EBME Forums Forums Maintenance Test Equipment Pressure calibration syringe

Hi all
In a previous role I had a 'syringe' for want of a better word that allowed me to finely adjust pressure to a ventilator or something similar in order to calibrate pressure sensors. The 'syringe' had a fine thread which allowed very fine adjustments of pressure and had quick connect type fitting to apply the pressure via some tubing to the transducer, and T piece to go to a separate pressure meter for calibration purposes.
I have no idea now where the 'syringe' came from, but I'm hoping that someone out there has one and can advise as to where i can get one.
Thanks All

Not got a Bio-Tek (remember them?) DPM-1B then, Richard?

I can certainly imagine the handy tool you describe - and pretty sure "we" had one somewhere - but cannot recall when or where. But I think it may have been made "in-house" by Medical Physics or someone similar.

If all else fails, you may have to knock one up yourself.

Depending upon the precision you are looking for, you may be able to create one from an old (gutted) syringe pump of the Graseby type.

A nice little project for a trainee, perhaps.

I once was able to calibrate a pressure sensor on a syringe pump basically using a syringe in a vice. "Needs must", sometimes.

Tool envy is an ugly condition...( and they are staying in Italy)

Any road I found this:calibration syringe

and just to add I dont think I paid much less for my syringe (which came from the US) many moons ago.

"Tool envy" indeed ... I always wanted a DPM-1B (of my own) but never got hold of one that I could keep.

I wonder if there remains a handy little "pocket" tool like that available these days? You know, a new (or current) version.

In my opinion, DRUCK DPI705 is more suitable because DPI705 has various units that can be switched. For example, mmhg, bar, mmH20?PSI .........



The syringe with threaded tail is really convenient in actual work, but I haven't seen anyone selling it on the market. I have been using ordinary syringes, which is very difficult to calibrate the pressure. It would be very convenient to have such a tool.

Or indeed the simple device described by Richard in the opening post.

It turns out that the DPM-1B has a manual regulating pump inside. I mistakenly thought it was just a pressure meter.

Interesting tools

Yes; a thumbwheel setting static pressure of ±300 mmHg ±1 % ... very useful.

It's a pity that there is no update for subsequent models.
I can only use a normal syringe instead.This causes the pressure to be unstable and there is a possibility of syringe reverse flow.