AEMC 5231 Digital Multimeter User Manual

: June 13, 2024
: AEMC

Table of Contents

AEMC 5231 Digital Multimeter
Product Information
Product Usage Instructions
- Chapter 2: Rotary Functions
- Chapter 3: Operation
Statement of Compliance
CHAPTER 1
- INTRODUCTION
- International Electrical Symbols
CHAPTER 2 PRODUCT FEATURES
CHAPTER 3 OPERATION
- Resistance Measurement
CHAPTER 4 MAINTENANCE
CHAPTER 5 SPECIFICATIONS
Repair and Calibration
Limited Warranty
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

AEMC 5231 Digital Multimeter

AEMC-5231-Digital-Multimeter

Product Information

This is a digital multimeter with non-contact detection. The model number is 5231. The user manual can be found at http://manual-hub.com/.

The instrument is compliant with relevant standards and specifications at the time of shipping. A NIST traceable certificate can be requested at the time of purchase or obtained by returning the instrument to the repair and calibration facility for a nominal charge. The recommended calibration interval for this instrument is 12 months and begins on the date of receipt by the customer. For recalibration, please use the calibration services provided by the manufacturer. More information can be found at www.aemc.com.

The serial number of the instrument is: ____
The catalog number is: 2125.64
The model number is: 5231
Please fill in the appropriate dates as indicated:

Date Received: _____
Date Calibration Due: ____

Product Usage Instructions

Chapter 1: Introduction

Warning: Failure to observe the safety instructions may cause an electric shock, fire, explosion, or destruction of the instrument and installations.

International Electrical Symbols:

Important instructions to read and understand completely.
Important information to acknowledge.
Ground/Earth symbol
In conformity with WEEE 2002/96/EC

Definition of Measurement Categories:
CAT IV: For measurements performed at the primary electrical supply (2s). Note: Continuity and Diode modes are not Auto-ranging.

Chapter 2: Rotary Functions

Range OFF: Function powers down the multimeter.

Low impedance AC voltage measurement

AC or DC voltage measurement (V)
AC or DC voltage measurement (mV)
Resistance measurement
Continuity test
Diode test
Current measurement with AC or DC clamp, ratio 1mV/A
NCV (Non-contact Voltage) + Partial OFF mode of the multimeter (NCV function active)

Chapter 3: Operation

Turning the Multimeter ON:
Turn the switch to the appropriate function. All segments of the display will light for a few seconds. The screen corresponding to the chosen function will then appear. The multimeter is now ready for measurements.

Statement of Compliance

Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments certifies that this instrument has been calibrated using standards and instruments traceable to international standards.
We guarantee that at the time of shipping your instrument has met its published specifications.
An NIST traceable certificate may be requested at the time of purchase, or obtained by returning the instrument to our repair and calibration facility, for a nominal charge.
The recommended calibration interval for this instrument is 12 months and begins on the date of receipt by the customer. For recalibration, please use our calibration services. Refer to our repair and calibration section at www.aemc.com.

Serial #: _ ____
Catalog #: 2125.64
Model #: 5231
Please fill in the appropriate date as indicated:
Date Received: __
Date Calibration Due: ____

Chauvin Arnoux®, Inc.
d.b.a AEMC® Instruments
www.aemc.com

CHAPTER 1

INTRODUCTION

Warning: This device complies with safety standard IEC-61010-1 (Ed 2–2001) for voltages up to 1000V CAT III or 600V CAT IV, at an altitude below 2000m, indoors, with a pollution level of not more than 2.
Failure to observe the safety instructions may cause an electric shock, fire, explosion, or destruction of the instrument and of the installations.

Do not use the instrument in an explosive atmosphere or in the presence of flammable gases or fumes.
Do not use the instrument on networks of which the voltage or category exceeds those mentioned.
Do not exceed the rated maximum voltages and currents between terminals or with respect to earth/ground.
Do not use the instrument if it appears to be damaged, incomplete, or not properly closed.
Before each use, check the condition of the insulation on the leads, housing, and accessories. Any element of which the insulation is deteriorated (even partially) must be set aside for repair or scrapped.
Use leads and accessories rated for voltages and categories at least equal to those of the instrument.
Observe the environmental conditions of use.
Do not modify the instrument and do not replace components with “equivalents”. Repairs and adjustments must be done by approved qualified personnel.
Replace the battery as soon as the symbol appears
on the display unit. Disconnect all leads before opening the battery compartment cover.
Use personal protective equipment when conditions require.
Keep your hands away from unused terminals of the instrument.
When handling probes or contact tips, keep your fingers behind the guards.

International Electrical Symbols

AEMC-5231-Digital-Multimeter-fig-2

Definition of Measurement Categories

CAT IV: For measurements performed at the primary electrical supply (<1000V) such as on primary overcurrent protection devices, ripple control units, or meters.
CAT III: For measurements performed in the building installation at the distribution level such as on hardwired equipment in fixed installation and circuit breakers.
CAT II: For measurements performed on circuits directly connected to the electrical distribution system. Examples are measurements on household appliances or portable tools.

Receiving Your Shipment
Upon receiving your shipment, make sure that the contents are consistent with the packing list. Notify your distributor of any missing items. If the equipment appears to be damaged, file a claim immediately with the carrier and notify your distributor at once, giving a detailed description of any damage. Save the damaged packing container to substantiate your claim.

Ordering Information

Multimeter Model 5231 ………………………………………………Cat. #2125.64
Includes set of two 5 ft color-coded leads (red/black) with needle tip {1000V CAT IV 15A), soft carrying case and a user manual.

Accessories
Multifix mounting system ……………………………………………..Cat. #5000.44

Replacement Parts

Soft Carrying Case …………………………………………………….Cat. #2121.54
Lead-Set of 2, 1.5M, color-coded with test probes
(1000V CAT IV 15A) ………………………………………………….Cat. #2125.97

Order Accessories and Replacement Parts Directly Online Check our Storefront at www.aemc.com for availability

CHAPTER 2 PRODUCT FEATURES

Description
The Model 5231 is a TRMS digital multimeter, specially designed to com-bine the various functions and measurements of the following electrical quantities:

Non-contact detection of presence of network voltage (NCV function)
AC voltmeter with low input impedance (voltage measurements for electricity and electrical engineering)
AC/DC voltmeter with high input impedance (voltage measurements for electronics)
Ohmmeter
Continuity test with buzzer
Diode test
Ammeter (measurement using current clamp-on probe)

Control Features

NCV detection sensor (see § 3.5)
Analog and digital display (see § 2.3)
Function buttons (see § 2.4)
Rotary switch (see § 2.5)
Positive (Red) input and COM (Black) input

Display Features

Icon	Function
AC	Alternating Current
DC	Direct Current

AUTO

Button Functions

Button	Function

| • Measurement type selection

NOTE: The DC mode is activated by default

• Activates/Deactivates the Auto-OFF function at start-up (see § 3.3)

| • Allows manual selection of a measurement range (short press)

• Returns to Auto-Range mode (long press > 2s)

NOTE: Continuity and Diode modes are not Auto-ranging

| • Freezes/Unfreezes the display of the measured value (short press)

• Activates/Deactivates the display backlight (long press > 2s)

Rotary Functions

CHAPTER 3 OPERATION

Turning the Multimeter ON
Turn the switch to the appropriate function. All segments of the display will light for a few seconds. The screen corresponding to the chosen function will then appear. The multimeter is now ready for measurements.

Turning the Multimeter OFF
To turn the meter off manually, turn the switch to OFF. If left unused for 15 minutes, the meter will turn off automatically. At 14 minutes, five beeps warn that the meter is about to be turned off. To turn back on, press any button on the unit.

NOTE: The position does not completely turn the multimeter off. It remains active for non-contact detection of the presence of network voltage (NCV).

Activating/Deactivating Auto-OFF
By default, Auto-OFF is activated and the symbol is displayed.
A long press on the button during start-up, while turning the switch to any range, deactivates the Auto-OFF function. The symbol is not displayed.

Auto and Manual Range Selection
By default, the meter is in auto-range. This is indicated by the AUTO symbol on the display. While on, the instrument will automatically adjust to the correct measurement range when taking the measurement. To change the range selection to Manual, press the ****button.

Non-Contact Voltage (NCV)

Turn the rotary switch to the NCV position.
Move the Model 5231 (NCV detection sensor) close to the potentially live conductor(s) (presence of phase).

If a network voltage of 90V or greater is present, the back-lighting lights up red, otherwise, it remains off.

Voltage Measurement
The Model 5231 measures AC voltage at low input impedance (VLOWZ), DC and AC voltages.

Set the switch to , ,Or . When set to the device is in AC mode only.
For or , select AC or DC by pressing ****. By default the meter is in DC mode.
Insert the red lead to the red “+” input jack and the black lead to the black “COM” input jack.
Connect the test probe tips to the sample under test.

Resistance Measurement

WARNING: When making a resistance measurement, make sure that the power is off (de-energized circuit). It is also important that all capacitors in the measured circuit be fully discharged.

Turn the rotary switch to the position.
Insert the red lead to the red “+” input jack and the black lead to the black “COM” input jack.
Connect the test probe tips to the sample under test.

Continuity Test

WARNING: When making a resistance measurement, make sure that the power is off (de-energized circuit).

Turn the rotary switch to the position.
Press the button. The symbol is displayed.
Insert the red lead to the red “+” input jack and the black lead to the black “COM” input jack.
Connect the test probe tips to the sample under test.
The buzzer sounds when the circuit to be checked is DC or has a resistance of less than 100Ω ± 3Ω.

Diode Test

WARNING: When making a diode measurement, make sure that the power is off (de-energized circuit).

Turn the rotary switch to the position.
Press the ****button twice. The symbol is displayed.
Insert the red lead to the red “+” input jack and the black lead to the black “COM” input jack.
Connect the test probe tips to the sample under test.

Current Measurement Using a Clamp-on Probe

Turn the rotary switch to the position.
Select AC or DC by pressing the ****button. By default the meter is in AC mode. Depending on the selection, the screen displays AC or DC.
Insert the current probe’s red lead to the red “+” input jack and the black lead to the black “COM” input jack.
Clamp the current probe around the current carrying conductor to be tested.

CHAPTER 4 MAINTENANCE

Warning

Remove the test leads from any input before opening the case. Do not operate the instrument without a battery case cover.
To avoid electrical shock, do not attempt to perform any servicing unless you are qualified to do so.
If the meter is not going to be used for a long period of time, take out the batteries. Do not store the meter in high temperatures or high humidity.
To avoid electrical shock and/or damage to the instrument, do not get water or other foreign agents into the probe.

Battery Replacement

The batteries will need to be replaced when the symbol appears on the display.
The meter must be in the OFF position and disconnected from any circuit or input.
Using a screwdriver, unscrew the four screws of the battery compartment cover on the back of the housing.
Replace the old battery with one new 9V battery, observing the polarity.
Replace the battery compartment cover and tighten the screws.

Cleaning

Disconnect all leads from the instrument and set the switch to OFF.
To clean the instrument, wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents. Dry thoroughly before use.
Do not get water inside the case. This may lead to electrical shock or damage to the instrument.

CHAPTER 5 SPECIFICATIONS

Reference Conditions: Accuracy given @ 23°C ± 2°C; Relative Humidity 45 to 75%; Supply Voltage 8.5V ± 0.5V

ELECTRICAL

DC (mV DC )| 60mV| 600mV
Resolution| 0.01mV| 0.1mV
Accuracy (±)| 1% + 12cts| 0.6% + 2cts
Input Impedance| 10M
DC (V DC )| 600mV| 6V| 60V| 600V| 1000V
Resolution| 0.1mV| 0.001V| 0.01V| 0.1V| 1V
Accuracy (±)| 0.6% + 2cts| 0.2% + 2cts| 0.2% + 2cts
Input Impedance| 10M
AC (mV AC TRMS )| 60mV| 600mV
Resolution| 0.01mV| 0.1mV
Accuracy (±) 40 to 60Hz| 2% + 12cts| 2% + 3cts
Accuracy (±) 60Hz to 1kHz| 2.5% + 12cts| 2.5% + 3cts
Input Impedance| 10M
AC (V AC TRMS )| 6V| 60V| 600V| 1000V
Resolution| 0.001V| 0.01V| 0.1V| 1V
Accuracy (±) 40 to 60Hz| 2% + 3cts| 2.5% + 3cts
Accuracy (±) 60Hz to 1kHz| 2.5% + 3cts| 2.5% + 3cts
Input Impedance| 10M
AC (V AC LowZ TRMS )| 6V| 60V| 600V| 1000V
Resolution| 0.001V| 0.01V| 0.1V| 1V
Accuracy (±) 40 to 60Hz| 2% + 10cts
Input Impedance| 270k

According to safety rules, 1000V range is limited to 600V.
NOTE: A low input impedance serves to eliminate the effects of interference voltages due to the supply network, and makes it possible to measure an AC voltage with a minimum of error.

ELECTRICAL

Repair and Calibration

To ensure that your instrument meets factory specifications, we recommend that it be scheduled back to our factory Service Center at one-year intervals for recalibration, or as required by other standards or internal procedures.

For instrument repair and calibration:
You must contact our Service Center for a Customer Service Authorization Number (CSA#). This will ensure that when your instrument arrives, it will be tracked and processed promptly. Please write the CSA# on the outside of the shipping container. If the instrument is returned for calibration, we need to know if you want a standard calibration, or a calibration traceable to N.I.S.T. (Includes calibration certificate plus recorded calibration data).

Ship To: AEMC® Instruments

15 Faraday Drive
Dover, NH 03820 USA
Tel: 800-945-2362 (Ext. 360)
603-749-6434 (Ext. 360)
Fax: 603-742-2346 or 603-749-6309
repair@aemc.com

(Or contact your authorized distributor)
Costs for repair, standard calibration, and calibration traceable to N.I.S.T. are available.
NOTE: You must obtain a CSA# before returning any instrument.
Technical and Sales Assistance
If you are experiencing any technical problems, or require any assistance with the proper operation or application of your instrument, please call, fax or e-mail our technical support team:
Contact: AEMC® Instruments

Tel: 800-945-2362 (Ext. 351)
603-749-6434 (Ext. 351)
Fax: 603-742-2346
techsupport@aemc.com

Limited Warranty

The Model 5231 is warranted to the owner for a period of two years from the date of original purchase against defects in manufacture. This limited warranty is given by AEMC®, not by the distributor from whom it was purchased. This warranty is void if the unit has been tampered with, abused or if the defect is related to service not performed by AEMC®.
For full and detailed warranty coverage, go to www.aemc.com. The warranty information is located in our customer service section.
What AEMC® will do:
If a malfunction occurs within the warranty period, you may return the instrument to us for repair, provided you submit a proof of purchase. AEMC® will, at its option, repair or replace the faulty material.

Warranty Repairs
What you must do to return an Instrument for Warranty Repair:
First, request a Customer Service Authorization Number (CSA#) by phone or by fax from our Service Department (see address below), then return the instrument along with the signed CSA Form. Please write the CSA# on the outside of the shipping container. Return the instrument, postage or shipment pre-paid to:

AEMC® Instruments
Service Department
15 Faraday Drive • Dover, NH 03820 USA
Tel: 800-945-2362 (Ext. 360)
603-749-6434 (Ext. 360)
Fax: 603-742-2346 or 603-749-6309

Caution: To protect yourself against in-transit loss, we recommend you insure your returned material.
NOTE: You must obtain a CSA# before returning any instrument.

Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments
15 Faraday Drive • Dover, NH 03820 USA • Phone: 603-749-6434 • Fax: 603-742-2346 www.aemc.com