Uni-T UT171A [5/20] Ut171a b c instructions ut171a b c instructions

Содержание

• Contents 2
• Ut171a b c instructions 2
• I overview 3
• Ii accessories 3
• Iii safety operation criterion 3
• Ut171a b c instructions 3
• Iv electrical symbols 4
• Ut171a b c instructions ut171a b c instructions 4
• V comprehensive specification 4
• Ut171a b c instructions ut171a b c instructions 5
• Vi appearance structure refer to figure 1 vii displayer refer to figure 2 5
• Îbb b b b 5
• Ut171a b c instructions ut171a b c instructions 6
• Viii knob of function selection and button 6
• Ut171a b c instructions ut171a b c instructions 7
• Ix measuring operation instructions 8
• Measuring ac dc voltage see figure 3 8
• Ut171a b c instructions 8
• Measuring of resistance conductivity g figure 4a 9
• Ut171a b c instructions ut171a b c instructions 9
• Measuring of circuit switching 10
• See figure 5 10
• Ut171a b c instructions ut171a b c instructions 10
• Diode test see figure 6 11
• Measuring of capacitance 11
• See figure 7 11
• Ut171a b c instructions ut171a b c instructions 11
• Measuring of frequency duty ratio 12
• Measuring temperature 12
• See figure 8 12
• See figure 9 12
• Ut171a b c instructions ut171a b c instructions 12
• A note 13
• Measuring ac dc see figure 10 13
• Ut171a b c instructions ut171a b c instructions 13
• A 600a aca dca external input 14
• A caution 14
• Current calipers measurement see figure 11 14
• Non contact ac voltage sensing see figure 12 14
• Ut171a b c instructions ut171a b c instructions 14
• Other functions 15
• Square wave output see figure 13 15
• Ut171a b c instructions ut171a b c instructions 15
• A caution 16
• Alnput impedance 16
• Measuring of dc voltage 16
• Ut171a b c instructions ut171a b c instructions 16
• X technical indexes 16
• Measuring of ac current 17
• Measuring of ac voltage 17
• Measuring of dc current 17
• Ut171a b c instructions ut171a b c instructions 17
• Measuring of capacitance 18
• Measuring of frequency duty ratio cycle 18
• Measuring of resistance conductance applicable to ut171b c only 18
• Ut171a b c instructions ut171a b c instructions 18
• Measuring of temperature applicable to ut171b c only 19
• Measuring with current caliper ut171c only 19
• Square wave output ut171c only 19
• Ut171a b c instructions ut171a b c instructions 19
• Ut171a b c instructions ut171a b c instructions 20
• Xi maintenance and repair 20

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UT171A B C Instructions VI Appearance Structure Refer to Figure 1 Shell 2 Displayer 3 4 7 Function key 5 Range knob switch 8 Alarm luminous diode 1 6 Input terminal for measuring 9 USB cable Bluetooth interface NCV sensing terminal UT171A B C Instructions VII Displayer Refer to Figure 2 Z EES Peak O Q O OkHzCo F naiN Av0 Mw3 H mjuVAs 2 AC DC A MkQHzmVUAnSFNCV ÎBB B B B RCL UT171A positive display No 1 2 Symbol Specification RCL l Data recall I STO Data storage 3 Data hold 4 LoZ AC low impedance 5 Negative value 6 VFC UT171B negative display UT171 C The default TFT lattice Figure 1 5 Figure 2 Measuring of voltage to frequency converter Alarm for high voltage 7 8 9 0 Automatic shutdown 10 Auto Automatic range 11 Peak Peak measuring 12 MIN AVG MAX Prompt for measuring minimum average maximum value 13 ACDC AC DC measurement 14 Relative measuring 15 mV V Voltage unit millivolt and volt 16 pA mA A Circuit on off measurement Current microamp milliampere and ampere 6