Comprehensive calibration laboratory for process instrumentation
In Monterrey we perform laboratory calibration not only of pressure, but of critical process variables:
- Pressure (absolute, gauge, differential)
- Temperature (RTD, thermocouples)
- Flow (DP transmitters and associated signals)
- Electrical signals (4–20 mA, V, frequency)
- Devices with HART communication
Specialized equipment used
- Fluke 754 Documenting Process Calibrator
- Fluke 753 Documenting Process Calibrator
- Fluke 720 Multifunction Pressure Calibrator
- Fluke 750P Series Pressure Modules
Temperature
- Fluke 9142 Field Metrology Well
- Fluke 9144 Field Metrology Well
- Simulation and measurement of:
- RTD (Pt100, Pt1000)
- Thermocouples (J, K, T, etc.)
Temperature capabilities
- Calibration of HART temperature transmitters
- Verification of RTD probes and thermocouples
- Comparison against a dry-block calibrator
- Evaluation of:
- Thermal error
- Stability
- Gradient
Flow calibration (real-world industrial approach)
Direct flow rate is not calibrated in the laboratory (unless a flow rig is available), but we do calibrate:
- Differential pressure flow transmitters
- Output signals (4–20 mA)
- Flow scaling (square root extraction)
- Simulation of process conditions
Electrical and loop tests
- Simulation and measurement of:
- 4–20 mA
- 0–10 V
- Frequency
- Complete loop test
- PLC / DCS verification
Advanced HART tests
- Configuration of:
- LRV / URV
- Damping
- Tag and variables
- Digital trim:
- Sensor trim
- Analog output trim
- Communication diagnostics
Advantage of the multivariable laboratory
Here is the key differentiator:
✔ You calibrate the ENTIRE loop, not just the sensor
✔ You detect integration errors (not just instrument errors)
✔ Traceable, auditable results
✔ You reduce the overall process uncertainty
