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4.8 Display unit (DU)
There are two versions of the (optional) display unit DU:
- systems with up to 16 probes have a single-row LED-display
- systems with 17 up to 32 probes have a double-row LED-display
For each probe a LED indicates the state of the probe:
- green: probe submerged in water
- red: probe in steam
- surplus LEDs (e.g. 13, 14, 15, and 16 if the system has 12 probes) are not activated and remain
dark
The condition of the system is indicated via 3 status-LEDs (identical to the LEDs of the CU / see Chap.
4.2).
If a discrepancy in the measurment is detected (water above steam), the probe that indicates water
flashes green (see Chap. 4.2).
If a probe failure is detected the corresponding LED flashes red (see Chap. 4.2).
