NMEA 0183 TO 4-20 mA CURRENT LOOP INTERFACE.

NMEA 0183 to 4 - 20 mA CURRENT LOOP or VOLTAGE INTERFACE - KW920-SV D420 INTERFACE

	IN, NMEA 0183
	OUT, 4-20 mA or +/-10v

The interface accepts NMEA 0183 data from navigation instruments, sensors or interfaces, and converts it into one 4 to 20 mA current loop drive.

4 to 20 mA is an industrial standard commonly used to drive analogue indicators (DIN144 for example), PLCs, data loggers and chart recorders. (It can drive moving coil analogue meters.)

Applications are converting ships heading and rate of turn to 4-20 mA, echo sounder, rudder angles, engine RPM, or RPM and pitch. An option selection switch allow new options to be added, retaining the previous ones. Contact us with your exact requirements.

The interface can be used for a VOLTAGE OUTPUT (0 to 10v) instead of current loop. Applications could be to turn SPEED into millivolts per knot.

INPUT:

	1 NMEA 0183 port.
	Accepts data appropriate to option switch.

OUTPUT:

	4-20 mA output channel. 10 volts maximum, therefore 500 ohms highest resistance load.
	ACCURACY: typically 0.5 %.
	The output is electrically isolated from ground and power.
	0 mA output if input data absent or invalid.

OPTIONS (so far):

	Gyro heading
	Rate of turn.
	Marimatech echo sounder.
	Rudder sensor angle.
	Engine RPM interface.
	Echo sounder depth 0 - 300m
	GPS speed over ground
	Depth metres
	See PDF data sheet for full details of more than 21 options

POWER ETC:

	9 to 30 volts DC at 300 mA.
	All connections lift-off terminal blocks.
	Black texture coat diecast box 222 x 146 x 55 mm
	Fitted with compression glands. Single pcb.
	Leds on data input and bicolour status

DATA SHEET

Open web site at the start

ADITEL MARINE ELECTRONICS UK
	Tel / fax	44 (0) 1873 840405
	Fax:	44 (0) 1873 840106
	AMI	44 (0) 2380 480450
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