Omega Products iDRA Installation Manual

User’s Guide

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iDRA Monitor

iDRA0x-AL Limit Alarm

DIN Rail Temperature/Process

with Isolated Analog Output

It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply.
OMEGA is constantly pursuing certification of its products to the European New Approach Directives. OMEGA will add the CE mark
to every appropriate device upon certification.

The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts no liability for any
errors it contains, and reserves the right to alter specifications without notice.

WARNING: These products are not designed for use in, and should not be used for, patient-connected applications.

!

This device is marked with the international caution symbol. It is important to read the Setup Guide before installing or
commissioning this device as the guide contains important information relating to safety and EMC.

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TABLE OF CONTENTS

Part 1: Introduction............................................................................................2

1.1 Description .................................................................................2

1.2 Safety Considerations ...............................................................3

1.3 Before You Begin .......................................................................4

Part 2: Setup.......................................................................................................5

2.1 Optional Remote Programmer Front Panel View....................5

2.2 Front Panel Connections...........................................................6

2.3 Electrical Installation .................................................................7

2.3.1 Power Connections........................................................7

2.3.2 Thermocouple - Input Connection................................8

2.3.3 Two / Three / Four Wire RTD-Hookup...........................9

2.3.4 Process Current - Wiring Hookup...............................10

2.3.5 Process Voltage - Wiring Hookup...............................10

2.3.6 Wiring Outputs - Wiring Hookup.................................11

Part 3: Operation: Configuration Mode .........................................................14

3.1 Introduction ..............................................................................14

Turning your Instrument On for the First Time
Buttons Functions in Configuration Mode

3.2 Menu Configuration ................................................................15

3.2.1 ID Number .....................................................................16

3.2.2 Set Points......................................................................17

3.2.3 Configuration Menu ....................................................18

3.2.4 Input Type Menu ...........................................................18

Input Type (Thermocouple) ........................................19

Input Type (RTD)...........................................................20

Input Type (Process) ...................................................21

3.2.5 Reading Configuration Menu .....................................22

3.2.6 Analog Output (Retransmission) ...............................26

3.2.7 Alarm 1 Menu (not available).......................................28

3.2.8 Alarm 2 Menu................................................................28

3.2.9 Reading Adjust Menu/Field Calibration......................32

3.2.10 ID Code Menu ...............................................................33

3.2.11 Communication Options Menu ...................................35

3.2.12 Display Color Selection Menu.....................................42

Part 4: Specifications ......................................................................................45

Part 5: Factory Preset Values.........................................................................48

Part 6: CE Approval Information ....................................................................49

i

LIST OF FIGURES:

Figure 2.1 Optional Remote Programmer Front Panel Display ...............5

Figure 2.2 Input and Output Connections .................................................6

Figure 2.3 Main Power Connections ..........................................................7

Figure 2.4 Thermocouple Wiring Hookup..................................................8

Figure 2.5 Two/Three/Four-wire RTD

a) RTD-1000 ohm and 500 ohm Wiring Hookup.....................9

b) RTD-100 ohm Wiring Hookup..............................................9

Figure 2.6 Process Current Wiring Hookup

(Internal and External Excitation) ...........................................10

Figure 2.7 Process Voltage Wiring Hookup

(with Sensor Excitation and without Sensor Excitation.......10

Figure 2.8 a) SSR Output – Wiring Hookup............................................11

b) Mechanical Relay Output – Wiring Hookup ....................11

Figure 2.9 Pulse Output – Wiring Hookup ...............................................11

Figure 2.10 Isolated Analog Output Wiring Hookup .................................11

Figure 2.11 Snubber Circuits Wiring Hookup............................................12

Figure 2.12 Typical Applications.................................................................12

Figure 2.13 Communication Outputs:

a) RS-232 Output – Wiring Hookup.......................................13

b) RS-485 Output – Wiring Hookup.......................................13

Figure 2.14 Excitation Output .....................................................................13

Figure 3.1 Flow Chart for ID and Set Points Menu..................................15

Figure 3.2 Flow Chart for Configuration Menu........................................18

Figure 3.3 Flow Chart for Input Type Menu .............................................18

Figure 3.4 Flow Chart for Reading Configuration Menu.........................22

Figure 3.5 Flow Chart for Analog Output Retransmission ....................26

Figure 3.6 Flow Chart for Alarm 2 Menu ..................................................28

Figure 3.7 Flow Chart for Reading Adjust Menu/Field Calibration........32

Figure 3.8 Flow Chart for ID Code Menu..................................................33

Figure 3.9 Flow Chart for Communication Option Menu........................35

Figure 3.10 Flow Chart for Display Color Selection Menu .......................42

LIST OF TABLES:

Table 2.1 Optional Remote Programmer Front Panel Annunciators .....5

Table 2.2 Connectors .................................................................................6

Table 2.3 Fuse Requirements....................................................................7

Table 2.4 TC Wire Color Chart...................................................................8

Table 3.1 Button Function in Configuration Mode ................................14

Table 3.2 Conversion Table .....................................................................25

Table 4.1 Input Properties........................................................................47

Table 5.1 Factory Preset Values..............................................................48

ii

NOTES, WARNINGS and CAUTIONS

Information that is especially important to note is identified by following labels:

• NOTE

• WARNING or CAUTION

• IMPORTANT

• TIP

NOTE: Provides you with information that is important to successfully

setup and use the Programmable Digital Meter.

CAUTION or WARNING: Tells you about the risk of electrical shock.

CAUTION, WARNING or IMPORTANT: Tells you of circumstances or

practices that can effect the instrument’s functionality and must refer
to accompanying documents.

TIP: Provides you helpful hints.

1

PART 1

INTRODUCTION

1.1 Description

This device can be purchased as a controller, with outputs or as a signal
conditioner.

• The iSeries offers unparalleled flexibility in process measurement. Each unit

allows the user to select the input type, from 10 thermocouple types (J, K, T,
E, R, S, B, C, N and J DIN), Pt RTDs (100, 500 or 1000 Ω, with either 385 or
392 curve), DC voltage, or DC current. The voltage/current inputs are fully
scalable to virtually all engineering units, with selectable decimal point,
perfect for use with pressure, flow or other process input.

• The standard features include isolated analog voltage and current output.

Options include programmable RS-232 or RS-485 serial communication or
excitation. Analog Output is fully scaleable and configured as retransmission
to follow your display. Universal power supply accepts 90 to 240 Vac. Low
voltage power option accepts 24 Vac or 20 to 36 Vdc.

• The optional Remote Programmer features a large, three color

programmable display with capability to change a color every time the Alarm
is triggered.

2

1.2 Safety Considerations

This device is marked with the International Caution Symbol. It is
important to read this manual before installing or commissioning this

device as it contains important information relating to Safety and EMC
(Electromagnetic Compatibility).

This instrument is a panel mount device protected in accordance with
EN 61010-1:2001, electrical safety requirements for electrical equipment
for measurement, control and laboratory. Installation of this instrument
should be done by qualified personnel. In order to ensure safe operation,
the following instructions should be followed.

This instrument has no power-on switch. An external switch or circuit-
breaker shall be included in the building installation as a disconnecting
device. It shall be marked to indicate this function, and it shall be in close
proximity to the equipment within easy reach of the operator. The switch or
circuit-breaker shall meet the relevant requirements of IEC 947–1 and
IEC 947-3 (International Electrotechnical Commission). The switch shall
not be incorporated in the main supply cord.

Furthermore, to provide protection against excessive energy being drawn
from the main supply in case of a fault in the equipment, an overcurrent
protection device shall be installed.

• Do not exceed voltage rating on the label located on the top of the
instrument housing.

• Always disconnect power before changing signal and power
connections.

• Do not use this instrument on a work bench without its case for safety
reasons.

• Do not operate this instrument in flammable or explosive atmospheres.

• Do not expose this instrument to rain or moisture.

• Unit mounting should allow for adequate ventilation to ensure
instrument does not exceed operating temperature rating.

• Use electrical wires with adequate size to handle mechanical strain
and power requirements. Install without exposing bare wire outside the
connector to minimize electrical shock hazards.

EMC Considerations

• Whenever EMC is an issue, always use shielded cables.

• Never run signal and power wires in the same conduit.

• Use signal wire connections with twisted-pair cables.

• Install Ferrite Bead(s) on signal wires close to the instrument if EMC
problems persist.

Failure to follow all instructions and warnings may result in injury!

3

1.3 Before You Begin

Inspecting Your Shipment:

Remove the packing slip and verify that you have received everything
listed. Inspect the container and equipment for signs of damage as soon
as you receive the shipment. Note any evidence of rough handling in
transit. Immediately report any damage to the shipping agent. The carrier
will not honor damage claims unless all shipping material is saved for
inspection. After examining and removing the contents, save the packing
material and carton in the event reshipment is necessary.

Customer Service:

If you need assistance, please call the nearest Customer Service
Department, listed in this manual.

Manuals, Software:

The latest Operation and Communication Manual as well as free
configuration software are available at the website listed on the cover

page of this manual or on the CD-ROM enclosed with your
shipment.

For first-time users: Refer to the QuickStart Manual for basic operation
and set-up instructions.

The following steps in this manual for configuring your device are
explained by using the optional Remote Programmer Display (iDRP).

If you have the Serial Communications Option (-C24) you can easily
configure the controller on your computer or on-line.

To Reset the Meter:

When the monitor is in the "MENU" Mode, push c once to direct monitor
one step backward of the top menu item.

Push c twice to reset monitor, prior to resuming "Run" Mode except
after "Set Points" and "Alarms", that will go to the "Run" Mode without
resetting the monitor.

4

PART 2

SETUP

2.1 Optional Remote Programmer Front Panel

Refer to the Quick Start Guide for assembly and disassembly
instructions.

Figure 2.1 Optional Remote Programmer Front Panel Display

Table 2.1

Optional Remote Programmer Front Panel Annunciators

1 Setpoint 1/ Alarm 1 indicator (inactive)
2 Setpoint 2/ Alarm 2 indicator

°C °C unit indicator

°F °F unit indicator

a

Changes display to Configuration Mode and
advances through menu items*

b

Used in Program Mode and Peak Recall*

c

Used in Program Mode and Valley Recall*

d

Accesses submenus in Configuration Mode
and stores selected values*

* See Part 3 Operation: Configuration Mode

5

2.2 Front Panel Connections

The front panel connections are shown in Figures 2.2 and 2.3.

Figure 2.2 Input and Output Connections

Table 2.2 Connectors

POWER AC/DC Power Connector: All models

INPUT

Input Connector:

All models TC, PR (Process), RTD

OUTPUT 1 Not available.
OUTPUT 2 Based on one of the following models:

Relay SPDT
Solid State Relay
Pulse

For -AL Alarm Option only

OUTPUT 3 Isolated Analog (Output Voltage and Current)

OPTION

Based on one of the following models:

RS-232C and RS-485
Excitation

Output 2 is for -AL Alarm Option only.

6

10

1 23456789

2.3 Electrical Installation

2.3.1 Power Connections

Caution: Do not connect power to your device until you have completed all

input and output connections. Failure to do so may result in injury!

Connect the main power connections as shown in the figure below.

Figure 2.3 Main Power Connections

Table 2.3 Fuse Requirement (see specifications)

FUSE Connector Output Type For 115Vac For 230Vac DC
FUSE 1 Power N/A 100 mA(T) 63 mA(T) 63 mA(T)
FUSE 2 Power N/A N/A N/A 400 mA(T)

For the low voltage power option, in order to maintain the same degree of
protection as the standard high voltage input power units (90 - 240 Vac),
always use a Safety Agency Approved DC or AC source with the same
Overvoltage Category and pollution degree as the standard AC unit
(90 - 240 Vac).

The Safety European Standard EN61010-1 for measurement, control,and
laboratory equipment requires that fuses must be specified based on
IEC127. This standard specifies for a Time-lag fuse, the letter code “T”.The
above recommended fuses are of the type IEC127-2-sheet III. Be aware
that there are significant differences between the requirements listed in the
UL 248-14/CSA 248.14 and the IEC 127 fuse standards. As a result, no
single fuse can carry all approval listings. A 1.0 Amp IEC fuse is
approximately equivalent to a 1.4 Amp UL/CSA fuse. It is advised to
consult the manufacturer’s data sheets for a cross-reference.

7

* See Specification Section

2.3.2 Thermocouple Input

The figure below shows the wiring hookup for any thermocouple type.
For example, for Type K hookup, connect the yellow wire to the "2" terminal and

the red wire to the "1(-)" terminal.

When configuring your controller, select Thermocouple and Thermocouple Type
in the Input Type menu (see Part 3).

Figure 2.4 Thermocouple Wiring Hookup

If the input wires of the meter get disconnected or broken, it will display
+OPN “Input (+) Open” message. For safety purpose you may want to
set up your alarm to be triggered when input is open. See Alarm 1 and 2
chapters for details.

8

TYPE Input Connector Jacket (external insulation)

Terminal 1 (-) Terminal 2 (+) Extension Grade

J Red White dark-Brown Black
K Red Yellow dark-Brown Yellow
T Red Blue dark-Brown Blue
E Red Purple dark-Brown Purple
N Red Orange dark-Brown Brown
R Red Black - Green
S Red Black - Green
B Red Gray - Black

Table 2.4 TC Wire Color Chart

9

2.3.3 Two/Three/Four-Wire RTD

The figures below show the input connections and input connector jumpers
(shown in bold lines) required to hookup a 2-, 3- or 4-wire RTD.

Figure 2.5 a) RTD-1000 ohm and b) RTD-100 ohm Wiring Hookup

500 ohm Wiring Hookup

The two-wire connection is simplest method, but does not compensate for
lead-wire temperature change and often requires calibration to cancel lead-wire
resistance offset.

The three-wire connection works best with RTD leads closely equal in
resistance. The device measures the RTD, plus upper and lower lead drop
voltage and the subtracts twice the measured drop in the lower supply current
lead producing excellent lead-resistance cancellation for balanced
measurements.

The four-wire RTD hookup is applicable to unbalanced lead resistance and
enables the device to measure and subtract the lead voltage, which produces
the best lead-resistance cancellation.

When configuring your controller, select RTD Type and RTD value in the Input
Type menu (see Part 3).

If the input wires of the meter get disconnected or broken, it will display
+OPN “Input (+) Open” message except in case of 500/1000 Ω 2-wire
RTD. In this case the display shows -OPN “Input (-) Open” message.
For safety purpose you may want to set up your alarm to be triggered
when input is open. See Alarm 1 and 2 chapters for details.

3-WIRE

2-WIRE

4-WIRE

2-WIRE

4-WIRE

3-WIRE

10

2.3.4 Process Current

The figure below shows the wiring hookup for Process Current 0 – 20 mA.

Figure 2.6 Process Current Wiring Hookup

(Internal and External Excitation)

When configuring your instrument, select Process Type in the Input Type Menu
(see Part 3).

2.3.5 Process Voltage

The figure below shows the wiring hookup for Process Voltage 0 – 100 mV,
0 – 1 V, 0 – 10 V.

Figure 2.7 Process Voltage Wiring Hookup

(with Sensor Excitation and without Sensor Excitation)

RL - Voltage limited resistor, which allows to convert 24 Vdc internal excitation

voltage to the appropriate process input value. For instance: if the potentiometer
value is equal to 10 kΩ, the minimum RL is 14 kΩ for 10 V process input.

When configuring your instrument, select Process Type in the Input Type Menu
(see Part 3).

100 mV

Return

1 V or 10 V

R

L

100 mV

1 V or 10 V

Return

0-20 mA

Internal

Excitation

0-20 mA
External

Excitation

11

2.3.6 Wiring Outputs

This meter, if ordered with the -AL Alarm Option has one factory installed output,
located at “Output 2”. The SPDT Mechanical Relay, SPST Solid State Relay and
Pulse Output Connection are shown below.

Figure 2.8

a) SSR Outputs Wiring b) Mechanical Relay Wiring

Hookup Hookup

Figure 2.9 Pulse Outputs Wiring Hookup

The standard factory installed Isolated Analog Output (retransmission) voltage and
current connections are shown below.

Figure 2.10 Isolated Analog Output Wiring Hookup.

C

NO

SSR

OUTPUT 1 OUTPUT 2

External

Load

0.5 A (T)

C

NC

NO

RELAY

OUTPUT 1 OUTPUT 2

External

Load

3 A (T)

RETURN

PULSE

PULSE

OUTPUT 1 OUTPUT 2

10

RETURN

CURRENT

VOLTAGE

123456789

This device has snubber circuits designed to protect the contacts of the
mechanical relays when it switches to inductive loads (i.e. solenoids, relays).
These snubbers are internally connected between the Common (C) and
Normally Open (NO) relay contacts of Output 2.

If you have an inductive load connected between Common (C) and
Normally Closed (NC) contacts of the mechanical relays and you want to
protect them from the rush current during the switching period, you have
to connect an external snubber circuit between Common (C) and
Normally Closed (NC) contacts as indicated in the figure below.

Figure 2.11 Snubber Circuits Wiring Hookup

Figure 2.12 Typical Applications

TEMPERATURE

CONTROLLER

CONTROL

SIDE

dc INPUT

SSR

ac INPUT

SSR

ac INPUT

SSR

LOAD

SIDE

HEATER

Vac

Vac

dc CONTROLLED SSR USED WITH TEMPERATURE CONTROLLER WITH dc VOLTAGE SSR DRIVER OUTPUT

FAST BLOW

FUSE

0 or 5 Vdc,

TYPICALLY

431

2

TEMPERATURE

CONTROLLER

CONTROL

SIDE

LOAD

SIDE

HEATER

Vac

Vac

ac CONTROLLED SSR USED WITH TEMPERATURE CONTROLLER WITH MECHANICAL RELAY OUTPUT

FAST BLOW

FUSE

Vac

DRIVING

SSR

431

2

TEMPERATURE

CONTROLLER

CONTROL SIDE

LOAD

RESISTOR

LOAD

SIDE

HEATER

Vac

Vac

ac CONTROLLED SSR USED WITH TEMPERATURE CONTROLLER WITH TRIAC OUTPUT

FAST BLOW

FUSE

Vac

DRIVING

SSR

431

2

12

C

NC

NO

100

1/4 W

0.033

RC CIRCUIT

OR

VARISTOR

275 V

OUTPUT 1 OUTPUT 2

13

This device may have a programmable serial communication output.
The RS-232 and RS-485 Output Connections are shown below.

Figure 2.13 Serial Communication

a) RS-232 Output Wiring Hookup b) RS-485 Output Wiring Hookup

This device has built-in excitation. The connections are shown below.

Figure 2.14 Excitation Output

Excitation is not available
if communication (-C24)
or low power (-DC) option
is installed.

Tx
Rx
RTN

-Tx / Rx
+Tx / Rx

­24 Vdc

+