23
MAINTAINED CONTACT
This is the default type of signal that is continuous or level related.
There is continuous continuity between the contacts, like a short.
When this option is selected the REMOTE CONTACT CLOSURE
must remain closed during the entire sample program. If the
REMOTE CONTACT CLOSURE should open during the program; the
program will stop after taking the next scheduled sample.
PULSED CONTACT
This type of signal is not continuous. It goes on and off and
the system is able to count the number of pulses or signals to
perform various functions.
Select the appropriate type of contact using the arrow keys
and press ENTER. The display will return you to:
Use the down arrow key to navigate and select SAMPLE
VOLUME and press ENTER. The display will change to read:
SAMPLE VOLUME
Allows the operator to enter the desired sample volume.
Volume units that were selected in the GLOBAL SETTINGS
menu option is what will appear. If you selected gallons, then
GAL (representing gallons) will appear on the display screen.
The minimum sample volume that can be taken will vary with
tubing size. Trying to pump a 1 mL sample with L/S
®
24 size
tubing is not practical. Use smaller tubing for pumping
smaller sample volumes. See the SPECIFICATION section for
the minimum volume required for calibration accuracy.
HINT: If you will be taking small sample volumes such as 100
mL and or require high lifts greater than 12 feet than you
should consider using L/S
®
15 size tubing. This will improve
the performance and accuracy of the sample volume taken.
Enter the desired sample volume and press ENTER. The
display will return you to:
Use the down arrow key to navigate and select NUMBER OF
SAMPLES and press ENTER. The display will change to read:
NUMBER OF SAMPLES
Allows the operator to set the number of samples to be
taken. Select NUMBER OF SAMPLES and press ENTER.
The display will change to read:
HINT: If the number of samples times the sample volume
exceeds the reservoir capacity you will receive an error
message asking you to decrease one or the other when you
try to save the program. You must correct the problem before
you can save the program.
After entering the NUMBER OF SAMPLES press the enter
key. The display will return you to:
Use the down arrow key to navigate and select TIME
BETWEEN SAMPLES and press ENTER.
g
MAINTAINED CONTACT
c
PULSE CONTACT
g
PROGRAM START
c
SAMPLE VOLUME
SAMPLE VOLUME
500 ML (1-9000)
c
PROGRAM START
g
SAMPLE VOLUME
c
SAMPLE VOLUME
g
NUMBER OF SAMPLES
NUMBER OF SAMPLES
XX (1-99)
c
SAMPLE VOLUME
g
NUMBER OF SAMPLES
c
NUMBER OF SAMPLES
g
TIME BETWEEN SAMPLES
