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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 (¡À0.15FS) and stability.

FEATURES

¡ö Built-in Current Transformers for direct measurement of 0 to 2/20/50/100 Amps

¡ö Functionally complete:

On-board current transformers

Scaling/interface circuitry

Precision A/D converters

Bright red LED displays

¡ö 8 different models

¡ö Subminiature, 1.38 x 0.88 package

¡ö Easy-to-read, 0.37/9.4mm digits

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

¡ö Self-powered 85-264Vac, 2A and 20A models feature built-in load connections

¡ö +5-40V dc powered models

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