OM0232
|
Rev 7 July/2017
Page 38 of 56
NuAire, Inc.
|
2100 Fernbrook Lane
|
Plymouth, MN 55447
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U.S.A
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ph: 763.553.1270
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fx: 763.553.0459
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tf: 800.328.3352
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www.nuaire.com
07
MICROCONTACT
NOT SEEN – CLOSED
The power contactor doesn’t work.
The open position switch was released after the
lid closed.
The micro contact doesn’t receive a command.
The coil of the micro contactor is not working
properly.
The micro contact was seen as open when it
should have been seen as closed.
Contact a Certified Technician.
Error / Message
Cause
Solution
08
ERROR LID SAFETY
The board with tachometer / accelerometer is
working improperly.
The connection to these parts is not good.
The sensor for the closed lid position was released
after the centrifugation started.
The lid slightly opened during the security auto
test when the cycle started.
09
NO SPEED SIGNAL
AT START
The speed sensor is working improperly.
The board with tachometer / accelerometer is
working improperly.
The connection to these parts is not good.
The speed cannot be read within the first 5s of
the cycle.
10
SPEED SIGNAL LOST
The speed sensor is working improperly.
The board with tachometer / accelerometer is
working improperly.
The connection to these parts is not good.
The speed signal was lost during rotation.
11
WRONG SPEED
SIGNAL
The speed sensor is not working properly.
The board with tachometer / accelerometer is
working improperly.
The connection to these parts is not good.
Magnets from the tachometer might have been
lost.
The speed signal is not correct.
12
OVERSPEED
Major error, the centrifuge will stop.
The speed measured is higher than the maximum
speed allowed for this rotor.
Contact a Certified Technician.
13
Bus I²C
Accelerometer
The board with tachometer / accelerometer is
working improperly.
The connection to these parts is not good.
The microcontroller board is working improperly.
Problem of communication with the
accelerometer.
14
Bus I²C Temperature
probe
The microcontroller board is working improperly.
Problem of communication with the temperature
measurement.
15
LID OPEN DURING
ROTATION
Manual lid opening during centrifugation.
Wrong calibration of locking mechanism.
The lid was manually opened or the hook was
released during the centrifugation.
Contact a Certified Technician.
NO DISPLAY
No power.
Verify the power plug is connected properly.
Check the power in the laboratory.
Turn the switch on.
16
TEMPERATURE
CONTROL ISSUE
Temperature probe out of service.
Verify that the temperature probe is properly
installed under the lid and replace it if necessary.
Remove the probe and measure the resistance.
The value must be 500+ - 100 Ohm (Probe PT500)
17
ERROR OVERSPEED
SAFETY
The startup test of the overspeed safety has
failed.
Microcontrol board is defaulting: Replace the
control center.
In case of malfunction, contact after-sales service if the previous table does not eliminate the error.
You will be asked for the type of centrifuge and the serial number for more effective troubleshooting.
Never try to disassemble or fix the unit on your own: the risks of getting injured or electrocuted are high. The manufacturer
warranty would then be void. Only a certified technician is authorized to perform such operations.
