With over 40 years experience of designing and building high integrity test and calibration systems, Chell's team of mechanical, electronic and software engineers are ready to design and build solutions for your R&D and production test and calibration applications.
Chell provides customers with a comprehensive calibration service covering all measurement instruments supplied by the company.
Chell Instruments offer a wide range of high quality and reliable mass flow meters, controllers and systems suitable for use in a wide range of applications and industries.
With over 40 years of experience in flow measurement and control, we are extremely well placed to assist in specifying and supplying instumentation for your application, from single instruments to bespoke automated systems. Chell's impressive calibration and repair facilities also allow us to offer comprehensive after sales support.
Chell Instruments are the UK distributor for the 'SAES Pure Gas' range of gas purification equipment. These offer incredible purification performance over a huge range of gases and flow rates through the use of absorber, adsorber, catalyst, heated getter and palladium membrane purification technologies.
We also supply a range of gas handling solutions, from full, bespoke gas panels to high performance needle valves and regulators.
Chell offer a wide range of equipment for the measurement and control of gas pressure. This could be a very high-end primary pressure standard, benchtop calibrator, portable calibrator or simply a single transducer. We can also provide bespoke, automated pressure measurement systems tailored to your exact process requirements.
Chell's impressive calibration and repair facilities also allow us to offer comprehensive after sales support.
Chell supply a range of temperature scanners to complement the pressure scanners
Chell Instruments offer a wide range of high quality and reliable vacuum measurement instrumentation for use in a huge variety of applications and industries.
With over 30 years of experience in vacuum measurement and control, we are extremely well placed to assist in specifying and supplying instrumentation for your application, from single instruments to bespoke automated systems.
Chell's impressive calibration and repair facilities also allow us to offer comprehensive after sales support.
The 719Pro includes a full functioning loop calibrator that sources, simulates and measures mA signals and more making it the ideal test tool for calibrating high accuracy transmitters, pressure switches and pressure gauges.
Get the ultimate in measurement flexibility with the large backlit screen, which displays three parameters at once:
Key Features:
Specifications | ||||
Pressure Measurement | ||||
Range | -12 to 30 PSI /-0.8 to 2 bar | |||
Resolution | 0.001 PSI, 0.0001 bar | |||
Accuracy (1 year) | ± 0.025 % of full scale, 6 months ± 0.035 % of full scale, 1 year Dry Air and non-corrosive gas only |
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Temperature effect (all ranges) | Add ± 0.002 % F.S./°C for temps outside of 15 °C to 35 °C No effect on accuracy on all functions from 15 °C to 35 °C |
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Function | Range | Resolution | Accuracy (1 year) | Comment |
mA dc (simulation and measurement) | 0-24 mA dc | 0.001 mA | ± 0.015 % of reading ± 2 counts | 1000 ohm maximum load in mA source, 26 V dc maximum voltage in mA simulate |
Volts dc (measurement only) | 30 V dc | 0.001 V | ± 0.015 % of reading ± 2 counts | No AC voltage measurement, do not exceed 30 V dc |
Temperature (measurement only, Pt100 RTD) | -50 to 150 °C (-50 °F to 302 °F) | 0.01 °C 0.01 °F |
Temperature ± 0.1 °C (0.2 °F) | ± 0.25 °C (± 0.45 °F) combined uncertainty when using 720 RTD probe (optional accessory) |
Loop power supply | 24 V dc | N/A | 24 mA at 24 V | |
Temperature effect (all functions) | Add ± 0.002 % F.S./°C for temps outside of 15 °C to 35 °C | No effect on accuracy on all functions from 15 °C to 35 °C | ||
Environmental | ||||
Operating temperature | -10 °C to +50 °C | |||
Storage temperature (with batteries) | Per battery manufacturer's specification within storage specification below | |||
Storage temperature (without batteries) | -20 °C to +60 °C | |||
Power Requirements | ||||
Battery | Eight (8) standard Alkaline AA batteries | |||
Battery life | 300 pump cycles to 150 PSI minimum; 1000 pump cycles to 30 PSI; 100 pump cycles to 300 PSI minimum | |||
Physical | ||||
Dimensions (HxWxD) | 24.13 cm x 11.18 cm x 7 cm (9.5 in x 4.4 in x 2.8 in) | |||
Weight | With holster 1.2 kg (2.5 lb) | |||
Connections | ||||
Pressure | 1/8 inch female NPT | |||
Electrical | Standard banana jacks | |||
RTD | 4 pin miniature circular | |||
External module | 6 pin miniature circular | |||
Engineering Units (Configurable) | ||||
psi, bar, mbar, kPa, kgcm2, cmH2O@4 °C, cmH2O@20 °C, mH2O@4 °C, mH2O@20 °C, inH2O@4 °C, inH2O@20°C, inH2O@60 °F, mmHg@0 °C, inHg@0 °C, ftH2O@4 °C, ftH2O@20 °C, ftH2O@60 °F |
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