Lift this clamp up and place the syringe barrel is underneath the clamp. Release the clamp to hold the syringe barrel in place. If there was no clamp a syringe might work it’s way out of the syringe holder bracket and pumping could cease.
Syringe Holder Block
“V” Slot (on syringe holder block)
This block features a large V shaped recess where a syringe barrel may be rested and supported.
Syringe Retainer Bracket
The syringe retainer bracket is used to hold the syringe barrel flange securely to prevent the barrel moving backwards and forward whilst pumping. This increases reputability and accuracy of the pump.
Syringe Retainer Thumbscrew
(2 on each side)
These thumb screws secure the Syringe Retainer Bracket.
Commonly referred to as a lead screw. The pump motor (unseen) drives this precision threaded rod which passes through a brass nut block (unseen) in side the pusher block. This pushes and pulls the pusher block and thus the syringe plunger flange.
Prevents siphoning from a syringe. If a syringe is under vacuum pressure it’s plunger would tend to be withdrawn if it wasn’t secured by the anti-siphon plate.
Under this button is the brass nut block which is driven by the drive screw. The nut block is a mechanical protection device, designed to prevent mechanical and electrical damage to the pump, when a pump stall condition occurs.
Pressing and holding this button allows the plunger block position to be set at any position in the pump’s travel. It is normal to hear a click at the beginning of pumping as the nut block’s teeth re-engage the lead screw. If you stall your pump often it is the nut block that takes the punishment and will be worn out – you will need to have your pump serviced.
Power On/Off Switch
It’s a power switch!
Front Panel Controls
The front panel has a number of buttons to operate the pump and an LCD display to indicate what the pump is doing. There are several LED indicators as well. To learn more about these controls and see a basic explanation video visit my Front Panel Control page.
As the author of SyringePumpPro products I have been involved with laboratory pumps for about 10 years now.
My career spans electronics, avionics, programming, teaching, research and development laboratory experience, and even television.