Xylem 4015 SDI-12 TO ANALOG CONVERTER - Manual

Model 4015 SDI-12 to Analog Converter
Instruction Manual 60-0004015-00
1.0 INTRODUCTION
1.1
General description:
The Model 4015 is used as an interface between an SDI-12 serial communications
bus and an analog measurement system. The converter can either act as a SDI-12
master by polling a sensor on a timed basis or “listen only” as an external
recorder polls the sensor. Each 4015 responds to a single SDI-12 address and
parameter. Multiple 4015 converters can be used to translate several sensor
parameters to individual analog outputs. The output of the converter is
proportional to the “value” of the sensor response. Full scale and zero values can
be programmed by the user to scale the analog output with respect to the raw
sensor value.
The 4015 can be configured to provide a 0-1mA , 0-20mA , or 4-20mA current
output with 0-5 volt output always available. The connection to the data
transmitter or measurement system consists of continuous power (10 to 33VDC),
ground, and a switched read voltage (5 to 33VDC) that enables the analog
output. With the read terminal energized, power consumption increases to the
sum of the current output (20mA max) and an additional 4 mA (max). With the
read terminal de-energized, current drops to less than 500 uA.
All user programming is done over the SDI-12 bus.
1.2
Specifications:
Size: 3.5”L X 0.75”W X 2.1”H
Weight: 1.9 oz.
Operating Temperatures: -30 to 60 degrees Centigrade
Power requirements: 10 to 33 VDC
8mA + Output current (max) during read.
Mounting: DIN rail (35mm)
Connections: Screw Terminal
Wire Size: #24 - #14 AWG
Communication: SDI-12 (version 1.1 compliant)
Output Resolution 12 bits
Accuracy better than 0.1%