Negative backlight is a plus for panel indicators
An
Omron Electronics product story
Edited by the Engineeringtalk editorial team
Jul 28, 2005
Omron has developed an innovative new range of analogue-input panel indicators built on state-of-the-art technology to set new benchmark standards in functionality and visibility.
Omron has developed an innovative new range of analogue-input panel indicators built on state-of-the-art technology to set new benchmark standards in functionality and visibility.
In particular, in the development of the 1/8 DIN K3HB range, Omron has focused on making the indicators simple to read, even at a distance, and to make interpreting those readings as intuitive as possible.
Key to this excellent visibility is Omron's LCD negative backlight technology, which provides a highly readable display under all conditions.
This is combined with a red-to-green toggle function that allows the display colour to change at a preset value, making the readings easy to interpret from a distance.
The displays provide the operator with standard process information such as highlighting process value, but also set value, output status, min/max value and much more.
In addition to this, the K3HB indicators also provide a bargraph position indication, which is a unique feature in 1/8 DIN horizontal housing panel indicators.
The sampling speed of this new range has been increased to 50 times per second (20ms), or 2000 times per second for the linear sensor indicator version.
Further, users can also specify DeviceNet communications, with the option of a DeviceNet output module delivering high-speed data communication with PLCs, without the need for special programming.
The full range of K3HB analogue input panel indicators includes a process indicator (K3HB-X), a temperature indicator (K3HB-H), a weighing indicator (K3HB-V) and a linear sensor indicator (K3HB-S).
These indicators will provide convenient, high performance solutions in a broad range of applications in process industries.
As an example, the K3HB-V weighing indicator can be used throughout a process, to control valves to that add the right amount of liquid in to a tank, and the K3HB-S linear sensor indicator provides an ideal means of making product quality checks (such as product dimensions), even when the line speed is very high.
The K3HB indicators are designed in a modular fashion, which enables users to select exactly the functionality they require.
A model's actual function is fixed, but there is a wide range of different signal types and you can select a different power supply voltage per model.
Further options include sensor power supply/output boards (with or without communication capability), relay/transistor output boards, a DeviceNet output board and event input boards.
These boards are simple to add to the device.
Further aiding process visualisation is the inclusion of a position meter in the form of a bargraph display, which highlights the present value with respect to the measurement or display range.
With this feature, users gain a ready, intuitive grasp of the operating status, allowing easy judgement of levels and threshold values.
Features of the indicators include a host of measurement and discrimination functions using an external event input, opening up a wide range of application possibilities such as detection and judgement while synchronising on an external signal.
The indicators also provide a comprehensive range of outputs, including comparative outputs.
In addition to high/low comparison with set values, switching outputs based on level changes is also possible.
And all this sophisticated performance is provided within an extremely compact 1/8 DIN housing with a panel depth of just 95mm (or 97mm with the DeviceNet option).
The water-resistant front panel is sealed to NEMA 4X (IP66).
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Contact Omron Electronics
Tel (UK) 0870 752 0861
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