UNI-T UT233 Operating Manual

Copyright 2007 Uni-Trend Group Limited. All rights reserved. Manufacturer: Uni-Trend Technology (Dongguan) Limited Dong Fang Da Dao Bei Shan Dong Fang Industrial Development District Hu Men Town, Dongguan City Guang Dong Province China Postal Code: 523 925 Headquarters: Uni-Trend Group Limited Rm901, 9/F, Nanyang Plaza 57 Hung To Road Kwun Tong Kowloon, Hong Kong Tel: (852) 2950 9168 Fax: (852) 2950 9303 Email: [email protected] http://www.uni-trend.com ...

23 When testing has been completed, disconnect the connection between the testing leads and the circuit under test and remove testing leads from the input terminals. Note ...

F. Frequency Hz (main display) + AC Voltage (left secondary display) + AC Current (right secondary display) Measurement Warning To avoid damages to the Meter or harms to you, do you measure higher than AC voltage 600V rms and AC current 1000A rms. Frequency Measurement only measures the frequency of voltage signal not he frequency of current signal. To test for Frequency Hz (main display) + AC Voltage (left secondary display) + AC Current (right secondary display), connect the Meter as follows: 1. 2. Press the MENU to select Frequency Hz (main displa ...

After sum up the current power measurement value of the first phase, then press SELECT to choose the second phase 2, as figure 9. Figure 9 The triple displays shows the value of acitve power kW, AC voltage V and AC current A of 2. If ncessary, press to get the sum of watts as figure 10. Figure 11 After sum up the current power meaursuremnt value of the second phase, then press SELECT again to choose the third phase 3, as figure 11. The triple displays shows the value of acitve power KW, AC voltage V and AC current A of 3. If ncessary, press to get the sum ...

36 Negative phase sequence is shown as below figure. When V1 input terminal, V2 input terminal and V3 input terminal base on the below table connecting A phase, B phase and C phase, all three phases voltage are over 100V, LCD displays negative phase sequence result, as figure 36. 3. A, B, C phases V1 A B C V2 C A B V3 B C A Input Terminal Checking Result Negative phase sequence A B C V2 input terminal corresponding voltage V1 input terminal corresponding voltage. V3 input terminal corresponding voltage Figure 36 When any one phaseís voltage has no singal or les ...

Figure 15 Apparent Power (main display) + AC Voltage (left secondary display) + AC Current (right secondary display) Measurement B. Warning Press the MENU to select Apparent Power (main display) + AC Voltage (left secondary display) + AC Current (right secondary display) range. Press the lever to open the transformer jaw, and clamp them to the corrresponding phase of tested conductor. If user needs to mesaure any phase of the 3 phase, then clamp them to that phaseís conductor. The connecting method of 3 phases 4 wires, 3 phases 3 wires or single phase 2 wires ...