Read Di Water Reference Test - Hach BioTector B7000 User Manual

Read DI Water Reference Test

R E A D D I W R E F
1 < * S T A R T T E S T
2 S T O P T E S T
T I M E
P H A S E
X E N O N L A M P
N S I G
N R E F
S / R R A T I O
W A I T F O R
The purpose of Read DI Water Reference Test is to simulate and test the reference reading cycle on DI
Water and to display the intensity readings at both signal (SIG) wavelength, which is at 217nm, and reference
(REF) wavelength, which is at 265nm for Nitrogen.
The test starts with cell purge. DI Water is brought to the TN measuring cell and measured in the Dual Cell
Photometer (DCP) module. The Nitrogen Signal (N SIG) and Nitrogen Reference (N REF) values are updated
as soon as the readings are available. The Signal and Reference Ratios (S/R Ratio) are displayed for
Nitrogen. The % intensity values, which are calculated from the current readings and the readings obtained in
factory, are also displayed. The % signal and reference intensity values should be within the fault threshold,
which is typically greater than 50% and less than 150%. The % intensity values greater than 50% indicate that
the DI Water, the TN measuring cell and all corresponding lines are clean. The test measurement is carried
out the same way it is carried out in a normal reaction. When DI Water measurement is finished, the system
completes the test by purging the TN measuring cell.
1. Start Test. This function starts the Read DI Water Reference test.
2. Stop Test. This function stops the Read DI Water Reference test.
When escape key is pressed during the test, only STOP TEST is activated. The user can leave this menu
only when the test is stopped and escape key is pressed.
T E S T 0 9 : 1 7 : 2 8
1 6 s
D I W
O F F
2 7 0
3 4 0
1 . 0 0
T E S T P H A S E
1 2 - 0 9 - 0 2
M E A S U R E
O N
3 4 0 0 0 0
3 3 0 0 0 0
T O C O M P L E T E
8 5 %
7 5 %
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