KERN & Sohn GmbH Ziegelei 1 D-72336 Balingen email: info@kern-sohn.com Tel: +49-[0]7433- 9933-0 Fax: +49-[0]7433-9933-149 Internet: www.kern-sohn.com Instruction Manual Pocket scale KERN TAB Version 1.
GB KERN TAB Version 1.1 03/2013 Instruction Manual Pocket scale Contents 1 Technical data ................................................................................................ 3 2 Basic Information (General) .......................................................................... 4 2.1 2.2 2.3 2.4 Proper use ................................................................................................................................. 4 Improper Use......................................
1 Technical data KERN Weighing range (max) Readability (d) Recommended adjustment weight, added Weighing Units Stabilization time (typical) Operating temperature Humidity of air Dimensions of the housing (W x D x H) [mm] TAB 20-3 20 g 0.001 g 10 g (F2) ct, g, gn 3 sec. + 10° C ….
2 Basic Information (General) 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 placed in the centre of the weighing plate. 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 weighing.
3 Basic Safety Precautions 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. Versions in other languages are non-binding translations. The only binding version is the original document in German. 3.2 Personnel training The appliance may only be operated and maintained by trained personnel. 4 Transportation & Storage 4.
5 Appliance overview 1 2 3 4 6 Wind screen / hinged cover serving as pressure and dust protection Adjustment weight Weighing surface Weighing vessel TAB-BA-e-1311
6 Unpacking, Setup and Commissioning 6.1 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.
6.3 Battery operation and change In order to save the battery, the balance switches automatically off after 30 seconds without weighing. If the balance is not used for a longer time, take out the batteries and store them separately. Leaking battery liquid could damage the balance. 6.4 Initial Commissioning The warm-up period after the start stabilises the measured values. The accuracy of the balance depends on the local acceleration of gravity. Strictly observe hints in chapter “Adjustment”. 6.
7 Operation Mode 7.
7.2 Operation 7.2.1 Weighing Start balance by pressing The balance shows for approx. 3 seconds „HELLO“ in the display and then goes to „0.0“. Now it is ready for operation. If display does not show ”0“, press . Put on items to be weighed, weighed value is displayed. (Example) If the material to be weighed is heavier than the weighing range, the display will show „OVER" (=Overload).
7.2.2 Taring Press to switch on scale by display. and wait for “0.0“ Put the tare vessel on the weighing plate and press the button. The scale display returns to „“0.0“. (Example) Pour object to be weighed into container and read the measured value. (Example) Renewed pressing of to the display screen. after the weighing process results in “0” returning The taring process can be repeated any number of times, e.g. when adding several components for a mixture (adding).
7.2.3 External weighing units Press display. Use to switch on scale and wait for “0.0“ to select the different units g, ct und gn. Pour object to be weighed into container and read the measured value. (Example) The following weighing units are available: Gram g * 20 g *default setting 7.3 ct 100.00 ct gn 308.64 gn Display background illumination The display unit can be kept on or off. For this press shortly 12 .
8 Service, maintenance, disposal 8.1 Cleaning Before cleaning, please disconnect the appliance from the operating voltage. Please do not use aggressive cleaning 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. Loose residue sample/powder can be removed carefully with a brush or manual vacuum cleaner. Spilled weighing goods must be removed immediately. 8.
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. Help: Fault The displayed weight does not glow. Possible cause The balance is not switched on. Batteries are inserted incorrectly or empty No batteries inserted. The displayed weight is permanently changing Draught/air movement Table/floor vibrations The weighing plate is in contact with foreign matter.
