DATELs 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 meters 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 imposeminimal 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 (±0.15FS) and stability.

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