19
8. Error messages
Display
Caused by
Action
- Measurement of D.O. or temperature out of range.
- In calibration:
- Standard 0%: limits <0 nA and >2nA
- Standard 100%: limits <30 nA and >110 nA
Check standards.
Check sensor.
Low battery charge.
Replace the batteries.
E1
Unstable reading during a stability measurement or
during calibration.
180-second timeout.
Check sensor.
Check polarisation.
Check flow.
E2
Exceeded upper limit of sensor current during
measurement
≥
250 nA
Check sensor.
ENGLISH
DO 6_HACH_0710.indd ANG:19
DO 6_HACH_0710.indd ANG:19
14/9/10 10:51:24
14/9/10 10:51:24
