Omega Products OMB-NET6220 User Manual

Ethernet-Based Temperature, Voltage and Strain Measurement Modules

OMB-NET6220 shown smaller than actual size.

OMB-NET6000 Series

U 12 Analog Inputs U 8 Digital I/O U Simultaneous Sampling U Multiple Trigger Modes U Compact Modular Design U Expandable Using Multiple

OMB-NET60000 Series Modules

The OMB-NET6000 Series with Encore software combines accurate, Ethernet-based DAQ modules with powerful, easy-to-use software. OMB-NET6000 Series devices feature integrated signal conditioning and a modular design with built-in channel expansion capability (by adding additional OMB-NET6000 Series modules).

Because the OMB-NET6000 Series uses an Ethernet connection, devices can be connected directly to a PC or used in remote conﬁgurations utilizing multiple devices. Devices are offered for voltage, thermocouple, or direct strain inputs.

Each device includes 12 analog input channels. The OMB-NET6220 offers 12 voltage inputs, BNC connectors, 16-bit resolution, and a 100 kHz per channel sample rate. The OMB-NET6222 is a 12-channel, 24-bit thermocouple input device. The OMB-NET6224 offers direct strain 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 digital I/O channels. Included with each OMB-NET6000 Series device is new Encore interactive measurement software. Encore combines an intuitive user interface with robust functionality. It allows users to quickly conﬁgure hardware, develop and customize data displays, analyze data with built-in analysis tools, and provides the ability to develop comprehensive test reports.

Utilizing the connectivity of an Ethernet based system, multiple OMB-NET6000 series devices can be combined to build expandable,

mixed signal systems. These systems can be used in a central location, or in distributed or remote conﬁgurations.

ANALOG INPUTS OMB-NET6220

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

Encore measurement and

analysis software

OMB-NET6000 Series Device Overview Feature OMB-NET6220 OMB-NET6222 OMB-NET6224 OMB-NET6230 OMB-NET6231

Analog Input type Voltage Thermocouple Strain gage/bridge Voltage Voltage Analog Inputs 12 12 12 12 12 Digital I/O 8 8 8 8 8 Resolution 16-bit 24-bit 24-bit 24-bit 24-bit Sample Rates 100 kHz 2 Hz 50 kHz 50 kHz 50 kHz Voltage Input Range ±10V ±80 mV ±25 mV/V ±10 V ±60 V Connector Type BNC Screw-terminal RJ50 Screw-terminal Screw-terminal

Ch-to-ch Isolation - - - Yes Yes

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All models shown smaller than actual size.

OMB-NET6224

OMB-NET6222

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

OMB-NET6224 DIRECT STRAIN GAGE INPUTS

The OMB-NET6224 is equipped with 12 analog input channels capable of measuring full-, half-, or quarterbridge sensors. Each of the 12 analog channels has its own 24-bit ADC and input ampliﬁer allowing all 12 channels to be sampled simultaneously.

The OMB-NET6224 also includes anti-aliasing ﬁlters. All strain input signals are attached via 12 RJ50 connectors mounted on the front of the module.

The OMB-NET6224 features direct strain gage inputs. Half or full-bridge sensors are supported. Quarter-bridge sensors are also supported using an external resistor. The OMB-NET6224 is also 100% software programmable. Excitation, auto-zero, and shunt calibration are each adjusted in software without relying on manually adjusted trimpots which can cause increased error and drift. Excitation is provided by the OMB-NET6224 and can be software selected for 2.5V, 3.3V, 5V, or 10V. For excitation values beyond those listed, an external excitation source may be used. Connectors are provided on the front of the unit for excitation source wiring.

OMB-NET6222

SHUNT CALIBRATION

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

REMOTE SENSING

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

SIGNAL CONNECTIONS

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

FULL- AND HALF-BRIDGE CONFIGURATIONS

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

QUARTER-BRIDGE CONFIGURATIONS

For quarter-bridge conﬁgurations the OMB-NET-CN-269 and OMB-NET-CN-270 feature 120 Ω and 350 Ω internal bridge completion resistors respectively. The OMB-NET-CN-269 and OMB-NET-CN-270 feature an RJ50 female connector one end and screw terminals 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 with a ±10 V range. The OMB-NET6231 includes a ±60 V range. Each analog input features a 24-bit ADC with a maximum 50 kHz sample rate per channel. All channels are sampled simultaneously. The OMB-NET6230 and OMB-NET6231 also include 250 Vrms channelto-channel isolation for increased signal integrity and protection.

DIGITAL I/O

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

COUNTERS

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

TRIGGERING

A variety of trigger modes are supported by the OMB-NET6000 Series. A wide selection of programmable analog and digital trigger modes are available for starting an acquisition. All trigger modes, along with the number of scans and the sample rate for preand post-trigger data, are software programmable prior to the start of a scan sequence.

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ENCORE SOFTWARE FEATURES (Refer to Screen Capture Above)

1. Signal Explorer displays the data

sources, computations, snapshots and logs available for your project. It also allows you to select and drag signals into the Data View. Signals can also be dragged directly into Excel.

2. Log Window displays a list of

a projects logged data (including snapshots) sorted by the time at which you recorded the log or took the snapshot.

3. Snapshots allow you to save a

record of the current values of any signal in your project. You can use snapshots as a reference signal to compare data within the same or another project.

4. Data View tab allows you to

view your data by dragging signals directly from the Signal Explorer or the Log Window. The Data View tab can display signals in several formats, including graphs, charts, and various numeric representations. When you drag a signal to the Data View tab, the signal appears in a new or existing display depending on whether a display showing that type of data already exists.

5. Legend (Graph Legend) lists

every signal displayed in the graph and also shows its corresponding plot color.

6. Channel View is a table-style

section which gives you an overview of all your channels and their settings. You can enable (or disable) channels, select the measurement type, enable (or disable) logging, perform mx+b calculation, and more. You can also use the Channel View toolbar to quickly jump to Acquisition Configuration or (system) Calibration windows.

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