Xylem iRIS 150 User Manual

iRIS 150

User Guide

For Software

Version: 1.11

Requires Firmware

Version: Vn/1.11+

Revision History:

Issue 1 31st July 2008 Preliminary release version for initial version of software version 1.10.
Issue 2 19th August 2008 First public release for software version 1.11.

Disclaimer
Under no circumstances will iQuest (NZ) Ltd be liable or responsible for any consequential damage or loss

that may arise from the use of this product.
All examples and diagrams shown in this manual and any supplied software examples are intended as a

guide to understanding this product, not to guarantee operation. iQuest (NZ) Ltd accepts no responsibility
for use of this product based on this information or these examples.

Owing to the wide variety of possible applications of this product, you must satisfy yourself as to its suitability
to your specific application.

© 2008 iQuest (NZ) Ltd
All rights reserved.

This publication, or any part of it, and any software accompanying it may not be copied, photocopied,
reproduced, translated or communicated to any third party, or reduced to electronic medium without prior
written permission from iQuest (NZ) Ltd.

iQuest (NZ) Ltd - PO Box 15169, Hamilton, New Zealand Tel: [phone] Fax: [phone] Email: [e-mail]

IRIS 150 V1.11 User Guide

Contents

1 Introduction.........................................................................................................................................1

1.1 About this Manual ..........................................................................................................................1

1.2 Support...........................................................................................................................................1

2 Overview..............................................................................................................................................2

2.1 Introduction ....................................................................................................................................2

2.2 Feature Summary ..........................................................................................................................2

2.3 Typical Applications.......................................................................................................................2

2.4 Technical Specifications ................................................................................................................ 3

2.5 Key Features..................................................................................................................................4

2.5.1 Terminal Configuration............................................................................................................4

2.5.2 Data Logging...........................................................................................................................4

2.5.3 Logged Data Array Identification.............................................................................................4

2.5.4 Alarm Processing.................................................................................................................... 4

2.5.5 Real Time Clock & Calendar...................................................................................................5

2.5.6 Security....................................................................................................................................5

3 Installation...........................................................................................................................................5

3.1 Recommended Deployment Procedure.........................................................................................5

3.1.1 Prior to site visit.......................................................................................................................5

3.1.2 Installation on site.................................................................................................................... 5

4 Hardware Description ........................................................................................................................ 6

4.1 Mounting ........................................................................................................................................6

4.2 I/O Connector.................................................................................................................................6

4.2.1 Internal Lithium Battery...........................................................................................................6

4.2.2 External Power Supply............................................................................................................6

4.2.3 Analogue Inputs ......................................................................................................................7

4.2.4 Digital Inputs............................................................................................................................ 7

4.2.5 Digital Output........................................................................................................................... 8

5 Configuration......................................................................................................................................9

5.1 Terminal Connection......................................................................................................................9

5.2 Terminal Cfg.................................................................................................................................10

5.3 Terminal Menus ...........................................................................................................................12

5.3.1 Main Menu (Level 1)..............................................................................................................12

5.3.2 Sensor Selection (Level 2).................................................................................................... 13

5.3.3 Sensor Cfg (Level 3) .............................................................................................................14

5.3.4 Alarm Selection (Level 4)...................................................................................................... 16

5.3.5 Alarm Cfg (Level 5) ...............................................................................................................17

5.3.6 Date/Time Cfg (Level 2)........................................................................................................ 17

5.3.7 Digital Output Cfg (Level 2)...................................................................................................18

5.3.8 Miscellaneous Menu (Level 2) ..............................................................................................20

6 Operation...........................................................................................................................................22

6.1 LED Status Indicators..................................................................................................................22

6.1.1 Blue Status LED....................................................................................................................22

6.1.2 Red I/O Status LEDs.............................................................................................................22

6.1.3 Red Comms Status LED....................................................................................................... 22

6.2 LCD & Keypad .............................................................................................................................23

6.2.1 LCD Operation ......................................................................................................................23

6.2.2 Status Icons........................................................................................................................... 23

6.2.3 Keypad.................................................................................................................................. 23

6.2.4 Display Menu Structure.........................................................................................................24

6.2.4.1 Log In/Out.................................................................................................................24

6.2.4.2 Title...........................................................................................................................24

6.2.4.3 System Status...........................................................................................................24

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6.2.4.4 I/O Summary.............................................................................................................25

6.2.4.5 Sensor Status...........................................................................................................25

6.2.4.6 Totals Screen (DI1)...................................................................................................25

6.2.4.7 Totals Screen (DI2)...................................................................................................25

6.2.4.8 Reset Totals Screen.................................................................................................26

6.2.4.9 Call-Back Test Screen..............................................................................................26

6.3 Scan Mode / Scan Rate............................................................................................................... 27

6.3.1 Continuous Mode.................................................................................................................. 27

6.3.2 Event Mode........................................................................................................................... 27

6.3.3 Timed Mode ..........................................................................................................................27

6.3.4 Telemetered Mode................................................................................................................ 27

6.4 General Hints...............................................................................................................................27

7 Sensor Connection Examples.........................................................................................................28

7.1 Connecting a Flow Meter or Rain Gauge .................................................................................... 28

7.1.1 Connecting a Burkert 8045 Flow Meter................................................................................. 29

7.1.2 Connecting a Seametrics EX Flow Meter.............................................................................29

7.1.3 Connecting a Mace RotoFlo® Flow Meter............................................................................30

7.2 Connecting a 0-5V Pressure Transducer .................................................................................... 31

7.3 Connecting a 2-Wire Loop-Powered 4-20mA Sensor..................................................................32

7.4 Measuring the External Supply Voltage.......................................................................................33

7.5 Connecting SDI-12 Instruments...................................................................................................34

7.6 Connecting an Up/Down Water Level Instrument........................................................................35

7.7 Connecting Analogue Wind Instruments ..................................................................................... 36

8 Troubleshooting ...............................................................................................................................37

8.1 The LCD display is blank.............................................................................................................37

8.2 Can not communicate via the RS232 port................................................................................... 37

8.3 The LCD screen for resetting totals is not available....................................................................37

8.4 The iRIS does not log correctly if continuous scan mode is selected..........................................37

8.5 Some samples are not logged in timed scan mode.....................................................................37

9 Appendix D – SDI-12.........................................................................................................................38

9.1 What is SDI-12?...........................................................................................................................38

9.2 Advantages of SDI-12..................................................................................................................38

9.3 SDI-12 Electrical Interface...........................................................................................................39

9.3.1 Serial Data Line..................................................................................................................... 39

9.3.2 Ground Line........................................................................................................................... 39

9.3.3 12 Volt-Line........................................................................................................................... 39

10 Firmware/Software Upgrade Procedure....................................................................................... 40

10.1 Overview....................................................................................................................................40

10.2 File Naming Conventions...........................................................................................................40

10.2.1 iRIS Executive Firmware.....................................................................................................40

10.2.2 iRIS Application Software.................................................................................................... 40

10.3 iRIS Executive Firmware Upgrade Procedure........................................................................... 41

10.4 iRIS Application Software Upgrade Procedure..........................................................................44

11 User Notes.......................................................................................................................................47

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IRIS 150 V1.11 User Guide

Tables / Figures

Table 1- I/O Terminal Designations................................................................................................................... 6

Table 2- Sensor Sources................................................................................................................................. 14

Table 3- Sensors Modes..................................................................................................................................15

Table 4- Sensor Logging Flags ....................................................................................................................... 15

Table 5 - Digital Output Modes........................................................................................................................ 19

Table 6 – LCD Status Icons............................................................................................................................. 23

Figure 1 – Analogue Selection Jumpers............................................................................................................ 7

Figure 2 – Digital Input Debounce Jumpers......................................................................................................7

Figure 3 – Digital Output Circuit ........................................................................................................................ 8

Figure 4 - RS232 Cable Pin Designations......................................................................................................... 9

Figure 5 – Terminal Menu Structure................................................................................................................ 12

Figure 6 – Status LED Positions...................................................................................................................... 22

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1 – IRIS 150 V1.11 User Guide

1 Introduction

1.1 About this Manual

This manual is intended as a detailed guide for iRIS 150 installation, configuration and operation.
This manual is also available online in Adobe Acrobat® pdf format for registered users at www.iquest.co.nz

NOTE: The term “iRIS” is used throughout this manual in all references to the iRIS 150.

1.2 Support

Technical support for the iRIS 150 is available by contacting:
iQuest (NZ) Ltd

P.O Box 15169
Hamilton
NEW ZEALAND

Tel: [phone]
Fax: [phone]
Email: [e-mail]

For latest information and software updates, visit the iQuest (NZ) Ltd web site at www.iquest.co.nz

iQuest (NZ) Ltd - PO Box 15169, Hamilton, New Zealand Tel: [phone] Fax: [phone] Email: [e-mail] 1

iRIS 150 V1.11 User Guide - 2

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:

• IP65 rating

• LCD and keypad

• RS-232 interface

• 4 simultaneous logging channels (virtual sensors)

• 2 digital inputs (pulse, frequency, counter)

• 2 analogue inputs (0-5V fixed span – current e.g: 0-20mA with internal resistor enabled)

• 1 digital output (open drain pull-down)

• 2 alarm setpoints per logging channel. Can activate the digital output if any alarm activated.

• 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:

• Rainfall measurement

• Water / power / gas metering

• River level monitoring

• Wind measurement

• Mobile temperature monitoring

• Irrigation monitoring / control

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3 – IRIS 150 V1.11 User Guide

2.4 Technical Specifications

Dimensions: 115mm x 79mm x 32mm (4.5in x 3.1in x 1.3in)
(Including RS232 connector and glands)

Mass: 281g (9.9 oz) including lithium battery.
Power Supply: Internal 3.6V 2400mA/Hr lithium battery which is normally used as a backup.

Primary supply - external 6-15V dc power supplies can be connected. The internal
backup battery is disconnected when the external supply present or USB is
connected. Nominal external supply current is 0.5mA with LCD backlight off.

Comms Interface: 1x RS232 DB9, DTE configuration. Fixed speed - 38400 bps. Or 1200bps / 9600bps

when active in telemetered mode.
1x USB slave via mini USB connector.
NOTE: The USB connector is unavailable unless the front label is opened which will

negate the IP65 rating. Contact iQuest for details on the USB connection.
SDI-12 Interface: SDI-12 hardware interface that fully complies with the SDI-12 electrical standard.
Digital I/O: 2 x Digital Inputs

- 30Vdc maximum input, switch to 0Vdc to activate.

- Maximum input frequency 5kHz. Debounce filtering is provided reducing the

maximum frequency to 20Hz. This is enabled by a jumper link.

1 x Digital Output

- Open drain pull-down (max 300mA @ 30V)

Analogue I/O: 2 x 12-bit uni-polar analogue inputs. Range 0-5000mV. Input impedance approx

100kΩ. Referenced to 0V common. Internal 250Ω resistor is provided for current

input. The current sink resistors are enabled by jumper links.
Logging Memory: Non-volatile 8MB flash storage of 1,048,576 time/date stamped data points. Circular

buffer mode (oldest data is overwritten when the buffer is full).
Clock/Calendar: Non-volatile with the integral lithium battery. Clock is fully Y2K compliant with leap

year recognition. Accurate to +/-20 secs month.

Environmental: Storage Temperature: -20°C - +85°C. (-4°F - +185°F)
Operating Temperature: -10°C - +70°C. (14°F - +158°F)

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iRIS 150 V1.11 User Guide - 4

2.5 Key Features

2.5.1 Terminal Configuration

All configuration and set-up parameters are modified via a standard ASCII terminal connected to the RS232
serial interface. This means that the user can configure the device without needing to have specialised
configuration software installed on their computer specifically for this purpose. Refer to Section 5.2 for
details on the terminal configuration.

2.5.2 Data Logging

The iRIS supports the logging of data from four virtual sensors. Each of the four virtual sensors can obtain
information from one of the following ten data sources:

• Analogue Input 1

• Analogue Input 2

• Pulse Counter attached to Digital Input 1

• Pulse Counter attached to Digital Input 2

• Simulated Pulse Counter enabled by Digital Input 1

• Simulated Pulse Counter enabled by Digital Input 2

• Frequency Counter attached to Digital Input 1

• Frequency Counter attached to Digital Input 2

• Up/Down Counter attached to Digital Inputs 1 & 2

• Database location (data obtained from special script)

• External DC power supply input – on change of state basis only.

• SDI-12.

Each sensor can be set up to scale the raw data source into engineering units through the application of a
multiplier and offset (slope and constant). The scaled value can be logged to non-volatile memory up to
once per minute or immediately in event mode for pulse inputs. As all logged data is stored in integer
format, a logging multiplier can be applied to the scaled value to maintain resolution.

It is also possible to configure a sensor to also log minimum, maximum or a calculated flow rate (pulse
source only) values. Refer to the following descriptions in Section 2.5.3 and also Section 5.3.3 for further
detail on configuring these extended logging features as part of the Sensor Cfg menus.

2.5.3 Logged Data Array Identification

Each sensor’s logged data is identified by an array ID number. For the primary logged data, the ID is the
sensor number itself. For the optional supplementary data (min/max/deviation/flow or total), the array ID has
an offset added to the sensor number that it is derived from. These ID offsets are as follows:

Minimum: +10
Maximum: +20

Standard Deviation: +30 (Not currently supported)

Flow Rate or Total: +40
For example, Sensor 4 has been configured to log the average value, plus the maximum. Two data arrays

will be logged for this sensor at each log interval with IDs of 4 and 24 respectively. In HydroTel™ 2000
these will then relate to point identifiers of 4/0 and 24/0.

2.5.4 Alarm Processing

Each virtual sensor can be checked for two separate alarm conditions. Each alarm has separate trigger and
reset levels, as well as an activation delay or accumulation period depending upon the data type. The alarms
can also be used to control the digital output or to generate a call-back to a base station when the logger is
operating in telemetered mode. See Sections 4.2.5 for further details on digital outputs or Section 6.3.4 for
details on using Telemetry mode.

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5 – IRIS 150 V1.11 User Guide

2.5.5 Real Time Clock & Calendar

The iRIS has a non-volatile real time clock that can be set by the user via a terminal session.

2.5.6 Security

The iRIS can be configured with a PIN code to prevent unauthorised access to restricted information through
the LCD and keypad. When a user is logged on, the totalisers can be reset via the keypad or a terminal
session. When the unit is locked, the totalisers can only be reset via a terminal session.

The PIN code is configured via a terminal session. See Option 7 in Section 5.3.10.

3 Installation

3.1 Recommended Deployment Procedure

3.1.1 Prior to site visit

 If possible, configure the iCE3 completely before taking it into the field for installation. Use the typical

configuration examples below as a guide. After configuration, when the battery is removed again
prior to installation, all configuration settings will be retained with the exception of the date and time
and data logging pointers. These are set as part of final commissioning.

3.1.2 Installation on site

 Remove the enclosure lid by removing the four screws from the corners.
 Mount the enclosure base in the desired location using suitable screws through the two mounting

holes in the base side walls.

 Remove the rubber sealing plug from one or both glands. Feed the connection cable(s) through the

glands, but do not tighten the glands yet.

 Terminate any instrumentation first (water meter reed switches, level sensors etc) before connecting

the datalogger. DO NOT LIVEN ANY POWER SUPPLIES YET.

 Strip the cable ends and trim the wire ends for connection into the terminals. If the cable is shielded,

ensure that loose shield wire ends are covered with heatshrink tube to prevent short circuits.

 Terminate the wire ends into the appropriate connectors. Note that the terminals are small and care

should be taken to avoid excessive bare wire lengths or loose strands being exposed.

 Check the settings of the analogue input and digital input jumpers and set them appropriately. Refer

to Sections 4.2.3 and 4.2.4 for details on these.

 Adjust the amount of cable inside the enclosure to enable the lid to be fitted easily without jamming.

Tighten the glands.

 Install the lithium battery, ensuring it is installed the correct way round. The logger should start.
 Secure the lid with the four screws. Apply external power if used (battery or d.c supply)
 With a laptop, set the time and date and also test that all sensor values are correctly scaled and

working.

 Initialise the logger which will reset pointers and totalisers. See Option 1 in Section 5.3.8
 Allow the logger to log at least a few samples. Unload the data and check it is correct.

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iRIS 150 V1.11 User Guide - 6

4 Hardware Description

4.1 Mounting

The iRIS 150 can be mounted to almost any surface by using suitable screws through the two internal
mounting pillars. These are exposed by removing the lid.

4.2 I/O Connector

All I/O and power supply terminations are via a small 12 way screw terminal block. The functions of the
connector terminals are shown in the table below.

Abbreviation Description

AI1 Analogue Input #1
GND Ground (Analogue)
AI2 Analogue Input #2
GND Ground (Analogue)
DI1 Digital Input #1
GND Ground (Digital)
DI2 Digital Input #2
GND Ground (Digital)
DO1 Digital Output
SDI SDI-12 data connection
+Vin 5-15Vdc External Power Supply
GND 0Vdc External Power Supply / Ground

Table 1- I/O Terminal Designations

4.2.1 Internal Lithium Battery

The iRIS has an internal AA size 3.6V, 2400mA/Hr lithium battery, which provides the power supply when no
external dc power supply is available. When external power is connected, the internal battery is completely
disconnected. The battery may be replaced by the user.

NOTE: 1) The internal battery is not intended for long-term use, rather as a back-up in the event of

loss of external power.

2) Standard AA batteries such as Alkiline, NiCad, NiMh, etc, cannot be used in the iRIS as
they are not of sufficient voltage to supply the iRIS.

4.2.2 External Power Supply

Although the iRIS is designed to operate solely from its internal battery for many months, you will typically
need to connect an external supply to the unit so that the internal battery remains in a charged state. Any
external dc power source ranging from 6 – 15 Vdc can be connected. A solar panel may also be connected
but will require a regulator to limit the voltage. A typical solar panel without regulation can generate voltage
up to 21V, which exceeds the iRIS 150 external dc input range.

The external power supply is protected against reverse connection or over-voltage by ultra-fast acting
protection devices and a self-resetting semiconductor fuse.

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7 – IRIS 150 V1.11 User Guide

4.2.3 Analogue Inputs

Analogue inputs are uni-polar 0-5Vdc with 12bit resolution. They present a load impedance of approximately
100KΩ.

Suitable scaling factors should be chosen to convert from a raw value of 0-5000, which reflects the input
signal range of 0-5V (0-5000mV). When current sources are used, an internal sink resistor (250Ω) is
connected between the analogue input and AGND. The diagram below shows the position of the two
analogue links. Fit the link to set the analogue input to current mode, or remove the link to set it to voltage
input mode (default).

Hint: If removing a jumper, simply fit it to one pin only of the connector to avoid it being lost.

AIN1 Jumper (JP3)

AIN2 Jumper (JP4)

Figure 1 – Analogue Selection Jumpers

4.2.4 Digital Inputs

The two digital inputs are jumper selectable for either mechanical or electronic operation. In either case it is
necessary to pull the input down to 0Vdc to activate it. Inputs will handle up to 30Vdc in the off state for
parallel connection across existing equipment. Jumpers are positioned to the left hand side of the I/O
connector. The top jumper is for Digital Input #1 and the middle jumper is for Digital Input #2.

Fit the jumper for mechanical switching at up to 20Hz. In this mode a 100nF capacitor is fitted across the
input to provide limited hardware debounce, preventing false triggering due to contact bounce. Remove the
appropriate jumper for electronic switching at up to 5kHz.

Hint: If removing a jumper, simply fit it to one pin only of the connector to avoid it being lost.

In almost all installations where an iRIS is
connected in parallel with other equipment to
share a common pulse input (e.g. from a flow
meter), there has not been a detrimental
effect, as the iRIS inputs present a relatively
high impedance to the circuit. However, in the
event that connecting an iRIS does cause
pulse failure, iQuest recommend removing the
debounce selection link for the appropriate
input. This sets the input to electronic
switching mode, even if the actual pulse
source is a clean contact (reed switch or
similar).

IMPORTANT NOTE!

DI1 Debounce
Jumper (JP1)

DI2 Debounce
Jumper (JP2)

Figure 2 – Digital Input Debounce Jumpers

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iRIS 150 V1.11 User Guide - 8

4.2.5 Digital Output

The Digital Output is open drain pull-down and is capable of sinking up to 300mA at 30Vdc. Typically this
could be used to drive a relay powered by an auxiliary d.c supply (e.g. 12V). In this mode, the negative of
the relay supply must be connected to one of the iRIS GND terminals.

The output can be programmed to follow a schedule for use in powering external sensors/circuits, or operate
in response to alarm activation from any of the sensors.

See Section 5.3.7 for details on the digital output modes.

Figure 3 – Digital Output Circuit

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9 – IRIS 150 V1.11 User Guide

5 Configuration

The iRIS configuration is initially achieved through the connection of a terminal to the RS232 serial port.
Upon detection of a terminal connection via the DSR signal, the iRIS will output to the terminal screen a
welcome message followed by the main menu. The following sections describe how to set up a terminal
connection and the menu options available while connected.

This description assumes a computer running the Microsoft® Windows® operating system is being used and
all examples relate to the standard Windows® terminal emulator application, HyperTerminal™. The iQuest
support programs iLink and iTerm also include an integral terminal emulator that also enables the
configuration to be viewed and altered.

5.1 Terminal Connection

The iRIS RS232 port is a DTE (Data Terminal Equipment) configured port and is identical in pin-out and
signal allocation to that of an IBM compatible PC’s RS232 port. Therefore the cable required is the same as
that for computer-to-computer communication.

To access the iRIS configuration terminal session, connect a full null-modem cable (as shown below)
between a communication port (e.g. COM1) on your computer and the RS232 port of the iRIS. The null
modem cable configuration has the three main signal pairs crossed over. These pairs are TXD/RXD,
RTS/CTS and DTR/DSR.

Computer iRIS

DB9F DB9F

1 CD CD 1
2 RXD TXD 3
3 TXD RXD 2
4 DTR DSR 6
5 SG SG 5
6 DSR DTR 4
7 RTS CTS 8
8 CTS RTS 7
9 RI RI 9

Figure 4 - RS232 Cable Pin Designations

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iRIS 150 V1.11 User Guide - 10

5.2 Terminal Cfg

Start Windows® HyperTerminal™ and create a new connection called “iRIS”. Set your terminal properties
as shown in the dialog boxes below.

If you have connected the iRIS to any port other than COM1, make an appropriate selection from the drop
down combo box.

The iRIS RS232 serial port is set by default to a speed of 38400 bps. Flow control is not required.

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