background image

 

12 

3)

 

When RS232 output is active, the auto Power off function is disabled. 

 

3.2.

 

Measurement Functions 

3.2.1.

 

AC and DC Voltage measurement. 

 

AC Voltage 

 

DC Voltage 

Figure 3-1 measuring AC and DC Voltage 

To avoid electrical shock and/or damage to the instrument, do not attempt to take any voltage 

measurement that might exceeds 1000Vdc or 1000Vac rms. 

To avoid electrical shock and/or damage to the instrument, do not apply more than 1000Vdc or 
1000Vac rms between the common terminal and the earth ground 

Voltage is the difference in electrical potential between two points. The polarity of ac (alternating 
current) voltage varies over time; the polarity of dc (direct current) voltage is constant. 

To measure ac or dc voltage (set up and connect the Meter as shown in Figure 3-1): 

Set the rotary switch to the position of 

V

 

1)

 

Press SELECT key to select between AC and DC voltage mode. 

2)

 

Connect the black and red test leads to the COM and V terminals respectively. 

3)

 

Connect the test leads tip in parallel with the circuit to be measured. 

4)

 

Read the voltage value on the main-display and read the frequency of AC signal on the sub-

display. 

NOTE: 

Summary of Contents for AX-176

Page 1: ...Model AX 176 INSTRUCTION MANUAL...

Page 2: ...1 DATA HOLD mode 10 3 1 2 Manual ranging and Autorange mode 10 3 1 3 True RMS measurement 11 3 1 4 Relative measurement mode 11 3 1 5 Analog indication bar 11 3 1 6 Auto power off setting 11 3 2 Meas...

Page 3: ...19 4 2 1 AC Voltage 19 4 2 2 DC Voltage 19 4 2 3 Frequency 19 4 2 4 Duty cycle 20 4 2 5 Resistance 20 4 2 6 Diode Test 20 4 2 7 Continuity Check 20 4 2 8 Capacitance 20 4 2 9 Temperature 20 4 2 10 Cur...

Page 4: ...nic Protected electronic equipment Equipment connected to source circuits in which measures are taken to limit transient overvoltage to an appropriately low level Any high voltage low energy source de...

Page 5: ...e the autoranging mode To avoid damages to the instrument do not exceed the maximum limits of the input values shown in the technical specifications tebles When the multimeter is linked to measurement...

Page 6: ...s Before opening up the instrument always disconnect from all sources of electric current and make sure you are not charged with static electricity which may destroy internal components Any adjustment...

Page 7: ...g measurement functions 4 V Hz Terminal receiving the red test lead for voltage resistance capacitance frequency temperature diode and continuity measurements 5 uA mA Terminal receiving the red test l...

Page 8: ...splay maximum minimum dta 9 H The meter is in Data Hold mode When delay hold is selected the HOLD symbol will be blinking for 6 seconds 10 REL The meter is in Relative Measurement mode 11 P MAX P MIN...

Page 9: ...he sub display will show the value measured at the time when pressing the key it is called the initial value and the main display shows the relative value that will be equivalent to the present value...

Page 10: ...1 second Only the true RMS PEAK meter 3 FUNCTION DESCRIPTION 3 1 General Function 3 1 1 DATA HOLD mode Data Hold mode makes the meter stop updating the display Enabling Data Hold function in autorang...

Page 11: ...in the desired function touch the test leads to the circuit on which you want future measurement to be based 2 Press REL key to store the measured value and activate the relative measurement mode The...

Page 12: ...mmon terminal and the earth ground Voltage is the difference in electrical potential between two points The polarity of ac alternating current voltage varies over time the polarity of dc direct curren...

Page 13: ...damage to the instrument To measure frequency or Duty Cycle set up and connect the Meter as shown in Figure 3 2 1 Set the rotary switch to the Hz range 2 Insert the black and red test leads into the...

Page 14: ...sistance reading represents the total resistance of all path between the probes To measure resistance set up the Meter as shown in figure 3 3 1 Set the rotary switch to Range 2 Connect the black and r...

Page 15: ...3 Connect the black and red test leads to the COM and V terminals respectively 4 For forwards bias readings on any semiconductor component place the red test lead tip on the component s anode and pla...

Page 16: ...p the Meter as shown in Figure 3 5 1 Set the rotary switch to range 2 Press the SELECT key twice to activate Continuity Check 3 Connect the black and red test leads to the COM and terminals respective...

Page 17: ...en measurement on 660uF 66mF To improve the accuracy of measurements less than 660nF subtract the residual capacitance of the Meter and leads 3 2 7 Current measurement A mA uA C Hz V OFF F COM A V Hz...

Page 18: ...e or burns Do not make temperature measurement in microwave ovens To measure temperature 1 Set the rotary switch to C F range and the LCD will show the current environment temperature 2 Press SELECT k...

Page 19: ...0 1x specified accuracy C 18 C or 28 C Max Voltage between terminals and earth ground 1000V AC rms or 1000V DC Fuse Protection A and mA F 0 63A 1000V 10 3x38 A F10A 1000V 10 3x38 Sample Rate 3 times...

Page 20: ...0V 100mV 0 8 5 1000V 1V 1 0 2 4 2 3 Frequency Logic frequency 1Hz 1MHz Function Range ResolutionaCCURACY Dok adno Frequency 6Hz 66MHz 66 00Hz 0 01Hz 0 1 3 660 0Hz 0 1Hz 6 600kHz 0 001kHz 66 00kHz 0 01...

Page 21: ...0nF 6 6mF 1 F 66mF 10 F Unspecified 4 2 9 Current Range Resolutions Accuracy 55 0 C 0 1 C 5 0 4 C 1 400 C 2 0 3 C 401 1000 C 1 C 2 0 Note The specifications of temperature don t include thermocouple e...

Page 22: ...ase with a damp cloth and mild detergent Do not use abrasives or solvents Dirt or moisture in the terminals can affect readings To clean the terminals Turn the meter off and remove all test leads Shak...

Page 23: ...switch to the OFF position 2 Disconnect test leads and or any connectors from the terminals 3 Use a screwdriver to unlock the two screws on the battery cover 4 Take out the battery cover from the mete...

Reviews: