18JT-266-R/BN [MSYSTEM]
Rack-mounted DCS Signal Conditioners 18-RACK;
| 型号： | 18JT-266-R/BN |
| 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：97K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MODEL: 18JT
5: T (CC) (Usable range -270 to +400°C, -454 to +752°F)
6: B (RH) (Usable range 0 to 1820°C, 32 to 3308°F)
7: R (Usable range -50 to +1760°C, -58 to +3200°F)
8: S (Usable range -50 to +1760°C, -58 to +3200°F)
N: N (Usable range -270 to +1300°C, -454 to +2372°F)
0: Specify
Rack-mounted DCS Signal Conditioners 18-RACK
THERMOCOUPLE CONVERTER
(field-programmable)
Functions & Features
• Accepting direct input from a thermocouple and providing
two standard process signals
OUTPUT 1
• Microprocessor based
Voltage
• Field-programmable T/C type and temperature range
• Linearization
6: 1 – 5 V DC (Load resistance 2000 Ω min.)
• Burnout protection
• High accuracy cold junction compensation
• Loop testing via hand-held programmer PU-2x
• Second channel output available at the front terminals
and at the Standard Rack connector
OUTPUT 2
Voltage
6: 1 – 5 V DC (Load resistance 2000 Ω min.)
POWER INPUT
Typical Applications
DC Power
• Ideal for quick spare part
R: 24 V DC
• High-accuracy cold junction compensation benefits narrow
span measurements
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
• 0.1μA burnout sensing enables long distance transmission
with minimum offset drifts
[2] OPTIONS
Burnout
• Electric furnace (isolation)
• No burnout type can connect to a single T/C in parallel
with a recorder
blank: Upscale burnout
/BL: Downscale burnout
/BN: No burnout
RELATED PRODUCTS
• Programming Unit (model: PU-2x)
• PC configurator software (model: JXCON)
Downloadable at M-System’s web site.
A dedicated cable is required to connect the module to the
PC. Please refer to the internet software download site or
the users manual for the PC configurator for applicable
cable types.
MODEL: 18JT–[1]66–R[2]
GENERAL SPECIFICATIONS
Construction: Rack-mounted; terminal access via screw
terminals on the front and connector on the rear; terminal
cover provided
ORDERING INFORMATION
• Code number: 18JT-[1]66-R[2]
Specify a code from below for each of [1] and [2].
(e.g. 18JT-266-R/BL)
Connection
• Temperature range (e.g. 0 – 800°C)
Default setting will be used if not otherwise specified.
K thermocouple setting will be used if the input code is not
specified.
Input: M3.5 screw terminals (torque 0.8 N·m)
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 +120 % at 1 – 5 V
Linearization: Standard
[1] INPUT THERMOCOUPLE
1: (PR) (Usable Range 0 to 1760°C, 32 to 3200°F)
2: K (CA) (Usable range -270 to +1370°C, -454 to +2498°F)
3: E (CRC) (Usable range -270 to +1000°C, -454 to +1832°F)
4: J (IC) (Usable range -210 to +1200°C, -346 to +2192°F)
Cold junction compensation: CJC sensor attached to the
18JT SPECIFICATIONS
ES-1863 Rev.9 Page 1/3
http://www.m-system.co.jp/
MODEL: 18JT
input terminals
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)
Adjustments: Programming Unit (model: PU-2x);
Response time: ≤ 0.8 sec. (0 – 90 %)
Burnout response: ≤ 10 sec.
(Refer to the users manual of JXCON for the adjustments
configurable with JXCON.)
• T/C type
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 1 or output 2 or power)
500 V AC @ 1 minute
• temp. range
• zero and span
• simulating output
• Others
(output 1 to output 2 to power)
1500 V AC @ 1 minute
(input or output or power to ground)
INPUT SPECIFICATIONS
Minimum span: 3 mV
Offset: Max. 3 times span
Input resistance: 20 kΩ min.
Burnout sensing: 0.1 μA
Minimum span
(PR): 370°C, 670°F
K (CA): 75°C, 140°F
E (CRC): 50°C, 90°F
J (IC): 60°C, 110°F
T (CC): 75°C, 140°F
B (RH): 780°C, 1410°F
R: 360°C, 650°F
S: 380°C, 690°F
N: 110°C, 200°F
Note: The described accuracy may be partially not satisfied
when the temperature ranges below 0°C. Consult factory.
If not specified, the input range is shown below.
(PR): 0 to 1600°C
K (CA): 0 to 1000°C
E (CRC): 0 to 500°C
J (IC): 0 to 500°C
T (CC): 0 to 300°C
B (RH): 0 to 1800°C
R: 0 to 1600°C
S: 0 to 1600°C
N: 0 to 1000°C
INSTALLATION
Current consumption: Approx. 60 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
Accuracy: ±0.1 %
Linearization accuracy: ±0.05 %
Cold junction compensation error: ±0.5°C or ±0.9°F
(at 20°C ±10°C or 68°F ±18°F)
18JT SPECIFICATIONS
ES-1863 Rev.9 Page 2/3
http://www.m-system.co.jp/
MODEL: 18JT
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
1
6
2
3
4
CJC SENSOR (model: CJM)
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
comp. leadwire
Z
S
Isolation
T / C
+
Low Drift
Amplifier
Digital
Computation
Output
Driver
+
1
5
6
+
–
OUTPUT 2
–
metal leg
–
Output
Driver
2
3
4
7
8
CJC
SENSOR
OUTPUT 1
OUTPUT 2
POWER
model: CJM
Burnout
MODULAR JACK
PU-2x
SERIAL TRANSMISSION LINE
Specifications are subject to change without notice.
18JT SPECIFICATIONS
ES-1863 Rev.9 Page 3/3
http://www.m-system.co.jp/
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