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Table of contents
1
Technical data _________________________________________________ 69
2
Declaration of conformity _______________________________________ 70
3
Fundamental information (general)________________________________ 71
3.1
Designated use __________________________________________________ 71
3.2
Inappropriate use ________________________________________________ 71
3.3
Protective measures _____________________________________________ 71
3.4
Danger Information_______________________________________________ 71
3.5
Guarantee ______________________________________________________ 72
3.6
Monitoring the test substances_____________________________________ 72
4
Fundamental safety instructions__________________________________ 72
4.1
Observe notices in the operating manual ____________________________ 72
4.2
Training of personnel _____________________________________________ 72
5
Transport and storage __________________________________________ 72
5.1
Acceptance check _______________________________________________ 72
5.2
Packing ________________________________________________________ 72
6
Unpacking, installation and commissioning ________________________ 73
6.1
Installation Site, Location of Use ___________________________________ 73
6.1.1
Assembly ___________________________________________________________ 74
6.1.2
Scope of delivery _____________________________________________________ 75
6.2
Mains supply ____________________________________________________ 75
6.3
Connection of peripheral equipment ________________________________ 75
6.4
Connection of peripheral equipment ________________________________ 76
6.5
Initial Commissioning ____________________________________________ 76
6.5.1
Rear view ___________________________________________________________ 76
6.5.2
Display _____________________________________________________________ 77
7
Menu_________________________________________________________ 77
7.1
User principle of the menu control __________________________________ 80
7.2
Operating the balance with PS/2 keyboard ___________________________ 82
8
User menu ____________________________________________________ 83
MLS-BA-defsi-0713
KERN MLS
Version 1.3 04/2007
Instruction manual
Electronic Moisture Analyser
67
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Table of Contents
Related Manuals for KERN MLS 50-3IR160
Summary of Contents for KERN MLS 50-3IR160
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Page 1: Table Of Contents
KERN MLS Version 1.3 04/2007 Instruction manual Electronic Moisture Analyser Table of contents Technical data _________________________________________________ 69 Declaration of conformity _______________________________________ 70 Fundamental information (general)________________________________ 71 Designated use __________________________________________________ 71 Inappropriate use ________________________________________________ 71 Protective measures _____________________________________________ 71 Danger Information_______________________________________________ 71... - Page 2 8.1 Menu selection (weight calibration / temp. calibration etc.)_______________ 84 8.1.1 P1 Calibration (adjustment) _____________________________________________ 84 8.1.2 P2 GLP (Good laboratory practice) _______________________________________ 94 8.1.3 P3 Date/time_________________________________________________________ 96 8.1.4 P4 Readout__________________________________________________________ 98 8.1.5 P5 RS-232 _________________________________________________________ 100 8.1.6 P6 Printout _________________________________________________________ 100 8.1.7 P7 General functions _________________________________________________ 107 Operator menu _______________________________________________ 108...
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Page 3: Technical Data
1 Technical data Data MLS 50-3IR160 MLS 50-3HA160 MLS 50-3HA250 2 Infrared radiators, 2 Halogen crystal 2 Halogen crystal 300 Watts each radiators, radiators, Radiator type 300 Watts each 300 Watts each Temperature range 50°C - 160°C 50°C - 160°C 50°C - 250°C... -
Page 4: Declaration Of Conformity
EN 61000-4-6 : 1999 EN 61000-4-11 : 1997 EN 55022 :2000 73/023/EEC (Low Voltage ) PN-EN 61010-1 :2004 Date: 20.12.2006 Signature: Gottl. KERN & Sohn GmbH management" Gottl. KERN & Sohn GmbH, Ziegelei 1, D-72336 Balingen, Tel. +49-[0]7433/9933-0,Fax +49-[0]7433/9933-149 MLS-BA-defsi-0713... -
Page 5: Fundamental Information (General)
The balance may only be used in compliance with the described guidelines. Varying areas of application/planned use must be approved by KERN in writing. 3.3 Protective measures The moisture analyzer may only be connected to a properly installed socket with protection conductor connection (PE). -
Page 6: Guarantee
For this purpose, the answerable user must define a suitable interval as well as the nature and scope of this check. Information is available on KERN’s home page (www.kern- sohn.com) with regard to the monitoring of balance test substances and the test... -
Page 7: Unpacking, Installation And Commissioning
6 Unpacking, installation and commissioning 6.1 Installation Site, Location of Use The balance is constructed in such a way that reliable weighing results can be achieved under normal application conditions. By selecting the correct location for your balance, you will be able to work quickly and precisely. -
Page 8: Assembly
6.1.1 Assembly Structure: Sample plate Extraction aid Dish holder Wind protection MLS-BA-defsi-0713... -
Page 9: Scope Of Delivery
The balance must be disconnected from the mains before connecting or disconnecting additional equipment (printer, PC) to or from the data interface. Only use KERN accessories and peripheral equipment with your balance. These have been ideally coordinated to your balance. -
Page 10: Connection Of Peripheral Equipment
The balance must be disconnected from the mains before connecting or disconnecting additional equipment (printer, PC) to or from the data interface. Only use KERN accessories and peripheral equipment with your balance. These have been ideally coordinated to your balance. -
Page 11: Display
6.5.2 Display Display during drying: The display during drying contains all the important Informationen: 1. Date 2. Time 3. Drying parameters: Profile /turn-off criteria / calculation method / output interval 4. Processing time 5. Target temperature 6. Processing temperature 7. Diagram representing the active status 19/09/03 Su szen ie Dryin g... - Page 12 User menu Calibration P1 01 External calibration P1 02 User calibration P1 03 Calibration test P1 04 Temperature calibration P1 05 Print report Yes/no P2 01 User P2 02 Project P2 03 Print-out time Yes/no P2 04 Print-out date Yes/no P2 05 User print-out Yes/no P2 06 Project print-out...
- Page 13 Operator menu Name Profile Standard Rapid Gentle Step Dry temperature Switch off Automatic 1 (change of mass less than 1 mg in 20 s) Automatic 2 (change of mass less than 1 mg in 50 s) Automatic 3 (change of mass less than 1 mg in 120 s) Automatic 4 (change of mass less than 1 mg in 180 s) Automatic 5 (change of mass less than 1 mg in 240 s) User defined (Δ...
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Page 14: User Principle Of The Menu Control
7.1 User principle of the menu control In the menu the settings of the balance can be modified and functions can be activated. This way, the balance can be adjusted to individual weighing requirements. To do so proceed as follows: Operation/display: Specification The overview for the operator menu is displayed... - Page 15 Confirmation of your settings Changes of the display during drying process There are 5 displays available 1. Drying method 2. Temperature of the heating chamber 3. Drying profiles 4. Result in %M; %D; %R – diagram 5. Lost weight Actuate -key again, a message will inquire whether you want to save the changes you made.
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Page 16: Operating The Balance With Ps/2 Keyboard
7.2 Operating the balance with PS/2 keyboard Using a PS keyboard will help you to enter numbers and texts faster and easier. Key allocation: Balance keyboard PS keyboard MLS-BA-defsi-0713... -
Page 17: User Menu
8 User menu Access to the user menu is carried out with the -key. The user menu has seven main menus, organized into the following sub-menus: Calibration Date/time Display RS-232 Edition Others Ext. Cal. User Data format Filter Baud rate Prinout.No. -
Page 18: Menu Selection (Weight Calibration / Temp. Calibration Etc.)
8.1 Menu selection (weight calibration / temp. calibration etc.) 8.1.1 P1 Calibration (adjustment) As the acceleration value due to gravity is not the same at every location on earth, each balance must be coordinated - in compliance with the underlying physical weighing principle - to the existing acceleration due to gravity at its place of location ( only if the balance has not already been adjusted to the location in the factory). - Page 19 Press -key; the display shows the measuring value of the adjusting weight. Now place the adjusting weight in the center of the weighing plate, press the -key. After successful adjustment the system will automatically return to the menu. -key can be used to cancel the adjustment. 29.12.04 Setup Setup...
- Page 20 Use the - key to confirm; the balance will automatically return to weighing mode We recommend: Carry out adjustment as close to the maximum load of the balance as possible. Information concerning the test weights is available at: http://www.kern-sohn.com MLS-BA-defsi-0713...
- Page 21 03 Calibration test Here, deviation from the last adjustment is determined. This is only a check, i.e. no values are changed. 29.12.04 Setup Setup Use the cursor (►) to select “03 Calibr. test“ Push -button Einstellungen Ensure that there are no objects on the weighing Calibration check Cear the pan plate.
- Page 22 04 Temperature calibration We recommend to check the temperature value of the MLS50-3 from time to time. Before the MLS50-3 should have cooled down at least 3 hours after the last heating phase. Clamp the temperature sensor (e.g. MLS-A03) in the respective support on the left side.
- Page 23 Carrying out with AUTO-Temperature calibration set MLS-A01 • Temperature calibration If you only need to measure the temperature within the MLS (only calibration), then carry out the procedure as described under chapter 6 "Temperature adjustment”, without connecting the RS 232 interface. Temperature adjustment •...
- Page 24 Press the key. A.OFF °---- alarm temp time . . 26 key. The automatic switch-off Press the function is now deactivated. °14 key until the temperature is Keep pressing the alarm temp time displayed. 25.2 °C alarm temp time 24.55 When measuring the temperature, press the key and hold until the following display flashes.
- Page 25 To adjust the temperature the following settings are required on the MLS moisture analyzer: When using the MLS-A01 temperature calibration set, the baud rate of the MLS must be set to 9600 as described below: Switch on the moisture analyzer Setup alibration P2 GLP...
- Page 26 Temperature calibration for the second point will then begin. After 14:59 minutes, temperature calibration for the second point is complete. The temperature value is adjusted and saved automatically. The balance returns to weighing mode automatically. Note: The colour of the measuring sensor must be identical to that of the sensor point (e.g. black sensor point - black measuring sensor)! Sensor point...
- Page 27 05 Print report In this menu item you can activate the function for printing your calibrating data Use the cursor (►) to select “05 “Print report “ 29.12.04 Setup Setup Press the -key; the current menu item blinks. Use the arrow keys (see chapter 7.1) to save your settings Print report deactivated Print report activated...
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Page 28: P2 Glp (Good Laboratory Practice)
8.1.2 P2 GLP (Good laboratory practice) Quality assurance systems require printouts of weighing results as well as of correct adjustment of the balance stating date and time and balance identification. The easiest way is to have a printer connected. Definition of a standard log: Operator Indication 29.12.04... - Page 29 All the settings to be printed must be activated with “1 / yes“. Example 1: Settings Print Time print Date: : 18.01.05 Date print Time: : 10:41:05 User print User: Miller Project print Project: : AB/007 ID print Balance no. : WL 041078 Last Cal.
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Page 30: P3 Date/Time
8.1.3 P3 Date/time In this menu item you can call up output and formatting of Set date and time. Operator indication 29.12.04 Setup alibration Menu item “P3 Date/time“ (see chapter 7.1) P2 GLP P3 D ate/Time P4 Redout P5 RS-232 Push -button Printouts... - Page 31 03 Time Setup 29.12.04 P 3 01 Date format D A/M O /Y R Use the cursor (►) to select menu item “03 Time“ Time format 2 4 S td . Time ******** F u n c tio n Date F u n c tio n ******** Disp.
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Page 32: P4 Readout
05/06 Disp. Time/Date Use the cursor (►) to select menu item Setup 29.12.04 “05/06 Disp. Time/date“ P 3 01 Date format D A/M O /Y R Time format 2 4 S td . Time ******** F u n c tio n Date F u n c tio n ********... - Page 33 02 Autozero Use the cursor (►) to select menu item 29.12.04 Setup Setup “02 Autozero“ Press the -key; the current menu item blinks. Use the - and -keys to select between the following settings: 0 Deviations from the Zero display are not automatically tared.
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Page 34: P6 Printout
8.1.5 P5 RS-232 In this menu item you can save your settings for the interface. Operator indication Setup alibration P2 GLP Call up menu item “P5 RS-232“ (see chapter 7.1) P3 D ate/Time P4 Redout P5 RS-232 Printouts Push -button Globals 01 –... - Page 35 01 Printout no. Use the cursor (►) to select menu item “01 Printout no.“ Press the -key; the current menu item blinks. Use the - and - keys to select between the following settings: 0 standard 1 1. Print 4 4. Print Use the -key to confirm your selection 8.1.6.1 Standard-data output (0 standard)
- Page 36 Example in drying mode: ------------------- Start drying------------------- Program nb : 1 Name: Floar 100 ⎬ Profiles standard Dry temp. : 120 °C Switch off : Automatical 3 Header Result : Moisture contents - %M Printout int : 30 s Target : None T.
- Page 37 Text input: • Max. 640 characters • 80 lines • 8 characters per line After each line confirm your text input using the -key. After complete text input press the -key; this is followed by an inquiry whether you want to save your setting. Use the -key to confirm (see chapter 7.1).
- Page 38 Print related variables Printout of 1 character “ / ”(i.e. in order to print out 1 character / two // have to be entered) CRLF (carriage return line feed) Beginning of line next line CR (carriage return) beginning of line LF (line feed) next line Tabulator Next “string”...
- Page 39 Parameter No. Text 20 String 10 21 String 11 22 String 12 23 String 13 24 String 14 25 String 15 Example 2: Kern & Sohn GmbH Datum: Zeit: Gewicht: *****Unterschrift:………. *** Aktueller Modus*** Parameter No. Text 26 String 16 &...
- Page 40 Examples for text input in drying mode Parameter selection: Header – 2. Printout (menu item P6 01 header no.) Line – 3. Printout (menu item P6 01 line no.) Footer – 4. Printout (menu item P6 01 footer no.) 2. Print 3.
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Page 41: P7 General Functions
8.1.7 P7 General functions Operator indication Setup Call up menu item “P7 Globals“ (see chapter alibration P2 GLP 7.1) P3 D ate/Time P4 Readout P5 RS-232 Printouts Push -button Globals 01 -12 Parameter selection 29.12.04 Einstellungen P 9 01 Password Prog.library Beep ********... -
Page 42: Operator Menu
9 Operator menu Execution of a moisture determination On the following pages the setting of the individual drying parameters and the execution of a drying process is described. Important drying parameters: Drying profiles (Temperature, time) Criteria for completing the drying process Selection displayed calculation result Output interval 9.1 Program library... - Page 43 As soon as you have activated the “program library“ you will be taken into the program library whenever you start a drying process. To deactivate it you must first switch the previously set selection “1=yes“ to “0= no“. In the library the following parameters can be stored: Sample name (e.g.
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Page 44: Select Heating Profile
9.2 Select heating profile The user can determine which heating profile is to be used. Operator Indication Explanation Actuate -key, use the cursor (►) to select the desired setting. Actuate the -key (Standard + temperature) The temperature is increased quickly and is kept at a constant level The temperature is increased quickly and... -
Page 45: Select Turn-Off Criterion
9.3 Select turn-off criterion The user can determine which turn-off criteria are to be used Operator Indication Actuate -key, use the cursor (►) to select the desired setting. The following turn-off criteria are available: Turn-off when weighing value changes < 1mg within 120s Turn-off when weighing value changes <... -
Page 46: Select Calculation Method
9.4 Select calculation method The user can determine which calculation method is displayed and printed (Printer). Operator indication Actuate -key, use the cursor (►) to select the desired setting. Define output data The following output data are available: Calculation according to proportion of moisture Calculation according to ATRO Calculation according to “... -
Page 47: Select Interval Of Data Output
9.5 Select interval of data output The user can determine which interval is used for data output. Operator indication Actuate -key, use the cursor (►) to select the desired parameter (e.g. “Printout interval“) Actuate the -key to open selection “Printout time“... -
Page 48: Enter Target Weight Of The Sample
9.6 Enter target weight of the sample The user can enter a target weight with tolerance range of the probe. This entry makes it possible to use identical sample sizes for each drying process. Operator Indication Actuate -key, use the cursor (►) to select the desired parameter (“sample“);... -
Page 49: Determine Correction Factor And Enter
9.7 Determine correction factor and enter Certain materials emanate more heat than is contributed from outside. In order to obtain a faultless measuring result a correction is necessary in such a case. This setting allows the user to correct differences between the set temperature of the moisture analyzer and the actually measured temperature on the test item. -
Page 50: Select Standard Setting
9.8 Select standard setting In this setting all sample values (temp., profile, etc..) are switched to values preset in MLS50-3. Operator Indication Actuate -key, use the cursor (►) to select the desired parameter (“standard“) Actuate the -key, selection “standard“ is activated Use the key to accept the standard setting for the sample;... -
Page 51: Set Drying Parameters
11 Set drying parameters If the program library is deactivated the parameters can be freely entered. 11.1 Select profile Operator Indication Turn on MLS 50-3 on main switch (rear side) Press the -key Actuate the -key, selection profiles is opened Actuate the -key, use the cursor (►) to select the desired parameter (e.g. -
Page 52: Select Finishing Criterion
11.2 Select finishing criterion Operator Indication Actuate the -key, use the cursor (►) to select the desired parameter (e.g. “Conclusion“) Actuate the - key, selection “Finishing criteria“ is opened The following turn-off criteria are available: Turn-off when weighing value changes < 1mg within 120s Turn-off when weighing value changes <... -
Page 53: Select Result Calculation
11.3 Select result calculation Operator Indication Actuate the -key, use the cursor (►) to select the desired parameter (e.g. “Result“) Actuate the - key, selection “Types of result representation “ is opened The following types of result representation are available: Calculation according to proportion of moisture Calculation according to ATRO Calculation according to “... -
Page 54: Select Output Interval
11.4 Select output interval Operator Indication Actuate the -key, use the cursor (►) to select the desired parameter (e.g. “Printout interval“) Actuate the - key to open selection “Printout time“ The following selection criteria are available: Printout after 1 second – 5 minutes selectable No printout Select and save settings: Use the... -
Page 55: Carry Out Drying
12 Carry out drying As soon as the drying parameters for the sample to be tested are set drying can start. Operator Indication Press the -key When using the sample plates the dish holder serves as a protection from burning or pollution Put on empty sample plate and actuate the Open lid Insert sample plate with sample... - Page 56 Close lid Drying will start automatically as soon as the balance is at rest. The processing parameters (target temperature, processing parameters, processing time, calculation method, etc. ) can be read on the display. key allows to select between the various calculation methods.
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Page 57: General Issues Concerning Moisture Analyzing
13 General issues concerning moisture analyzing 13.1 Application Wherever in a manufacturing process moisture is extracted from or added to products, fast determination of the moisture content is immensely important. For innumerable products the content of moisture is a quality feature as well as an important cost factor. -
Page 58: Drying Temperature
Sample distribution: Solids Distribute powdery and grainy samples evenly on the sample plate. Crush samples with coarse grains (ground, crush) Liquids Thinly spread viscous and sticky samples. It is recommended to uses glass fiber filters. Weight loss due to splashing can be avoided by covering the sample with a glass fiber filter. -
Page 59: Description Of The Heating Methods
13.5 Description of the heating methods There are 4 heating profiles: • standard • fast speed • soft • step drying Standard drying Standard drying is the most commonly used drying process. This type of heating is suitable for most substances. Soft drying Soft drying is intended for substances that do not tolerate heating by means of heating lamps. -
Page 60: Application Table (Recommendations/ Reference Values)
13.6 Application table (recommendations/ reference values) Prepare standard sample: If necessary, crush sample and spread evenly in the aluminum dish. Prepare special samples: For sensitive samples or materials that are difficult to spread (e.g. mercury) a glass fiber filter may be used. Spread sample evenly on glass fiber filter and cover with a second glass fiber filter. -
Page 61: Data Output
14 Data output Pin allocation of the balance exit plug (front view): Pin 2: Receive data Pin 3: Transmit data Pin 5: Signal ground Interface cables: Balance printer 3 (TxD) 1 (RxD) 5 (GND) 3 (GND) 7 -8 clench Balance - PC 9-pole 2 (RxD) 3 (TxD) 3 (TxD) -
Page 62: Remote Commands
14.1 Remote commands Commands function R CR LF Reset to factory setting – reset Command to call up the values of the balance PC CR LF Measuring value stable S CR LF Measuring value instable SI CR LF Last stable measuring value SU CR LF SUI CR LF Current measuring value... -
Page 63: Maintenance, Upkeep, Disposal
15 Maintenance, upkeep, disposal 15.1 Cleaning Please disconnect the device from the operating voltage before cleaning. Sample plate Extraction aid Plate holder Wind protection To clean, remove the components one after the other (see illustration). Only use a cloth dampened with mild suds and not aggressive cleaning agents (solvents or similar). - Page 64 Cleaning the temperature sensor: Temperatur sensor Lamp Also clean as described above. Make sure that the lamp is not touched or damaged. Cleaning under the moisture analyzer top piece: The space underneath the moisture analyzer top piece serves the purpose of insulation.
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Page 65: Disposal
15.2 Maintenance, upkeep The device may only be opened by trained service engineers authorised by KERN. Disconnect from the mains supply before opening. 15.3 Disposal The operating company shall dispose of the packaging and the device in compliance with the valid national or regional law of the operating location. -
Page 66: Mls-Ba-Defsi
Fault messages Description Error of control sum Error data transfer Error A/D Error A/D converter A/D Null Error A/D converter A/D Full Error A/D converter Tara/Zero outside the range Outside the weighing range Tara outside the range Outside taring range Result >...