Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |

The OVATION 7379A31G03 Q-Line Analog Input Card is an analog input module used in Emerson Ovation Q-Line control-system hardware.
Analog input cards acquire continuously varying electrical signals from field instruments and make the measured information available to the control system. This allows an Ovation controller to monitor process variables rather than only discrete ON/OFF states.
Typical signals associated with analog measurement include temperature, pressure, flow, level, speed, and other continuously changing process values. The 7379A31G03 forms part of the Q-Line I/O architecture and connects field measurement points with the control-system processing layer.
The card is suitable for existing Ovation installations where analog process monitoring is required and is also relevant to Q-Line maintenance, troubleshooting, and replacement projects.
| Parameter | Specification |
|---|---|
| System | Ovation |
| Model | 7379A31G03 |
| Product Family | Q-Line |
| Product Type | Analog Input Card |
| Signal Type | Analog Input |
| Application | Industrial Automation / Process Control |
| System Integration | Q-Line Control System |
| Dimensions | 200 × 35 × 120 mm |
| Weight | 0.63 kg |
The 7379A31G03 receives analog signals from field instrumentation and transfers the corresponding measurement information into the Ovation control system.
A simplified signal path is:
Field Instrument → Analog Signal → 7379A31G03 → Q-Line System → Controller → Control / Monitoring Application
The input signal represents a physical process variable. The analog input card receives the electrical signal and processes it into information that can be used by the control system.
Typical process variables include:
The controller can then use the acquired values for display, alarm processing, calculations, control loops, trending, and other application functions.
Analog measurement differs from digital input monitoring because the value itself carries process information.
| Signal Information | Example |
|---|---|
| Temperature | Actual measured temperature |
| Pressure | Process pressure |
| Flow | Current flow rate |
| Level | Tank or vessel level |
| Speed | Rotating-equipment speed |
| Position | Valve or actuator position |
| Process Value | Continuously changing measurement |
The quality of the final process value depends on the complete measurement chain, including the field instrument, wiring, input circuitry, system configuration, and controller application.
The 7379A31G03 occupies the analog acquisition layer of the Q-Line control system.
| System Element | Function |
|---|---|
| Field Instrument | Measures the physical process |
| 7379A31G03 | Acquires analog input information |
| Q-Line Backplane | Provides internal card interconnection |
| Controller | Processes the acquired values |
| Control Application | Uses process data |
| HMI | Displays operating information |
| Engineering System | Configuration and diagnostics |
| Output Hardware | Sends control commands to field equipment |
This architecture allows field measurements to become usable process data within the Ovation control application.
| Application | Typical Use |
|---|---|
| Power Generation | Process measurement acquisition |
| Boiler Control | Temperature, pressure, and level monitoring |
| Turbine Systems | Equipment and process measurement |
| Process Automation | Continuous variable monitoring |
| Industrial Utilities | Analog instrumentation |
| Manufacturing | Machine process measurement |
| Plant Automation | Centralized analog data acquisition |
| Ovation Maintenance | Q-Line analog input replacement |
For an incorrect analog reading, the field instrument, signal wiring, input channel, configuration, and controller application should all be considered during troubleshooting.
| Component | Function |
|---|---|
| OVATION 7379A31G03 | Q-Line Analog Input Card |
| Q-Line Rack | Card mounting and system integration |
| Q-Line Backplane | Internal system interconnection |
| Ovation Controller | Process-data handling and control |
| Field Transmitters | Generate analog measurement signals |
| Analog Signal Wiring | Carries measurement signals |
| HMI | Process-value display |
| Engineering System | Configuration and diagnostics |
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| OVATION 7379A31G03 | Q-Line Analog Input Card | Analog process measurement |
| Ovation Q-Line Analog Input Cards | Analog I/O Hardware | Continuous signal acquisition |
| Ovation Q-Line Digital Input Cards | Digital Input Hardware | Discrete signal monitoring |
| Ovation Q-Line Digital Output Cards | Digital Output Hardware | Discrete equipment control |
| Ovation Q-Line QAV Cards | Q-Line System Cards | Control-system functions |
| Ovation Controller Cards | Controller Hardware | Process control |
| Ovation Communication Cards | Communication Hardware | System data exchange |
An analog input card acquires continuously varying values, while a digital input card normally monitors discrete states such as ON/OFF, open/closed, or energized/de-energized.
The card acquires the analog signal and makes the corresponding measurement information available to the Q-Line control system. The controller can then use that information for monitoring, alarms, calculations, trending, or control functions.
The problem may originate from the field transmitter, wiring, signal conditioning, channel configuration, or application scaling. A complete signal-path check is therefore more useful than replacing the input card immediately.
Common applications include temperature, pressure, flow, level, speed, and position measurement. The applicable signal type and measurement range depend on the field instrumentation and system configuration.