Single Syringe pumps are sufficient for many lab applications at less cost.
Library of Common Syringes
Usually no need to measure the plunger, just select your syringe from the library
Easy 4 Button Control
Easy to use. Scroll the menu or number range with the 4 arrow buttons and select.
Frequently Asked Questions
The pumps use simple three wire communications - ground, transmit, and receive. No flow control. No handshaking RS232 Format 8 data bits No parity 1 stop (can use 2 stops) PC with 9-pin connector PC with 25-pin connector data IN pin 2 data OUT pin 2 data OUT pin 3 data IN pin 3 PC with 25-pin connector data OUT pin 2 data IN pin 3
Check the pump calibration by measuring the travel of the pusher block and comparing it to the calculated travel corresponding to a set volume. By NOT using a syringe and measuring dispense volume, we avoid error associated with volume measurement and variations in the diameter of the syringe barrel. For example; Syringe diameter [Becton Dickinson 1ml syringe] = 4.70 mm Volume entered = 0.4 ml From Pr2 l = vol Where r = internal radius of syringe barrel, l = length or travel of pusher block. 3.142(0.47/2)2 l = 0.4 l = 2.3053 cm Calculated travel of pusher block = 0.9076 inch , 2.3053 cm Measurement of the pusher block travel can be made using a micrometer gauge sitting in the syringe holder. Run the pump to make sure the pusher block is fully engaged on the leadscrew and then enter the volume and set the micrometer gauge to zero. Start the pump and when it stops at the set volume the distance moved by the pusher block can be measured.
There is no easy answer. In a real application, a lot depends on how the liquid flows under pressure and temp., the flow path, etc. As a first approximation, pressure is the force pushing on the syringe plunger[lb] divided by the cross-sectional area of the syringe [in2 ]. Therefore, the smaller the syringe the higher the pressure. Pressure units = lb / in2 (psi) Force generated by the MNL 460401 is at least 20 lb MNL 460401 with a single syringe: Pressure = force 40 lb / syringe cross-sectional area.