Omega OM-DAQXL User manual
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User’s Guide
OM-DAQXL
Multi-Channel Universal Input
Touch Screen Data Logger
The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves
the right to alter specifications without notice.
Servicing North America:
U.S.A.: Omega Engineering, Inc.,
800 Connecticut Ave
Toll-Free: 1-800-826-6342 (USA & Canada only)
Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: (203) 359-1660 Fax: (203) 359-7700
e-mail: [email protected]
For Other Locations Visit omega.com/worldwide
omega.com [email protected]
i
OM-DAQXL
Multi Channel
Touch Screen Data Logger
TABLE OF
CONTENTS
Section Page
Section 1 - Introduction ....................................................................... 1-1
1.1 Precautions ............................................................................................................. 1-1
1.2 Safety Warnings and IEC Symbols ..................................................................... 1-1
1.3 Statement on CE Marking .................................................................................... 1-1
1.4 Overview ................................................................................................................ 1-2
1.4.1 Operating Environment ............................................................................... 1-2
Section 2 - Hardware .......................................................................... 2-1
2.1 Package Inspection ................................................................................................ 2-1
2.2 Included Items ........................................................................................................ 2-1
2.3 Part Names and Functions .................................................................................. 2-2
2.3.1 Front ................................................................................................................ 2-2
2.3.2 Back ................................................................................................................. 2-3
2.3.3 Left Side .......................................................................................................... 2-3
2.3.4 Right Side ....................................................................................................... 2-4
2.3.5 Top .................................................................................................................. 2-4
2.3.6 Bottom ............................................................................................................ 2-4
2.4 Removing and Installing Rubber Boot .............................................................. 2-5
2.5 Wall Mounting ...................................................................................................... 2-5
2.6 Sensor Connections................................................................................................ 2-6
2.6.1 Two Wire Sensors ......................................................................................... 2-6
2.6.1.1 Thermocouples ....................................................................................... 2-6
2.6.1.2 Voltage Wiring ...................................................................................... 2-6
2.6.1.3 Current Wiring ...................................................................................... 2-7
2.6.2 Three and Four Wire Sensors ............................................................................ 2-7
2.6.2.1 Two Wire RTD Wiring .......................................................................... 2-7
2.6.2.2 Three Wire RTD Wiring ........................................................................ 2-8
2.6.2.3 Four Wire RTD Wiring .......................................................................... 2-8
2.6.2.4 Thermistor Wiring ................................................................................. 2-9
2.6.2.5 Bridge Sensor Wiring ............................................................................ 2-9
2.7 Digital I/O Connections ..................................................................................... 2-10
2.8 Alarm, Excitation and Trigger ........................................................................... 2-11
2.9 USB Host Ports ..................................................................................................... 2-11
2.10 LED Indication ................................................................................................... 2-12
2.11 Battery Pack and Power Adapter .................................................................... 2-13
2.11.1 Connecting the Battery Pack ................................................................... 2-13
2.11.2 Connecting the AC Adaptor ................................................................... 2-14
2.11.3 Powering on the Data Logger ................................................................. 2-14
Section 3 - Standalone Operation ....................................................... 3-1
3.1 Login Window ....................................................................................................... 3-1
3.2 Home Screen .......................................................................................................... 3-2
3.2.1 Status/Information Display ....................................................................... 3-2
3.2.2 Data Display Area ........................................................................................ 3-3
3.2.3 Home Toolbar ............................................................................................... 3-3
3.2.4 User Interface Flowchart ............................................................................. 3-4
ii
OM-DAQXL
Multi Channel
Touch Screen Data Logger
TABLE OF
CONTENTS
3.3 Setting Screens ....................................................................................................... 3-5
3.3.1 Add Channels ............................................................................................... 3-5
Input Type–Physical Input Channel ............................................................... 3-5
Temperature Inputs ........................................................................................... 3-5
Strain Gage Inputs ............................................................................................. 3-7
Voltage Inputs .................................................................................................... 3-9
Current Inputs .................................................................................................. 3-11
Digital Inputs .................................................................................................... 3-13
Totalizer ............................................................................................................. 3-16
Resettable Counter ........................................................................................... 3-18
Input Setup - Virtual Math Channel ............................................................. 3-19
3.3.2 Channel List ................................................................................................ 3-21
3.3.3 Trigger Settings .......................................................................................... 3-22
Timer Trigger Events ....................................................................................... 3-23
Date and Time Trigger Events ....................................................................... 3-23
Weekday and Time Trigger Events ............................................................... 3-24
Alarm Output Trigger Events ........................................................................ 3-24
External Trigger Events .................................................................................. 3-25
3.3.5 Data Session Settings ................................................................................. 3-26
3.3.6 Alarm Settings ............................................................................................ 3-27
Main Alarm Screen .......................................................................................... 3-27
Alarm Status ..................................................................................................... 3-27
Alarm Table ...................................................................................................... 3-27
Alarm Toolbar .................................................................................................. 3-28
Add/Edit Alarm Screen .................................................................................. 3-29
3.3.7 Device Settings ........................................................................................... 3-30
General/Data and Time .................................................................................. 3-30
Display Options ............................................................................................... 3-31
Communication Settings ................................................................................. 3-32
Diagnostics ........................................................................................................ 3-34
User Management ............................................................................................ 3-35
Change Password ............................................................................................ 3-37
About Your Logger/Firmware ...................................................................... 3-38
3.4 Viewing Data ....................................................................................................... 3-40
3.4.1 Select Channels ........................................................................................... 3-41
3.4.2 Waveform View ......................................................................................... 3-42
3.4.3 Waveform and Table View ....................................................................... 3-43
3.4.4 Table Only View ........................................................................................ 3-44
3.4.5 Digital View ................................................................................................ 3-45
3.4.6 Screenshot ................................................................................................... 3-46
3.4.7 Annotate ....................................................................................................... 3-46
3.5 Operating Modes ................................................................................................ 3-47
3.5.1 Free-Running ............................................................................................... 3-47
3.5.2 Armed Mode ............................................................................................... 3-47
3.5.3 Logging Mode ............................................................................................. 3-47
3.5.4 Data Review Mode ..................................................................................... 3-47
iii
OM-DAQXL
Multi Channel
Touch Screen Data Logger
TABLE OF
CONTENTS
Section 4 - CE Conformity ..................................................................... 4-1
Section 5 - Troubleshooting ................................................................. 5-1
5.1 Hardware Issues ................................................................................................... 5-1
5.2 Display Issues ........................................................................................................ 5-1
5.3 Logging Issues ....................................................................................................... 5-1
5.4 Setup Issues ........................................................................................................... 5-1
5.5 Error Messages ...................................................................................................... 5-1
Section 6 - Service and Calibration ...................................................... 6-1
Section 7 - Specifications ..................................................................... 7-1
7.1 General ................................................................................................................... 7-1
7.2 Inputs ...................................................................................................................... 7-1
7.3 Functions ................................................................................................................ 7-3
7.4 Communication ...................................................................................................... 7-4
7.5 External I/O ............................................................................................................ 7-4
7.6 Dimensions ............................................................................................................. 7-5
Section 8 - International Approvals ..................................................... 8-1
List of Figures
Figure Description ......................................................................................... Page
Figure 2-1 Included Items ......................................................................................... 2-2
Figure 2-2 OM-DAQXL Front View ........................................................................ 2-2
Figure 2-3 OM-DAQXL Back View ......................................................................... 2-3
Figure 2-4 OM-DAQXL Left Side View .................................................................. 2-3
Figure 2-5 OM-DAQXL Right Side View ................................................................ 2-4
Figure 2-6 OM-DAQXL Top View ........................................................................... 2-4
Figure 2-7 OM-DAQXL Bottom View ..................................................................... 2-4
OM-DAQXL
Multi Channel
Touch Screen Data Logger
LIST OF
FIGURES
OM-DAQXL
Multi Channel
Touch Screen Data Logger
LIST OF
TABLES
List of Tables
Table Description ......................................................................................... Page
Table 2-1 OM-DAQXL Models ............................................................................... 2-1
Table 2-2 OM-DAQXL Included Items ................................................................. 2-1
Table 2-3 Two Wire Sensor Connections .............................................................. 2-6
Table 2-4 Three and Four Wire Sensor Connections ........................................... 2-7
Table 2-5 Digital I/O Cable Pinout ...................................................................... 2-10
Table 2-6 Alarm Terminal Block Signals ............................................................. 2-11
Table 2-7 Status LED States ................................................................................... 2-12
Table 3-1 Alarm Type/Status Indicator Color. .................................................. 3-27
iv
OM-DAQXL
Multi Channel
Touch Screen Data Logger
LIST OF
FIGURES
Figure 2-8 Removing and Installing Rubber Boot ................................................. 2-5
Figure 2-9 OM-DAQXL Wall Mounting ................................................................. 2-5
Figure 2-10 Thermocouple Wiring Example ............................................................ 2-6
Figure 2-11 Voltage Wiring Example ........................................................................ 2-6
Figure 2-12 DC Current Wiring Example - External Excitation ............................ 2-7
Figure 2-13 2-Wire RTD Wiring Example ................................................................. 2-7
Figure 2-14 3-Wire RTD Wiring Example ................................................................. 2-8
Figure 2-15 4-Wire RTD Wiring Example ................................................................. 2-8
Figure 2-16 Thermistor Wiring Example .................................................................. 2-9
Figure 2-17 Bridge Sensor Wiring Example ............................................................. 2-9
Figure 2-18 Digital I/O Connector Pin Numbers. ................................................. 2-10
Figure 2-19 Connecting the Digital I/O Cable. ...................................................... 2-10
Figure 2-20 Alarm Terminal Block. .......................................................................... 2-11
Figure 2-23 Inserting USB Memory ......................................................................... 2-11
Figure 2-24 Status LED Locations ............................................................................ 2-12
Figure 2-25 Removing Battery Door. ....................................................................... 2-13
Figure 2-26 Connecting Battery ................................................................................ 2-13
Figure 3-1 Login Window ......................................................................................... 3-1
Figure 3-2 Home Screen ............................................................................................ 3-2
Figure 3-3 Status Display .......................................................................................... 3-2
Figure 3-4 Home Toolbar .......................................................................................... 3-3
Figure 3-5 Menu Flowchart ....................................................................................... 3-4
Figure 3-6 Settings Fly-Out Menu ............................................................................ 3-5
Figure 3-7 Input Type - Temperature ...................................................................... 3-5
Figure 3-8 Data Ranges - Temperature ................................................................... 3-6
Figure 3-9 Input Type - Strain Gage ........................................................................ 3-7
Figure 3-10 Data Ranges - Strain Gage ...................................................................... 3-8
Figure 3-11 Input Type - Voltage ............................................................................... 3-9
Figure 3-12 Data Ranges - Voltage ........................................................................... 3-10
Figure 3-13 Input Type - Current ............................................................................. 3-11
Figure 3-14 Data Ranges - Current .......................................................................... 3-12
Figure 3-15 Input Type - Digital Frequency ........................................................... 3-13
Figure 3-16 Data Ranges - Digital Frequency ......................................................... 3-14
Figure 3-17 Data Range - Volumetric Flow ............................................................ 3-15
Figure 3-18 Input Type Digital Totalizer ................................................................ 3-16
Figure 3-19 Data Ranges - Digital Totalizer ........................................................... 3-17
Figure 3-20 Input Type Digital Resettable Counter .............................................. 3-18
Figure 3-21 Data Ranges - Resettable Counter ....................................................... 3-18
Figure 3-22 Input Type - Virtual Math .................................................................... 3-19
List of Figures (Continued)
Figure Description ......................................................................................... Page
v
OM-DAQXL
Multi Channel
Touch Screen Data Logger
LIST OF
FIGURES
List of Figures (Continued)
Figure Description ......................................................................................... Page
Figure 3-23 Data Ranges - Virtual Math ................................................................. 3-20
Figure 3-24 Channel List screen ............................................................................... 3-21
Figure 3-25 Trigger Settings ...................................................................................... 3-22
Figure 3-26 Timer Trigger Event .............................................................................. 3-23
Figure 3-27 Date and Time Trigger Event .............................................................. 3-23
Figure 3-28 Weekday and Time Trigger Event ...................................................... 3-24
Figure 3-29 Alarm Trigger Event ............................................................................. 3-24
Figure 3-30 External Trigger Event .......................................................................... 3-25
Figure 3-31 Data Session Screen ............................................................................... 3-26
Figure 3-32 Main Alarm Screen ................................................................................ 3-27
Figure 3-33 Alarm Toolbar ........................................................................................ 3-28
Figure 3-34 Add/Edit Alarm Screen ....................................................................... 3-29
Figure 3-35 Device Settings ....................................................................................... 3-30
Figure 3-36 General Settings Screen ........................................................................ 3-30
Figure 3-37 Display Options Screen ........................................................................ 3-31
Figure 3-38 Communication Setting - Ethernet ..................................................... 3-32
Figure 3-39 Communication Setting - Wi-Fi ........................................................... 3-33
Figure 3-40 Device Settings Diagnostics Screen .................................................... 3-34
Figure 3-41 User Management Screen ..................................................................... 3-35
Figure 3-42 Add User ................................................................................................. 3-36
Figure 3-43 Change Password Screen ..................................................................... 3-37
Figure 3-44 About Screen .......................................................................................... 3-38
Figure 3-45 Firmware Upgrade Screen ................................................................... 3-39
Figure 3-46 Firmware Upgrade Success.................................................................. 3-39
Figure 3-47 Display Channel Fly-Out Menu .......................................................... 3-40
Figure 3-48 Views Fly-Out Menu ............................................................................. 3-40
Figure 3-49 Select Channels Screen.......................................................................... 3-41
Figure 3-50 Waveform View ..................................................................................... 3-42
Figure 3-51 Graph Scale Selector .............................................................................. 3-42
Figure 3-52 Waveform and Table View .................................................................. 3-43
Figure 3-53 Table Only View .................................................................................... 3-44
Figure 3-54 Four Channel Digital View .................................................................. 3-45
Figure 3-55 Single Channel Digital View ................................................................ 3-45
Figure 3-56 Annotate ................................................................................................. 3-46
Figure 3-57 Stored File Directories........................................................................... 3-48
Figure 3-58 Stored Files List ...................................................................................... 3-49
Figure 3-59 Data Review Screen ............................................................................... 3-50
Figure 3-60 Review Mode Channel List .................................................................. 3-51
1-1
Introduction
1
Section 1 - Introduction
Thank you for purchasing the OMEGA
®
OM-DAQXL portable data logger. This
User’s Guide describes the functions of the OM-DAQXL as well as its operating
methods and handling precautions. Read this manual thoroughly before using
the OM-DAQXL to ensure correct use.
In addition to this manual a Quick Start Guide is available separately for
download at omega.com/manuals. The Quick Start Guide briefly describes the
main functions and the basic procedures for performing such tasks as setup
and measurement operations. Use the Quick Setup Manual together with this
in-depth User’s Guide.
After reading this manual, keep it in an easily accessible place for later reference.
This manual will come in handy when you are unsure of how to operate the
product.
Please read this manual completely before installing and operating your
OMEGA data logger system. It’s important to read and follow all notes, cautions,
warnings and safety precautions before operating this device. “Device” refers to
your data logger device.
1.1 Precautions
• This device is not designed for use in any medical or nuclear applications.
• Do not operate this device in flammable or explosive environments.
• Never operate with a power source other than the one recommended in this
manual or listed on product labels.
• This device has been designed for dry, moisture free applications only.
• Do not operate this device outside of the recommended use outlined in this
manual.
1.2 Safety Warnings and IEC Symbols
This device is marked with international safety and hazard symbols in
accordance with IEC standards. It is important to read and follow all precautions
and instructions in this manual before operating or commissioning this device as
it contains important information relating to safety and EMC. Failure to follow
all safety precautions may result in injury and or damage to your device. Use of
this device in a manner not specified will void your warranty.
1.3 Statement on CE Marking
It is the policy of OMEGA
®
to comply with all worldwide safety and EMI/
EMC 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. For additional information
see Section 8 - International Approvals.
1-2
Introduction
1
1.4 Overview
The OM-DAQXL is an 8 or 16 analog input portable data logger with a color
7” resistive touch screen display. It has user programmable inputs that can be
configured for several different types of sensors including temperature sensors
(thermocouple, RTD, thermistor), strain gage, process inputs (voltage and
current) and digital pulse inputs. All configurable options (including individual
channel input type and range) are software programmable. The device is
powered by a 7.2V, 4.8 Ah Li-ion battery. In addition an external 12V, 5A AC
adapter can be used to power the device for extended periods.
The compact, portable packaging ensures ease of use in a variety of applications.
Devices can be wall mounted using the provided keyhole mount or easily
operated on a bench.
The device has four operating modes:
1. Free Running – In this mode the device measures and displays configured
analog / digital inputs. No Logging is performed. No Trigger conditions are
set.
2. Armed Mode – In this mode the device measures and displays configured
analog / digital inputs. A Start Trigger condition is set. No Logging is
performed until the Start trigger condition is met.
3. Logging Mode – In this mode the device measures and displays configured
analog / digital inputs. The device is also logging data from the input channels
to the designated memory location, either the SD card or the USB drive or the
internal memory.
4. Data Review Mode – In this mode users can review previously recorded data
in a graphical view. Zoom in and out. Scroll through the data back and forth in
time. Review recorded data from any 4 channels on one screen.
1.4.1 Operating Environment
The OM-DAQXL has been designed to meet its stated specifications when
operating within the ambient conditions outlined below.
Temperature: 0 to 50 deg C (32 to 122 deg F)
Humidity: 0 to 95% RH non-condensing
In addition to restricting operation of the data logger to the given temperature
and humidity ranges, a warmup period of 30 minutes is recommended to ensure
best accuracy of measurements.
2-1
2 Hardware
2.1 Package Inspection
Remove the packing list and verify that you have received all your equipment.
If you have any questions about the shipment, please call our Customer Service
Department at the number listed on the first page of this manual or reaching us
on the Internet at omega.com, e-mail: [email protected]. When you receive
the shipment, inspect the container and equipment for any signs of damage.
Note: Report any evidence of rough handling in transit. Immediately report any
damage to the shipping agent. The carrier will not honor any damage claims
unless all the shipping materials are saved for inspection. After examination
and removal of contents, save packing material and carton in the event that
reshipment is necessary.
2.2 Included Items
The following items are supplied in the box:
Data Logging Instrument
Verify the model number shown on the rear label of your data logger matches
what was ordered.
Hardware
2
Model Specifications
OM-DAQXL-1-*
8 channel data logger with USB Host/Device
OM-DAQXL-2-*
16 channel data logger with USB Host/Device
No. Model No. Description
1
OM-DAQXL-RB
Rubber boot for impact resistance
2
SD32GB
32GB SD card
3
OM-DAQXL-USB
6' USB cable
4
OM-DAQXL-CABLE6
Digital I/O cable ,6 ft.
5
OM-DAQXL-TB8
Alarm/excitation terminal block
6
OM-DAQXL-ADAPTOR-*
12Vdc, 5A power adaptor
7
SCREWDRIVER-2.5mm
Omega screwdriver
8
MQS-5570
OM-DAQXL Series quick start guide
9
5TC-TT-K-20-36
Type K thermocouples
5 pack with stripped leads
10
NA
Crimp on ground lug
11
PT-USB-1
1GB Flash drive
12
OM-DAQXL-RF
Snap-on round cable ferrite
Included Items (see figure 2-1)
Table 2-1 OM-DAQXL Models
Table 2-2 OM-DAQXL Included items.
* Specifies the country code.
2-2
LCD DISPLAY
STATUS LEDS
HOME BUTTON
TM
Figure 2-1 Included Items.
Hardware
2
2.3 Part Names and Functions
The figures in this section show the different parts of the data logger and provide
a brief description of their functions.
2.3.1 Front
The front of the data logger is comprised of 3 user interface elements. These are
the 7” touch screen LCD, three status LEDs and the home button. The touch
screen display is used to display all measured data, settings & configuration
menus and status information. The three status LEDs provide visible indications
of power & battery charging status, data logging status, and alarm status.
Depending on the current status the color of the LEDs will vary. For LED color
indications, see Section 2.10. The Home button is the single hardware button for
the user interface. It provides a quick and easy way to return to the Home screen
from any other screen with one button press.
Figure 2-2 OM-DAQXL Front View.
2
5
8
9
6
7
10
1
4
3
11
12
13
2-3
2.3.2 Back
The back side of the data logger has a kickstand which allows the device to sit at
a 30 degree angle when sitting on a hard surface and snaps into place when not
in use. The kickstand has 2 keyhole slots allowing it to act as a wall mounting
bracket. See Section 2.5 for information on how to wall mount the device. The
battery compartment door is also located on the back of the device. See Section
2.11 for information on how to replace the battery.
Hardware
2
2.3.3 Left Side
The left side of the data logger features connections for alarm outputs, digital
I/O and DC power.
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Figure 2-3 OM-DAQXL Back View.
Figure 2-4 OM-DAQXL Left Side View
2-4
2.3.4 Right Side
The right side of the data logger features the USB host and device connectors
as well as the shield ground terminal. The shield ground terminal may be
connected to earth ground to minimize sensor noise pickup. In addition the
stylus is stored in a slot on this side of the device.
6'&$5'6/27
Hardware
2
Figure 2-7 OM-DAQXL Bottom View
Figure 2-5 OM-DAQXL Right Side View
2.3.5 Top
The top of the data logger provides analog input terminal blocks for either 8
or 16 channels depending on the model. The terminal blocks are designed to
accommodate wire between sizes 26 -14 AWG. See Section 2.6 for information on
how to connect sensors.
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Figure 2-6 OM-DAQXL Top View
2.3.6 Bottom
2-5
2.4 Removing & Installing Rubber Boot
The data logger ships with an impact resistant rubber boot pre-installed.
OMEGA recommends leaving the protective rubber boot installed, but it can be
removed for convenience. When removing the rubber boot be sure to do so with
a support surface not more than 1 foot beneath the device to protect in the case of
an accidental drop.
To remove the device from the rubber boot first power off the device and
disconnect all external connections including power, analog & digital inputs,
and communication interfaces. Next while holding the device with one hand
gripping the top of the device, use the other hand to pry one of the bottom
corners of the rubber boot outward and downward until the corner of the device
pops free from the boot. Repeat for the other bottom corner of the device. With
both of the bottom corners free of the boot, continue to tilt the bottom of device
upward and pull it outward until it is free from the boot. Installation is the
reverse of removal.
2.5 Wall Mounting
The data logger features a built in kick stand with keyhole screw slots that fit #6
(M3.5 metric) sized screws for wall mounting.
Hardware
2
Figure 2-9 OM-DAXL Wall Mounting.
Figure 2-8 Removing Rubber Boot
2-6
2.6 Sensor Connections
This section shows how to connect sensors to your analog input terminals.
There are 8 or 16 analog input channels (depending on the model) each having
one positive terminal and one negative terminal clearly shown on the input
label. Depending on the type of sensor being connected 2 input channels may
be required. Input tables and figures are shown for each type of input. Bridged
based sensors (strain gages, load cells and mV output pressure transducers)
require excitation voltage which is provided on channels 1 and 2, 3 and 4,
9 and 10, 11 and 12 only. See tables 2-3 and 2-4 for wiring information.
2.6.1 Two wire sensors
For two wire sensors any open channel can be configured to read the sensor.
2.6.1.1 Thermocouples
For thermocouple sensors the negative lead is always colored red
(USA and Canada) or white (IEC 584-3).
2.6.1.2 Voltage Wiring
Hardware
2
Sensor Type
Any Channel
+ –
Temperature Thermocouple TC+ TC-
Process
Voltage V+ V-
Current I+ I-
Table 2-3 Two wire sensor connections.
Figure 2-10 Thermocouple Wiring Example
Figure 2-11 DC Voltage Wiring Example
2-7
2.6.1.3 Current Wiring
For current measurement a 50Ω shunt resistor is provided.
2.6.2 Two, Three & Four Wire Sensors
2.6.2.1 Two-Wire RTD Wiring
For RTD sensors the positive colored red and the common lead can be either
black or white. A jumper wire must be connected between the negative leads of
the two assigned channels as shown in figure 2-13.
Hardware
2
Figure 2-12 DC Current Wiring Example - External Excitation
Sensor Type
Odd Channel Even Channel
+ - + -
Temperature
2 Wire RTD RTD+ RTD– RTD-
3 Wire RTD RTD+ RTD– RTD-
4 Wire RTD RTD+ RTD– RTD+ RTD-
Thermistor Th+ Th- Th-
Bridge
Strain Gage EXC+ EXC- V+ V-
Load Cell EXC+ EXC- V+ V-
Pressure Transducer EXC+ EXC- V+ V-
Table 2-4 Three and Four Wire Sensor Connections
Figure 2-13 Two-Wire RTD Wiring Example
2-8
Hardware
2
2.6.2.2 Three-Wire RTD Wiring
For 3-wire RTD sensors the second common lead must be connected to the
negative terminal of the next consecutive even channel.
2.6.2.3 Four-Wire RTD Wiring
For 4-wire RTD sensors the data logger performs a Kelvin resistance
measurement using 1 channel to supply excitation voltage and the next channel
to sense the voltage across the RTD.
Figure 2-14 Three-Wire RTD Wiring Example
Figure 2-15 Four-Wire RTD Wiring Example
2-9
2.6.2.4 Thermistor Wiring
For thermistor sensors connection, 2 channels are required as shown in Figure 2-16.
2.6.2.5 Bridge Sensor Wiring
For bridge based sensors excitation voltage is supplied on channels 1, 3, 9 and
11. The next consecutive even channels must be used to measure the sensor
output.
Hardware
2
Figure 2-16 Thermistor Wiring Example
Figure 2-17 Bridge Sensor Wiring Example
2-10
2.7 Digital I/O Connections
The included 6’ digital I/O cable with stripped leads and mini-DIN connector
makes connecting digital I/O to the data logger quick and simple. Table 2-5
shows the cable pinout and figure 2-18 shows the corresponding pins on the data
logger connector.
Hardware
2
Signal Name Pin # Wire Color
Digital Input 1 1 White
Digital Input 2 2 Red
Digital Input 3 3 Orange
Digital Input 4 4 Purple
Digital Output 1 5 Brown
Digital Output 2 6 Black
Digital Output 3 7 Blue
Digital Output 4 8 Green
Isolated Ground 9 Yellow
Table 2-5 Digital I/O cable pinout.
Figure 2-18 Digital I/O Connector Pin Numbers.
Figure 2-19 Connecting the Digital I/O Cable.
2-11
2.8 Alarm, Excitation & Trigger
The eight position terminal block on the left side of the device has terminal
positions for four alarm outputs, an isolated 24 VDC excitation supply and
an external trigger input. Connections are made easy through the included
pluggable terminal block. Follow the terminal indications on the label and
connect to the appropriate position
2.9 USB Host ports
The USB host port allows external USB memory to be used for data storage. USB
Memory up to 64GB in size can be used with the data logger. The USB host can
also be used to connect a USB mouse.
2.10 LED Indication
The three status LEDs on the front of the data logger provide an easy to see
visual indication of the status of the device. This is useful when the LCD has
been turned off or is difficult to read due to glare or distance. See figure 2-24 and
table 2-7 for information on the different LED indications.
2.11 Battery Pack and Power Adapter
The data logger is a portable device and can operate on battery power for several
hours before requiring recharging. The included battery is a 7.2V, 4.8 Ah Li-Ion
battery. Also included is an AC adapter to provide 12VDC power for longer
term data logging and battery recharging.
2.11.1 Connecting the battery pack
The data logger ships with the battery installed, but disconnected to keep it from
completely draining during shipment. To connect the battery pack:
Hardware
2
Figure 2-21 USB Cable Connection to Data Logger.
Figure 2-23 Inserting USB Memory.
Signal Name Terminal #
Alarm 1 1
Alarm 2 2
Alarm 3 3
Alarm 4 4
Ground 5
External Trigger 6
Isolated Ground 7
+24 Vdc 8
Table 2-6 Alarm Terminal Block Signals
Figure 2-20 Alarm Terminal Block
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Omega OM-DAQXL User manual
- Category
- Measuring, testing & control
- Type
- User manual
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