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PDF ( 数据手册 , 数据表 ) DCA5-20PCS

零件编号 DCA5-20PCS
描述 50mV & 100mV input / LED display / subminiature DC Ammeters
制造商 Datel
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DCA5-20PCS 数据手册, 描述, 功能
®®
w.DataSheet4U.com DCALE5D-52D0i0mspVPla&yC,D1SC0uS0bAmmemVinmrIiiaenettpueusrrets,Order online at www.datel.com
wwFeatures
mScales and displays the output of 5A to 2000A,
50mV & 100mV shunts
oCompletely self-contained – no additional
components required
.cWide power supply inputs: 5 to 40Vdc for
12V/24V/28V applications
U48V option for telecom supplies
Isolated-supply models for high-side shunts
t4Large, easy-to-read LED display with 0.37”
(9.4mm) high digits
eAvailable in red, blue or green LED displays
Subminiature 1.38” x 0.88” package with
escrew-style terminal blocks
hFactory calibrated to ±0.1% accuracy;
Reverse-polarity protection
SOver 50 models available
taDigital upgrade for analog meters
DATEL’s new DCA5-20PC Series dc ammeters are specifically designed to display
the output of all popular 50mV and 100mV dc-shunts. 25 input ranges provide for
precision measurement of dc currents from 1.000A to 2000A. With the exception of
an external shunt, the unit is 100% self-contained – no calibration or user-supplied
components are required. Available LED-display colors include brilliant blue, bright green,
and standard red. Three power supply options accommodate all popular dc-supply
voltages from 5V to 75Vdc, making these ammeters perfect for automotive, industrial,
telecom, and marine applications!
DCA5-20PC Series ammeters are housed in 1.38” x 0.88” (35mm x 22mm) rugged
packages that feature a large, 0.37”/9.4mm high, LED display. However, display visibility
is not compromised in any way: the display can be easily read at distances up to 15
feet (5 meters). All input and power supply connections are made by way of two screw-
style terminal blocks. For added flexibility, computer-style jumpers are provided for range-
specific decimal point assignments. And, to ensure trouble free installation, all models
include reverse-polarity protected power supply inputs.
Two input configurations are offered: grounded shunt (“low-side”), 5-40V-powered,
red LED models for cost-sensitive applications, and 8-36V isolated-supply models that
accept high-side or floating shunts. Isolated-supply models are available in a choice
of red, green, or blue LEDs. Since many dc ammeters are used in battery backup
applications, power consumption for 8-36V models is typically 1 Watt, and 75mW for
5-40V models.
Miniature size, wide supply inputs, and no-hassles installation make DCA5-20PC
Series ammeters the ideal choice for all your 50 and 100mV shunt ammeter-applications.
.DaLED DISPLAY
wwINPUT
w om*AMPLIFIER
+
CAL
A/D
CONVERTER
+5V
–5V
POWER
CONVERTER
U.c**
et41
She–IN
.DataEXTERNAL
www50 or 100mV SHUNT
2
TB1
+IN
SIGNAL
GROUND
Not included on all models
*** Open on isolated power models
Figure 1. DCA5-20PC Series Simplified Schematic
POWER
GROUND
12
12
TB2
+V –V (GND)
+–
EXTERNAL DC SUPPLY
DATEL, Inc., Mansfield, MA 02048 (USA) Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 E–mail: [email protected] Internet: www.datel.com












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