18AR-11-R [MSYSTEM]
Rack-mounted DCS Signal Conditioners 18-RACK;型号: | 18AR-11-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
7
• Single Alarm
Front terminals
5 – 6
ON
5 – 7
OFF
ON
Energized
De-energized (or power OFF)
OFF
Rear connector
ALARM
OUTPUT
CODE
POWER ON
POWER OFF
IN < SET
OFF
IN > SET
ON
1
2
3
4
OFF
ON
OFF
ON
ON
OFF
OFF
ON
ON
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
5
6
ON
OFF
ON
OFF
ON
ON
OFF OFF
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
7
8
7
8
Indicator
Hi Alarm Indicator
5
1
6
5
1
6
2
High Setpoint Adj.
Low Setpoint Adj.
Lo Alarm Indicator
Setpoint Adj.
2
3
4
3
4
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
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
8
5
6
7
Burnout
RTD
SETPOINT ADJ.
Comparator
Inductive
Load (Coil)
1
2
3
4
A
B
B
Reference
Resistor
COM
+
Varistor or Spark
Quenching Circuit
Differential
Amplifier
–
Ry
LOAD
*
*
H
L
OUTPUT
2mA
2mA
U
•DC Powered
Inductive
Load (Coil)
HI / LO
Output
Diode, Varistor or
CR Circuit
LOAD
POWER
■ DUAL ALARM
Burnout
RTD
SETPOINT ADJ.
Comparator
1
2
3
4
A
B
B
*
*
5
6
7
8
Reference
Resistor
+
Differential
Amplifier
LO OUTPUT
HI OUTPUT
–
Ry
Ry
2mA
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:
©2020 ICPDF网 联系我们和版权申明