Hardware Diagnosis; Checking The Led And The Cover Sensor; Checking Temperature Control Of The Cooling Platform - Agilent Technologies 3100 OFFGEL Fractionator User Manual

7 Troubleshooting
Troubleshooting the Instrument

Hardware Diagnosis

With the following few steps, you can verify if your instrument is performing
to its specifications. Note that a meaningful hardware diagnosis requires a
fully functional communication to the instrument.

Checking the LED and the cover sensor

1 Switch on or restart the instrument and watch the Status LED during
The Status LED must show all three LED colors for approximately one second
during startup in the following order: yellow-green-red.
If this is not the case, a LED is broken and needs repair. Call Agilent
Technologies for further help. Otherwise, proceed with step 2.
2 Set the cooling platform temperature to 20 °C and wait until the cooling
3 Open the top cover.
The LED must turn yellow. The interface must show Cover Open in the status
bar. This confirms that the cover sensor is working properly. A failed cover
sensor would be recognized by the instrument and result in an error, see
Table

Checking Temperature Control of the Cooling Platform

For this test, the ambient temperature must be within specification (maximum 30°C if the
N O T E
cooling platform is set to 20 °C) and conditions should be non-condensing.
1 Set the cooling platform temperature to 20 °C and wait until the cooling
2 Set the cooling platform temperature to 30 °C and measure the time until
The temperature ramp up should not take longer than 5 minutes.
3 Set the cooling platform temperature back to 20 °C and measure the time
The temperature ramp down should not take longer than 15 minutes.
96
startup.
platform temperature is reached and the LED is turned off.
on page 94.
platform temperature is reached and the LED is turned off.
the LED is turned off.
until the LED is turned off.
OFFGEL User Manual