Publication 5390-001 Revision B
3
Harvard Apparatus Model 33 Twin Syringe Pump User's Manual
Specifications
Harvard Pump 33 Specifications
Accuracy ±0.35%
Reproducibility ±0.1%
Type Dual Syringe Infusion/Withdrawal Parallel/Reciprocal
Size, L x W x H (286 x 311 x 152 mm) 11.25 x 12.25 x 6 in
Weight (6.8 kg) 15 lbs
Power 115/230 VAC, 50-60 Hz via selector switch, 45 W
Fuse 1 A (115 V), 0.5 A (220 V)
Leakage to Ground Typically < 10 µA
Ground Resistance Typically < 0.06 Ω
Voltage Operating Range 95-130 VAC, 220-260 VAC
Drive Motors 2 motors, each 0.9 degree steppers
Motor Drive Circuitry Microprocessor controlled from 1/2 to 1/4 microstepping
Timing Belt Drive 2:1
Lead Screw Pitch 24 threads/inch
Motor Steps per One 1600 at 1/2 stepping or 3200 at 1/4 stepping
Revolution of Lead Screw
Step Rate:
Minimum 27.3 sec/step
Maximum 416.7 µsec/step
Pusher Advance per Step:
Minimum 0.330729 µm
Pusher Travel Rate:
Minimum 0.726699 µm /min
Maximum 95.25 mm/min
Dynamic Speed Range 131,072 to 1
Force 40 lbs max.
Pressure 99.5 PSI max. with 20 ml stainless steel syringe
Calibration Enter syringe diameter, any size, any make, up to 50 mm
diameter
Syringe Size 10 µl (min.), 50 ml (max.)
Flow Rate Range:
Minimum 0.0073 µl/hr (10 µl syringe)
Maximum 53.346 ml/min (50 ml syringe)
Display 5 digits plus 14 indicator LEDs
RS-232 Interface Chained dual bidirectional ports
Non-Volatile Memory Storage of all settings
To Next Page
Loading...