Omega Engineering RD8900 user manual

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3.11Small icons (on the top right side ):

Figure 3 – 4

Buzzer: Appears by flashing in red whenever the alarm status occurs. The buzzer will disappear after the user acknowledges the alarm, or the process becomes normal.

Evnt: The percentage of memory space left for events/alarms. For example, evnt 84% means 84% space left for events/alarms. Refer to Event/Alarm Limit in 4.4 Instrument. Various numbers of events/alarms can be set. The icon flashes red when memory space is down to 25 %. The icon returns to normal green after pressing the soft key, either Dump or Clear.

mem: The percentage of memory space left for measured data. The icon starts flashing red when the memory space is down to 25%. The icon becomes normal green after press soft key either Dump or Clear. If the internal memory goes down to 10 %, the earliest measured data and events will be saved to CF card in small batch automatically. If there is no CF card inserted, then the earliest measured data and events will be overwritten and replaced by the latest measured data and events.

CF: The icon shows the status of Compact Flash card. If the CF card is not inserted, the icon shows a red-cross sign. If it is properly inserted, then the icon displays normal green and indicates the percentage of the memory space left on the CF card. The icon starts flashing in red when the memory space goes down to 25%. The icon becomes normal green again after downloading data and events from the CF card to PC. If the CF card is inserted in the recorder and its memory is full, then the memory of CF card remains unchanged and the earliest measured data and events on the recorder will be overwritten and replaced by the latest measured data and events.

Date/Time: To set the local time, please refer to 4.5 Clock.

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Contents Paperless Recorder RD8900 Contents SafetySystem Info Protective Earth DC Supply Safety Notes and Precautions SafetySafety Symbols To replace the power-line fuse Static ElectricityUnique features of recorder General DescriptionExpandable Input and Output Cards CommunicationInfrared Detector IR Detector Storage Media CF CardData Security Ordering codes and accessories Ordering codes RD8900 耟- 耟- 耟 Accessories DescriptionSpecifications PowerDisplay MemoryStandard Ethernet Communication Digital Input Card DI181Comm Module CM181 Approval Standards Infrared DetectorEnvironmental & Physical Installation and wiring InstallationUnpacking Panel mounting stylePage Bench top / Portable style Page Page Page Figure耟2 Setup input, output & 24VDC power supply cards Analog input card part numbers AI181, AI182, AI183VDC auxiliary power supply card AP181 Wiring for the cards Figure耟2 Digital output card DO181 Figure耟2 VDC auxiliary power supply card AP181 RS-232, RS-422, RS-485 wiring Installation of Compact Flash CF card Basic Operation Soft keysMode HistoryEvent/Alarm EventReport StatusExit Dump ClearOperate ShutdownPage Configuration Channel Scale EventPage Display Page Tools Timer, Counter & Totalizer TimerCounter Totalizer Totalizer Timer1Timer2 StorageMedia InstrumentInstrument Ethernet CommunicationRS-232, RS-485 Clock System Info Configuration example DemoSet up PC software Observer IHardware requirements PC Software manual HelpPage How to use PC software Page Expressions on recorder Mathematics Functions MathematicsMath Expressions and an example An example of Math Omega Engineering, INC