P/N 964774 rev.A
OPERATING INSTRUCTIONS
for
AMPROBE
®
Flexible Current Transducer
Model ACF-3000DM-A
AMPROBE
1
TABLE OF CONTENTS
LIMITED WARRANTY ..................................................................................3
INTRODUCTION ..........................................................................................4
ACF-3000DM-A ELECTRONICS PACKAGE................................................4
FLEXIBLE AC CURRENT TRANSDUCER....................................................6
OPERATION..................................................................................................7
MAINTENANCE ............................................................................................8
BATTERY REPLACEMENT ..........................................................................9
SPECIFICATIONS ......................................................................................10
2
LIMITED WARRANTY
Congratulations! You are now the owner of an AMPROBE
®
instrument. It has
been quality crafted according to the highest standards of quality and work-
manship. This instrument has been inspected for proper operation of all its
functions and tested by qualified factory technicians according to the long-es-
tablished standards of AMPROBE
®
.
Your AMPROBE
®
instrument has a limited warranty against defective mate-
rials and/or workmanship for one year from the date of purchase provided
that the seal is unbroken or, in the opinion of the factory, the instrument has
not been tampered with or taken apart.
Should your instrument fail due to defective materials, and/or work -
manship during the one year warranty period, return it along with a
copy of your dated bill of sale which must identify instrument by model
number and manufacturing number.
AMPROBE
Tel: 305-423-7500
Fax: 305-423-7554
Tech. Support: 1-800-327-5060
Outside the U.S.A. the local Amprobe representative will assist you. Above
limited warranty covers repair and replacement of instrument only and no
other obligation is stated or implied.
3
! ! WARNING ! !
(
Do not use until you have read this!
)
High-voltage potentials may exist in the vicinity of the desired current
measurements. Use locally approved safety procedures when work-
ing near high-voltage potentials. It is recommended not to install the
Flexible Transducer around a live bus that is at a high-voltage poten-
tial. If installation is not possible when the bus is disconnected from
main supply, use appropriate gloves and/or equipment that are ap-
proved for working around high-voltage potentials when installing the
Flexible Transducer in the vicinity of these hazardous potentials.
INTRODUCTION
The AMPROBE Flexible AC Current Transducer Model ACF-3000DM-A is an
assembly similar in purpose to a CTor current transformer. It may be used to
measure AC currents from as low as several amps to a maximum of 3.0kA
rms. The device output is an analog voltage that is proportional to the current
in the conductor. The output signal is isolated from the hazardous conductor
potential and is an exact replica of the AC current waveform in the conductor.
The output signal is available via a 2 pin snap connector.
ACF-3000DM-A ELECTRONICS PACKAGE
The ACF-3000DM-A electronics package is permanently connected to the
transducer and comes standard with two ranges selectable by the switch
mounted on the side of the electronics package. The ranges are 300A and
3.0kA yielding respectively 300A and 3.0kA rms AC as the maximum current
that can be measured. When one of the ranges is selected, the unit is auto-
matically turned on.
Note: The 3.0kArange should only be selected if the measured current
is over 300A.
4
When the ACF-3000DM-A is turned on, the LED mounted behind the front
label blinks once, then goes out to minimize drain on the battery. When the
batteries are nearing the end of their life the LED flashes approximately twice
per second, the batteries should be replaced and soon. If the LED fails to flash
once when the unit is turned on, the batteries are dead, replace immediately.
The ACF-3000DM-A comes equipped with an external mini jack located
on the package. This is for those wanting to supply power to the
ACF-3000DM-A for a longer period than the internal battery life will allow.
An external DC power supply is available for this purpose but is sold as an
option . The power required is +3.0VDC/10mA.
FLEXIBLE AC CURRENT TRANSDUCER
Fig. 1 - ACF-3000DM ELECTRONICS PACKAGE
Fig. 2a - ACF-5A: OUTPUT SIGNAL
Fig. 2b - ACF-5CE: OUTPUT SIGNAL
SUPPLIED ADAPTER FOR THE DM-II™
SUPPLIED ADAPTER FOR DM-II
PRO & DM-II CE
5
模拟与混合信号
