Biotage ELSD-A120 - Clearing an Error; Error Conditions

30 Biotage
®
ELSD-A120 User Manual
4 Using the Detector
Detector Controls
When the detector is switched from RUN mode to STANDBY mode,
following a command or error, then the gas management system is
invoked and the gas flow set to a minimum flow of 1.2 SLM for 15 min
before the gas manifold valve is closed. This minimum “blanket” gas is
enough to nebulize and evacuate solvent should the detector default
to STANDBY mode with solvent still flowing.
RUN
The RUN mode is the detector’s operational mode. In this mode the
detector is controlled at the set temperatures and gas flow, and the
detector is fully operational. During heating, the detector will display
NOT READY to show that the detector has not reached the set
conditions. When the detector has equilibrated, READY will be
displayed and the detector is ready for use.
Error Conditions
ELSD-A120 is equipped with a number of sensors and error checking
facilities to ensure safe operation. If an error is detected, the detector
gives an audible warning and a visible description of the error
condition. In event of any error condition, the detector defaults into
the STANDBY mode in which the heaters, light source and gas are
turned off. A complete list of detector errors and remedial actions are
given in the troubleshooting section of this manual.
Clearing an Error
Once the source of the problem has been corrected, select RUN mode
to put the detector back into its operational state. If the problem has
not been rectified, the detector will repeatedly error when RUN mode
is selected.
CAUTION
Flooding the detector
If the detector is left in Standby mode for longer than 15 minutes,
the gas flow to the detector is stopped to minimize gas usage.
 The Isolera system shall not be used if the detector is going to
be left in Standby mode longer than 15 minutes to prevent
solvent flooding the detector.
CAUTION
Solvent flooding the detector
 It is strongly recommended that the Isolera system is not left
unattended longer than 15 minutes when processing to prevent
solvent flooding ELSD-A120 should an error occur.