ES-0463 Rev.3
18KJT
Rack-mounted DCS Signal Conditioners 18K-RACK
THERMOCOUPLE CONVERTER
(field-programmable)
Functions & Features
• Module can be retracted without removing wiring for an insulation test
• Input specifications (thermocouple type and range) are freely configurable via programming unit
MODEL: 18KJT–[1]66–R[2]
ORDERING INFORMATION
• Code number: 18KJT-[1]66-R[2]
Specify a code from below for each of [1] and [2].
(e.g. 18KJT-266-R/BL)
• 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.
[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)
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
OUTPUT 1
Voltage
6
: 1 – 5 V DC (Load resistance 2000 Ω min.)
OUTPUT 2
Voltage
6
: 1 – 5 V DC (Load resistance 2000 Ω min.)
POWER INPUT
DC Power
R
: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
[2] OPTIONS
Burnout
blank
: Upscale burnout
/BL
: Downscale burnout
/BN
: No burnout
RELATED PRODUCTS
• Programming Unit (model: PU-2x)
• PC configurator software (model: JXCON)
Downloadable at our 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.
GENERAL SPECIFICATIONS
Construction
: Rack-mounted; terminal access via screw terminals on the front and connector on the rear; terminal cover provided
Connection
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 +120 % at 1 – 5 V
Linearization
: Standard
Cold junction compensation
: CJC sensor attached to the field terminals
Adjustments
: Programming Unit (model: PU-2x);
(Refer to the users manual of JXCON for the adjustments configurable with JXCON.)
• T/C type
• temp. range
• zero and span
• simulating output
• Others
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 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)
Temp. coefficient
: ±0.015 %/°C (±0.008 %/°F)
Response time
: ≤ 0.8 sec. (0 – 90 %)
Burnout response
: ≤ 10 sec.
Line voltage effect
: ±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)
EXTERNAL DIMENSIONS unit: mm [inch]
TERMINAL ASSIGNMENTS
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM