Appendix a specifications, H-4280, Specifications a-1 – Xylem H-4280 User Manual
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Appendix A
Specifications
H-4280
Specifications A-1
Analog Inputs
Input Range:
±5.0 V max
Measurement:
Unipolar: 0 - 5.0V
Bipolar: ±5.0V
Differential: 4-channels max
Resolution:
12-bit,
1.2mV (Unipolar)
2.4mV (Bipolar)
Linearity Error:
±0.5 LSB
Offset Error:
±3 LSB
On channel leakage current: ±1 A
Off channel leakage current: ±1 A
Sensor Excitation Output (& Internal A/D Reference)
Output Voltage:
5.000V ±0.04%,
switched off during sleep
Output Current:
10mA max
Warmup Time:
Programmable, 1 to 999 seconds
Data Processing
Averaging:
Programmable, 1 to 65535
samples per channel
Sample Rate:
700 samples/sec (all 8-channels)
User units:
y=mX+b (slope & offset)
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
Power Requirements
Voltage Input:
9 to 16.0 Volts DC
Supply Current:
Sleep Mode
85 A typ
Active
12mA typ
SDI-12 surge protection:
1.5 KVA
Environmental
Operating Temperature:
-40° C to +50° C
Storage Temperature:
-50° C to +70° C
Mechanical
Material:
ABS plastic
Size
5.65" Long x 3.32" Wide x 1.25" Deep
Connectors:
SDI-12:
4-position plug-in terminal strip,
Phoenix Combicon™ (provided)
Inputs:
12-position plug-in terminal strip,
Phoenix Combicon™ (provided)
W
arranty
The
W
ATER
LOG
®
H-4280 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.