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Fahrenheit Annunciator

- This annunciator is displayed

whenever the Temperature measurement mode is selected
for Fahrenheit display.

Centrigrade Annunciator

- This annunciator is displayed

whenever the Temperature measurement mode is selected
for Centrigrade display.

Resistance (Ohms) Annunciators

- These annunciators

are displayed whenever Resistance is being measured.  The
displayed annunciator indicates the range of resistance that
is being measured.

Voltage Annunciators

- These annunciators are displayed

whenever Voltage is being measured.  The displayed annunciator
indicates the range of voltage that is being measured.

Current (Amperes) Annunciator

- This annunciator is

displayed whenever the Current (Amps) measurement mode
is active.

Capacitance (Farads) Annunciators

- These annunciators

are displayed whenever Capacitance is being measured.
The 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 annunciator indicates the range of frequency that
is being measured.

Auto Power Annunciator

- This annunciator is displayed when

the Auto Power Off mode is active.  APO comes on
automatically when the meter is turned on.  To defeat the APO,
hold the SELECT button down when turning on the power.

MAX and MIN Annunciators

- These annunciators are

displayed when either MAX or MIN display has been selected
(by pressing the MAX/MIN button).  To exit this mode, press
and hold the MAX/MIN button until the meter returns to the
normal operating mode (takes about two seconds.

Overload Indication 

- This is the display when the input

exceeds the display capability of the Meter.  If measuring
voltage or current, remove the input immediately.  Depending
on the meter setting, the decimal points may or may not be
present.

-9-

O

F

O

C

Ω

k

Ω

M

Ω

mV, V

A

nF

μ

F

mF

Hz

kHz

MHz

APO

MAX

MIN

Содержание ST-3030

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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