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Posted to News on 26th Jan 2009, 12:19

West Instruments has launched a temperature controller that combines simplicity of use with a range of functions that have only previously been available from more expensive high-end devices. Called ProVU, the new controller also offers the option of integrated data logging in this price bracket, together with a large LCD screen with simple text messages, a setup wizard and customisable menu options; combined, these can help to reduce setup and operating costs still further.

ProVU is designed to make operation as simple as possible, with a large area LCD screen for displaying graphics and messages in plain text, with the option of automatically changing the screen colour for alarm and event conditions. The plain text feature reduces the potential for confusion that is traditionally associated with the mnemonic codes that are often used with competing products with LED displays.

In addition, the new controller incorporates a simple setup wizard, which automatically starts as soon as the instrument is powered on. The wizard guides users through the principle setup and configuration procedures, including the type of inputs, outputs, alarms, set points, etc. For many mainstream applications, this may be all that is required, enabling fast and simple commissioning. These settings can also be saved to a memory stick via a front-panel USB port and then used for later reconfiguration or to download the same program to other ProVU units; alternatively, PC-based BlueControl software can be used for on- and off-line configuration.

For more complex process operations, or where greater monitoring and control of process parameters is needed, then ProVU also offers the option for users to activate additional functions such as data logging, trending and profiling. As each feature is activated, extra pages are automatically added to the user menu, giving access to status information and the relevant control functions. Where security is required, control and parameter settings can be allocated to the password-protected supervisor menu. The advantage of this approach is that it ensures that only the menu pages required are visible to users, which again simplifies overall operation.

The integrated data logging option can be configured to log process values, set points and alarms by recording historical data for export to a standard .csv file. There is also a facility to provide on-screen trend and alarm views. Functionality is extended further by the profile feature, which supports 255 segments for use in up to 64 profiles. Supported segments include ramp, dwell, hold, loop, jump-to-profile. Profile control is possible from the controller, by remote input or timed via the integral real-time clock.

ProVU is a standard 1/4 DIN size, making it easy to retro-fit. It has a universal input for thermocouple, RTD and linear DC signals, and a range of output options including relay, SSR driver, linear DC and triac. As the output options are modular, it is easy to match them to particular process requirements. Communications options include Modbus TCP Ethernet and RS485 Modbus RTU.


West Instruments

The Hyde
BN2 4JU
UNITED KINGDOM

01273 606271

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