ບຳລຸງຮັກສາກ້ອງ ແລະ ເຄື່ອງບັນທຶກ ທຸກ 6 ເດືອນ: ກວດຫຍັງແດ່บำรุงรักษากล้องและเครื่องบันทึกทุก 6 เดือน: ตรวจอะไรบ้างCCTV maintenance every six months: what to check

A camera system works every day through sun, rain and dust. A check every six months catches problems before they become serious.

Cameras

• 1. Clean lenses and domes: use a soft cloth and no harsh cleaners. Dust and cobwebs blur the picture and reflect infrared at night
• 2. Check angle and focus: wind and vibration can turn a camera. Compare with the view at handover
• 3. Check night images: make sure infrared or the floodlight still works and reaches far enough

Cables and joints

• 4. Cable joints and weatherproof boxes: no water inside, no rust and no loose connections, especially on outdoor cameras
• Look for cables damaged by sun or by animals

Recorder

• 5. Hard disk health: check the status in the menu and look for warnings
• 6. Days of recording: play back old footage to confirm you still have the full period you set
• 7. Date and time: must be correct; wrong time makes footage hard to find and weaker as evidence
• Blow out dust and check that the cooling fan still turns

Security and power

• 8. Updates and passwords: update firmware from official sources, change default passwords and remove accounts no longer in use
• 9. UPS: test that it still holds the load and check the battery age

Do it yourself or call a technician

Owners can check points 1, 6 and 7 themselves. Working at height, checking cable joints and updating devices are best left to a technician, for safety and so settings are not lost.

Alisa maintains CCTV systems, both those we installed and existing systems.