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480300 Datasheet(PDF) 1 Page - Extech Instruments Corporation. |
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480300 Datasheet(HTML) 1 Page - Extech Instruments Corporation. |
1 / 2 page 480300 Ver. 1.5 4/01 User's Manual Phase Rotation Tester Model 480300 Introduction Congratulations on your purchase of Extech’s Phase Rotation Tester. This professional meter, with proper care, will provide years of safe reliable service. Specifications Signal Input Voltage 100VAC up to 660VAC max., 3 minute limit over 500VAC. Signal Frequency Range 45 to 70 Hz. Circuit Structure All electronic Operating Temperature 0oC to 50oC (32oF to 122oF) Operating Humidity Less than 90% RH. Fuse Rating 250mA / 250V Power Supply Uses connection to external equipment for power Power Consumption approx. 7mA @ 500V. Dimension 3.9 x 1.9 x 1.0” (100 x 50 x 25mm) Weight 0.33 lbs. (150g) Standard Accessories 40cm test leads with alligator clips and Instruction Manual Operation The Phase Rotation function determines if the 3 phases are live and the direction a motor will turn if connected as indicated in Table 1 below. 1. Connect the three test leads to the 3 phase AC power source 2. Observe that all three lights (L1, L2, L3) are active 3. Observe the directional indication lights. 4. If the direction indicated is counter-clockwise, reconnect any two wires until the clockwise indicator is lighted. 5. If the clockwise indicator is lighted, label the power source "L1, L2, L3" (R, S, T) L1 L2 L3 R S T |
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