Extech Instruments CA310 MP3 Player Accessories User Manual


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Model CA310 Version 1.1 06/03
Support Hotline (781) 890-7440
Tech support: Ext. 200; Email: support@extech.com
Repair/Returns: Ext. 210; Email: repair@extech.com
Website: www.extech.com
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Read mV
Set to AC V
Voltage input
AC Current Measurements
1. Set the DMM to the AC mV range or to a low AC voltage range.
2. Connect the RED test lead to the DMM '+' Voltage terminal and the BLACK lead to
the '-' COM terminal.
3. Press the Jaw Trigger to open the jaw and clamp around a single conductor.
Incorrect Correct
4. Read the voltage on the DMM display and then divide this reading by 10 to get the
current reading in Amps (10mV AC per 1A of AC current).
Refer to the TABLE below for examples of interpreting the DMM display:
Note: Do not apply voltage to the clamp adaptor’s test leads
Note: For small currents, use the RELATIVE function (if available) on the DMM with no
wire clamped to zero the meter and improve accuracy.
Warranty
EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and
workmanship for one year from date of shipment (a six month limited warranty applies on sensors and
cables). If it should become necessary to return the instrument for service during or beyond the warranty
period, contact the Customer Service Department at (781) 890-7440 ext. 210 for authorization or visit
our website at www.extech.com (click on ‘Contact Extech’ and go to ‘Service Department’ to request an
RA number). A Return Authorization (RA) number must be issued before any product is returned to
Extech. The sender is responsible for shipping charges, freight, insurance and proper packaging to
prevent damage in transit. This warranty does not apply to defects resulting from action of the user such
as misuse, improper wiring, operation outside of specification, improper maintenance or repair, or
unauthorized modification. Extech specifically disclaims any implied warranties or merchantability or
fitness for a specific purpose and will not be liable for any direct, indirect, incidental or consequential
damages. Extech's total liability is limited to repair or replacement of the product. The warranty set forth
above is inclusive and no other warranty, whether written or oral, is expressed or implied.
Copyright © 2003 Extech Instruments Corporation.
All rights reserved including the right of reproduction in whole or in part in any form.
Interpreting the DMM display
DMM AC Range Current DMM Display Display ÷ 10 = A
V range 300A 03.00 V 0.300
mV range 199A 1990 mV 199
mV range 20A 200.0 mV 20
mV range 2A 20.00 mV 2
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