MODEL: 18KDY
Rack-mounted DCS Signal Conditioners 18K-RACK
[2] OPTIONS
Power Switch
blank: None
CURRENT LOOP SUPPLY
Functions & Features
/S: With power switch
/SL: With power switch (with green LED)
• Powering a 4 – 20 mA DC current loop
• Shortcircuit protection
• Applicable to smart transmitters
• Usable as Isolator for 4 – 20 mA DC signals
• Module can be retracted without removing wiring for an
insulation test
GENERAL SPECIFICATIONS
Construction: Rack-mounted; terminal access via screw
terminals on the front and connector on the rear; terminal
cover provided
• Power switch optional
Connection
Input: M3.5 screw terminals (torque 0.8 N·m)
and connector
Typical Applications
• Various 2-wire transmitters
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
Zero adjustment: -5 to +5 % (front)
Span adjustment: 95 to 105 % (front)
SUPPLY OUTPUT
MODEL: 18KDY–A6[1]–R[2]
Output voltage: 24 – 28 V DC with no load
Current rating: ≤ 22 mA DC
• Shortcircuit Protection
ORDERING INFORMATION
• Code number: 18KDY-A6[1]-R[2]
Specify a code from below for each of [1] and [2].
(e.g. 18KDY-A66-R/SL)
Current limited: 35 mA max.
Protected time duration: No limit
INPUT SPECIFICATIONS
■ DC Current: Input resistor incorporated
INPUT
Current
A: 4 – 20 mA DC (Input resistance 276 Ω)
OUTPUT SPECIFICATIONS
The output goes below 0 % when the input is open.
OUTPUT 1
Voltage
INSTALLATION
Current consumption:
6: 1 – 5 V DC (Load resistance 2000 Ω min.)
Approx. 65 mA with voltage output
(approx. 70 mA with /SL)
[1] OUTPUT 2
Approx. 95 mA with current output
(approx. 100 mA with /SL)
Current
A: 4 – 20 mA DC (Load resistance 600 Ω max.)
Voltage
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)
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.)
18KDY SPECIFICATIONS
ES-0426 Rev.7 Page 1/3
http://www.m-system.co.jp/