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Related Manuals for KERN AEJ_N
Summary of Contents for KERN AEJ_N
- Page 1 KERN & Sohn GmbH Ziegelei 1 Tel: +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 Analytical balance KERN AEJ_N/AES_N Version 2.1 03/2013 AEJ_N/AES_N-BA-e-1321...
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Page 2: Table Of Contents
KERN AEJ_N/AES_N Version 2.1 03/2013 Operating instructions Electronic analytical balance Contents TECHNICAL DATA ..................... 5 Dimensions ..........................7 APPLIANCE OVERVIEW ................... 8 Display and Keyboard Summary .................... 9 2.1.1 Numeric entry ........................10 BASIC INSTRUCTIONS ................... 11 Proper use ..........................11 Improper Use .......................... - Page 3 Hide last decimal place ......................44 10.5 Dispensing mode “RAPID” ....................45 FURTHER USEFUL FUNCTIONS “P7 OTHER“ .......... 46 11.1 Display background illumination ..................46 11.2 Acoustic signal for key operation ..................47 11.3 Print weighing settings ......................48 AEJ_N/AES_N-BA-e-1321...
- Page 4 Technical data ......................... 71 14.2 Interface cable ........................72 14.3 Menu settings “P4 PRINT“ ....................73 14.4 Printout examples (KERN YKB-01N) ..................78 14.5 Output log ..........................79 14.5.1 Issue after pressing the PRINT ´button ................79 14.5.2 PC controlled output ......................80 14.5.3...
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Page 5: Technical Data
+18° C to +30° C ambient condition Humidity of air 30 ~ 80 % relative (not condensing) Input voltage 110 - 230 V - 240 V AC‚50 Hz Power pack 13.8 V secondary voltage Interface RS 232C Underfloor weighing Hooks device AEJ_N/AES_N-BA-e-1321... - Page 6 +18° C to +30° C ambient condition Humidity of air 30 ~ 80 % relative (not condensing) Input voltage 110 - 230 V - 240 V AC‚50 Hz Power pack 13.8 V secondary voltage Interface RS 232C Underfloor weighing Hooks device AEJ_N/AES_N-BA-e-1321...
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Page 7: Dimensions
1.1 Dimensions AEJ_N/AES_N-BA-e-1321... -
Page 8: Appliance Overview
2 Appliance overview 1. Windshield 2. Weighing pan 3. Display 4. Keyboard 5. Levelling screw 6. Bubble level 7. Terminal power supply unit 8. RS232 interface 9. Not documented AEJ_N/AES_N-BA-e-1321... -
Page 9: Display And Keyboard Summary
• Activate operating mode • Scroll backwards in menu • Switch-over weighing unit • Scroll forward in menu • Calculate weighing data via interface • Confirm / save • Taring • Zeroing • Exit menu / Return to weighing mode AEJ_N/AES_N-BA-e-1321... -
Page 10: Numeric Entry
2.1.1 Numeric entry Description Function Increase flashing digit Navigation button Decrease flashing digit Navigation button Digit selection to the right Navigation button Navigation button Digit selection as per Confirm entry Navigation button Cancel input AEJ_N/AES_N-BA-e-1321... -
Page 11: Basic Instructions
In KERN's accredited DKD calibration laboratory test weights and balances may be calibrated (return to the national standard) fast and at moderate cost. AEJ_N/AES_N-BA-e-1321... -
Page 12: Basic Safety Precautions
4.1 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. All language versions contain a non-binding translation. The original German is binding. - Page 13 Prior to dispatch disconnect all cables and remove loose/mobile parts. Reattach possibly supplied transport securing devices. Secure all parts such as the glass wind screen, the weighing platform, power unit etc. against shifting and damage. AEJ_N/AES_N-BA-e-1321...
- Page 14 AEJ_N/AES_N-BA-e-1321...
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Page 15: Unpacking, Setup And Commissioning
Open package, take out the appliance and accessories. Verify that there has been no damage and that all packing items are present. 6.2.1 Scope of delivery / serial accessories • Balance, see chap. 2 • Mains adapter • Operating instructions • Protective cover AEJ_N/AES_N-BA-e-1321... -
Page 16: Placing
Check levelling regularly 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. AEJ_N/AES_N-BA-e-1321... -
Page 17: Turning On The Power
Before connecting or disconnecting of additional devices (printer, PC) to the data interface, always disconnect the balance from the power supply. With your balance, only use accessories and peripheral devices by KERN, as they are ideally tuned to your balance. -
Page 18: Adjustment
• Adjustment can only be carried out when the weighing pan is free of objects. Any loads remaining on the weighing pan will be indicated by error message Er1Hi. • You can cancel the adjustment by pressing the TARE-key. AEJ_N/AES_N-BA-e-1321... -
Page 19: Automatic Adjustment Using Internal Weight (Aej Only)
After a further 5 minutes the automatic adjustment will restart and [ CAL 30 ] appears. You may interrupt the adjustment process several times. However, keep in mind that an interruption of the adjustment may lead to incorrect weighing results. AEJ_N/AES_N-BA-e-1321... - Page 20 After the time interval (selectable from 1-12 hours) set in the menu (P1.5 CALt) has passed, the weighing scale will indicate the pending adjustment by displaying (indicator ►): In weighing scales with type approval certificate • menu item P1.5 CALt is locked. • Adjustment takes place every 3 hours AEJ_N/AES_N-BA-e-1321...
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Page 21: Menu Settings
Starting internal adjustment manually Press F-key three times • Ensure that there are no objects on the weighing pan. • You can cancel adjusting by pressing the TARE-key. • After successful adjustment the balance automatically returns to weighing mode. AEJ_N/AES_N-BA-e-1321... -
Page 22: P1.2 Ecal - External Adjustment (Aes Models)
Adjustment will be complete when the display is showing UNLOAD; remove the adjustment weight. After successful adjustment the balance automatically returns to weighing mode. • Return to weighing mode, see chap. 8.2. • This function is locked in weighing scales with type approval certificate. AEJ_N/AES_N-BA-e-1321... -
Page 23: P1.3 Tcal - Adjustment Test
The test is carried out automatically. The result is shown on the display and, if an optional printer is connected, a printout will be issued via the RS 232 interface. + Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321... - Page 24 AES models Here, deviation from the last adjustment is determined. This is only a check, i.e. no values are changed. + Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321...
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Page 25: P1.4 Acal - Start Criteria Of The Automatic Internal Adjustment (Aej Only)
The start of time controlled automatic adjustment depends on the setting “P1.5 CALt” both Start automatic Adjustment is temperature and time dependent + Return to weighing mode, see chap. 8.2. This function is locked in weighing scales with type approval certificate. AEJ_N/AES_N-BA-e-1321... -
Page 26: P1.5 Calt- Time Controlled Automatic Adjustment (Aej Only)
7.2.5 P1.5 CALt– time controlled automatic adjustment (AEJ only) This function is applied to define the time interval (selectable from 1-12 hours) for automatic adjustment. + Return to weighing mode, see chap. 8.2. This function is locked in weighing scales with type approval certificate. AEJ_N/AES_N-BA-e-1321... -
Page 27: P1.5 Calr- Enable/Disable Issue Of Adjustment Protocol
This function enables automatic log issue after each adjustment. These logs may be issued by using an optional printer. To define the content of the protocol go to menu item “P2 GLP”, s. chap. 12 Adjustment protocol disabled Adjustment protocol enabled + Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321... -
Page 28: Verification
If the seal mark is destroyed, verification looses its validity. Please observe all national laws and legal regulations. In Germany a re- verification will be necessary. AEJ_N/AES_N-BA-e-1321... - Page 29 The weighing result of the balance is outside the error limit. Therefore, • in regular intervals load balance with known test weight (ca. 1/3 of the max. load) and compare with displayed value. The reverification deadline has been exceeded. • AEJ_N/AES_N-BA-e-1321...
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Page 30: Menu
YES/no [continuous output standard weighing unit] P4.3 Cntb YES/no [continuous output currently set weighing unit] P4.4 rEPL YES/no [manual (press key) or automatic output] P4.5 PStb YES/no [output stable/instable weighing values] P4.6 000.0000 [input minimal weight for automatic output] AEJ_N/AES_N-BA-e-1321... -
Page 31: Operating Modes
YES/no [determination density “solids”] P6.7 d_Li YES/no [determination density “liquids”] P6.8 Pi_t YES/no [Pipette calibration] P6.9 Fill YES/no [Dispensing] P7 othEr [additional useful functions] P7.1 On/Aut/OFF Display background illumination P7.2 bEEP On/OFF [touch tone] P7.3 PrnS [printout “weighing parameters”] AEJ_N/AES_N-BA-e-1321... -
Page 32: Navigation In The Menu
Use the cursor key to scroll down. Use the cursor key to scroll up. Confirm setting / back Either confirm by pressing the PRINT-key or reject by to menu pressing the TARE-key. Save / back to see chap. 8.2 weighing mode AEJ_N/AES_N-BA-e-1321... -
Page 33: Exit Menu / Back To Weighing Mode
8.2 Exit menu / back to weighing mode. Press the TARE-key repeatedly until “SAVE?” is displayed. Any changes carried out are stored by pressing the PRINT key. To cancel changes, press the TARE key. Then the balance returns automatically into the weighing mode. AEJ_N/AES_N-BA-e-1321... -
Page 34: Weighing Functions P6 Func
Place the goods to be weighed and close the wind screen doors Wait until the stability display appears ( Read weighing result. When an optional printer is connected, the weighing value can be edited. Printout example (KERN YKB-01N): Date : 23/07/12 Time : 09:16 User Id... -
Page 35: Standard Weighing Unit
Press the UNIT-key repeatedly until the desired weighing unit is shown. [g] → [mg] → [ct] → [oz] → [ozt] → [dwt] → [t] → [mom]→ [G] → [g] In balances without type-approval certificate selection is restricted to options [g] → [mg] → [ct] AEJ_N/AES_N-BA-e-1321... -
Page 36: Weighing Units Switch-Over
• To delete the stored tare value, remove load from weighing pan and press TARE. • The taring process can be repeated any number of times. The limit is reached when the whole weighing range is exhausted. AEJ_N/AES_N-BA-e-1321... -
Page 37: Underfloor Weighing
(danger of breaking) • Always ensure that there are no persons, animals or objects that CAUTION might be damaged underneath the load. After completing the underfloor weighing the opening on the bottom of the balance must always be closed (dust protection). AEJ_N/AES_N-BA-e-1321... -
Page 38: Selecting The Operating Mode
ALL for a setting. For selection of accessible operating modes, see chap. 9.7.1. If you wish to access only one operating mode via the key, select it directly via the UNIT key. (For instance PcS for piece counting) AEJ_N/AES_N-BA-e-1321... - Page 39 Confirm selection by pressing the PRINT-key; weighing scale will return to menu P6.1 FFun. Either For how to return to weighing mode after selecting an operating mode, see chap. 8.2 For how to enable accessible operating modes after selecting ALL, see chapter 9.7.1 below. AEJ_N/AES_N-BA-e-1321...
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Page 40: Selecting Accessible Operating Modes
YES: turned on turned off Please repeat this sequence of operations for any other operating mode available. Confirm your selection by pressing the PRINT-key; balance will return to menu. Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321... -
Page 41: Balance Settings "P3 Read
Fast - The balance reacts quickly and in a sensitive manner, quiet set-up location. Confirm your selection by pressing the PRINT-key; weighing scale will return to menu. Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321... -
Page 42: Rest Position Control Display - Adaptation Of Weighing Speed
Rest position control fast Very quiet setup location Rest position control accurate Unbalanced installation site Confirm your selection by pressing the PRINT-key; weighing scale will return to menu. Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321... -
Page 43: Auto Zero
When apportioning involves small variations of weight, it is advisable to switch off this function. AutoZero turned on AutoZero turned off Confirm your selection by pressing the PRINT-key; weighing scale will return to menu. Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321... -
Page 44: Hide Last Decimal Place
Confirm your selection by pressing the PRINT-key; weighing scale will return to menu. Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321... -
Page 45: Dispensing Mode "Rapid
RAPID = YES Parameters for dispensing are set automatically. The weighing scale automatically works at increased weighing speed. Confirm your selection by pressing the PRINT-key; weighing scale will return to menu. Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321... -
Page 46: Further Useful Functions "P7 Other
Aut = Backlighting automatically switched off 10 seconds after achieving stable weighing value. OFF = background illumination switched off. Confirm your selection by pressing the PRINT-key; weighing scale will return to menu. Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321... -
Page 47: Acoustic Signal For Key Operation
11.2 Acoustic signal for key operation On = acoustic signal turned on OFF = acoustic signal turned off Confirm your selection by pressing the PRINT-key; weighing scale will return to menu. Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321... -
Page 48: Print Weighing Settings
11.3 Print weighing settings All weighing scale settings are issued via the RS232 interface. Confirm your selection by pressing the PRINT-key; weighing scale will return to menu. Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321... -
Page 49: Glp/Iso Log "P2 Glp
8 digits P2.3 Ptin P2.4 PdAt P2.5 PuS P2.6 PPrJ P2.7 Pid P2.8 PFrn Definition of a standard log: • P2.1 USr – Enter user name Press the UNIT-key and the next menu item “P2.2 PrJ“, will appear. AEJ_N/AES_N-BA-e-1321... - Page 50 (the respective (the respective active active position flashes) position flashes) • Decreasing the value for selected numeral or number Overview data input / data output: Examples: Data input Data output 1. Upper case characters OP1_WILK 2. Lower case characters op1_wilk AEJ_N/AES_N-BA-e-1321...
- Page 51 Use the UNIT-key to select among the following settings: = Do not display project = Display project Confirm settings by pressing the PRINT key. Weighing balance returns to menu. Press the UNIT-key and the next menu item „P2.7 PId“ will appear. AEJ_N/AES_N-BA-e-1321...
- Page 52 :180151 19.3406 g 19.3406 g ---------------------------------------- Using broken line at Without broken lines protocol begin and end. Confirm your selection by pressing the PRINT-key; weighing scale will return to menu. Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321...
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Page 53: Operation Modes
Numeric reference entry • Density determination solid matter <d_Co> • Density determination fluids <d_Li> • Pipette calibration <PiPEt> • Dosing <Fill> Calling operating modes (See also chap.9.7): The first function “F1 basic“ appears. Further functions are triggered with the help AEJ_N/AES_N-BA-e-1321... -
Page 54: Parts Counting
Press the UNIT-key to select the desired reference number of pieces, selectable options include 10, 20, 50 or free. • Reference piece number 10, 20 or 50 Confirm your selected reference number of pieces by pressing the PRINT-key (such as 20). AEJ_N/AES_N-BA-e-1321... - Page 55 Make reference Place as many pieces to add-up as required by the set reference piece number. Tare weighing container Confirm reference Remove reference weight. The balance is now in parts counting mode counting all units on the weighing pan. AEJ_N/AES_N-BA-e-1321...
- Page 56 If there is no load on the weighing plate when the PRINT-key is pressed, “Er5 outr“ will appear briefly on the display before the display of the balance returns automatically to weighing mode. Remove reference weight. The balance is now in parts counting mode counting all units on the weighing plate. AEJ_N/AES_N-BA-e-1321...
- Page 57 • Return to weighing mode AEJ_N/AES_N-BA-e-1321...
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Page 58: Weighing With Tolerance Range
The tolerance marker is only in operation during operating mode tolerance weighing; it is otherwise not visible. The tolerance marker provides the following information: 0.0000 � Goods to be weighed below tolerance limit Goods to be weighed within tolerance range Goods to be weighed above tolerance limit AEJ_N/AES_N-BA-e-1321... - Page 59 Select the digit to be changed by pressing the F-key; each digit currently active will be flashing. Select the digit by pressing the UNIT-key Confirm by pressing the PRINT key. The display for entering the upper limit value will appear. AEJ_N/AES_N-BA-e-1321...
- Page 60 Note: If invalid values are entered such as lower tolerance limit greater than upper tolerance limit, the balance will issue the error message “Er8 outr“ and return automatically to weighing mode. • Return to weighing mode AEJ_N/AES_N-BA-e-1321...
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Page 61: Percent Determination
100 % equals placing. Confirm by pressing the PRINT-key and the weight will be adopted as reference (100%). Remove reference weight; from here the weight of load is shown in percent based on the reference weight. AEJ_N/AES_N-BA-e-1321... -
Page 62: Numeric Entry Of Reference Weight (Function F4 Prcb)
Select the digit by pressing the UNIT key Confirm by pressing the PRINT key From now on the weight of the load will be shown in percent based on the reference weight. AEJ_N/AES_N-BA-e-1321... - Page 63 Return to weighing mode: Press repeatedly. AEJ_N/AES_N-BA-e-1321...
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Page 64: Dosing
To disable the setting “P6 Func P6.1 FFun All” set function “F9 Fill” to “n”; see chap. 9.7 • Enabling dispensing mode Press repeatedly. Indicator displays the current dispensing mode. • Return to weighing mode Press repeatedly. Indicator expires. AEJ_N/AES_N-BA-e-1321... -
Page 65: Determining The Density Of Solid Matter And Fluids
13.5 Determining the density of solid matter and fluids For determining density we recommend that you work with the optionally available density kit KERN AES-A01N. This contains all the accessories and aids required for easy and precise density determination. For instructions please see the operating instructions enclosed with the density kit. -
Page 66: Pipette Calibration
For devices with variable volume, the following three volumes need to be tested: The lower limit for the effective volume or 10 % of the nominal volume [µl], depending on whichever is the larger. About 50 % of the nominal volume [µl] Nominal volume [µl] AEJ_N/AES_N-BA-e-1321... -
Page 67: Carry Out Series Of Measurements For Test Volume V
Repeat this test cycle (steps 1 -3) as often as set in “Set n” (see chap. 13.6.1). After the last test cycle has been confirmed, a display announcing the start of the second series of measurements “P2 V ”, followed by Place 1, see chap. 13.6.3, will appear. AEJ_N/AES_N-BA-e-1321... -
Page 68: Carry Out Series Of Measurements For Test Volume V
Repeat this test cycle (steps 1 -3) as often as set in “Set n” (See chap. 13.6.1). After the last test cycle has been confirmed a display announcing the start of the third series of measurements “P2 V ”, followed by Place 1, see chap. 13.6.4, will appear. AEJ_N/AES_N-BA-e-1321... -
Page 69: Carry Out Series Of Measurements For Test Volume V
Repeat this test cycle (steps 1 -3) as often as set in “Set n” (See chap. 13.6.1). After the last test cycle has been confirmed by pressing the PRINT-key a protocol will be issued via the RS232 interface. See printout example below. AEJ_N/AES_N-BA-e-1321... - Page 70 The lower limit for the effective volume or 10 % of the nominal volume [µl], depending on whichever is the larger. About 50 % of the nominal volume [µl] Nominal volume [µl] Arithmetic mean from measurement series Systematic measurement deviation Standard Deviation AEJ_N/AES_N-BA-e-1321...
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Page 71: Data Output Rs 232 "P4 Print
• Use a suitable cable to connect the display unit to the interface of the printer. Faultless operation requires an adequate KERN interface cable. • Communication parameters (baud rate, bits and parity) of display unit and printer must match. -
Page 72: Interface Cable
14.2 Interface cable PC 25 poles Balance PC 9 poles Balance Balance Printer Balance 2 (RxD) 3 (TxD) 4 (DTR) 5 (GND) 6 (DSR) 7 (RTS) 8 (CTS) AEJ_N/AES_N-BA-e-1321... -
Page 73: Menu Settings "P4 Print
Input minimum weight for automatic output: Weighing value issued automatically if current weighing value exceeds entered minimum value. The next weighing value will not be issued unless the weighing value has meanwhile dropped below the entered weighing value. Factory settings are marked by *. AEJ_N/AES_N-BA-e-1321... - Page 74 1. Baud rate Confirm your selection by pressing the PRINT-key; weighing scale will return to menu. Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321...
- Page 75 Confirm your selection by pressing the PRINT-key; balance will return to menu. Return to weighing mode, see chap. 8.2. 3. Continuous output in current weighing unit Confirm your selection by pressing the PRINT-key; weighing scale will return to menu. Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321...
- Page 76 Confirm your selection by pressing the PRINT-key; balance will return to menu. Return to weighing mode, see chap. 8.2. 5. Set output stable/instable weighing values Confirm your selection by pressing the PRINT-key; balance will return to menu. Return to weighing mode, see chap. 8.2. AEJ_N/AES_N-BA-e-1321...
- Page 77 6. Set minimum weight for automatic output AEJ_N/AES_N-BA-e-1321...
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Page 78: Printout Examples (Kern Ykb-01N)
14.4 Printout examples (KERN YKB-01N) Stable weighing value 19.9994 g Instable weighing value 29.6343 g Negative weighed value 19.9997 g Positive weighing value 19.9994 g Overload Percent determination 24.995 % Parts counting 10 pcs AEJ_N/AES_N-BA-e-1321... -
Page 79: Output Log
Stability display Blank character for stable value ? For instable value ^ for excess load v for underload Signs Blank character for positive value Minus sign for negative value Weight value 9 signs, right justified Unit 3 signs, left justified AEJ_N/AES_N-BA-e-1321... -
Page 80: Pc Controlled Output
Weight value 9 signs, right justified Unit 3 signs, left justified 14.5.3 Output of date/time The display of date and time can be enabled under menu item “P2 GLP” (see chap. 12): PdAt – yes • Ptin - yes • AEJ_N/AES_N-BA-e-1321... -
Page 81: Remote Control Instructions
Stop continuous output in standard weighing unit CU1 CR LF Start continuous output in current weighing unit U0 CR LF Stop continuous output in current weighing unit In the case of faulty entries the weighing balance generates feedback message “ES CR LF”. AEJ_N/AES_N-BA-e-1321... -
Page 82: 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 83: Instant Help
• Severe temperature variations in the room or the Automatic adjustment carried out frequently. instrument No data transfer between • Communication settings are wrong. printer and balance. • Menu item is locked for models with type approval The menu setting cannot be changed. certificate. AEJ_N/AES_N-BA-e-1321... -
Page 84: Error Messages
<= 0, Reference weight = 0 Er7 tout Disconnecting time too short Entry exceeding permitted range Er8 outr for instance during tolerance control: entry upper limit<lower limit Er9 Lock Function blocked Er10 cal Adjustment error e.g. incorrect adjustment weight AEJ_N/AES_N-BA-e-1321... -
Page 85: Declaration Of Conformity
EN 61010-1: 2010 Datum 26.03.2013 Signatur Date Signature Ort der Ausstellung 72336 Balingen Albert Sauter Place of issue KERN & Sohn GmbH Geschäftsführer Managing director KERN & Sohn GmbH, Ziegelei 1, D-72336 Balingen, Tel. +49-[0]7433/9933-0 Fax +49-[0]7433/9933-149, E-Mail: info@kern-sohn.com, Internet: www.kern-sohn.com AEJ_N/AES_N-BA-e-1321...