2 replies to this topic

[Shuster.35]

Hi all, 

 

My company has purchased several checkweigher systems and I'm not as familiar as I need to be with them. I understand the concepts but need guidance on a few items. I realize all facilities are different and everything is based off risk but I'm asking...  

 

1. How often do you verify them? How do you verify them? 

2. How do you handle rejects? 

3. Any related "best practices". 

 

 

If there is a thread on this please point me to it. 

 

Thanks, 

Jon 

[Scampi]

Jon, your state, or federally should have allowable tolerances by unit of measure and size that will help you determine what your allowable under limits are, as for over, that will be a company/product decision

 

A whole turkey breast weighs quite a bit, so you won't be able to be over by 1 whole breast, but if it's jelly beans, the overage allowance could end up being 50 jelly beans

 

https://nvlpubs.nist...IST.SP.1020.pdf

 

Rejects will need to be handled manually and most systems will not print a label if the unit is too far over/under the target

 

Your frequency of verification will depend on how many checkweighs the machine does in an hour/day/week    Daily verification until you're sure of the accuracy and then reduce frequency slowly 

 

Lean on the manufacturer hard, they should know the capabilities inside and out and help you get off on the right foot

[Charles.C]

Hi all, 

 

My company has purchased several checkweigher systems and I'm not as familiar as I need to be with them. I understand the concepts but need guidance on a few items. I realize all facilities are different and everything is based off risk but I'm asking...  

 

1. How often do you verify them? How do you verify them? 

2. How do you handle rejects? 

3. Any related "best practices". 

 

 

If there is a thread on this please point me to it. 

 

Thanks, 

Jon 

Hi Jon,

 

You might try search "checkweigher". Gave me 61 hits. If you nominate "posts" can scan through them.

 

The details likely relate to what you are controlling/specifications. Some manufacturer's  manuals suggest frequency of verification.