Fluorometer Calibration Screens - Nalco 3D TRASAR Series Installation And Operation Manual

Control Alarm
Settings Settings

4.10.3 Fluorometer Calibration Screens

Select Fluorometer and follow screen directions to perform calibration:
STEP 1
Close fluorometer inlet valve and turn 3-way fluorometer discharge valve to
sample position.
IMPORTANT: Bubbles trapped in fluorometer during injection can cause instru-
ment error. With the syringe
syringe against a solid object to move the bubbles to the needle end of the
syringe. Then, force the bubbles out by pushing a small amount of solution
through the needle end of the syringe.
STEP 2
Clean the fluorometer by injecting acid with a syringe into the flow cell. Fill the
syringe with 60 ml of dilute acid. 10% Sulfuric Acid
ommended. If iron fouling exists, use 1:1 HCl
Screw the syringe onto the fitting, inject the dilute acid at a slow , steady rate into
the flow cell, and allow it to stand for 2 minutes. Rinse well with water . Using the
flow cell brush (P/N 500-P2817.88), gently push the brush down through the
opening and scrub the full length of the flowswitch and fluorometer tube.
IMPORTANT: If using 1:1 HCl, do not leave the acid in the flow cell for more than
five minutes.
STEP 3
Following the screen prompts, use a second clean 60 ml syringe and slowly
flush the flow cell with 180 ml of blank solution. Then slowly inject another 180 ml
blank solution and allow it to remain in the flow cell by leaving the syringe at-
tached. Press Continue.
STEP 4
Following the screen prompts, use a third clean 60 ml syringe and slowly inject
the flow cell with 180 ml of calibration solution
to remain in the flow cell by leaving the syringe attached. Press Continue.
STEP 5
Successful calibration will be indicated and must be "accepted". Controller will
automatically re-boot after accepting calibration. T urn valves back to operating
positions.
!
Technical Help
(630) 305-CHEM
3D TRASAR
Menu
Network
Preferences
(P/N 500-P2147.88)
(P/N 460-S0726.75)
(P/N 460-S0940.75)
A failed calibration is most likely caused by insufficient flush-
ing, contaminated/incorrect standards, introduction of air
bubbles, excessive cell fouling, or a bad probe connection.
521-OM0108.88
Copyright © 2009 Nalco Company
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5500 - Installation & Operation Manual
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in a vertical position, tap the
(P/N 460-S0800.75) is rec-
for cleaning.
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