Moore Industries ECT User manual

ECT[DIN]
ECT[DIN]
4-Wire Isolator, Converter, Repeater,
and Splitter in an Aluminum Housing
May 2016
206-735-00D
4-Wire Isolator, Converter, Repeater, and Splitter in an Aluminum Housing

Table of Contents
Introduction........................................................................................................ 3
Specifications .................................................................................................... 3
Dimensions ........................................................................................................ 5
Ordering Information......................................................................................... 4
Dimensions ........................................................................................................ 5
Calibration.......................................................................................................... 7
Calibration Setup...............................................................................................................7
Calibration Procedure........................................................................................................7
Calibration Diagrams.........................................................................................................8
Installation........................................................................................................ 10
Electrical Connections.....................................................................................................10
Recommended Ground Wiring Practices ........................................................................11
CE Conformity.................................................................................................................11
Installation Diagrams.......................................................................................................12
Hazardous Locations ......................................................................................................15
Customer Support........................................................................................... 15

ECT
The Interface Solution Experts 3
4-Wire Isolator, Converter, Repeater,
and Splitter in an Aluminum Housing
Introduction
This is the user’s manual for Moore Industries’ line of
4-wire, Economy Signal Isolator/Converters, the ECT
[DIN]. Available in configurations that accept a variety
of inputs, the principal function of the ECT family
of products is to provide low cost isolation between
instruments at either end of a process loop.
ECTs furnish up to 1500Vrms isolation between
transmitting and receiving devices.
The ECT can also function as a low-cost signal
converter or splitter. Configurations accommodate a
single input and your choice of one or two accurate
outputs. Dual inputs and dual outputs are also
available. Inputs and outputs are available in a variety
of industry standard ranges. Refer to the Ordering
Information table for more information.
The ECT is a highly cost-effective means of protecting
process signals from distortions associated with
ground loops, motor noise, and other common types of
electrical interference.
Performance Accuracy: ±0.1% of span
Stability:
±0.2% of reading per year
Isolation: WITHOUT -RF
OPTION: 1500Vrms between
input, ouput and power;
WITH -RF OPTION: 500Vrms
between input and output,
1500Vrms power terminals
Output Response Time:
DC Input, 100msec, maximum
to 99% of output; AC Input,
400msec, maximum, from
0-99% of output
DC Input Resistance:
50 ohms
Ripple: 10mV peak-to-peak
maximum measured across
250 ohm resistor
Load Effect: Current outputs,
0.01% of span from 0 to
maximum load
Power Supply Effect:
Exceeds 90db for current
input unit
Performance
(continued)
Ambient
Conditions
Maximum Input
Overrange: Current inputs,
250% of full scale; DC
Voltage inputs, 150% of full
scale
Burden: 1V maximum
with 4-20mA input; 0.01V
maximum with 0-5A input
Output Current Limiting:
25mA, typical; 30mA,
maximum
Operating Range:
-40°C to +85°C
(-40°F to +185°F)
Storage Range:
-40°C to +85°C
(-40°F to +185°F)
Ambient Temperature
Effect: ±0.007% of span/°C,
typical; ±0.015% of span/°C,
maximum
Relative Humidity:
0-95% non-condensing
RFI/EMI Protection:
WITHOUT -RF OPTION:
Less than ±0.1% of span
error when tested at
10V/m@20-1000MHZ
WITH -RF OPTION: Less
than ±0.1% of span error
when tested at
30V/m@20-1000MHZ
Common Mode
Rejection:
Exceeds 95 dB@60Hz
with a limit of 1500Vrms
Front panel potentiometer
Span: ±10%
Zero: ±5%
(non-interactive when span
is set first)
Single I/O Channel:
384g (13.7oz) maximum
Dual I/O Channel:
431g (15.4 oz) maximum
Ambient
Conditions
(Continued)
Adjustments
Weight
Specifications

ECT
4 The Interface Solution Experts
4-Wire Isolator, Converter, Repeater,
and Splitter in an Aluminum Housing
Ordering Information
When ordering, specify: Unit / Input / Output / Power / Options [Housing]
Model number example: ECT / 0-5AAC / 4-20MA / 117AC / -RF [DIN]
Input
SINGLE INPUT
CHANNEL:
4-20MA
into 25 ohms
10-50MA
into 10 ohms
1-5V into 1 Mohm
0-10V into 1 Mohm
0-150AC
into 100 kohms
0-250AC
into 160 kohms
0-5AAC
into 0.002 ohms
(Other AC ranges also
available)
DUAL INPUT
CHANNELS:
2X4-20MA
into 25 ohms
2X1-5V into 1 Mohm
2X0-10V into 1 Mohm
Output
SINGLE OUTPUT
CHANNEL:
4-20MA
into 1000 ohms
0-10V into 5 kohms
minimum
DUAL OUTPUT
CHANNELS
(Signal Splitter):
2X4-20MA into
600 ohms
DUAL OUTPUT
CHANNELS:
2X4-20MA
into 600 ohms
2X1-5V into
5 kohms minimum
2X0-10V into
5 kohms minimum
Power
24DC, ±10%
117AC,
50/60Hz, ±10%
230AC,
50/60Hz, ±10%
(3 watts maximum
for single channel
models; 5 watts
maximum for dual
channel models)
Option
-EM Externally-mounted input
transformer for current input
(available with 0-5Aac input
only)
-TX 24V transmitter excitation
for powering a 2-wire
transmitter (Available on
4-20MA input/output models
only; standard on 2X4-20MA
models)
-RF Enhanced RFI/EMI
protection provides
30V/m@20-1000MHZ
protection with less than
±0.1% of span error (-EM
option required for AC current
input)
Housing
DIN Aluminum,
DIN-style housing
mounts on 32mm
G-type (EN50035)
and 35mm Top Hat
(EN50022) rails
FLB2 Externally-
mounted flange
provides a secure
mount and
ensures resistance
to vibration
Options
The following paragraphs describe the options
available with the ECT family of transmitters:
• EM–ExternallyMountedTransformer, for use
with the 0-5Aac input configuration, this option
consists of a toroidal transformer that physically
separates high-level current input from the
receiving device in a process loop. This provides
the added convenience of allowing the servicing
of receivers without having to interrupt process
signals.
• TX–TransmitterExcitation, available for use
with the 4-20mA input configuration, TX-equipped
ECTs provide power for a 2-wire transmitter in
the process loop, eliminating the need to provide
separate power supplies for the non-isolated
transmitters.
• RF–RFI/EMIProtection, available for use with
our aluminum housings, this option provides
you with outstanding protection against RFI and
EMI interference. Units with the -RF option are
provided with 30V/m@20-1000MHZ protection
with less than ±0.1% of span error (requires -EM
option for AC current input)
Unit
ECT
4-Wire
(Line/
Mains)
Economy
Isolator,
Converter,
Repeater,
and
Splitter

ECT
The Interface Solution Experts 5
4-Wire Isolator, Converter, Repeater,
and Splitter in an Aluminum Housing
Figure 1. Dimensions of the aluminum-housed ECT and ECT Splitter [DIN]
80mm
(3.2 in)
130mm
(5.1 in)
SIDE VIEW
80mm
(3.2 in)
45mm
(1.8 in)
ECT
SIGNAL
ISOLATOR
CONVERTER
SPAN
SPAN
ZERO
ZERO
+IN -IN
A
B
ABAC
+OUT-OUT+OUT-OUT
ACCGND
+TX
FRONT VIEW
4-WIRE SPLITTER
110mm
(4.3 in)
ECT
SIGNAL ISOLATOR/
CONVERTER
CT/PT CT/PT
SPAN
ZERO
+OUT –OUT
36mm
(1.4 in)
AC ACC GND
FRONT VIEW
4-WIRE ECT
ECT
DUAL
SIGNAL
ISOLATOR
CONVERTER
SPAN
SPAN
ZERO
ZERO
A
B
ABAC
+OUT-OUT +OUT-OUT
ACCGND
+TX +IN -IN +TX +IN -IN
A B
80mm
(3.2 in)
51mm
(2.0 in)
FRONT VIEW
DUAL I/O

ECT
6 The Interface Solution Experts
4-Wire Isolator, Converter, Repeater,
and Splitter in an Aluminum Housing
Key Definition
A Channel 1 on dual output models
B Channel 2 on dual output models
AC AC line power input
ACC AC line power return (neutral)
CT/PT Current Transformer/Potential Transformer input
DC +DC power input
DCC -DC power input
GND Ground
IN Input signal (+ or -)
OUT Output signal (+ or -)
-TX Transmitter excitation for powering 2-wire transmitter
DC Power Single Input/Dual Outputs & -TX +TX +IN -IN A +OUT A -OUT B +OUT B -OUT DC DCC GND
Table 1. Terminal Designations for 4-Wire Units
4-Wire (Line/Mains-Powered) Top Terminals Bottom Terminals
Models (left to right) (left to right)
Power with AC Input or -EM Option CT/PT CT/PT +OUT -OUT AC ACC GND
AC Power with -TX Option +TX +IN -IN +OUT -OUT AC ACC GND
AC Power Single Input/Dual Outputs & -TX +TX +IN -IN A +OUT A -OUT B +OUT B -OUT AC ACC GND
Power with DC Input or -EM Option CT/PT CT/PT +OUT -OUT DC DCC GND
T1 T2 T3 B1 B2 B3 B4 B5 B6 B7 B8
DC Power with -TX Option +TX +IN -IN +OUT -OUT DC DCC GND
T1 T2 T3 B1 B2 B3 B4 B5 B6
T1 T 2 T3 T4 T5 T6 T7 T8 T9 B1 B2 B3 B4 B5 B6 B7 B8 B9
Table 2. Terminal Designations for 4-Wire Dual I/O Units
AC Power & Dual Inputs/Dual Outputs
DC Power & Dual Inputs/Dual Outputs
4-Wire (Line/Mains-Powered)
Dual I/O Models
Top Terminals
(left to right)
Bottom Terminals
(left to right)
DC DCC GND
A +TX A +IN A -IN B +TX B +IN B -IN A +OUT A -OUT B +OUT B -OUT
AC ACC GND
A +TX A +IN A -IN B +TX B +IN B -IN A +OUT A -OUT B +OUT B -OUT

ECT
The Interface Solution Experts 7
4-Wire Isolator, Converter, Repeater,
and Splitter in an Aluminum Housing
Calibration
Prior to shipment, every ECT is subjected to rigorous
testing by our team of skilled technicians. Every
product Moore Industries manufactures, sells and
services is guaranteed to meet the strict quality
standards that have become synonymous with our
company name.
Before placing your ECT into service, a bench check
of basic operation is recommended to ensure that the
unit hasn’t sustained any damage during transit, and to
set zero and span points for your application.
Every unit should be:
• CheckedtoverifythattheappropriateECT
model has been ordered for the intended
application.
• Connectedinacalibrationsetup(described
later in this section) and checked for desired
output.
• Adjustedfordesiredzeroandspan.
Table 3. Gathering the equipment for 4-wire ECT calibration
Voltage/Current
Calibrator
Power
Supply
Load
Resistor
Multimeter
Screwdriver
Adjustable, calibrated to an accuracy
of ±0.025% (EDC Model CR 103 or
MV 105 or equivalent)
Rotek Model 811A (or equivalent)
recommended for calibrating
AC input units.
Calibrated, 24Vdc, ±10%, nominal
250 ohms (±0.01%) precision
Calibrated to an accuracy of ±0.025%,
minimum (Keithley Model 197,
or Fluke Model 8840 or 8842 or
equivalent)
Standard (Blade-type), head width
3.1mm (0.125 in), maximum
Device Specifications
Calibration Setup
Table 3 lists the equipment you will need to bench
check the ECT. These materials are not supplied by
Moore Industries, but should be available in those
environments suited for calibration and maintenance of
electronic instruments.
Figures 2 through 5 show the calibration setups for
each type of ECT. Moore Industries recommends
that the procedures in this section be carried out
at a technician’s bench or in a similar, lab-type
environment. Do not calibrate the ECT in the field or
installed in the application.
Calibration Procedure
With the unit incorporated into the setup described in
the appropriate Figure (2, 3, 4 or 5):
1. Apply the appropriate power to the ECT.
2. Set the Voltage or Current Calibrator to 100%
span (full scale input) for the type of ECT being
calibrated. For example, 20mA for a
4-20mA input unit or 5V for a 1-5V input unit.
3. Adjust the Span potentiometer (pot) until
the multimeter reads 20mA, plus/minus the
stated accuracy specification. If measuring
the voltage drop across the precision resistor,
adjust the pot until output is 5V, plus/minus the
stated accuracy specification.
4. Set the Calibrator to 0% of the rated span for
the type of ECT being calibrated. For example,
4mA for a 4-20mA input unit or 1V for a 1-5V
input unit.
5. Adjust the Zero pot until the multimeter
reads 4mA, plus/minus the stated accuracy
specification. If measuring the voltage drop
across the precision resistor, adjust the
pot until output is 1V, plus/minus the stated
accuracy specification.
6. Repeat steps 2 through 5 for each channel
until the ECT output or the voltage across the
resistor is stable at both 0 and 100% of rated
input span.

ECT
8 The Interface Solution Experts
4-Wire Isolator, Converter, Repeater,
and Splitter in an Aluminum Housing
ECT
SIGNAL ISOLATOR/
CONVERTER
SPAN
ZERO
+OUT –OUT
AC
CURRENT
SOURCE
OR
CT/PT CT/PT
+OUT –OUT
250
OHMS
VOLTMETER
+–
IF DESIRED, MEASURE VOLTAGE
DROP ACROSS A 250 OHM
PRECISION RESISTOR.
1-5V = 4-20MA
MULTIMETER
(CURRENT OR
VOLTAGE)
+
–+
–
24VDC OR
117VAC OR 230VAC
POWER
SOURCE
GND
(CHECK MODEL NUMBER
FOR UNIT CONFIGURATION)
+
–
24VDC OR
117VAC OR 230VAC
POWER
SOURCE
GND
(CHECK MODEL NUMBER
FOR UNIT CONFIGURATION)
Figure 3. Calibrating the 4-wire ECT equipped with the -EM option
+OUT –OUT
ECT
SIGNAL ISOLATO R/
CONVERTER
+IN –IN
SPAN
ZERO
+OUT –OUT
250
OHMS
VOLTMETER
+–
MULTIMETER
(CURRENT OR
VOLTAGE)
CURRENT
OR
VOLTAGE
CALIBRATOR
+–
+
–
+
–
OR
IF DESIRED, MEASURE VOLTAGE
DROP ACROSS A 250 OHM
PRECISION RESISTOR.
1-5V = 4-20MA
24VDC OR
117VAC OR 230VAC
POWER
SOURCE
GND
(CHECK MODEL NUMBER
FOR UNIT CONFIGURATION)
+
–
24VDC OR
117VAC OR 230VAC
POWER
SOURCE
GND
(CHECK MODEL NUMBER
FOR UNIT CONFIGURATION)
Figure 2. Calibrating the 4-wire ECT

ECT
The Interface Solution Experts 9
4-Wire Isolator, Converter, Repeater,
and Splitter in an Aluminum Housing
ECT
DUAL
SIGNAL
ISOLATOR
CONVERTER
SPAN
SPAN
ZERO
ZERO
A
B
AB
+OUT-OUT +OUT-OUT
+TX +IN -IN +TX +IN -IN
A B
AB
+OUT-OUT +OUT-OUT
+– +–
+–
MULTIMETER
(CURRENT OR
VOLTAGE)
250
OHMS
VOLTMETER
+
–
VOLTMETER
+–
250
OHMS
OR
USE TWO METERS
OR CALIBRATE ONE
CHANNEL AT A TIME
USE TWO METERS
OR CALIBRATE ONE
CHANNEL AT A TIME
CURRENT
OR
VOLTAGE
CALIBRATOR
CURRENT
OR
VOLTAGE
CALIBRATOR
IF DESIRED, MEASURE VOLTAGE
DROP ACROSS A 250 OHM
PRECISION RESISTOR.
1-5V = 4-20MA
MULTIMETER
(CURRENT OR
VOLTAGE)
+
–+
–
24VDC OR
117VAC OR 230VAC
POWER
SOURCE
GND
(CHECK MODEL NUMBER
FOR UNIT CONFIGURATION)
+
–
24VDC OR
117VAC OR 230VAC
POWER
SOURCE
GND
(CHECK MODEL NUMBER
FOR UNIT CONFIGURATION)
Figure 5. Calibrating the Dual I/O configured ECT
+OUT-OUT+OUT-OUT
ECT
SIGNAL
ISOLATOR
CONVERTER
SPAN
SPAN
ZERO
ZERO
+IN -IN
A
B
AB
+OUT-OUT+OUT-OUT
250
OHMS
VOLTMETER
+–
OR
CURRENT
OR
VOLTAGE
CALIBRATOR
+–
USE TWO METERS
OR CALIBRATE ONE
CHANNEL AT A TIME
+TX
IF DESIRED, MEASURE VOLTAGE
DROP ACROSS A 250 OHM
PRECISION RESISTOR.
1-5V = 4-20MA
NOTE:
MULTIMETER
(CURRENT OR
VOLTAGE)
+
–+
–
24VDC OR
117VAC OR 230VAC
POWER
SOURCE
GND
(CHECK MODEL NUMBER
FOR UNIT CONFIGURATION)
+
–
24VDC OR
117VAC OR 230VAC
POWER
SOURCE
GND
(CHECK MODEL NUMBER
FOR UNIT CONFIGURATION)
Figure 4. Calibrating the 4-wire ECT Channel Splitter

ECT
10 The Interface Solution Experts
4-Wire Isolator, Converter, Repeater,
and Splitter in an Aluminum Housing
Installation
Figure 1 shows the physical dimensions of the 4-wire
ECT family. To install an ECT, set the appropriate lip
on the top edge of the DIN rail and pivot downward
until the unit snaps into place.
Electrical Connections
Figures 6 through 11 show typical types of 4-wire ECT
installations. Simply hookup the ECT in the directed
manner, making sure to notice any pertinent notes.
WARNING:
Terminals on this unit may be connected to
hazardous voltages. Before making ANY
connections to this unit, always remove power from
the loop or instrument power terminals.
Installation Category
All terminals are rated CAT I.
Equipment Ratings
The ECT does not generate hazardous voltages, it
provides different current or voltage inputs, including
4-20mA, 10-50mA, 1-5V, 0-10V, 0-150AC, 0-250AC,
and 0-5AAC range and 4-20mA or 0-10V range
outputs. Products connected to the ECT should be
designed to receive this type of input.
WARNING:
If this unit is used in a manner not specified by
Moore Industries, the protection provided by the
equipment may be impaired.
Switches and Circuit Breakers
For ECT AC powered units, a switch or circuit breaker
must be wired in series with the AC power conductors.
The switch or circuit breaker used must be located
within three meters of the unit.
The circuit breaker or switch will only remove power to
the unit, hazardous voltages may still be connected to
other terminals on the unit.
117Vac, 230Vac, and 24Vdc Supply Wiring
All power connections should be made with 12 or 14
AWG (3.3mm2or 2mm2) wire.
The end of each conductor should be stripped no
more than 0.25in (7mm). The end of the stripped wire
should be tinned with solder, or inserted into a ferrule
and crimped before being placed into a terminal block.
Tighten the screws on the terminal block to 5.0 - 7.0
lbf•in (0.56 - 0.79 N•m).
Input/Output Wiring
The Input/Output connections can be made with 12 to
24 AWG (3.3mm2to 0.2mm2) wire.
The end of each conductor should be stripped no more
than 0.25in (7mm).
Tighten the screws on the terminal block to 5.0 - 7.0
lbf•in (0.56 - 0.79 N•m).
Protective Earth Conductor
The Protective Earth Conductor shall be of equal or
larger size wire than the other two power conductors.
The Protective Earth Conductor shall be the first
conductor connected to the unit when the unit is being
wired. It shall be the last conductor removed when the
unit is being un-wired.