Beha Amprobe AD40B, AC40B User guide [ml]
AD40B, AC40B
Mini Clamp Meters
Users Manual
• Bedienungshandbuch
• Manual de uso
• Mode d’emploi
PN 2729049
July 2006
©2006 Amprobe
All rights reserved. Printed in Taiwan
Test Tools.
Limited Warranty and Limitation of Liability
Your Amprobe
material and workmanship for 1 year from the date of
product will be free from defects in
purchase. 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 Amprobe
behalf. To obtain service during the warranty period,
return the product with proof of purchase to an
authorized Amprobe
Amprobe
above for details. THIS WARRANTY IS YOUR ONLY
dealer or distributor. See Repair Section
Test Tools Service Center or to a
REMEDY. ALL OTHER WARRANTIES - WHETHER
EXPRESS, IMPLIED OR STAUTORY - 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.
’s
Mini Clamp Meters
Contents
Symbols.................................................................................................... 1
Warnings and Precautions ........................................................................1
Introduction .............................................................................................. 2
Instrument Familiarization (Fig. 1) ............................................................ 2
AC Current Measurement (Fig. 2) ............................................................. 3
AC & DC Voltage Measurement (AC40B) (Fig. 3)...................................... 3
Resistance & Continuity Measurement (AC40B) (Fig. 4)........................... 3
Display Hold.............................................................................................. 3
Specifications............................................................................................ 3
Troubleshooting & Maintenance ............................................................... 5
Repair ....................................................................................................... 6
Symbols
Β Battery W Refer to the manual
T Double
insulated
F Direct
Current
B Alternating
Current
Complies
with EU
P
directives
Warnings and Precautions
• This instrument is EN61010-1:2001 and EN61010-2-32 certified for
Installation Category III. It is recommended for use with local level
power distribution, appliances, portable equipment, etc, where only
smaller transient overvoltages may occur, and not for primary
supply lines, overhead lines and cable systems.
• This instrument must not be used on uninsulated conductors at a
voltage greater than 600V ac/dc.
• Use extreme caution when working around bare conductors and bus
bars.
• Do not exceed the instrument overload limits per function (see
specifications) nor the limits marked on the instrument.
• Exercise extreme caution when: measuring voltage >60 V DC or 30 V
AC RMS // current >10 mA // AC power lines with inductive loads //
AC power lines during electrical storms // servicing CRT equipment.
High voltages can be lethal and high voltage transients may occur at
any time.
• Never measure current while test leads are inserted in the input
jacks.
Dangerous Voltage
X
Earth Ground
J
Audible tone
R
Application around and
,
removal from hazardous,
live conductors permitted
1
• Always inspect your instrument, test leads and accessories for signs
of damage or abnormality before every use. If abnormal conditions
exist (broken or damaged test leads, cracked case, display not
reading, etc.), do not use.
• When making voltage measurements, make sure these ranges
function correctly. Take a reading of a known voltage first.
• Never ground yourself when taking measurements. Do not touch
exposed metal pipes, outlets, fixtures, etc., which might be at
ground potential. Keep your body isolated from ground and never
touch exposed wiring, connections, test probe tips, or any live
circuit conductors.
• Do not operate the instrument in an explosive atmosphere
(flammable gases, fumes, vapor, dust).
• Do not use this or any piece of test equipment without proper
training. Read the operating instructions before use and follow all
safety instructions.
• Use the meter only as specified in this manual; otherwise the
meters safety circuitry may not protect you.
• Use extreme caution when working around bare conductors. Contact
with the conductor could result in electric shock.
• The ridge at the top of the clamp body is intended to keep hands and
fingers away from hazardous live conductors.
Introduction
The AD40B is an average sensing and RMS (sine wave) indicating AC
current clamp. The AC40B is an average sensing and RMS (sine wave)
indicating AC current clamp meter that also measures AC and DC voltage,
resistance and continuity.
Unpacking and Inspection
Your shipping carton should include the digital clamp meter , a carrying
case, two 1.5 V AAA (UM-2) batteries (installed), and this manual plus one
test lead set (one black, one red) for the AC40B meter. If any of the items
are damaged or missing, return the complete package to the place of
purchase for an exchange.
Instrument Familiarization (Fig. 1)
1. Transformer Jaws: Designed to pick up the AC current flowing through
the conductor.
2. Jaw Opening Lever: Press lever to open transformer jaws. When
pressure on lever is released, the jaws will close again.
3. Selector Switch: Turns instrument on and off and selects the
measuring function.
4. AC/DC selector switch (AC40B): With the selector switch set to voltage
measurement, this button selects between AC and DC voltage.
5. Data Hold Switch: Holds reading for all functions and ranges. Press
again to release HOLD before taking a new measurement.
6. Digital Display: 3-3/4 digit LCD (max reading 3999) with decimal point,
low battery N, Auto-range, Data Hold l, and unit indicators, plus,
for the AC meter: ACB, DCF, Polarity ) and continuity R.
7. Input Terminals (AC meters): Connect the black test lead to the “COM”
input and red lead to the “+” input when measuring voltage, resistance
and continuity (AC40B).
2
AC Current Measurement (Fig. 2)
1. Set the slide switch to ACB position.
2. Open spring-loaded clamp by pressing lever on left side of meter.
3. Position clamp around wire or conductor and release clamp lever.
Make sure that the conductor is centered in the clamp and that the
clamp is entirely closed. The clamp must be positioned around only
one conductor. If it is placed around two or more current carrying
conductors, the reading is FALSE.
4. Read the measured value on the display. If the measured value
exceeds the highest range for a period of time, overheating may occur.
Interrupt measurement.
Do not measure current on high-voltage conductors
(>600 V) in order to avoid risk of discharge and/or
incorrect reading.
AC & DC Voltage Measurement (AC40B) (Fig. 3)
1. Connect the black test lead to the COM input and the red test lead to
the “+” input.
2. Set the selector switch to V C position.
3. Press the AC DC button to select AC or DC voltage (B or F is
displayed).
4. Connect probe tips to circuit, in parallel to the load.
5. Read the measured value on the display.
Resistance & Continuity Measurement (AC40B) (Fig. 4)
1. Remove any voltage from resistance to be measured and discharge all
capacitors.
2. Connect the black test lead to the COM input and the red test lead to
the “+” input.
3. Set the selector switch to Ω R position.
4. Connect the probe tips across the circuit or resistance.
5. Read the measured value on the display.
The instrument emits a continuous tone and the R symbol is displayed
when the measured resistance is < 40 Ω.
Display Hold
Press the HOLD button to keep the measured value on the display for later
viewing. Press HOLD again to release the “Display Hold” function before
taking a new measurement. Display Hold can be applied to all measuring
functions.
Note
Specifications
General Specifications
Display: (AC40B & AD40B) 3-3/4 digit LCD (max. reading 3999).
Polarity Indication: Automatic, negative indicated, positive implied
Overrange Indication : “OL” indicated.
Measuring Principle: Dual slope integration.
Range Selection: Automatic.
Low Battery Indication: N when battery voltage falls below operating
voltage.
3
Auto Power Off (APO): Approx. 30 minutes after no function change.
Environmental Conditions
This instrument is designed for indoor use.
Altitude: < 2000 m
Operating Temperature: 0 °C to +40 °C, <80 % R.H., non-condensing.
Storage Temperature: -10 °C to +60 °C, <70 % R.H., non-condensing,
batteries removed.
Power Supply: Two 1.5 V AAA batteries (UM-2).
Battery Life: Alkaline 300 hours, approx.
Maximum Jaw Opening: 25.4 mm.
Dimensions/Weight, AD40B (WxHxD): 64x190x36mm/250g (incl. battery).
Dimensions/Weight, AC40B (WxHxD): 64x190x36mm/280g (incl. battery).
Accessories: Manual, carrying case, test leads (AC40B).
Replacement Parts: Test lead set - TL245
Safety: meets EN 61010-1:2001 Cat III - 600V Pollution Degree: Level II,
EN 61010-2-032
EMC: meets EN61326-1.
Agency Approvals: P
This product complies with requirements of the following European
Community Directives: 89/336/EEC (Electromagnetic Compatibility)
and 73/23/EEC (Low Voltage) as amended by 93/68/EEC (CE Marking).
However, electrical noise or intense electromagnetic fields in the
vicinity of the equipment may disturb the measurement circuit.
Measuring instruments will also respond to unwanted signals that may
be present within the measurement circuit. Users should exercise care
and take appropriate precautions to avoid misleading results when
making measurements in the presence of electronic interference.
Electrical Specifications
Accuracy is ±(%reading + nbr digits) at 23 °C ±5 °C, <80 % R.H.
DC Voltage (AC40B)
Range Accuracy Resolution
400 V ±(1.2 %rdg +5 dgt) 0.1 V
600 V ±(1.2 %rdg +5 dgt) 1 V
Input Impedance: 1 MΩ
Overload Protection: 600 V rms
AC Voltage (AC40B)
Range Accuracy (40-450 Hz) Resolution
400 V ±(1.5 %rdg +10 dgt) 0.1 V
600 V ±(1.5 %rdg +10 dgt) 1 V
Input Impedance: 1 MΩ
Measuring method: Dual slope integration. Average Sensing, rms
indication. Overload Protection: 600 V rms
AC Current (AC40B/AD40B)
Range Accuracy (50/400 Hz) Resolution
40 A ±(2.0 %rdg +10 dgt) 0.01 A
400 A ±(2.0 %rdg +10 dgt) 0.1 A
Overload Protection: 660 A Accuracies are specified for conductor
centered in the jaw. If the conductor is not centered, an additional error
of max 1.5 % can result.
4
Measuring method: Dual slope integration. Average Sensing, rms
indication.
Resistance (AC40B)
Range Accuracy Resolution
400 Ω ±(1.0 %rdg + 5 dgt) 0.1 Ω
Max open circuit voltage, AC40B: -1.2 V nominal
Overload Protection, AC40B: 600 Vrms
Audible Continuity (AC40B)
Like resistance measurement. Continuous tone and R display at R ≤40 Ω
for AC40B
Max open circuit voltage: -1.2 V
Overload Protection: 600 Vrms
Data Hold: Hold display reading for all functions and ranges. Always
remember to release Data Hold when taking a new measurement.
Troubleshooting & Maintenance
In case of malfunction during the operation of the meter, the following
steps should be performed in order to isolate the cause of the problem:
1. Check the batteries.
2. Review the operating instructions for possible mistakes in operating
procedure.
3. Check clamp against a known current source.
4. Check test leads for continuity (voltage and resistance).
Except for the replacement of the batteries, repair of the clamp should be
performed only by a Factory Authorized Service Center or by other
qualified instrument service personnel.
Front panel and case can be cleaned with a mild solution of detergent and
water. Apply sparingly with a soft cloth and let dry completely before
using. Do not use aromatic hydrocarbons or chlorinated solvents for
cleaning.
Battery Replacement
The meter is powered by two 1.5 V AAA batteries. Replace batteries as
soon as N symbol is displayed.
1. Turn meter off. Disconnect and remove the test leads.
2. Position the meter face down. Remove the two screws and lift off rear
case.
3. Replace the batteries.
4. Reassemble the case.
5
Repair
All test tools 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
Test Tools.
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® Test Tools distributor for an exchange for the
same or like product. Please check the “Where to Buy” section on
www.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 a Amprobe® Test Tools Service Center (see below for
address).
Non-Warranty Repairs and Replacement – US and Canada
Non-warranty repairs in the United States and Canada should be sent to a
Amprobe® Test Tools Service Center. Call Amprobe® Test Tools or inquire
at your point of purchase for current repair and replacement rates.
In USA In Canada
Amprobe® Test Tools Amprobe® Test Tools
Everett, WA 98203 Mississauga, ON L4Z 1X9
Tel: 888-993-5853 Tel: 905-890-7600
Fax: 425-446-6390 Fax: 905-890-6866
Non-Warranty Repairs and Replacement – Europe
European non-warranty units can be replaced by your Amprobe® Test
Tools distributor for a nominal charge. Please check the “Where to Buy”
section on www.amprobe.com for a list of distributors near you.
European Correspondence Address*
Amprobe® Test Tools Europe
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
*(Correspondence only – no repair or replacement available from this
address. European customers please contact your distributor).
®
6
Clamp Meter
1
1
CAT III
600V
HOLD
AC
DC
A
2
CAT III
5
4
600V
HOLD
A
AC40B
2
100 20 4030
CAT 600V
400A
MAX
600V
COM
MAX
3
6
AD40B
100 20 4030
CAT 600V
MAX400A
7
7
2
Current
CAT III
AC40B
COM
HOLD
A
CAT 600V
400A
600V
AC
DC
MAX
600V
MAX
3
AC40B
COM
HOLD
A
CAT 600V
400A
600V
600V
AC
DC
3
2
4
5
MAX
MAX
1
CAT III
8
4
CAT III
600V
1
HOLD
AC
DC
A
3
4
AC40B
COM
CAT 600V
400A
600V
MAX
MAX
5
2
5
AAA
AAA
9
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