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.
RPM4 Reference Pressure Monitor is different from traditional pressure monitors. State-of-the-art performance from very low pressure to 280 MPa (40,000 psi)… advanced on-board features… compact and rugged… full local and remote communications… RPM4 is the perfect solution in a wide variety of high end pressure calibration, testing and measurement applications.
Infinite Ranging gives RPM4 Reference Pressure Monitor unprecedented versatility in adapting to the specific range of operation. With the easy-to-use AutoRange function, a few simple key strokes or a single remote command string at the start of a test adapt every feature of the pressure monitor to optimize it for the range to be covered. Just enter the maximum pressure and the measurement mode. AutoRange then:
Note: The use of RPM4’s Infinite Ranging and AutoRange feature is recommended to optimize operation for a specific range but is not required to obtain “% of reading measurement specifications.
All Q-RPT modules up to 7 MPa (1 000 psi) include the unique Self Defense System™ (SDS). SDS valves automatically isolate and vent the module's Q-RPT when it is not in use or an overpressure is about to occur. With SDS, any Q-RPT module can be left connected to pressure up to 10 MPa (1 500 psi) without needing to isolate or disconnect it.
RPM4 pressure monitors provides a variety of advanced on-board pressure data functions including:
RPM4's outstanding pressure measurement specifications are made possible by Fluke Calibration’s exclusive quartz reference pressure transducer (Q-RPT) modules.
Q-RPTs measure pressure by measuring the change in the natural oscillating frequency of a quartz crystal with pressure induced stress. To be qualified for use in a Q-RPT module, each transducer is individually evaluated and characterized using primary pressure standards. Only transducers exhibiting required levels of linearity, repeatability and stability are selected. A proprietary compensation model, derived from more than 15 years experience with thousands of quartz pressure transducers, is applied to optimize the metrological characteristics needed in a transfer standard. Standard and premium class Q-RPT modules are available to best fit your performance and budgetary requirements.
A unique dynamic compensation for atmospheric pressure system uses an independent on-board barometer to provide seamless switching between absolute, gauge and compound gauge modes at any time. The barometer is used only to measure the small variations in atmospheric pressure that occur during gauge mode operation so its absolute error and drift over time do not contribute to measurement uncertainty. Q-RPT modules offer the advantages of:
Q-RPT Designation |
SI Version |
US Version |
Measurement MODE(s) Supported |
Operating Media |
SDSTMSelf Defense System |
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Maximum Range [kPa] Absolute | Maximum Range [kPa] Gauge | Maximum Range [psi] Absolute | Maximum Range [psi] Gauge | ||||
A280M-L | 280 000 | 280 000 | 40 000 | 40 000 |
Absolute, Gauge and Compound Gauge |
Gas Stndard |
Not available |
A200M-L | 200 000 | 200 000 | 30 000 | 30 000 | |||
A140M-L | 140 000 | 140 000 | 20 000 | 20 000 | |||
A100M-L | 100 000 | 100 000 | 15 000 | 15 000 | |||
A70M | 70 000 | 70 000 | 10 000 | 10 000 |
Gas Standard |
||
A40M | 40 000 | 40 000 | 6 000 | 6 000 | |||
A20M | 20 000 | 20 000 | 3 000 | 3 000 | |||
A14M | 14 000 | 14 000 | 2 000 | 2 000 | |||
A10M | 10 000 | 10 000 | 1 500 | 1 500 |
Included |
||
A7M | 7 000 | 7 000 | 1 000 | 1 000 | |||
A3.5M | 3 500 | 3 500 | 500 | 500 |
Gas only |
||
A2M | 2 000 | 2 000 | 300 | 300 | |||
A1.4M | 1 400 | 1 400 | 200 | 200 | |||
A700K | 700 | 700 | 100 | 100 | |||
A350K | 350 | 250 | 50 | 35 | |||
A200K | 200 | 100 | 30 | 15 | |||
A160K | 160 | 60 | 23 | 8 | |||
A100K | 110 | 10 | 16 | 1.5 | |||
BA100K1 | 110 |
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16 |
--- |
|||
G200K |
--- |
200 |
--- |
30 |
Gauge only |
||
G100K |
--- |
100 |
--- |
15 | |||
BG15K2 |
--- |
15 |
--- |
2.2 | |||
G15K |
--- |
15 |
--- |
2.2 |
1 BA100K is a barometer with a low point of 70 kPa (10 psia).
2 BG15K is bidirectional gauge from - 15 to + 15 kPa (- 2.2 to + 2.2 psi).
RPM4 can be used as an external reference pressure measurement device for a Fluke Calibration PPC4, fully automated, pressure controller/calibrator. One RPM4 can be connected to PPC4 by 9-pin RS232 cable. The RPM4's Q-RPT(s) become part of the PPC4 system and are managed by the PPC4 transparently to the user. There is only one test connection for the PPC4 system's full range of operation.