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Hach BioTector B7000i - Page 69

Hach BioTector B7000i
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Page 69
Connect the Acid (1.8N Sulfuric Acid, H
2
SO
4
, containing 80 mg/l Manganese catalyst) and Base
(1.2N Sodium Hydroxide, NaOH) containers to the BioTector’s ACID and BASE ports with ¼” PFA
tube. 20 or 25 liter containers are recommended. Confirm that weight fittings supplied are installed
at the end of the acid and base reagent dip tubes.
_____
Confirm the sample or samples are supplied to the analyzer and are at ambient pressure. See
examples in figure 16 in Section 5.4.1 Sample Inlet Tube Position for the correct positioning of
the BioTector sample tube in various sampling systems.
If a sample is under pressure, then the system must be designed to isolate the sample in the
event of a tube leak within the BioTector, for example a system consisting of a liquid leak detector
and automatic isolation valve (which must be located outside the BioTector) must be installed.
Note that the maximum allowed sample pressure is 500mbar.
_____
Referring to typical examples in figure 16 in Section 5.4.1 Sample Inlet Tube Position,
connect the sample or samples to the BioTector with ¼” PFA tube. These ports are marked
SAMPLE 1, SAMPLE 2, , SAMPLE 6.
_____
If a BioTector SAMPLER has been supplied with the system, connect the sampler in accordance
with the drawings and instructions in the sampler manual.
_____
Connect the PVC-U Drain Pipe (installed outside the BioTector) to a well ventilated pressure free
drain using the supplied 1 inch braided hose. See figure 17 in Section 5.4.2 Drain, Bypass
and Exhaust Connections for details.
_____
Confirm that the SAMPLE OUT port is connected to a well ventilated pressure free drain with ¼”
PFA tube. The tube should be fitted so that it cannot freeze in cold weather. See figure 17 in
Section 5.4.2 Drain, Bypass and Exhaust Connections for details.
_____
Confirm the sample BYPASS port is connected to the PVC-U Drain Pipe. If the PVC-U Drain Pipe
is not used, connect the sample BYPASS port with ¼” PFA tube to a large diameter tube, as
shown in drawing 81104041. The end of the sample bypass tube should be level with the center of
the Sample (ARS) Valve. The large diameter tube should be connected to a pressure free drain.
The end of the sample bypass line should not be under the surface of the water in the drain at any
time. The tube should be fitted so that it cannot freeze in cold weather. See figure 17 in Section
5.4.2 Drain, Bypass and Exhaust Connections for details.
_____
If fitted, connect ¼” PFA tube to the MANUAL or CALIBRATION ports. Remove all tapes placed
around the fittings for shipment.
_____
If the BioTector is supplied as a “purge ready system (i.e. if the BioTector is supplied without any fan and
vent ports), connect the -20°C dew point, oil, water and dust free purge air to the BioTector. The
purge air is instrument air which is typically at 100 L/min flow, and filtered with a 40 microns or
smaller filter. Drill and connect the air inlet port to the top left hand side of the upper enclosure.
Drill and install an air outlet port vent” to the bottom left hand side of the lower enclosure.
_____
2. POWER UP:
Power up the analyzer. Go to Operation, Time & Date menu and adjust the time and the date.
_____
Using the Simulate menu (see Section 8.1.2 Simulate), check the following:
Confirm that the Exhaust, Sample Out and TOC Acid Valves are working.
_____
Confirm that the Sample (ARS) Valve is working.
_____
If installed, confirm that all other valves (e.g. multi-stream valve) are working.
_____

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