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Section 4
4.1 Keypad and Key Functions
Button
ON
OFF
START PROGRAM
NEW PROGRAM
YES/ENTER
NO/PASS
CLEAR ENTRY
DISPLAY FEEDBACK
CHANGE/HALT
RESUME PROGRAM
BOTTLE ADVANCE
PUMP (Manual Mode)
PURGE (Manual Mode)
STOP PUMP (Manual Mode)
TAKE SAMPLE
TIME SET
TIME READ
* (asterisk)
8544operations.fm
Operation
Figure 8
shows the 18-position keypad and 24-character alphanumeric
display.
Function
Energizes Sampler
De-energizes sampler and halts program in progress
Initiates the sampling program and resets all counts to zero (including datalogger).
When the START PROGRAM button is pressed, all recorded data (program entries and
collected sample times/dates) are erased from memory. Always download recorded data
before pressing START PROGRAM.
Allows input of new sample program...programming choices appear on display.
Causes a positive response when a question appears on display; accepts new programmed
value or previously entered value.
Causes a negative response when a question appears on display; in standby state, the
software revision number is displayed.
Erases program value shown on display; when held for two seconds, permits enable/disable
of level actuation/auxiliary control.
Displays program status and a review of the program.
Stops sampler program and places in standby state. When started, press this key prior to
making any program change and before pressing keys 4, 5, 6, 7, 8, 9, and NEW PROGRAM.
Causes the program to continue from the point at which it is halted.
Feature not available with this model.
Pumps sample liquid (pump forward) when held. Pump stops when released.
Purges sample liquid (pump reverse) when held. Pump stops when released.
Stops pump when using PUMP LOCK (see *). When held for 3 seconds (with sampler in a
standby state), permits selection of other languages.
Initiates sample cycle independent of program.
Allows setting real time and date
Causes real time and date to appear on display. When held for 3 seconds, display indicated
time and date each sample was taken (or missed).
During programming, causes program to back-step. After CHANGE/HALT, allows altering of
bottle parameters (container volume, etc.). After CHANGE/HALT, provides review of
parameters (i.e. number of bottles, volume of bottle(s), line length, etc.). After PUMP/PURGE,
(manual mode) activates PUMP LOCK. Pump runs forward (KEY 5) or reverse (KEY 6)
without holding key. KEY 7 stops the pump.
Page 21
Operation
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