User manual Heiland electronic GmbH SquameScan 850
Contents
1. Heiland electronic GmbH SquameScan 850 Determination of stratum corneum protein content on tape strippings User manual Version 1 1 Content 1 General information nee ae Ha 4 2 Safety regulations 4 3 Area 0f applieationsiins een een Ha a 5 4 Instrument description eee eee eee 5 5 Installation ccccecceeecc cece KET E C ROT EE KET E RT 2 7 POWER eT 7 A A es ak Sate aa 8 8 Care of AAA rear nieder 9 9 Calibration e A 9 10 GUA naeh 10 11 Tecnica s 1 aa RER 11 SquameScan 850 user manual Ver 1 1 3 1 General information Dear Customer thank you for purchasing a Heiland product In order to become familiar with the operation of your instrument please read these instructions carefully and completely before your first use Packing The packaging of the instrument is shock absorbent and should be kept for the case of further shipping Shipment Use only the original packaging for transportation and shipment First lay the cardboard on the surface of the base unit and fold it Then place the instrument and the cardboard into the shipment box Finally wrap the power supply and the carrier for calibration with air bubble foil and place them into the box opposite to the instrument 2 Safety regulations e Assure that the main voltage and the frequency is the same as the one indicated on the identification label of the power supply unit e Itis not permitted to exchange the power supply2. against another one without the permission of the manufacturer e Always keep the instrument and the power supply in a dry place and never immerse it in any kind of liquid e To prevent electric shock or damages do not open neither the SquameScan nor the power supply There are no user serviceable parts inside 3 Area of applications The instrument is designed to measure indirect the stratum corneum SC protein content on D Squame tape strips Determination is done by measuring the optical absorption of the strip at about 850nm infrared light The value is displayed in and could be translated into protein content by using a simple transfer function y a x b The coefficients a and b have to be determined for each study by comparing the optical absorption to the former used method e g colorimetrically method Trial examinations done by R Voegeli Pentapharm Ltd Basel Switzerland have given values a 1 27 1 40 and b 0 66 1 78 Application of this instrument in other fields is not allowed without our written permission 4 Instrument description Figure 1 Components of the instrument Button to reset the display Display Cassette nn Base unit SquameScan 850 user manual Ver 1 1 5 Sensor Light sourc The id label is located on the bottom of the base unit The base unit contains the infrared IR lamps IR Light is switched on as long as the unit is supplied with power but the light emitting cou
3. 4 dots in the display To reactivate the measurement simply move the cassette If the absorption is too large the display will flash 888 8 Care of instrument Unplug the power supply when not in use for long time periods or before your start cleaning the instrument The housing and especially the reading area should only be cleaned with a lightly dampened soft cloth or chamois if necessary with the addition of a mild cleaner Do not use solvents or abrasive materials The light source and sensor should only be cleaned from dust with a soft brush or compressed air The cassette could be sanitised by use of alcohol For necessary repairs send the SquameScan and the accessories to manufacturer or authorised service centre Any unauthorised opening will invalidate your guarantee CAUTION To prevent an electric shock do not open the power supply There are no user serviceable parts inside 9 Calibration check The instrument is calibrated at the factory Certification is shipped with the instrument in the form of a short carrier containing one light grey glass On the carrier the absorbency of the glass is recorded Do not touch the glass with bare hands and avoid scratches on the glass Keep it dust free Otherwise you will cause incorrect readings Checking the calibration The instrument should be acclimated to ambient conditions and have been connected to the power source for a minimum of 2 minutes before checking the cal
4. cals or liquids Strong magnetic fields caused by e g transformers voltage stabilisers or loud speakers Electronic devices that emit strong interference like dimmers Secure enough working space around the meter 6 Power up Assure that the main voltage of the wall plug is in the range of the power supply unit indicated on the identification label of this unit Connect the power supply first to the SquameScan and then to the wall plug The instrument switches on automatically in a stand by mode Wait at least 2 minutes before taking the first reading SquameScan 850 user manual Ver 1 1 7 N Reading Hints to avoid false measurement Place the D Squames always with the adhesive side up into the cassette Use a pair of tweezers to insert and remove the D Squames to ensure that they are free from dust and finger prints Always secure that the carrier rests in a position centred to the sensor Place an unused D Squame into the tray lettered Ref Up to 10 samples could be placed into the trays lettered 1 to 10 Before you take a series of reading centre the tray Ref to the sensor and press the MIN button Then measure the remaining samples If the display toggles between 2 values e g 7 8 and 7 9 you may choose any of the two values as the result If no cassette is inserted or it is not moved the instrument switches into the standby mode after one minute This mode is signalled by
5. h x width x height Weight Voltage requirements Power consumption Measurement spot Reading geometry Spectral response Measurement range Resolution Reading variation Repeat accuracy Temperature range Relative humidity Accessory 200 x 100 x 100 mm 1 kg 9 15V DC 3 VA 13 mm directed directed 750 950nm 0 50 absorption 0 1 31 0 5 17 27 C 0 70 strip to proof calibration Power supply Appendix Communication parameters Communication port type USB 2 emulating a serial com port with 9600 Baud 8 Databit 2 Stopbit The measurement value is transmitted automatically by the instrument every time there is a stable value for about 1 second Following syntax is used Character No possible Char meaning Sign 0 9 Value MSB 0 9 Value 0 9 Value 0 9 Value LSB 0 4 O Qn E GKM CR End of string Unit Percentage T O Mode Transmission StandBy Examples T 7 8 7 8 absorption 0 Stand By Issue date February 2006 Technical data may change without notice SquameScan 850 user manual Ver 1 1 11 Heiland electronic GmbH Schulstrasse 8 0 D 35579 Wetzlar Heiland electronic Germany Wetzlar phone 49 6441 26978 fax 49 6441 26988 email heielec t online de Internet http www heilandelectronic de
6. ibration Shift the carrier with the tray called 0 centred to the sensor Reset the display to zero by pressing the button Min Centre the tray with the glass to the sensor and check if the displayed value is in a tolerance of 0 3 equal to 2 digits if greater variations are encountered please check first if this might be caused by dust or impurities on the glass If not so the instrument and all accessories should be sent to the manufacturer or authorised service centre since a new calibration is not possible without the necessary testing devices SquameScan 850 user manual Ver 1 1 9 10 Guarantee This instrument is fully guaranteed for the period of two years from date of purchase Proof of purchase is the invoice or receipt Damages due to improper handling or unauthorised access are excluded This instrument has been carefully manufactured and tested using defect free materials and state of the art technology In case of a failure the instrument should be returned free of charge to the manufacturer or authorised service centre accompanied by proof of purchase For the warranted period the manufacturer will pay cost of replacement parts and repair However the manufacturer reserves the right to exchange the instrument Important in case of shipping back the instrument for repair please include all parts i e the SquameScan power supply and the calibration strip 10 11 Technical data Dimensions lengt
7. ld not be detected by human eye The cassette takes the D Squames They are inserted with the adhesive side up The sensor is protected against ambient light by a case that limits also the analysed area to a diameter of 13mm Inserting and shifting the cassette activates the display The LED s beside the 3 digit display show the selected measurement mode T Transmission measurement Values are displayed in units of 0 1 absorption The MIN switch resets the display to a value of 0 0 it is only active while the display is on All other switches have no functions except on special versions The unit is equipped with an USB port to transfer the data to a PC The connector is located on the rear side A suited cable to connect the instrument to a PC is delivered with this option Also a share ware software for collecting the measurement values and transferring them to other Windows applications is delivered with the densitometer 5 Installation Location conditions Store and use this instrument only in rooms with a temperature from 17 C to 27 C degree Celsius and relative humidity from 0 to 70 percent Fast temperature variations may cause condensation inside the instrument Wait at least 30 minutes after moving the instrument from cold to warm environment more than 10 C temperature difference Keep the SquameScan away from these environment Direct Sunlight Instruments that emit heat Aggressive chemi
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