Table of Contents
Related Manuals for KERN EMB-V
Summary of Contents for KERN EMB-V
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Page 1: Operating Instructions
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 instructions Density Scale KERN EMB-V Version 2.0 01/2013 EMB-V-BA-e-1320... -
Page 2: Table Of Contents
8.1.1 Influencing magnitudes and error sources ................18 Density determination of solids .................19 8.2.1 Density determination while using the density kits KERN YDB-01 or YDB-02 ......19 8.2.2 Density determination using the suspended weighing device ..........24 8.2.3 Density determination of solid material with a density of less than 1 g/cm ...... - Page 3 Menu overview ......................40 13.3 Description of individual menu items .................41 13.4 Interface parameters ....................44 Data output RS 232 C .................. 45 Service, maintenance, disposal ..............47 15.1 Clean ........................47 15.2 Service, maintenance ....................47 15.3 Disposal ........................47 Instant help ....................48 EMB-V-BA-e-1210...
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Page 4: Technical Data
170 x 240 x 39 Weighing plate mm Ø 82 Ø 150 9V block Battery operation (optional) Operating time: 12 h Mains adapter 100 mA / 9V AUTO-OFF-function 3 min. (With battery operation) Underfloor weighing Standard hooks Interface RS-232 standard EMB-V-BA-e-1210... -
Page 5: Appliance Overview
2 Appliance overview KERN EMB 200-3V KERN EMB 2000-2V bottom side Weighing pan RS 232 Display 5 Battery compartment Keyboard 6 Underfloor weighing EMB-V-BA-e-1210... -
Page 6: Kern Emb 200-3V With Installed Density Kit Kern Ydb-01
2.1 KERN EMB 200-3V with installed density kit KERN YDB-01 Upper sample dish of the immersion basket Weighing plate "density kit" Beaker Lower sample dish of the immersion basket Platform EMB-V-BA-e-1210... -
Page 7: Kern Emb 2000-2V With Installed Density Kit Kern Ydb-02
2.2 KERN EMB 2000-2V with installed density kit KERN YDB-02 Upper sample dish of the immersion basket Beaker Lower sample dish of the immersion basket Platform Weighing plate "density kit" EMB-V-BA-e-1210... -
Page 8: Keyboard Overview
• Scroll forward in menu • Weighing in air • Weighing in liquid 2.3.1 Numeric entry Function Dialing the digits to the right, each active site flashes. Each time you press the button, the numerical value of the flashing digit increases. Confirm entry EMB-V-BA-e-1210... -
Page 9: Basic Information (General)
• The balance may only be used according to the described conditions. Other areas of use must be released by KERN in writing. 3.3 Warranty Warranty claims shall be voided in case •... -
Page 10: Monitoring Of Test Resources
In KERN's accredited DKD calibration laboratory test weights and balances may be calibrated (return to the national standard) fast and at moderate cost. 4 Basic Safety Precautions 4.1 Pay attention to the instructions in the Operation Manual... -
Page 11: Unpacking, Setup And Commissioning
Verify that there has been no damage and that all packing items are present. Scope of delivery / serial accessories: • Balance, see chap. 2.0 • Mains adapter • Flush-mounted hook • Operating instructions EMB-V-BA-e-1210... -
Page 12: Mains Connection
6.3 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. 6.4 Battery operation (optional) Remove the battery compartment cover on the underside of the scale and connect a 9 V block battery. -
Page 13: Adjustment
Press and hold down longer, the display shows "CAL" briefly. Then the display shows the exact size of the adjustment weight (See chapter 13.3). During this display, set the adjustment weight in the middle of the weighing plate EMB-V-BA-e-1210... - Page 14 An error during adjustment or the use of an incorrect adjusting weight will result in an error message „CAL E“. Repeat adjustment. Keep the adjustment close to the balance. Daily control of the weighing exactness is recommended for quality-relevant applications. EMB-V-BA-e-1210...
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Page 15: Basic Operation
Press ON/OFF button, the display disappears Weighing Place goods to be weighed on balance. Wait for stability display [g] Read weighing result. If the weighing object is heavier than the weighing range, the display shows the error message "E". EMB-V-BA-e-1210... - Page 16 After removing the weighing container, the weight of the weighing container appears as negative display. The tare weight is saved until it is deleted. Delete tare Unload the balance and press the TARE button, the zero display appears. EMB-V-BA-e-1210...
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Page 17: Density Determination
] the density of the solid [ ρ ] is calculated as follows: ρ = ρ ρ = density of sample A = weight of the sample in air B = weight of the sample in the aid liquid ρ = density of the aid liquid EMB-V-BA-e-1210... -
Page 18: Influencing Magnitudes And Error Sources
8.1.1 Influencing magnitudes and error sources Air pressure Temperature Volume deviation of the sinker Surface tension of the liquid Air bubbles Immersion depth of the sample dish of sinker Porosity of the solid EMB-V-BA-e-1210... -
Page 19: Density Determination Of Solids
YDB-02 For the density determination, we recommend to work with the optional density kit KERN YDB-01 or YDB-02. This contains all the necessary structures and resources for a comfortable and precise determination of the density. • If needed, perform necessary adjustment prior to the installation of the density kit, see chapter 6.6. - Page 20 Abb.: Installed density kit KERN YDB-02 EMB-V-BA-e-1210...
- Page 21 Immerse thermometer Heat the liquid, the instruments or the displacement body until the temperature is constant. Observe the warm-up time of the balance. For more information, please refer to the operating manual supplied with the density kit. EMB-V-BA-e-1210...
- Page 22 (See density table chapter 10). 8. Press and the last digit flashes. to increase the numeric value of the flashing cipher. to move the number selection to the right, the respective active position flashes. 10. Confirm input by (example water at 23°C) EMB-V-BA-e-1210...
- Page 23 (example) The scale determines the density of the solid and subsequently displays the result. (example) When connecting an optional printer, press to print the result. Printout example KERN YKB-01N: D-REF: 0.9976 g/cm^3 Density aid liquid Result (density of the sample) D-RSL: 8.0409 g/cm^3...
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Page 24: Density Determination Using The Suspended Weighing Device
Place weighing balance over an opening. Attach the suspension device. Fill the aid liquid into a glass beaker. Heat the liquid, the instruments or the sinker until the temperature is constant. Observe the warm-up time of the balance. EMB-V-BA-e-1210... - Page 25 Press and the last digit flashes. Use to increase the numeric value of the flashing cipher. to move the number selection to the right, the respective active position flashes. Confirm input by (example water at 23°C) EMB-V-BA-e-1210...
- Page 26 The scale determines the density of the solid. Wait until the result is displayed. (example) When connecting an optional printer, press to print the result, see printout example chapter 8.2.1. Using the balance returns into the weighing mode. EMB-V-BA-e-1210...
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Page 27: Density Determination Of Solid Material With A Density Of Less Than 1 G/Cm 3
Method 2: Here the sample is not placed upon, but under the sample dish. Here, the immersion basket for floating solids is to be used. ensity kit nstalled immersion basket for floating solid matter. Fig.: D KERN YDB-01 with i EMB-V-BA-e-1210... - Page 28 Abb.: Density kit KERN YDB-02 with installed immersion basket for floating solid matter. Activate function, see chap. 8.2.1. Input parameter for aid liquid, see chapter 8.2.1. Density determinations, see chapter 8.2.1, in step 9 enter the sample under the lower sample dish.
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Page 29: Determining Density Of Liquids
8.2.1. Or quickly and inexpensively in our calibration laboratory. For further information please go to KERN- Hompage (www.kern-sohn.com). 8.3.1 Density determination while using the density kits KERN YDB-01 or YDB-02. Install the density kit, see chapter 8.2.1 Mode to call up density determination of liquids. - Page 30 Make sure that the sinker is at least 1 cm submerged and that, if possible, no air bubbles adhere to it. Press and for a short time the weight of the sinker in the test liquid is displayed. (example) The scale determines the density of the liquid and then displays the result. (example) EMB-V-BA-e-1210...
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Page 31: Density Determination Using The Suspended Weighing Device
When connecting an optional printer, pressing of will print the result. Printout example KERN YKB-01N: Sinker density D-REF: 8.0409 g/cm^3 D-RSL: 0.9984 g/cm^3 Result (Density of the test liquid) Weight of sinker in air W-AIR: 020.000 g W-LDQ: 017.432 g... - Page 32 (step 7). Enter the density of the sinker. 4. Press and the last digit flashes. 5. Use to increase the numeric value of the flashing cipher. to move the number selection to the right, the respective active position flashes. EMB-V-BA-e-1210...
- Page 33 The scale determines the density of the liquid and then displays the result. (example) When connecting an optional printer, pressing of will print the result, see printout example chapter 8.3.1. Press , the balance will return to weighing mode. For further measurements start at step 2. EMB-V-BA-e-1210...
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Page 34: Preconditions For Precise Measurements
As a result, part of the suspension bracket of the sifting bowl will also be immersed causing buoyancy to increase. As a consequence the weight of the specimen in the fluid will drop. Samples that change the volume or assimilate fluid are unsuitable for measurement. EMB-V-BA-e-1210... -
Page 35: Liquids
When changing the ambient temperature or location, an adjustment of the balance is necessary. Hereto, remove the density kit and carry out an adjustment with the standard weighing plate (See chapter 6.6). EMB-V-BA-e-1210... -
Page 36: Density Table For Fluids
0.9976 0.7867 0.7880 0.9973 0.7859 0.7870 0.9971 0.7851 0.7870 0.9968 0.7842 0.7861 0.9965 0.7833 0.7852 0.9963 0.7824 0.7842 0.9960 0.7816 0.7833 0.9957 0.7808 0.7824 0.9954 0.7800 0.7814 0.9951 0.7791 0.7805 0.9947 0.7783 0.7896 0.9944 0.7774 0.7886 0.9941 0.7766 0.7877 EMB-V-BA-e-1210... -
Page 37: Uncertainty Of Measurement For Density Determination Of Solids
10. When using a balance with a readability of 0.001 g, divide the numbers through 10. Reading example for table: In a balance with a resolution of 0.001 g and a sample with a weight of 10 g, whose density is 5 g/cm , the display graduation is at 0.007 g/cm EMB-V-BA-e-1210... -
Page 38: User Instructions
However, check beforehand whether the sample is solvent-proof. In addition you must observe the applicable safety regulations when working with ethanol. To avoid corrosion, don't leave the density kit immersed in liquid for a long time. • EMB-V-BA-e-1210... -
Page 39: Menu
Each time you press the button, the next setting is displayed, see chapter 13.2 "Menu- Overview". How to save settings and to exit the menu Press the TARE key; balance will return to weighing mode. EMB-V-BA-e-1210... -
Page 40: Menu Overview
50.000 Select the adjustment weight 100.000 150.000 200.000* FiltEr SIo* slow / insensible Filter (See chapter 13.3) slow For adapting to the standard ambient conditions. fast/sensitive fast Reset to factory setting (see chap. 13.3) * = default setting EMB-V-BA-e-1210... -
Page 41: Description Of Individual Menu Items
Keep pressed in the weighing mode until [Pr] is displayed. Press repeatedly until "tr" is displayed. Acknowledge using , the current setting is displayed. Select desired settings by tr on Function activated tr off Function deactivated Acknowledge selection by EMB-V-BA-e-1210... - Page 42 [Pr] is displayed. Press repeatedly until "FiltEr" is displayed. Acknowledge using , the current setting is displayed. Select desired setting by SIo* slow / insensible fast/sensitive Acknowledge selection by EMB-V-BA-e-1210...
- Page 43 RST� Acknowledge using , the current setting is displayed. Select desired setting by Balance will be reset to factory setting. The balance keeps its individual setting Acknowledge selection by . The balance returns to weighing mode. EMB-V-BA-e-1210...
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Page 44: Interface Parameters
"bAUd" is displayed. BAUD� Acknowledge using , the current setting is displayed. Use to select the desired settings 9600 4800 2400 1200 19200 Acknowledge selection by . The balance returns to weighing mode. EMB-V-BA-e-1210... -
Page 45: Data Output Rs 232 C
• Use a suitable cable to connect the weighing balance to the interface of the printer/PC. Faultless operation requires an adequate KERN interface cable (optional). • Communication parameters (e.g. baud rate) of the scale and printer must match. - Page 46 10 11 12 13 14 15 16 17 CR LF e. Format in case of fault 10 11 12 13 14 15 16 17 CR LF f. Format for unstable values 10 11 12 13 14 15 16 17 CR LF EMB-V-BA-e-1210...
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Page 47: Service, Maintenance, Disposal
Spilled weighing goods must be removed immediately. 15.2 Service, maintenance The appliance may only be opened by trained service technicians who are authorized by KERN. Ensure that the balance is regularly calibrated, see chap. Testing instruments control. 15.3 Disposal ... -
Page 48: Instant Help
• The balance is on an uneven surface. • Great fluctuations in temperature. • Electromagnetic fields / static charging (choose different location/switch off interfering device if possible) Should other error messages occur, switch balance off and then on again. If the error message remains inform manufacturer. EMB-V-BA-e-1210...