KERN & Sohn GmbH Ziegelei 1 D-72336 Balingen E-Mail: info@kern-sohn.com Phone: +49-[0]7433- 9933-0 Fax: +49-[0]7433-9933-149 Internet: www.kern-sohn.com Operating instructions Electronic Suspended Balance Logbook Regular maintenance and care KERN HCB / HCN Version 4.
GB KERN HCB / HCN Version 4.1 09/2013 Operating instructions / logbook Electronic Suspended Balance Contents 1. T ec hnic al data ______________________________________________________________ 4 1.1 1.1.1 1.1.2 1.1.3 1.1.4 1.1.
8. C leaning, Maintenanc e and Dis pos al ___________________________________________ 35 8.1 8.2 8.3 Cleaning and Disposal ________________________________________________________ 35 Regular maintenance and care _________________________________________________ 36 Checklist „regular maintenance“, (see chapter 8.2) __________________________________ 38 9. E nc los ure _________________________________________________________________ 41 9.1 9.
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KERN HCB 50K100 HCB 99K50 HCB 100K200 Readability (d) 100 g 50 g 200 g Weighing range (max) 50 kg 99 kg 100 kg Taring range (subtractive) 20 kg 20 kg 50 kg Reproducibility 100 g 50 g 200 g Linearity ±200 g ±100 g ±400 g 20 kg (M3) 50 kg (M3) 50 kg (M3) Recommended adjustment weight, not added (class) Stabilization time Precision Warm-up time Units Auto off Allowable ambient temperature Ambient humidity (max) Battery (in series) Display Housing size W x D x H Housing material Hook
KERN HCB 200K100 HCB 200K500 Readability (d) 100 g 500 g Weighing range (max) 200 kg 200 kg Taring range (subtractive) 200 kg 200 kg Reproducibility 100 g 500 g ± 200 g ± 1000 g 100 kg (M3) 100 kg (M3) Linearity Recommended adjustment weight, not added (class) Stabilization time Precision Warm-up time Units Auto off Allowable ambient temperature Ambient humidity (max) Battery (in series) Display Housing size W x D x H Housing material Hook and carbine material Net weight HCB_HCN-BA-e-134
KERN HCB 0.5T-3 HCB 1T-3 1 kg 2 kg Weighing range (max) 500 kg 1000 kg Taring range (subtractive) 500 kg 1000 kg Reproducibility 1 kg 2 kg Linearity ±1 kg ±4 kg 200 kg (M3) 500 kg (M3) Readability (d) Recommended adjustment weight, not added (class) Stabilization time Precision Warm-up time Units Auto off Allowable ambient temperature Ambient humidity (max) Battery (in series) Display Housing size W x D x H Housing material Suspension material Net weight 7 2s 0.2 % of max.
KERN HCN 20K50IP HCN 50K100IP Readability (d) 50 g 100 g Weighing range (max) 20 kg 50 kg Taring range (subtractive) 20 kg 50 kg Reproducibility 50 g 100 g ±100 g ±200 g 10 kg (M3) 50 kg (M3) Linearity Recommended adjustment weight, not added (class) Stabilization time Precision Warm-up time Units Auto off Allowable ambient temperature Ambient humidity (max) Battery (in series) Display Housing size W x D x H 2s 0.2 % of max. 10 min kg, lb, N 3 min 5…+35 °C 80 % 2 x 1.
KERN HCN 100K200IP HCN 200K500IP Readability (d) 200 g 500 g Weighing range (max) 100 kg 200 kg Taring range (subtractive) 100 kg 200 kg Reproducibility 200 g 500 g ± 400 g ± 1 kg 50 kg (M3) 100 kg (M3) Linearity Recommended adjustment weight, not added (class) Stabilization time Precision Warm-up time Units Auto off Allowable ambient temperature Ambient humidity (max) Battery (in series) Display Housing size W x D x H 2s 0.2 % of max. 10 min kg, lb, N 3 min 5…+35 °C 80 % 2 x 1.
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2. General Safety Instructions 2.1 Duties of the owner-operator Follow national accident prevention regulations and all operator health and safety at work and operating regulations. • Observe all safety regulations of the crane manufacturer. • The balance may only be used for the proposed purpose. Any type of use which is not specified in these operating instructions, will be considered as improper use.
2.4 Pay attention to the instructions in the Operation Manual Carefully read this operation manual before setup and commissioning, even if you are already familiar with KERN balances. All language versions contain a non-binding translation. The original German is binding. 2.5 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.
2.8 Safety-conscious working • Do not stand under swinging loads, see chap. 5.1. • Position the crane in a way that the load is lifted vertically. • When working with the crane and suspended balance wear personal safety equipment (helmet, safety shoes etc.). 2.9 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.
3. The suspended balance at a glance 3.
Models HCB ≥ 500 kg 1 Anchor eyelet 2 Display 3 Keyboard Attachment devices are not included in scope of delivery with models ≥ 500 kg. Standardised attachment devices are to be used to attach loads.
Models HCN Front view Backview 1 Carbine with safety fastening 2 Display 3 Keyboard 4 Hooks 5 Second display 6 Battery compartment HCB_HCN-BA-e-1341 20
3.2 Overview visual displays and keyboard Displays: kg The current measuring unit is kilogram lb The current measuring unit is pound N The current measuring unit is Newton LO E Indicates the weight value depending on the active setting H1-H6 (see chap. 5.7).
3.3 Label Do not stand or go under suspended loads. Do not use on building site. Keep an eye on suspended loads. Do not exceed nominal rated load of balance. (example) The product conforms to the requirements of the German Equipment and Product Safety Act.
4. Commissioning + 4.1 Always observe chapter 2 „General Safety Instructions“! Unpacking Once delivered and unpacked, suspended balance cannot be returned. The suspended balance is sealed by KERN. SAFETY INSTRUCTIONS for protection against break Carbine and hook are sealed. Removal from packaging is also sealed. + Broken seal obliges to purchase. Fig.: Seal Thanks for your comprehension. Your KERN Quality assurance team 4.
4.3 Checking the original dimensions Enter the original dimensions shown on the production data sheet in the grey boxes of checklist chap. 8.3. Check original dimension of suspended balance; for implementation see chap. 8.3 „Regular Maintenance“ Enter all data (date, tester, results) in the first line under „Inspection before first use“ in the checklist (see chapter 8.3) CAUTION 4.
4.5 Suspending the balance Condition The crane needs a safety bracket (1) that the unloaded suspended balance cannot fall down. If the safety bracket is missing or damaged, please contact the crane manufacturer in order to receive a hook with this safety equipment. Attach the suspended balance on the lower hook of a crane and close the safety bracket. The crane scale’s upper eyelet should rest in the saddle (2).
5. Operation 5.1 Safety instructions Risk of injury due to falling loads! DANGER Take great care when operating the crane and follow the general rules for crane operation. Check all parts (hook, carbines, rings, rope slings, cables, chains etc.) for excessive wear or damage If faults can be seen on the safety bracket of the crane hook or if it is missing completely, the scales must not be used. Work only with appropriate speed Always avoid vibrations and horizontal forces.
5.2 Loading the suspended balance For good weighing results observe the following, illustrations see next page: Only use load attachment devices which guarantee a one-spot suspension and where the scales can be suspended freely. Do not use too large load attachment devices which do not guarantee any onespot suspension. Do not use multiple suspensions. Do not pull or push the load or the loaded balance. Do not pull the hook horizontally. Loading the balance 1.
+ Always used the correct load attachment device, e.g. HCB 100K200 Only use attachment devices which guarantee a one-point suspension and where the scales can be suspended freely. Do not use too large attachment devices which cannot guarantee a one-point suspension.
Do not push or pull Do not pull the hook horizontally Do not use multiple suspensions 29 HCB_HCN-BA-e-1341
5.3 Turn on/off Start-up Press the ON/OFF key. The display lights up and the balance carries out a selftest. The selftest is completed when the weight value 0 appears on the display. Switching Off Press the ON/OFF key for a long time. 5.4 Taring Suspend preload. Press the TARE button, the zero display disappears. The weight of the container is now internally saved. Weigh the material, the net weight will be indicated. After removing the preload weight appears as negative display.
5.6 Switch-over weighing unit The next measuring unit will be displayed kg lbN after each press of the UNIT button. The indicator shows the active unit. 5.7 Functions With help of the Hold-key the following functions can be activated: Adjustment 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 + see chap. 5.7.
5.7.1 Data-Hold function Switch on the balance, keep the HOLD-key pressed until the current setting „Hx“ (H1 – H6) appears. Press ON/OFF button repeatedly until the desired setting „H1-H4“ is displayed. Confirm setting with the HOLD button. Suspend the material to be weighed The weight value is fixed and displayed depending on the setting (H1 – H4) (see chap. 5.7), represented by the [] in the upper left. 5.7.2 Animal weighing function This function is suitable for busy weighing procedures.
5.7.3 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!!). Switch on the balance, keep the HOLD-key pressed until the current setting „Hx“ (H1 – H6) appears. Press ON/OFF button repeatedly until the setting „H6“ is displayed.
7. 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 for the first commissioning, after each change of location as well as in case of fluctuating environment temperature.
8. Cleaning, Maintenance and Disposal Risk of injury and risk of material damage! The suspended balance is part of the lifting gear! For a safe operation please observe the following: Danger Have carried out a regular maintenance by trained specialized 8.1 staff Carry out regular maintenance and servicing, see chap. 8.3. Have the parts exchanged only by trained specialized staff. If there arose discrepancies with the safety checklist, the balance must not more be put into operation.
8.2 Regular maintenance and care The regular 3-month maintenance may only be carried out by an expert with competent knowledge of working with suspended balances. Thereby the national regulations for prevention of accidents as well as the working, operation and safety regulations of the owner-operator. To check the dimensions only use suitable test devices. The regular 12-month maintenance must only be carried out by trained specialized staff (KERN customer service).
Regular maintenance: Prior to each usage • Check for fault-free operation of the attachment devices Initial start-up, every 3 months or definitely after 12 500 weighing processes • Check all dimensions, see checklist chap. 8.3 • Check the attachment device for wear and tear, such as e.g. plastic deformation, mechanical damage (unevenness), notches, striation, cracks, corrosion, thread damage and torsions. Check safety fastening on the attachment device for faults and fault-free operation.
8.3 Checklist „regular maintenance“, (see chapter 8.2) Original dimensions suspended balance*, serial no.: ………………………………… Capacity ……………………………… Carbine a (mm) Hooks b (mm) c (mm) d (mm) Wear and tear Date ………………………………… e (mm) Anchor eyelet spacing f (mm) g (mm) h (mm) i (mm) Wear and tear Angle α (°) k (mm) Tester ……………………………………… *These data can be found in the document attached to the balance. Please keep this document always available. Carbine a Max.
Carbine a Max.
HCB_HCN -BA-e-1341 40
9. Enclosure 9.1 Checklist „Enhanced maintenance“ (General revision) The enhanced maintenance has to be carried out by a service partner authorized by KERN. Suspended Balance Interval Magnetic powder test for cracks Model ………………………………….. Serial no. ……………………………………………..
9.2 List „spare parts and repair of safety-relevant parts“ Attachment device (hook, carbine) for suspended balance Model ………………………………….. Serial no. ……………………………………………..
10. Declaration of -Conformity KERN & Sohn GmbH D-72322 Balingen-Frommern Postfach 4052 E-Mail: info@kern-sohn.de Tel: 0049-[0]7433- 9933-0 Fax: 0049-[0]7433-9933-149 Internet: www.kern-sohn.
