How to Maintain Touch Accuracy in High-Traffic Environments

Proper Cleaning Technique

Touch sensors lose accuracy when oils and debris accumulate on glass.
Clean frequently using microfiber cloths slightly dampened with 70 percent isopropyl alcohol.

Never use ammonia, window cleaners, or abrasive pads because these leave residues or cause micro-scratches.
Spray solution onto the cloth rather than directly on the display to prevent drips from entering bezels.

In food service or public areas, cleaning intervals should be every few hours. For light environments, once daily is sufficient.

Checking and Restoring Calibration

Modern ELO PCAP screens rarely drift, but heavy tapping or temperature swings can misalign touch points.
Use the built-in calibration tool:
• Tap displayed targets precisely
• Save the calibration profile
• Test touch accuracy on small UI buttons

Recalibration typically restores accuracy instantly.

For Windows models, ensure that touch drivers remain updated.
For Android models, verify that no third-party apps interfere with touch sensitivity or scaling.

Environmental Influences on Touch

Humidity affects capacitive technology.
Excess moisture from cleaning or condensation reduces sensitivity temporarily.
Ensure kiosks stay in controlled humidity environments below 80 percent.

Temperature too low or too high increases latency.
Ideal operating range is 10 to 35 degrees Celsius.
Avoid placing screens directly under HVAC vents.

Preventing Cable Issues

Touch accuracy depends on stable USB communication.
Loose USB cables can cause intermittent touch failure or misalignment.
Inspect cable routing weekly, especially inside kiosks where vibration or customer interaction may loosen connectors.

Use cable ties, strain relief clips, and short cable runs to prevent excessive movement.

Regular Maintenance Schedule

A structured routine helps maintain long-term performance:
• Clean: daily
• Check calibration: monthly
• Inspect cabling: weekly
• Review ELOView diagnostics: weekly
• Replace protectors: every 6 months

Use ELOView logs to identify devices with repeated touch errors or anomalies.

Example

A national fast-casual chain monitored 300 ELO displays across stores. After implementing a consistent cleaning and calibration routine, touch-related service tickets dropped from roughly 80 per month to under 10, saving significant maintenance labor.

Final Thoughts

Touch accuracy depends on cleanliness, environment, and cabling. With simple recurring maintenance, ELO displays remain precise even under constant heavy use.

Tags: Calibration, Maintenance, Cleaning, Touch Accuracy
Author: Emilio Bourdages
Blog: Learn