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Micronta 22-195A - User Manual

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Cat.
No.
22-
195A
OWNER'S
MANUAL
Please
read
before
using
this
equipment
LCD
BENCHTOP
DIGITAL
MULTIMETER
MICRONTA®
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Summary

FEATURES AND CAPABILITIES

Product Overview and Design

Describes the multimeter's design, technology, and general capabilities.

Key Multimeter Functions

Lists core functionalities like auto-ranging, data hold, continuity, diode check, hFE, and memory.

METER CONTROLS AND FUNCTIONS

Display and Indicators

Explains the digital display, bar graph, and various indicator lights on the meter.

Input Jacks and Switches

Details the purpose of input jacks and control switches for operation.

DISPLAY ELEMENTS AND INPUT JACKS

Digital Display Elements

Describes measuring value indicators, bar graph, and specific indicators (AC, BATT, etc.).

Input Jack Functions

Explains the purpose of the 10A, +, and - input jacks for connections.

CONTROL SWITCHES AND TERMINALS

Transistor Measurement Terminals

Details the hFE terminal and PNP-NPN switch for transistor testing.

Meter Control Switches

Covers range control, buzzer, data hold, memory, and power switches.

UNIT FEATURES AND ACCESSORIES

Unit Features

Describes the detented handle and battery/fuse compartment for usability.

Included Accessories

Lists test clip harness and banana test leads supplied with the unit.

PANEL MARKINGS EXPLANATION

Voltage;Current Rating Markings

Explains markings for current and voltage limits on the meter.

Safety Caution Markings

Covers warnings for high voltage and common terminal use for user safety.

OPERATION PREPARATION

Installing Batteries

Step-by-step guide for battery installation and understanding the low battery indicator.

TEST LEAD AND VIEWING ADJUSTMENT

Test Lead Specifications

Notes on test lead rating and meter voltage limits for safe operation.

Viewing Angle Adjustment

Describes how to adjust the handle for optimal viewing angles.

PRE-OPERATION CHECKLIST

Initial Power-Up and Self-Test

Describes powering on the meter and its self-test sequence.

Practicing Range Control

Guides the user on practicing range selection for familiarization.

MEASUREMENT RANGES AND DISPLAY NOTES

Function and Range Table

Lists available functions, ranges, and corresponding display formats.

Range Notes and Indicators

Explains range control behavior and phantom readings.

MAKING MEASUREMENTS INTRODUCTION

DC;AC Voltage Measurement Procedure

Step-by-step guide for performing voltage measurements on the meter.

VOLTAGE MEASUREMENT SPECIFICS

Reading Decimal Points

Explains how decimal points indicate the measurement range on the display.

3-Phase AC Voltage Measurement

Details for measuring 3-phase AC voltages and associated warnings.

AC VOLTAGE ON DC BIAS MEASUREMENT

Measuring Superimposed AC

Describes how to measure AC voltage on a DC source bias.

High Voltage Safety Hints

Provides safety tips for probing high voltage circuits.

CURRENT MEASUREMENT CONNECTIONS

300 mA and 10 A Connections

Details how to connect for 300mA and 10A current measurements.

CURRENT MEASUREMENT PROCEDURE AND WARNINGS

Series Connection and Warnings

Explains series connection and critical warnings for current measurements.

RESISTANCE MEASUREMENT CONNECTIONS

Connecting for Resistance Test

Details the steps to connect probes for resistance measurements.

RESISTANCE MEASUREMENT SPECIFICS

Range Stabilization and Display

Explains stabilizing high readings and using unit display for range.

Resistance Range Notes

Provides table of voltage and current available for each resistance range.

RESISTANCE MEASUREMENT SAFETY

Over-voltage Protection

Explains the protection circuit for resistance ranges against over-voltage.

Internal Lead Resistance

Notes on accounting for internal resistance of leads when measuring small resistances.

CONTINUITY TEST FUNCTION

Performing Continuity Test

Explains how to use the continuity function and its audible feedback.

DIODE CHECK PROCEDURE

Diode Test Procedure

Details the steps and interpretation for checking diodes with the meter.

HFE TRANSISTOR TEST

Transistor Gain Measurement

Explains how to connect and measure transistor hFE (current gain).

HFE MEASUREMENT AND BAR GRAPH DISPLAY

Reading hFE and Safety

Explains reading the hFE value and a critical safety warning.

Bar Graph Functionality

Describes how the bar graph displays measured data and polarity.

MEMORY FUNCTION USAGE

Activating and Using Memory

Explains how to start, store, and recall maximum/minimum values.

MEMORY FUNCTION DATA DISPLAY

Clearing Memory and Display

How to stop and clear the memory function, and bar graph display.

Recalling Max;Min Values

Explains how to recall the maximum and minimum values stored in memory.

MEMORY FUNCTION TECHNICALITIES

Max;Min Value Interpretation

Explains how values are determined, including overrange and auto-range.

Technical Notes on Memory

Provides technical details about the memory function's timing and converters.

MEMORY FUNCTION EXAMPLES AND OPERATION

Memory Storage and Polarity

Explains how memory stores values and handles polarity changes.

Memory Function Examples

Provides examples of maximum and minimum values retained in memory.

MEMORY FUNCTION INPUT SCENARIOS

Non-linear Input Examples

Shows examples of memory function with non-linear inputs.

Data Hold for Memory Retention

Suggests using Data Hold for retaining data after probe disconnection.

DATA HOLD FUNCTIONALITY

Freezing Display and Data

Explains how to freeze the display and retain data, even after removing probes.

Data Hold Limitations

Notes on conditions that may cancel Data Hold or make switches inoperative.

BUZZER SWITCH OPERATION

Buzzer Alerts and Warnings

Explains buzzer sounds for renewed values and exceeding limits.

Buzzer Behavior Notes

Clarifies buzzer behavior in continuity mode and auto-ranging.

RANGE CONTROL MODES

Manual Range Selection

Explains switching to manual range and adjusting with UP/DOWN.

Returning to Autorange

Details how to switch back to autorange mode from manual.

FUSE REMOVAL PROCEDURE

Fuse Removal Procedure

Provides safety precautions and steps for removing the fuse.

FUSE INSTALLATION AND CLOSURE

Inserting New Fuse

Explains how to insert a new fuse correctly into the compartment.

Closing Compartment and Warning

Details closing the battery/fuse compartment and relevant warning.

METER MAINTENANCE AND SAFETY

Meter Care and Protection

Covers general maintenance, environmental limits, and damage prevention.

Operational Safety Rules

Lists essential safety recommendations for operating the multimeter.

SCHEMATIC DIAGRAM AND NOTES

Circuit Diagram

The detailed electronic schematic of the multimeter's internal circuitry.

Component and Switch Notes

Explanations of notes related to components and switch functions.

PRODUCT WARRANTY INFORMATION

Warranty Terms and Coverage

Details the 90-day warranty period and what it covers.

Warranty Exclusions and Rights

Lists limitations, exclusions, and consumer legal rights.

Micronta 22-195A Specifications

General IconGeneral
Diode TestYes
Continuity BuzzerYes
Fuse ProtectionYes
DC Voltage Ranges0.1V, 10V, 50V, 250V, 1000V
AC Voltage Ranges10V, 50V, 250V, 1000V
DC Current Ranges2.5mA, 25mA, 250mA
Battery9V
dB Range-20 to +62 dB
Battery TypeAA and 9V

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