Sanyo 550 Maintenance Methods, Interior and exterior cleaning, Cleaning of cabinet drains

Page 21

6.2. MAINTENANCE METHODS

6.2.1Interior and exterior cleaning

The cabinet interior and exterior should be kept clean and free from deposits.

The exterior surface is easily cleaned with warm soapy water. When cleaning any stainless steel surface do not use any cleaning agent containing chloride or hypochlorite ions as these will cause corrosion.

6.2.2Cleaning of cabinet drain(s)

Either one or two drains are situated centrally in the base of the treatment chamber. Access to the treatment chamber involves the removal of the working chamber base. Remove the front cover and slide out the working chamber base. Any accumulation of contaminants from the test sample can cause the treatment chamber to block. The drain should be checked regularly to ensure that particles are not collecting around it.

6.2.3Inspection and replacement of the wet wick(s)

Access to the sensors and wicks is through the sliding panel in the right hand wall of the working chamber. See fig. 4 for the position of the wet and dry bulb sensors.

The accuracy of all wet and dry bulb systems for the control of relative humidity is totally dependent on the wet wick. The rate of evaporation from the wick determines the cooling of the sensor and hence the temperature differential (wet bulb depression) of the control or recording instrument. Adherence to the following notes is recommended for all serious work at controlled relative humidities.

a)Wick must be clean - handle with care and clean hands - store in a clean place - change regularly (once a month).

b)Wick must cover the entire exposed length of the sensor ie: extend well beyond the sensitive tip and fit tightly to the sensor.

c)Wick must be the correct length to fit over the sensor and well down into the rubber wick reservoir, to prevent the high speed, necessary for correct evaporation, from blowing the wick out of the reservoir.

d)If wicking quality of the material is suspect, test by cutting off 1 cm of dry material and dropping into a cup of distilled water. Sample should wet and sink within 2 seconds.

Often wicking quality can be restored by boiling for a few minutes in clean distilled . water.

Figure 4.

RECORDER

CONTROLLER

DRYRT

WETRT

WETRT

DRYRT

 

/white\

/white

 

Temperature sensor positions (as viewed from inside working chamber)

20

Page 20 Page 22
Image 21
Page 20 Page 22
Contents Sanyo Gallenkamp Environmental ChamberCustomer De Ronde Programming system Contents Part ONE the Cabinet Sanyo Gallenkamp service & maintenance facilities Health & Safety at WorkIntroduction Commissioning U.K. Customers onlyCabinet Data Specification PhysicalInsulation Exterior/finishShelf False roofSpecification Performance Optional FacilitiesCF1 Digital Channel Cooling Main Format 550 Digital ChannelsSystem Channel Digital Channel Cooling AuxiliaryUser Programmable Channel Digital Channel 8 Voltage Free Terminal VFTPrinciple and Airflow DESCRIPTI0NHeating Temperature ControlCooling Refrigeration unit controlRelative Humidity RH Vapour phase generationRelative Humidity Determination Relative Humidity ControlRelative Humidity Decrease Accessories & Spares InstallationPositioning Cabinets not requiring on-site commissioningInstrument compartment Power Supply Ambient TemperatureMains Interrupt Bridge DrainWetwicks Distilled Water SupplyTest Load Protection EitherSafety Thermostat 13. RS232 ConnectorCable Port VentReset Amber pushbutton INDICATORS/PUSHBUTTONSControl Panel Instrumentation MainsCabinet and Program Shut Down Cabinet and Program Start UPTo Start the Cabinet To Shut Down the Cabinet Normal SequenceMaintenance Schedule Maintenance and CareWeekly or between tests MonthInterior and exterior cleaning Maintenance MethodsCleaning of cabinet drains Inspection and replacement of the wet wicksClean the refrigeration condenser Check safety thermostatLubrication Distilled water filterAppendix 1 Part Numbers Maintenance InstallationAppendix 2 REC/W Water System OperationSystem draining Deioniser replacementPart 2 Format 550 Instructions ContentsFormat digital channels Introduction to FormatHow to use these instructions Menu system Getting startedUsing the on-line help Using the data entry windowsFunction keys Types of data entry field Status barPage General Operating Sequence Steady State Mode Condition settingCondition monitoring Resetting steady state setpointsEnding manual control General Operating Sequence Running a Program General Operating Sequence Entering a NEW ProgramCondition C %RH Status Logging Main MenuWriting a Program How to use Format programming sheetsEntering the data into the programmer Selecting digital channels when you know bestLoading and saving programs Log Running a programHolding a program Program Monitor WindowProgram completion Program deletionView program graph Introduction to Data Logging Starting Data LoggingLog Stopping Data Logging Displaying ResultsLoading into Spreadsheets Setting Alarms Introduction to AlarmsPage Introduction C0MPUTER InterfacingComputer Interactive Host PC System RequirementsInstalling the Security KEY InstallationConfiguring the Host Software Setting UP OFF-LINE Chamber IntelligenceNetwork Monitoring Mode Main MenuSteady State Control Program LoggingPrintouts Program Computer interactive interfacing main protocol Physical Layer DefinitionCommunications Frame Definition Header Packet CountSerial Number Length Data Block Length Compatibility with RS485 Multi-Controller ConfigurationSerial Number Data BlockController Configuration Controller Configuration RequestPacket Flow Summary Functional Layer DefinitionStatus Request 129Page Open File for Reading Read Data Close FileWrite Block to File Open File for WritingSET Controller to Remote Access Mode SET Controller to Local Access ModeSET/CHANGE Steady State Condition ENABLE/DISABLE Guaranteed Soak ENABLE/DISABLE Manual HoldDigital Channel Description Cable connections Computer RS232 Format 550 socket Pin D typeCDR Support software Operating temperature Appendix 1 Technical SpecificationOperator interface data entry Control LoopsProgram Run Options AlarmsMonitoring displays Data LoggingLoop Instructions Appendix 2 Program Looping and Nested LoopsExample Temp Hum LS Rep Digital Channels Ddhhmmss CEvent statement time = event actual time total looping time Calculation for Succeeding EventsEffects on the Running Timebase Display Nested LoopsSeconds Example of Nested Loops Format Programming Sheet Appendix 3 Format 550 Programming SheetsLEU ORE Contact Information

550 specifications

The Sanyo 550 is a remarkable piece of technology, encapsulating innovative features and advanced characteristics that cater to a variety of users. This device, designed with meticulous attention to detail, is particularly renowned for its versatility and user-friendly interface.

One of the standout features of the Sanyo 550 is its impressive display technology. The high-resolution screen offers vibrant colors and sharp images, making it ideal for both professional presentations and personal entertainment. Whether you're watching videos or reviewing documents, the clarity provided by the Sanyo 550's display enhances the overall user experience.

In terms of connectivity, the Sanyo 550 excels with multiple options available, including USB ports, Bluetooth, and Wi-Fi capabilities. These features allow users to seamlessly connect various devices, transfer files effortlessly, and access the internet without hassle. This level of connectivity ensures that the Sanyo 550 can function as a central hub for all your multimedia needs, whether for work or leisure.

The Sanyo 550 also incorporates advanced battery technology. With its long-lasting power supply, users can enjoy extended usage without frequent recharging. This is particularly beneficial for individuals who are constantly on the go, as it allows for uninterrupted productivity and entertainment.

Moreover, the Sanyo 550 is designed with portability in mind. Its lightweight and compact design make it easy to carry, fitting comfortably in a bag or briefcase. This feature is particularly appealing for professionals who travel frequently or students who need a reliable device for classes and study sessions.

The device is also equipped with powerful processing capabilities, enabling smooth multitasking and efficient performance. Whether running demanding applications or performing routine tasks, the Sanyo 550 maintains high performance levels, ensuring a satisfying user experience.

Lastly, the Sanyo 550 places emphasis on user satisfaction through its intuitive operating system. The interface is designed to be straightforward and accessible, allowing users of all tech-savvy levels to navigate with ease. Overall, the Sanyo 550 represents a blend of cutting-edge technology, portability, and user-centered design, making it a compelling choice for anyone in the market for a reliable and feature-rich device.
Top Page Image Contents