Xylem SDI-12 RADAR - Manual (Page 5)

Below is a quick overview of the common features of all radar series products.
• Simple to install, use, and maintain
• Non-contact level measurement eliminates the need for stilling wells and other infrastructure.
• Undamaged by ice, logs or debris
• ±3.0mm accuracy with standard model
• -40 ° C to +80 ° C operation
• NEMA 4x enclosure is suitable for outdoor installations
• Stainless steel horn (H-3611/ H-3612)
• Frequency range - approx 26 Ghz
• Built-in LCD screen for monitor and setup
• Low current operation (8.0 mA typical standby)
• Continuous operation, no warmup or “lock on” needed
• Extended SDI-12 commands for setting the Stage to the current water elevation.
• Built in 3 or 6 minute “NOAA” mode measurements.
• Optional fast mode sends the service request within 55mS for sustained 1-second data logging.
The radar Level gauge consists of an integrated microwave transmitter and sensor together with a
horn antenna. The horn antenna serves to focus the transmitted signal as well as to receive the
reflected echo. a built-in SDi-12 interface provides low power operation, data processing and
SDi-12 communications with the data logger.
• Battery powered operation with minimal current drain
• measurement data is transmitted digitally over long cable lengths without error
• multiple sensors on a simple three-wire cable
• Up to 250 feet of cable between a sensor and the data recorder (Use of an H-423, SDi-12 to rS485 or an
H-4500 fiberoptic media converter extends the range to 1000’s of feet)
Introduction
3
The waterLoG® radar Series consist of
the H-3611, H-3612 and H-3613 products.
Typical applications include non-contact
measurement of river, lake and reservoir
water level. The sensor makes multiple
distance measurements, averages the
results and converts the measurement
data into Stage in units of Feet, meters or
other engineering units.
The radar Series is easy to use and works
with any data recorder/logger with a SDi-
12 interface. They are powered from the
+12V wire of the 3-wire SDi-12 bus. The
Serial-Digital interface (SDi-12) is ideal
for data logging applications with the
following requirements:
Features
Description