20
Air Velocity
E03
– Velocity over range. If the error persists within range return to
Sper Scientific for repair.
E04
– Air velocity error. Return to Sper Scientific for repair.
CO2
E03
– Temperature over range. Place the meter in room
temperature for 10 minutes. If the error persists recalibrate.
If the error still persists return to Sper Scientific for repair.
E01/E33
– Volatge too low or CO2 module error. Check the low
battery icon and replace if necessary. Recalibrate and if the
error persists return to Sper Scientific for repair.
Other Error Codes
E32
– Memory IC error. Turn the meter off and on again. If the
error persists return to Sper Scientific for repair.
Low Battery
When the battery voltage falls below the required range
appears on the LCD. Replace with new batteries to ensure
accurate measurements.
