SpectraPure
SpectraPure®Inc.
480.894.5437 Call us toll-free 1.800.685.2783
215 South Industrial Drive, Suite 2A Tempe, Arizona 85281-2941
®
8
Diagnostics &
System Maintenance
Deionization Cartridges #3 and #4 Diagnostic
The third and fourth stages are dual layer cation/anion cartridges, or in
some cases a mixed bed DI. The condition of these cartridges should be
judged by observing either a RED or GREEN light indication from the moni-
tor. Please note that the probe is located between stages #3 and #4. Thus,
the monitor indicates the condition of the third stage cartridge, only.
Turn the on the system and allow water to flow past the monitor probe
for at least 20 minutes before attempting to use the monitor. The monitor
will indicate GREEN when the cartridge is in good condition and RED if it is
exhausted and in need of replacement. (Be sure that switch #7 is in the ON
position and all other switches are OFF.)
Replace the third stage cartridge
immediately
if the RED light is on.
Note: In addition to the monitor indicating the DI cartridge condition, the
resin will also change color. Note that only the DI-AR-CI-10 cartridge is color
indicating, not the lab grade mixed bed cartridge that is sometimes used.
The DI-AR-CI-10 cartridge’s violet-colored layer is the resin layer used to indi-
cate exhaustion and will change to an orange color when exhausted. The
standard cartridge will change color from bottom to top while the “down-
flow” version will change from top to bottom.
The color change that occurs in this stage gives a general indication of
its condition but the monitor will provide the most accurate diagnosis of
its condition. There may be local conditions that affect the color-changing
characteristics of these DI cartridges. High pH water may prevent these car-
tridges from changing colors.
Deionization Cartridges #3 and #4 Replacement
Materials Needed:
One DI-AR-CI-10 Deionizaton cartridge, filter wrench.
Procedure:
1. Remove the filter housing from Stage #3 by unscrewing it counter
clockwise as viewed from the bottom.
2. Remove and discard the old cartridge from the housing.
3. Remove the housing and cartridge from Stage #4 and re-install the
cartridge in Stage #3 Make sure the cartridge is installed in the correct
direction as marked on the filter housing and that the
top seal
is
securely attached to the top of the cartridge.
SpectraPure
®
SpectraPure®Inc
.
Fax 480.894.6109 Fax us toll-free 1.877.527.7873
E-mail: [email protected] Visit us on the web www.spectrapure.com
5
Installing the Water Purity Monitor
1. Remove front cover from the monitor and connect the supplied
9-volt battery to the snap terminals located on the circuit board.
Support the battery terminals with your finger while inserting the
battery. For proper operation use only an ALKALINE type battery.
2. Insert the plug from the test probe cable into the socket on the
monitor
box.
3. Locate switch #7 on the selector switch. Slide (or push-in) the
switch to the ON position. Ensure that all remaining switches are
in the OFF position. This is the recommended setting to determine
the condition of DI cartridges.
4. Replace the front cover and fasten with the included screw. Locate
monitor at an easily accessible location within 3 feet of the test
probe. Attach by peeling the protective cover from the self-adhesive
velcro tape and pressing onto the mounting surface.
5. Locate the 8-position “dip switch”. Each of the internal settings
corresponds to a specific electrical conductivity level measured in
micro-siemens (uS). The equivalent “natural water” TDS setting in
ppm is shown below.
System Start-Up
Switch
Number 1 2 3 4 5 6 7 8
Setting in uS
100 50
20
10 5
2
1
0.5
Setting in ppm
67
33
13
6.7 3.3
1.3 0.67 0.33
Fig. C: Purity Monitor Switches
Switch #7
Shown in “ON”
Position
* If settings are changed for any reason (such as testing the quality of
RO membrane), it should be returned to the original #7 setting after
completion of the test.
