PFTS Portable Flow Transfer Standard

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PFTS

Portable Flow Transfer Standard

• Calibrate gas flow meters/controllers in-situ
- Reduce down time
- Diagnose process problems
- Improve process yield

• High accuracy
- Linearised display provides a
typical 5 fold improvement in
uncertainty.

• UKAS (ISO17025) certified
- Accepted by regulatory bodies
- Aids QA compliance

• Rugged case
- Protects the instruments from
contamination and damage Ultra-low flow ranges from 0-20sccm air FS @ 1bar


Description PFTS Series Portable Flow Transfer Standards provide an easy to operate, cost effective means of calibrating process flow meters and controllers. Available in fullscale ranges from 5 standardcm3/min (sccm) to 10,000 standard litres/min (slpm), nitrogen equivalent, the mass flow measurement is unaffected by line pressure or gas temperature. They can be supplied calibrated for nitrogen, with gas correction factors for other gases, or directly calibrated for the gas of your choice. A dedicated power supply/display is programmed to correct repeatable non-linearity, typically improving uncertainty by a factor of 5, and the whole system is covered by a UKAS (ISO17025) calibration certificate.
Operation The PFTS can be conveniently carried to the device under test DUT) in its case. The flow transfer standard should be connected in series with the DUT and its power supply/display connected to a suitable mains supply (mains cable and 3m interconnecting cable supplied). They should then be left to warm up and stabilise for 30 minutes, prior to isolating the gas supply and zeroing them. The flow transfer standard can then be compared against the DUT at various points through its range
For full specification please download the PDF data sheet (508kb).
FMS1000-3C Portable Flow Measurement System
	The FMS1000-3C is a three channel gas flow measurement system which is used as a transfer standard for field testing and accuracy verification of various makes of LRMs and LLRTs. The operator commands the gas flow rate delivered, which controls and accurately measures the flow rate, simulating various leakage rates. Three separate flow channels, with ranges of 50sccm, 1, and 20.0 slpm of Air full scale (other ranges available) offer errors of better than 0.5% of range. As well as field verification and calibration, this is valuable tool for training new LLRT and LRM operators before going on site.

For full specification please download the PDF data sheet (325kb).