www.pce-group-europe.com User Manual Moisture Analyser
Contents
1. Measurement number Date and time User information Exit Press MENU key choose Printout settings and press ENTER key Using lt and gt keys choose desired option and press ENTER key 27 USER MANUAL 14 5 Date and time setting This function enables to set curent time and date used in printouts USER FUNCTIONS Autotare PCS Press MENU key choose Date and Calibration RS 232C settings time setting and press ENTER key Print settings Date and time setting Language LCD Settings Exit Using lt and gt keys choose desired USER FUNCTIONS DATE AND TIME value and press ENTER key 1 Time 09 11 03 2 Date 2006 03 31 3 Exit USER FUNCTIONS DATE AND TIME Use digit keys to enter correct values and press ENTER key to accept 1 Time 09 11 03 2 Date 2006 03 31 3 Exit 14 6 User language This function enables to change user language used for communicates and printouts USER FUNCTIONS Autotare one Press MENU key choose Language settings and press ENTER key Date and time setting Exit USER FUNCTIONS LANGUAGE SETTING Using lt and gt keys choose desired 1 Polish language and press ENTER key 2 English 3 German 4 Exit 28 USER MANUAL RL hu 15 Troubleshooting Display indication Possible cause Remedy Initial heating Ts The temperature sensor is Contact an authorised service temperature exceeds damaged2. START SET BALANCE STOP DRYING REPORT Drying chart Product name Erecuniveldenebii Choose Drying chart using and v Notes keys and press ENTER Statistics Exit DRYING REPORT l ee Using lt and gt keys choose ON Executive done by and press ENTER Notes Statistics Exit USER MANUAL paar m0 m m0 100 Ts 120 C ts 0 10 00s T 118 34 C 30 When drying chart is visible place m 0 592g a sample on the pan and choose t 0 04 33s START option F1 key Drying m0 0 6959 parameters and drying process chart are presented on the display START SET STAT BALANCE STOP Observing the drying process chart it is possible to estimate its course and determine the time value needed for complete drying of the sample The X axis presents 160 time intervals for longer time periods the scale is changed to 360 720 etc the Y axis presents moisture values according to chosen formula the scale is changed automatically to 10 30 50 etc The moment of complete drying is visible as a bend of the drying chart Drying time should be defined with a reserve considering differences of weight of successive samples If drying time is too short the results of moisture analysis will not be correct For initial drying to condense the chart advised sampling time is 1s For proper analysis sampling time should be as long so that the difference between first
3. When drying chamber is opened avoid touching the heaters as it may cause severe burns or damage the heaters Dryer chamber cover 3 heats up to 40 C but perforated cover may heat up over 60 C Do not touch the top cover during drying as it may cause severe burns Take all contents out of a package the moisture analyser and packed separately the tin pan shield single use pans the pan handle and the pan support Place the balance on a stable ground not affected by mechanical vibrations and airflows Level the balance with rotating legs 9 so that the air bubble in water level 70 at the back of the balance is in the middle and the moisture analyser rests on all four legs Open the dryer chamber with the handle at the front Put the pan shield 4 on three distance sleeves 8 Gently insert the pan support 5 into the mechanism hole USER MANUAL PCE 5 Place a single use pan 7 on the pan handle 6 and put the pan on the pan support the handle should rest on the pan shield so that it does not touch the pan or the pan support 6 Close the drying chamber cover 3 and plug the device to the mains 230V 7 After self tests and result stabilisation zero indication is displayed The dryer starts initial heating signalised with an appropriate communicate After initial heating the moisture analyser is ready to work When temperature during initial heating exceeds 105 C or heating time is longer than 1 minute terminate
4. enter the correct value of used calibration weight using External weight option Select External calibration option and press ENTER to start calibration Wait until tare process is finished Place proper calibration weight on the pan Remove the calibration weight from the pan After completing calibration process the balance is the weighing mode USER MANUAL 14 3 RS 232C settings To establish a connection between the balance and a printer or a computer set identical transmission parameters for both devices Default parameters for the moisture analyser are 8bit lstop no parity 4800bps To set different transmission parameters switch the analyser to weighing mode using BALANCE option F4 key press MENU key and choose RS232C parameters function Choose between the following parameters transmission speed 1 200 115 200bps number of bits in a sign 7 or 8 bits parity control none even odd protocole mode default value LONG transmision mode after pressing key with stable indication after pressing gt key independently of indication stabilisation automatically after stabilisation of each measurement continuous in 0 1s periods USER FUNCTIONS Autotare ase ti Press MENU key choose RS232C alibration L RS 232C settings settings and press ENTER key Print settings Date and time setting Language LCD Settings Exit USER
5. lt 0 04 Max drying temperature Sampling time Maximum drying time Oven dryer power Warm up time 100 C Pan size Drying chamber dimensions Weight Device dimensions with legs 215 235 x345x200mm Power Calibration weight OIML F2 50g F2 100g F2 200g USER MANUAL 6 Keys and indicators indicator bar indicator indicator OFF Max Min d e Tist 24 35 C ma 4 321 g tm 0 00 00 s ms 0 0009 START SET STAT SCALE STOP tare subtract package weight from weighed mass switch on switch off standby confirmation select the option decimal point digit key 1 START start measurement drying digit key 2 SETTINGS moisture measurement parameters setting digit key 3 STAT drying chart measurement report digit key 4 BALANCE weighing mode digit key 5 STOP instant drying termination digit key 6 zeroing optional digit key 7 printout data transmission digit key 8 autocalibration unused function digit key 9 enter the Menu digit key 0 mode switching analyser balance enter the option leave the option navigation move the cursor up navigation move the cursor down result stabilisation total load indicator 0 100 stand by mode when switched off with I key metrologic parameters USER MANUAL Riven 7 Preparing moisture analyser to work p During heating the halogen heaters warm up to very high temperature
6. point 105 C the sensor does not react when touched with a finger Initial heating Ts The heater is damaged Replace the heater temperature does not reach 105 the halogen heater s do not light Test Auto tests in progress wait for 1 minute electronic unit damage u The balance is during zeroing wait for 1 minute mechanical damage check if the balance is placed on stable ground not affected by vibrations Tare range Tare key pressed during zero Balance indications must be exceeded indication different than zero Zeroing range Permissible zeroing range Remove the load from the pan exceeded was exceeded Weighing range Permissible weighing range Reduce the load exceeded Max 9e was exceeded Measuring range exceeded Upper limit of analog digital transducer measuring range was exceeded Remove the load from the pan Measuring range exceeded Lower limit of analog digital transducer measuring range was exceeded Check if there are all necessary pan elements 29 USER MANUAL 16 Maintenance and repairs of small defects p A moisture analyser should be kept clean 2 Take care that no dirt gets between the casing and the pan If found any remove the pan lift it up remove dirt and then replace the pan 3 In case of improper operation caused by a short lasting power supply decay unplug the balance from the mai
7. and last sample is greater than 20mg At the beginning advised qualifying quantity value is 5 Notes 1 Remember to disable the drying chart before proper measurement 2 For more efficient work it is possible to use a computer program for drying charts purchased separately on demand 18 USER MANUAL 11 5 Proper moisture analysis Before measurement carefully prepare the sample as described in chapter Description of Thermogravimetric Analysis and set correct drying parameters see chapter Working Parameters Setting mO m m0 100 Ts 120 C T 32 23 C m 0 000g t 0 00 00s m0 0 000g ts 0 10 00s 0 00 START SET BALANCE SAMPLE m0 m m0 100 Ts 120 C T 32 23 C m 2 033g t 0 00 00s m0 2 033g ts 0 10 00s 0 00 START SET BALANCE SAMPLE mO m m0 100 Ts 120 C T 32 23 C m 2 013g t 0 00 50s m0 2 033g ts 0 10 00s 1 00 START SET BALANCE STOP END Place an empty single use pan and tare the balance with T lt key Open the drying chamber and using the pan handle place the single use pan with the sample on the pan support Close the chamber Start the measurement choosing START option F1 key Drying in progress is signalised with alternating SAMPLE DRYING communicate Wait until STOP communicate appears Now read the result During the measurement the following informatio
8. drying process is called Qualifying quantity It is advised to use 5 samples but it is possible to use smaller qualifying quantity Time interval between each weight sample Sampling interval may be adjusted according to drying rate Ad 2 To terminate a measurement after defined Drying time set Qualifying quantity none The moisture can be calculated basing on different mathematical formulas used in the moisture analyser as Working modes 1 Moisture is determined in relation to initial weight w mo m mo 100 where mp initial weight m current weight 2 Moisture is determined in relation to current weight w m0 m m 100 3 Current weight determined as a percentage of sample weight w m mg 100 Drying temperature is maximum temperature measured by the temperature sensor near dried sample Pay attention that temperature of dried material may be higher than temperature of its surrounding 11 3 Working mode parameters setting m0 m m0 100 Ts 120 C ts 0 10 00s T 32 23 C m 0 000g t 0 00 00s Choose Settings option SET m0 0 000g pressing F2 key START SET BALANCE STOP MOISTURE ANALYSER PARAMETERS Working mode m0 m m0 100 Drying temp 60 C Choose Working mode using and Qualified qty l 2 samples v keys and press ENTER Sampling interval 10s Drying time 0 00 10s Exit MOISTURE ANALYSER PARAMETERS Using lt gt and digit keys
9. if ae necessary choose desired drying Te o iii parameters and press ENTER Qualified qty 2 samples to accept Camping imemal 4 Moisture calculation formula Drying time f 00 ap Exit Qualified quantity options none 2 3 4 5 Sampling interval lt 180s Drying time lt 10h MOISTURE ANALYSER PARAMETERS To leave settings menu choose Working mode m0 m m0 100 Exit and press ENTER Drying temp i 60 C Qualified qty 2 samples Sampling interval 10s Drying time 0 00 10s Exit Note All defined parameters are stored in the memory until the next changed also after unplugging the device from the mains 16 USER MANUAL nites 11 4 Initial moisture analysis To estimate optimal drying parameters for unknown sample it is advised to proceed with initial measurement necessary to make initial measurement with activated drying chart For initial drying set the following parameter values see Drying parameters setting Temperature organic matters 80 100 C mineral matters 140 160 C Qualifying quantity none drying process is stopped after defined drying time Sampling interval 1s Drying time set the time value enough to dry the whole sample To display drying chart follow the instruction below ms ma ms 100 Ts 120 C ts 0 10 00s T 32 23 C Choose STAT option with F3 key m 0 000 ik 0 00 of select Drying chart and press m0 0 000g ENTER
10. initial heating with CLR key and check if the temperature sensor 2 works properly and if both halogen heaters light see chapter 15 In case any defect occurs contact an authorised service point 8 The balance should not be used to weigh ferromagnetic materials due to accuracy decrease USER MANUAL niceties 8 Interfaces The moisture analyser is equipped with RS23C interface to connect a printer or a computer and with PS2 port to connect an external computer keyboard rn _ Clock TxD send Eo a is Oo Ss 5V Mass Mass Data Housing 9 General working rules During transportation remove the pan the pan support and the pan shield and place it in a separate package Distribute a sample all over the pan A sample surface should not touch temperature sensor placed above the pan 2 The balance is equipped with the tare equal to its range To tare the balance press T key Writing the tare does not extend measuring range but only subtracts the tare value from a load placed on the pan To make weight control easier and to avoid range overdrawing the balance is equipped with weight indicator graduated in percentages 3 Do not overload the balance more then 20 of maximum load Max 4 The mechanism of the balance is a precise device sensitive to mechanical strokes and shocks Do not press the pan with a hand 10 Description of thermogravimetric analysis This section gives some practica
11. materials avoiding burning a sample 10 8 Practical notes Put a sample on the pan as quickly as possible to avoid losing moisture Temperature inside the chamber is much higher than outside so the sample may evaporate partly before measurement begins which will result in a false result 12 USER MANUAL PCE When analysing the same substance quantity in successive measurements use the same tools to put a sample to be sure that samples are each time of the same size Before putting a sample tare a single use pan and take it out of the chamber Right after putting a sample on the pan place it inside the analyser chamber close the chamber and press START Be sure that no dirt sticks under the pan as it may increase sample weight and result in false values 10 9 Troubleshooting Problem Solution Reduce temperature A sample burns down Use glass fibre filter on the top of the sample Reduce sample quantity and distribute it uniformly Increase temperature Drying lasts too long Reduce sample mass A sample loses weight Take out the pan and put a sample outside the before measurement chamber A sample is liquid or paste Use glass fibre filter A sample does not consist of enough volatile matters Enlarge a sample USER MANUAL nites 11 Moisture analyser functioning description 11 1 Switching on After switching on the moisture analyser proceeds with self tests START UP program versi
12. FUNCTIONS RS 232C Select desired parameter with a and v keys and press ENTER key Transmission speed 4800 Number of bits 8 bit Parity none Protocol LONG Transmission mode P key stab Exit USER FUNCTIONS RS 232C Using lt and gt keys choose desired Transmission speed 48005 value and press ENTER key Number of bits 8 bit Parity none Protocol LONG Transmission mode P key stab Exit 26 USER MANUAL Data transmission protocol description Long protocol Transmission parameters 8bit w 1stop no parity 4800bps Computer Balance initialising signal S I CR LF 53h 49h ODh OAh Balance gt Computer balance indication in the following format 16Bytes Byte 1 sign or space Byte 2 11 and 14 space Byte 3 4 digit or space Byte 5 9 digit decimal point or space Byte 10 digit Byte 12 k l c p or space Byte 13 g b t c or Byte 15 CR ODh Byte 16 LF OAh 14 4 Printout parameters This function enables to select following information for printouts successive measurement number curremnt date and time for each measurement user information available on demad additional information entered with external keyboard USER FUNCTIONS Autotare PCS Calibration RS 232C settings Print settings Date and time setting Language LCD Settings Exit USER FUNCTIONS PRINTOUT SETTINGS
13. R MANUAL Aloe and light surfaces reflect radiation better This must be taken into account when setting drying parameters 10 3 Drawing and preparation of a sample As sample of given substance must be representative drawing and preparing a sample is very important process as it affects repeatability of measurements The most common method of homogenizing a sample is mixing The other method is to draw few samples from different but specific points in a substance and calculate an average value Another to draw few samples from different points in a substance mix them and draw a sample from the mixed samples Sampling method depends on the object of a research For quality purpose many representative samples are analysed In production control it is enough to assure sampling repeatability which enables to study a tendency While preparing and drawing it is important that the sample does not absorb moisture from the environment it is advised that operation time is as short as possible If it is necessary to analyse more than one sample at the same time the samples should be closed in plastic bags or other isolated containers Give attention that samples must not lose moisture inside the container the container should not consist of to much air the moisture condensed on the sides of the container should be mixed with the sample again 10 4 Tools requirements Tools and instruments used in preparation process may affect measuremen
14. e It is possible to set necessary serial port parameter values 8bit Istop no parity 4800bps To use RS232C Settings option press gt key weighing mode and pres MENU key 13 Testing and calibration of the balance To ensure reliable results it is advised to check balance accuracy with an object of precisely known weight e g calibration weight F2 OIML as stated in Technical Data for specific type before and after each measuring session In case incorrect values it is necessary to calibrate the balance press t key to switch to weighing mode activate Calibration option using MENU key and follow the instructions on the display see chapter Sensitivity Calibration 21 USER MANUAL nites 14 Moisture analyser as a balance The moisture analyser may be also used as a normal balance To switch between analyser weighing mode press gt key or use option BALANCE F4 key In weighing mode Menu key opens a set of special functions Standard functions are described below Other special functions may be delivered on demand 14 1 Autotare USER FUNCTIONS Autotare PCS Calibration RS 232C settings Print settings Date and time setting Language LCD Settings Exit USER FUNCTIONS AUTOTARE 1 Activate 2 correction range 2 d sec 3 Exit USER FUNCTIONS AUTOTARE 1 Activation 2 Correction range 2 d sec 3 Exit Press Menu key to enter th
15. e user function menu chose Auto tare and press ENTER key Chose Correction range and press ENTER key Enter maximum zero flow value to be automatically corrected chose between 0 5 5 verification unit s per second Chose Activate option and press ENTER Any changes off the zero readout that are equal to a defined fraction of digits per second are automatically tared independently of changing environment conditions temperature humidity etc To leave the function press Menu key chose Auto tare function and then chose Deactivate option 22 USER MANUAL 14 2 Balance calibration Calibration with external weight standard should be performed in case indications exceed permissible error To calibrate the balance use calibration weight as stated in Technical Data table or of better accuracy Calibration options USER FUNCTIONS Autotare PCS Calibration RS 232C settings Print settings Date and time setting Language LCD Settings Exit USER FUNCTIONS CALIBRATION 1 External calibration 2 External weight 200g 3 Report printout 4 Exit USER FUNCTIONS CALIBRATION 1 External calibration 2 External weight 200g 3 Report printout 4 Exit USER FUNCTIONS CALIBRATION 1 External calibration 2 External weight 200g 3 Report printout 4 Exit 23 Press MENU key choose Calibration option and press ENTER To calibra
16. he balance 21 14 Moisture analyserasabalance eee 22 14 1 Autotare 200000 oo LLLLL N 22 14 2 Balance calibration oo oo LI 23 14 3 RS 232C settings 00 oo LI 26 14 4 Printout parameters _____ 22 oo LLLLLL 27 14 5 Dateandtimeseting 2 222222 28 14 6 User language eee 28 15 Troubleshooting ee 29 16 Maintenance and repairs of small defects eee 30 Declaration ofConformity 222 LLLLL 31 Appendix Drying parameters for different substances examples 32 USER MANUAL PCE 1 General description MB series moisture analyser is destined for fast and precise moisture determination The moisture analyser is based on two cooperating devices the balance used to measure current sample weight and the dryer which dries the sample using halogen heaters Drying parameters may be set according to user preferences Moisture analysers are mainly destined for use in quality control in food industry building materials industry biotechnology pharmacy environment protection and others Moisture analysers may be also used as laboratory balances for routine weighing without drying 2 Completeness Standard package consists of 1 Moisture analyser Pan shield pan support pan handle Single use pans 10 pcs Power supply cord User manual Guarantee card No eS i USER MANUAL niceties 3 Security rules To avoid electrical shock or damage of the balance or connected peripheral devices it is necessary to follow t
17. he security rules below e Dryer chamber cover heats up to 40 C but perforated cover at the top may heat up over 60 C Do not touch the cover top during drying as it may cause severe burns e During heating the halogen heaters warm up to very high temperature Avoid touching the heaters as it may cause severe burns e All repairs and necessary regulations can be made by authorised personnel only e Do not use the analyser when its cover is opened e Do not use the analyser in explosive conditions e Do not use the analyser in high humidity e If the device seems not to operate properly plug it out of the mains and do not use it until checked by authorised service USER MANUAL Riven 4 Environment protection According to legal regulations it if forbidden to dispose wasted electronic equipment in waste containers WEEE Reg Nr DE64249495 e Please return wasted device to the point of purchase or other company specialised in recycling of wasted electronic components 5 Technical data Type PCE MB 50 PCE MB 100 PCE MB 200 Maximum sample weight 100g 2009 Minimum sample weight 0 029 0 029 0 029 Reading unit d Verification unit e Tare range 509 1009 2009 Accuracy class C ee Working temperature Analyser resolution for sample weight 0 1g 5g 0 3 Moisture measurement accuracy for sample weight 5g 15g 0 06 for sample weight gt 15g
18. l details about moisture analysis using infrared radiation for reliable results and easier use of moisture analyser The description is based on a pre production experience and customers suggestions Moisture in substances is an essential quality factor of technical and economical importance 9 USER MANUAL en Methods of determining moisture may be grouped in two main categories absolute and deductive Absolute methods are based on simple relations e g weight decline during drying Thermogravimetric analysis used in PCE moisture analyser is an example of this method Deductive indirect methods measure physical quantity related with moisture e g electromagnetic waves absorption electrical conductance acoustic wave speed Some of these methods unlike thermogravimetric analysis enable to determine water content Thermogravimetry lat thermo heat gravi weight metry method Thermogravimetric analysis a process of determination of a substance mass decline as a result of heat up The sample is weighed before and after heating up the difference is calculated in relation to initial weight or final weight dry mass Moisture in substances Thermogravimetric analysis includes all ingredients evaporating from substances during heating up which results in weight decrease In result of the above determining of moisture content in substances is not equal water content Beside water moisture consists of all
19. n is displayed m0 m m0 100 Ts defined drying temperature ts defined drying time T current drying temperature m current weight t current drying time m0 initial weight mathematic formula used for calculations USER MANUAL en 12 Connecting to a computer or a printer When drying process is finished measurement result can be printer or a computer via RS232C interface Measuring data can be also completed with text information To enter text descriptions it is necessary to connect a computer keyboard to PS2 port at the back of the moisture analyser m0 m m0 100 Ts 120 C ts 0 10 00s T 32 23 C m 2 0339 t 0 00 00s Choose STAT option F3 key m0 2 0339 0 00 Yo START SET BLANCE STOP SAMPLE DRYING REPORT Using navigation keys and ENTER Drying chart key choose Drying chart and Product name Executive done by disable or enable printing and Notes T displaying the chart Exit DRYING REPORT Select necessary options and _ Drying chart with the connected computer Product name keyboard enter text information Executive done by for printed report Notes Statistics Exit 20 USER MANUAL Rice To print the drying report press E gt key Drying started Mode Finished Initial weight Final weight Drying time Sampling interval Moisture NOTE The analysis proceeded by Signatur
20. ns and then plug it again after few seconds 4 It is forbidden to make any repairs by unauthorised persons 5 To repair the scale please contact an authorised service centre 30 USER MANUAL RL hu Declaration of Conformity PCE GROUP Europe Im Langel 4 Tel 0049 0 2903 976 99 0 D 59872 Meschede Fax 0049 0 2903 976 99 29 E Mail info warensortiment de Internet www pce group europe com Konformitatserklarung Declaration of conformity for apparatus with CE mark Konformitatserklarung fur Gerate mit CE Zeichen Declaration de conformite pour appareils portant la marque CE Declaracion de conformidad para aparatos con disitintivo CE Dichiarazione di coformita per apparecchi contrassegnati con la marcatura CE PCE MB 50 100 and 200 marked with CE mark comply with the following 1 EN 61010 1 standard Safety requirements for electrical equipment for measurement control and laboratory use General requirements harmonized with the directive 73 23 EEC Low Voltage Directive 2 EN 55022 2000 standard Limits and methods of measurement of radio disturbance characteristics of information technology equipment and IEC 61000 4 3 Electromagnetic compatibility EMC Part 4 3 Testing and measurement techniques Radiated radio frequency electromagnetic field immunity test harmonised with the Council Directive 89 336 EEC Additional information Conformity evaluation for the Council Directives 73 23 EEC and 89 336 EEC
21. on V CPU test V EEPROM read out After completing self tests the analyser is tared and the dryer begins initial heating necessary to create thermal conditions suitable for measurements m0 m m0 100 Ts 120 C ts 0 10 00s T 32 23 C m 0 000g Ts 105 C INITIAL HEATING Initial heating should warm the drying chamber up to 105 C within 1 minute When temperature during initial heating exceeds 105 C or heating time is longer than 1 minute terminate initial heating with CLR key and check if the analyser is not damaged see chapter 15 After initial heating is completed or terminated the device displays the following information m0 m m0 100 Ts 120 C ts 0 10 00s T 32 23 C m 0 000g 0 0 0 t 0 00 00s m0 0 000g START SET BALANCE STOP Legend m0 m m0 100 formula used to calculate the moisture Ts defined drying temperature ts defined drying time T current temperature in the drying chamber m current weight t current drying time m0 initial weight 14 USER MANUAL Rite 11 2 Description of parameters and working modes Current value of moisture measurement is calculated and displayed during drying The process is finished under one of the conditions below 1 Evaporating is finished and successive weight measurements results samples do not differ 2 User defined Drying time is finished Ad 1 The number of successive samples that terminates
22. other volatile matter fats alcohol aromas organic dissolvent and other substances resultant as en effect of thermal decomposition Thermogravimetric analysis does not distinguish water from other volatile matters Infrared radiation drying is more effective than traditional methods e g in an oven as the radiation deeply penetrates the substance which shortens drying time 10 1 Infrared radiation source MB series moisture analyser uses 2 halogen heaters rated power 200W 1 118mm in serial connection as a radiation source The heaters emit also visible radiation which does not affect drying process 10 2 Infrared radiation drying description Sample drying is a result of absorption of infrared radiation which results in sample temperature increase and evaporation of volatile matters Infrared radiation penetrates surface layers the depth depends on penetrability of a sample different in various substances Part of radiation is reflected by the sample surface Penetrated layers absorb the radiation and convert its energy into heat Emitted heat propagates inside the sample Effectiveness of the propagation depends on thermal conductivity of the sample The better the conductivity the faster drying process and volatile matter evaporation During drying process sample parameters change its thermal conductivity decreases so there is a risk of burning the sample Some parameters may be estimated by sight e g smooth 10 USE
23. t accuracy so it is advised not to use tools that transmit heat as it makes the sample lose moisture before analysis Use only special mills and pestles In case of liquids with consisting of solid materials use a glass mixer a spoon or a magnetic mixer 11 USER MANUAL eher 10 5 Single use pans To analyse the moisture put a sample on a single use pan and place it in the dryer chamber Using non reusable pan helps to avoid false results by remains of previous samples 10 single use pans are provided with the moisture analyser Any quantity may be delivered on demand 10 6 Placing a sample A sample should be placed uniformly all over the pan so that heat propagates equally all over the sample and dries whole sample effectively and quickly without leaving wet places Correct Incorrect er 4 Attention Due to temperature sensor localisation max sample height is 10mm When substance ply is too thick surface layers will be heated too much and internal not enough This may result in burning the sample or surface incrustation which will make drying process difficult and measuring result false A sample should be placed in uniformed layers 2 5mm thick weighing 5 15g depending on a substance 10 7 Glass fibre filter When drying liquids pastes or substances that may melt or loose liquid during drying it is advised to use glass fibre filters Filters ensure equal liquid distribution or in case solid
24. t into small pieces 14 5 26 Skimmed milk 5 110 mix a sample 27 Cottage cheese 1 2 130 mix a sample 8 28 Almonds with caramel 3 5 80 grind into thick powder 4 8 29 Normal almonds 2 5 100 grind into thick powder 5 3 30 Almonds 3 100 grind into thick powder 5 3 31 Materials for bricks 7 160 distribute a sample 20 39 Whey 5 110 mix a sample 33 Multivitamin bars 3 3 4 115 grind into thick powder 3 3 34 Natural latex 1 4 160 mix a sample 3 3 32
25. te the balance use External calibration option described in further part of the instruction Option External weight enables to enter the value of used calibration weight Choose External weight option press ENTER and use gt and lt keys to select desired value It is advised to use as great weight value as possible To print a calibration report connect a printer and use Report printout option Calibration report is a proof of correct calibration process and may be useful for balance diagnostics USER MANUAL ate Report example Production date Serial number Program version Ext calibration weight external weight value used for last calibration Factory calib weight _ unused parameter Int calib weight _ unused parameter Weight difference _ unused parameter 24 USER MANUAL Calibration operation sequence USER FUNCTIONS Autotare PCS Calibration RS 232C settings Print settings Date and time setting Language LCD Settings Exit USER FUNCTIONS CALIBRATION 1 External calibration 2 External weight 200g 3 Report printout 4 Exit CALIBRATION External calibration taring CALIBRATION External calibration Put on calib weight _200g CALIBRATION External calibration remove the calib weight 25 Press Menu key choose Calibration and press ENTER key If necessary
26. were carried out by Date 12 11 2005 Sr Signature _ Z O ZO SSS PCE GROUP Europe OHG Management 31 USER MANUAL Appendix Drying parameters for different substances examples No Substance E ak i ld Preparation Analysing time min 1 Cotton seeds 3 4 110 grind a samplg for 6 3 min 2 Bean 4 5 150 grind a sample 9 7 3 Butter 1 7 140 tear up a foil 4 3 4 Photo paper 2 150 tear up in 1 cm pieces 6 4 5 Dialyse membrane 0 5 80 cut into thin slices 2 2 6 Dialyse membrane 0 5 0 7 80 cut into thin slices 2 7 Pea 3 5 135 grind for 30 sec 7 9 8 Peanuts 2 8 100 grind into thick powder 4 9 Peanuts 3 100 grind into thick powder 10 Mint pastilles 3 3 4 90 grind into thick powder 2 9 11 Ceramics clay 2 5 160 cut into thin slices 9 12 River water 4 160 mix a sample 20 13 Dissolvent 155 mix a sample 7 6 14 Cottage cheese 6 140 mix a sample 15 Dry beans 3 4 105 grind a sample 5 16 Dry peas 5 7 110 grinda a me 9 6 17 Dry carrot 5 5 6 120 grind a sample 3 18 Dry corn 5 7 110 grind a sample 10 19 Nuts 32 100 grind into thick powder 3 8 20 Nuts in shells 2 6 100 grind into thick powder 4 5 21 Coffee seeds 3 5 4 120 a cord 8 min 22 Dry potato pieces 2 5 3 0 130 divide a mass 5 8 23 Resin dissolvent 2 160 mix a sample 5 9 24 Lentil 4 135 grind a sample for 30 5 4 sec 25 Loess soil 2 5 160 cu
27. www pce group europe com PCE GROUP Paper Consult Engineering Group oHG Im Langel 4 Deutschland D 59872 Meschede Tel 029 03 976 99 0 Fax 029 03 976 99 29 info warensortiment de www pce group europe com User Manual Moisture Analyser PCE MB series 50 100 200 Measuring method description File ba moisture analyser pce mb 50 100 200 en USER MANUAL GROUP Contents 1 Generaldescription 0 IL 3 2 Completeness eee 3 3 Security rules 000 Lo 4 4 Environment protection 22 5 5 Technical data ee 5 6 Keys and indicators ____ ee 6 7 Preparing moisture analyser to work 22222 7 8 Interfaces 2 2220 LLLLL L 9 9 General working rules eee 9 10 Description of thermogravimetric analysis 22222222 9 10 1 Infrared radiation source _____ eee 10 10 2 Infrared radiation drying description _____ 222222 10 10 3 Drawing and preparation ofa sample 2222222 11 10 4 Tools requirements ____ 2 Lo LLLLL L 11 10 5 Single usepans 2 oo IL 12 10 6 Placing a sample eee 12 10 7 Glass fibre filter _____ 2222 12 10 8 Practical notes ___ oo LLLLLL 12 10 9 Troubleshooting 2222 13 11 Moisture analyser functioning description 22222 14 11 1 Switching on 22 222200 0 oo 14 11 2 Description of parameters and working modes ___ eee 15 11 3 Working mode parameters setting 2222222 16 11 4 Initial moisture analysis ______ 2 17 11 5 Proper moisture analysis 22222 19 12 Connectingtoacomputeroraprinter 22222 LI 20 13 Testing and calibration of t
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