UNI-T TU13BA Operating Manual Download

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IKII-T

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UT 139A/B/C OPERATING MANUAL

The User Manual is subject to modification without further notice.

UT139A/B/C OPERATING MANUAL

UNI-T

M anufacturer:
Uni-Trend Technology(C hina) Limited
No 6,  Gong Ye Bei  1st Road
Songshan  Lake  National  High-Tech  Industrial
Development Zone,  Dongguan  City
Guangdong  Province
China
Postal  Code:523 808

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.com

Summary of Contents for TU13BA

Page 1: ...UT139A B C ...

Page 2: ...ew 1 II Accessory 1 III Safety Operation Regulation 1 IV Electric Symbol 2 V Comprehensive Specification 3 VI Appearance Structure 4 VII LCD Display 5 VIII Knobs and Keys for Range Selection 7 IX Measurement Instruction 9 X Technical Index 16 XI Upkeep and Maintenance 22 ...

Page 3: ... inspect the insulation layer of test pen for intactness confirming no breakage and broken line 3 When LCD display shows the icon it is required to replace the battery in time to ensure the measurement accuracy 4 Range switch shall be set at the correct measurement position UT139A B C OPERATING MANUAL UNI T 5 In case of electric shock and damage to the instrument signals being measured shall not e...

Page 4: ...ly applicable for UT139B C 1 99 9 Diode about 2 1V UT139A and 3 2V UT139B C displaying OL in case of overrange Range auto manual Polarity auto Working temperature 0 C 40 C Relative humidity 75 when 0 C 30 C and 50 when 30 C 40 C Storage temperature 10 C 50 C 5 Electromagnetic compatibility In 1V m radio frequency RF field Overall accuracy specified accuracy 5 of range and no specified index for RF...

Page 5: ... 139A LCD A MkQmtyA Q NCV Auto Range MAX MIN iLIMI T UT139A B C OPERATING MANUAL 1 kjnii 7 H Diode measurement prompt 8 Circuit on off measurement prompt 9 A Relative measurement prompt 10 Q k Q M Q Resistance units Ohm Kilohm and Megohm 11 Hz kHz MHZ requency units Hz kHz MHz 12 Duty ratio measurement unit 13 m V V Voltage units mV V 14 jA m A A Current units jA mA A 15 nF M F m F Capacitance uni...

Page 6: ... value and then the difference between the measured value and reference value will be displayed after another press you ll exit the relative measurement mode Only applicable for V Q C T andHfr The backlight will be illuminated when the time of pressing button is 2s after about 15s the backlight will be automatically turned off the backlight will be turned off if pressing the key 2s when the backli...

Page 7: ...easurement See Figure 4a Connect the instrument with the load in parallel for measurement Notes The display will show OL when the measured resistance open circuit or resistance value exceeds the maximum range of the instrument Prior to measuring online resistance it is necessary to switch off all powers in the circuits to be measured and release all residual charges to ensure the measurement accur...

Page 8: ...T139B C To prevent personal injury it is not allowed to input the voltage higher than DC 60V or AC 30V 11 UT139A B C OPERATING MANUAL UNI T 5 Capacitance measurement Only applicable for UT139B C See Figure 7 The instrument when without any input will display a fixed reading which is the internal fixed capacitance value When measuring small range gear capacitance the above value shall be subtracted...

Page 9: ...ached current clamp Only applicable for UT139C MIMA i QJTUH C R MKE RAHCC IUX U N WAX W KLA UCHT 2Sj BEL A Hi x M I D HCH0AICHJ S 5U E C T U C T Figure 10 UT139A B C OPERATING MANUAL UNI T 9 NCV Non contact AC voltage sensing See Figure 12 If need to detect whether there is a AC voltage or electromagnetic field allow the front end of the instrument be close to the object to be sensed The analog qu...

Page 10: ...tinuous sounds about 1min prior to auto power off and then make one long sound prior to power off When the auto power off function is cancelled 5 sounds will be made by the buzzer every 15min Low voltage detection it is used to detect the internal VDD When the voltage is lower than 2 4V the battery under voltage symbol will be displayed and the normal operation is available while when lower than 2...

Page 11: ... 200 0Q 400 0Q 600 00 1 0 2 1 0 2 0 10 2 000kQ 4 000k0 6 000k0 0 8 2 10 20 00kQ 40 00k0 60 00k0 100 200 OkO 400 OkO 600 OkO 1000 2 000MQ 4 OOOMO 6 OOOMO 1 2 3 1kO 20 00MQ 4Q OOMO 6Q OOMO 1 2 3 1 5 5 10k0 17 UT139A B C OPERATING MANUAL UNI T A Range measured value displayed value short circuit value of test pen Open circuit about 1V Overload protection 600V PTC 4 Circuit on off H diode measurement ...

Page 12: ...0 1 o 1 1 C 3 0 100 C 1 0 3 100 1000 C 2 0 3 T 40 1832 F 40 32 F 1 F 5 32 212 F 1 5 5 212 1832 F 2 5 5 19 UT139A B C OPERATING MANUAL UNI T Over load protection 600V PTC Remark The point type K Ni Cr and Ni Si thermocouple is only applicable for the measurement of temperature under 230 C 446 F 8 DC current measurement Range Accuracy Resolution UT139A UT139B UT139C UT139A UT139B C uA 200 0m A 400 0...

Page 13: ...intenance For upkeep and maintenance wet cloth and mild cleanser rather than abrasive or solution shall be used to clean the meter housing Please stop using and send for maintenance in case of any abnormal condition about the instrument The inspection or maintenance for instrument if necessary shall be performed by the qualified professional maintenance personnel or designated maintenance departme...

Page 14: ...i Trend Technology China Limited No 6 Gong Ye Bei 1st Road Songshan Lake National High Tech Industrial Development Zone Dongguan City Guangdong Province China Postal Code 523 808 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 com ...

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