Bargraphs should be easy to read and especially from a distance, even in bright sunlight. The CE0040 is what a bargraph should be and what's more it is a dual-channel unit with optical isolation on each channel.

Sealed in an IP56 rated metal enclosure the unit may be front mounted to control panels and clamped in place with the supplied mounting hardware. Connections are made with supplied standard fast-connect combicon screw-terminal plugs. Supply power may vary from +9 to +30VDC permitting this unit to be run directly from PLC power and truck batteries.

Visually, the display is very easy to view and with it's 32 segments per channel offers a high resolution resulting in a smooth bargraph display. Further enhancements are made in software to dampen the response of the display to match that of human operators.

The superior quality of the unit makes it the product of choice in demanding applications yet it's low-cost makes it a sensible choice in any application.

Display technology

32 x2 super-bright RED (>5,000mcd max)

Current

125ma @24VDC, 250ma @12VDC

Input

4-20ma

Physical

54mm x 132mm x 40mm (WxHxD)

Input resistance

10ohms

Environment

-40'C to +85'C operating, IP56 rated

Input voltage drop

200mv (max)

Isolation

3,000V

Output

2A switch to common

Connections

4 way 5mm screw terminal block

Sampling rate

1000 samples/sec

Standards

IEC 1010; AS/NZS 3548 EMI/EMC; C Tick compliant

OPERATION

CONNECTIONS

Each input is sampled independantly at 1,000 samples per second with a 10-bit resolution. The results are sent via an optically-isolated barrier to the display processor which ranges and smooths the display on each 32-segment display.

At start-up the display will do a self-test by running a sequence through each led which can then be visually checked.