YSI 30, Руководство по эксплуатации

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YSI, Incorporated Model 30/30M 27
SECTION 9 TROUBLESHOOTING
The following is a list of error codes for the Model 30 and Model 30M. The Model 30M also has
additional error codes (see the following page).
SYMPTOM POSSIBLE CAUSE ACTION
1. Instrument will not turn on A. Low battery voltage
B. Batteries installed wrong
C. Meter requires service
A. Replace batteries
B. Check battery polarity.
C. Return system for service
2. Instrument will not calibrate A. Incorrect calibration procedure
B. Cell needs cleaning
C. Instrument requires Service
A. See section 5 Calibration
B. See section 8 Maintenance
C. Return system for service
3. Instrument "locks up" A. Instrument has received a shock
B. Batteries are low or damaged
C. System requires service
A. Remove battery lid, wait 15 seconds
for reset, replace lid.
B. Replace batteries
C. Return system for service
4. Instrument readings are inaccurate D. Calibration is required
E. Cell is contaminated
F. Temperature coefficient has been
set incorrectly
G. Reference temperature incorrect
H. Readings are or are not temperature
compensated.
D. See section 5 Calibration
E. See section 8 Maintenance
F. See section 6 Advanced Setup
G. See section 6 Advanced Setup
H. See section 3 Making
Measurements
5. LCD displays "LO BAT" A. Batteries are low or damaged A. Replace batteries
6. Main Display reads “OVEr” I. Conductivity Reading is >200 mS
J. Temp. Reading is > 95
o
C
K. Temp. Reading is <-5
o
C
L. Salinity reading is > 80 ppt
M. During calibration, calculated cell
constant is >K=5.25
I. In all cases, check calibration
values and procedure; check
Advanced Setup settings.
J. If each of these is set correctly,
return system for service.
7. Main Display reads “Undr” A. During calibration, calculated cell
constant is <K=4.9
A. Recalibrate instrument using known
good conductivity standard
B. Follow cell cleaning procedure see
section 8 Maintenance.
8. Main Display reads “rErr” N. User has selected manual ranging &
sample exceeds selected range K. Use the mode key to select a higher
or lower manual range, or to set
system to Autoranging.
9. Main Display reads “PErr” O. Incorrect sequence of key strokes A. Refer to manual section which
provides step by step procedures
for the function you are attempting.