1. Overview of PR235 Calibrator

• Functions: Temperature, pressure, and multi-channel signal calibration

• Features: High-precision sensors, built-in standard curves, multi-point calibration, and data logging

• Applications: Laboratory calibration, industrial process verification, and on-site equipment maintenance

2. Step-by-Step PR235 Usage Tutorial

Step 1: Preparation

1. Check Equipment

• Ensure PR235 is fully charged or connected to power

• Inspect heating block, probe sleeves, and connectors for cleanliness

2. Identify Calibration Points

• Define required temperature or pressure points based on the instrument or process standard

3. Safety Precautions

• Wear protective gloves when handling the heating block

• Maintain proper ventilation in the work area

Step 2: Setting Up the Device

1. Power on the PR235 and select calibration type (temperature, pressure, or signal)

2. Input desired set points for calibration

3. Allow the heating block to reach the target temperature or the system to stabilize

Step 3: Performing the Calibration

1. Insert the device probe or sensor into the correct sleeve or connector

2. Wait for readings to stabilize (usually a few minutes)

3. Record readings from both the PR235 and the device under calibration

4. For multi-point calibration, repeat the process at each set point

Step 4: Data Logging and Export

1. Use the PR235 built-in storage to log data

2. Export data via USB or wireless connection for reporting and documentation

3. Save calibration results for quality control records

3. Common Pitfalls and How to Avoid Them

1. Incorrect Probe Insertion

• Problem: Loose or shallow insertion can lead to inaccurate readings

• Solution: Ensure probes fit snugly and maintain consistent depth

2. Insufficient Temperature Stabilization

• Problem: Recording data before the system stabilizes causes errors

• Solution: Wait until readings are stable for at least 1–2 minutes

3. Ignoring Multi-Channel Configuration

• Problem: Overlooking channel selection may result in skipped measurements

• Solution: Double-check channel assignments and calibration settings

4. Data Management Errors

• Problem: Manual recording or missing logs can affect traceability

• Solution: Use PR235 automatic logging and export features to ensure data integrity

5. Environmental Factors

• Problem: Drafts, humidity, or nearby heat sources can affect precision

• Solution: Perform calibration in a controlled environment whenever possible

4. Tips for Calibration Beginners

• Always follow step-by-step procedures and double-check set points

• Start with single-point calibrations to get familiar with the device

• Use protective equipment and handle the heating block carefully

• Regularly maintain and clean the PR235 to ensure accurate performance

• Document all calibration steps for future reference and compliance

5. Conclusion

The PR235 calibrator is a powerful tool for beginners and experienced technicians alike. By following this complete tutorial and being aware of common pitfalls, new users can perform accurate, efficient, and safe calibrations. Mastery of the PR235 not only improves measurement reliability but also strengthens quality control practices in any industrial or laboratory setting.