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ECP2050
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Warnings
and
Errors
Description Reason / Solution
LIMIT WITHIN THE TIME! DATA WERE
ANNULLED.
Check the unit according to
instructions in chapter
10.
E45
LEARNING WAS INTERRUPTED BECAUSE
OF WORSENING! DATA WERE
ANNULLED.
Operating error. Pumping stops.
Check the unit according to
instructions in chapter
10.
E51
LEARNING WAS INTERRUPTED BECAUSE
NEW FLOW IS TOO LOW! DATA WERE
ANNULLED.
Operating error. Pumping stops.
Raise the flowrate to 0.5 ml/min.
6.3.2. Gradient Program
Note: Gradient program functions is available starting from firmware (FW) verzion 4.x .
Pump enable setting of 12 gradient programs directly in the unit. Programming offers a tool
for gradient concentration course control and controlling mobile phase flowrate in time. Further it is
possible to set e.g. high and low pressure limit, different options of program termination etc.
Mobile phase gradient concentration is changed linearly depending on time between steps.
Contrary to gradient concentration, flowrate change is proceeded immediately in time of given step.
Program enables also step change of concentration (see
6.3.4.3 ).
Attention: We do not recommend to control the gradient from the pump keyboard and
PC at the same time.
F
LOW
D
IARAM FOR
M
ENU
I
TEMS
C
ONTROL A
P
ROGRAM
S
ETUP