Xylem iRIS 150 GPRS DATALOGGERS - Manual (Page 8)

iRIS 150 V1.11 User Guide - 2
2 iQuest (NZ) Ltd - PO Box 15169, Hamilton, New Zealand Tel: +64 7 857-0810 Fax: +64 7 857-0811 Email: [email protected]
2 Overview
2.1 Introduction
The iRIS 150 (iQuest Remote Information Source) has been designed as a cost effective, low power, self
contained datalogger for use in a wide range of data gathering and logging applications.
The iRIS is supplied in a powder-coated die-cast aluminium enclosure. Power supply and I/O connections
are provided by a small screw terminal block within the unit. Cable access is via two NG12 glands on the
bottom edge of the enclosure. A small text/graphics LCD provides the user display and user input is via a
four key keypad in the same style as other iRIS dataloggers.
The iRIS supports a maximum of four virtual sensors, the sources of which can be chosen from a range of
physical digital or analogue types. Each sensor has two associated alarms, each with separate trigger and
reset levels. Each alarm also has an optional duration, which is used to delay the alarm trigger for analogue
inputs and to determine the time over which pulse input counters should be totalised (rainfall, flow meter
pulse etc). Data is logged in a four word (8 byte) compressed format which includes full date and time to
fractions of a second.
The alarm(s) can be linked to the digital output to activate external equipment when one or more alarms are
activated in the event of alarm activation.
2.2 Feature Summary
The iRIS 150 has the following features:
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IP65 rating
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LCD and keypad
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RS-232 interface
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4 simultaneous logging channels (virtual sensors)
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2 digital inputs (pulse, frequency, counter)
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2 analogue inputs (0-5V fixed span – current e.g: 0-20mA with internal resistor enabled)
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1 digital output (open drain pull-down)
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2 alarm setpoints per logging channel. Can activate the digital output if any alarm activated.
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Internal, replaceable 3.6V AA size lithium battery backup.
2.3 Typical Applications
The iRIS can be used for a wide range of diverse applications, including but not limited to:
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Rainfall measurement
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Water / power / gas metering
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River level monitoring
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Wind measurement
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Mobile temperature monitoring
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Irrigation monitoring / control