included with option /B
Section A. Field Terminals
■ When used as DC Supply
■ When used as Isolator
250Ω
–
2
3
1
+
*1
+
−
2
3
*1
HHC
INPUT
2-WIRE
XMTR
−
+
HHC
+
+ 1
18KDYH2 SPECIFICATIONS
ES-0430 Rev.3 Page 4/5
http://www.m-system.co.jp/
MODEL: 18KDYH2
■OUTPUT CODE: A6, AA
HART Isolation
DC Isolation
Z
S
Z
S
*2
Output
Driver
Opencircuit
Detector
2
5
6
+
−
Amplifier
250Ω
Module
Field Terminals
(Section A)
OUTPUT 2
3
1
4
7
8
24 V DC
Supply
Output
Driver
OUTPUT 1
(HHC *1)
OUTPUT 2
External
Field Terminals
(Section A)
POWER
Note 1: Use either of module or external field terminals.
Note 2: For OUTPUT 2, use either of terminals on the front or connector on the rear.
*1. Hand-held communicator
*2. Included with option /B
Section A. Field Terminals
■ When used as DC Supply
■ When used as Isolator
250Ω
–
2
3
1
+
*1
+
−
2
3
*1
HHC
INPUT
2-WIRE
XMTR
−
+
HHC
+
+ 1
Specifications are subject to change without notice.
18KDYH2 SPECIFICATIONS
ES-0430 Rev.3 Page 5/5
http://www.m-system.co.jp/
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