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Hach BioTector B3500 User Manual

Hach BioTector B3500
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Page 17
2.1.1 Startup State
When the BioTector is powered up, its LCD screen will automatically display the Analysis Data screen after a
delay of 60 seconds.
By pressing the ESCAPE key the user moves from the Analysis Data screen to the Analysis Graph screen.
Pressing the ENTER key on the Analysis Graph screens brings the user back to the Analysis Data screen.
Pressing ENTER key on the Analysis Data screen will bring up the Select Level screen, from where the user
can select the desired menu level using the UP or DOWN and ENTER keys.
Entry to each menu level can be controlled by numerical passwords. If the passwords are not set, pressing
the enter key will bring the user directly to the sub menu screen of the selected level. If the system has been
set up with passwords, the Password menu will appear and the password must be entered before access to
the selected level is allowed.
In all cases, pressing the ESCAPE key will return the user to the previous screen.
2.1.2 System Status Messages
The system status messages are displayed on the top left hand side of the Analysis Data and Reagent Status
screens. On most other screens, only the screen name is displayed in this location.
System status messages are displayed in the following priority:
1. SYSTEM MAINTENANCE the BioTector is in Maintenance mode, activated by the maintenance
switch.
2. SYSTEM FAULT There is a fault on the BioTector. System is stopped.
3. SYSTEM WARNING There is a warning on the BioTector. System is running.
4. SYSTEM NOTE There is a notification on the BioTector. System is running.
5. SYSTEM CALIBRATION The BioTector is calibrating. This could be Span Calibration, Span Check,
Zero Calibration or Zero Check.
6. System operation status. This could be one of either:
SYSTEM RUNNING system is running.
SYSTEM STOPPED system has been stopped by a fault or from the keypad.
REMOTE STANDBY system has been put into standby mode remotely. System has stopped
analyzing.
The BioTector time and date is displayed on the top right side of each screen. When a
fault/warning/notification is logged in the system, a FAULT LOGGED message will alternate with the time/date
in this location until the fault/warning/notification has been corrected.
Changing most system settings are prevented when the BioTector is running.

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Hach BioTector B3500 Specifications

General IconGeneral
ParameterTOC, TN, COD
Operating Temperature5 - 40 °C
Weight25 kg
TechnologyUV-Persulfate Oxidation
Repeatability±1 % of reading or ± the detection limit, whichever is greater
Power Supply100-240 VAC, 50/60 Hz
Outputs4-20 mA
Dimensions600 mm x 450 mm x 300 mm
Sample TypeWater, wastewater
Method of AnalysisOxidation/UV Persulphate
Range TOC0 - 20, 000 ppm

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