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Summary of Contents for Major tech MT935
- Page 1 INSTRUCTION MANUAL MT935 PHASE ROTATION METER WITH ROTARY FIELD DIRECTION...
- Page 2 Introduction The Motor and Phase Rotation meter is a handheld, battery-operated instrument designed to detect the rotary field of three-phase systems and determine motor rotation direction. Symbols The following symbols appear on the Motor & Phase Rotation Meter or in this manual.
- Page 3 Connect the test probes to the three main phases. Press the ON/OFF button. The green ON indicator shows that the instrument is ready for testing. Either the clockwise or counter clockwise rotary indicator illuminates showing the type of rotary field direction present. The rotary indicator lights even if the neutral conductor, N, is connected instead of the test lead input jacks.
- Page 4 See table 2 for the minimum motor diameter and number of pole pair to obtain a reliable test result. Table 2. Reliable Motor Test Requirements Min. Ø of Angel Between Rotary Number Of Rotary Field Number of Motorcase poles (1/min) at Frequency (Hz) pole pair ⅔...
- Page 5 Secure the battery access lid back in position with the screw. Safety Information Caution identifies conditions and actions that may damage the MT935. Warning identifies conditions and actions that pose hazard to the user. Read First: Safety Information To avoid possible electric shock or fire, do the following: •...
- Page 6 Weight 130g Electrical Safety DIN VDE 0411,IEC 61010 DIN, VDE 0413-7, IEC 61557/EN61557-7 Protection Level CAT III 600V Rotary Field Direction Nominal Voltage Rotary 1 to 400V AC Direction Nominal Voltage Phase 120 to 400V Indirection Frequency 2 to 400Hz Test Current (per phase) Less than 3.5mA Non-Contact Rotary Field Indication Frequency...
- Page 8 MAJOR TECH (PTY) LTD South Africa Australia www.major-tech.com www.majortech.com.au sales@major-tech.com info@majortech.com.au...
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