ATEX humidity & temperature sensors!

Rotronic has introduced a new series of Intrinsically Safe sensors and measurement transmitters, suitable for installation in areas where there is a risk of explosion due to the presence of dust or gas in the environment. They were developed for the pharmaceutical, biotechnology, grain & sugar, petrochemical, and oil & gas industries.

Conforming to the latest international standards, the HygroFlex5-EX measurement transmitter is galvanically isolated, there is no need for an intrinsically safe power supply, dedicated ‘clean’ earth or a Zener barrier. The stainless steel probe selected for the application from the range available is rapidly interchangeable, no calibration adjustment required.

Significant advantages of the Rotronic ATEX humidity & temperature sensors:
• Interchangeable stainless steel probes certified for operation in Zone 0/20
• Standard & cable mount probes, screw-in probe for applications at pressure
• HygroFlex5-EX measurement transmitter certified for Zone 1/21
• No intrinsically safe power supply required; galvanically separated
• Wall and duct versions of the measurement transmitter available
• 2-wire supply, 2-analogue outputs (inc. dew point, g/kg & moisture values)
• Sensor alarm – humidity & temperature can be set to fail high
• Robust aluminium transmitter housing; IP66 protection
• LC display option with trend indicators. Keypad for configuration
• Service interface (USB) for configuration using HW4 (outside explosion zone)
• Range of calibration accessories available (for use outside the explosion zone)

IS for SOS

Excellent Performance in Hazardous zones

ESI Technology has now integrated its proven Silicon-on-Sapphire pressure sensing technology into a range of intrinsically safe transmitters.

Hazardous Zones
Explosive atmospheres can be caused by flammable gases, mists, vapours or combustible dusts. If there is enough of the substance mixed with the air, one source of ignition can cause an explosion, leading to major damage, serious injury and even loss of life. Using the correct intrinsically safe equipment is a significant factor in the prevention of such explosions.

ATEX is the name commonly given to the framework for controlling explosive atmospheres. The regulations apply to all equipment intended for use in hazardous zones whether mechanical or electrical, and all protective systems. Intrinsic safety equipment must be tested and approved by an independent body to assure its safety. It involves a detailed process of examination, testing and assessment of equipment, with the end result being the issue of an ATEX certificate and report confirming that the product is safe to use within potentially explosive environments.

ESI now has an extensive range of intrinsically safe Silicon-on-Sapphire pressure transmitters, all ATEX approved to EEXIA IIC T4 standards by SIRA- a world leader in the conformity assessments field.

S.O.S.
Silicon-on-Sapphire (S.O.S.) technology was initially utilised in the advancement of high temperature integrated circuits for the NASA space programme. ESI has taken this technology and developed a sensor that is capable of accurately measuring vibration, torque, force or pressure in extreme temperatures over long periods of time. The big advantage of an S.O.S. sensor over conventional silicon based sensors is that it is free from residual stresses caused during processing which can lead to reduced performance. The excellent elasticity of the sapphire is a very important factor. The ability to bend the wafer and bring it back down to its original position- known as repeatability- is a highly desirable characteristic for sensors.

Incorporating SOS into applications where ATEX approval is required offers a reliable and durable solution with unbeatable performance and value. The range includes absolute, differential, submersible, high pressure, high accuracy, hygienic and rugged oil & gas transmitters.

Voltage alert in hazardous areas

The Diversified Electronics division of Marsh Bellofram Corporation has announced that it has achieved hazardous area certifications (Class 1, Division 2, HAZ LOC, Groups A, B, C, D) for its UPA-130 series Universal Voltage Alert.

The Voltage Alert is designed to reduce the risk of electric arc flash by pre-verifying the electrical isolation from outside of a control panel before it is re-verified with a meter. It operates over a standard range of 40 to 750 VAC (30 to 1000 VDC) line-to-line or ground-to-ground, is phase insensitive and offers high surge immunity protection. When hardwired to the load side of a circuit breaker or main disconnects, the UPA-130 series flashes upon detection of hazardous AC and DC voltage in any individual phase. After disconnecting power to an enclosure, electricians can pre-verify voltage isolation while an enclosure door is still safely closed. The compact, eight-detector UPA-130 series offers a potted construction with six-foot leads and is designed to fit a 30mm knockout. Its design includes redundant circuitry and the incorporation of long-life display panel LED’s for extended use, with components housed in NEMA 4X, 12 and 13 electrical enclosures.

The UPA-130 series Universal Voltage Alert is a reliable safety tool for pre-verification of the presence or absence of residual electrical power or charges, or as a zero energy indicator, both before or during mechanical lock out/tag out (LOTO) procedures. It can also be used to enhance NFPA 70E and OSHA regulatory compliance standards. This series is also ideal for use in applications such as circuit breaker disconnects, as well as with NFPA 70e Category III and IV high energy panels; or as an added electrical safety tool on other types of frequently accessed electrical panels. In addition to its hazardous area certifications, it is also compliant to CATIII and CATIV standards, and is CE marked and UL-approved in both the US and Canada.

Coriolis range expanded

Micro Motion® loop-powered Model 2200S transmitter is now available with the compact, drainable F-Series Coriolis flowmeters
Emerson Process Management has expanded the range of applications for its proven 2-Wire Micro Motion Coriolis mass flowmeters. The addition of the compact and drainable Micro Motion® F-Series sensors mean 2-wire technology can be applied to an even broader range of installations.

Their 2-Wire Coriolis technology has been field proven in a range of industry applications around the world. The addition of the F-Series range expands the line of Micro Motion ELITE flowmeters for 2-wire applications to line sizes from 1/10” (DN2) to 6” (DN150), with flow ranges of 0.075 lb/min (2 kg/h) to 20,000 lb/min (545,500 kg/h).

The 2-Wire 2200S transmitter used with their ELITE and F-Series Coriolis sensors delivers full measurement performance, without the constraints of temperature or viscosity limits. Ideal for continuous process applications, the 2200S transmitter is suitable for integral or extended mount and ideal for long wiring runs and applications in hazardous areas. There is the option of a stainless steel housing for use in harsh environments.

The transmitter is intrinsically safe, is suitable for a range of process conditions and has C1D1, ATEX and Zone1 hazardous area approvals. Equipped with MVD™ digital processing technology, the Micro Motion 2200S transmitter delivers multivariable and diagnostic information via HART® or IEC-approved WirelessHART® communications for reduced costs through improved process consistency and maximised uptime.

Micro Motion Coriolis meters are part of Emerson's broad range of intelligent, digital field devices that power the PlantWeb™ digital plant architecture. Further cost savings, increased plant availability, and enhanced safety and environmental compliance are achieved when the meters are integrated into PlantWeb.

Pilot valve

Low power Ex d pilot valve has IEC Ex Approval
Low wattage coil (0.5W) reduces battery drain and heat rise, minimises wiring costs and provides energy savings

Low power Ex d pilot valve with IEC Ex Approval available with either a painted aluminium or stainless steel enclosure Low power Ex d pilot valve with IEC Ex Approval, is ideally suited to offshore applications

ASCO Numatics has new (WS)LPKF low power pilot with Ex d certification for the compact 551, 552 and 553 series pilot valves. The valve is available with either an aluminium or stainless steel enclosure, and with a power consumption of just 0.5W at 24V DC, has the lowest consumption of any Ex d certified valve for the process industry. The low wattage coil reduces battery drain and heat rise, minimises wiring costs and provides energy savings. The savings in power usage over the installed life of the solenoid valve lower the total cost of ownership.

Compatible with the ASCO Numatics 551-553 ranges in aluminium, brass (551 range only) and stainless steel, the valves have a large flow range of up to 860 l/min for the 551 valve and 3800 l/min for the 553 valve. Certified according to ATEX, IEC Ex and FM, the new range is ideally suited to applications in the offshore market where high levels of safety and superior resistance to aggressive operating environments are required.

The housing and cover of the enclosure are in 316L stainless steel or painted aluminium and the operator can be rotated 360° to select the best position for cable entry. Electrical connection is via either a shielded or unshielded cable gland (½ NPT) to easy access screw terminals.

The enclosure is supplied with a plastic exhaust protector fitted as standard and a metal exhaust protector is available as an option. The operators are suitable for use in ambient temperatures from -40°C to +60°C, and the flameproof enclosure is rated to 112GEx d IIB + H2 T6, 112DEx tD A21 IP67 T85°C, Certification: IEC Ex, ISA and EN 60079-1, 61241-1