Xylem H-4191 - Manual (Page 21)

Appendix A
Specifications
H-4191
Specifications A-1
RS-232 Port
Type: Asynchronous, 9600 baud, 8-bit, no
parity (fixed)
Flow Control: RTS/CTS (optional)
Command Buffer: 60 characters
SDI-12 Port
Baud Rate: 1200
Protocol: SDI-12, 7-bit even parity, 1 stop bit
Output Voltage Levels:
Minimum high level: 3.5 volts
Maximum low level: 0.8 volts
Internal Voltage Monitor (Address “Z”)
Range: 6-18V
Resolution: 8-bit (.08V)
Accuracy: ±1%
Power Requirements
Voltage Input: 9 to 16.0 Volts DC
Supply Current:
Sleep Mode 100 A typ
Active 20mA typ
Surge Protection: Built in, 1.5 KVA
Environmental
Operating Temperature: -40° C to +50° C
Storage Temperature: -50° C to +70° C
Mechanical
Material: ABS plastic
Size 3.75" Long x 2.65" Wide x 1.25" Deep
Connectors:
RS-232: 9-Pin, female, D-sub, DCE connections
SDI-12 4-position terminal strip, pluggable,
Phoenix Combicon™
Warranty
The W ATER LOG ® H-4191 is warranted against defects in
materials and workmanship for one year from date of shipment.
Notes
Specifications subject to change without prior notice due to
ongoing commitment to product testing and improvement.