New Era NE-4000 Multi-Phaser Programmable Double Syringe User Manual

Page 26

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New Era Pump Systems Inc.

www.SyringePump.com

Model NE-4000 Multi-Phaser™

Publication #1200-01

21

09/05/14


8.3.9

‘LP:ST’: Define Starting Phase of Loop

Defines the start of a Program loop. For a full description of Program looping, see sec. 8.3.11,

‘LP:nn’:

8.3.10

‘LP:EN’: Define Continuous Loop End

Loops to the most recently executed, unpaired, ‘loop start’ Phase, or Phase 1 if none. This function

allows a section of the Program to be repeated continuously. For a full description of Program looping, see sec.
8.3.11, ‘LP:nn’: .

8.3.11

‘LP:nn’: Define Loop End and Loop Repetitions

nn

Repeats execution of the defined loop ‘nn’ times.

Loop starts and loop ends are uniquely paired during looping. When an unpaired ‘loop end’ function is executed,
it is paired with the most recent unpaired ‘loop start’ function executed (‘LP:ST’). If no unpaired ‘loop start’
function exists, Phase 1 is used as an implied unpaired ‘loop start’. This pairing defines the loop and the range of
Phase numbers between the paired loop functions defines the scope of the loop.

When a ‘loop end’ function is executed, Program operation continues with the ‘loop start’ function paired with the
loop end function. There are 2 ‘loop end’ functions: Loop continuous (‘LP:EN’) and Loop for a preset number of
iterations (‘LP:nn’), indicated by ‘nn’. Each time a paired ‘loop end’ function is executed, an iteration of the loop
is complete. With the ‘LP:nn’ function, after ‘nn’ number of loop iterations, the defined loop is complete and
Program execution continues with the next Program Phase after the ‘loop end’ function. The loop is then no longer
defined or paired.

While executing Phases within the scope of a defined loop, another ‘loop start’ and ‘loop end’ can be paired and
become a defined loop within the scope of the first loop, which is referred to as the outer loop. The new loop being
referred to as the inner loop. The pairing of a loop within a paired loop is referred to as nesting of loops, with each
loop being one nested layer for the duration of the loops pairing. Loops can be nested for a total of 3 layers deep.
Loops can only be nested within the scope of an outer loop.

8.3.12

'PS:nn': Pause Pumping

If ‘nn’ is non-zero, the Pumping Program will pause pumping (stops pumping) for ‘nn’ seconds. When executed,

the display will show

nn

, with ‘nn’ decrementing to indicate the number of seconds until the next

Program Phase is executed. After the pause interval, the next Program Phase will be executed.

To set a pause time in tenths of seconds, select the decimal point between the digits. To select the decimal point,
press and hold the right-most arrow key until the right-most digit scrolls to 9. After 9, the decimal point between

the 2 digits will toggle on and off

. Release the key when the decimal point is displayed, or cleared, as

required. Now enter the required pause time from 0.1 to 9.9 seconds. While executing a pause time set in tenths of
seconds, the display will only show '01' seconds during the pause.

For pauses longer than the ‘99’ second maximum pause for this function, put the pause function within a Program
loop. A Program section with the following functions in consecutive Phases:

[LP:ST] [LP:ST] [PS:60] [LP:60] [LP:24],

will pause the Pumping Program for 24 hours.

If ‘nn’ is ‘00’ then the Pumping Program pauses and waits for a start trigger to resume the Program. The display

will show

when waiting for a start trigger.

After the start trigger, the Program will resume with the next Phase. The start trigger can be from any source, the
‘Start’/’Stop’ key, the TTL I/O Operational Trigger, or from RS-232. Any other key input will stop and reset the
Pumping Program.

If alarms are enabled, the buzzer will beep continuously while waiting for the start trigger.

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