Version 2.0
11
6_26931B ELS2100_2100 Ice Se rvice Manual_vsn2.0_maste r.doc
OVERVIEW OF DETECTOR’S OPERATION MODES
The PL-ELS 2100/2100 Ice can be operated in two modes; STANDBY and RUN, described
below:
To display the current mode and/or select a new mode, highlight the
MODE
function on the
instrument display. The current mode will now be displayed on the screen. Using the
keys, scroll up or down until the desired option is displayed. The instrument acknowledges the
command by displaying the mode of operation in the top right hand corner of the screen.
Standby Mode
The STANDBY mode is the “ground state” of the PL-ELS 2100/2100 Ice instrument, which is
initiated automatically after power on. In this mode of operation the heaters are off, and the gas
manifold valve is closed. The STANDBY mode enables the user to set-up the operational
parameters (gas flow, nebuliser and evaporator temperatures) before switching the unit into RUN
mode. The instrument will default to STANDBY mode should an error occur on the instrument
When the instrument is switched from RUN mode to STANDBY mode, following a command or
error then the gas flow is set to a minimum flow of 1.2SLM for 15minutes before the gas
manifold valve is closed. This minimum “blanket” gas is enough to nebulise and evacuate
solvent should the instrument default to STANDBY mode with solvent still flowing
[firmware
1.1.8 or later]
.
If the Instrument is left in STANDBY mode for longer than 15mintes,
gas flow to the unit is stopped to minimize gas usage.
It is strongly recommend that the pump stop from the I/O connector of
the PL-ELS 2100/2100 Ice is connected to the HPLC pump to prevent
solvent flooding of the detector should an error occur
Run Mode
The RUN mode is the detector’s normal operational mode. In this mode, the instrument
controlled at the set temperatures and gas flow, and the system is fully operational. During
heating or cooling the instrument will display ‘NOT READY’ to show the system has not
reached the set conditions. When the instrument has reached the set conditions and equilibrated,
‘READY’ will be displayed and the instrument is ready for use.
USING THE INSTRUMENT IN ‘NOT READ Y’ STATUS MAY NOT
PRODUCE CONSISTENT R ESULTS ACCORDING TO THE SET
PARAMETERS, AS THE SYSTEM IS NOT EQUILIBRATED.
