Hach BioTector B3500s, User Manual

Page: 70 / 166

Page 70
In BioTectors built with a vortex cooler, air should be supplied to the vortex cooler using a
regulator, which is dedicated for the vortex cooler only.
Connect the EXHAUST port with ¼” PFA tube to a safe and well ventilated area or to open
atmosphere. The tube must have no restrictions and it must be placed so that any condensation
and liquid
buildup in the tubing is prevented. The maximum length of ¼” PFA tubing installed in
Exhaust line is 10 meters. If tubing longer than 10 meters is required, the use of a larger ID tubing
or pipe is recommended.
The end of the exhaust tubing should have a slight downward slope and should be located in an
environment so that any condensation or liquid at the outlet of the tubing cannot freeze during
cold weather. See figure 16 in Section
5.4.2 Drain and Exhaust Connections for details.
_____
Remove the tapes, which are used to seal the ends of the supplied CO
2
filter. Fit the CO
2
filter to
the Base container and seal the Base container tightly. See figure 13 and figure 14 in Section
5.3.2 Reagent Connections for details.
_____
Connect the Acid (6.0 N Sulfuric Acid, H
2
SO
4
, containing 350 mg/l Manganese catalyst) and Base
(4.0 N Sodium Hydroxide, NaOH) containers to the BioTec
tor’s ACID and BASE ports with 1/8”
PFA tube. ~20 liter reagents last more than 6 months. Confirm that weight fittings (which contain
70 micron filters) supplied are installed at the end of the acid and base reagent dip tubes.
_____
Confirm the sample or samples are supplied to the analyzer from a sample chamber and are at
ambient pressure. See examples in figures 15 and 16 in Section
5.4 Sample, Drain and
Exhaust Connections for the correct positioning and setup of the BioTector sample tube in various
sampling systems. Locate the sample chamber within 2.5 meters of the BioTector. The sample
tubing length between the sample intake point and the BioTector SAMPLE port should be 2.5
meters exactly. The height of the sample chamber should be between 100mm and 500mm below
the BioTector. _____
Referring to typical examples in figures 15 and 16 in Section 5.4 Sample, Drain and Exhaust
Connections , connect the sample
or samples to the BioTector with ¼” PFA tube. These ports are
labeled as SAMPLE 1 and if installed SAMPLE 2 etc.
_____
If a BioTector SAMPLER has been supplied with the system, connect the sampler in accordance
with the drawings and instructions in the sampler user manual.
_____
If a SIGMATAX SAMPLER has been supplied with the system, connect the sampler in
accordance with the technical drawings and instructions in the BioTector and Sigmatax user
manuals. Connect the sample tubing (using the 1/4 to 1/8 inches reducing union/connector fitting)
and the Fiber Optic cable, coming from the Sigmatax Sampler, to the BioTector.
_____
Connect
the SAMPLE OUT port with ¼” PFA tube to well ventilated pressure free drain. The
tubing length between the drain and the BioTector SAMPLE OUT port should be maximum 2
meters. The tube should be fitted so that it cannot freeze in cold weather. See figure 16 in Section
5.4.2 Drain 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. The tubing length between the manual grab sample intake point
or calibration standard solution and the BioTector MANUAL/CALIBRATION ports should be
between 2 and 2.5 meters. The height of the manual grab sample or calibration solution should be
between 100mm and 500mm below the BioTector.
_____
If the BioTector is supplied as a
“purge ready” system, connect the -20°C dew point, oil, water and
dust free purge air to the
¼” Swagelok fitting located on the metal plate on the top left hand side
of the BioTector enclosure. The purge air is instrument air which is typically at 60 L/min flow, and
filtered with a 40 microns or smaller filter. The purge ready system is supplied with an air outlet
port “vent” where the purge air is discharged. _____
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 and Reactor Valves are working. _____