What does it mean if only dashes (-----) are displayed on 5500sc Silica screen?

Document ID

Document ID TE2356

Published Date

Published Date 27/05/2017
Question
What does it mean if only dashes (-----) are displayed on 5500sc Silica screen?
Summary
5500sc Silica and dashes on display
Answer
Dashes mean it is reading under range. Make sure the amino acid was added to reagent 3. If this doesn't get added no color change will occur and users will get "-----" for the readings.