ES-3532 Rev.10
KWTS
Plug-in Signal Conditioners K-UNIT
THERMOCOUPLE TRANSMITTER
(two isolated outputs)
Functions & Features
• Accepting direct input from a thermocouple and providing two standard process signals
• 7-segment linearization
• Burnout protection
• High-accuracy cold junction compensation
• Isolation up to 2000 V AC
• Fast response type available
• High-density mounting
Typical Applications
• High-accuracy cold junction compensation benefits narrow span measurements
• 0.1 μA burnout sensing enables long distance transmission with minimum offset drifts
• Electric furnace (isolation)
• No burnout type can connect to a single T/C in parallel with a recorder
MODEL: KWTS–[1][2][3]–[4][5]
ORDERING INFORMATION
• Code number: KWTS-[1][2][3]-[4][5]
Specify a code from below for each of [1] through [5].
(e.g. KWTS-2AA-B/BL/Q)
• Temperature range (e.g. 0 – 800°C)
• Special output ranges (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01/S01)
Note: When the user requires a current and a voltage output, specify the current to be the Output 1 which allows a greater load.
[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
[2] OUTPUT 1
Current
A
: 4 – 20 mA DC (Load resistance 600 Ω max.)
B
: 2 – 10 mA DC (Load resistance 1200 Ω max.)
C
: 1 – 5 mA DC (Load resistance 2400 Ω max.)
D
: 0 – 20 mA DC (Load resistance 600 Ω max.)
E
: 0 – 16 mA DC (Load resistance 750 Ω max.)
F
: 0 – 10 mA DC (Load resistance 1200 Ω max.)
G
: 0 – 1 mA DC (Load resistance 12 kΩ max.)
Z
: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
1
: 0 – 10 mV DC (Load resistance 10 kΩ min.)
2
: 0 – 100 mV DC (Load resistance 100 kΩ min.)
3
: 0 – 1 V DC (Load resistance 1000 Ω min.)
4
: 0 – 10 V DC (Load resistance 10 kΩ min.)
5
: 0 – 5 V DC (Load resistance 5000 Ω min.)
6
: 1 – 5 V DC (Load resistance 5000 Ω min.)
0
: Specify voltage (See OUTPUT SPECIFICATIONS)
[3] OUTPUT 2
Current
A
: 4 – 20 mA DC (Load resistance 350 Ω max.)
B
: 2 – 10 mA DC (Load resistance 700 Ω max.)
C
: 1 – 5 mA DC (Load resistance 1400 Ω max.)
D
: 0 – 20 mA DC (Load resistance 350 Ω max.)
E
: 0 – 16 mA DC(Load resistance 430 Ω max.)
F
: 0 – 10 mA DC (Load resistance 700 Ω max.)
G
: 0 – 1 mA DC (Load resistance 7000 Ω max.)
Z
: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
Same range availability as Output 1
[4] POWER INPUT
AC Power
B
: 100 V AC
C
: 110 V AC
D
: 115 V AC
F
: 120 V AC
G
: 200 V AC
H
: 220 V AC
J
: 240 V AC
DC Power
S
: 12 V DC
R
: 24 V DC
[5] OPTIONS (multiple selections)
Response Time (0 – 90 %)
blank
: Standard (≤ 0.5 sec.)
/K
: Fast Response (Approx. 25 msec.)
Burnout
blank
: Upscale burnout
/BL
: Downscale burnout
/BN
: No burnout
Other Options
blank
: none
/Q
: Option other than the above (specify the specification)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
TERMINAL SCREW MATERIAL
/S01
: Stainless steel
GENERAL SPECIFICATIONS
Construction
: Plug-in
Connection
: M3.5 screw terminals
Screw terminal
: Chromated steel (standard) or stainless steel
Housing material
: Flame-resistant resin (black)
Isolation
: Input to output 1 to output 2 to power
Overrange output
: Approx. -10 to +120 % at 1 – 5 V
Zero adjustment
: -5 to +5 % (front)
Span adjustment
: 95 to 105 % (front)
Adjustable individually for each output 1 and output 2.
At burnout
: Downscale ≤ -10 %, Upscale ≥ 110 %
Linearization
: Standard
Cold junction compensation
: CJC sensor attached to the
input terminals
INPUT SPECIFICATIONS
Minimum span
: 3 mV
Offset
: Max. 1.5 times span
Input resistance
: 30 kΩ min.
Burnout sensing
: 0.1 μA
Minimum span (in °C)
(PR)
: min. span 370°C
K (CA)
: min. span 75°C
E (CRC)
: min. span 50°C
J (IC)
: min. span 60°C
T (CC)
: min. span 75°C
B (RH)
: min. span 780°C
R
: min. span 360°C
S
: min. span 380°C
N
: min. span 110°C
Minimum span (in °F)
(PR)
: min. span 670°F
K (CA)
: min. span 140°F
E (CRC)
: min. span 90°F
J (IC)
: min. span 110°F
T (CC)
: min. span 140°F
B (RH)
: min. span 1410°F
R
: min. span 650°F
S
: min. span 690°F
N
: min. span 200°F
Note: The described accuracy may be partially not satisfied when the temperature ranges below 0°C. Consult factory.
OUTPUT SPECIFICATIONS
■ DC Current
: 0 – 20 mA DC
Minimum span
: 1 mA
Offset
: Max. 1.5 times span
Load resistance
: Output drive 12 V max. for Output 1;
7 V max. for Output 2
■
DC Voltage
: -10 – +12 V DC
Minimum span
: 5 mV
Offset
: Max. 1.5 times span
Load resistance
: Output drive 1 mA max. at ≥ 0.5 V
INSTALLATION
Power input
•
AC
: Operational voltage range: rating ±10 %,
50/60 ±2 Hz, approx. 3 VA
•
DC
: Operational voltage range: rating ±10 %
ripple 10 %p-p max., approx. 3 W (125 mA at 24 V)
Operating temperature
: -5 to +55°C (23 to 131°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Surface or DIN rail
Weight
: 400 g (0.88 lb)
PERFORMANCE in percentage of span
Accuracy
: ±0.3 % (at over 400°C or 750°F for R, S
and PR; over 770°C or 1420°F for B)
Cold junction compensation error
(at 20°C ±10°C or 68°F ±18°F)
K, E, J, T, N
: ±0.5°C or ±0.9°F
S, R, PR
: ±1°C or ±1.8°F
Temp. coefficient
: ±0.02 %/°C (±0.01 %/°F)
(at over 400°C or 750°F for R, S and PR;
over 770°C or 1420°F for B)
Burnout response
: ≤ 10 sec.
Line voltage effect
: ±0.1 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 2000 V AC @1 minute
(input to output to power to ground)
1000 V AC @ 1 minute (output 1 to output 2)
EXTERNAL DIMENSIONS unit: mm [inch]
TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM