User Guide - Eurotherm Ltda

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nanodac RECORDER/CONTROLLER: USER GUIDESAFETY NOTES (Cont.)11. The maximum continuous voltage applied between any of the following terminals must not exceed 240Vac.1. Relay output to logic, dc or sensor input connections2. Any connection to ground.The ac supply must not be connected to sensor input or low-level inputs or outputs.12. Over temperature protection: A separate over-temperature protection unit (with an independent temperaturesensor) should be fitted to isolate the process heating circuit should a fault condition arise.Alarm relays within the recorder/controller do not give protection under all fault conditions/13. In order to allow the power supply capacitors to discharge to a safe voltage, the supply must be disconnectedat least two minutes before the instrument is removed from its sleeve. The touching of theexposed electronics of an instrument which has been removed from its sleeve should be avoided.14. Instrument labels may be cleaned using iso-propyl alcohol, or water or water-based products. A mildsoap solution may be used to clean other exterior surfaces.USB DEVICE PRECAUTIONSNote: the use of U3 USB Flash drives is not recommended.1. Precautions against electrostatic discharge should be taken when the instrument terminals are beingaccessed. The USB and Ethernet connections are particularly vulnerable.2. Ideally, the USB device should be plugged directly into the instrument, as the use of extension leadsmay compromise the instrument’s ESD compliance. Where the instrument is being used in an electrically‘noisy’ environment however, it is recommended that the user brings the USB socket to the frontof the panel using a short extension lead. This is because the USB may ‘lock up’ or reset in noisy environmentsand the only means of recovery is to remove the device, then re-insert it. For memory sticks,EMC-related failure during a write operation might cause corruption of the data held on the stick. Forthis reason, the data on the memory stick should be backed up before insertion and checked afterremoval.3. When using a USB extension cable, a high quality screened cable must be used. The total length ofUSB cable between the device and the USB port must not exceed 3 metres (10 ft.)4. Most barcode readers and keyboards are not designed for use in industrial EMC environments, andtheir operation in such environments may result in impaired performance of the recorder/controller.32-BIT RESOLUTIONFloating point values are stored in IEEE 32-bit single precision format. Values which require greater resolutionthan is available in this format are rounded up or down.SYMBOLS USED ON THE RECORDER LABELLINGRefer to manual for instructionsThis unit is CE approvedC-Tick mark for Australia (ACA)and New Zealand (RSM)Risk of electric shockPrecautions against static electrical dischargemust be taken when handlingthis unitEthernet connectorUnderwriters laboratories listedmark for Canada and the U.S.A.USB connectorOne or more of the For symbols environmental below may reasons, appear this as unit a part of the recorderProtectivelabelling.conductive terminalmust be recycled before its age exceedsthe number of years shown in the circle. (Safety Earth)Page 2HA030554Issue 7 Nov 12
nanodac RECORDER/CONTROLLER: USER GUIDE1 INTRODUCTIONThis document describes the installation, operation and configuration of a paperless graphic recorder/controller.The instrument comes, as standard with four input channels and is equipped, for secure archivingvia FTP transfer and/or to USB memory stick.1.1 UNPACKING THE INSTRUMENTThe instrument is despatched in a special pack, designed to give adequate protection during transit.Should the outer box show signs of damage, it should be opened immediately, and the contents examined.If there is evidence of damage, the instrument should not be operated and the local representativecontacted for instructions. After the instrument has been removed from its packing, the packing should beexamined to ensure that all accessories and documentation have been removed. The packing should thenbe stored against future transport requirements.2 INSTALLATIONCAUTIONBefore installation, ensure that the specified instrument supply voltage matches the facility supply.2.1 MECHANICAL INSTALLATIONFigure 2.1.1 gives installation details.2.1.1 Installation Procedure1. If it is not already in place, fit the IP65 sealing gasket behind the front bezel of the instrument.2. Insert the instrument through the panel cutout, from the front of the panel.3. Spring the retaining clips into place, and secure the instrument by holding it firmly in place whilst pushingboth clips towards the rear face of the panel.4. The protective membrane can now be removed from the display.Retaining spring (two places)For the sake of clarity, the panelis shown as though transparentPush springs towards panel2.1.2 DemountingFigure 2.1.1 Securing the InstrumentWARNINGBefore removing the supply voltage wiring, isolate the supply voltage and secure it against unintendedoperation.1. Isolate the mains supply and secure it against accidental operation. Remove all wiring and the USBdevice and Ethernet cable (if any).2. Remove the retaining springs by unhooking them from the sides using a small flat-blade screwdriver.3. Pull the instrument forwards out of the panel.Note: See “C1 BATTERY REPLACEMENT” on page 327 for a more detailed descriptionHA030554Issue 7 Nov 12Page 3
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User Guide - Eurotherm Ltda

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