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Summary of Contents for KERN VFB
- Page 1 KERN & Sohn GmbH Ziegelei 1 Phone: +49-[0]7433- 9933-0 D-72336 Balingen Fax: +49-[0]7433-9933-149 E-Mail: info@kern-sohn.com Internet: www.kern-sohn.com Operating manual Pallet truck scales KERN VFB Version 1.1 2018-03 VFB-BA-e-1811...
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Page 2: Table Of Contents
KERN VFB Version 1.1 2018-03 Operating instructions Pallet truck scale Contents Technical data ....................4 Basic instructions about weighing system ............. 5 Proper use ..........................5 Improper Use ..........................6 Warranty ............................. 6 Monitoring of Test Resources ....................6 Basic safety notes about weighing system ............ 7 Pay attention to the instructions in the Operation Manual............ - Page 3 Menu ......................... 35 Navigation in the menu ......................35 Menu overview ......................... 36 Servicing, maintenance, disposal .............. 39 10.1 Clean ............................39 10.2 Servicing, maintenance ......................39 10.3 Disposal ............................ 39 Error messages .................... 40 Instant help ....................41 VFB-BA-e-1811...
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Page 4: Technical Data
1 Technical data KERN VFB 2T-3 Readability (d) 1 kg Weighing range (max) 2000 kg Reproducibility 1 kg Linearity ± 2 kg Warm-up time 10 min Recommended adjustment weight (not ( M1 ) added) class Allowable ambient -10° C ..+ 40° C temperature max. -
Page 5: Basic Instructions About Weighing System
It is intended to be used as a “non-automatic balance”, i.e. the material to be weighed is manually and carefully placed in the centre of the loading fork. As soon as a stable weighing value is reached the weighing value can be read. VFB-BA-e-1811... -
Page 6: Improper Use
The weighing system unit may only be operated in accordance with the described default settings. Other areas of use must be released by KERN in writing. 2.3 Warranty Warranty claims shall be voided in case •... -
Page 7: Basic Safety Notes About Weighing System
3 Basic safety notes about weighing system 3.1 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. 3.2 Personnel training The appliance may only be operated and maintained by trained personnel. -
Page 8: Unpacking, Setup And Commissioning
Details see below. Loosen the screw for adjustment of hydraulics Pass the draw chain of the drawbar through the opening and after that through the bolt in the pallet truck scale VFB-BA-e-1811... - Page 9 Insert rod at the lower end of the draw chain at the oblong hole of the hydraulic lever till to the stopper To start-up the lifting mechanism screw down the adjustment screw till to the preset stopper VFB-BA-e-1811...
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Page 10: Display Unit
(1) on the pallet truck scale and screw-in the load cell cable (2) into the connection of the display device. 5.2 Proper use of the lifting device Lower the loading fork Move the load Lift the loading fork VFB-BA-e-1811... -
Page 11: Installation Site, Location Of Use Of The Weighing System
The forks are easily bent and twisted when the load is off- centre. This may result in diminished accuracy. In verifiable models off-centre loads, or slants affecting accuracy, activate the inclination switch which in turn disconnects the display. VFB-BA-e-1811... - Page 12 In this case, acclimatize the disconnected appliance for ca. 2 hours at room temperature. 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. VFB-BA-e-1811...
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Page 13: Scope Of Delivery
5.5 Mains connection Power is supplied via the external mains adapter. The stated voltage value must be the same as the local voltage. Only use original KERN mains adapters. Using other makes requires consent by KERN. 5.6 Rechargeable battery operation Before the first use, the battery should be charged by connecting it to the mains power supply for at least 12 hours. -
Page 14: Installation Of Battery Pack
The operating temperature for the electronic system and the weighing cells will have been reached after three to five minutes. . Prior to this, deviations of c. 0.3% are possible. Loads should not be lifted before this zero adjust is complete. VFB-BA-e-1811... -
Page 15: Appliance Overview
5.9 Appliance overview Manual lever Drawbar Display Unit Load forks Connection of mains adapter Turning knobs Load cell cables Manual lever (Hand lever + Drawbar = Lifting device) VFB-BA-e-1811... -
Page 16: Overview Of Display
5.10 Overview of display Display Significance Charging status of rechargeable battery STABLE Stability display ZERO Zero indicator GROSS Gross weight Net weight AUTO Automatic add-up enabled Totalization Indicators for weighing with tolerance range VFB-BA-e-1811... -
Page 17: Keyboard Overview
• Add weighing value to summation memory • Display sum total • Calculate weighing data via interface • Delete • Change between gross and net weight • Digit selection to the right Navigation button • Switch-over weighing unit • Back to menu/weighing mode VFB-BA-e-1811... -
Page 18: Numerical Input Via The Navigation Buttons
5.11.1 Numerical input via the navigation buttons Navigation Function keys Arrow key Increase flashing digit Digit selection to the left Arrow key Delete Arrow key Digit selection to the right Arrow key Terminate input VFB-BA-e-1811... -
Page 19: Linearization
The test weights to be used must be adapted to the weighing scale’s specifications; see chapter 2.4 “Testing instruments control”. • Observe stable environmental conditions. Stabilisation requires a certain warm-up time. • After successful linearization you will have to carry out an adjustment. VFB-BA-e-1811... - Page 20 Press will be shown. Confirm by will be displayed. Confirm by will be displayed. Press repeatedly until is displayed. Confirm with , select desired setting by = adjustment see chap. 7 = linearization, see chap. VFB-BA-e-1811...
- Page 21 Remove weight, „0“ is displayed. An adjusting error or incorrect adjusting weight will be indicated by the error message; repeat adjustment procedure. After the linearization the weighing system should be adjusted as follows: VFB-BA-e-1811...
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Page 22: Adjustment
Ensure that the system is not loaded. The system should be lifted by approximately 2 lifting index markings and stand absolutely free. 7.1 Zero-setting Unload the weighing system and switch-on by If the weighing system does not display „0“, press VFB-BA-e-1811... - Page 23 After the adjustment the balance will carry out a self-test. Err 4 will appear briefly, followed by weighing value. The system is now in weighing mode. Remove weight, „0“ is displayed. An adjusting error or incorrect adjusting weight will be indicated by the error message; repeat adjustment procedure. VFB-BA-e-1811...
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Page 24: Functions Of Display Unit
Press to switch over between gross and net weight When the pallet is removed, the display shows the weight of the pallet as a negative value. Press the button anew, the system changes to the zero display. VFB-BA-e-1811... -
Page 25: Numerical Tare Input (Pretare)
Acknowledge with . The entered value is displayed as negative pretare value. Lift-off load, the net weight is displayed, moreover „NET“ will appear 8.2.2 Delete pretare value When entering the pretare value, set all decimal digits to „0“. VFB-BA-e-1811... -
Page 26: Weighing
8.3.2 Net weighing This function may only be carried out, after the system having been tared. “NET“ will be displayed Use the button to switch over between the display of the net weight and the display of the gross weight. VFB-BA-e-1811... -
Page 27: Weighing Units Switch-Over
Repeat sequence for each desired weighing unit. Press repeatedly and the device will return to weighing mode. How to change weighing units: To return to the previously enabled weighing units go to weighing mode by VFB-BA-e-1811... -
Page 28: Weighing With Tolerance Range
Press the navigation buttons (see chap. 5.10.1) to enter the lower limit value, the active digit is flashing. (example) Confirm input by Select by pressing SET HI Press , the current setting for the upper limit will be displayed. VFB-BA-e-1811... - Page 29 Select desired setting (bp 1, bp 2, bp 3) with confirm by pressing Press repeatedly; weighing system is in tolerance weighing mode. From here evaluation takes place whether the goods to be weighed are within the two tolerance limits. VFB-BA-e-1811...
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Page 30: Manual Totalizing
No load may be on the loading fork The system should be stable (stability display „STABLE“ illuminated) The added-up weighing value must be more than 20d. • Menu settings: „F4 Prt“ „P Prt“ VFB-BA-e-1811... - Page 31 When zero is displayed press , the number of weighings followed by the total weight will be displayed for 2 sec. During this display press again. The data in the summation memory are deleted. The „M+“ in the display disappears. VFB-BA-e-1811...
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Page 32: Automatic Adding-Up
Number of weighing, followed by the total weight will be displayed for 2 sec. (example) Add more weighed goods as described before. Please note that the weighing system must be unloaded between the individual weighing procedures. VFB-BA-e-1811... -
Page 33: Animal Weighing
Whilst averaging is taking place you can add or remove loads as the measuring value will be constantly updated. To deactivate the animal weighing function / return into the weighing mode select menu setting VFB-BA-e-1811... -
Page 34: Peak Value Function
The peak value remains in the display until it will be deleted. Menu setting: In weighing mode press at the same time, in the display appears HOL D „ “ To exit the peak value function, press, anew VFB-BA-e-1811... -
Page 35: Menu
To change to the available settings, press the Change settings navigations keys as described in chap. 5.10.1. Acknowledge setting / exit the menu Either save by pressing or cancel by pressing Return to weighing mode Press repeatedly to exit menu. VFB-BA-e-1811... -
Page 36: Menu Overview
SetoF oF 0 Automatic switch-off function switched off oF 3 Automatic switch-off after 3 minutes oF 5 Automatic switch-off after 5 minutes oF 15 Automatic switch-off after 15 minutes oF 30 Automatic switch-off after 30 minutes VFB-BA-e-1811... - Page 37 Selectable 0 %, 2 %, 5 %, 10 %, 20 %, 50% Zero setting range Load range where the display is set to zero by pressing Selectable 2 %, 4 %, 10 %, 20 %, 50%, 100 %. Not documented VFB-BA-e-1811...
- Page 38 Selectable 1, 2, 5, 10, 20, 50 Balance capacity (max) Linearization Adjustment not documented not documented Not documented Internal A/D converter value Reset to default setting Not documented Weighing mode (tolerance weighing, add-up) Animal weighing mode Not documented Peak value function VFB-BA-e-1811...
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Page 39: Servicing, Maintenance, Disposal
10.3 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. VFB-BA-e-1811... -
Page 40: Error Messages
• Internal A/D value outside • Err 6 To unload the weighing the normal range system • Check connectors If the error message appears repeatedly, please contact your retailer. VFB-BA-e-1811... -
Page 41: Instant Help
• Great fluctuations in temperature. • Electromagnetic fields / static charging (choose different location/switch off interfering device if possible) Should other error messages occur, switch weighing system off and then on again. If the error message remains inform manufacturer. VFB-BA-e-1811...
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