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18 

4.2.8.

 

Linear Frequency 

Range 

Resolution 

Accuracy 

6kHZ  

0,001HZ  

±(0,05% +8)  

10KHZ  

0,01HZ  

Above accuracies can be guaranteed withni 10%

~

100% of the full range.  

 

5. MAINTENANCE 

This section provides basic maintenance information, including fuse and battery replacement 
instructions. Do not attempt to repair or service your Meter unless you are qualified to do so and 
have the relevant calibration, performance test, and service information. 

 

5.1.

 

General Maintenance 

To avoid electrical shock or damage to the meter, do not get water inside the case.  

Remove the test leads and any input signals before opening the case. 

 

Periodically wipe the case 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. 

Shake out any dirt that may be in the terminals. 

Soak a new swab with a cleaning and oiling agent (such as WD-40) 

Work the swab around in each terminal. The oiling agent insulates the terminals from moisture-
related contamination. 

 

5.2.

 

Fuse replacement 

Before replacing the fuse, disconnect test Leeds and/o any connectors from any circuit under 

test. To prevent damage or injury replace the fuse only with specified ratings. 

 

1)

 

Set rotary switch to the OFF position 

2)

 

Disconnect test leads and/or any connectors from the terminals. 

3)

 

Use a screwdriver to unlock the four screws on the rear cover 

4)

 

Take out the rear cover from the meter. 

5)

 

Remove the fuse by gently prying one end loose, then sliding the fuse out of its bracket. 

6)

 

Install the replacement fuses only with specified ratings: F 0.63A/1000V

Ø

10.3x38 and  

F 10A/1000V

Ø

10.3x3x38 

7)

 

Rejoin the rear cover and tighten the screws. 

 

 

Summary of Contents for AX-174

Page 1: ...AX 174 INSTRUCTION...

Page 2: ...D Display 8 2 3 Key pad 9 3 FUNCTION DESCRIPTION 9 3 1 general Functions 9 3 1 1 Auto scan mode 9 3 1 2 DATA HOLD mode 10 3 1 3 Manual ranging and Auto range mode 10 3 1 4 True RMS measurement 11 3 1...

Page 3: ...ifications 15 4 2 Measurement specifications 15 4 2 1 AC Voltage 16 4 2 2 DC Voltage 16 4 2 3 Resistance 16 4 2 4 Continuity Check 16 4 2 5 Diode Test 16 4 2 6 Capacitance 17 4 2 7 Current 17 4 2 8 Li...

Page 4: ...e low energy source derived from a highwinding resistance transformer such as the high voltage section of a copier CAT II Single phase receptacle connected loads Applience portale tools and Rother hou...

Page 5: ...using probes keep your fingers behind the finger guards When making connections connect the common test lead before connecting the live test lead when disconnecting disconnect the live test lead befo...

Page 6: ...carried out on the meter while it is live should be carried out only by appropriately qualified personnel after having taken into account the instructions in this present manual A qualified person is...

Page 7: ...ults and various symbols 2 Keypad Measurement function keys 3 Rotary switch Used for selecting measurement functions 4 Terminal receiving the red test lead for voltage resistance capacitance diode and...

Page 8: ...selects the range with the best resolution 8 MANU The meter is in the Manual Range mode in which the user selects the range 9 HOLD When HOLD functon is enabled When delay hold is selected the HOLD sy...

Page 9: ...st for 2 seconds the meter will delay for 6 seconds than enters HOLD mode 2 3 4 Hz During the voltage or current measurement by pressing Hz key the meter will enter the linear frequency measurement st...

Page 10: ...ill delay for 6 seconds that enters HOLD mode 3 1 3 Manual ranging and Auto range mode The Meter has both manual ranging and auto range options In the auto range mode the Meter selects the best range...

Page 11: ...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 that...

Page 12: ...rms Detection distance 10cm It s related to the source value Figure 3 Non contact electric field detector 3 2 3 Resistance measurement To avoid electrical shock and or damage to the instrument disconn...

Page 13: ...ntinuous beeping will indicate it Figure 3 4 Checking the Continuity 3 2 5 Diode Test To avoid electrical shock and or damage to the instrument disconnect circuit Power and discharge all high voltage...

Page 14: ...uto scan mode or press the SELECT key to activate capacitance measuring mode 3 Connect the black and red test leads to the COM and terminals respectively 4 Connect the test leads to the capacitor bein...

Page 15: ...0V CAT III and 600V CAT IV Pollution degree 2 Altitude 2000m Operating temperature 0 40 C 32 F 122 F 80 RH 10 C non condensing Storage temperature 10 60 C 14 F 140 F 70 RH battery removed Temperature...

Page 16: ...that will not affect the accuracy of measurement 4 2 2 DC Voltage DCV Range Resolution Accuracy 600mV 0 1mV 0 5 5 6V 1mV 0 8 5 60V 10mV 0 8 5 600V 100mV 0 8 5 1000V 1V 1 0 2 4 2 3 Resistance Range Re...

Page 17: ...olution Accuracy 600 A 0 1 A 1 5 5 6000 A 1 A 60mA 0 01mA 1 8 8 600mA 0 1mA 10A 10mA 2 8 Above accuracies can be guaranteed within 5 100 of the full range The true RMS meter has residual value within...

Page 18: ...dings To clean the terminals Turn the meter off and remove all test leads Shake out any dirt that may be in the terminals Soak a new swab with a cleaning and oiling agent such as WD 40 Work the swab a...

Page 19: ...e input terminals 1 Set rotary 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...

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