Amprobe 38XR-A User manual

User Manual
ENG FRE SPA
38XR-A
Professional
Digital
Multimeter
38XR-A

38XR-A
Professional Digital
Multimeter
User Manual
5/2018, 6010932 C
©2018 Amprobe
All rights reserved. Printed in Taiwan
English

Limited Warranty and Limitation of Liability
Your Amprobe product will be free from defects in material and
workmanship for one year from the date of purchase unless
local laws require otherwise. This warranty does not cover fuses,
disposable batteries or damage from accident, neglect, misuse,
alteration, contamination, or abnormal conditions of operation or
handling. Resellers are not authorized to extend any other warranty
on the behalf of Amprobe. To obtain service during the warranty
period, return the product with proof of purchase to an authorized
Amprobe Service Center or to an Amprobe dealer or distributor.
See Repair Section for details. THIS WARRANTY IS YOUR ONLY
REMEDY. ALL OTHER WARRANTIES - WHETHER EXPRESS, IMPLIED
OR STATUTORY - INCLUDING IMPLIED WARRANTIES OF FITNESS
FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, ARE HEREBY
DISCLAIMED. MANUFACTURER SHALL NOT BE LIABLE FOR ANY
SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR
LOSSES, ARISING FROM ANY CAUSE OR THEORY. Since some states
or countries do not allow the exclusion or limitation of an implied
warranty or of incidental or consequential damages, this limitation
of liability may not apply to you.
Repair
All Amprobe returned for warranty or non-warranty repair or
for calibration should be accompanied by the following: your
name, company’s name, address, telephone number, and proof of
purchase. Additionally, please include a brief description of the
problem or the service requested and include the test leads with
the meter. Non-warranty repair or replacement charges should be
remitted in the form of a check, a money order, credit card with
expiration date, or a purchase order made payable to Amprobe.
In-Warranty Repairs and Replacement – All Countries
Please read the warranty statement and check your battery before
requesting repair. During the warranty period, any defective
test tool can be returned to your Amprobe distributor for an
exchange for the same or like product. Please check the “Where
to Buy” section on amprobe.com for a list of distributors near you.
Additionally, in the United States and Canada, in-warranty repair
and replacement units can also be sent to an Amprobe Service
Center (see address below).

Non-warranty Repairs and Replacement – United States and Canada
Non-warranty repairs in the United States and Canada should be
sent to an Amprobe Service Center. Call Amprobe or inquire at
your point of purchase for current repair and replacement rates.
USA: Canada:
Amprobe Amprobe
Everett, WA 98203 Mississauga, ON L4Z 1X9
Tel: 877-AMPROBE (267-7623) Tel: [phone]
Non-Warranty Repairs and Replacement – Europe
European non-warranty units can be replaced by your Beha-Amprobe
distributor for a nominal charge. Please check the “Where to Buy”
section on beha-amprobe.com for a list of distributors near you.
Beha-Amprobe
Division and reg. trademark of Fluke Corp. (USA)
Germany*United Kingdom
In den Engematten 14 52 Hurricane Way
79286 Glottertal Norwich, Norfolk
Germany NR6 6JB United Kingdom
Phone: [phone] - 0 Phone: [phone]
beha-amprobe.de beha-amprobe.com
The Netherlands - Headquarters**
Science Park Eindhoven 5110
5692 EC Son
The Netherlands
Phone: [phone]
beha-amprobe.com
*(Correspondence only – no repair or replacement available from this address.
European customers please contact your distributor.)
**single contact address in EEA Fluke Europe BV

38XR-A Professional Digital Multimeter
1Display
2Feature Buttons
3Function/Range Switch
4Test Lead Connections
5Strap Clip
6Battery/Fuse Cover
38XR-A
MADE IN TAIWAN
PATENTS PENDING
www.amprobe.com
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38XR-A Professional Digital Multimeter
CONTENTS
SYMBOLS......................................................................2
SAFETY INFORMATION ................................................2
UNPACKING AND INSPECTION ....................................3
INTRODUCTION ............................................................4
MAKING MEASUREMENTS ..........................................4
ADDITIONAL FEATURES ...............................................16
PRODUCT MAINTENANCE............................................21
SPECIFICATIONS............................................................22
SAFETY..........................................................................23
ELECTRICAL SPECIFICATIONS.......................................24

2
SYMBOLS
Battery
Double insulated
Direct Current
Alternating Current
Fuse
Complies with EU Directives
Refer to the Manual
Dangerous Voltage
Earth Ground
Audible tone
C
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A
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S
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F
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Underwriters Laboratories, Inc.
CAT III
MEASUREMENT CAT III is applicable to test and
measuring circuits connected to the distribution
part of the building’s low-voltage mains installation.
CAT IV
MEASUREMENT CAT IV is applicable to test and
measuring circuits connected at the source of
the building’s low-voltage mains installation.
SAFETY INFORMATION
Warning
Do not alter the Product and use only as specified, or the
protection supplied by the Product can be compromised.
• The 38XR-A Digital Multimeter is for use with fixed
equipment installations, such as, distribution panels,
feeders and short branch circuits and lighting
systems in large buildings; and for the primary supply
level, such as, an electric meter or an overhead or
underground utility service.

3
• Do not exceed the maximum overload limits per
function (see specifications) nor the limits marked on the
instrument itself. Never apply more than 1000V dc/750 V
ac rms between the test lead and earth ground.
• Inspect the DMM, test leads and accessories before
every use. Do not use any damaged part.
• Never ground yourself when taking measurements. Do
not touch exposed circuit elements or test probe tips.
• Do not operate the instrument in an explosive
atmosphere.
• Exercise extreme caution when: measuring voltage
>20V // current >10mA // AC power line with
inductive loads // AC power line during electrical
storms // current, when the fuse blows in a circuit
with open circuit voltage >1000 V // servicing CRT
equipment.
• Always measure current in series with the load –
NEVER ACROSS a voltage source. Check fuse first.
Never replace a fuse with one of a different rating.
• Remove test leads before opening the Battery Cover
or case.
UNPACKING AND INSPECTION
Your shipping carton should include:
1 38XR-A Digital Multimeter
1 Test leads w/ alligator clips
1 Magne-Grip® Holster
1 Clip, magnet, and strap
1 Temperature Adapter
1 K-type thermocouple
1 Users Manual
1 9 V battery (installed)
1 mA fuse, 0.5A/1000 V

4
INTRODUCTION
The 38XR-A is a true rms autoranging handheld digital
multimeter for measuring or testing the following:
• DC and AC Voltage
• DC and AC Current
• Resistance
• Frequency
• Dutycycle
• Temperature
• Capacitance
• Diodes
• Continuity
• dBm
• 4 - 20 mA Loop Current
Additional features include: MIN MAX AVG, HOLD, REL,
PEAK±, Range Lock, RS-232 IR communication, and Backlight.
MAKING MEASUREMENTS
Verify Instrument Operation
Before attempting to make a measurement, verify that
the instrument is operational and the battery is good. If
the instrument is not operational, have it repaired before
attempting to make a measurement.
Range Selection
In addition to autoranging the 38XR-A allows you to
manually select and lock a range by pressing the RANGE
button. RANGE appears on the display to indicate that
manual ranging is active and the range is locked. When
appropriate, each subsequent press of the range button steps
the meter to the next higher range. When the highest range
is reached the next press returns the meter to the lowest
range. To return to autoranging press and hold the RANGE
button for 2 seconds. If RANGE still shows on the display,
autoranging is not appropriate for the selected function.
Use autorange for all initial measurements. Then, when
appropriate, use the RANGE button to select and lock a range.