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Summary of Contents for Major tech MT473
- Page 1 MT473 Voltage Tester User Manual 2018...
- Page 3 Index Page no...
- Page 4 1. Safety 1.1 International Safety Symbols Warning of a potential danger, comply with instruction manual. Caution! Dangerous voltage. Danger of electrical shock. Double insulation. Important information. Consult the instruction sheet Hazardous Voltage. Suitable for live working. This product complies with the WEEE Directive (2012/19/EU) Conforms to European Union Directives.
- Page 5 1. Safety 1.3 Warnings In order to avoid electrical shock, the valid safety and VDE regulations regarding excessive contact voltages must receive utmost attention, when working with voltages exceeding 120V (60V) DC or 50V (25V) rms AC. The values in brackets are valid for limited ranges (as for example medicine and agriculture).
- Page 6 1. Safety 1.4 The safely can no longer be insured if the instrument: • Shows obvious damage • does not carry out the desired measurements • has been stored for too long under unfavorable conditions • has been subjected lo mechanical stress during transport. All relevant statutory regulations must be adhered to when using this instrument 1.5 Safety Advices...
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Page 7: Appropriate Usage
2. Appropriate Usage The instrument may only be used under those conditions and for those purposes for which it was designed. For this reason, in particular the safety references, the technical data including environmental conditions and the usage in dry environments must be followed, When modifying or changing the instrument, the operational safety is no longer ensured. - Page 8 3. Specifications Switchable Load ~7KΩ Peak current Is (load)=150mA RCD tripping ~30mA@230V Single-pole Phase Test 100V to 1000V AC Frequency range 50 Hz to 60 Hz Rotary Field Indication Voltage range (LEDs) 100... 1000V Frequency range 50/60Hz Measurement principle Double-pole and contact electrode Safety standards EN61243-3:2014 Agency approvals...
- Page 9 4. Voltage Tester Description...
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Page 10: Operation
5. Operation 5.1 Preparing the test • Prior to every test, please ensure that the instrument is in perfect condition: • For example, keep an eye out for a broken housing or leaking batteries. • Always carry out a function test before using the voltage tester, see below. -
Page 11: Single-Pole Phase Test
5. Operation 5.3 Single-pole phase Test • The single-pole phase test is only possible when batteries are installed and in good condition. • The single-polephase test starts at an AC voltage of approx.100V (pole>100V AC). • When using single-pole phase tests to determine external conductors the display function may be impaired under certain conditions (e.g. - Page 12 5. Operation 5.6 Rotary Field Indication • The voltage testers are equipped with a double-pole rotary field indicator. • The rotary phase indication is always active. The symbols "R"or " I.:' are always displayed. However, the rotary direction can only be determined within a three-phase system.
- Page 13 5. Operation 5.7 Measurement Point Illumination Voltage testers are equipped with a measurement point illumination feature. Thus, working under bad lighting conditions (e.g. division switch cabinets) is made easier. Press button for measurement point illumination (15) on instrument rear. 5.8 Maintenance When using voltage testers in compliance with the instruction manual, no particular maintenance is required.
- Page 16 T9 Industrial Village, Sam Green Road, Tunney Ext. 9, Elandsfontein, South Africa P.O. Box 888, Isando 1600 South Africa Telephone: +27 11 872 5500 National Contact Number: 08 61 62 5678 Sales Facsimile: +27 11 822 2806 Admin Facsimile: +27 11 822 1411 E-mail: sales@major-tech.com Rev.