Operating Instructions Electronic Suspending Balances
Contents
1. 1 Technical data KERN HCN 20K50IP HCN 50K100IP Readability 50g 100 g Weighing 20 kg 50 kg range KERN HCN 100K200IP HCN 200K500IP Readability 200 g 500 g Weighing 100 kg 200 kg range 2 Basic instructions 2 1 Proper use The balance you purchased is intended to determine the weighing value of material to be weighed It is intended to be used as a non automatic balance i e the material to be weighed is manually and carefully suspended As soon as a stable weighing value is reached the weighing value can be read 2 2 Improper Use Do not use balance for dynamic weighings In the event that small quantities are removed or added to the material to be weighed incorrect weighing results can be displayed due to the stability compensation in the balance Example Slowly draining fluids from a container suspended on the balance No permanent load must remain on the balance This may damage the measuring system Impacts and overloading exceeding the stated maximum load max of the balance minus a possibly existing tare load must be strictly avoided Balance may be damaged by this danger of breaking Attention Make sure that never persons or objects are under the load which could be injuried or damaged gt The balance is not suitable for weighing persons gt The balance does not correspond to the law of medical products MPG Never operate balance in explosive environment The2. aning agents solvents or similar agents but a cloth dampened with mild soap suds Ensure that no liquid penetrates into the device and wipe with a dry soft cloth 8 2 Service maintenance The appliance may only be opened by trained service technicians who are authorized by KERN 8 3 Disposal Disposal of packaging and appliance must be carried out by operator according to valid national or regional law of the location where the appliance is used 9 Instant help In case of a fault in the program sequence the balance should be shortly switched off The weighing process must then be restarted from the beginning Fault Displayed e weight does Possible cause The balance is not switched on Batteries are inserted incorrectly or empty not light up No batteries inserted The displayed e Draught air movement weight is ava permanently Vibrations on the suspension of the changing balance e Electromagnetic fields static charging choose different location switch off interfering device if possible Weighing e The display of the balance is not at zero result e Great fluctuations in temperature obviously as incorrect e Electromagnetic fields static charging choose different location switch off interfering device if possible Should other error messages occur switch balance off and then on again If the error message remains inform manufacturer HCN BA defsi 0710
3. g 7 3 Taring e Switch on the balance using the ON OFF TARE key and wait for the 0 display Suspend the tare load and press the ON OFF TARE key e The balance display jumps to 0 0 The weight of the tare load is internally stored The material to be weighed can now be filled in the tare vessel and the weighing value can be read 7 4 Functions With help of the Hold key the following functions can be activated Setting Function H1 Data Hold function 1 Weighing value frozen for 5 sec after pressing the Hold key H2 Data Hold function 2 The weighing value will be frozen after pressing the Hold key until another key is actuated H3 Data Hold function 3 The weighing value is automatically frozen for 5 sec H4 Data Hold function 4 The weighing value is automatically frozen after reaching a stable value until a key will be actuated H5 Animal weighing function H6 Peak value function 7 4 1 Data Hold function With the Data Hold function the weighing values in the display can be fixly displayed for a longer time According to the using range you can select between 4 settings H1 H4 Switch on the balance keep the HOLD key pressed until the current setting Hx H1 H6 appears gt Actuate the ON OFF TARE key until the desired setting H1 H4 appears Use the HOLD key to confirm your selection Suspend the material to be weighed The weighing value is displayed depend
4. g operation 6 1 Adjustment With an adjustment weight the weighing accuracy can be checked and re adjusted at any time Procedure when adjusting Observe stable environmental conditions A short warming up time of ca 1 minute is recommended for stabilization Switch on balance Press the Unit key and keep it pressed approx 15 sec in the display first appears shortly CAL after that there appears the exact size of the adjustment weight Suspend the adjustment weight a short time later appears F the balance returns automatically to the weighing mode In case of an adjustment error or incorrect adjusting weight the display will show E repeat adjustment process KERN HCN 20KS0IP HCN 50K100 IP Necessary 10 kg 50 kg adjustment weight M3 M3 KERN HCN 100K200IP HCN 200K500 P Necessary 50 kg 100 kg adjustment weight M3 M3 HCN BA defsi 0710 7 Operation 7 1 Weighing e The balance is ON OFF TARE key e The balance displays 0 0 e Suspend the material to be weighed e The weighing value appears in the display e f the material to be weighed is heavier than the weighing range the display will show E Overload e The balance is switched off by pressing the ON OFF key a longer time switched on by pressing the 7 2 Weighing units switch over Using the Unit key you can switch over the display between N Ib and kg The marks the active settin
5. gt Never exceed the maximum permitted load Danger of breaking Always ensure that there are no persons animals or objects that might be damaged underneath the load Avoid any kind of shock torsion and oscillating e g caused by inclined suspending Do not use Do not twist under pressure Only apply with tensile force 3 1 Pay attention to the instructions in the Operation Manual Carefully read this operation manual before commissioning even if you are already familiar with KERN balances 3 2 Personnel training The appliance may only be operated and maintained by trained personnel HCN BA defsi 0710 4 Transport and storage 4 1 Testing upon acceptance When receiving the appliance please check packaging immediately and the appliance itself when unpacking for possible visible damage 4 2 Packaging Keep all parts of the original packaging in case you need to return the appliance Only use original packaging for returning 5 Unpacking Setup and Commissioning 5 1 Installation Site Location of Use The balances are designed in a way that reliable weighing results are achieved in common conditions of use You will work accurately and fast if you select the right location for your balance Therefore observe the following for the installation site e Avoid extreme heat as well as temperature fluctuation caused by using next to a radiator or in the direct sunlight e Protect the balance against di
6. ing on your settings H1 H4 see table chap 7 4 symbolised by the A top left 7 4 2 Animal weighing function This function is suitable for busy weighing procedures The result is a mean value formed by 16 weighing values which is found out within 3 seconds Switch on the balance keep the HOLD key pressed until the current setting Hx H1 H6 appears Lug gt Press the ON OFF TARE key until H5 appears Use the HOLD key to confirm your selection Suspend the material to be weighed 7 gt Press the HOLD key the display counts reverse from 3 2 1 The calculated mean value is indicated symbolised by the A top left gt For further measurements press the ON OFF TARE key before 7 4 3 Peak value function This function displays the highest load value peak value of a weighing Measuring frequency 200ms Attention Never exceed the maximum permitted load of the peak value on the balance Danger of breaking Qu Switch on the balance keep the HOLD key pressed until the current setting Hx H1 H6 appears Press the ON OFF TARE key until H6 appears Use the HOLD key to confirm your selection Suspend the material to be weighed The peak value appears for a short time symbolised by the A top left The balance returns automatically to zero and is ready for further measurement Ugg 8 Service maintenance disposal 8 1 Cleaning Please do not use aggressive cle
7. press the HOLD key and keep it pressed gt Do not release the HOLD key Press also the ON OFF TARE key and keep it pressed Keep the ON OFF TARE key pressed however release the HOLD key Press HOLD key anew u Keep both keys pressed until in the display tr appears Release both keys The balance is situated in the menu Using the ON OFF TARE button you can select between the following functions tr zero tracking ON OFF AF Auto off ON OFF rST Reset to factory setting YES NO gt Confirm with HOLD key Inthe display appears the current setting ON or OFF resp YES or NO With help of the ON OFF TARE key you can select between ON or OFF resp YES or NO Confirm your selection with the HOLD key After a short period the balance returns automatically to weighing mode G88 8 6 Adjustment As the acceleration value due to gravity is not the same at every location on earth each balance must be coordinated in compliance with the underlying physical weighing principle to the existing acceleration due to gravity at its place of location only if the balance has not already been adjusted to the location in the factory This adjustment process must be carried out during the initial start up after change in location and variation of surrounding temperature To receive accurate measuring values it is also recommended to adjust the balance periodically in weighin
8. rect draughts due to open windows and doors e Avoid jarring during weighing e Protect the balance against high humidity vapours and dust e Do not expose the device to extreme dampness for longer periods of time Non permitted condensation condensation of air humidity on the appliance may occur if a cold appliance is taken to a considerably warmer environment In this case acclimatize the appliance for ca 2 hours at room temperature e Avoid static charging of the material to be weighed weighing container and windshield Major display deviations incorrect weighing results may be experienced should electromagnetic fields e g due to mobile phones or radio equipment static electricity accumulations or instable power supply occur Change location or remove source of interference 5 2 Unpacking Take the balance carefully out of the package and remove the plastic cover 5 3 Scope of delivery e Suspending balance e Batteries e Operating Manual 5 4 Battery operation Remove battery cover see img Insert 2 AA batteries Reinsert the battery cover please not markings e aen 4 If the batteries are empty in the balance display appears LO Press ON OFF key and replace the batteries immediately In order to save the battery the balance switches automatically off after 4 minutes without weighing Deactivate this Auto OFF function in the menu as follows 5 5 The menu When the balance is switched off
9. serial version is not explosion protected The structure of the balance may not be modified This may lead to incorrect weighing results safety related faults and destruction of the balance The balance may only be used according to the described conditions Other areas of use must be released by KERN in writing Operating Instructions Electronic Suspending Balances 2 3 Warranty Warranty claims shall be voided in case e Our conditions in the operation manual are ignored e The appliance is used outside the described uses e The appliance is modified or opened Mechanical damage and damage caused by media liquids e Natural wear and tear e The appliance is improperly set up or incorrectly electrically connected e The measuring system is overloaded 2 4 Monitoring of Test Resources In the framework of quality assurance the measuring related properties of the balance and if applicable the testing weight must be checked regularly The responsible user must define a suitable interval as well as type and scope of this test Information is available on KERN s home page www kern sohn com with regard to the monitoring of balance test substances and the test weights required for this In KERN s accredited DKD calibration laboratory test weights and balances may be calibrated return to the national standard fast and at moderate cost 3 Basic Safety Precautions gt Do not use the suspending balance for conveying loads
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