36 Flow Level Pressure New Enhancement for Versatile Range of Field-proven Online Viscometers Hydramotion Ltd (UK) is pleased to announce a new enhancement for its versatile XL7 range of field-proven online process viscometers.
Ideal for petroleum products and lubricants, the XL7 offers continuous viscosity measurement with high resolution, excellent repeatability and virtually minimal maintenance. New to the range is the option of an integral temperature sensor, enabling the simultaneous monitoring of fluid temperature and calculation of temperaturecorrected viscosity without the need for a separate thermowell.
With viscosity so dependent on temperature, the facility for measuring both at the same point offers a significant accuracy advantage, especially where measurement conditions may be changing unpredictably from minute to minute. The XL7 always operates at process temperature, which eliminates the chance of potential errors arising from localised cooling of the fluid. The high-temperature HT2 model can be used at up to 450o
C (842o F) without special cooling.
Unaffected by flow rate or bubbles of air or gas, and with no moving parts to wear out or fail in service, the XL7 is a “bolt-on-and-go” device requiring no spares and no accessories. It is factory- calibrated to certified viscosity standards traceable to NIST, so requires no on-site calibration. Measurements are unaffected by variations in flow rate or by the presence of suspended solids or gases. The instrument naturally rejects typical plant vibration frequencies, which gives a very high output stability even in extremely noisy wellhead or refinery environments.
The sensor is an all-welded construction which can be mounted on tanks or pipes at any location and in any orientation using any process fitting, with no need for any ancillary pipework. Calibration is unaffected by installation or environment. All instrument-specific data is stored on the transducer, giving complete flexibility of installation. Any XL7 model can be supplied in an intrinsically safe version certified to IEC Ex ia IIC, suitable for installation in all Hazardous Areas up to and including Zone 0 (explosive atmosphere continuously present), equivalent to Class 1 Division 1 Group A.
While traditional methods of measuring viscosity cannot be used at the high pressures sometimes encountered in oil industry applications, the unique technology of the XL7 imposes no theoretical limit on operating pressure. Hydramotion has recently supplied XL7s rated at 20,000 psi (1380 bar), and instruments with higher ratings are available.
The accompanying VP550 readout unit has a clear, easy-to-read display showing dynamic or kinematic viscosity, both “live” and
corrected to a user-defined reference temperature. The user can select from a range of standard viscosity units including centipoise (cP), pascal-seconds (Pa·s) or centistokes (cSt) as desired. Conversion to other units is also possible. User-friendly intuitive software offers rapid access to any function or parameter for configuring or updating the system. Menu navigation is quick and easy using the simple-tooperate keypad. No programming is required.
There are three user-selectable 4-20mA analogue outputs, all fully configurable, as well as an RS485 serial data link for remote viscosity monitoring and control. The optional USB output facilitates direct connection to a PC or laptop.
Simple to hook up and use, the combination of XL7 transducer and VP550 readout unit gives a reliable, easy-to-use and durable viscosity measurement system with an unbeatably low cost of ownership. Ready for use straight out of the box, the high-performance XL7 is the viscometer of choice for oilfield or other aggressive environments where removal or replacement would be costly, inconvenient or impractical.
Reader Reply Card No 130
Flow, Pressure and Temperature Measuring Device Now Offers Internal Pressure Relief Discs
The rugged PFM Tester Series by Flo-tech (USA) now features an internal safety pressure relief disc, or “burst disc”. The PFM series has long been relied upon to measure flow, pressure, temperature and horsepower on mobile hydraulic equipment. Effective immediately, all PFM Testers will include an internal burst disc component. The new design ensures that in the event of an over pressurisation, that the fluid is safely allowed to bypass the load valve and remain within the hydraulic system. No fluids will escape outside of the tester. Maintenance costs are thereby reduced, and potential harm to the environment from spills is eliminated with the internal design. As before, the internal burst disc is field-replaceable, should an over pressurisation occur.
The PFM Tester utilises a turbine rotor and a magnetic pick-up to measure flow rates by measuring the frequency pulse output from the rotor. Volumetric flow rate is displayed on an LCD or sent via digital output to a PC. The PFM Series provides reliable readings with an accuracy of 1% of full scale and a repeatability of 0.2%. Temperature is measured via internal sensor, and pressure is measured via analog gauge or high-sensitivity digital sensor. For ease of use and safety, all testers have loading valves with fingertip control and pressure surge protection.
Reader Reply Card No 131 Safety Pressure Gauge with Stainless-Steel Connection
Baumer’s (Germany) safety pressure gauge MEP5 is specially designed for use in corrosive atmospheres and fluids. The gauge has a diameter of 100 mm and can measure pressures from -1…0 to 0…1600 bar at gauge working temperatures of -20…70°C. The MEP5 has a stainless-steel housing, sensing element, and fully welded process connection. It complies with protection class IP67. A baffle wall and a blow-out back prevent the operator from risk of injuries in case of failure of the sensing element. The MEP5 contains a special compensating diaphragm which maintains accuracy by equalising internal and external atmospheric pressures. Thanks to its robust design, the MEP5 is particularly suitable for applications in the chemical industry as well as use in heavy vehicles, energy production, and oil and gas plants such as the French TOTAL refinery. Special versions with connection sizes specified by the customer are available upon request. This prevents leakage and allows the correct positioning of the measuring instrument.
The thermal drift of the MEP5 is ± 0.4 per cent for a variation of ± 10°C in relation to the reference temperature 20°C. The gauge may be used on transient fluid temperatures of up to 200°C providing that the temperature of the gauge itself does not exceed 70°C.
ATEX II 2 G -EEx d IIc T6
The MEP5 boasts an accuracy class of 1 according to European norm EN 837-1 and is available with 22 mm square G1/2 or 1/2NPT process connections. Its window is made of safety laminated glass 4 mm thick. Optionally, the watertight gauge can be filled with a dampening fluid. The MEP5 conforms to S3 Safety as defined by European norm EN 837-1 as well as to Pressure Directive PED 97/23/CE and has a Lloyd’s Register Approval certificate.
Reader Reply Card No 132 New, Improved Handheld Conductivity Instruments
Innovative Technology - Fast Gas Analysis Low Consumption - Easy Mantenance
SRA Instruments S.p.A. Viale Assunta 101 20063 Cernusco sul Naviglio (MI) Tel. +39 02.92.14.32.58 Fax +39 02.92.47.09.01
www.srainstruments.com
info@srainstruments.com
SRA Instruments 150, rue des Sources 69280 Marcy l’Etoile Tél. +33 04 7844 2947 Fax +33 04 7844 2962
www.sra-instruments.com
info@sra-instruments.com
Reader Reply Card No 133 February / March 2011 •
www.petro-online.com
D-2 Inc. (USA) has re-introuduced the popular JF-1A-HH Handheld Conductivity Meter for two new measurement ranges. Due to increased demand the JF-1A-HH now covers the ranges of 0-5,000 nS/m and 0-5,000 uS/m. The JF-1A-HH Handheld conductivity sensor utilises D-2 Inc.'s patented AC Measurement Technology. This technology allows the JF-1A-HH to accurately measure fuel containing DC Charges without affecting the measurement. The JF-1A-HH line of handhelds features many benefits that make them far easier and more accurate to use. With benefits including: best reproducibility and repeatability in the ASTM D2624 method, ASTM D2624 Listed, USB Output capability, easy to use two large button interface, 8 Internal data storage points that record a date, time, conductivity and temperature. This device is available with a specially fitted tip for high solid content ink applications. The JF-1A-HH Handheld's can accurately measure any liquid conductivity within our three measurement ranges.
Reader Reply Card No 134
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