3 - 4
(1) Operation Keys
Each key on the UI pad (option) type operation panel is
explained here.
PUMP
ON/OFF
Starts/stops operation of the pump. Pressing this key
starts the pump.
Then, pressing it again stops the pump.
PURGE
Starts/stops purging the flow path.
For specifying a purging flow rate, use the UTILITY
function.
The upper pressure limit (PRESS MAX) is set at 2.9
MPa (30 kgf/cm
2
), and the lower pressure limit
(PRESS MIN) is set at 0 MPa (0 kgf/cm
2
).
Pressing this key again stops the purging operation.
UTLTY
/
SET UP
1.Used to display/set up auxiliary function conditions
(UTILITY).
•
Pressure zero-point correction
•
Purge flow rate setting
•
Pressure unit assignment
2.For pump mode selection.
The low-pressure gradient mode, high-pressure
gradient mode, and single-liquid feed mode are
available (SET UP).
GLP
Used for confidence-level reporting.
PROG
Selects, generates, edits, or deletes a pump program.
,
Scroll up and down display.
START
Starts the time program. You can activate the start key
only when the pump is at the initial mode.
STOP
Stops the time program.
MANUAL
Used for manual operation selection display and
setting (mobile phase mixing ratio, FLOW, P-MAX, P-
MIN, %B, %C, %D).
ESC
/
LOCK
OFF
1. Pressing this key brings you from the numeric value
input state (input state in each mode) back to the
MONITOR screen.
2. For key unlocking.
A,B,C,D
If you are in manual status and you press the [A]
key %A is set immediately to 100. [B], [C], and [D]
keys provide the same function.
INITIAL
Puts the systems to the initial setting of program
whose no. is selected by [PROG] key (time program: 0
minutes)
PROG
GLP
UTLTY
1
2
3
CL
ENT
4
5
6
DEL
7
8
9
0
ESC
SET UP
INSERT INITIAL
LOCK OFF
PUMP
PURGE
START
STOP
MANUAL
A B C D
3.1.2 Part Name and
Function of UI
Pad (option)
