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18.8. Frequency Count Accuracy

1 - Range
2- Resolution
3 - Accuracy
Display updates 3 times/second (at >10Hz)

18.9. Diode Test and Continuity Test

• Diode test indication:

Displays voltage drop across device, open circuit voltage: 1.1v-1.6v; short circuit current :<0.2mA
(typical value). Accuracy± (2%r1count)

• Continuity test indication:

Continuous audible tone for test resistance<50
Open circuit voltage: <0.45v
Short circuit current:130μA typical
Overload protection: 600V (peak)

18.10. Basic Technical Specification of Output

(applicable to temperature range from 18 to 28 ℃, 10% to 70%RH , accuracy± (2%1count), within
one year after calibration).

Summary of Contents for AX-C708

Page 1: ... on the meter and in this manual are explained below Warning To avoid possible electric shock or personal injury Do not use the meter if it is damaged Before using the meter inspect the case Look for cracks or missing plastic Pay particular attention to the insulation surrounding the connectors Make sure the battery door is closed and latched before operating the meter Remove test leads from the m...

Page 2: ...tegory11 Pollution Degree 2 per IEC61010 refers to the level of Impulse Withstand Voltage protection provided Typical locations include Plug and the connecting electric equipments home appliance convenient tools domestic plug plugs 10m distant from type 3 circuit or 20m distant from type 4 circuit 3 Measuring Electrical Parameters The proper sequence for taking measurements follows 1 Plug the test...

Page 3: ...ck 2 Set the rotary function switch to Ω 3 Press the blue button so that the symbol is on the display 4 Touch the red probe to the anode and the black probe to the cathode side with band or bands The meter should indicate the appropriate diode voltage drop 5 Reverse the probes The meter displays OL indicating a high impedance 6 The diode is good if it passes the tests in steps 4 and 5 7 Using Disp...

Page 4: ...displays unit mV or V Press LEFT or RIGHT to select the set digits for output Press UP or DOWN to change the numerical value of the set digits The value can do carry or number decrement automatically Hold the pressed key in one second and the value will keep varying Press HOLD to turn on off the output followed by displaying the symbol ON or OFF 12 Frequency Output Insert one end of the test lead ...

Page 5: ...connection with a transmitter thus being able to prolong the battery life 14 DC current output Insert one end of the test lead into the Hi OUTPUT jack and COM jack of the meter and connect the other end to the input of the user s instrument Set the rotary function switch to and displays unit mA Press REL to select set value of manual waveform output and display unit mA 25 _set or 100 _set Among th...

Page 6: ... auto light off function press DOWN or UP to change the value Default 30 seconds FCTY Return to default value Press and SAVE is on main display indicating returning to default 16 Replacing the Batteries Warning To avoid electrical shock or personal injury Remove test leads from the meter before opening the battery door Close and latch the battery door before using the meter Note The new and old Ba...

Page 7: ...mA jack Using an ohmmeter check the resistance between the meter test leads If the resistance is about 1Ω the fuse is good An open reading means that fuse F2 is blown Fuse F1 is blown if the outputs do not alter with the change of the fixed value and replace it as follows 1 Remove the test leads from the meter and turn the meter OFF 2 With a standard blade hand screwdriver turn each battery door s...

Page 8: ...mpedance 10 MΩ nominal 100pF Common mode rejection ratio 50Hz or 60Hz 100dB Normal mode rejection ratio 50Hz or 60Hz 45dB Overvoltage protection 600Vp p 18 3 DC mV Measurement 1 Range 2 Resolution 3 Accuracy Measuring Impedance 10 MΩ nominal Overvoltage protection 600Vp p ...

Page 9: ...nge 400mV is only confined to manual range AC conversion average value Measuring Impedance 10 MΩ nominal 100pF Common mode rejection ratio 50Hz or 60Hz 100dB Overvoltage protection 600Vp p 18 5 DC current measurement 1 Range 2 Resolution 3 Accuracy Overload protection 0 5A 250V fast blow fuse Measuring Impedance 1Ω ...

Page 10: ...are valid from 5 to 100 of amplitude range Overload protection 0 5A 250V fast blow fuse Measuring Impedance 1Ω 18 7 Resistance measurement 1 Range 2 Resolution 3 Accuracy Open circuit voltage 0 4v Guide lead resistance is excluded in the accuracy Overvoltage protection 600Vp p ...

Page 11: ...tage 1 1v 1 6v short circuit current 0 2mA typical value Accuracy 2 reading 1count Continuity test indication Continuous audible tone for test resistance 50 Open circuit voltage 0 45v Short circuit current 130μA typical Overload protection 600V peak 18 10 Basic Technical Specification of Output applicable to temperature range from 18 to 28 10 to 70 RH accuracy 2 reading 1count within one year afte...

Page 12: ...V batteries 4 1 5 V alkaline AAA batteries or 4 1 5 V Ni MH AAA batteries Maximum Voltage 600Vp p Maximum Voltage between all input jacks and earth ground 30V DC Maximum Voltage between all output jacks and earth ground Operating temperature 0 50 Operating relative humidity 80 RH Storage temperature 10 55 ...

Page 13: ...avoid electric shock do not touch the charging jack when the testing circuit has been connected to the meter Caution Make sure that the batteries loaded in are Ni MH batteries when charging the meter Turn off the power when charging connect the plug into the charging jack in the top of the meter and turn on the charger s power ahead of the meter s power Use the charger manufactured by our company ...

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