DP Transmitter Calibration Simulator
Do the job like a technician: 1 Safety, 2 Pick tools, 3 Connect, 4 Calibrate (5 points up and down), 5 Restore. Click the valves on the picture, pick the tools, press the buttons. Mistakes show what really happens. Use Next step to move on.
Procedure map (click a step)
Hint
1 Safety first
Live bench readings
| Applied pressure | |
| Standard mA | |
| Multimeter (cross-check) | |
| Difference | |
| HART digital PV | |
| mA converted to % |
Results table
| Point | Ideal mA | Up mA | Down mA | Err up | Err dn |
|---|
Calibration certificate
| As-found worst error | |
| As-left worst error | |
| Up/down difference (hysteresis) | |
| Standard ratio (TUR) | |
| Result |
Which instrument for which job
| Instrument | Use it for | Remember |
|---|---|---|
| Hand pump + test gauge | Quick field check | Not accurate enough to calibrate |
| Pressure calibrator + module | Standard in the field | Pick a module near the transmitter range |
| Deadweight tester | Lab reference | Very accurate, slow, needs a stable bench |
| Pressure controller | Automatic, repeatable tests | Costly, needs clean gas supply |
| Loop calibrator (mA) | Measure and power the loop | Use as the mA standard |
| Multimeter | Cross-check the mA | Never the main standard; always in series |
| HART communicator | Trim, re-range, read digital PV | Compare PV with mA to find a DAC error |
DP Transmitter Calibration Simulator
Learn how to calibrate a Differential Pressure (DP) transmitter step by step using this interactive instrumentation simulator. Practice safe isolation, selecting calibration tools, connecting a 4–20 mA loop, performing a five-point calibration test, and restoring the transmitter to service.
What You Can Learn
- Safety and isolation: Understand manifold valve operation and safe depressurization.
- Calibration tools: Select suitable pressure and current standards.
- Loop connections: Learn correct mA meter connections and 24 V loop supply setup.
- Five-point calibration: Test 0%, 25%, 50%, 75%, and 100% in rising and falling directions.
- Zero, span and DAC trim: Understand common transmitter errors and adjustment methods.
- Calibration results: Review errors, hysteresis, tolerance and as-found/as-left readings.
- Restoration: Follow the steps to return the transmitter to service and complete the calibration record.
Who Should Use This Simulator?
This simulator is useful for instrumentation technicians, maintenance engineers, engineering students and beginners who want to understand practical DP transmitter calibration.
Practice before working on real equipment. This is a learning simulator, not a substitute for approved site procedures, permits, isolation requirements or manufacturer instructions.
