Principle Of Operation; Touch Panel; Measuring Principle; Display Visualization - Deckma Hamburg OMD-24 Series Instruction Manual

3.

Principle of operation

3.1

Touch Panel

The OMD-24 Series Touch Display consists of several buttons and LEDs. Each button/
LED has its own specific function. (For more information see 23. Appendix I.).
+
A.
button
B. OK button
C. AL1/2 button/ LED
D. SYS button/ LED
E. SET button
F. Arrow Slider
G. LOG button
H. TEST button
I. ON button/ LED
-
J.
button
K. ESC button
L. Display
3.2

Measuring Principle

An optical sensor array measures a combination of light scattered and absorbed by oil
droplets in the sample stream. The sensor signals are processed by a microprocessor to
produce linearized output.
If an alarm (set point form 1 ppm to 15 ppm) occurs, the two oil alarm relays are activated
after the adjusted time delay.
The microprocessor continuously monitors the condition of the sensor components and
associated electronics to ensure that calibration accuracy is maintained over time and
extremes of environmental conditions.
3.3

Display Visualization

The display visualizes the oil content status of the units. Using the buttons, it is also
possible to see information about the settings.

Figure 1 Touch Panel

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