Xylem H-310 - Manual (Page 23)

Appendix A
Specifications
H-310
Appendix A Specifications A-1
Accuracy
(Maximum percent of error in measurement)
Pressure:
Less than or equal to 0.02% of full
scale output (FSO) over
temperature range referenced to a
straight line stretched from zero psi
to maximum pressure.
Temperature: Internal temperature ±1 C over
temperature range.
Resolution
(Smallest change detectable in output signal)
Pressure:
1 part in 250,000 (0.0004%)
Temperature: 1 part in 250,000 (0.0004%)
Linearity
Less than 0.02% deviation from a straight line
referenced to end points.
Pressure Hysteresis
Less than 0.01% of FSO.
Long-term Stability
Accuracy drift is less than +0.05% of FSO per year.
Response Times
SDI-12: 8 second measurement sequence
RS-232C: 8 second measurement sequence
(both modes programmable to 1
second "fast measure")
Range
Pressure Depth
0 to 5 psi 0 to 11.53 ft.
0 to 15 psi 0 to 34.60 ft.
0 to 30 psi 0 to 69.20 ft.
Pressure Overload: Less than 2 times the
rated pressure.
Environmental Restrictions
Operating Range: 0 to 40 C
(non-freezing)
Compensated Range: 0 to 40 C
Storage: -10 to 55 C
Media Compatibility
Liquids and gases compatible with PVC, RTV and
stainless steel.
Pressure Port
Stainless steel screen with 149 micron filter, field
replaceable.
Power Supply
Voltage: 9.6 to 16.0 volts DC
Supply Current:
Sleep Mode: 1 mA maximum
Active (Measuring): 50 mA maximum
Dry Air System
Prevents moisture from condensing in the
submersible pressure transducer, provides
compensation for changes in atmospheric pressure
without impairing the sensor's accuracy.
SDI-12 Output
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
maximum cable length: 1000 ft.
RS-232C Output
(requires optional H-214)
Baud Rate: 1200
Protocol: RS-232C, 7-bit even parity, 1 stop bit
Mechanical Data
Material: PVC Barrel, Isoplast end caps, and
polyethylene vent tubing
Size: 1.425" maximum diameter x 10" long
Cables
Sensor Cable (H-310 to junction box): vented,
shielded, three-wire cable; 10 foot standard length
(longer lengths are available if required).
Warranty
The W ATER LOG ® H-310 is warranted against
defects in materials and workmanship for one year
from date of shipment.