AEMC INSTRUMENTS OX 5042 and OX 5042B Handscope Instructions

: September 12, 2024
: AEMC INSTRUMENTS

Table of Contents

OX 5042 and OX 5042B Handscope
Product Information
Specifications:
- Product Usage Instructions
First-Time Setup:
AC Voltage Measurement:
AC Current Measurement:
AC Voltage and Current Harmonics:

OX 5042 and OX 5042B Handscope

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Product Information

Specifications:

Model: OX 5042 & OX 5042B Handscope
Measurement Types: AC Voltage, AC Current, Harmonics
Display: LCD
Input Channels: Channel A, Channel B

Product Usage Instructions

First-Time Setup:

Turn the instrument ON.
Press Memory Mode.
Use the left/right buttons to highlight the .cfg icon.

AC Voltage Measurement:

Attach the BNC adapter to the Channel A input.
Attach the black and red leads to the adapter.
Select probes and attach them to the leads.

AC Current Measurement:

Attach the current probe to the Channel B input.
Clip the probe around the conductor to be measured.
Turn the instrument ON.

AC Voltage and Current Harmonics:

Press Harmonics Mode.
Connect voltage leads and attach the current probe.
Press Auto Set.

Frequently Asked Questions (FAQ)

Q: What should I do if I encounter an insufficient amplitude

error message during Harmonics measurement?

A: If either channel is not connected, an
insufficient amplitude error message will appear. Pressing Auto Set
may not eliminate the error. Quickly press twice the channel button
for the channel causing the error. This action turns off that
channel, removes the error message, and displays the THD of the
active channel. The inactive channel will be grayed out. To
reactivate a turned-off channel, press its channel button one more
time.

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Chauvin Arnoux®, Inc.

15 Faraday Drive · Dover, NH 03820 · 800-343-1391 · 603-749-6434 · www.aemc.com
Model OX 5042 & OX 5042B Handscope Instructions for General Electrical Measurements

First-Time Setup

1. Turn the instrument ON.

2. Press Memory Mode .

3. Use the left/right buttons to highlight the .cfg icon

.

4. Use the up/down buttons to select the Load File icon

and press Enter .

5. Press the left arrow button twice to select files and the up/down buttons to highlight default.cfg.
6. Press Enter, then Right Arrow, and then Enter again to load the default configuration.

7. Press Meter Mode then then press Channel B .

8. Press the right navigation button until the Multiplier field is highlighted. By default this is set to x1.

9. Press the down navigation button until the

setting is highlighted.

10. Press Enter to save the setting.

11. Press to highlight the Units field. Press to highlight the A setting.

12. Press to save the setting. The main menu now appears as follows:

13. Press Memory Mode . 14. Use the left/right buttons to highlight the .cfg icon 15. Use the up/down buttons to highlight the Save Mode 16. Use the up button to highlight the Save File icon

. and press Enter . and press Enter .

This completes the First Time Setup.
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15 Faraday Drive · Dover, NH 03820 · 800-343-1391 · 603-749-6434 · www.aemc.com
AC Voltage Measurement

Chauvin Arnoux®, Inc.

1. Attach the BNC adapter (shown on right) to the Channel A input.

2. Attach the 10 ft black and red leads to the adapter.

3. Select the alligator or pencil tip probes and attach them to the leads as needed.

4. Attach the test leads to the measurement point. Turn the instrument ON.

5. Press Meter Mode

then press Channel A . The bottom display should

appear as follows:

NOTE: If this menu screen is not displayed, press the Channel A button again. 6. Verify that AUTO is ON in the menu at the bottom of the display. If AUTO is not
ON, see Loading a Saved Configuration at the end of this document.
7. The voltage measurement appears on the screen (see the example below):

8. Read the voltage and record:
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15 Faraday Drive · Dover, NH 03820 · 800-343-1391 · 603-749-6434 · www.aemc.com

Chauvin Arnoux®, Inc.

AC Current Measurement

1. Select the current probe based on the current to be measured: · MN251T (if in your kit) for measuring from (1 to 200) A · MN379T (if in your kit) for measuring from (0.05 to 120) A · MiniFlex® sensor for measuring (10 to 3000) A.

2. Attach the current probe to the Channel B input.

3. Clip the current probe around the conductor to be measured.

4. Turn the instrument ON.

7. Press Meter Mode

then press Channel B .

8. The bottom display should appear as follows:

NOTE: If this menu screen is not displayed, press the B Channel button again.
9. Verify that AUTO is ON and X1000 is in the menu at the bottom of the display. If AUTO is not ON, see Loading a saved configuration at the end of this document.
10. The current measurement appears on the Channel B display (see the example below):

11. Read the current and record:
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15 Faraday Drive · Dover, NH 03820 · 800-343-1391 · 603-749-6434 · www.aemc.com

Chauvin Arnoux®, Inc.

AC Voltage and Current Harmonics

1. Press Harmonics Mode . Connect the voltage leads and attached the current probe. Press Auto Set .
2. The Voltage and Current THD (Total Harmonics Distortion) percentages appear on the top of the display (see the example below):

Typical Display

Error Message (see note below)

Record the Voltage THD percentage:

%

Record the Current THD percentage:

%

NOTE: If either channel is not connected, an insufficient amplitude error message, as shown above, appears. If pressing Auto Set does not eliminate the error, quickly press twice the channel button for the channel causing the error. This turns OFF that channel, removes the error message, and displays the THD of the active channel. The channel that is OFF is grayed out. To re- activate a channel that is turned OFF, press its channel button one more time.

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15 Faraday Drive · Dover, NH 03820 · 800-343-1391 · 603-749-6434 · www.aemc.com

Chauvin Arnoux®, Inc.

Millivolt Drop Current Harmonics

1. Press Meter Mode

and then press Channel A .

2. Verify the following menu appears.

NOTE: If this menu screen is not displayed, press the Channel A button again. Verify that AUTO is ON in the menu at the bottom of the display. If AUTO is not ON, see Loading a Saved Configuration at the end of this document.
3. Move the test leads to each measurement point, and record each millivolt drop:

If applicable, record the completed measurements in your report software.

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15 Faraday Drive · Dover, NH 03820 · 800-343-1391 · 603-749-6434 · www.aemc.com

Chauvin Arnoux®, Inc.

Three most IMPORTANT things to remember:

Make sure you are in AUTO for Meter mode. 2) Turn Channels OFF when they are not being used. 3) Scale factor must be set correctly for each mode.

Loading a Saved Configuration

1. Press Memory Mode .

2. Use the left/right buttons to highlight the .cfg icon

.

3. Use the up/down buttons to select the Load File icon

and press Enter .

4. Press the left arrow button twice to select files and the up/down buttons to highlight setup_00.cfg.
5. Press Enter, then right arrow, and then Enter again to load the saved configuration.

Saving a Configuration

1. Press Memory Mode .

2. Use the left/right buttons to highlight the .cfg icon

.

3. Use the up/down buttons to highlight the Save Mode

and press Enter .

4. Use the up button to highlight the Save File icon

and press Enter .

AEMC® Instruments Technical Support 800-343-1391 (Ext. 351) · techsupport@aemc.com

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