Campbell Scientific CS110 Electric Field Meter - Manual (Page 50)

Appendix A. CS110 Measurement Status Codes
A-2
Status codes 11 through 16: Measurement warnings and errors.
status = 11, Leakage current exceeds compensation range of ± 4.2 nA.
Return measured Efield value.
status = 12 Failed charge-amplifier self check. Return NAN instead of
measured Efield value.
status = 13, Large closed shutter offset voltage. Vos > ⏐1.00 V⏐. Return
NAN instead of measured Efield value.
status = 14, Motor move error. Incorrect number of motor steps to close
shutter. Return NAN instead of measured Efield value.
status = 15, Motor move error. Encoder UPCNTs < 24 or > 26. Encoder
DNCNTs < 24 or > 26, or don’t find home when closing. Return NAN
instead of measured Efield value.
status = 16, Can’t properly position shutter. Return NAN instead of
measured Efield value.
Status code 11 returns the measured Efield value because the electric field
computation algorithm compensates for leakage current, even if it exceeds
±4.2
nA, although maximum signal amplitude becomes limited. Consequently,
cleaning of the instrument is recommended if status code 11 persists for
long periods of time.
Status codes 12 through 16 all cause the measured electric field to be set to
NAN in order to prevent the use of possible erroneous measurements. The
priority of codes 11 through 16 increases with increasing values, although
codes 8, 9 and 10 are higher priority.