OHAUS CKW-55 Service Manual

Also see for CKW-55: Instruction manual Installation and operation instructions Quick start guide

Contents

OHAUS CKW-55 Service Manual Manual pdf 18 page image

2-6CHAPTER 2 DIAGNOSISSYMPTOMErr 1Err 2Err 3 (LFT mode only)Err 7Err 10Err 14Err 21PROBABLE CAUSEOverload condition, the loadon the Platform exceeds therated capacity of the baseused with the IndicatorUnderload condition.Power on zero exceeds +10%of original calibration zero.EEPROM data incorrect onMain PC board.Library or Real Time Clock(RTC) data incorrect.Zero value exceeds the % zerosetting value.Calibration incorrect.REMEDYRemove excess load. Turn Indicator offthen on. Perform calibration. Refer tosection 3.11 when using a base orsection 3.14 when using a simulator.Replace platform if removed, cycle poweroff then on, see section 3.11 or 3.14 andcalibrate the Indicator.Clear platform of excess mass, orrecalibrate to establish a new zero point.Go through all menus and re-establishall settings or go to each menu and resetto default settings. Check operation ofIndicator , see section 3.9. If this fails,the Main PC board is defective. Refer tosection 4.3 and replace the Main PCboard. Check operation of Indicator , seesection 3.9.Replace RTC (Lithium) back-up battery.Refer to section 4.9 and replace thebattery.Remove excess load from the base orplatform. Select a higher Zero Rangevalue, (Non-LFT only.) in the Setup menu.Perform calibration using proper masses.Perform Operational Tests, see section3.8.2.4 ERROR CODE TABLEThe CKW-55 Indicator is equipped with software which will display an error code under certain conditions.Review the listed codes and follow instructions to correct the problem.TABLE 2-10. ERROR CODES