18SN-60 [MSYSTEM]
Rack-mounted DCS Signal Conditioners 18-RACK;
| 型号： | 18SN-60 |
| 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：103K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MODEL: 18SN
Connection
Rack-mounted DCS Signal Conditioners 18-RACK
Input: M3.5 screw terminals (torque 0.8 N·m)
Output: M3.5 screw terminals (torque 0.8 N·m) and
connector
INPUT LOOP POWERED ISOLATOR
Functions & Features
Screw terminal: Nickel-plated steel
Isolation: Input to output
• Loop-powered design eliminates output loop power supply
• 500 V DC input-to-output isolation
Zero adjustment (front)
• 350 Ω output drive with 4 – 20 mA
Voltage output: -5 to +5 %
Current output: -0.5 to +0.5 %
Span adjustment (front)
Typical Applications
• Isolation between control room and field instrumentation,
between telemetering system and input device
• Eliminates ground problems in existing systems thanks to
easiness of application without requiring additional power
wiring
Voltage output: 95 to 105 %
Current output: 98.5 to 101.5 %
INPUT & OUTPUT
■ Input 4 – 20 mA DC / Output 1 – 5 V DC
Equivalent input impedance: Approx. 250 Ω with 20 mA
input
Operational range: 3 – 22 mA DC
(Accuracy is assured within 4 – 22 mA)
Load resistance: ≥ 50 kΩ
■ Input 10 – 50 mA DC / Output 1 – 5 V DC
Equivalent input impedance: Approx. 100 Ω with 50 mA
input
Operational range: 7 – 55 mA DC
(Accuracy is assured within 8 – 55 mA)
Load resistance: ≥ 50 kΩ
MODEL: 18SN–[1][2]0
ORDERING INFORMATION
• Code number: 18SN-[1][2]0
■ Input 4 – 20 mA DC / Output 4 – 20 mA DC
Equivalent input impedance: 230 Ω plus load resistance with
20 mA input
Specify a code from below for each of [1] and [2].
(e.g. 18SN-A60)
Operational range: 3 – 22 mA DC
(Accuracy is assured within 4 – 22 mA)
Load resistance: 50 – 350 Ω (min. 50 Ω required for
adequate operation)
[1] INPUT
Current
A: 4 – 20 mA DC
H: 10 – 50 mA DC
■ Input 10 – 50 mA DC / Output 4 – 20 mA DC
Equivalent input impedance: 90 Ω + [load resistance×0.16]
with 50 mA input
[2] OUTPUT 1
Current
Operational range: 7 – 55 mA DC
A: 4 – 20 mA DC
Voltage
(Accuracy is assured within 8 – 55 mA)
Load resistance: 50 – 600 Ω (min. 50 Ω required for
adequate operation)
6: 1 – 5 V DC
•INPUT 4 – 20 mA DC / OUTPUT 1 – 5 V DC
5.0
approx. 5.0
OUTPUT 2
0: None
4.0
approx.
3.7
GENERAL SPECIFICATIONS
Construction: Rack-mounted; terminal access via screw
terminals on the front and connector on the rear; terminal
cover provided
3.0
4
12
20
INPUT CURRENT [mA]
18SN SPECIFICATIONS
ES-1819 Rev.8 Page 1/4
http://www.m-system.co.jp/
MODEL: 18SN
•INPUT 10 – 50 mA DC / OUTPUT 1 – 5 V DC
INSTALLATION
5.0
approx. 5.0
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)
4.0
approx.
3.7
3.0
PERFORMANCE in percentage of span
Accuracy: ±0.1 %
10
30
50
INPUT CURRENT [mA]
Temp. coefficient
•INPUT 4 – 20mA DC / OUTPUT 4 – 20 mA DC
Voltage output: ±0.015 %/°C (±0.008 %/°F)
Current output: ±0.02 %/°C (±0.01 %/°F)
Response time
12.0
approx. 11.6
(load 350Ω)
10.0
8.0
approx. 9.6
(load 250Ω)
Voltage output: ≤ 0.5 sec. (0 – 90 %)
Current output: Approx. 15 msec. (0 – 90 %)
Load effect (current output)
6.0
approx. 5.0
approx. 4.6
approx. 3.8
approx. 5.6
(load 50Ω)
3.0
4 – 20 mA input: 0.015 %/Ω (50 – 150 Ω)
0.003 %/Ω (150 – 350 Ω)
4
12
20
INPUT CURRENT [mA]
10 – 50 mA input: 0.015 %/Ω (50 – 100 Ω)
0.003 %/Ω (100 – 600 Ω)
•INPUT 10 – 50 mA DC / OUTPUT 4 – 20 mA DC
10.0
(The unit is calibrated with 250 Ω load at the factory.)
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 500 V AC @ 1 minute
(input to output)
approx. 9.3
(load 600Ω)
8.0
approx. 6.5
(load 250Ω)
approx. 4.9
(load 50Ω)
6.0
approx. 4.7
approx. 4.1
approx. 3.8
3.0
1500 V AC @ 1 minute
10
30
50
(input or output to ground)
INPUT CURRENT [mA]
18SN SPECIFICATIONS
ES-1819 Rev.8 Page 2/4
http://www.m-system.co.jp/
MODEL: 18SN
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
18SN SPECIFICATIONS
ES-1819 Rev.8 Page 3/4
http://www.m-system.co.jp/
MODEL: 18SN
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
■VOLTAGE OUTPUT
Z
S
Buffer
Amplifier
+
–
1
2
3
4
7
8
Chopper
Inverter
5
6
+
–
INPUT
OUTPUT
OUTPUT
Rectifier
■CURRENT OUTPUT
S
Isolation
Inverter
Load Effect
Compensation
+
–
1
5
6
+
–
OUTPUT
Z
INPUT
2
3
4
7
8
OUTPUT
Specifications are subject to change without notice.
18SN SPECIFICATIONS
ES-1819 Rev.8 Page 4/4
http://www.m-system.co.jp/
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