Operating Instructions Betriebsanleitung YTM15MA. Heating Adjustment Set Heizungsabgleichset

Transkript

1 Operating Instructions Betriebsanleitung YTM15MA Heating Adjustment Set Heizungsabgleichset

2 English page 3 Deutsch Seite 28

3 Contents Contents 1. About This Document Validity Accompanying Documents Symbols Used Safety Instructions Intended Use General Safety Instructions Device Description General Equipment Supplied Transport Calibration General Requirement for Calibration Conditions before Calibration Weighing Properties Heating Properties Single-point Temperature Adjustment (MA35) Temperature Table for MA Two-point Temperature Calibration/Adjustment (MA37, MA160) Calibration (MA37, MA160) Heating Calibration/ Adjustment Error Codes Deactivated Keys Error Messages during Operation Calibration/Adjustment Error Messages Information about Device Maintenance USB Device Error Message Care and Maintenance Disposal Battery Replacement Factory Calibration Certificate (Sample) YTM15MA Heating Adjustment Set 3

4 1. About This Document 1.1 Validity These operating instructions provide information on maintenance, repairs and error messages for the YTM15MA adjustment set. In addition, an overview table of the adjustment values for the MA35 is also included in this manual. 1.2 Accompanying Documents General information: Additional information for the MA37/160: operating instructions WMA001 service manual Additional information for the MA35: operating instructions WMA5005 service manual 1.3 Symbols Used As a means of instruction and direct warning of hazards, all especially important text statements in these installation instructions will be marked as follows: This symbol denotes a possible danger with moderate or minor risk of injury if not avoided. 4 YTM15MA Heating Adjustment Set

5 This symbol is an indication of a function or setting on the device: indicates caution should be exercised while working identifies useful information The following depictions are also used: Texts that use this mark are lists. t t Texts that use this mark describe activities that must be carried out in the specified order. y y Texts that use this mark describe the result of an action. YTM15MA Heating Adjustment Set 5

6 2. Safety Instructions 2.1 Intended Use The activities described in these operating instructions are reserved exclusively for Sartorius Service personnel (or specialized personnel expressly authorized by them). 2.2 General Safety Instructions Danger of burns! Do not insert the adjustment disk immediately after drying. Do not remove the disposable pan or pan retainer until they have cooled down enough to be touched. Always use the removal tool to transport the adjustment disk or remove it from the moisture analyzer. Allow the adjustment disk to cool on a clean, temperature-resistant pad before or after completion of a measurement. After cooling, place the adjustment disk back into its packaging and store it in a dust-free and protected location. 6 YTM15MA Heating Adjustment Set

7 3. Device Description 3.1 General The YTM15MA heating adjustment set basically consists of an adjustment disk with a special coating and a GMH175 digital precision thermometer. Both parts have a common serial number (reference ID no.). This is listed in the factory calibration certificate. YTM15MA Heating Adjustment Set 7

8 3.2 Equipment Supplied After unpacking the heating adjustment set, inspect the device immediately for completeness and any visible external damage No. Description 1 Carrying case 2 GMH175 measuring instrument 3 Adjustment disk 4 Battery 5 Disk holder (removal tool) 6 Measurement cable 7 Factory calibration certificate with serial number (ref. ID no.) 8 Operating instructions 8 YTM15MA Heating Adjustment Set

9 4. Transport The adjustment disk may only be removed or transported using the disk holder (removal tool). The adjustment disk may not be removed or transported using a sharpedged tool (e.g.: pliers or tweezers). Do not pull the adjustment disk out of the device using the measurement cables. Do not transport the adjustment disk by holding it by the measurement cables. YTM15MA Heating Adjustment Set 9

10 5. Calibration 5.1 General The moisture analyzer to be calibrated (called device in the following) should be calibrated to the ambient conditions present for the user. If the moisture analyzer is operated in an extraction chamber, then the calibration must also be performed there. Avoid influencing the measured values. The device should always be calibrated while taking the following conditions into account: Calibration should always be performed in a temperate area (room temperature = 20 C) Calibration should always be performed in a clean measurement location On a stable and even surface (table) Drafts (e.g. from open doors/windows) should be avoided Shield the device if required The frequent movement of persons in front of the device should be avoided (unstable conditions) Avoid direct sunlight Avoid gases or dusts Set up a safety distance in the direct vicinity of the device (at least 20 cm on all sides and at least 1 m over the device) 10 YTM15MA Heating Adjustment Set

11 5.2 Requirement for Calibration When a performance test is carried out for the series MA37 or MA160 device (see Sartorius Moisture Analyzer model MA37 and MA160 operating instructions), both the weighing system and heating unit components are tested and checked at the same time. A ReproEasy pad is required for this. If this test comes back negative multiple times, then a calibration of the heating is probably required. The performance test is not carried out for the MA35 device. In this case, only a single-point comparison of the heating is possible (in this situation, contact Sartorius Service beforehand). The calibration of the heating for a device is a vital procedure. Therefore, a detailed analysis must be performed before the calibration because any possible incorrect calibration can have negative effects on the measurement results for the user. Proceed as follows for the analysis: tt Run the performance test for the MA37/160 devices. yy If this test fails twice consecutively, then either heating calibration or balance calibration is required (see following flowchart). YTM15MA Heating Adjustment Set 11

12 Device should be tested Run performance Test Test OK? no Text failed 2x? no yes yes Balance tested? no yes Device is OK Calibrate heating Calibrate the balance* * See: Conditions Before Calibration (weighing properties) 12 YTM15MA Heating Adjustment Set

13 Reasons for an incorrect measurement: Non-compliance regarding ambient conditions Intense direct sunlight Strong draft ReproEasy pad was not used correctly (e.g. the protective film was not removed from the ReproEasy pad or the incorrect side of the ReproEasy pad was placed on the pan) Weighing system is defective Temperature sensor was replaced Heating rod was replaced Motherboard (MA35) was replaced (Err 340) Powerboard (for MA37/160) was replaced Error 79 (MA35): Absence of temperature difference compensations (no dryer adjustment data) 5.3 Conditions before Calibration Weighing Properties When a calibration of the heating system must be performed on the device, then device weighing properties must be checked beforehand (linearity, reproducibility). Sartorius recommends calibrating the device weighing properties before calibrating the heating properties. Please follow the respective information regarding calibration in the service manuals of the devices being tested. YTM15MA Heating Adjustment Set 13

14 Devices must first be acclimatized for the calibration/ adjustment. MA35, MA37, and MA160 devices must be turned on in mains operation approx. 30 minutes before calibration without any heating activities. After this task is completed, the device must remain in operation until the calibration of the heating properties takes place. The device sample chamber must be clean; any objects placed inside must be removed Heating Properties First check the general heating status of the device: Is the heating element dirty or loose? If yes, clean the heating element and/or secure it. Is the temperature sensor dirty or loose? If yes, clean the temperature sensor and/or secure it. Is the temperature sensor positioned correctly? If no, adjust it to the correct position. 5.4 Single-point Temperature Adjustment (MA35) Perform the single-point temperature adjustment on an acclimatized device (no pre-heating required). The temperature adjustment (duration approx. 85 minutes) must take place while maintaining constant ambient conditions. 14 YTM15MA Heating Adjustment Set

15 The following procedure corresponds to a fixed, uniform process between heating up, cooling down, measuring and adjusting, each under the same general conditions. These constant conditions are required so that the temperature measurements can be compared. Use the adjustment set to determine the temperature setting of the reference dryer according to the respective control instructions (pre-heating, measuring, cooling down, etc.) and note the determined value. Example: Test temperature setting for reference dryer: 130 C (display) Determined temperature (with adjustment set) for test device: C (display) Procedure for single-point temperature adjustment: tt Switch on the device to be tested. tt Set the following temperature parameters: Drying temperature: Test temperature of the reference dryer Remaining parameters: Any tt Select the calibration function using the cursor keys: Confirm CAL (display) with ENTER. tt Select the PH function (heating calibration) via the cursor keys and confirm with ENTER. TAR appears on the display. tt Tare the device with ENTER. tt Now place the measurement disk on the cruciform pan retainer with the GMH175 measuring device connected. YTM15MA Heating Adjustment Set 15

16 tt Close the hood. yy The measurement starts with the following sequence: 0.0 to 49.9 minutes: Display CAL H to 69.9 minutes: Display CAL H to 84.9 minutes: Display CAL H to 99.9 minutes: Display + x.x, Output display Beeps 5x every 10 sec. until one of the two +/- cursor keys is pressed. tt If the temperature deviation is within tolerance (after 85 minutes), exit the program with the CF key. tt If the temperature deviation is outside of tolerance (between 85 and 100 minutes), correct the temperature with the +/- cursor keys. tt Enter the correction values: Positive values for a temperature that is too low, negative values for a temperature that is too high. tt Confirm the correction by pressing and holding the ENTER key. yy A report is now printed. If no correction entry with a confirmation is made before 100 minutes, the calibration cancels automatically with Err C. Example: Adjustment temperature Adjustment range 50 C +5.5 / 7.5 C 100 C +9.5 / 12.5 C 150 C / 18 C The permitted adjustment range depends on the selected drying temperature. 16 YTM15MA Heating Adjustment Set

17 5.4.1 Temperature Table for MA35 The table is required to establish comparability to the old measurement disk technology of the YTM01MA: Temperature on measuring device [ C] Converted temperature for MA35 [ C] Temperature on measuring device [ C] Converted temperature for MA35 [ C] YTM15MA Heating Adjustment Set 17

18 Temperature on measuring device [ C] Converted temperature for MA35 [ C] Temperature on measuring device [ C] Converted temperature for MA35 [ C] 18 YTM15MA Heating Adjustment Set

19 Temperature on measuring device [ C] Converted temperature for MA35 [ C] Temperature on measuring device [ C] Converted temperature for MA35 [ C] YTM15MA Heating Adjustment Set 19

20 5.5 Two-point Temperature Calibration/ Adjustment (MA37, MA160) The adjustment can only be activated in Service mode. Enter the service password: see MA37, MA160 service manual. tt Place the measurement disk. The dryer requires a heat-up phase of at least 30 minutes to achieve a uniform temperature in the device for the start of the calibration/adjustment. tt Pre-heat the device to a temperature of 110 C. This may require that you create a new program or change an existing program: Delicate drying 110 C Time 30 minutes Calibration (MA37, MA160) After the heat-up phase is complete, the device calibration takes place at a temperature of 110 C. The calibration procedure is explained in detail in the MA37, MA160 service manual. The ambient conditions must be maintained during the calibration/adjustment process (duration approx. 50 minutes). If the deviation is significantly outside of the specified tolerance, the service technician can perform a heating calibration/adjustment. 20 YTM15MA Heating Adjustment Set

21 For the MA37: Make a note of the original method parameters of the customer. After the calibration/adjustment, the method parameters must be restored Heating Calibration/Adjustment Do not operate the device with a temperature that is higher than 80 C immediately before the calibration/ adjustment. If this is the case, allow the device to cool down at least 30 minutes with its hood open. tt Place the measurement disk. The dryer requires a heat-up phase of at least 30 minutes to achieve a uniform temperature in the device for the start of the calibration/adjustment. The device is pre-heated to a temperature of 80 C. tt Perform the heating calibration/adjustment in two steps as follows: At a temperature of 80 C (lower measurement point) At a temperature of 140 C (upper measurement point) The two-point calibration/adjustment ensures that operating points in between are within the calibration/ adjustment interval. The calibration/adjustment is described in detail in the MA37, MA160 service manual. YTM15MA Heating Adjustment Set 21

22 After completion of the heat-up phase (30 min.), the service technical can start the calibration/adjustment process: Procedure A : 12-minute heat-up phase (80 C) 3-minute stabilization phase (visual display) 6-minute measurement value recording (determining and entering the value) Then the device heats up to 140 C on its own. Procedure B : 12-minute heat-up phase (140 C) Approx. 3-5-minute stabilization phase (visual display) 6-minute measurement value recording (determining and entering the value) The device then calculates on its own the new parameters for the measurement values that were entered for the heating calibration/adjustment. A check of the calculated data is only possible here to a limited extent. 22 YTM15MA Heating Adjustment Set

23 6. Error Codes Certain events cause a message to appear on the display: 1. Some error messages are displayed for approx. 3 seconds (e.g. CAL-Extern : calibration canceled ). 2. Some error messages are displayed until they are acknowledged by a key (e.g. incorrect password for service access ). 3. Information messages are displayed until they are acknowledged with a key. 6.1 Deactivated Keys To prevent operating errors, only relevant functions/ keys are displayed depending on the situation. This prevents most operating errors from occurring. The following buttons are only available in specific circumstances: O T Only if there is a measured value in the zero setting range before external calibration/ adjustment. Only when there is a weight value larger than or smaller than zero. YTM15MA Heating Adjustment Set 23

24 6.2 Error Messages during Operation Value is too small. Value is too large. Passwords do not match Wrong password Error 46 Error 401 to 407 When an entered value is too low for the parameter. When an entered value is too high for the parameter. When a password does not match the previous entry. When password protection is enabled and the password was entered incorrectly. When the max. heating temperature has been briefly exceeded. Faulty heating element. Contact the Sartorius Service Center. 6.3 Calibration/Adjustment Error Messages Weight is too low. Weight is too high. Cal. data not saved. When a weight that is too light is placed during external calibration. When a weight that is too heavy is placed during external calibration. When the memory is full. 6.4 Information about Device Maintenance Maintenance interval exceeded. When the maintenance date set by the Sartorius Service Center has been exceeded. 6.5 USB Device Error Message The attached USB device is not supported. When a USB device (printer) that is not permitted by Sartorius has been connected. 24 YTM15MA Heating Adjustment Set

25 7. Care and Maintenance The adjustment disk has been calibrated according to a factory-internal test procedure. Keep the adjustment disk clean. Clean any soiling using water or a soft, lint-free cloth. Clean any coarse soiling using a brush. Do not use aggressive cleaning agents (solvents, etc.). The adjustment disk may not be scratched. Do not touch the adjustment disk with oily or greasy fingers, as this could falsify the measurement results. Ensure functional safety via regular inspection. The adjustment disk should be inspected annually if used frequently (> 1 /week). This inspection requires that you send the adjustment disk to Sartorius Service with the complete heating adjustment set. YTM15MA Heating Adjustment Set 25

26 8. Disposal Old Battery or PCB Batteries should not be disposed of as household waste. EU legislation requires its Member States to collect electrical and electronic parts and dispose of it separately from other unsorted municipal waste so that it may be recycled. Germany and several other countries have a return system or collection boxes for old batteries that conform to disposal regulations. In countries that are not members of the European Economic Area (EEA) or those without return systems or collection boxes, please contact your local authorities or a commercial disposal operator. Prior to disposal and/or scrapping of device PCBs, any batteries should be removed and disposed of in local collection boxes. 8.1 Battery Replacement If the battery installed in the GMH175 measuring device is discharged, then it must be replaced. The battery is dead when BAT appears on the display when the measuring device is switched on. 26 YTM15MA Heating Adjustment Set

27 9. Factory Calibration Certificate (Sample) Werkskalibrierzertifikat Factory Calibration Certificate Messobjekt: Temperatur-Abgleichset (YTM15MA) Messobjekt: Temperaturmessgerät ( GMH175 ) Test object: Temperature Adjustment Set (YTM15MA) Test object: Thermometer (GMH 175 ) Seriennummer: Serial number: Seriennummer: Serial number: Zertifikatsnummer: 2015/ 0034 Zertifikatsnummer: 2015/0035 Certificate number: Certificate number: Messmethode: Temperatur-Vergleichsmessung Messmethode: Widerstandsmessung, elektrisch Test method: Comparative temperature measurement Test method: Measurement of electrical resitance Messpunkte: Measuring points: Reference object 80 C, 140 C, 200 C Referenz-Objekt Meßobjekt Anzeigekorrektion Test object Display correction Messpunkte: Measuring points: 80 C, 140 C,190 C * Meßunsicherheit Raumtemperatur Referenz-Objekt Meßobjekt Anzeigekorrektion ± ± 0,5 C Meßunsicherheit Raumtemperatur ± ± 0,5 C Uncertainty of Room Temperature Reference object Test object Display Uncertainty of Room Temperature Measurement correction Measurement [ C] [ C] [ C] [ C] [ C] [ C] [ C] [ C] [ C] [ C] ,16 C ,16 C , Verwendete Prüfmittel: Referenzmessscheibe für Temperaturabgleich, Prüfmittel-Nr: Temperaturmessgerät, Prüfmittel-Nr.: TEM0456 Kalibrierheizeinheit, Prüfmittel-Nr: TSY0499 Kalibrierheizeinheit, Prüfmittel-Nr: TSY0500 Kalibrierheizeinheit, Prüfmittel-Nr: TSY0501 Verwendete Prüfmittel: Kalibrator Fluke 724, Prüfmittel-Nr: TSY0473 * - Der Temperaturwert wird gem. EN60751:1995 aus dem elektrischen Widerstand umgerechnet. Test equipment used: Test equipment used: Reference measuring disk for temperature adjustment, test equipment no.: Fluke 724 Calibrator, test equipment no.: TSY0473 Temperature measuring device, test equipment no.: TEM0456 * - the tempertaure value is given bei calculation Heating device for calibration, test equipment no.: TSY 0499 of the electrical resistance reg. IEC60751:1995 Heating device for calibration, test equipment no.: TSY 0500 Heating device for calibration, test equipment no.: TSY 0501 Rückführbar auf: Rückführbar auf: - Physikalisch-Technische Bundesanstalt (PTB) - Physikalisch-Technische Bundesanstalt (PTB) - DKD-Kalibrierlabor für Temperaturmessgeräte Traceable to: Traceable to: - Physikalisch-Technische Bundesanstalt (PTB) - Physikalisch-Technische Bundesanstalt (PTB) [German Federal Institute of Physics and Metrology] [German Federal Institute of Physics and Metrology] - DKD calibration laboratory (DKD= German calibration Service) for temperature measuring equipment Der Benutzer ist für die Einhaltung einer angemessenen Frist zur Wiederholung der Kalibrierung verantwortlich. Es wird ein Kalibrierrhythmus von 1 Jahr empfohlen; gerechnet vom Kaufdatum für die erste Rekalibrierung. The user shall be responsible for meeting reasonable repeat calibration deadlines. One-year regular calibration intervals are recommended; calculated from the buying date for the first recalibration. Das Temperatur-Abgleichset und das Temperaturmessgerät war am Tag der Kalibrierung in einwandfreiem Zustand. The Temperature Adjustment Set and the thermometer was in perfect condition on the date of initial calibration. Datum und Ort der Kalibrierung: Göttingen, Bearbeiter: Prüfer: Date and place of calibration: Prepared by: Bearbeiter Inspector: Prüfer YTM15MA Heating Adjustment Set 27

28 Inhalt Inhalt 1. Über dieses Dokument Gültigkeit Mitgeltende Dokumente Darstellungsmittel Sicherheitshinweise Bestimmungsgemäße Verwendung Allgemeine Sicherheitshinweise Gerätebeschreibung Allgemein Lieferumfang Transport Fehlermeldungen Deaktivierte Tasten Fehlermeldungen während des Betriebs Fehlermeldungen beim Kalibrieren/Justieren Information zum Warten des Gerätes Fehlermeldung USB-Geräte Pflege und Wartung Entsorgung Batteriewechsel Werkskalibrierzertifikat (Muster) Kalibrierung Allgemein Notwendigkeit einer Kalibrierung Bedingungen vor der Kalibrierung Wägeeigenschaften Heizungseigenschaften Einpunkt Temperaturabgleich (MA35) Temperaturtabelle für MA Zweipunkt-Temperaturabgleich (MA37, MA160) Kalibration (MA37, MA160) Justage der Heizung YTM15MA Heizungsabgleichset

29 Über dieses Dokument 1. Über dieses Dokument 1.1 Gültigkeit Diese Betriebsanleitung gibt Angaben zum Gebrauch, zu Wartungsarbeiten, Reparaturen und Fehlermeldungen für das Abgleichset YTM15MA. Zusätzlich ist eine Übersichtstabelle der Abgleichwerte für den MA35 in diesem Handbuch integriert. 1.2 Mitgeltende Dokumente Allgemeine Informationen: www. sartorius.com Weitere Informationen für MA37/160: Betriebsanleitung Service-Handbuch WMA001 Weitere Informationen für MA35: Betriebsanleitung Service-Handbuch WMA Darstellungsmittel Als Hinweis und zur direkten Warnung vor Gefahren sind besonders zu beachtende Textaussagen in dieser Installationsanleitung wie folgt gekennzeichnet: Dieser Hinweis kennzeichnet eine mögliche Gefährdung mit geringem Risiko, die eine mittelschwere oder leichte Körperverletzung zur Folge haben kann, wenn sie nicht vermieden wird. YTM15MA Heizungsabgleichset 29

30 Über dieses Dokument Dieses Symbol gibt einen Hinweis zu einer Funktion oder Einstellung an dem Gerät: gibt einen Hinweis zur Vorsicht beim Arbeiten kennzeichnet nützliche Informationen. Des Weiteren werden folgende Darstellungsmittel verwendet: Texte, die dieser Markierung folgen, sind Aufzählungen. t ttexte, die dieser Markierung folgen, beschreiben Tätigkeiten, die in der vorgegebenen Reihenfolge auszuführen sind. y ytexte, die dieser Markierung folgen, beschreiben das Ergebnis einer Handlung. 30 YTM15MA Heizungsabgleichset

31 Sicherheitshinweise 2. Sicherheitshinweise 2.1 Bestimmungsgemäße Verwendung Die in dieser Betriebsanleitung beschriebenen Tätigkeiten sind ausschließlich dem Sartorius Service vorbehalten (oder durch ihn ausdrücklich autorisiertem Fachpersonal). 2.2 Allgemeine Sicherheitshinweise Verbrennungsgefahr! Abgleichscheibe nicht unmittelbar nach einer Trocknung einsetzen. Eine vorhandene Einwegschale oder den Schalenträger erst im handwarmen Zustand entfernen. Die Abgleichscheibe nach einer Messung immer mit dem Entnahmewerkzeug aus dem Feuchtebestimmer nehmen oder transportieren! Die Abgleichscheibe vor oder nach der Messung auf einer sauberen, temperaturbeständigen Unterlage abkühlen lassen. Die Abgleichscheibe erst nach dem Abkühlen in die Verpackung zurücklegen und an einem staubfreien und geschützten Ort aufbewahren. YTM15MA Heizungsabgleichset 31

32 Gerätebeschreibung 3. Gerätebeschreibung 3.1 Allgemein Das Heizungsabgleichset YTM15MA besteht im wesentlichen aus einer Abgleichscheibe mit einer Spezialbeschichtung und einem Digital-Präzisionsthermometer GMH175. Beide Teile haben eine gemeinsame Seriennummer (Referenz-ID-Nr.). Diese ist im Werkskalibrierzertifikat aufgeführt. 32 YTM15MA Heizungsabgleichset

33 Gerätebeschreibung 3.2 Lieferumfang Das Heizungsabgleichset sofort nach dem Auspacken auf Vollständigkeit und eventuell sichtbare, äußere Beschädigungen überprüfen! Pos. Bezeichnung 1 Transportkoffer 2 Messgerät GMH175 3 Abgleichscheibe 4 Batterie 5 Haltegriff (Entnahmewerkzeug) 6 Messkabel 7 Werkskalibrierzertifikat mit Seriennummer (Ref.-ID-Nr.) 8 Betriebsanleitung YTM15MA Heizungsabgleichset 33

34 Transport 4. Transport Die Abgleichscheibe darf nur mit dem Haltegriff (Entnahmewerkzeug) entnommen oder transportiert werden! Die Abgleichscheibe darf nicht mit scharfkantigen Werkzeug (z.b.: Zange oder Pinzette) entnommen oder transportiert werden! Die Abgleichscheibe nicht an den Messkabeln aus dem Gerät oder der Verpackung ziehen! Die Abgleichscheibe nicht an den Messkabeln haltend transportieren! 34 YTM15MA Heizungsabgleichset

35 Kalibrierung 5. Kalibrierung 5.1 Allgemein Der zu kalibrierende Feuchtebestimmer (im Folgenden Gerät genannt) ist bei den beim Nutzer vorgefundenen Umgebungsbedingungen zu kalibrieren. Wird der Feuchtebestimmer in einer Abzugskammer betrieben, muss die Kalibrierung auch dort erfolgen. Beeinflussung von Messwerten vermeiden! Kalibrierung des Gerätes immer unter Berücksichtigung folgender Bedingungen durchführen: Kalibrierung immer in einem temperierten Bereich durchführen (Raumtemperatur = 20 C) Kalibrierung immer an einem sauberen Messplatz durchführen, stabile und waagerechte Unterlage (Tisch) nutzen. Luftzug (z.b. durch offenstehende Türen/Fenster) vermeiden. Bei Bedarf das Gerät abschirmen! Häufigen Personenverkehr vor dem Gerät vermeiden (instabile Bedingungen). Sonneneinstrahlung vermeiden. Gase oder Stäube vermeiden. Sicherheitsabstand in direkter Umgebung zum Gerät einrichten (zu allen Seiten mindestens 20 cm und über dem Gerät mindestens 1 m). YTM15MA Heizungsabgleichset 35

36 Kalibrierung 5.2 Notwendigkeit einer Kalibrierung Wird bei dem Gerät der Serie MA37 oder MA160 ein Performance Test durchgeführt (siehe Betriebsanleitung Sartorius Moisture Analyzer Modell MA37 und MA160 ), werden beide Komponenten Wägesystem und Heizeinheit gleichzeitig getestet und überprüft. Hierzu ist die Verwendung eines ReproEasy Pad erforderlich. Fällt dieser Test mehrfach negativ aus, ist dieses der wahrscheinliche Grund für eine Kalibrierung der Heizung. Bei dem Gerät MA35 entfällt der Performance Test. Hier ist nur ein Einpunktabgleich der Heizung möglich (sprechen Sie in diesem Fall vorher mit dem Sartorius Service). Eine Kalibrierung der Heizung bei einem Gerät ist ein grundlegender Eingriff. Deshalb muss vor der Kalibrierung eine genaue Analyse erfolgen, da sich bei einer möglichen Fehlkalibrierung die Messergebnisse für den Anwender negativ auswirken können. Gehen Sie bei der Analyse vor der Kalibrierung wie folgt vor: ttführen Sie den Performance Test bei den Geräten MA37/160 durch! yywenn dieser Test zweimal hintereinander fehlschlägt, ist entweder eine Kalibrierung der Heizung oder der Waage erforderlich (siehe nebenstehendes Ablaufdiagramm). 36 YTM15MA Heizungsabgleichset