While the miniSMU MS01 is designed for minimal maintenance, following these recommended procedures will help ensure optimal performance and longevity of your device. This section provides guidance on regular maintenance tasks.

Cleaning

Regular cleaning helps maintain the appearance and functionality of your miniSMU MS01.

External Cleaning

1. Power Off the Device

   • Always turn off the device and disconnect all power sources before cleaning
   • Allow the device to cool if it has been operating for an extended period

2. Clean the Enclosure

   • Use a soft, dry cloth to wipe the exterior surfaces
   • For stubborn dirt, slightly dampen the cloth with water and wring it thoroughly before use
   • Ensure no moisture enters any openings or connectors
   • Avoid using liquid cleaners, solvents, or abrasives, as these may damage the device

Connector Cleaning

1. BNC Connectors

   • Inspect BNC connectors for dirt, dust, or oxidation
   • Use compressed air (low pressure) to remove dust from connector openings
   • For oxidation, use a specialised electrical contact cleaner
   • Apply the cleaner to a lint-free swab, not directly to the connector
   • Gently clean the connector surfaces

2. USB-C Port

   • Use compressed air (low pressure) to clear dust from the USB-C port
   • Be extremely gentle when cleaning this connector to avoid damaging the pins
   • Consider using specialised USB port cleaning tools if available

Cooling System Maintenance

1. Fan Cleaning

   • The cooling fan should be inspected and cleaned regularly, especially in dusty environments
   • Power off the device completely before cleaning the fan
   • Immobilise the fan from freely spinning by carefully inserting a screwdriver to block the fan blades
   • Use clean, compressed air to blow off any dust from the fan
   • Never insert objects into the fan while it's operational

2. Ventilation Openings

   • Check that all ventilation openings are clear of dust and debris
   • Use compressed air to clear ventilation slots and openings
   • Ensure the device has adequate airflow around it during operation

Connections Inspection

Regular inspection of connections helps prevent measurement issues and ensures electrical safety.

1. BNC Connector Inspection

   • Check for physical damage, bent pins, or loose parts
   • Verify that the central pin is straight and properly aligned
   • Ensure the connector threads move freely without binding
   • Look for signs of corrosion or excessive wear

2. USB-C Port Inspection

   • Check for debris or damage in the USB-C port
   • Verify that the port is securely attached to the device
   • Look for bent pins or other irregularities

3. Power Input Inspection

   • Examine the DC barrel connector for damage or debris
   • Check that it seats properly when connected to the power adapter
   • Look for signs of overheating or discoloration

4. Cable Inspection

   • Regularly inspect all cables for cuts, fraying, or kinks
   • Check cable strain reliefs for damage
   • Verify that all cable connectors fit securely
   • Replace damaged cables immediately

Calibration

Maintaining calibration is essential for accurate measurements.

1. Calibration Interval

   • For optimal accuracy, we recommend annual calibration of your device
   • More frequent calibration may be necessary in critical applications
   • Keep track of the calibration due date (typically 12 months from the last calibration)

2. Calibration Services

   • Contact our (support)[mailto:support@undalogic.com] for information on calibration services
   • Professional calibration includes:
     • Verification of all measurement ranges
     • Adjustment of internal references if needed
     • Updated calibration certificate
     • Firmware updates if available

3. Self-Verification Checks

   • Between formal calibrations, you can perform basic verification:
     • Measure known reference voltages or currents
     • Compare with readings from a recently calibrated instrument

Storage

Proper storage when not in use helps maintain device condition.

1. Short-Term Storage (less than 1 month)

   • Power off the device
   • Disconnect all cables
   • Store in a clean, dry environment
   • Cover with a dust cover if available

2. Long-Term Storage (more than 1 month)

   • Power off the device
   • Disconnect all cables and the power adapter
   • Attach protective caps to BNC connectors if available
   • Remove the WiFi antenna and store it separately
   • Store the device in the original packaging if possible
   • Store in a cool, dry place away from direct sunlight
   • Avoid temperature extremes and high humidity
   • Consider using desiccant packets for humid environments

3. After Long-Term Storage

   • Allow the device to acclimate to room temperature before powering on
   • Inspect all connectors and openings before use
   • Perform a basic self-test before critical measurements

Maintenance Records

Maintaining good records helps track the device history and plan for future maintenance.

1. Maintenance Log

   • Create a maintenance log that includes:
     • Cleaning dates
     • Inspection results
     • Issues identified
     • Repairs performed
     • Calibration dates
     • Firmware updates

2. Environmental Exposure

   • Note any unusual environmental conditions the device has been exposed to
   • This can help identify potential issues and determine maintenance needs

Professional Maintenance

Some maintenance should only be performed by qualified service personnel.

1. When to Seek Professional Service
   • If you notice calibration drifting against known-good sources
   • If you observe unusual behavior, noises, or odors
   • If there are signs of internal damage or overheating
   • After exposure to liquids or extreme conditions
   • For repairs requiring internal access

By following these routine maintenance procedures, your miniSMU MS01 will provide years of reliable service. For troubleshooting specific issues, refer to the Troubleshooting Common Issues section.