How many backup thermometers?

[Cliff]

We monitor just about everything with Rees.  We also have thermometers in all of our fridges and freezes in case a probe dies or the system goes down.  We validate these thermometers annually and that is a lot of work and a lot of money.

 

I suspect this is one of those things that is just the way we've always done it, but I wanted to see what others did.

 

For a single door fridge we have a downtime thermometer on the top and bottom shelf, for a double door fridge we have the same but on each side.

 

This adds up to a lot of downtime thermometers, about 140 total.

 

We are considering placing a single thermometer in any device regardless of size (we don't have any walk-ins) near the Rees probe.

 

What do you do?

 

Thanks

[goodchild]

Cliff, so you only have one Rees probe per storage unit?

[Cliff]

Cliff, so you only have one Rees probe per storage unit?

 

Hmm, no.  Good catch.  Single door fridge, water bath, freezer, platelet incubator and each platelet rocker have 1 probe, a double door fridge has two.

 

I guess I would revise my proposal, to have one backup thermometer paired with each Rees probe.  That would cut our thermometers almost in half.

[goodchild]

That's how we have it set up.

 

Our -80 to -40 freezers are the only exception with two thermometers & probes but that's because on the inside they're separated into upper and lower cabinets. Annoying because they're also the hardest to perform alarm activations on.

[Cliff]

That's how we have it set up.

 

Our -80 to -40 freezers are the only exception with two thermometers & probes but that's because on the inside they're separated into upper and lower cabinets. Annoying because they're also the hardest to perform alarm activations on.

 

Thanks, if I remember correctly most of our colder freezers have individual compartments inside, yet we only have on Rees probe.

[R1R2]

only 1 thermometer in each device.