Covering a wide range of flowmeter types including Transfer and Primary
Standards:
Mass Flow Meters
Mass Flow Controllers
Variable
Area Flow Meters (“Rotameters”)
Coriolis Meters
Orifice Plate & Venturi nozzles
Turbine & Impeller flow meters
Mercury sealed “Volumeters”
Bios 'dry cal' provers
Bubble meters
Calibrations
are made between 1sccm (Standard cm3/min) and 3600 slpm (Std. Litre/min)
with uncertainties from 0.28% at 2 l/min to 0.73%Rdg.+1.35 l/min at 3600
l/min
.
Vacuum
All types of vacuum gauges and controllers are calibrated:
Capacitance manometers
Pirani & thermocouple gauges
Cold Cathode & inverted magnetron Ion
gauges
Vacuum transducers & transmitters
Vacuum gauges and switches
Spinning rotor gauges
Calibrations
range from 1.3 x 10-4 Pa to 133 kPa with uncertainties from 6% +4 x 10-5
Pa at 1.3 x 10-4 Pa to 0.2% + 3Pa at 13.3Pa.
Gas Pressure (absolute)
This service covers all types of vacuum and pressure measuring devices,
as Vacuum, above, plus:
Resonant and quartz bourdon type transducers
Vibrating element transducers
Precision pressure generators & transfer
standards
Air Data and Pitot Static Test Sets
Pressure Scanners – inc.
high density
High accuracy capacitance manometers
Precision aneroid barometers
Standard test gauges
Digital pressure indicators & calibrators
Calibrations
range from 1.3 x 10-4 Pa to 7 MPa with uncertainties from 6% +4 x 10-5
Pa at 1.3 x 10-4 Pa to 0.0020% + 0.25Pa at 350 kPa.
Gas Pressure (Gauge)
All types of both atmosphere and negative pressure referenced devices
are calibrated:
Pressure transducers / transmitters
Micro-manometers
Inclined manometers
Capacitance manometers
Differential pressure switches
Calibrations
range from –100kPa to 7MPa with uncertainties from 0.15% + 0.04
Pa at 133 Pa to 0.0020% + 0.21Pa at 350 kPa.
Gas Pressure
(Differential)
This service is especially tailored to the calibration
of aircraft pressure instruments to BS2G199 at line pressures up to 206
kPa:
Air Data and Pitot Static Test Sets
Airspeed Indicators
Altimeters
Rate of Climb (Vertical Speed) Meters
On Site Calibration
Chell has now achieved BS/EN/ISO/IEC 17025
accreditation for on site work. We can arrange to travel to your site
and carry out a quick and efficient calibration of your instrumentation
with
minimal disruption.
On site calibration of mass flow controllers, meters, rotameters
and provers.
Ideal if instruments cannot be easily removed from your process for
calibration.
Minimal down time.
UKAS accredited.
Low uncertainties.
Can accommodate instruments with ranges from 10 cc/min to 3600 l/min
(air equivalent).
If you have any questions or would like to know more details about our
calibration laboratory and the service it provides, please do not hesitate
to contact us.
Email address
Telephone 01692 500555 Fax number 01692 500088
