Xylem H-3521 - Manual (Page 51)

Appendix A
Specifications
H-3521
Specifications A-1
Accuracy
(Maximum percent of error in measurement)
Pressure:
Less than or equal to 0.03% 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:
0.001%
Temperature: 0.001%
Linearity
Less than 0.03% deviation from a straight line referenced to
end points
Pressure Hysteresis
Less than 0.02% of FSO
Long-term Stability
Accuracy drift is less than ±0.05% of FSO per year
Standard Pressure Ranges
Pressure
Depth Accuracy
0 to 15 PSI 0 to 34.6 ft. ±0.01 ft.
0 to 30 PSI 0 to 69.20 ft ±0.02 ft.
Custom calibration ranges available from 15 - 100 PSI
Pressure Overload
Less than 2 times the rated pressure
SDI-12 Interface
Baud Rate:
1200
Protocol: SDI-12 V1.3, 7-bit even parity, 1 stop bit
Output Voltage Levels:
Minimum high level: 3.5 volts
Maximum low level: 0.8 volts
Response Time
SDI-12: 3-second measurement sequence (programmable)
RS-485 Interface
Protocol:
Modbus RTU
Port: RS-485
Baud Rate: Programmable (default=9600)
RS232 Interface
Protocol:
RS232, 8bit, No Parity, 1 stop bit
Baud Rate: 9600
4-20mA Output
Type:
4-20mA, optically isolated
Loop Voltage: 8.0V min, 35V max
Resolution: 4FA (12-bit DAC)
Power Requirements
Voltage Input:
10 to 16.0 Volts DC
Supply Current:
Sleep Mode 500FA typ
Active (measuring) 15mA typ
Bias Mode
1.5maA typ
Surge Protection: Built in, 1.5 KVA
Environmental
Operating Temperature:
-40° C to 60° C
Compensated Range: -30° C to 60° C
Storage Temperature: -40° C to 80° C
Media Compatibility
Liquids and gases compatible with RTV, stainless steel and
brass
Mechanical
Material: Fiberglass
Size: 4.76" x 4.76" x 2.5" high
Rating: NEMA-4 enclosure
Pressure Inlet: 1/8" female NPT
Atmospheric Vent: Sintered bronze, #10-32
Connectors
H-3521: Amphenol MS3102R16S-1P (7-Pin male)
Cable: Amphenol MS3106A16S-1S (7-Pin female)
(supplied with the H3521)
H-3521: Amphenol MS3102R10SL-3P (3-Pin male)
Cable:
Amphenol MS3106A10SL-3S (3-Pin female)
(connector available, order separately )
The W ATER LOG ® H-3521 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.