MP3
Therapy Beam Analyzer
Operating Manual – Installation of the System for Measurement
D175.131.00/11 en 25
3.3 Filling with Water
3.3.1 Filling the Perspex Tank
Before filling the Perspex tank, ensure that the wa-
ter and the tank both have room temperature.
• Filling with distilled water (see Note for water
quality).
• It is recommended first to fill the Perspex tank to
the maximum level and then to pump the water
into the water reservoir. This way, the tank will
never overflow, because the water reservoir has
a greater capacity.
It may prove useful to fill some more water into the
water reservoir to prevent bubbles and strong
movements of the water, when the water reservoir
is almost empty and the pump continues to operate
for a few seconds. The water inlet is located below
the small flap at the top of the water reservoir. If the
water reservoir was filled with more water, the user
must be ready to turn off the pump when the Per-
spex tank is full. The pump can be turned off with
the OFF button on the control panel of the water
reservoir.
The automatic switch-off prevents the pump from
running dry, should it be turned on while the water
reservoir is empty.
NOTE
Use only distilled water to fill the system.
Add an anti-corrosion fluid recommended by
PTW-Freiburg (PTW-Nr. L999010) to one filling.
Follow the instructions of the manufacturer for
the dosage of the anti-corrosion fluid.
The anti-corrosion fluid has no effect on the absorp-
tion and scatter characteristics of high-energy radia-
tion.
3.3.2 Emptying the Perspex Tank
NOTE
After use, the Perspex tank should be emptied to
prevent deformation of the walls and undue
stress on the seams.
The MP3 water reservoir is used to pump the water
out of the Perspex tank. The inclination required to
completely drain the Perspex tank can be attained
by adjusting one of the screw feet accordingly. Do
not tilt the tank manually. If you wish to empty the
water reservoir, you can pump the water via the
locking nipple L643011.
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