Cannon Instrument D155 Density Meter - Manual (Page 40)

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6. Troubleshooting
6-1. Error messages and remedies
When the main unit is operated improperly, the following error messages will appear with a
corresponding beep sound.
Error message Description Remedy
Time Over Measuring time exceeds 10 minutes.
Check the window to see if air
bubbles are trapped in the measuring
cell.
If this message persists while nothing
wrong is observed, Contact CANNON
or your local dealer.
6-2. Symptoms for error numbers and associated remedies
When a fault occurs within the D155 unit, the following warning number will appear with a beep sound.
Error
message
Description Remedies
2, 3, 4 The thermistor is defective (broken). • Contact CANNON or your local dealer.
5 The measuring cell is defective or the
wiring to the cell is damaged. • Contact CANNON or your local dealer.
6 Temperature is not stabilized in an
hour. After the following two steps are confirmed,
turn on the power again.
•
The ambient temperature for D155 is
5∼35°C. Check to see if the ambient
temperature does not exceed this range
during operations.
• Make sure that the air vents at the front,
rear, and bottom of unit are not clogged
with dust or blocked in any way. If the
error persists, Contact CANNON or your
local dealer.
7 The voltage level of the back-up
battery becomes low. This will
cause memory to be initialized and all
stored data/calibrations cleared. • Contact CANNON or your local dealer.
CANNON ® D155 Density Meter Instruction & Operation Manual
Version 1.1b – August 2014; CANNON® Instrument Company
2139 High Tech Road • State College, PA • 16803 • USA