Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for KERN DLB-A
Summary of Contents for KERN DLB-A
- Page 1 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 manual Electronic Moisture Analyzer KERN DLB-A Type TDLG_A Version 1.1 2020-12 TDLG_A-BA-e-2011...
-
Page 2: Table Of Contents
KERN DLB-A Version 1.1 2020-12 Operating manual Electronic Moisture Analyzer Contents TECHNICAL DATA ..................... 4 DECLARATION OF CONFORMITY ..............5 APPLIANCE OVERVIEW ................... 6 Components ......................... 6 Keyboard and display overview ..................8 BASIC INFORMATION (GENERAL) ..............10 Proper use........................... 10 Improper Use ........................ - Page 3 Setting the drying temperature ..................40 11.1.2 Adjust the switch-off criterion ................... 41 11.2 Carrying Out Measurement ....................42 11.3 Sample logs (KERN YKB-01N) ..................44 11.4 Results display ........................46 RS 232 INTERFACE ..................47 12.1 Technical data ........................47 12.2...
-
Page 4: Technical Data
1 Technical data Data DLB 160-3A DLB 160-3A110V Item no./ Type TDLG 160-3-A TDLG 160-3-A110V Radiator Halogen (1 x 400 W) 35°C - 160°C Temperature range Choice of steps at 1°C Maximum load (Max) 160 g 0.001 g (weighing mode) Readability (d) 0.01% (moisture content) Reproductibility (weighing mode) -
Page 5: Declaration Of Conformity
Electric Supply 220 – 240 V AC 50/60 Hz 100 - 120 V AC 50/60 Hz German, English, French, Languages operator guide Italian, Spanish, Portuguese 2 Declaration of conformity The current EC/EU Conformity declaration can be found online in: www.kern-sohn.com/ce TDLG_A-BA-e-2011... -
Page 6: Appliance Overview
3 Appliance overview 3.1 Components Pos. Designation Heater module Opening handle Protective glass guard Temperature sensor Halogen lamp Sample tray Windshield Removal aid Display Keyboard Levelling screw TDLG_A-BA-e-2011... - Page 7 Rear view: Pos. Designation Connection of connecting cable „Heating module / Scales Serial Interface RS 232C Mains connection socket Bubble level TDLG_A-BA-e-2011...
-
Page 8: Keyboard And Display Overview
3.2 Keyboard and display overview Status bar Toolbar Status bar: Pos. Designation Set drying temperature Active heating profile Current date Current time Active switch off criterion Toolbar: The displayed icons in the toolbar depend on the process being executed at this moment. - Page 9 Toolbar during measurement Pos. Designation Interrupt the drying process Stopping the drying process Display the current drying parameters [10] Switch over the unit of the results display (% moisture %dry content %Atro resid.weight [g] Toolbar „Display of results“ Pos. Designation [11] Exit the drying program / back to start display...
-
Page 10: Basic Information (General)
In KERN's accredited DKD calibration laboratory test weights and balances may be calibrated (return to the national standard) fast and at moderate cost. TDLG_A-BA-e-2011... -
Page 11: Basic Safety Precautions
5.1 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 12 Hazards during and after measuring Ensure the correct installation of all components. Careful when removing the sample. The sample itself, the sample tray and the heating unit may be very hot. Use the sample retainer at all times as it allows safe working and prevents burns.
-
Page 13: Transport And Storage
Substances that contain toxic or corrosive ingredients, that produce toxic gases when drying, cause irritation (eyes, skin, respiratory system), induce nausea or result in death Sample materials emitting toxic substances must be dried with a special extraction system in place. Create an environment that prevents the inhalation of vapours hazardous to health. -
Page 14: Unpacking, Setup And Commissioning
7 Unpacking, Setup and Commissioning 7.1 Installation Site, Location of Use The instrument is designed to achieve reliable weighing results under normal conditions of use. You will work accurately and fast, if you select the right location for your moisture analyzer. -
Page 15: Unpacking And Checking
7.2 Unpacking and checking Take the moisture meter carefully out of its packaging, remove the plastic jacket and install it at the designated work space. 7.2.1 Scope of delivery / serial accessories: Moisture analyzer, see chap. 3.1Components Power cable Connecting cable „Balance / Heating module“ Dish holder Removal aid Windshield... -
Page 16: Placing
7.3 Placing The appliance is supplied part-assembled. Immediately after unpacking check if the delivered items are complete. Assemble the separate component parts according to their sequence 1. Insert wind protection ring 2. Insert removal aid 3. Carefully insert the tray holder and twist until it engages. -
Page 17: Mains Connection
7.4 Mains connection For connection only use the delivered 3-pole mains cable. The appliance must be connected to a correctly installed standard socket with earth terminal (PE). Check, whether the voltage acceptance on the device is set correctly. Do not connect the appliance to the power grid unless the information on the appliance (sticker) matches the local mains voltage. -
Page 18: Switching On/Off
7.6 Connection of peripheral devices Before connecting or disconnecting of additional devices (printer, PC) to the data interface, always disconnect the moisture analyzer from the power supply. Only use accessories and peripheral devices by KERN, as they are ideally tuned to the appliance. TDLG_A-BA-e-2011... -
Page 19: Adjustment
Carry out adjustment as near as possible to the balance’s maximum weight (recommended adjustment weight see chap. 1). Info about test weights can be found on the Internet at: http://www.kern-sohn.com In the start display press the F1-key, the main menu will appear. - Page 20 Use the buttons under to select the menu item <5-Balance Calibration> and acknowledge by The weight value of the required adjustment weight will be displayed. Acknowledge with During the flashing weight display put the required adjustment weight carefully in the centre of the sample tray. The flashing display disappears.
-
Page 21: Calibrate/Adjust The Temperature Of The Heating Module
8.2 Calibrate/adjust the temperature of the heating module We recommend sometimes to check the temperature value of the device using the optional temperature calibrating set DLB-A01N. Before you do this, allow the device to cool down for at least 3 hours after the last heating phase. Preparation: ... -
Page 22: Calibration Of Temperature Value
8.2.1 Calibration of temperature value During temperature calibration only a check is carried out, i.e. no values are changed. In the start display press the F1-key, the main menu will appear. Press to select the menu item <6 - Temperature Test> and acknowledge by Acknowledge by , the current setting is displayed. -
Page 23: Adjust Temperature
8.2.2 Adjust temperature If in temperature calibration the admitted divergence is exceed or not reached, the temperature of the instrument can be adjusted as described below. Select menu item <7 – Heater Calibration> (see chap. 8.2.1, step 1) and confirm by Confirm the inquiries <Are you sure>... - Page 24 Temperature calibration for the second point takes 15 min. Compare the temperature displayed on the DLB-A01N with that of the moisture analyzer. If the two values do not match, correct with the help of and confirm by When an optional printer is connected, an adjustment log can be edited. Press to return into menu / start display.
-
Page 25: View / Print Out Adjustment Logs
<3 Balance Cal. Info> or <4 Heater Cal. Info.> and acknowledge by The adjustment protocol will be displayed. When an optional printer is connected, an adjustment log can be edited by pressing Sample log (KERN YKB-01N) Sample log (KERN YKB-01N) External adjustment Temperature adjustment TDLG_A-BA-e-2011... -
Page 26: Setup Menu
9 Setup menu In the setup menu, are adjusted all basic settings and parameters, which influence the whole operation of the scale. The following functions are available: Serial output see chap. 12.2 Time and date see chap. 9.2.2 Language see chap. 9.2.1 Background lighting see chap. -
Page 27: Description Of Individual Functions
Change settings Acknowledge the selected menu item using the F4 button under the icon , the available settings are displayed. Every time the buttons F2 and F3 under the icons pressed, the following setting will be displayed. Save settings Take over the selection using the F4 button under the icon Weighing balance returns to menu. -
Page 28: Setting Time And Date
9.2.2 Setting time and date Press to select the menu item <2 Time and Date> and acknowledge by Press to set the desired format. Press to select time / date and adjust by The active digit is underlined. ... -
Page 29: Setting The Contrast Of The Display
9.2.4 Setting the contrast of the display Press to select the menu item <5 Contrast adjustment> and acknowledge by Press to increase or to reduce the value. Adjustment range 0 -15 Acknowledge selection by 9.2.5 Weighing unit [g / mg] ... -
Page 30: Auto Zero
9.2.6 Auto zero Under this menu item the automatic zero point correction can be switched on or off. In switched-on-state the zero point is automatically corrected at drift or when dirty. Note: In the event that small quantities are removed or added to the material to be weighed, incorrect weighing results can be displayed due to the “stability compensation“. -
Page 31: Setting The Filter
9.2.7 Setting the filter This menu item allows the balance to be set according to specific ambient conditions and measuring purposes. Press to select the menu item <8 Filter> and acknowledge by Press to select the desired setting. Options: Filter 1 Setting for dosage... -
Page 32: Setting The Stability
9.2.8 Setting the stability Press to select the menu item <9 Stability > and acknowledge by Press to select the desired setting. Options: Stability 1 Standstill control fast / very quiet set-up location Stability 2 Standstill control fast + exact / quiet set-up location Stability 3 Standstill control exact / very busy set-up location ... -
Page 33: Application Menu
10 Application menu <Moisture analysis> In this menu all settings and parameters, which influence the moisture analysis and the heating module, are adjusted. Invoke main menu: In the start display press the F1-key, the main menu will appear. The following submenus are available: 1. -
Page 34: Settings Of The Heating Module
10.1 Settings of the heating module In the main menu press to select the menu item <1 Heater Setup> and confirm by The following functions are available: 1. Heating profile, see chap. 10.1.1 2. Preheating, see chap. 10.1.2 3. Start mode, see chap. 10.1.3 4. -
Page 35: Setting The Heating Profile
10.1.1 Setting the heating profile Two options are available to adapt the drying characteristics optimally to the sample being used: Standard drying This heating profile is suitable for most samples. The sample is heated to the set temperature at normal output and is then kept at this temperature. -
Page 36: Connect The Preheating Stage
10.1.2 Connect the preheating stage If necessary, the function „Preheating“ can be activated for preheating the sample chamber before starting the measurement. A preheated device may influence the reproducibility of the results as the device is in the same temperature status at every measurement. ... -
Page 37: Start Mode
10.1.3 Start mode Two options there are available: Measurement starts automatically after closing the lid. Automatic Manual Measurement starts after having pressed Press to select the menu item <3 Start Mode> and acknowledge by Select desired setting with and acknowledge by TDLG_A-BA-e-2011... -
Page 38: Start Delay
10.1.4 Start delay Press to select the menu item <4 Start Delay> and acknowledge by Select desired setting with and acknowledge by Setting range: 0 – 15 s 10.1.5 Stability test Two options there are available: Measurement starts only after a successful stability test Measurement starts without stability test ... -
Page 39: Glp Settings
10.2 GLP settings This menu item is used to define which information is to be printed in the header of the weighing logs. In the main menu press to select the menu item <2 GLP Setup> and confirm by The following parameters are available: 1. -
Page 40: Moisture Analysis
Guidance is available in form of existing standards, in-house directives or recommendations. For examples please also refer to our application manual which you can download from our KERN- Homepage (www.kern-sohn.com). The following parameters can be set for defining a method: Drying temperature, see chap. 11.1.1. -
Page 41: Adjust The Switch-Off Criterion
11.1.2 Adjust the switch-off criterion A switch-off criterion defines under which conditions the device is supposed to cancel the drying process. Cut-off criteria save continuous time checks and manual cancelling of drying. Furthermore they ensure that measurements are always carried out under the same conditions and provide for reproducible measurements. -
Page 42: Carrying Out Measurement
11.2 Carrying Out Measurement Having defined the drying parameter (see chap. 11.1) for your sample, measurement can be started. The display shows the current settings and guides you step by step through the measurement process. Display before starting the measurement: Pos. - Page 43 Weigh-in the prepared sample and close the lid. Measurement will be started automatically. • If measuring does not start automatically, the equipment is preset for manual start. Press for start. • Manual or automatic start can be selected in the menu, see chap. 10.1.3 •...
-
Page 44: Sample Logs (Kern Ykb-01N)
<Are you sure> by . The result is deleted from the display, the start display appears. 11.3 Sample logs (KERN YKB-01N) Unit „Display of results“ When an optional printer is connected, an adjustment log can be edited by pressing GLP <on->... - Page 45 Menu setting: SetupRS232 Printout time 30 s, see chap. 12.2.1 The display values are transferred to the PC in the previously defined output interval in connection with our transfer software Balance connection (KERN SCD 4.0). In the same time a drying curve can be represented graphically. It shows the progress of the drying procedure in real time and can help you to check and evaluate the results.
-
Page 46: Results Display
11.4 Results display During and after the measurement, the display can be switched over to the different units by % Moisture The moisture content of the sample will be displayed in percentages of the wet weight (= initial weight). % Dry material content The dry material content (DC) of the sample will be displayed in percentages of the wet weight (=initial weight) -
Page 47: Rs 232 Interface
• Use a suitable cable to connect the moisture analyzer to the interface of the printer. Faultless operation requires an adequate KERN interface cable. • Communication parameters (baud rate, bits and parity) of moisture analyzer and printer must match. -
Page 48: Setting The Output Interval
The following parameters are available: 1. Printout time, see chap. 12.2.1 2. Printer, see chap. 12.2.2 3. Baud rate, see chap. 12.2.3 4. GLP on/off, see chap. 12.2.4 to select the parameters of the following chapters. 12.2.1 Setting the output interval ... -
Page 49: Select Printer Type
12.2.2 Select printer type Press to define the printer type for your printout. Press to select the menu item <2 Printer> and acknowledge by Select desired setting with and acknowledge by Options: Standard printer T/LP-50 (printer with LP-50 protocol) 12.2.3 Setting the baud rate ... -
Page 50: Turn On/Off Glp Function
12.2.4 Turn on/off GLP function In the RS 232-menu press to select the menu item <4 GLP On/Off > and confirm by Press to switch on or off the GLP-conform output and confirm by TDLG_A-BA-e-2011... -
Page 51: General Information Concerning Moisture Analysis
The radiation applied in the KERN DAB penetrates mainly the sample in order to be transformed inside it into heat energy that is, warming from the inside to the outside. A minor amount of radiation is reflected by the sample, a reflection that is less in dark samples than in light-coloured ones. -
Page 52: Comparison With A Reference Procedure
13.4 Comparison with a reference procedure Often legal regulations or sector or company-specific instructions must be observed when measuring the moisture content of substances. The oven method (weight loss by drying) or Karl Fischer titration are usually used as a reference method. However, the use of a moisture analyzer is acceptable if you can demonstrate that the results obtained using this method are equivalent to those obtained by the oven- drying method and are equally accurate. - Page 53 Sample-taking Sample-taking has a great impact on the reproducibility of measurement results: • In order to ensure that the sample is representative of the total quantity, take as many samples as possible from different places and mix them well • Take an adequate sample quantity •...
- Page 54 Sample distribution • Distribute powdery and grainy samples evenly across the sample tray (avoid piling up). • Always apply the same sample quantity in order to ensure high reproducibility. • Apply the correct sample quantity. The tray should be covered thinly and evenly across the entire area. •...
- Page 55 Colourless / transparent samples do not reflect. Sample trays Always use KERN one-way sample trays. The measurement results very often turn out irreproducible if sample trays are reused. Sample residue may remain on the sample tray after cleaning.
-
Page 56: Servicing, Maintenance, Disposal
Loose residue sample/powder can be removed carefully with a brush or manual vacuum cleaner. 14.2 Servicing, 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. Monitoring of test resources. 14.3 Disposal ... -
Page 57: Instant Help
15 Instant help Possible causes of errors: 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 appliance is not switched on. Display is not lit up.
Need help?
Do you have a question about the DLB-A and is the answer not in the manual?
Questions and answers