Datel 20A Uživatelský manuál stáhnout pdf

CURRENT LIMITED

AC OR DC SUPPLY

3½ DIGIT

A/D CONVERTER

+V –V

–

RMS-to-DC

CONVERTER

CAL.

BUILT-IN

CURRENT

TRANSFORMER

LED DISPLAY

POWER

CONVERTER

TB1

A B

(L1)

MEASURED AC

LOAD CURRENT

www.murata-ps.com

www.murata-ps.com/support

For full details go to

www.murata-ps.com/rohs

SIMPLIFIED SCHEMATIC DIAGRAM

Figure 1. ACA-20PC Series simpliﬁ ed schematic

Now

Available with

Wire Lead CTs

ACA-20PC Series

Digital, LED-Display AC Ammeters with

Built-in Current Transformers

MPM_ACA_20PC.B13 Page 1 of 6

FEATURES



Built-in Current Transformers for direct measurement

of 0 to 2/20/50/100 Amps



Functionally complete:

On-board current transformers

Scaling/interface circuitry

Precision A/D converters

Bright red LED displays



8 different models



Subminiature, 1.38" x 0.88" package



Easy-to-read, 0.37"/9.4mm digits



AC powered models 85-264Vac @ 50/60Hz



"Self-powered" 85-264Vac, 2A and 20A models feature

built-in load connections



+5-40V dc powered models



2000V isolation; approvals to UL/cUL/IEC/61010-1

DATEL's new ACA-20PC Series are the ﬁ rst digital ac ammeters to incorporate on-board current

transformers (CT’s), and they are amazingly easy to use. Simply pass the current-carrying load

wire through the ACA-20PC’s on-board CT, apply power to the meter's two supply terminals,

and you’re instantly measuring ac currents over one of four ranges (0-2A with 1mA resolu-

tion, 0-20A with 10mA resolution, or 0-50A and 0-100A with 100mA resolution). Absolutely no

external components, such as expensive low-value shunts or 5A "donut" CT’s, are required.

Meters are ac powered (120/220Vac @ 50/60Hz) or dc powered (+5-40V) and impose

minimal loads (50mA max. and 120mA max., respectively) on their supplies. All models employ

auto-zeroing circuits, precision bandgap references, and super stable thin-ﬁ lm resistors for

unsurpassed accuracy (±0.15%FS) and stability.

The functionally complete ACA-20PC ammeters provide all the scaling/interface circuitry to

mate the CT’s output to a precision (3½ digit) A/D converter. The A/D's output goes directly to

drivers for the meters’ large (0.37"/9.4mm digit height), easy-to-read, LED displays. AC-pow-

ered units have on-board AC/DC converters, and wide-range dc-powered units have on-board

linear regulators. AC-powered models can be powered by the same ac supply whose current

they are monitoring. The 2A and 20A, 85-264Vac, 50/60Hz ("AC1") models feature additional

on-board terminal blocks to supply power to the external load. All models provide 2000Vdc iso-

lation between the measured ac current and their power supply, and all are UL/CSA recognized.

Each meter is housed in a subminiature, 1.38" x 0.88", epoxy-encapsulated package. Total

behind-the-panel installation depth is approximately 2 inches.

US E156931

1 2 3 4 5 6

ACA-20PC Series 1

Shrnutí obsahu

Strany 1 - ACA-20PC Series

CURRENT LIMITEDAC OR DC SUPPLY 3½ DIGIT A/D CONVERTER +V –V –+RMS-to-DC CONVERTER CAL. BUILT-IN CURRENT TRANSFORMER LED DISPLAY POWER CONVERTER TB1 A

Strany 2

➀ The ACA-20PC-1-AC1-RL and ACA-20PC-2-AC1-RL have 4-position on-board terminal blocks. All other models have 2-position terminal blocks.➁ Speciﬁ ed f

Strany 3

www.murata-ps.com/supportACA-20PC SeriesDigital, LED-Display AC Ammeters with Built-in Current TransformersMPM_ACA_20PC.B13 Page 3 of 6IMPORTANT! To

Strany 4

First pass and carefully dress one external load wire through the on-board CT (L1). Then connect the ac supply and load wires to TB1 as shown. If requ

Strany 5

ACA-20PC-1 & 2-AC1-RLACA-20PC-3 SeriesMechanical Dimensions: Inches (mm) Tolerances: 2 PL DEC ±0.02 (±0.51), 3 PL DEC ±0.010 (±0.254)ACA-20PC-4 S

Strany 6

* 1.350 (34.3) for ACA-20PC-4-XXX 100A model with pc-board mounted CTs.® ® BEZEL Gasket#2-56 INSERT0.156 (3.96) DEEPFRONT VIEW1.280(32.51)0.187(4.75

Další dokumenty pro Svařovací systém Datel 20A

Datel 20A Specifikace (6 stránky)

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