FISP® Models
Available Models
Membrane Types and Recommendations
FISP® probes are equipped
with either a ceramic or polypropylene
micro-porous membrane. Both
materials have been GMP validated.
Most FISP® users
prefer the ceramic membrane
over the polypropylene since
the ceramic is more efficient
and user friendly.
Polypropylene Membrane:
- 0.2 micron
- Hydrophobic
material requires pre-treatment
with 70% isopropyl alcohol
to make it hydrophilic
- High
antifoam concentrations may
cause the membrane to revert
to a hydrophobic state, preventing
aqueous fluids from passing
through the membrane
- Cannot
be autoclaved in a dry state
Ceramic Membrane
- 0.2 micron
- Hydrophilic
material, no pre-treatment
of membranes required
- Smoother
surface allows the vessel
contents to sweep across
the membrane, dislodging
any particulates
- Can be autoclaved
as well as sterilized in
place
- No effects from high
concentrations of anti-foam
agents
- Membrane can be used
indefinitely
Rapid Flow™ Ceramic
Membrane:
- 0.2 micron
- up to 5 ml/min
flow rate
- interchangeable
with standard ceramic membrane
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C-Series |
 |
- Available for 19 & 25
mm ports
- Fits into the fermentors/bioreactors
side port
- Membrane: 1.875
inches long polypropylene
(tubular)
- size: Approximately
0.2 micron
- Dead volume: Approximately
0.19 ml
- Flow rate: Up to 2 ml/min
- Immersion Depth:
90 mm (3.5 inches)*
- Used primarily
for yeast, bacteria and fungal
fermentations
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D-Series |
 |
- Available for 19 & 25
mm ports
- Fits into the fermentors/bioreactors
side port
- Membrane: 1.850
inches long ceramic (tubular)
- Pore
size: 0.2 micron (Other sizes
available.)
- Dead volume: Approximately
0.19 ml
- Flow rate: Up to 2
ml/min
- Immersion
depth: 90 and 110 mm
- Used
for yeast, bacteria, fungal
and cell culture
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F-Series |
 |
- Available
for 12 and 19 mm port
- Fits
into the fermentors/bioreactors
top port
- Membrane: 1.850
inches long ceramic (tubular)
- Pore
size: 0.2 micron (Other sizes
available.)
- Dead volume: Approximately
0.19 ml
- Flow rate: Up to 2
ml/min
- Immersion
depths: 150 mm (5.90 inches),
200 mm (7.875 inches), 310
mm (12.2 inches) & 410
mm (16.1 inches)
- Used for
yeast, bacteria, fungal and
cell culture
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