Parker SciLog LabTec - FMI Piston Pump Heads: General Information

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Note: The cited pumping ranges are based on the following assumptions: Maximum pump
rate = (Max. Stroke Volume) x (450RPM); with the stroke vernier setting at 450. Minimum pump
rate = (Min. Stroke Volume) x (18 RPM); stroke vernier setting at 50.
Note: The cited pumping ranges are based on the following assumptions: Maximum pump
rate = (Max. Stroke Volume) x (3400RPM); with the stroke vernier setting at 450. Minimum
pump rate = (Min. Stroke Volume) x (102 RPM); stroke vernier setting at 50.
6.0 FMI Piston Pump Heads: General Information
The LabTec™ FM-200 and FM-520 pumps use rotating, reciprocating piston pump heads of various
sizes. In this style of pump head, the rotating piston moves to and from inside a cylinder; sucking in
fluid at the inlet while transferring and releasing the fluid at the outlet. Flow rates for piston pumps
are varied by changing either the motor speed or the stroke length. The FMI pump heads are excellent
for
precise fluid dispensing in non-sterile applications.
6.1 FMI Pump Heads: Construction / Motors / Pump Rates LabTec™ FM-200 Model:
The LabTec™ FM-200 comes with a 600 RPM optically encoded, servo-controlled motor and a
FMI piston pump head.
Materials of Construction: Pump head fi s are either made out of Kynar or Tefzel. Pump piston
and
body are made out of ceramic. Exception: RHOO pump head model has stainless steel (1/8”ID)
piston. “LF” designation refers to a “Low Flow / Low Dead Volume” pump connection, utilizing
¼ - 28 HPLC fi s. All FMI piston pump heads have a maximum pressure rating of 100 psi (6.89
bar).
Pump Head Model: Max. RPM: Pumping Range:
RHOO, 0
–
0.025 mL / s
t
roke 600 RPM 0.08
–
15.0 mL
/
min
RHO, 0
–
0.050 mL
/
stroke 600 RPM 0.17
–
30.0 mL
/
min
RH1, 0
–
0 . 1 0 m L / s t r o ke 600 RPM 0.33
–
60.0 mL
/
min
LabTec™ FM-520 Model: The LabTec™ FM-520 comes with a 3400 RPM motor and a FMI piston
pump head. All head specifications are like those listed for the FM-200 above.
Pump Head Model: Max. RPM: Pumping Range:
RHOO, 0
–
0.025 mL / s
t
roke 3400RPM 0.50
–
85.0 mL
/
min
RHO, 0
–
0.050 mL
/
stroke 3400RPM 1.00
–
170 mL
/
min
RH1, 0
–
0 . 1 0 m L / s t r o ke 3400RPM 2.00
–
340 mL
/
min
Note: Piston heads should not be used for pumping biological fluids or liquids containing
biological cells or cellular components. Piston heads generate high local shear forces
and
produce strong mechanical agitation, which may destroy cells and fragment large molecular
weight components, such as DNA or large protein molecules.