analog wireless remote process control

PROCESS CONTROL RI-4 Radio Frequency (RF) Transmitter with Four Universal Inputs communicates point information to a Model RO-4 receiver. Each of the four input points may be configured for status contact, analog 0-20 mA, or 0-10 VDC input signals. The transmitter is tuned to 923 MHz and 50 mW for an open-air effective range of 2700' (823m). There is no RF tuning, no external RF antenna, and no specific radio experience required to install or use the system. The RF signal uses proven spread-spectrum technology.

Eliminates wiring
Four universal input points
Spread-spectrum technology
No FCC license required
200' to 500' (61 to 152m) in-building range
2700' (823m) open-air range
923 MHz RF carrier
No external antenna required
50 addresses per facility

SPECIFICATIONS

	Universal Input
	Supply Power	24 VAC/DC ą10% @ 100 mA
	Inputs (4)	Selectable digital or analog
	Digital	Dry contact or transistor switch
	Analog	0-20 mA, 0-10 VDC
	Impedance	250ohm (mA), 20 kohm (VDC
	A/D resolution	12-bit converter
	Ambient temp	14° to 140° F (-10° to 60° C)
	Ambient RH	5% to 95% RH noncondensing
	Connection	Terminals screws
	Housing	NEMA 4, plenum rated
	Weight	1.2 lb (.56 kg)
	Dimensions	5.11"W x 5.11"H x 2.95"D (12.9 x 1.9 x 7.5 cm)
	Aux power out	20 VDC @ 100 mA for loop power
	Radio
	Frequency	923.58 MHz
	Transmitter power	50 mW
	Transmission interval	0.5 sec to 30 min. (factory set to 30 sec)
	Transmission time	16.6 msec
	Antenna	Built into circuit board
	Modulation	Direct sequence, spread spectrum
	Data rate	19.2 KBPS
	Approvals	FCC CFR part 15.247
	Address Structure
	Facility code	Unique for each system
	Transmitter address	50 addresses per system @ 30 sec intervals
	Point ID	1 through 4