Model UT232 OPERATING MANUAL
Model UT232: OPERATING MANUAL TABLE OF CONTENTS TITLE Overview Unpacking Inspection Safety Information Rules For Safe Operation International Electrical Symbols The Meter Structure A.The Meter Front Structure B.The Meter Back and Bottom Structure Functional Buttons Display Symbols Measurement Operation A. AC Voltage + Frequency Measurement B. AC Current + AC Voltage Measurement C. Active Power + Phase Angle Measurement D. Apparent Power + Reactive Power Measurement E.
Model UT232: OPERATING MANUAL TABLE OF CONTENTS TITLE A. General Specifications B. Environmental Requirements Accuracy Specifications A. AC Voltage B. Frequency C. AC Current D. Active Power E. Apparent Power F. Reactive Power G. Power Factor H. Phase Angle I. Active Energy Maintenance A. General Service B.
Model UT232: OPERATING MANUAL Overview Unpacking Inspection This Operating Manual covers information on safety and cautions. Please read the relevant information carefully and observe all the Warnings and Notes strictly. Open the package case and take out the Meter. Check the following items carefully to see any missing or damaged part: Warning To avoid electric shock or personal injury, read the ìSafety Informationî and ìRules for Safe Operationî carefully before using the Meter.
Model UT232: OPERATING MANUAL Safety Information in this Operating Manual are explained on page 6. This Meter complies with the standards IEC61010: in pollution degree 2, overvoltage category (CAT. III 600V, CAT IV 300V) and double insulation. Rules For Safe Operation CAT. III: Distribution level, fixed installation, with smaller transient overvoltages than CAT. IV CAT.IV: Primary supply level, overhead lines, cable systems etc.
Model UT232: OPERATING MANUAL l l l l l l l testing leads away from the input terminals of the Meter and turn the Meter power off. Do not carry out the measurement when the Meterís back case and / or battery door is opened to avoid electric shock. When the Meter working at an effective voltage over 30V in AC, special care should be taken. Use the proper terminals and function for your measurements.
Model UT232: OPERATING MANUAL International Electrical Symbols AC (Alternating Current) Grounding Double Insulated Warning.
Model UT232: OPERATING MANUAL 1 The Meter Structure A. The Meter Front Structure (see figure 1) 2 Black Red Blue Yellow 3 4 5 6 7 8 9 10 11 12 13 Transformer Jaw: designed to pick up the AC and DC current flowing through the conductor. It could transfer current to voltage. The tested conductor must vertically go through the Jaw center. Hand Guards: to protect userís hand from touching the dangerous area.
Model UT232: OPERATING MANUAL 14 15 16 17 18 19 20 button (Sum) SAVE button (data store button) USB button LIGHT button (auto display backlight button) HOLD button LCD Display Testing Leads (Red, Black, Blue and Yellow) B.
Model UT232: OPERATING MANUAL Functional Buttons Below table indicated for information about the functional button operations. Button Operation Performed POWER Press and hold POWER for 1 second to turn the Meter on. Press POWER again to turn the Meter off. HOLD Press HOLD to enter the Hold mode in any mode, appears and the Meter beeps. Press HOLD again to exit the Hold mode to return to measurement mode, the Meter beeps and disappears. LIGHT Press LIGHT to turn the display backlight on.
Model UT232: OPERATING MANUAL Button MAX/ USB LOAD 10 Operation Performed the Meter steps through sum of active power (main display) + sum of reactive power (secondary display) and sum of power factor (main display) + sum of apparent power. Press USB once to turn the USB interface on, USB appears and the Meter beeps. Press USB again to turn the USB interface off, USB disappears and the Meter beeps. It is invalid at active energy mode Press once to enter LOAD mode, MR appears and the Meter beeps.
Model UT232: OPERATING MANUAL Button SELECT MIN / Operation Performed to exit. The maximum number of data store is 99, when it achieves 99, the Meter shows FUL. Press CLEAR to clear the stored reading in order to store next reading. At active power (main display) + phase angle (secondary display) mode, press SELECT button to step through first phase, second phase, third phase and sum of watts. At other mode, press SELECT to step through first phase, second phase and the third phase.
Model UT232: OPERATING MANUAL Display Symbols (see figure 3) Figure 3 12 Number 1 2 3 4 5 6 7 8 9 Symbol USB DC 1 2 3 h mm W 10 11 s Hz, PG, KVAr Meaning Data Output is in progress Indicator for DC measurement First phase symbol Second phase symbol Third phase symbol Unit for hour Unit for minute Watt: Sum of Watt The battery is low. Warning: To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator appears.
Model UT232: OPERATING MANUAL Number Symbol Meaning 12 MIN Minimum reading 13 Analogue Bar Graph 14 Overloading 15 Ruler 16 MAX Maximum reading 17 CLR Indicator for clear the stored reading 18 Ruler negative symbol 19 High voltage symbol 20 Indicates negative reading 21 AC Indicator for AC voltage or current 22 MR Indicator for recall the stored reading 23 FREQ Frequency symbol 24 MEM Indicator for data store 25 FUL Indicator for data stored is full 26 Data hold is active 13
Model UT232: OPERATING MANUAL Measurement Operation Preparation Press and hold POWER for one second to turn the Meter on. The default range is the last measurement range when you turned off the Meter. Replace the battery as soon as the battery indicator ì î appears on the display. Red Blue Yellow A.
Model UT232: OPERATING MANUAL The AC Voltage ranges are:15V, 100V, 300V and 600V The frequency range is:20Hz~500Hz To measure AC voltage + frequency, connect the Meter as follows: 1. Insert the red test lead into the V1 terminal, blue test lead into the V2 terminal, yellow test lead to V3 input terminal and black test lead to the COM input terminal. 2. Press the MENU to select Voltage (main display) + Frequency (secondary display) range. 3.
Model UT232: OPERATING MANUAL B. AC Current (main display) + AC Voltage (secondary display) Measurement (see figure 5) The AC current ranges are: 40A, 100A, 400A and 1000A The AC Voltage ranges are: 15V, 100V, 300V and 600V To measure AC current + AC voltage, connect the Meter as follows: 1. 2. 3. 4. Figure 5 16 5. Press the MENU to select AC Current (main display) + AC Voltage (secondary display) range. Press the lever to open the transformer jaw.
Model UT232: OPERATING MANUAL 6. 7. True RMS value. Press MIN/ , the LCD displays MAX, it starts recording the minimum AC current True RMS value. Press MAX/ , again to show the present AC current True RMS value. The display shows OL when the current of the tested conductor is higher than 1000A rms. Note When the measurement has been completed, disconnect the connection between the conductor under test and the jaw, and remove the conductor away from the transformer jaw of the Meter.
Model UT232: OPERATING MANUAL C. Active Power (main display) + Phase Angle (secondary display) Measurement The active power ranges are: 40A, 100A, 400A and 1000A The phase angle ranges are: 0∞ ~360∞ Warning To avoid damages to the Meter or harms to you, do you measure higher than AC voltage 600 v.r.s. and AC current 1000A v.r.s. To measure active power + phase angle, connect the Meter as follows: 1. Press the MENU to select Active power (main display) + Phase angle (secondary display) range. 2.
Model UT232: OPERATING MANUAL Insert red test leads to V1 input terminal. Insert blue test leads to V2 input terminal Insert yellow test leads to V3 input terminal and connecting it to every live wire of the 3 phase. Insert black test leads to COM input terminal and connect it to the neutrual wire of the 3 phase. You must specify that this connection is used only when the main transformer have STAR connection.
Model UT232: OPERATING MANUAL Insert red test leads to V1 input terminal. Insert blue test leads to V2 input terminal Insert yellow test leads to V3 input terminal and connect it to every live wire of the 3 phase.
Model UT232: OPERATING MANUAL Insert red test lead to V1, V2 or V3 input terminal corresponding to one of 1, 2 or 3 phase Insert black test leads to COM input terminal. Connecting the two test leads to live and neutual wires.
Model UT232: OPERATING MANUAL 4. When measuring 3 phases 4 wires or 3 phases 3wires:(see figure 9, 10, 11, 12, 13, 14, 15) Press SELECT to choose first phase 1, see figure 9. The double displays show the acitve power kW value and also the PG value of 1. After sum up the current power measurement value of the first phase, then press SELECT to choose the second phase 2, as figure 11 Figure 11 Figure 9 If necessary, press figure 10.
Model UT232: OPERATING MANUAL After sum up the current power meaursuremnt value of the second phase, then press SELECT again to choose the third phase 3, as figure 13. After sum up the current power measurement value of the third phase, finally press SELECT again to display the 3 phase sum of acitve power value and reactive power value.
Model UT232: OPERATING MANUAL 5. The maximum power is 600kW of single phase, OL will be displayed when it is over than that. The maximum range is 1800kW of three phase sum of active power, OL will be displayed when it is over than that. 6. Press MAX/ , the display shows MAX, it starts recording the maximum active power value. Press again to display the current active power value. 7. Press MIN/ , the display shows MIN, it starts recording the minimum active power value.
Model UT232: OPERATING MANUAL D. Apparent Power (main display) + Reactive Power (secondary display) Measurement Warning 4. When measuring 3 phase 4 wires: (see figure 17, 18, 19) Press SELECT to choose the first phase see figure 17. 1, To avoid damages to the Meter or harms to you, do you measure higher than AC voltage 600V rms and AC current 1000A rms. To test for Apparent power (main display) + Reactive power (secondary display), connect the Meter as follows: 1.
Model UT232: OPERATING MANUAL The double display shows the second phase value of apparent power kVA and reactive power Kvar. Press SELECT again to choose the third phase 3, see figure 19. Figure 19 The double display shows the third phase value of apparent power kVA and reactive power Kvar. 5. When measuring 3 phase 3 wires: The first phase and secodn phase operating method is same as three phase 4 wires. Jump over the third phase measurement. 6.
Model UT232: OPERATING MANUAL E. Power Factor (main display) + Phase Angle (secondary display) Measurement Press SELECT to choose the first phase see figure 20. 1, 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. To test for Power factor (main display) + Phase angle (secondary display), connect the Meter as follows: 1. Press the MENU to select Power factor (main display) + Phase angle (secondary display) range. 2.
Model UT232: OPERATING MANUAL The double display shows the second phase value of power factor PF and phase angle PG. Press SELECT again to choose the third phase 3, see figure 22. 5. When measuring 3 phase 3 wires: The first phase and second phase operating method is same as three phase 4 wires. Jump over the third phase measurement. 6. MAX/ and MIN/ power factor. are not valid when measuring Note Figure 22 The double display shows the third phase value of power factor PF and phase angle PG.
Model UT232: OPERATING MANUAL F. Active Energy (main display) + Time (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. To test for Active Energy (main display) + Time (secondary display), connect the Meter as follows: 1. Press the MENU to select Power factor (main display) + Phase angle (secondary display) range. 2.
Model UT232: OPERATING MANUAL The maximum readinng of acitve energy is 9999kWh. OL will be displayed when the reading is over than that. 5. MAX/ and MIN/ are not valid when measuring active energy. 6. Press CLEAR to reset the time. Note When there is no input signal, it cannot carry out active energy measurement. When there is input signal, the maximum waiting time is around 10s before timing.
Model UT232: OPERATING MANUAL True RMS Measurement and Average Value Measurement The True RMS measurement method can measure accurately the effective value of non-sine wave input signal. Average value measurement method can measure the mean value of one sine wave input signal, and then displays it as RMS value When the input waveform has distortion, measuring tolerance will be included. The total tolerance depends on the total distortion.
Model UT232: OPERATING MANUAL Specifications A. General Specifications Maximum Voltage between any Terminals and grounding: Refer to different range input protection voltage. Display: Multi LCD displays, Maximum display 9999. Ranges: Auto Overloading: Display OL. Battery Deficiency: Display .
Model UT232: OPERATING MANUAL B. Environmental Requirements The Meter is suitable for indoor use. Altitude: Operating: 2000m Storage: 10000m Temperature and humidity: Operating: 0 ~ 30 ( 85%R.H) 30 ~ 40 ( 75%R.H) 40 ~ 50 ( 45%R.H) Storage: -10 ~ +60 ( 85%R.H) Safety/ Compliances: IEC 61010 CAT.III 600V, CAT.IV 300V overvoltage and double insulation standard, pollution degree 2.
Model UT232: OPERATING MANUAL Accurate Specifications Accuracy: (a% reading + b digits), guarantee for 1 year. Operating temperature: 23 5 Operating humidity: 45~75%R.H A. AC Voltage (True RMS) Range 15V 100V 300V 600V Resolution 0.1V Accuracy (1.2%+5) Allowable Maximum overload protection voltage Input Impedance 600 RMS 10M B. Frequency Range 20Hz~500Hz 34 Resolution 1Hz Accuracy (0.
Model UT232: OPERATING MANUAL C. AC Current (True RMS) Range 40A 100A 400A 1000A Resolution Accuracy Allowable Maximum overload protection current 0.1A (2%+5) 1000A RMS 1A D. Active Power ( W=V x A x COS ) Voltages Range Current / Voltage Current Range Accuracy Resolution 40A 100A 400A 1000A 15V 0.60kW 1.50kW 6.00kW 15.00kW 100V 4.00kW 10.00kW 40.00kW 100.0kW 300V 12.00kW 30.00kW 120.0kW 300.0kW 600V 24.00kW 60.00kW 240.0kW 600.0kW (3%+5) <1000kW: 0.01kW 100kW: 0.
Model UT232: OPERATING MANUAL E. Apparent Power (VA = V x A) Voltages Range Current / Voltage Current Range Accuracy Resolution 40A 100A 400A 1000A 15V 0.60kVA 1.50kVA 6.00kVA 15.00kVA 100V 4.00kVA 10.00kVA 40.00kVA 100.0kVA (3%+5) <1000kVA: 0.01kVA 100kVA: 0.1kVA Remarks: Allowable maximum overload protection voltage: 600V RMS Allowable maximum overload protection current: 1000A RMS 36 300V 12.00kVA 30.00kVA 120.0kVA 300.0kVA 600V 24.00kVA 60.00kVA 240.0kVA 600.
Model UT232: OPERATING MANUAL F. Reactive Power (Var = V x A x SIN ) Voltages Range Current / Voltage Current Range Accuracy Resolution 40A 100A 400A 1000A 15V 0.60kVar 1.50kVar 6.00kVar 15.00kVar 100V 4.00kVar 10.00kVar 40.00kVar 100.0kVar 15V/1000A Range: (4%+10) <1000kVar: 0.01kVar 100kVar: 0.1kVar 300V 12.00kVar 30.00kVar 120.0kVar 300.0kVar Other Ranges: 600V 24.00kVar 60.00kVar 240.0kVar 600.
Model UT232: OPERATING MANUAL G. Power Factor (PF = W / VA) Range 0.3~1 (capacitive or inductive) 0.3~1 (capacitive or inductive) Accuracy 0.022 Resolution 0.001 For reference only Measuring Condition The minimum measuring current 10A The minimum measuring voltage 45V Measuring current less than 10A OR Measuring voltage less than 45V Remarks: Allowable maximum overload protection voltage: 600V RMS Allowable maximum overload protection current: 1000A RMS H.
Model UT232: OPERATING MANUAL MAINTENANCE I. Active Energy (kWh) Range 1~9999kWh Accuracy (3%+2) Resolution 0.001kWh Remarks: Allowable maximum overload protection voltage: 600V RMS Allowable maximum overload protection current: 1000A RMS This section provides basic maintenance information including battery replacement instruction. Warning Do not attempt to repair or service your Meter unless you are qualified to do so and have the relevant calibration, performance test, and service information.
Model UT232: OPERATING MANUAL high temperature, explosive, inflammable and strong magnetic field. B. Replacing the Battery (see figure 24) Warning To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator ì î appears. Make sure the transformer jaw and the tests leads are disconected from the circuit being tested before opening the case bottom. To replace the battery:. 1.
Model UT232: OPERATING MANUAL *END* This operating manual is subject to change without notice.
Model UT232: 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: info@uni-trend.com http://www.uni-trend.
