Computers reading differently.

[Frosty]

hey folks I understand why different manufacturers have different setups and safe dive profiles in computers.
But could someone explain to me why two computers on the same wrist of a diver would give two different DEPTH readings. The difference was only 1.0m (3 feet) at 15m but it did raise the question of the accuracy of the other information displayed.

 

[Jorgy]

1 meter difference seems very high, but could be explained by differences in tolerance of the depth sensor - if one sensor is at the high end of the range and the other at the low end of range - the difference between them can be large. For fun grab a bunch of regs and put them on your tank and note the range of pressure shown - it can be 100's of PSI from highest to lowest......

Such is the accuracy of gauges we use.......

M

 

[scubafanatic]

perhaps you just have a REALLY big wrist ?

 

[gsk3]

Was one set to fresh water and the other to salt?

 

[GrumpyOldGuy]

My computers read up to 2ft different when on the same wrist, 2 are same model, all 3 same mfg. I attribute it to the mfg tolerance of the depth sensors and rounding.

 

[TexasKaren68]

My computer told me my recent deep dive was 63 degrees. My instructor's said it was 50 degrees. Based on the lack of feeling in my fingers I believe my instructor's computer.

 

[fisheater]

We always use the lowest temperature from anyone's computer.

Sent from my iPhone using Tapatalk

 

[iamafish]

Recently with a both a Suunto Zoop and D4 on the same wrist slightly below 10 meters, one said I had a 3 meter / 4 minute deco obligation, and the other said I has 30+ minutes of NDL left.

Then as soon as I moved above 10 meters, the computers with the 4 minute / 3 meter ceiling deco obligation showed over 30 minutes NDL.

I have seen this issue with Suunto around the 10 meter threshold a number of times, which leads me to believe there is a flaw in their algorithm at the 10 meter transition level.