Emerson introduces Rosemount 3490 controllers
The 3490 Series is user friendly and has the capability to perform a variety of calculations on the signal received from the transmitter, for example, translating level into volume or flow. All variants feature a multi-function back-lit display and integrated six button keypad. The intuitive menu driven display and wizard-assisted programming makes the unit easy to use without any special training.
Suitable for wall or panel mounting in a non-hazardous area, the control units are 115/230Vac or 24Vdc powered and provide an intrinsically safe 24Vdc power supply to the transmitter which may be mounted in a hazardous area. The power supply is fully protected and there is no need for any external I.S. barrier.
Rosemount 3490 Series units can be used as a local display for any HART compatible or 4-20mA device. The clear visual display will show the measured value of any of the HART variables of the transmitter together with units and the controller relay status. There are five voltage free SPDT relays for the control of pumps or to trigger alarms in other equipment.
When a Rosemount 3100 Series Ultrasonic Level Transmitter or 3300 Series Guided Wave Radar HART transmitter is connected, the 3490 Series will recognise the transmitter, allow selection of variables to be processed, and allow full access to and programming of the transmitter configuration parameters, eliminating the need for any other HART programming device.
When any other HART transmitter is connected the control unit will enable communications and allow programming of the universal and common practice HART commands.
The Rosemount 3491 is the Standard Control Unit, the 3492 Differential model accepts inputs from two transmitters with HART or 4-20 mA analogue inputs (one analogue-one HART, or two HART at the same time). It can perform a variety of calculations providing a single current output proportional to the answer. The 3493 Logging model has an on-board logging system which can log up to 7000 samples at user definable intervals, for example logging of PV (or any other displayed variable) and totalised flow values in flow measurement applications. All models can be supplied to meet CE, ATEX, IECEx, CSA, or UL certifications for global use.
Rosemount 3490 Series Universal Control Units are part of Emerson's broad range of intelligent, digital field devices that power the PlantWeb digital plant architecture to improve plant efficiency by 2% and more through delivering asset optimisation, process automation, and management execution.
About Emerson Process Management
Emerson Process Management, an Emerson business, is a leader in helping businesses automate their production, processing and distribution in the chemical, oil and gas, refining, pharmaceutical, food and beverage, pulp and paper, power, water and wastewater treatment and other industries. A division of Emerson, Rosemount is a global leader in high-precision pressure, temperature, level, and flow instrumentation. Rosemount best-in-class technology and expertise plays a key role in the Emerson mission of combining superior products and technology with industry-specific engineering, consulting, project management and maintenance services.
Emerson brands include Rosemount, PlantWeb, Fisher, Micro Motion, Mobrey, Daniel, Bristol, DeltaV, Ovation, and AMS Suite.
Emerson, based in St. Louis, is a global leader in bringing technology and engineering together to provide innovative solutions to customers through its network power, process management, industrial automation, climate technologies, and appliance and tools businesses. Sales in fiscal 2006 were $20.1 billion.
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