Low capacity digital dynamometers and hanging scales (up to 300 kg)

<b>Operating Instructions Hanging Balance<i> </b></i><br> <i><b> </b></i><br> <br> <br> <b>1 Technical </b><br> <b>Data </b><br> <br>nature and scope of this check. Information is available on <br> <i><b>KERN </b></i><br> <i><b>CH15K20 CH50K50 CH50K100 </b></i><br> KERN's home page (www.kern-sohn.com) with regard to the <br>monitoring of balance test substances and the test weights <br>required for this. Test weights and balances can be adjusted <br> <i>Readout </i><br> <i>20 g </i><br> <i>50g </i><br> <i>100g </i><br> quickly and at a reasonable price in KERN's accredited DKD <br> <i>Weighing range </i><br> <i>15 kg </i><br> <i>50kg </i><br> <i>50kg </i><br> calibration laboratory (return to national normal). <br> <br> <b>2 </b><br> <b>Fundamental information (general) </b><br> <b>3 </b><br> <b>Fundamental safety information </b><br> 2.1 Intended <br> use <br> <br> The balance you have acquired serves to determine the <br> Do not use the hanging balance to transport loads. <br> weighing value of the material to be weighed. It is intended to <br> <br> <br> be used as a "non-automatic" balance, i.e. the material to be <br>weighed is manually and carefully attached at the balance. <br> Prevent jolts, torsion and oscillation (e.g. by appending <br> The weighing value can be read off after a stable weighing <br> slopingly) of all kinds. <br> value has been obtained. <br> <br> <br> Never use the hanging balance over the maximum <br> 2.2 Inappropriate <br> use <br> permitted weight (!!Danger of breaking!!). <br> Do not use the balance for dynamic weighing. In the event that <br> <br> <br> small quantities are removed or added to the material to be <br> Always make sure that there are <b>no living beings or </b><br> weighed, incorrect weighing results can be displayed due to <br> <b>materials</b> below the load that could be injured or dam-<br> the "stability compensation" in the balance. (Example: Slow <br> aged. <br> draining off of liquid from a container suspended from the <br> <br> <br> balance) <br>Do not attach a continuous load. This can damage the meas-<br> The hanging electronic balances from the <b>KERN CH</b> <br> series are only suitable for hand-held use (see photo). <br> uring unit as well as the parts, relevant to safety. <br> They are <b>not</b> suitable for hanging from a mechanical <br> Prevent jolts, torsion and oscillation (e.g. by appending slop-<br> hook, e.g. a crane hook. <br> ingly) of all kinds. Be sure to prevent overloading the balance <br>in excess of the stated maximum load (max.), minus any tare <br> <br> weight that may possibly exist. This could damage the balance <br> <br> (risk of breakage). <br> <br> <b>Important: </b><br> · <b>Always make sure that there are no people or materi-</b><br> <br> <b>als below the load that could be injured or damaged! </b><br> <br> · <b>The balance is not suitable for weighing people. Do </b><br> <br> <b>not use as baby scales! </b><br> <br> · <b>The balance does not comply with the medical prod-</b><br> <b>uct law (MPG).</b> <br> <br> Never operate the balance in hazardous locations. The series <br> <br> design is not explosion-proof. Structural alterations may not be <br> <br> made to the balance. This can lead to incorrect weighing re-<br>sults, faults concerning safety regulations as well as to de-<br> <br> struction of the balance. The balance may only be used in <br> compliance with the described guidelines. Varying areas of <br> application/planned use must be approved by KERN in writing. <br> <br> 2.3 Guarantee <br> <br> The guarantee is not valid following <br> <br> <br> · <br> non-observation of our guidelines in the operating <br> <br> instructions <br> ·<br> <br> <br> use outside the described applications <br> · <br> alteration to or opening of the device <br> <br> · <br> mechanical damage and damage caused by media, <br> 3.1 Observe the information in the operating instructions <br> liquids <br> · <br> natural wear and tear <br> Please read the operating instructions carefully before erecting <br> · <br> inappropriate erection or electric installation <br> and commissioning, even if you already have experience with <br> · <br> overloading of the measuring equipment <br> KERN balances. <br> 2.4 <br> Monitoring the test substances <br> 3.2 Staff <br> training <br> The metrology features of the balance and any possible avail-<br> The device may only be operated and looked after by trained <br> able adjusting weight must be checked at regular intervals <br> members of staff. <br> within the scope of quality assurance. For this purpose, the <br>answerable user must define a suitable interval as well as the <br> <i>CH-BA-defsi-0422</i> <br> <i>5</i> <br> <hr> <b>6 Adjustment </b><br> <b>4 </b><br> <b>Transport and storage </b><br> As the acceleration value due to gravity is not the same at <br> 4.1 Acceptance <br> check <br> every location on earth, each balance must be coordinated <br> Please check the packaging immediately upon delivery and <br> in compliance with the underlying physical weighing principle - <br> the device during unpacking for any visible signs of external <br> to the existing acceleration due to gravity at its place of loca-<br> damage. <br> tion ( only if the balance has not already been adjusted to the <br>location in the factory). This adjustment process must be <br>carried out during the initial start-up, after change in location <br> 4.2 Packaging <br> and variation of surrounding temperature. It is also recom-<br> Please retain all parts of the original packaging in case it <br> mendable to adjust the balance periodically during weighing <br> should be necessary to return items at any time. <br> operation in order to obtain exact measured values. <br> Only the original packaging should be used for return con-<br>signments. Before despatch, disconnect all attached cables <br> 6.1 Adjusting <br> and loose/movable parts. Apply any intended transport secu-<br>rity devices. Secure all parts, e.g. glass windshield, weighing <br> Using a precision weight, the accuracy of the balance can be <br> plate, power unit etc., to prevent slipping and damage. <br> checked at any time and adjusted. <br>Adjustment procedure: <br> <b>5 </b><br> <b>Unpacking, installation and commissioning </b><br> Check that the surrounding conditions are stable. A short <br>warm-up time of about 1 minutes are recommended for stabi-<br> 5.1 <br> Place of installation, place of use <br> lisation. <br> The balance is constructed in such a way that reliable weigh-<br> Press "<b>OFF</b>" key approx. 3 seconds, "<b>CAL</b>" and then the exact <br> ing results can be achieved under normal application condi-<br> weight of the adjusting weight will appear at the display. <br> tions. <br> Hang on the adjusting weight on the hook of the hanging <br> By selecting the correct application location<b><i> f</b></i>or your balance, <br> scale. " <b>F</b>" will appear a short time later, and then turn off. <br> you will be able to work quickly and precisely. <br> In case of an adjusting error or a wrong adjusting weight " <b>E</b>" <br> <i><b>Therefore please observe the following at the </i>application </b><br> appears in the display. <br> <b>location<i>: </b></i><br> <br> · Avoid extreme heat as well as temperature fluctuation <br> <i><b>KERN </b></i><br> <i><b>CH15K20 CH50K50 CH50K100 </b></i><br> caused by installing next to a radiator or in the direct <br> <i>Adjusting weight </i><br> <i>10kg (M3) 20kg (M3) 20kg (M3) </i><br> sunlight; <br> <i>(not included)) </i><br> · Protect the balance against direct draughts due to open <br> <br> windows and doors; <br> · Avoid jarring during weighing; <br> ·<br> <b>7 Operation </b><br> <b>Instruction </b><br> Protect the balance against high humidity, vapours and <br> dust; <br> · Do not expose the device to extreme dampness for longer <br> 7.1 Weighing <br> periods of time. Inadmissible bedewing (condensation of <br>air moisture on the device) can occur if a cold device is <br> · The balance is switched on by pressing the "<b>ON/TARE</b>" key. <br> taken into a significantly warmer environment. In this case, <br> · The balance display shows <b>"0.00".</b> <br> please acclimatise the device for approx. 2 hours at room <br>temperature after it has been disconnected from the bat-<br> · Hang on the weighing object carefully. <br> terys. <br> · Avoid static charging of the material to be weighed, weigh-<br> · If the weighing object is heavier than the weighing range the <br> ing container and windshield. <br> display indicates "<b>E"</b> (=Overload). Be sure to prevent over-<br> <br> loading (chap. 2.2 "Inappropriate use"). <br> Major display deviations (incorrect weighing results) are possi-<br> · The balance is switched off by pressing the "<b>OFF"</b> key once. <br> ble if electromagnetic fields occur as well as due to static <br>charging and instable power supply. It is then necessary to <br>change the location. <br> 7.2 Taring <br>· Switch the balance on with "<b>ON"</b> key and wait for "0" to ap-<br> 5.2 Unpacking <br> pear in the display. Hang on the tare load carefully and press <br> Carefully remove the balance from its packaging, remove the <br> the "<b>ON/TARE</b>" key again. <br> plastic wrapping and position the balance in its intended work-<br> <br> ing location. <br> · The balance display becomes "<b>0.00".</b> The weight of the tare <br> load has however been memorised internally. The item to be <br> 5.2.1 <br> List of items supplied <br> weighed can now be placed carefully in the tare container <br>and the weight can be read off. <br> Standard accessories: <br> <br> · Hanging balance <br> · If the "<b>ON/TARE</b>" key is pressed, the total tare value will <br> · Battery <br> appear. When the "<b>ON/TARE</b>" key is pressed again, "<b>0.00</b>" <br> · Operating instructions<i> </i><br> appears on the display. The total tare will be memorised. <br> 5.3 <br> Battery operation and change <br> 7.3 Data <br> HOLD <br> Push off the battery cover on the back of the balance in the <br> · When the "<b>HOLD</b>" key is pressed, the display value (even <br> direction of the arrow. Insert 9 V battery. Replace the battery <br> when the weight values vary) shown on the display will be <br> cover. When the batteries are exhausted the message "LO" <br> held 5 seconds. <br> appears in the balance display. Press the OFF switch and <br> <br> replace the batteries immediately. To preserve battery life the <br>balance switches off automatically after 4 minutes if no weigh-<br>ing has taken place. <br> <i>6</i> <br> <i>CH-BA-defsi-0422 </i><br> <hr> <br> <b>8 </b><br> <b>Maintenance, upkeep, disposal </b><br> <br> <br> 8.1 Cleaning <br> <br> Only use a cloth dampened with mild suds and not aggressive <br> <br> cleaning agents (solvents or similar). Please ensure that fluids <br> <br> are not able to get into the device and rub off using a clean, <br> <br> soft cloth. Loose sample residue/powder can be removed <br> <br> carefully using a brush or hand vacuum cleaner. <br> <br> <br> 8.2 Maintenance, <br> upkeep <br> <br> The operating company shall ensure that load-bearing com-<br> <br> ponents are checked by a competent person at maximum <br> <br> intervals of one year. <br> <br> These checks can be necessary at intervals shorter than one <br> <br> year depending on the conditions of use. This applies, for <br> <br> example, in the case of particularly frequent use, increased <br> <br> wear and corrosion. <br> <br> <br> <br> The device may only be opened by trained service engineers <br> <br> authorised by KERN. <br> <br> Disconnect from the mains supply before opening. <br> <br> <br> 8.3 Disposal <br> <br> <br> The operating company shall dispose of the packaging and <br> the device in compliance with the valid national or regional law <br> <br> of the operating location. <br> <br> <br> <b>9 Troubleshooting </b><br> <b> </b><br> <br> The balance should be switched off for a short time following <br> <br> an interruption in the programme sequence. It is then neces-<br> <br> sary to repeat the weighing process from the beginning. <br> <br> <br> <br> <br> <i><b>Interruption Possible </b></i><br> <i><b>cause </b></i><br> <br> <i>Weight display is </i><br> · <i>The balance is not switched on. </i><br> <br> <i>not illuminated. </i><br> <br> · <i>The batteries are wrongly inserted, the </i><br> <br> <i>batteries are empty </i><br> <br> <br> <i> </i><br> · <i>No batteries are attached </i><br> <br> <i>The weight dis-</i><br> · <i>Draught/air movement </i><br> <br> <i>play changes </i><br> <br> · <i>Table/floor vibrations </i><br> <i>continually </i><br> <br> <br> · Vibrations on the balance suspension<i> </i><br> <br> · <i>Electromagnetic fields / static charging </i><br> <br> <i>(choose different location/switch off inter- </i> <br><i>fering device if possible) </i><br> <br> <br> <i>The weighing </i><br> · <i>The balance display is not set to zero </i><br> <br> <i>result is obviously </i><br> <br> <i>incorrect </i><br> · <i>Adjustment is no longer correct. </i><br> <br> · <i>Great fluctuations in temperature. </i><br> <br> <br> · <i>Electromagnetic fields / static charging </i><br> <br> <i>(choose different location/switch off inter- </i> <br><i>fering device if possible) </i><br> <br> <br> <br> <br> Switch the balance off if other error messages should appear <br> <br> and then switch on again. Contact the manufacturer if the error <br> <br> message does not disappear. <br> <br> <br> <br> <br> <i>CH-BA-defsi-0422</i> <br> <i>7</i> <br> <hr> <noscript>Contacter le Webmaster : <A href="http://www.creation-sites-internet.be">création de sites internet</A></noscript>