MODEL: KWRS Plug-in Signal Conditioners K-UNIT RTD TRANSMITTER 5: Pt 50 Ω (JIS'81)

MODEL: KWRS Plug-in Signal Conditioners K-UNIT RTD TRANSMITTER 5: Pt 50 Ω (JIS'81)
MODEL: KWRS
Plug-in Signal Conditioners K-UNIT
5: Pt 50 Ω (JIS'81)
(Usable range: -200 to +500°C, -328 to +932°F; min.span: 100°C, 180°F)
6: Ni 508.4 Ω
RTD TRANSMITTER
(Usable range: -50 to +200°C, -58 to +392°F; min.span: 30°C, 54°F)
(two isolated outputs)
Functions & Features
• Accepting direct input from an RTD and providing
two standard process signals
• Linearization
• Burnout protection
• "Active bridge" circuit containing two constant current
sources allows large leadwire resistances up to 200 Ω
• Fast response type available
• High-density mounting
Typical Applications
• Long distance transmission between the RTD and the
transmitter
• Combination with intrinsic safety barriers
50
(1.97)
80
(3.15)
K-UNIT
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
132
(5.20)
mm (inch)
MODEL: KWRS–[1][2][3]–[4][5]
ORDERING INFORMATION
• Code number: KWRS-[1][2][3]-[4][5]
Specify a code from below for each [1] through [5].
(e.g. KWRS-4AA-B/BL/Q)
• Temperature range (e.g. 0 – 500°C)
• Special output ranges (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01)
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 RTD (2- or 3-wire)
1: JPt 100 (JIS'89)
(Usable range: -200 to +500°C, -328 to +932°F; min.span: 50°C, 90°F)
3: Pt 100 (JIS'89)
(Usable range: -200 to +650°C, -328 to +1202°F; min.span: 50°C, 90°F)
4: Pt 100 (JIS'97, IEC)
(Usable range: -200 to +650°C, -328 to +1202°F; min.span: 50°C, 90°F)
http://www.m-system.co.jp/
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
KWRS SPECIFICATIONS
ES-3537 Rev.6 Page 1/3
MODEL: KWRS
[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
OTHER OPTIONS
blank: none
/Q: Option other than the above (specify the specification)
SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface or DIN rail
Weight: 400 g (0.88 lbs)
PERFORMANCE in percentage of span
Accuracy: ±0.2 %
Temp. coefficient: ±0.02 %/°C (±0.01 %/°F)
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)
GENERAL SPECIFICATIONS
Construction: Plug-in
Connection: M3.5 screw terminals
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)
Linearization: Standard
INPUT SPECIFICATIONS
INPUT: 2- or 3-wire RTDs
Maximum leadwire resistance: 200 Ω per wire (3-wire)
Sensing current: 2 mA (Pt); 1 mA (Ni 508.4 Ω)
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)
http://www.m-system.co.jp/
KWRS SPECIFICATIONS
ES-3537 Rev.6 Page 2/3
MODEL: KWRS
DIMENSIONS unit: mm (inch)
CLAMP
(top & bottom)
20
(.79)
7.8 (.31)
DIN RAIL
35mm wide
8
7
6
5
2–4.5 (.18) dia.
MTG HOLE
25 (.98) deep
11–M3.5
SCREW
50 (1.97)
80 (3.15)
80 (3.15)
35.4 (1.39)
4
9
3
10 11
1
2
40 (1.57)
103 (4.06)
50 (1.97)
[3.3 (.13)]
132 (5.20)
• When mounting, no extra space is needed between units.
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
Burnout
RTD
A
B
B
4
5
6
Isolation
Reference
Resistor
2mA
Z
+ Differential
–
Amplifier
2mA
1 +
OUTPUT 1
2 –
Z
3
S
Output
Driver
Linearizer
9
S
Output
Driver
10 +
OUTPUT 2
11 –
7 U(+)
POWER
8 V(–)
Base Socket
Specifications are subject to change without notice.
http://www.m-system.co.jp/
KWRS SPECIFICATIONS
ES-3537 Rev.6 Page 3/3
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