User Manual

Global Water Instrumentation
19
Appendix A: Specifications
Analog Inputs: Up to 8 inputs av ailable
10-bit resolution
Type: 0-20mA, 0-1mA, 0-500uA, 0-5VDC, 0-10VDC
Sensor Power: 5Vsw, 12Vsw, 18Vsw or 12V Continuous
Digital Inputs: Up to 3 inputs available, c ounters or status
Contact closure or open collect or to ground
Inputs hav e 20K pull-up r esistor to 5VDC
Maximum ac c um ulator count: 2047 ( 11-bit)
Control Outputs: Up to 2 outputs available
Open collect or output to ground
100mA each output maximum
Inductiv e load pr otected
Radio Modem: Frequency: Transmit-150MHz , Receive-138MHz
Communicat ion s peed: 9600 Baud
Transmit power: 5 Watt
Antenna: 1 meter whip, 16 foot c able s tandard
Power Supply: 12VDC, 5Ahr Batt er y standard
Current draw : 80mA in receive m ode @12VDC
5mA in power save mode
2A briefly when transmitting
Environment: -40° to +60° Celsius, -40° to 140° Fahrenheit
100% Humidity, N on-condensing