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 instructions Pocket balance KERN CM Version 1.
GB KERN CM Version 1.8 10/2006 Operation instructions Pocket Balance Table of contents 1 2 3 Technical data ----------------------------------------------------------------------------------- 3 Declaration of conformty--------------------------------------------------------------------- 4 Fundamental information (general)------------------------------------------------------- 5 3.1 3.2 3.3 3.4 4 Fundamental safety information----------------------------------------------------------- 6 4.1 4.2 5 6.2.
1 Technical data KERN Readout (d) CM 60-2N CM150-1N CM 320-1N CM 1K1N 0,01 g 0,1 g 0,1 g 1g Weighing range (max) 60 g 150 g 320 g 1.000 g Taring range (subtractive) 60 g 150 g 320 g 1.
2 Declaration of conformty Declaration of Conformity The electronic pocket balance Type: KERN CM 60-2N KERN CM 150-1N KERN CM 250-1N KERN CM 1K1N KERN CM 50-C2N KERN CM 500-GN1 correspond to the following EC requirements: EC-EMC-directive version 89/336/EEC Compatible norms are, in particular Standards for electronic scale.
3 Fundamental information (general) 3.1 Intended use The balance you have acquired serves to determine the weighing value of the 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. The weighing value can be read off after a stable weighing value has been obtained. 3.2 Inappropriate use Do not use the balance for dynamic weighing.
4 Fundamental safety information 4.1 Observe the information in the operating instructions Please read the operating instructions carefully before erecting and commissioning, even if you already have experience with KERN balances. 4.2 Staff training The device may only be operated and looked after by trained members of staff. 5 Transport and storage 5.1 Acceptance check Please check the packaging immediately upon delivery and the device during unpacking for any visible signs of external damage. 5.
Major display deviations (incorrect weighing results, or a failure function of the calculator) are possible if electromagnetic fields occur as well as due to static charging and instable power supply. It is then necessary to change the location. If the calculator is interrupted by static charging, reset it to normal by pressing the “ON/AC” button. 6.2 Unpacking Carefully remove the balance from its packaging, remove the plastic wrapping and position the balance in its intended working location. 6.2.
6.4 Draft shield + weighing container (CM 50-C2N, CM 500-GN1) Before weighing: • Put on Weighing pan • Unfold draft shield • Place the weighing material on weighing plate. • put on draft shield. After weighing: • Put Draft shield and weighing pan over weighing plate 6.5 Initial start-up A warm-up time of 1 minutes stabilises the measured values after switching on. The accuracy of the balance depends on the local acceleration of the fall.
7 Operation 7.1 Overview of display CM 60-2N / CM 150-1N / CM 320-1N / CM 1K1N (Units on display) 7.2 Overview of display CM 50-C2N (Units on panel sheet) 7.3 Overview of display CM 500-GN1 (Units on panel sheet) 7.4 Operating elements 7.4.1 Weighing Switch the balance on by pressing the key. The balance will show “8888” for approx. 3 seconds and then change to “0”. Now it is ready for use. Important: If the display does not show 0, press the key. Only now (!) place object on the weighing pan.
7.4.2 Taring Switch the balance on by pressing the key, then wait for the “0” indication. Place the tare cup on the weighing plate and press the “0”. Now the weight of the cup is memorised internally. Fill the object into the cup, read the measuring value. key. Indication will go to By pressing the key after a weighing procedure, “0” will appear on the display again. The taring procedure can be repeated continuously, for instance when mixing several components.
7.4.5 Unit change Switch the balance on by pressing the key, then wait for the “0” indication. The units set in the balance can be selected between the different units, by pressing the key Models: CM 60-2N / CM 150-1N / CM 320-1N / CM 1K1N Gramm * Tael Taiwan Tola * Factory setting Display Conversion factor 1g= g tlt tol 1 0.02667 0.08573 Display Conversion factor 1g= g ct 1 5 Display Conversion factor 1g= g gn 1 15.
7.5 Rear illuminated display To choose the backlight mode, please follow the below instruction for the setting: Turn off the balance. Press and hold the key, then press the key one time; after that release the key. Display shows„bl“. Press the key to confirm the entry of the backlight mode. Press the key to switch among the modes: Display Mode Function „bl“ on Backlight on Contrasting display which can also be read in the dark.
7.6 Calculator (not included in models CM50-C2N and CM500-GN1) KERN CM Calculator ON/AC Switch ON /All clear + Addition - Subtraction ÷ Division x Multiplication = Result % Percent M+ Memory plus M- Memory minus MC Memory clear MR Independent Memory recall +/- Sign change √ Square Root , Comma C Clear Notice: Data exchange between balance and pocket calculator is not possible. 8 Maintenance, upkeep, disposal 8.
9 Troubleshooting The balance should be switched off for a short time following an interruption in the programme sequence . It is then necessary to repeat the weighing process from the beginning. Help: Interruption Possible cause Weight display is not illuminated. • The balance is not switched on.
