ES-3597 Rev.5
KWLD
Plug-in Signal Conditioners K-UNIT
CURRENT LOOP SUPPLY
(for level transmitter use)
Functions & Features
• Powering a 4 – 20 mA DC current loop
• Shortcircuit protection
• Applicable to smart transmitters
• Usable as 4 – 20 mA isolator
• Wide span adjustment range
• High-density mounting
MODEL: KWLD–A6–[1][2]
ORDERING INFORMATION
• Code number: KWLD-A6-[1][2]
Specify a code from below for each of [1] and [2].
(e.g. KWLD-A6-B/Q)
• Specify the specification for option code /Q
(e.g. /C01/S01)
INPUT
Current
4 – 20 mA DC (Input resistance 250 Ω)
OUTPUT 1
Current
A
: 4 – 20 mA DC (Load resistance 600 Ω max.)
OUTPUT 2
Voltage
6
: 1 – 5 V DC (Load resistance 5000 Ω min.)
[1] 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
[2] OPTIONS
blank
: none
/Q
: With options (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 +110 %
Zero adjustment
: ±10 % of the input 4 – 20 mA (front)
Output 2 zero adjustment
: ±2 % of the calibrated range (front)
Span adjustment
: 10 – 100 % of the input 4 – 20 mA (front)
Output 2 span adjustment
: ±2 % of the calibrated range (front)
Coarse span adjustment:
Rotary switch (front)
Loop test switch:
Supply output is removed with OFF.
SUPPLY OUTPUT
(Across the terminals 4 – 5)
Output voltage
: 24 – 28 V DC with no load
18 V DC min. at 20 mA
Current rating
: ≤ 22 mA DC
•
Shortcircuit Protection
Current limited
: 30 mA max.
Protected time duration
: No limit
INPUT SPECIFICATIONS
■
DC Current
: Input resistor incorporated
INSTALLATION
Power input
•
AC
: Operational voltage range: rating ±10 %,
50/60 ±2 Hz, approx. 3.5 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
: ±0.1 % (Coarse span adjustment SW set to ‘0’)
Temp. coefficient:
±0.02 %/°C (±0.01 %/°F) (Coarse span adjustment SW set to ‘0’)
Response time
: ≤ 0.2 sec. (0 – 90 %)
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 1 or output 2 to power to ground)
1000 V AC @1 minute (output 1 to output 2)
EXTERNAL VIEW
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM