Functions/Handling In Operation - "Normal Operation; Function Of Leds, Push Buttons, Display And Diskette Drive - Endress+Hauser eco-graph a Betriebsanleitung

5. Functions/Handling in operation
5.1 Functions of LEDs,
push buttons, display and
diskette drive
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5. Functions/handling in operation - "Normal operation"

(Normal operation = Unit records measured values/signals and plots these)
LEDs (1):
(to NAMUR recommendation NE 44)
• Green LED on: Unit in fault free operation.
• Green LED flashing: Unit is loading a new programme (only for service use).
• Red LED on: Fault, unit failed, no longer operational.
• Red LED flashes: Maintenance requirement due to external cause (e.g. cable open
circuit, calibration etc.), or a message/hint that needs acknowledgement is active.
Push buttons (2):
• õ :Fast return from historic display to normal operation
• ïð :Switches between different display modes.
• ñ :Forward plot wind up to actual time ("paper rewind").
• ò :Reverse plot wind up (historic display/"pull out paper") .
• E :Displays main menu
Hints:
If a measurement point is in an alarm condition the measurement point identifier is
highlighted in red (fast alarm recognition).
The unit continues to record measured values when being operated.
Diskette release push button (3):
Attention: Do not operate when the LED (3a) on the diskette drive is on! Danger of
data loss!
Window (4) for measured value display
• 5 Digital display of measured values
∧∧∧∧∧∧∧ = Measured value over-range
∨∨∨∨∨∨∨ = Measured value under-range
- - - - - - = No signal, cable open circuit
= Measured value with red highlight means alarm condition
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