UNI-T UT267B Operating Manual Download Page 1 | Manualshive

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P/N:110401103632

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Summary of Contents for UT267B

Page 1: ...P N 110401103632 ...

Page 2: ...hnical Specifications 9 1 Reference and Operating Conditions 9 2 General Specifications 11 3 General Differences and Performance Indexes under Reference Conditions 16 IV Structure of Meter 17 V Operating Instructions 18 1 Power On Off 18 2 Backlight Control 18 Contents ...

Page 3: ... VII Other Items and Notes 32 VIII Product Checklist 35 Thank you for purchasing our product UT267B intelligent three phase digital phase volt ampere meter also known as three phase digital volt ampere meter In order to use the product properly please follow instructions below Please read user manual carefully Strictly follow safety rules and notes mentioned in this manual Warnings ...

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Page 5: ...ions of wiring equipments ect which all together turn this kind of The meter designed with latest materials for shell pattern and anti vibration anti skidding high insulation protection jacket can offer 240dots 160dots and dynamic display together with vector diagram indication thus presenting users luxurious and elegant exterior structure It is equipped with RS232 and available for data storage o...

Page 6: ...II Electrical Symbols Extreme danger The operator must strictly observe safety rules to avoid electric shock personal injury or accidents Danger The operator must follow safety rules to avoid electric shock personal injury or accidents Warning Strictly adhere to safety rules to avoid any personal injury or equipment damage Alternate Current AC direct Current DC Dual Insulation 23 1 10 40 40 60 80 ...

Page 7: ...ons Functions To measure three phase AC voltage current phase between two voltages currents or both frequency phase sequence active and reactive power apparent power power factor sum of current vector to differentiate wiring groups of transformer inductive and capacitive circuits to test secondary circuits and bus differential protection system to read out differential protection relation between ...

Page 8: ...flashes from left to right Reverse U1 U2 U3 or I1 I2 I3 Cursor flashes from right to left Power Factor 0 001 Sum of Current Vector 1mA Data Storage 500 sets Rs232 Interface With RS232 all data transferred into PC for further data management and analysis Connection line RS232 connection line 1 8 meters long Power Consumption Max 80mA consumed with backlight on 10 hours for battery life 50mA with ba...

Page 9: ...re Length 2m 5mm Working Temperature and Humidity 10 40 80 Rh Storage Temperature and Humidity 10 60 70 Rh Input Impedance Input impedance for measuring voltage 2M Withstand Voltage meter circuits and shell able to withstand AC voltage1000V 50Hz for 1mins when input Sine wave Insulation For circuits and protected shell 100M Structure Double Insulation coupled with vibration proof insulation jacket...

Page 10: ...e Current Phase Angle Active Power Reactive Power Apparent Power Frequency Power Factor Notes1 Phase angle differences should be less than 3 under the working conditions 6 is for phase angle tolerance between 5mA 10mA IV Structure of Meter 1 USB RS232 Interface 2 Vibration Proof Insulation Jacket 3 LCD Display 4 Functional Button Zone 5 Three Phase Voltage Input Terminals 6 Current Input Terminal ...

Page 11: ...afe use Do not use the meter on dangerous sites Install the battery according to the manual Do not simultaneously press 2 buttons or more in case of invalid operation 1 Power On Off Press ON to power on and LCD displays Press OFF button to power off the meter will automatically power off 15 minutes later after power on 2 Backlight Control Press button after power on to control the backlight which ...

Page 12: ...f active and reactive power apparent power power factor frequency three phase current vector measurement Figure B or Right button to access phase sequence status Figure C Left button to display vector gram Figure D or Up button to back to voltage current phase measuring mode Particularly to mention is that three phase power and power factor in figure B correspond to those of U1I1 U2I2 U3I3 ...

Page 13: ...elations U1U2 U2U3 U3U1 I1I2 I2I3 I3I1 U1I1 U2I2 U3I3 the former phase of signal always precedes the latter Voltage terminals U1 U2 U3 are named the same with red marks on current clamps The Current clamping direction should accord with those of red marks during phase measuring This meter can measure three phase voltage and current phase angle between voltages currents and both frequency active an...

Page 14: ...I1 phase angle is displayed ranging from 0 90 it measured load will be diagnosed as inductive it is capacitive load with scope from 270 360 it is positive phase sequence and has the same polarity with phase angles all close to120 otherwise positive phase sequence and reverse polarity is obtained with phase angle close to120 and 300 it may caused by wrong current clamping or wiring connection other...

Page 15: ...nection Figures shown as below 1 Single Phase Voltage Current Phase Angle Frequency Power Measurement 2 Three phase Four Wire Voltage Current PhaseAngle and Sequence Frequency Power and Power Factor Measurement ...

Page 16: ...ons such as history lookup data recall save report sheet history printing can all be performed The more data the meter saves more time it will take to read out History data can be saved in Txt or Excel format VI Battery Replacement Note Please ensure correct polarity when installing the battery otherwise it causes damage to the meter It is prohibited to change batteries on dangerous sites You must...

Page 17: ...to loosen one bolt away from the battery cover and open it 4 Replace old batteries with new ones and ensure right polarity is selected 5 Close the battery cover and tighten the bolt 6 Press ON button to check if the battery is successfully replaced if not repeat operations from the second step 7 Take the battery out if the mete is not in use for long time Tight Loose Battery cover ...

Page 18: ...h coupled with lubricant eg WD 40 lubricant instead of rough cloth or the corrosive are expected to use for the clearing Please clean again just before use 3 The meter can be used to measure secondary circuits and low voltage loop however not suggested to measure current in high voltage circuits in case of electric shock 4 Three Phase Four Wire phase angle under three phase load balance 120 120 12...

Page 19: ...orrectly attached the displayed phase difference will be 180 that is to increment by 180 based on reference values above Note VIII Product Checklist The Meter Giftbox Current Clamps System Software Disk RS232 Cable Test leads Battery User Manual Warranty Card Product Certificate 1 1 3 1 1 1 8 meters 4 one for each type yellow green red black 6 PCS Alkaline dry battery 1 5V AA 1 ...

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