Operator Interfaces, Switches & Relays


Endress+Hauser's E-direct indicators

April 2012 Operator Interfaces, Switches & Relays

RIA45 and RIA46 indicators from Endress+Hauser’s E-direct product range are suitable for a wide range of process applications either installed in the field or in a control room. Industries include chemical, pharmaceutical, food and beverage or any thermal processes. The RIA46 has the option of either aluminium housing or the standard reinforced plastic housing. Both indicators adhere to all safety certification and therefore are able to operate in hazardous conditions.

Ease of configuration ensures quick commissioning as the devices offer preset parameters in certain operating environments. The devices can be set-up using Endress+Hauser standard ReadWin software. Status of the devices can be programmed via open collector and inputs and outputs are galvanically isolated from each other. Both indicators are dual input dual output, either relay or analogue. This allows the units to be used in a wide variety of applications including those that require functionality like linearisation.

The backlight 5-digit 7 segment display indicates process values in high contrast. Measured or calculated values are shown in white and black while additional information like TAG numbers, bar-graphs and unit identification are shown in yellow. On the front of the instrument there are membrane switches which enable the user to program the unit manually. The unit allows for maximum and minimum values storage and resetting of these values can be done manually.

Supply for the indicators is either 24 VDC loop powered or mains 220 VAC. The onboard 24 VDC power supply can be used to power-up transmitter loops. The indicators are self-contained as they have a battery back-up to ensure values stored within the unit are not lost during power outages. In addition peak values and occurring events can be logged. Using universal input allows one to configure the instrument to 0/4-20 mA current signals, voltage, resistance, RTDs and thermocouples.

Both indicators have a large digital display that can be easily read from a distance. The economically priced E-direct product range can be shipped within 48 hours from Johannesburg.

For more information contact Trevor Fletcher, Endress+Hauser, +27 (0)11 262 8000, [email protected], www.za.endress.com



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