DATELs new ACA-20PC Series are the first digital ac ammeters to incorporate on board current transformers (CTâs), and they are amazingly easy to use. Simply pass the current-carrying load wire through the ACA-20PCâs on-board CT, apply power to the meters two supply terminals, and youâre instantly measuring ac currents over one of four ranges (0-2A with 1mA resolution, 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" CTâs, are required.
Meters are ac powered (120/220Vac @ 50/60Hz or 120Vac @ 400Hz) 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 (±0.15%FS) 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
⢠32 different models
⢠Subminiature, 1.38" x 0.88" package
⢠Easy-to-read, 0.37"/9.4mm digits
⢠AC powered models:
85-264Vac @ 50/60Hz
85-140Vac @ 400Hz
⢠"Self-powered" 85-264Vac, 2A and 20A
models feature built-in load connections
⢠+5-40V dc powered models
⢠2000V isolation; UL/CSA recognized
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