47
Problem Possible
Causes
Solutions
Cartridge pack is beyond
Check the expiration date. Cartridge packs
expiration date.
begin to lose capacity after being stored for 2
years from the date of manufacture. Replace
the cartridge pack with an unexpired one.
If Barnstead ROpure is the feed water
source, check that the membrane is function-
ing properly.
Short cartridge pack life.
If a Barnstead Still is the feed water source,
Poor quality feed water.
ensure that the distillate temperature to the
DIamond does not exceed 40°C (104°F).
If feed water is from a central water
purification system, verify water quality and
proper functioning of the system.
See “General Specifications.”
UV lamp not connected
Check to ensure lamp is connected properly.
The display periodically reads, properly.
“Check UV Bulb.”
UV lamp burned out.
Replace the UV lamp as described in “UV
Lamp Replacement.”
Air in system.
Dispense more water through the NANOpure
DIamond to purge air from the unit.
Check the connection of the cell as it attach-
Bad cell connection.
es to the meter circuit board mounted on the
inside. of the right door.
Purity display continuously
If you have a N.I.S.T. module, perform a
shows “OVERRANGE.”
N.I.S.T. calibration.
If you do not have a N.I.S.T. module, perform
the calibration function WITHOUT the
Incorrect N.I.S.T. calibration
calibration module, as if you had it. (Unplug
offset.
cell connection from J2 of PC1190X2 until
finished.) Answer “Yes” to the prompt. The
display will read “Calibration (failed),” but this
will clear any incorrect offset to zero.
Display reads,
0.2 micron filter clogged.
Replace final filter as indicated in “0.2
“Overpressure Error.”
Micron Filter Replacement.”
Solenoid failure.
Replace BK1190X2
T
ROUBLESHOOTING
Summary of Contents for NANOpure DIamond D11951
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