Related Manuals for Novasina LabSwift-aw
Summary of Contents for Novasina LabSwift-aw
- Page 1 aw-Messgerät / aw measuring instrument / Appareil de mesure aw Operating Instructions Leading the market thanks to INNOVATIVE solutions and sensor technology...
- Page 2 © Novasina AG, printed at 2010 in Switzerland Technische Änderungen vorbehalten Technical data subject to modification Sous réserve de modifications techniques...
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Page 3: Table Of Contents
10. Technical data ..........................30 10.1.Technical specification of LabSwift-aw ..................30 10.2.Humidity / water acitvity standards ..................31 11. Troubleshooting ........................... 31 11.1. What is wrong, when..? ......................31 11.2. Error message screens ......................32 12. Menu structure of the LabSwift-aw ..................... 33... -
Page 4: Introduction
(water activity) measuring. To get the most out of all the possibilities of your Novasina LabSwift-aw and to guarantee safe, reliable operation, please read these operating instructions before setting the unit into operation carefully. -
Page 5: General Product Description
50 years. The integrated, resistive electrolytic LabSwift-aw sensor is based on the new chemical substance of the Novasina „Novalyte Technology“, which achieves an outstanding accuracy and reproducibility. -
Page 6: System Architecture
SD-card. The mains are supplying the whole electronics with power. The LabSwift-aw does not dispose of an internal temperature control, but has a surface temperature sensor based on an infrared measurement. For che- cking and adjusting the aW values, humidity standards (see chapter 6) can be used. - Page 7 The logger function is activated. The SD-card must not be removed. The symbol flashes if the SD-card is not disposable. A LabSwift-aw is used as a stand-alone device. The power supply for the LabSwift-aw is done by an external power cable or by an optional Lithium-Ion battery.
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Page 8: Standard Scope Of Delivery
Note: Further information are available from your local distributor or on the Novasina homepage (filter systems). Lithium-Ion Battery For the LabSwift-aw device a Lithium-Ion battery is available. This allows a mobile use of the instrument for more than 20 hours at places without electric supply. -
Page 9: Putting Into Operation
The equipment must be installed in a laboratory on an even surface, avoiding vibrations, strong heat radiation, air flow and dust. The LabSwift-aw device shall be put on a sufficiently big and even surface. Chose an installation place without any vibrations, heat and cold radiation, air flow and dust. - Page 10 3.3.3. Switching over the measurement display The LabSwift-aw has 2 different display modes for the current or stable aw- value. The mode can be selected by the function button „Actual/Stable“. If no stable value is reached, the symbol „ - -.- „ is displayed in the „Stable“-view.
- Page 11 In order to avoid any loss of data stored on the SD-card, switch always off the LabSwift-aw before the power supply is interrupted. Note: Thanks to the use of modern technology, the power consumption is extremely low. Therefore we recommend to always keep the LabSwift-aw switched on when connected to the power supply.
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Page 12: Description Of Instrument Functions
Description of Instrument Functions The LabSwift-aw system is a simple to use laboratory measurement instrument, which can be powered with a Lithium-Ion rechargeable battery (option). The device can be adjusted to the user’s needs by the parameter settings explained in this chapter. -
Page 13: Configuration Menu
• Button [Actual/Stable]: Switchover of the display A switchover is made between the actual measurement values and the stored stable value. • Button [Actual/Stable] (push button for a longer time): Information display On the upper line of the info display, the measurement number, which is used for the definition of the data name on the SD-card is displayed. - Page 14 4.2.2. Submenu „Stability factor“ - „* STAB“ After starting a measurement, the analysis phase of the aw measurement is activated. The observation time, during which the aw-value variation has to be < 0.001 a can be optimised for each sample. This is, together with a constant temperature during the measurement, the most important criteria for an accurate, reliable and stable value.
- Page 15 Novasina humidity standards „SAL-T“. For this purpose various SAL-T humidity standards are enclosed to each LabSwift-aw. This multiple use salt tablets can be inserted at the place of a sample inside the measurement chamber and generate well defined aw values as for example 0.113 aw, 0.328 aw, 0.576 aw, 0.753 aw, 0.843 aw or...
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Page 16: Reset To Factory Settings
For an optimal display reading the contrast can be adapted individually. LC-Display contrast: 0..9 „UNIT“ The LabSwift-aw can display the measured values (results) in various units. „UNIT H“ Humidity / AW: aw-value or relative humidity in % RH „UNIT T“... -
Page 17: Water Activity Measurement
Water activity measurement 5.1. Carrying out „aw“-measurements • Switch on the LabSwift-aw as described in chapter 3.2.. • The system carries out a self-test („S TST“). Thereby the software version is shown on the upper display line. • After the self-test the sensor is warming up („WARMUP“). Has the warm- up finished the instrument is ready for the first aw-measurements of a sample. -
Page 18: Activate The Stability Observation Factor
30 seconds! (That can be interrupted by pushing any key) In this case, the sample should be removed as quick as possible from the measurement chamber of the LabSwift-aw to prevent a condensation inside the chamber. Otherwise this could lead to a limitation of the measurement accuracy for a longer period. -
Page 19: Important Notes About The Sensor
Tip : Let the LabSwift-aw running all the time. In this way you safe time during the warm-up of a restart. The energy consumption is very low. 5.3. Important Notes About The Sensor The sensor supplied with the Novasina LabSwift-aw was factory tested and then calibrated at the following six a -value reference points : 0.11aw, 0.33aw,... -
Page 20: Function Principle Of Stability Observation
!! Measurements up to +/- 1.000 aw The new sensor of the LabSwift-aw is capable of measurements up to 1.00 aw (100%rh). A built-in heating system protects the measuring cell from saturation and therefore against destruction. -
Page 21: Setting The Analysing Factor
Every LabSwift-aw , as well as every new replacement sensor „CM-2“ is delivered already factory calibrated at 6 points: 0.11, 0.33, 0.58, 0.75, 0.84 and 0.90 with a factory certificate. A LabSwift-aw has its full accuracy after the exchange of a new sensor, without calibration by the customer. Nevertheless for the best performance of your instrument we recommend you to verify the sensor after the mounting. -
Page 22: The Calibration Process
Generally a recalibration at several aw-value points is simple to handle thanks to the unique Novasina SAL-T humidity standards. 6.2. The Calibration Process Before calibrating the instrument, the following points should be considered: •... -
Page 23: Clearing Of The Calibration Points „Cal-Clr
To deactivate the password protection the settings can be set on „0000“. TIP: Store the password on a secured place! Attention : A forgotten password means to send the sensor or the instrument back to Novasina (Switzerland). There is no way to reset the sensor! -
Page 24: The „Sd" Card
7. The „SD Memory card“ as information memory The LabSwift-aw allows the recording of measurement data and measurement protocols on a commercial SD-card. These recorded data files can be viewed using a text editor and subsequently be imported to e.g. Excel. With the optional PC software NovaLog MC the data can be displayed graphically. -
Page 25: Name And Format Of The Files
Detailed information concerning the data format are available on demand at Novasina AG. The battery To the LabSwift-aw instrument there is a Lithium-Ion battery available. This allows the operation of the instrument at places without power supply for over 20 hours. -
Page 26: Maintenance
!! The instrument is always energized if a battery is mounted. The battery module should only be changed or repaird by a Novasina dealer. No other battery type can be used because the used battery contains a security relevant protective circuit. -
Page 27: Cleaning Of The Cm-2 Aw-Cell
There are no general rules for the periodic control of the system. This mainly depends on the product character, the frequency of measurement, further ambient conditions and the aging of the sensor. Novasina recommends the following steps: •... - Page 28 Novasina provides filters for the protection of the measuring sensor against alcohol, aromes, acids, base, etc. Please read our special information sheet or contact your local Novasina dealer. 9.5.1. General rule for protection Chemical filters have to be used if the admissible workplace concentrations (MAK-values) are exceeded.
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Page 29: Changing Of The Cm-2 Cell
9.6. Replacing a CM-2 Sensor Unit Note: The LabSwift-aw contains susceptible electronic assemblies. Please pay attention to protect these items from discharge. You can achieve this by discharging yourself at a grounded, conductive surface (e.g. radiator) before you open the housing of the instrument. -
Page 30: Technical Data
> 20 h (at 23°C) Instrument standards : Tested CE standards The LabSwift-aw instrument fulfills the followed actual CE standards, EC 61000-6-1:2005, EN 61000-6-1:2005, IEC 61000-6-3: 2006, EN 61000-6-3:2007 Emitted electromagnetic radiatons with frequency in the range of 320...340 Mhz might have... -
Page 31: Humidity / Water Acitvity Standards
10.2. Equilibrium humidity values of the SAL-T humidity source Bez. des Novasina EU Gef. Farbe Chemische % relative Feuchte in Relation Literatur Standards Klasse Symbole zur Remperatur (x / 100 in a Referenz Salz 15°C 20°C 25°C 30°C SAL-T / 4... -
Page 32: Error Message Screens
11.2. Error message screens If any error message appears on the LabSwift-aw screen, please proceed as follows: Please write down the error message carefully. Switch the instrument off and restart. If the error message recurs, please follow the instructions on the table and/or contact your Novasina representative (www.novasina.com) - Page 34 Notizen/Notes/Notes...
- Page 35 Notizen/Notes/Notes...
- Page 36 In case of any further questions, Novasina and its agencies will be happy to advise you at any time. your Novasina team...
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