Datasheet > ACA-20PC-4-AC1-BL-L-C

ACA-20PC-4-AC1-BL-L-C

更新时间： 2024-11-02 11:01:31

品牌	Logo	应用领域
村田 - MURATA		/
页数	文件大小	规格书
6页	449K
描述
民用设备,工业设备

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ACA-20PC Series

Digital, LED-Display AC Ammeters with

Built-in Current Transformers

www.murata-ps.com

DATEL's new ACA-20PC Series are the ﬁrst 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.

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

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-ﬁlm resistors for

unsurpassed accuracy ( 0.15ꢀFS) and stability.

■

8 different models

■

Subminiature, 1.38" x 0.88" package

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.

■

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; 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.

SIMPLIFIED SCHEMATIC DIAGRAM

CAL.

3½ DIGIT

A/D CONVERTER

–

–V

LED DISPLAY

RMS-to-DC

CONVERTER

POWER

CONVERTER

(L1)

BUILT-IN

CURRENT

TRANSFORMER

Figure 1. ACA-20PC Series simpliﬁed schematic

TB1

MEASURED AC

LOAD CURRENT

AC INPUT POWER

For full details go to

www.murata-ps.com/rohs

www.murata-ps.com/support

MPM_ACA_20PC.B11 Page 1 of 6

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与ACA-20PC-4-AC1-BL-L-C相关器件

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ACA-20PC-4-DC1-BL-L-C	MURATA	获取价格	民用设备,工业设备
ACA-20PC-4-DC1-BL-L-C		获取价格	Digital, LED-Display AC Ammeters with Built-in Current Transformers
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