Appendix a specifications, H-340 sdi – Xylem H-340SDI User Manual

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Appendix A

Specifications

H-340SDI

Appendix A Specifications A-1

General

Output:

SDI-12

Power Input

Voltage:

9.6 to 16.0 Volts DC

Current:

Standby Mode:

150 A

Raining:

3.7 mA for 60 sec

Communicating:

9.8 mA

Timing

SDI-12:

1 second measurement

sequence

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: 200 ft.

Environmental (electronics)

Operating Temperature: -40 to 50 C

Storage Temperature:

-50 to 70 C

Mechanical

Operating Temperature: -0 to 50 C

Connectors

SDI-12 Output: 4-position spring clamp terminal

block (WAGO).

Mechanical

Bucket Tip

Sensor:

Magnetic reed switch.

Aperture:

8" diameter funnel

Housing:

8" diameter extruded aluminum

tube. Cast aluminum base with

drain tubes in the bottom.

Anodized aluminum internal parts.

Stainless steel screws and

fasteners. Powder painted base,

funnel and housing.

Mounting:

3 leveling screws with bolt down

feet.

Weight:

8 pounds

Calibration

Built in processor measures the time between bucket

tips (rainfall rate) and uses this data to compute the

bucket volume per tip at the current rainfall rate. A

built-in polynomial provides corrected bucket volume

for rainfall rates between 0 and 25 in/hour.

Warranty

The

ATER

LOG

H-340SDI is warranted against

defects in materials and workmanship for one year

from date of shipment.