I really don't know what the problem could be . I have never had an error show , many members use the Relion and have never had a problem
.Try testing it on yourself and let me know what happens
Maybe you are using too much blood
Applying the Blood Sample:
- Apply Sample:
After the symbol appears on the screen, apply the blood sample to the narrow end of the test strip until the meter beeps.
- Monitor Beep:
If the confirmation window is not filled in time due to insufficient blood volume or abnormally high viscosity, an "Er4" message may appear.
Just a suggestion when you start a new post why don't you put the
Date Milah AMPS # and any additional tests after that. You can continue with the PMPS in the title and any additional tests after that.
Start a new post everyday and link the previous days post.
To add the additional tests tap on the word Thread Tools that is to the right then tap on Edit Title add the tests and tap save
Post on the Prozinc like you have been doing
From what I read on our group
The Alpha Trak is calibrated a little bit differently and tends to read higher than a human