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1. Safety Information

To ensure that the meter is used safely,  follow all of the safety and
operation instructions in this manual.  If the meter is not used as
described in the manual, the safety features of the meter might be
impaired.

• Do not use the meter if the meter or the test leads look damaged,

or if you suspect that the meter is not operating properly.

• Turn off the power to the circuit under test before cutting,

unsoldering, or breaking the circuit.  Small amounts of current
can be dangerous.

• Use caution when working above 60VDC or 30VAC rms.  Such

voltages pose a shock hazard.

• When using the test lead, keep your fingers behind the guards on

the test lead.

• Disconnect the live test lead before disconnecting the common

test lead.

• Check the main function dial and make sure it is at the correct

position before each measurement.

• Do not perform resistance, capacitance, temperature, diode and

continuity test on a live power system.

• Do not apply voltage between the test terminals and test terminal

to ground that exceed the maximum limit record in this manual.

• Keep the fingers after the protection ring when measuring

through the clamp.

• Change the battery when the “    ” symbol appears to avoid

incorrect data.

• Use the DMM indoor, altitude up to 6,562 ft. (2,000m) and

temperatures between 41

O

F and 104

O

F (5

O

C - 40

O

C).  Maximum

relative humidity 80% for temperatures up to 88

O

F (31

O

C),

decreasing linearly to 50% relative humidity at 104

O

F (40

O

C).

• In locations subject to radio frequency interface, the product may

malfunction.  It will reset automatically when leaving that
environment.

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Summary of Contents for ST-3030

Page 1: ...OPERATOR S INSTRUCTION MANUAL ST 3030 3 AC DC DIGITAL CLAMP METER Copyright 2008 Elenco Electronics Inc...

Page 2: ...Replacement 16 11 Maintenance 16 WARNING PLEASE READ THIS INSTRUCTION MANUAL CAREFULLY Misuse and or abuse of this instruction manual cannot be prevented by any printed word and may cause injury and o...

Page 3: ...test lead before disconnecting the common test lead Check the main function dial and make sure it is at the correct position before each measurement Do not perform resistance capacitance temperature d...

Page 4: ...or destruction of part or all of the instrument This marking advises the user that the terminal s so marked must not be connected to a circuit point at which the voltage with respect to earth ground...

Page 5: ...ns the meter will switch to standby mode Press any button or rotate the selector switch to exit standby mode When reseting the meter press and hold the SELECT button to disable auto power off Safety S...

Page 6: ...erload protected 5 Features 3 digit 4 000 count display AC DC clamp on meter Auto manual range Basic accuracy 0 5 Diode check continuity buzzer Relative measurement Data hold Back light Auto power off...

Page 7: ...e selection of Frequency Measurement Hz mode or the duty cycle measurement duty mode 7 V Hz Jack The red test lead is inserted into this jack for all measurements except current amps 8 COM Jack The bl...

Page 8: ...nt is in the reverse direction of the polarity arrow Note Polarity arrow indicates current flow from positive to negative Low Battery Annunciator This annunciator is displayed when the battery needs t...

Page 9: ...displayed annunciator indicates the range of capacitance that is being measured Frequency Hertz Annunciators These annunciators are displayed whenever Frequency is being measured The displayed annunci...

Page 10: ...otection 600VDC or AC rms Impedance 10M More than 100M on 400mV range DC Current Overload Protection 1 000A DC or AC rms AC Current Average Sensing calibrated to rms of sine wave Frequency 40 100Hz Ov...

Page 11: ...0 2 0 1 4k 1 40k 10 400k 100 4M 1k 40M 2 0 3 10k Range Accuracy Resolution 40nF 3 0 10 10pF 400nF 2 5 5 100pF 4 F 1nF 40 F 5 0 10 10nF 100 F 100nF Range Description Test Condition Display read approx...

Page 12: ...o the test circuit where the value of voltage is needed 5 Read the result on the LCD panel 6 With the meter on the AC range press the Hz DUTY button to measure the frequency or duty cycle DC Current M...

Page 13: ...hen taking the resistance value from a circuit system make sure the power is disconnected and all capacitors are discharged Capacitance Measurement 1 Connect the black test lead to the COM socket and...

Page 14: ...aking this measurement Frequency and Duty Cycle Measurement 1 Connect the black test lead to COM socket and the red test lead to the V Hz socket 2 Set the selector switch to desired Hz position 3 Pres...

Page 15: ...ge This function is non effective on the Hz DUTY measurement Auto Manual Range The auto range mode is a convenient function but it might be faster to manually set the range when you measure values tha...

Page 16: ...ect both test leads and never use the meter while the battery cover is removed 2 To avoid contamination or static damage do not touch the circuit board without proper static protection 3 If the meter...

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