SpectraPure
SpectraPure®Inc.
480.894.5437 Call us toll-free 1.800.685.2783
2167 East Fifth St, Tempe, Arizona 85281
®
8
INSTALLING THE WATER PURITY MONITOR
1.
Remove front cover from the monitor and connect the supplied 9-volt batery to the
snap terminals located on the circuit board (Fig. C). 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 jack on the monitor box.
3.
Locate the 8-position “dip switch” (Fig. B). 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.
4.
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 the #2 cartridge.
5.
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.
Fig. A: System Components
TFC RO Membrane
(TFC-XX)
.5 micron
MicroTec™
Sediment
Pre-Filter
(SF-MT-.5-
10)
.5 micron
Carbon
Block Pre-
Filter (CF-.5-
10)
Pressure
Guage
Purity Monitor
DI
Cartridge
#1
DI-SFCC-10
DI
Cartridge #2
DI-AR-DI-10
SpectraPure®Inc
.
Fax 480.894.6109 Fax us toll-free 1.877.527.7873
E-mail: spectra@spectrapure.com Visit us on the web www.spectrapure.com
21
SpectraPure
®
TROUBLESHOOTING GUIDE FOR RO/DI SYSTEMS
1. Low production rate:
a.
plugged
pre-filters.
i.
Replace
pre-filters.
b. low water temperature.
ii. Heat feed water OR use higher GPD membrane.
c.
low
line
pressure.
iii. Use booster pump OR use higher GPD membrane.
d.
high
TDS
content.
iv. Use booster pump OR use higher GPD membrane.
e. fouled membrane.
v. Clean or replace membrane to restore flux.
f. plugged flow restrictor.
vi. Replace flow restrictor & membrane.
2. Zero production rate:
a. Missing flow restrictor.
i. Put flow restrictor in the yellow line.
b. Dried membrane.
ii. Try to restore flux using rubbing alcohol OR
replace
membrane.
c. Plugged flow restrictor.
iii. Replace flow restrictor and clean/replace
membrane.
3. Extremely high production rate:
a. Ruptured membrane.
i. Replace it.
b. Very high line pressure (> 90 psi).
ii. Use a pressure reducing valve.
4. Red light on purity monitor comes on:
a. Exhausted deionization cartridge.
i. Replace cartridge.
b. Bad membrane & exhausted cartridge. ii. Replace membrane & deionization cartridge.
c.
Faulty
monitor/probe.
iii.
Replace
monitor/probe.
5. Pressure gauge does not register anything:
a. Missing flow restrictor.
i. Put flow restrictor in the yellow line.
b. Pressure gauge screwed in too far.
ii. Unscrew pressure gauge one turn and retest.
c. Plugged pressure gauge orifice.
iii. Clean orifice with a needle.
d. Defective pressure gauge.
iv. Replace it.
6. Low deionization cartridge life:
a.
Defective
membrane.
i.
Replace
it.
b. Low pressure (< 40 psi).
ii. Use booster pump.
c. High CO2 levels in water (> 5 ppm).
iii. Aerate RO product water or use a straight
anion cartridge ahead of DI cartridge.
d. High TDS in feed water (> 1000 ppm). iv. NO EASY SOLUTION.
e. High levels of silica, nitrates,
v. Use straight anion cartridge ahead of mixed
phosphates etc. in tap water.
bed cartridge.
f. High pH tap water (> 9.0).
vi. Acidify feed water to the RO membrane
to
improve
its
rejection.
