25
CHEMPURE MANUAL
SECTION 9
ACCESSORIES
7. If installing RS-232C and Printer option, connect
large ribbon connector to multi-stream board.
8. If installing Relay Output option, connect small rib-
bon connector to multi-stream board.
See Figure
9-2
.
9. Carefully close door (be careful not to crush any
cables) and secure keypad panel with thumb-
screws.
9.3.2 MULTI-STREAM SOLENOID VALVES
Additional solenoid valves are supplied to control the
flow of sample to the analyzer. Each valve allows the
flow of one sample stream. The valves are mounted on
a panel which mounts in the reagent cabinet.
Install the solenoid valve panel as follows:
1. Remove reagent cabinet door.
2. Remove top bolt on each hinge.
3. Punch out hole plugs for number of valves on the
panel, starting with the top hole.
4. Place valve panel so that it lines up with bolt holes
on the door hinges, re-insert hinge bolts to secure
valve panel. (Valves should facing you.)
5. Connect the tubing line from the common port of
the #1 valve on the panel to the NO port of sole-
noid valve #1 in the reagent cabinet (on left).
Replacing the existing sample feed, if any.
6. Insert multi-stream valve panel positive fit electrical
connector into receptacle in upper left corner of
reagent cabinet.
If desired, a wash solution of deionized water may be
pumped through the analyzer at the beginning of each
cycle. To connect wash solution:
1. Insert a tubing line into the NO port of the last (bot-
tom) valve on the panel.
2. Place the other end of line in the bottle of wash
solution.
3. Set wash solution bottle in reagent cabinet.
9.3.2.1 Overflow Sampler Assembly
Multi-stream analysis requires an overflow sampler
assembly which will accommodate the extra sample
streams. Each multi-stream overflow assembly accom-
modates up to 3 sample streams, for 4-6 sample
streams use two multi-stream overflow assemblies. (A
bank of single overflow samplers can be used if
desired.)
Replace the single stream overflow sampler assembly
panel with the multi-stream as follows:
1. Disassemble tubing from existing single overflow
sample assembly (if necessary).
2. Remove 4 bolts holding panel onto outside of
reagent cabinet, set aside single stream overflow
sampler assembly.
3. Install multi-stream overflow assembly onto left side
of of reagent cabinet using same bolts. (NOTE:
Older models may mount on right side.)
4. Connect sample tube from the top of each overflow
chamber to appropriate solenoid valve inlet fitting
on lift side of reagent cabinet.
5. Connect sample stream tubing (1/4" plastic or
steel) to regulating intake valves as follows.
a. Loosen nut and compression fitting from bottom
of each regulating intake valve.
b. Side nut and compression fitting over end of
each sample inlet tubing.
c. Place end of tubing into each regulating intake
valve and secure by firmly tightening nut.
7. Ensure that air vent and overflow tubing are in
waste drain.
9.3.3 SET-UP
The analyzer may be programmed to analyze each
stream for a different period of time as well as alarm val-
ues for each stream. To program and set-up the ana-
lyzer for multi-stream analysis, proceed as follows:
Display
Action
1. - - - - -
Press
set multi-stream
button.
2. 0000
The first digit displayed indicates the
valve stream to be programmed, and
the following three digits indicate the
time, in minutes, that valve will be
used.
The wash cycle is indicated as stream
#0. Enter the desired wash time (0 to
999 minutes) by using /\ and \/ arrows,
then press enter. (To bypass wash
cycle just
enter
a time of
000
.)
3. 1015
Display indicates stream #1 and an
analysis time of 15 minutes.
Scroll in appropriate analysis time,
then press
enter
.
(If default time of 15 minutes is suit-
able, just press
enter
.)
4. 2015
Display indicates stream #2 for a time
of 15 minutes.
Change by scrolling or just press
enter
to retain default time.
Summary of Contents for 180-1300-01
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