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Product Groups
Ethernet-Based Temperature- Voltage and Strain Measurement Modules
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
OMB-NET6000 Series
  • 12 Analog Inputs
  • 8 Digital I/O
  • Simultaneous Sampling
  • Multiple Trigger Modes
  • Compact Modular Design
  • Expandable Using Multiple OMB-NET6000 Series Modules
 Manuals (contact with email : [email protected])


The OMB-NET6000 Series with Encore software combinesaccurate, Ethernet-based DAQ modules with powerful, easy-to-usesoftware. OMB-NET6000 Series devices feature integrated signalconditioning and a modular design with built-in channel expansioncapability expandable (by adding additional
OMB-NET6000 Series Modules). Because the OMB-NET6000 Seriesuses an Ethernet connection, devices can be connecteddirectly to a PC or used in remote configurations utilizing multipledevices. Devices are offered for voltage, thermocouple, or directstrain inputs.

Each device includes 12 analog input channels. The OMB-NET6220 offers12 voltage inputs, BNC connectors, 16-bit resolution, and a 100 kHz perchannel sample rate. The OMB-NET6222 is a 12-channel,24-bit thermocouple input device. The OMB-NET6224 offers directstrain gage inputs, 24-bit resolution, and a 50 kHz per channel sample rate.The OMB-NET6230 and OMB-NET6231 are high-speed,isolated voltage input devices. Each device also includes 8 digitalI/O channels. Included with each OMB-NET6000 Series device is newEncore interactive measurement software. Encore combines anintuitive user interface with robust functionality. It allows users to quicklyconfigure hardware, develop and customize data displays, analyzedata with built-in analysis tools, and provides the ability to developcomprehensive test reports. Utilizing the connectivity of anEthernet based system, multiple OMB-NET6000 series devices canbe combined to build expandable, mixed signal systems. Thesesystems can be used in a central location, or in distributed or remoteconfigurations.


The OMB-NET6220 is equipped with 12 analog input channels witha ±10V range. Each analog input provides 16-bit resolution with amaximum 100 kHz per channel sample rate. All channels aresampled simultaneously.

The OMB-NET6222 is equipped with 12 thermocouple input channels.Inputs are also equipped with a ±80 mV range. Each analog inputprovides 24-bit resolution with a 2 S/s sample rate per channel. Allinputs are sampled simultaneously.


The OMB-NET6224 is equipped with 12 analog input channels capableof measuring full-, half-, or quarterbridge sensors. Each of the 12analog channels has its own 24-bit ADC and input amplifier allowingall 12 channels to be sampled simultaneously.The OMB-NET6224 also includes anti-aliasing filters. All strain inputsignals are attached via 12 RJ50 connectors mounted on the front ofthe module. The OMB-NET6224 features direct strain gage inputs. Half orfull-bridge sensors are supported. Quarter-bridge sensors are alsosupported using an external resistor. The OMB-NET6224 is also 100%software programmable. Excitation, auto-zero, and shunt calibration areeach adjusted in software without relying on manually adjusted trimpotswhich can cause increased error and drift. Excitation is provided bythe OMB-NET6224 and can be software selected for 2.5V, 3.3V, 5V,or 10V. For excitation values beyond those listed, an external excitationsource may be used. Connectors are provided on the front of the unit forexcitation source wiring.

Shunt calibration enables each channel to be put into a knownimbalance condition to set or verify channel calibration. Shuntcal allowsa full scale gain to be set without physically loading the bridge

Remote sensing automatically and continuously corrects for voltagedrop errors in excitation leads.

The 12 strain gage inputs on the OMB-NET6224 are accessed via12 RJ50 front panel connectors.
12 user specified connector modulesare included with the OMB-NET6224.


The OMB-NET6224 supports full- and half-bridge configurationsdirectly. Users can connect to the RJ50 front panel connectors or usethe OMB-NET-CN-268 12-pin screw terminal break-out connector module.


For quarter-bridge configurations the OMB-NET-CN-269 andOMB-NET-CN-270 feature 120 Ω and 350 Ω internal bridgecompletion resistors respectively. The OMB-NET-CN-269 andOMB-NET-CN-270 feature an RJ50 female connector one end and screwterminals on the other. One module is required for each channel.

OMB-NET6230 and OMB-NET6231
The OMB-NET6230 is equipped with 12 analog input channels witha ±10 V range. The OMB-NET6231 includes a ±60 V range. Eachanalog input features a 24-bit ADC with a maximum 50 kHz samplerate per channel. All channels are sampled simultaneously. TheOMB-NET6230 and OMB-NET6231 also include 250 Vrms channel-to-channel isolation for increased signal integrity and protection.

OMB-NET6000 Series modules include eight digital I/O lines. Alleight lines are accessible via a 9-pin female DSUB connector locatedon the rear panel of the unit. Each digital I/O bit can be programmedindividually to be either an input or an output.

There are four 32-bit counters built into each OMB-NET6000 Seriesmodule. They are accessed through the 9-pin female DSUB connectorlocated on the rear of the unit. Each counter has a maximum 20 MHzinput frequency and can be used in counter or encoder (A, B, and Z)modes.

A variety of trigger modes are supported by the OMB-NET6000Series. A wide selection of programmable analog and digitaltrigger modes are available for starting an acquisition. All triggermodes, along with the number of scans and the sample rate for preandpost-trigger data, are software programmable prior to the start of ascan sequence.

The OMB-NET6000 Series modulesoffer the flexibility to be poweredeither directly from a 19 V to 30 VDCsource, or via the includedOMB-NET-TR-60U AC power adaptor.

The OMB-NET6000 Series transfers acquired data to the PCvia 10/100BaseT Ethernet, allowing a continuous stream of datato be collected and stored in a PC’s memory or hard drive.The most common and highest performance connection is withdedicated, point-to-point Ethernet link between the PC and theOMB-NET6000 Series module. With an enterprise-wide Ethernet networkconnection, any number of OMB-NET6000 Series modules canbe connected to the network.

Multiple OMB-NET6000 Series modules can be synchronized via therear-panel SYNC ports on each unit. After connecting each module to anEthernet port, simply connect multiple OMB-NET6000 Series modulestogether using SYNC cables (OMB-CA-74-1). Encore softwareprovides the capability of setting one of the OMB-NET6000 Seriesmodules as the master and the others as slaves. The sampled data phaserelationship among channels between multiple devices is dependent on the“Channel SYNC Skew” specification for each device.

Encore is a premier data acquisition software package and is includedwith each OMB-NET6000 Series module. Encore combines ease ofuse with advanced functionality, including customizable data layouts,powerful analysis, and reporting capabilities. Instead of having aprogram to log data, another to analyze, and a third to developreport data, Encore includes the functionality of all three into onepackage, thus shortening the learning curve, and saving time and cost.

Easy-to-use set-up wizards provide rapid hardware configuration.Encore allows you to go from setup to taking measurements in minutes.Users can select one or more available devices from Encore’sHardware Configuration dialog. Encore allows you to configurethe basic acquisition or generation options, such as channel selection,acquisition rate, number of points, and input range. You can alsoconfigure start and stop triggers. In addition, within the Channel Viewtable, users can enable (or disable) channels, select measurementtype, enable logging, perform mx+b calculation, and more. ChannelView configurations can also be shared among multiple projects.

Encore allows you to develop data displays quickly with an intuitive,drag-and-drop interface. Encore also offers the ability to easilychange plot colors, overlay channels (including previously recorded data),and access multiple devices. You can also display data in a varietyof ways including; charts and graphs, meters, gauges, and tanks.Additionally, you can export data to other formats including Excel, ASCIIand DIAdem.

A variety of programmable analog and digital trigger conditions areavailable for starting and stopping an acquisition within Encore. Analogtriggers include Rising Edge, Falling Edge (with hysteresis), Above Level,Below Level, Inside Window, and Outside Window. Digital triggersinclude Rising Edge, Falling Edge, Level High, or Level Low. Inaddition, the Duration trigger may used to stop an acquisition after aspecified time.

Included analysis options make Encore an advanced softwarepackage. Features include FFT, power spectrum, statistics, peakvalue, and RMS calculation. In addition, you can also create customformulas using Encore’s Create Calculated Signal function. Data canalso be viewed in the playback work area. Analysis can be computed onlive data as well as logged data (post processing).

Statistics: Standard Deviation, Mean, and Variance
Peak: +Peak, -Peak, and Peak-Peak
Power Spectrum

Signals can be exported from Encore to Microsoft Excel. When exportingsignals from Encore to Microsoft Excel, the following information isexported:
Signal name
Export date and time
Signal units
Data values
Encore offers sophisticated, builtin test reporting capability whichprovides the ability to present data in a professional manner. WithEncore’s test report capability, users can easily develop in-depth testreports. Within Encore’s Project Report tab users can drag signalsfrom the application directly into the report and then enter text, changefonts, import images and print or export reports. Once the report iscomplete, you even have the ability to acquire new data and easilyupdate any previous report, without re-creating the report. The report canbe edited throughout the life of the project.

Refer to PDF for detail information on the Encore Software Features.

OMB-NET6220 Voltage Input Module

Number of Analog Channels: 12
ADC Resolution: 16-bits
Type of ADC: Successive approximation register (SAR)
Input Range: ±10.0V nominal; overflow will occur
if | Vin | ≥ (10.2V to 10.6V)
Sampling Mode: Simultaneous
Data Rates (fs): 1 S/s to 100 kS/s (16 selectable rates)
Multiple Device, Channel Sync Skew: 10 µs
Single Device, Channel-to-Channel Matching (Calibrated):
100 ns typical
Overvoltage Protection: ±30V
Gain Error (% of Rdg)/Offset Error: Calibrated, max (-40 to 50°C);
0.2%/±8.5 mV: calibrated, typ (25°C,±5°C); 0.02%/±1.4 mV
  Gain Drift: 10 ppm/°C
  Offset Drift: 60 µV/°C
CMRR (fin=60 Hz): -73 dB min
Input Bandwidth (-3 dB): 420 kHz min
  Resistance Between any Two AI-Terminals: 200 kΩ
Input Bias Current: 10 nA
  RMS: 1.2 LSB
  Peak-to-Peak: 7 LSB
Crosstalk: -80 dB
  10V Step: 25 µs
  20V Step: 35 µs

Number of Channels:
12 thermocouple channels;
3 internal cold-junction compensation channels
ADC Resolution: 24-bits
Type of ADC: Delta-Sigma
Voltage Measurement Range: ±80 mV
Common-Mode Range
  Channel-to-COM: ±1.5V
  Common-to-Earth Ground: ±250V
Common-Mode Rejection Ratio (0 to 60 Hz)
  Channel-to-COM: 95 dB
  Common-to-Earth Ground: >170 dB
OMB-NET6222 Thermocouple Types and Ranges
Refer to PDF for detail information on the Thermocouple Types and Ranges.
Cold-Junction Compensation Accuracy
(using provided connectors and properly installed backshells):

0 to 50°C: 0.6°C (1.1°F) typ, 1.3°C (2.3°F) max;
-40 to 50°C: 1.7°C (3.1°F) max
Data Rate (fs): 2 S/s
Input Bandwidth (-3 dB): 15 Hz
Noise Rejection: 85 dB min at 50/60 Hz
Overvoltage Protection: ±30V between any input and common
Differential Input Impedance: 20 MΩ
Input Current: 50 nA
Input Noise: 1 µVrms
Gain Error (using provided connectors and properly installedbackshells):
0.05% max at 25°C (77°F), 0.06% typical at -40 to 50°C,
0.1% max at -40 to 50°C (-40 to 122°F)
Offset Error (using provided connectors and properly installedbackshells):
15 µV typ, 20 µV max
Gain Error from Source
Impedance: 0.05 ppm per Ω sourceimpedance due to input impedance
Offset Error from Source Impedance: 0.05 µV typ, 0.07 µVmax per Ω source
impedance due to input current
Safety Voltage (Channel-to-COM): ±30V max
Isolation (Channel-to-Channel):
Within each four channel internal module, no isolation betweenchannels;
between each four channel internal module, 250V isolation

Number of Analog Channels: 12
Bridge Completion
  Full and Half: Internal
  Quarter: External
ADC Resolution: 24-bits
Type of ADC: Delta-sigma (with analog pre-filtering)
Sampling Mode: Simultaneous
Data Rates (fs): (50 kS/s)/n, n = 1, 2 to 31
Multiple Device, Channel SYNC
Skew: 1 sample period
Single Device, Channel-to-Channel Matching
350 nS (max)
Master Timebase (Internal)
  Frequency: 12.8 MHz
  Accuracy: ±100 ppm max
Nominal Full-Scale Range: ±25 mV/V
Scaling Coefficient: 2.9802 nV/V per LSB
Overvoltage Protection Between any Two Terminals: ±30V
Accuracy (Excluding Offset Null or Shunt Calibration):
Calibrated max [-40 to 50°C (-40 to 122°F)], 0.20% ofrdg, 0.0625 mV/V offset;
Calibrated typical (25°C, ±15°C), 0.05% of rdg,0.0125 mV/V offset
Gain Drift: 10 ppm/°C max
Offset Drift
  2.5V Excitation: 0.6 µV/V per °C
  3.3V Excitation: 0.5 µV/V per °C
  5V Excitation: 0.3 µV/V per °C
  Excitation: 0.2 uV/V per °C
Channel-to-Channel Matching (Calibrated):
0 to 1 kHz, 0.15% gain typical, 0.3% gain maximum; 1 to 20 kHz,
0.4% gain typical, 1.1% gain maximum
Common-Mode Voltage
  All Signals to Earth Ground: ±60 Vdc
Common-Mode Rejection Ratio (CMRR)
  Relative to Earth Ground Measured with a BalancedCable):
-140 dB @ 0 to 60 Hz
  Relative to EX–: -85 dB @ 0 to 1 kHz
Excitation Noise: 0.1 mV/Vrms
  1 kHz: -110 dB
  10 kHz: -100 dB
Shunt Calibration
  Resistance: 100 kΩ
Resistor Accuracy: 25°C (77°F): ±110 Ω, -40 to 50C
(-40 to 122°F): ±200 Ω
  Internal Voltage: 2.5V, 3.3V, 5.0V, 10.0V
  Internal Power: 450 mW max
  External Voltage: 2 to 10V

OMB-NET6230, OMB-NET6231
Number of Analog Channels: 12
ADC Resolution: 24-bits
Type of ADC: Delta-Sigma (with analog pre-filtering)
Sampling Mode: Simultaneous
Data Rate Range (fs)
  Minimum: 1.613 kS/s
  Maximum: 50 kS/s
Data Rates (fs): (50 kS/s)/n, n = 1, 2 to 31
Multiple Device, Channel Sync Skew: Sample period
Single Device, Channel-to-Channel Matching (Calibrated)
  OMB-NET6230: 208 nS (max)
  OMB-NET6231: 125 nS (max)
Master Timebase (Internal)
  Frequency: 12.8 MHz
  Accuracy: ±100 ppm max
Operating Voltage Range:
OMB-NET6230: ±10 Vdc nominal,±10.52 Vdc typical ±10.3 Vdc min
OMB-NET6231: ±60 Vdc nominal,±62.64 Vdc typical, ±61.5 Vdc min
Overvoltage Protection: ±100V
Input Coupling: DC
Input Impedance (AI+ to AI-): 1 MΩ
Accuracy (OMB-NET6230 Typical Range ±10.52 Vdc):
Calibrated max (-40 to 50°C), 0.13% of rdg, ±6.31 mV offset;
calibrated typical (25°C, ±5°C), 0.03% of rdg, ±842 µV offset
Accuracy (OMB-NET6231 Typical Range ±62.64 Vdc):
Calibratedmax (-40 to 50°C), 0.13% of rdg, ±31.3 mV offset;
calibrated typical(25°C, ±5°C), 0.03% of rdg, ±5.01 mV offset
Input Noise
  OMB-NET6230: 70 µVrms
  OMB-NET6231: 320 µVrms
  Gain Drift: ±5ppm/°C
  Offset Drift
  OM-NET6230: ±24 µV/°C
  OM-NET6231: ±150 µV/°C
Post Calibration Gain Match (Ch-to-Ch, 20 kHz): 0.22 dB max
Crosstalk (1 kHz): -130 dB
CMRR (fin = 60 Hz)
  OMB-NET6230: 126 dB
  OMB-NET6231: 116 dB
Isolation: Channel-to-earth ground (continuous);
250 Vrms: channel-to-channel, (continuous); 250 Vrms

Channels: 8 digital I/O, programmable as a single port, or asindividual lines
Power-Up Mode: Inputs pulled low
Connector: DB-9 female
Programmable Input Scanning Modes
  Asynchronous: Under program control at any time relative toanalog scanning
  Synchronous: Data captured synchronously with the analogchannels
Input Levels
Low: 0 to 0.8V
High: 2.0 V to 5.0V
Input Voltage Range without Damage:-0.6V to 5.6V max
Input Pull-Down Resistor: 10 kΩ
Output Voltage Range: 0 to 3V(may be externally pulled up to 5.6V without damage)
Output Resistance: 40 Ω
Output Levels:Refer to OMB-NET6000 Series Digital Output graph
Sampling: 1 MHz max continuous
Output Timing: Outputs are always written asynchronously

Channels: Up to 4 independent
Resolution: 32-bit
Input Frequency: 20 MHz max
Input Characteristics: 10 kΩ pulldown
Trigger Level: TTL
Minimum Pulse Width: 25 ns high, 25 ns low
Programmable Modes: Counter, encoder
Encoder Resolution: x1 (default), x2, and x4
Encoder Sources: There are 3 encoder sources (A, B, and Z)
that be assigned to any digital pin x
Counter Source: Internal clock, timer 1, timer 2, and digital pin x;
one source can be used in multiple counters
Counter Mode Options: Totalize, clear on read, rollover, stop at thetop,
increment, decrement, rising edge, falling edge
Counter Gate Options: Unused, internal clock, timer 1, timer 2,
anddigital pin x; one gate can be used in multiple counters

Operating Ambient: -40 to 50°C (-40 to 122°F),
10 to 90% RHnon-condensing
Storage: -40 to 75°C (-40 to 167°F), 5 to 95% RH
Ingress Protection: IP 40
Power Consumption:
OMB-NET6220, OMB-NET-6230, OMB-NET6231:
5.5 W typical, 6 W max;
OMB-NET6222: 4.1 W max;
OMB-NET6224; 6.3 W typ, 6.6 W max
Dimensions:30.5 H x 276.9 W x 169.8 mm D
(1.2 x 10.9 x 6.7")
OMB-NET-6220: 1.36 Kg (3 lbs);
OMB-NET-6222: 1.22 Kg (2.7 lbs);
OMB-NET6224: 1.3 Kg (2.88 lbs);
OMB-NET6230 and OMB-NET6231: 1.24 Kg (2.7 lbs)
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