Megger OTS100AF User Manual
Laboratory oil test set
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- Quick reference manual (13 pages) ,
- User manual (42 pages) ,
- Quick start manual (10 pages)
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Summary of Contents for Megger OTS100AF
- Page 1 OTS100AF, OTS80AF & OTS60AF Laboratory Oil Test Set USER GUIDE...
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Page 2: Safety Warnings
Safety warnings and precautions must be read and understood before the OTS100AF/OTS80AF/OTS60AF is used. They must be observed during use. The OTS100AF/80AF/60AF must only be used in the way intended and for the stated purposes described by ■ ■ Megger. -
Page 3: Symbols Used On This Instrument
Symbols used on this instrument Caution: refer to accompanying notes Danger high voltage, risk of electrical shock DC voltage AC voltage Equipment complies with current EU Directives Earth terminal Fuse USB terminal Equipment complies with ‘C tick’ requirements Do not dispose of in the waste stream... -
Page 4: Table Of Contents
Test vessel motorised stirrer Preventive maintenance General Cleaning Care for OTS electrodes New electrodes Electrode storage Cleaning oxidising/dirty electrodes Technical specifications OTS100AF/80AF/60AF technical specification VCM100D/VCM80D voltage meters technical specification Storage and transportation Accessories and equipment Optional Spares Repair and warranty... -
Page 5: General Description
General description Megger’s OTS100AF/80AF/60AF Oil test sets are laboratory liquid dielectric breakdown testers. They are fully automatic, line powered and facilitate accurate breakdown voltage tests on mineral, ester and silicon insulating oils. The precision test vessel sets the accuracy standard for the liquid insulation test industry. -
Page 6: Features And Benefits
■ ■ Applications The OTS100AF/80AF/60AF are used for determining the dielectric strength of high voltage insulating liquids, such as the insulating oils used in transformers, switchgear and other electrical apparatus. The dielectric breakdown voltage is a measure of the insulating ability of a liquid to withstand electrical stress. Contaminants such as cellulosic fibres, conducting particles, dirt, and water reduce breakdown voltage of an insulating liquid. -
Page 7: Instrument Controls And Indicators
Instrument controls and indicators Keypad printer panel The control panel, illustrated below, is located to the front right side of the instrument and contains a QVGA colour screen (1), navigation keypad with ‘OK’ (6) button and a ‘TEST’ (4) button. The operation is user friendly and driven from six top level windows. -
Page 8: Rear Panel
Rear panel The rear panel illustrated below accommodates all connections to the instrument with the exception of a front facing USB interface. Item description Ground connection with cable lug IEC line power socket Fuses USB Type A socket USB Type B socket Line power is applied via an IEC socket (2) and is fused (3). -
Page 9: Preparations For Use
Calibration The OTS100AF/80AF/60AF are calibrated in the factory prior to delivery so there is no need to calibrate on initial setup. The VCM100D/VCM80D voltage check devices can be used to confirm the output voltage of the instrument by reading the voltage directly at the electrode before running tests. -
Page 10: Test Vessel Mortised Stirrer
Megger supplies as standard with the stirrer lid assembly the large red impeller which is useful for very dirty oil. This has larger blades to help ensure the effective circulation of any particulates between the electrodes during the test so that the full potential of their effect on breakdown voltage may be assessed. -
Page 11: Operating Instructions
Operating instructions Top level tabs The user is presented with a set of six tabbed, top level windows as depicted below which facilitate instrument control. Left and right arrow keys navigate between tabs. Home Setup File Information Tools Language The home tab contains summary information for each showing the selected automatic test standard, ID of the asset the insulating liquid comes from, the type of insulator, electrode gap and the stirrer if required. -
Page 12: Navigation And Character Entry
Navigation and Character Entry The keypad consists of arrow keys surrounding an ‘OK’ button used for navigating the screens and selecting functions and options. These six buttons fully control the instrument. Within each user interface window the up and down arrow buttons are used to navigate up and down the functions listed on the left side of the screen. -
Page 13: Performing A Breakdown Test
Favourite test standards It is important to setup favourite test standards from the standards library to avoid navigating thorough the entire list each time you want to change to a different test. To do this navigate to the ‘Tools’ top level window and select ‘Manage test standards’. -
Page 14: Test Results
Test results At the end of any test results are shown on the screen. A typical example is the ASTM D 1816-04A test. This image shows the complete on-screen information presented to the user however the screen size is naturally smaller so a slider function enables the user to navigate through the result and print it if required. -
Page 15: Basic Memory Functions
Basic memory functions The internal memory is limited to fifty test records where a record represents a full result of one of the programmed standard tests. Best practice is to backup internal results on a daily basis by saving onto a USB memory device. When saving to USB memory device, a filename in the format of a maximum of eight characters is required and the filename entered must only contain characters A-Z, a-z and 0-9. -
Page 16: Print Quality And Changing Paper
Test vessel motorised stirrer Megger’s motorised stirrer is integrated into a modified lid assembly and simply replaces the vessel lid. Power is connected via a flush mounted rear insert and is disconnected as the stirrer assembly is lifted. This unit is not user... -
Page 17: Preventive Maintenance
Opening the OTS100AF/80AF/60AF is strictly forbidden and will constitute a breach of warrantee. There is no need for any tools to be used with this instrument other than the supplied gauges and magnetic bean retriever. Printer cover locks can be turned using a suitable coin. -
Page 18: Technical Specifications
Technical Specification OTS100AF/80AF/60AF The following technical specifications apply to the OTS100AF/80AF/60AF: Test voltage -50 to 0 to 50 kV, -40 to 0 to 40 kV, -30 to 0 to 30 kV @ 61.8 Hz Voltage resolution 0.1 kV Voltage accuracy ±1% ±2 digits... -
Page 19: Storage And Transportation
1.8 kg Storage and transportation The OTS100AF/80AF/60AF are a precision instruments that generates high voltage to 100 kV and needs to be transported and stored carefully. The unit should be stored in a room or area where the environment is within the temperature range of -30 ºC to 65 ºC... -
Page 20: Spares
Only Megger supplied accessories can be used with the OTS range. Non approved equip- ment cannot be guaranteed to work with the OTS. Factory fitted accessories depending on order configuration Internal printer ■ ■ Electrode sets – IEC, ASTM and full electrode set containing one of each type of electrode ■... -
Page 21: Repair And Warranty
A number of independent companies have been approved for repair work on most Megger products, using genuine Megger spare parts. Consult the Appointed Distributor / Agent regarding spare parts, repair facilities and advice on the best course of action to take. - Page 22 End of life disposal WEEE The crossed out wheeled bin placed on the Megger products is a reminder not to dispose of the product at the end of it’s product life with general waste. Megger is registered in the UK as a Producer of Electrical and Electronic Equipment.
- Page 23 T +46 8 510 195 00 F +46 8 510 195 95 E svinfo@megger.com This instrument is manufactured in the United Kingdom. The company reserves the right to change the specification or design without prior notice. Megger is a registered trademark Part No. OTS100AF_OTS80AF_OTS60AF_en_V09 www.megger.com...
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