OHAUS CW-11 Instruction Manual

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OHAUS CW-11 Instruction Manual Manual pdf 32 page image

EN-26 CW-11 IndicatorProcedureSet up Indicator, and calibrate. After this is done,remove power from the Indicator.At the bottom of the rear cover of the Indicator aretwo slots. There is a spring clip at each slot locationwhich holds the cover in place. Insert the smallscewdriver blade into each slot and press and workthe back cover off. With the cover removed, pro-ceed as follows:Remove the rear cover. Inside is the battery com-partment which is wired to the PC board underneath.Remove batteries if installed.Remove the four corner screws from the batteryboard. One of the screws is crossed drilled toaccept a wire seal when used for legal for tradeapplications.Carefully lift the battery board up and out of theindicator making sure that that the wires are notpulled off of the battery connector on the main PCboard.Refer to the illustrations at the left and note theposition of the CAL jumper. The first illustrationshows the jumper in place. To lock out the menus,remove the jumper and position it on one pin asshown in the second illustration. This removes thejumper and stores it in the event it has to be re-positioned.PC Board Connections.JUMP 1JUMP 211+EXE +SEN +SIG CGND -SIG -SEN -EXE TXD RXD GND NEUT 110V 220V1 31 750mA250V1 J9 3NEUT 110V 220VJ813T1J71423J6J11 5J5AJ5B5J2151695J31 965CW11 MAIN BOARDCALJ51 5J4 J103.1 Legal for Trade (LFT) Operation and LFT SealingBefore this product can be used in legal-for-trade or legally controlled applications, it must be inspected inaccordance with local weights and measures or approval agency regulations. It is the responsibility of thepurchaser to ensure that all pertinent legal requirements are met. Please contact your local weights andmeasures office or authorized manufacturer's representative for further details.Legal for Trade (LFT) operation is possible through a Lock Switch ( CAL jumper) located on the PC board. TheIndicator MUSTMUSTMUSTMUSTMUST be set up and calibrated prior to performing this proceedure.+EXE +SEN +SIG CGND -SIG -SEN -EXE TXD RXD GND1 31 7CALJ4 J10