Hach BioTector B7000i User Manual

Page 151
Section 10 Service and Maintenance
10.1 Weekly Maintenance
 Check the air supply pressure:
A) An existing instrument air supply line
B) BioTector Compressor
 Check and confirm that the air pressure is 1.5 bar on the filter pack pressure regulator.
 Check the Sulfuric Acid level in the acid reagent container. Check the Acid Pump and confirm that
there are no leaks. See figure 1 and table 2 in Section 4.1.1 Analysis Enclosure for the location
of Acid Pump inside the BioTector.
 Check the Sodium Hydroxide (base) level in the base reagent container. Check the Base Pump and
confirm that there are no leaks. See figure 1 and table 2 in Section 4.1.1 Analysis Enclosure for the
location of Base Pump inside the BioTector.
 Check the Mixer Reactor and confirm that there are no leaks. See figure 1 and table 2 in Section
4.1.1 Analysis Enclosure for the location of the Mixer Reactor inside the BioTector.
 If installed check the sampling system:
Option 1: Confirm that the BioTector Vacuum Sampler or BioTector Venturi Sampler is
operating.
Option 2: Confirm that the Sample Catch-Pot has sufficient sample flow, which guarantees a
fresh sample for each analysis cycle.
Option 3: Confirm that the Sample Pipe has sufficient sample flow, which guarantees a fresh
sample for each analysis cycle.
 Check the Sample Pump and confirm that there are no leaks. See figure 1 and table 2 in Section
4.1.1 Analysis Enclosure for the location of Sample Pump inside the BioTector. Observe Sample
Pump operation and sample delivery from the sample point and confirm that there are no blockages
inside sample lines.
 Check all valves inside the BioTector and confirm that there are no leaks. See figure 1 and table 2 in
Section 4.1.1 Analysis Enclosure for the location of the valves inside the BioTector.
 Check the filter mats in the Fan and Vent housings and confirm that they are not blocked.
 Check the Bypass, Sample Out and Exhaust lines outside the BioTector and confirm that there are no
damages and blockages. See figure 17 in Section 5.4.2 Drain, Bypass and Exhaust Connections for
details.

Hach BioTector B7000i Specifications

General

Brand	Hach
Model	BioTector B7000i
Category	Measuring Instruments
Language	English