Panel-mounting ammeters mate with standard shunts

The DCA5-20PC series of LED-display DC ammeters precisely scale, digitise and display the output of standard 50/100mV DC shunts.

The DCA5-20PC series of LED-display DC ammeters precisely scale, digitise and display the output of standard 50/100mV DC shunts.

The "direct-connect" DCA5s are fully self-contained (with the obvious exception of the user-supplied shunt) including buffered inputs, scaling circuitry, precision reference circuits, 3.5-digit A/D convertors, LED displays, display drivers, DC/DC power convertors, and even screw-style terminal blocks for connecting the signal and supply lines.

The range comprises 44 models, with options encompassing the DC current range (11 ranges from 0-1 to 0-2000A), the LED display colour (brilliant blue, bright green or standard red), and the power supply.

Perfect for automotive, industrial, telecomms/datacomms, and marine applications, DCA5-20PC DC ammeters accommodate all power supply voltages from 5 to 75V DC.

There are two basic shunt/power configurations.

"Low-side," grounded-shunt models (5-40V DC power) target conventional ammeter applications in which one side of the shunt is connected to power ground.

These models consume a mere 75mW and are perfect for battery-backed use.

They also operate from -36 to -75V DC power, accommodating the popular -48V telecomms power bus.

"High-side," floating shunt models (8-36V DC power) incorporate onboard, isolated DC/DC convertors (500V DC isolation).

These models target applications in which neither side of the shunt is tied to power ground.

Incredibly flexible, isolated models consume 1W and can be used in any DC ammeter application without concern for common-mode or ground-loop problems.

DCA5-20PC series ammeters are housed in rugged, 35 x 22mm) plastic packages that feature a large, 9.4mm-high LED display.

An integral high-contrast optical filter ensures the display can be easily read at distances up to 5m.

All input and supply connections are made by way of two screw-style terminal blocks.

For added flexibility, vibration resistant, computer-style jumpers are provided for range-specific decimal-point assignments.

And, to ensure trouble free installation, all models include input overvoltage protection, input reverse-polarity protection.

A panel-mount bezel with EPDM sealing gasket is supplied with each unit.

For one-stop shopping and guaranteed compatibility, Datel offers a complete line of accessory shunts to with DCA5-20PC series DC ammeters.

Small quantities of DCA5-20PC DC ammeters, or free sample/evaluation units can be ordered directly from the Datel website using credit cards.

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