94 lines
4.3 KiB
Markdown
94 lines
4.3 KiB
Markdown
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## General Information
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This document details the differences between the factory configuration of the Endress+Hauser Promass 500DP and the specific configuration implemented for the CO2 system in the mixer.
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### Device Information
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| Parameter | Factory Configuration | CO2 System Configuration |
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|-----------|----------------------|--------------------------|
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| Device tag | Promass300/500DP | Promass300/500DP |
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| Serial number | X10F9F02000 | X10F9F02000 |
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| Firmware version | V1.00.02 | V1.00.02 |
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| Nominal diameter | DN15 / 1/2" | DN15 / 1/2" |
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## Key Configuration Differences
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### 1. Measurement Units
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| Parameter | Factory Values | CO2 System Values | Impact |
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|-----------|---------------|-------------------|--------|
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| Mass flow unit | kg/h | g/min | Higher precision for real-time process control |
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| Mass unit | kg | g | Consistent with flow units |
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| Density unit | kg/l | g/ml | Consistent with mass units |
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| Medium selection | Liquid | Gas (Carbon dioxide CO2) | Correctly configured for CO2 measurement |
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### 2. Communication and Fieldbus
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| Parameter | Factory Values | CO2 System Values | Impact |
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|-----------|---------------|-------------------|--------|
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| Device address | 126 | 22 | Specific address in PROFIBUS network |
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| Status PROFIBUS Master Config | Not active | Active | Confirmation of active communication with PLC |
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| Bus termination | Off | On | Proper network termination for signal integrity |
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### 3. Analog Output Configuration
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| Parameter | Factory Values | CO2 System Values | Impact |
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|-----------|---------------|-------------------|--------|
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| 0/4 mA value (Output 1) | 0.000 kg/h | 0.000 g/min | Adjusted to system units |
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| 20 mA value (Output 1) | 1300.000 kg/h | 250000.0 g/min | Range adjusted for CO2 dosing process |
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| 100% bargraph value 1 | 1300.000 kg/h | 250000.0 g/min | Display range consistent with operational range |
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### 4. Low Flow Cut Off
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| Parameter | Factory Values | CO2 System Values | Impact |
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|-----------|---------------|-------------------|--------|
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| On value low flow cutoff | 26.0000 kg/h | 4333.333 g/min | Adjusted to eliminate noise readings when idle (26 kg/h ≈ 433 g/min) |
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| Off value low flow cutoff | 50% | 50% | No change |
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### 5. Partially Filled Pipe Detection
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| Parameter | Factory Values | CO2 System Values | Impact |
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|-----------|---------------|-------------------|--------|
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| Assign process variable | Density | Off | Disabled as not applicable for gas measurement |
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### 6. Analog Input Configuration
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| Parameter | Factory Values | CO2 System Values | Impact |
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|-----------|---------------|-------------------|--------|
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| Analog input 3 Channel | Corrected volume flow | Density | Modified for density monitoring |
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### 7. Calibration and Adjustments
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| Parameter | Factory Values | CO2 System Values | Impact |
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|-----------|---------------|-------------------|--------|
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| Calibration factor | 1.8568 | 1.8568 | No change |
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| Zero point | 23 | 23 | No change |
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| Calibration date/time | 16.01.25 05:52 | 16.01.25 05:52 | Same calibration |
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## Performance Parameters
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The device is configured with all the necessary performance parameters for CO2 measurement, with measurement status indicators showing "Good" for all active channels, indicating reliable operation.
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## Recommendations
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1. **Monitor flow range**: Verify that the configured range of 0-250000.0 g/min is appropriate for all operating conditions of the CO2 system.
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2. **System integration verification**: Confirm that the PROFIBUS address (22) is correctly recognized by the control system.
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3. **Density measurement validation**: Although CO2 density is relatively low, confirm that the density measurements are accurate for process control.
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4. **Document future calibrations**: Maintain records of any additional adjustments made to the instrument.
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## Conclusions
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The Promass 500DP configuration for the CO2 system has been specifically adapted to:
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1. Work with more appropriate units for gas measurement (g/min instead of kg/h)
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2. Establish measurement ranges appropriate for CO2 dosing (250000 g/min)
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3. Configure the device specifically for carbon dioxide gas measurement
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4. Set up PROFIBUS communication with the appropriate address for the system
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5. Disable density-based partially filled pipe detection, which is not applicable for gas measurement
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These changes optimize the flowmeter's performance for its specific application in the CO2 dosing process.
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