KERN & Sohn GmbH Ziegelei 1 D-72336 Balingen E-Mail: info@kern-sohn.com Tel: +49-[0]7433- 9933-0 Fax: +49-[0]7433-9933-149 Internet: www.kern-sohn.com Operating instruction Price computing scale KERN RXB Version 1.
GB KERN RXB Version 1.2 11/2010 Operating instruction Price computing scale Table of Contents 1 Technical data __________________________________________________ 4 2 Declaration of conformity ________________________________________ 6 3 Appliance overview _____________________________________________ 7 3.1 3.1.1 3.1.2 3.1.3 3.2 4 5 6 7 Proper use ______________________________________________________ 12 4.2 Improper Use ___________________________________________________ 12 4.
10 Function menu_______________________________________________ 19 10.1 Navigation in the menu ___________________________________________ 19 10.2 Menu overview __________________________________________________ 20 10.3 Adjustment _____________________________________________________ 20 11 Verification__________________________________________________ 22 11.
1 Technical data KERN RXB 3K1M RXB 3K1HM RXB 6K2M RXB 6K2HM Readability (d) 1g 1g 2g 2g Weighing range (max) 3 kg 3 kg 6 kg 6 kg Minimum load 20 g 20 g 40 g 40 g Verification value 1g 1g 2g 2g Verification class III III III III Reproducibility 1g 1g 2g 2g Linearity ±2g ±2g ±4g ±4g Stabilization time 2 sec. 2 sec. 2 sec. 2 sec.
RXB 15K5M RXB 15K5HM RXB 30K10M RXB 30K10HM Readability (d) 5g 5g 10 g 10 g Weighing range (max) 15 kg 15 kg 30 kg 30 kg Minimum load 100 g 100 g 200 g 200 g Verification value 5g 5g 10 10 Verification class III III III III Reproducibility 5g 5g 10 10 Linearity ± 10 g ± 10 g ± 20 ± 20 Stabilization time 2 sec. 2 sec. 2 sec. 2 sec.
2 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.
3 Appliance overview Models without vertical display: Bubble level Secondary display on customer side: Battery compartment Connection network cable ON/OFF switch RXB-BA-e-1012 7
Models with post-mounted display: Post-mounted display, backlit, revolvable Bubble level Battery compartment Connection network cable ON/OFF switch 8 RXB-BA-e-1012
3.1 Overview of display Operator display balance: Weight Basic price 0.00 0.000 0.
Post-mounted display for models with tripod: Weight Basic price Sales price 3.1.1 Display weight Here, the weight of your goods is displayed. The arrows next to the symbols show: NET Net weight a Zeroing display 3.1.2 Display basic price Here, enter your basic price in €/kg or €/100 g via keyboard. The basic price can be switched to €/kg or €/100 g.
3.
4 Basic Information (General) 4.1 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. 4.2 Improper Use Do not use balance for dynamic weighings.
4.4 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.
7 Unpacking, Setup and Commissioning 7.1 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.
7.2.2 Scope of delivery Serial accessories: • Balance • Weighing plate • Power cable • Protective cover • Rechargeable battery • Operating Manual 7.3 Mains connection Power supply is carried out by means of the supplied power cable (220 V, 50-60 Hz). 7.4 Battery power supply The optionally supplied battery is charged with the supplied power supply. Before the first use, the battery should be charged by connecting it to the mains power supply for at least 15 hours.
8 Operation 8.1 Weighing with price determination As soon as the goods to be weighed are placed on the balance and the basic price has been set the price is calculated automatically and displayed in the provided field. 8.1.1 Manual input of a basic price Display Operation Weight [kg] Basic price [€/kg] Price [ € ] If you are using a weighing container use the TARE key for taring 0.000 0.00 0.00 Place goods to be weighed on balance 1.300 0.00 0.
8.1.2 FIX mode – Storing a basic price When FIX -Mode is activated, the set basic price will be stored for additional weighing processes of the same product. Display Operation Weight [kg] Basic price [€/kg] Price [ € ] Press FIX key, balance is in FIX mode. A triangle [W ] pops up next to the [FIX] symbol (FIX mode "on") on the display. 0.000 0.00 0.00 If you are using a weighing container use the TARE key for taring 0.000 0.00 0.00 Place goods to be weighed on balance 1.300 0.00 0.
9 Display background illumination Method 1: Adjustment Auto backlight Function -Press key, [ CEnTR] appears on the weight display. Press the key during this display. This display will appear backlit for weight value > 6 d or after key was pressed. Display disappears after 5 sec when display moves towards zero. Backlight off -Press key, [ CEnTR] appears on the weight display. Press the Backlight switched off to save battery. key during this display.
10 Function menu 10.1 Navigation in the menu Menu activation key (not visible) Press this key and keep on pressing it when balance is turned off. Whilst doing this, turn on balance. Keep pressing down the key until the balance counts down to zero and the first function F0 appears. Further functions F0 – F8 are selected by pressing the TARE key. key, Exit menu by pressing the balance returns to weighing mode.
10.2 Menu overview F0 Not documented, settings are not allowed to be modified Press TARE key ⇓ F1 Not documented, settings are not allowed to be modified Press TARE key ⇓ F2 Not documented, settings are not allowed to be modified Press TARE key ⇓ F3 Adjustment (see chap. 10.
Procedure when adjusting: Attention: In calibrated balances the adjustment function is switch locked. To carry out calibrations, you will have to throw the unlock switch (See chpt. 11.1). Observe stable environmental conditions. A warming up time of ca. 30 minutes is required for stabilization. Ensure that there are no objects on the weighing plate. • • Activate the calibrating function F3 in the menu (See chpt. 10) Weight Basic price Sales price F3 WIDE CAL.
11 Verification General introduction: According to EU directive 90/384/EEC balances must be officially verified if they are used as follows (legally controlled area): a) For commercial transactions if the price of goods is determined by weighing. b) For the production of medicines in pharmacies as well as for analyses in the medical and pharmaceutical laboratory. c) For official purposes. d) For manufacturing final packages. In cases of doubt, please contact your local trade in standard.
11.1 Adjustment key and seals When verification of a scale is finished, the positions indicated on the scale are sealed. Verification of a scale without a seal is invalid.
12 Service, maintenance, disposal 12.1 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. 12.
13 Instant help In case of an error in the program process, briefly turn off the balance and disconnect from power supply. The weighing process must then be restarted from the beginning. Fault Possible cause The displayed weight does not glow. • The balance is not switched on. • The mains supply connection has been interrupted (mains cable not plugged in/faulty). • Power supply interrupted. • Batteries are inserted incorrectly or empty • No batteries inserted.
