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Datel 20A Spezifikationen

Stöbern Sie online oder laden Sie Spezifikationen nach Schweißsystem Datel 20A herunter. Datel 20A Specifications [en] Benutzerhandbuch

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Figure 1. Simplifi ed Schematic
FEATURES
Built-in shunts for digitally measuring dc currents
from 200uA to 20A
Functionally complete – no additional components
required
Wide power supply inputs:
5 to 40Vdc for 5V/12/24V/28V applications
36-75V option for telecom supplies
8-36Vdc Isolated-supply models for high-side shunts
20mV internal shunt minimizes power loss
Includes load connections for easy 3 or 4-wire
operation
High resolution; Factory calibrated to ±0.1% accuracy
Large, easy-to-read, LED display with 0.37” (9.4mm)
high digits
Available with red, blue or green LED displays
Small 1.38˝ x 0.88˝ x 1.0˝ package
Murata Power Solutions’ new DCA-20PC Series are the fi rst digital dc ammeters to include built-in
shunts for measuring dc currents up to 20A. Six ranges provide for precision measurement of
dc currents from 200uA to 20A. These ammeters are 100% self-contained; no calibration or
user-supplied components are required—they even include terminal blocks for your external load
circuit, a feature that enables simple 3-wire operation!
Two shunt-confi gurations are offered: grounded-shunt (“low side”), 5-40V-powered models
for cost-sensitive applications, and 8-36V isolated-supply models for high side or fl oating shunt
applications. A versatile power supply design accommodates all popular supply voltages from 5 to
75Vdc. Reverse-polarity-protected supply inputs ensure trouble free installation. And, because many
dc ammeters are installed in battery backup applications, power consumption is typically below 1
Watt for 8-36V models, and below 75mW for 5-40V models. To further reduce overall power con-
sumption, the voltage dropped across its built-in series shunt is only 20mV!
DCA-20PC Series ammeters are housed in subminiature, 1.38˝ x 0.88˝ (35mm x 22mm),
rugged packages that feature a large, 0.37˝/9.4mm high, LED display. A built-in, high-contrast
color fi lter ensures that legibility is not compromised: the display can be easily read at distances
up to 15 feet (5 meters). Available LED-display colors include brilliant blue, bright green, and
standard red.
Built-in shunts, Precision electronics, miniature size, wide power supply inputs, low power
consumption, and no-hassle 3-wire installation make DCA-20PC Series the ideal choice for all
your 200uA to 20A ammeter-applications.
A/D
CONVERTER
LED DISPLAY
INPUT
AMPLIFIER
POWER
CONVERTER
TB1
–5V
+5V
TB2
POWER
GROUND
SIGNAL
GROUND
Open on isolated-supply models
Applies to isolated-supply models only
–V+VLOAD (+)+SHUNT
BUILT-IN
SHUNT
–
–
–SHUNT
(–V)
+
+
–
+
–
+
*
*
**
**
EXTERNAL
LOAD
EXTERNAL
DC SUPPLY
12
2
3
1
2
1
2
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
www.murata-ps.com/support
DCA-20PC Series
LED Display, Subminiature DC Ammeters
with Built-In Shunts
MPM_DCA-20PC.B07 Page 1 of 6
Seitenansicht 0
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Inhaltsverzeichnis

Seite 1 - DCA-20PC Series

　Figure 1. Simplifi ed SchematicFEATURESBuilt-in shunts for digitally measuring dc currents from 200uA to 20AFunctionally complete – no additional

Seite 2

Performance/Functional Specifi cationsTypical at TA = +25°C, unless otherwise noted.Input Range:Full-scale load current1 = 199.9μA2 = 1.999mA3 = 19.9

Seite 3

TECHNICAL NOTESFigure 2A. Low-Side Shunt Connections for "-DC1" 5-40Vdc Non-Isolated Supply ModelsFigure 3. Low-Side Shunt Connections for &

Seite 4

TECHNICAL NOTESFigure 4. High-Side Shunt Connections for "-DC4"8-36Vdc Isolated-Power ModelsFigure 5. Using "-DC4" Isolated-Power

Seite 5

TECHNICAL NOTESPANEL INSTALLATION Step 1. Step 2. Step 3. Step 4.All connections and modifi cations must be made after the ammeter is securely att

Seite 6

MECHANICAL DIMENSIONS: Inches (mm)TOLERANCES: 2 PL DEC ±0.02 (±0.51) 3 PL DEC ±0.010 (±0.254)1CALJ31212TB212TB1CAL1123TB212TB1FRONT VIEWALL MODELSBA

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Datel 20A Bedienungsanleitung (6 Seiten)

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