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FAQ-04

How to install for qualified waterproofing?

  Introduction
Waterproof is the key factor for reliable working of surveillance camera, especially for those installed outdoors. In this report, we start briefing on the requirement of IP ratings for waterproof and then present the“total-waterproof”design features that have been implemented on MESSOA cameras. Finally, we give practical guidelines that should be followed on field installation for qualified waterproofing.
 
  Solution
A. Design for Waterproof
MESSOA implements enhanced waterproof design by following the requirement of IP66/67/68, which are IP(Ingress Protection) ratings proposed by IEC60529, to protect against the intrusion of solid objects, dust, and water by mechanical casings. The target of the requirement is described in table below:
 
Rating
Description
 
IP66
Protect against powerful water jects from any direction, eg rainwater in a stormy weather.
 
IP67
Protect against the effects of temporary immersion/falling into water.
 
IP68
Protects against the effects of continuous immersion into water.
 

To attain above targets, we extend the general waterproof design concept, which usually focuses on blocking water into the housing with a gasket, to“total-waterproof”, i.e., preventing water from infiltrating via cables and any possible adjustable points, which were usually ignored in the past. The major features include,
 
1. Total-waterproof” design on cabling from joint, strain relief to conduit:

Detachable junction good for installation

Waterproof on strain relief bushing

Accessory tape to seal the interstice between cable/conduit

 
2. Waterproof design for adjustment: 

A. Proprietary waterproof design for focus & zoom adjustment, no need to open chassis.
B. User interfaces are buried & covered away from water infiltrating.

     
B. Installation for Waterproof
Waterproofing may still fail even for a perfectly designed product if users are not equipped with related knowledge on installation. Here we expose some critical points that shall be noticed on field installation for waterproof.
 
1. Maintain gasket:
This is the most critical factor to keep water out of housing. Inspect the gasket and it must be clean and free of cracks. Tighten the screws on housing firmly so the gasket is well-pressed to prevent water infiltrating.
 
2. Keep cable dry:
Inserting the unprotected wires into a junction box is required to avoid water infiltrating.

Detachable junction good for installation

Waterproof on strain relief bushing


3. Drip loop:
Waterproofing may still fail even for a perfectly designed product if users are not equipped with related knowledge on installation. Here we expose some critical points that shall be noticed on field installation for waterproof.

 
4. Sealant:
Apply sealant such as silicone on holes, voids and gaps which have potential risk to water leakage. Following instructions on products users guide is highly recommended to eliminate the risk on installation.
 
   Compatible Products  

 

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