ACA5-20PC 데이터 시트보기 (PDF) - DATEL Data Acquisition products
부품명
상세내역
일치하는 목록
ACA5-20PC Datasheet PDF : 5 Pages
| |||
Order on-line
at www.datel.com
®
®
ACA5-20PC Series
Digital-Readout
LED-Display
E156931
50-2000A AC Ammeters
Features
• Scales and displays the output of 50:5A to
2000:5A current transformers
• 14 ranges (0-50 Amp to 0-2000 Amp)
• 3 LED options, 6 power options, 112 models
• Functionally complete:
On-board 5A current transformers
Scaling/interface circuitry
Precision A/D converters
Bright red or green LED displays
• Subminiature, 1.38" x 0.88" package
• Easy-to-read, 0.37"/9.4mm digits
• AC powered models: 120Vac @ 400Hz,
120/220/277Vac @ 50/60Hz
• AC models can be "self-powered"
• DC powered models: +5V, +5-40V, +36-75V
• 2000V isolation; UL/CSA recognized
• Digital replacements for analog ammeters
ACA5-20PC Series AC Ammeters are designed to scale and digitally display the
output of standard, 5A-output current transformers (50:5A, 500:5A, 1000:5A, etc.).
Simply pass the secondary/output wires of the "primary" CT through the ACA5-20PC's
on-board CT, apply power to the meter, and you're instantly measuring ac currents over
one of 14 ranges from 0-50A (with 100mA resolution) to 0-2000A (with 1A resolution).
Because they accept outputs from previously installed high-current CT's, ACA5-20PC's
can instantly bring modern digital precision to older ac ammeters.
The functionally complete ACA5-20PC ammeters incorporate scaling/interface
circuitry to mate the on-board CT to a precision (3½ digit) A/D converter. The A/D's
output directly drives the meters' large (0.37"/9.4mm digit height), easy-to-read, LED
displays. All models employ auto-zero circuits, precision bandgap references, and super
stable metal-film resistors for unsurpassed accuracy (±0.15%FS) and stability.
ACA5-20PC meters are either ac (120/220/277Vac @ 50/60Hz or 120Vac @ 400Hz)
or dc (+5V, +5-40V, or +36-75V) powered. AC models can be powered by the same ac
supply whose current they are monitoring. All ACA5-20PC's provide 2000Vdc isolation
between the measured ac current and their power supply, and all models are UL/CSA
recognized.
Each meter is housed in a subminiature, 1.38" x 0.88", epoxy-encapsulated package
whose behind-the-panel installation depth is 2 inches. Display color options include
standard red, high-intensity red, and standard green. Each meter is supplied with a
plastic bezel assembly with sealing gaskets (DATEL DMS-BZL4).
PRECISION
FULL-WAVE
RECTIFIER
(L1)
CAL.
+
3½ DIGIT
A/D CONVERTER
–
+V
–V
POWER
CONVERTER
LED DISPLAY
BUILT-IN
0-5A CURRENT
TRANSFORMER
A
B
+–
TB1
OUTPUT FROM 50:5A
TO 2000:5A EXTERNAL
CURRENT TRANSFORMER
AC or DC
INPUT POWER
Figure 1. ACA5-20PC Series Simplified Schematic
DATEL, Inc., Mansfield, MA 02048 (USA) • Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 • E–mail: sales@datel.com • Internet: www.datel.com
Share Link: 