Impulse DSCL23 User Manual
Industrial Loop Isolators and Transmitters
DSCL23
4-20mA Isolator with DC Supply - DIN or Panel Mount
Description
Each DSCL23 loop powered isolator provides 1 or 2 channels of analog signal
protection by electrically isolating its input from output for any DC process signal
in the range 4-20mA. The DSCL23 feeds isolated DC power to the field
transmitter and returns a fully isolated 4-20mA analog signal (see Figure 1).
The input signal is chopped by a proprietary DC chopper circuit, isolation is
provided by transformer coupling, a proprietary technique is used to suppress
transmission of common mode spikes or surges, and the output signal from the
secondary of the transformer is reconstructed to the original input signal.
DSCL
▲
Features
Feeds DC Power to 4-20mA Transmitter,
Isolates Loop
Simplified Wiring for Quick Install and
Signal Protection
DIN Rail or Panel Mountable
Narrow DIN Package, Mounts up to
27 Devices into a 19 Rack Space
No Recalibration or Maintenance Required
2300Vrms Transformer Isolation
Prevents Ground-Loop Problems
Prevents the Transfer of Interference
Voltages and Currents
High Accuracy Over Full Span
CE Compliant
Figure 1: DSCL23-01 Block Diagram, Single Channel Model
Visit our website www.dataforth.com
DSCL23
DSCL
169
Industrial Loop Isolators and Transmitters
DSCL
Specifications
Typical at TA=+25°C and +24VDC Power
Module DSCL23-01 DSCL23-02
Input Range
CMV Input to Output 2300Vrms, 1 Minute *
Accuracy ±0.1% Span Typical *
Non-linearity Included in Accuracy *
Stability <50ppm/°C *
Overshoot <20µA (Typical 5µA) *
Output Range
Bandwidth, -3dB 200Hz *
CMR (50Hz or 60Hz) 80dB *
NMR 20dB per Decade Above 200Hz *
Response Time 2ms, to 90% Span *
Output Noise <20mV p-p (Typical <5mV p-p) *
DC Power Source, Vi
Xmtr. Power Supplied, Vo
Environmental Weight Approx. 100g Weight Approx. 200g
Housing Material Lexan 940 (UL 94 V-O) *
Operating Temp Range -25°C to +55°C *
Storage Temp Range -40°C to +70°C *
Shock Test 50g (10 Shocks, 3 Axis) *
Relative Humidity 0 to 75% Noncondensing *
Emissions EN50081-2 (Radiated, Conducted) *
Immunity EN50082-2 (ESD, RF, EFT) *
(2)
from Xmtr 4-20mA *
±0.2% Span Max *
(1)
to System 4-20mA (50mA max) *
(120 kHz)
(1)
12-30VDC (24V nom) *
(2)
>19.3VDC at 20mA *
and 24V Power Vi
Ordering Information
Model Channels Input Range Output Range Figure
DSCL23-01 1 4-20mA 4-20mA 2
DSCL23-02 2 4-20mA 4-20mA 3
NOTES:
*Same specification as DSCL23-01
(1) At connection between isolator and Power Supply
(2) At connection between isolator and 2-Wire Transmitter.
Dimensional and Wiring Information
The DSCL23 DIN mount package accepts EN50022 (35 x 7.5) type rails;
Dataforth PN SCMXRAIL1-xx. Both DSCL models may be adapted for screw
mounting to wall or panel.
Multiple DSCL23 modules may be mounted next to each other without effecting
input or output signals. The compact and narrow 17.5mm housing allows for up
to 27 devices in a 19 rack space. The DSCL23 may be mounted in any position.
Screw terminals with wire protection clamps sized for 2 x 0.75mm
wires.
The DSCL23 requires no maintenance.
2
or 1 x 2.5mm
2
170
For information call 800-444-7644
Loading...