iRIS 220 iRIS 320 User Guide For Software Version: V1.19 (Requires Firmware Version: V2.
Revision History Issue 1 Issue 2 Issue 3 Issue 4 Issue 5 Version 1.02 Version 1.05 Version 1.10 Version 1.12 Version 1.19 3rd November 2004 17th February 2005 21st July 2005 2nd September 2005 26th July 2006 Initial version Changes for V1.2 PCB / hardware revision 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.
1 - iRIS 220 / iRIS 320, V1.19 User Guide Contents 1 Introduction......................................................................................................................................... 4 1.1 About this Manual .......................................................................................................................... 4 1.2 Hardware (PCB) Revision.............................................................................................................. 4 1.3 Support........
iRIS 220 / iRIS 320, V1.19 User Guide - 2 4.3.11 Alarm Cfg (Level 5) ............................................................................................................. 35 4.3.12 Output Selection (Level 2)................................................................................................... 36 4.3.13 Output Cfg (Level 3) ............................................................................................................ 36 4.3.14 Date/Time Cfg (Level 2) ......................
3 - iRIS 220 / iRIS 320, V1.19 User Guide 10 Appendix A – Radio Using the RS232 Interface .......................................................................... 63 11 Appendix B – Voice Annunciation (iRIS 320V) ............................................................................ 64 12 Appendix C – SDI-12 (iRIS 320 / 320V only) ................................................................................. 65 13 Appendix D – Legacy PCB (Rev 1.1) Details.........................................
iRIS 220 / iRIS 320, V1.19 User Guide - 4 1 Introduction 1.1 About this Manual This manual is intended as a detailed guide for iRIS 200 / iRIS 320 installation, configuration and operation. For a brief operational overview, see the separate iRIS 220 Installation Guide or iRIS 320 Installation Guide. This manual is also available online in Adobe Acrobat® pdf format for registered users at www.iquest.co.
5 - iRIS 220 / iRIS 320, V1.19 User Guide 2 Overview 2.1 Introduction The iRIS 220 and iRIS 320 (iQuest Remote Information Source) are two related products that share similar electronic components and operate in much the same way. They have been designed as cost effective, low power, self contained information sources for use in a wide range of data gathering and logging applications. Both models achieve GPRS or CDMA network connectivity through the use of an integral wireless modem.
iRIS 220 / iRIS 320, V1.19 User Guide - 6 2.3 General Characteristics – iRIS 320 The iRIS 320 is supplied in an environmentally sealed (IP65) enclosure constructed from a special corrosionresistant aluminium alloy that is finished in a hard-anodised coating. This provides a very high degree of mechanical strength and EMI shielding, and enables completely stand-alone mounting in outdoor situations.
7 - iRIS 220 / iRIS 320, V1.19 User Guide 9 2 9 2 *SDI-12 Interface supports up to a maximum of 6 channels with the exception of the Vaisala WXT510 option that caters for the special case of seven parameters (see Section 6.7). Table 1- Feature Summary 2.
iRIS 220 / iRIS 320, V1.19 User Guide - 8 2.6 Technical Specifications – iRIS 220 Dimensions: 100mm x 172mm x 40mm (3.93in x 6.77in x 1.57in) (Excluding connectors) Mass: 380g (13.4oz) Power Supply: External regulated 12V dc power supply or rechargeable sealed lead-acid battery. Charger Source - External 15-30V dc supply. Supports a directly connected solar panel (no regulator required). Power Consumption: Less than 3mA @ 12V in idle mode and full power save mode selected.
9 - iRIS 220 / iRIS 320, V1.19 User Guide 2.7 Technical Specifications – iRIS 320 / iRIS 320V Dimensions: 117mm x 162mm x 67mm (4.60in x 6.37in x 2.64in) (Excluding glands and mounting plate) Mass: 1580g (3.48lb) Power Supply: Internal 12V @ 0.8A/Hr rechargeable sealed lead acid battery. Can also connect external regulated 12V dc power supply or rechargeable sealed lead-acid battery. Charger Supply: External 15-30Vdc supply. Supports a directly connected solar panel (no regulator).
iRIS 220 / iRIS 320, V1.19 User Guide - 10 2.8 Key Features 2.8.1 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 specialised configuration software installed on their computer specifically for this purpose.
11 - iRIS 220 / iRIS 320, V1.19 User Guide Partial Power Save With the power management mode set to partial save, the on-board LEDs are disabled but the internal wireless modem remains in the fully active state as with the no power save mode. Full Power Save When power management is set to full save mode, the internal LED’s are disabled and the internal wireless modem remains in a powered off state until a GPRS/CDMA-1X or CSD or SMS session is activated.
iRIS 220 / iRIS 320, V1.19 User Guide - 12 2.8.6 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), the array ID has an offset added to the sensor number that it is derived from.
13 - iRIS 220 / iRIS 320, V1.19 User Guide 3 Installation 3.1 Removing/Replacing the Electronic Assembly - iRIS 220 The electronic assembly is retained in the case by two end plates and held in place by the two connectors (I/O and RS232). Follow this procedure to gain access to the printed circuit board (PCB) to change the SIM card on GSM models (see Section 3.3) or to change the digital input links (see Section 3.4.5). To Remove: Undo the two mounting screws at the antenna end of the case (if fitted).
iRIS 220 / iRIS 320, V1.19 User Guide - 14 3.4 I/O Connector All I/O and power supply terminations are via 5mm (0.2”) screw terminals provided on a 16-way pluggable connector. The older (V1.1) PCB has a 12 way connector - see Appendix D – Legacy PCB (Rev 1.1) Details. The I/O connector is positioned on the right hand side of the iRIS 320 circuit board, directly above the white battery connector. On the iRIS 220, the connector protrudes through the top of the case.
15 - iRIS 220 / iRIS 320, V1.19 User Guide 3.4.2 Internal / External 12V Battery Supply For all models there are two terminals provided on the I/O connector designated +12V and GND (or –12V on old models). These can be used to power the unit from an external 12V battery or regulated dc supply. For the iRIS 320 / iRIS 320V models, the internal battery is effectively connected directly to these terminals. See Section 3.4.1 for warnings on connecting external power supplies to them. 3.4.
iRIS 220 / iRIS 320, V1.19 User Guide - 16 3.4.5 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 right hand side of the I/O connector. The top jumper is for Digital Input #2 and the bottom jumper is for Digital Input #1.
17 - iRIS 220 / iRIS 320, V1.19 User Guide 3.4.6 Digital Outputs The two digital outputs differ in their electrical configuration, although are identical in their logical operation. Digital Output 1 is open-drain pull-down and is capable of sinking up to 300mA at 30Vdc. An integral diode provides transient protection. Typically this output could be used to drive a relay or lamp powered by an auxiliary d.c supply (e.g. 12V).
iRIS 220 / iRIS 320, V1.19 User Guide - 18 3.5 Antenna Connection The iRIS can be supplied with an optional ground plane independent dipole antenna. • iRIS 220 antenna connects to a female BNC connector that protrudes through the end of the case. • iRIS 320 / iRIS 320V antenna is fitted through a compression gland in the bottom of the case. Internally, the antenna terminates at a female BNC connector on the circuit board.
19 - iRIS 220 / iRIS 320, V1.19 User Guide 3.7 Mounting – iRIS 320 / iRIS 320V An outline of the iRIS 320 mounting plate is shown below. The recommended mounting screws are M4 machine screws or Twinfast® wood screws. NOTE: It is very important that the three M5 Allen Key® screws on the front panel are tightened firmly after installation to maintain the IP65 rating of the enclosure. Figure 10 - iRIS 320 / iRIS 320V Mounting Diagram The mounting holes are on 130mm (5.11in) width by 82mm (3.
iRIS 220 / iRIS 320, V1.19 User Guide - 20 4 Configuration The iRIS configuration is achieved through the connection of a terminal to the internal RS232 serial port. Upon detection of a terminal connection via the DSR signal, the iRIS will output the main configuration menu to the terminal screen. The following sections describe how to set up a terminal connection and all the menu options available while connected.
21 - iRIS 220 / iRIS 320, V1.19 User Guide 4.2 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, 8 data bits, 1 stop bit and no parity. Flow control is not required.
iRIS 220 / iRIS 320, V1.19 User Guide - 22 Enable echo Set line pacing Because the iRIS does not echo received characters, it is necessary to enable “Echo typed characters locally” otherwise you will not see the characters that you type in at the terminal. Also, set the “Line delay” time to 500ms for pacing the input from text files if this method is used for setting up a unit from a common template.
23 - iRIS 220 / iRIS 320, V1.19 User Guide 4.3 Terminal Menus 4.3.1 Main Menu (Level 1) Throughout the terminal menus, there are • • Menu option 0 (zero) always returns you to the level above your current position. Entering “r” or “R” for a menu option will refresh the menu without selecting anything. This can be useful over a UDP terminal session where it is possible a packet may be lost and you are unsure which menu is currently selected.
iRIS 220 / iRIS 320, V1.19 User Guide - 24 4.3.2 Main Menu (Level 1) The first menu displayed is the Main Menu. From here, you can make the following choices: * 1 2 3 4 5 6 7 8 9 > iRIS 320V GPRS (AG1-0000 / F2.18 / S1.16) Site Name [My Site Name] Power [Full Save, Solar] Comms Sensors Outputs Date/Time [2 Apr 2006, 12:37:55, UTC +12hrs] PIN Code [0001] Miscellaneous Voice Option 1 - Site Name Select this option to enter a name for the site that will be displayed on the main title screen of the LCD.
25 - iRIS 220 / iRIS 320, V1.19 User Guide 4.3.3 Comms Cfg (Level 2) The comms configuration menu is the starting point for configuring all iRIS communication settings: * 0 1 2 3 4 5 6 7 8 9 > Comms Cfg Exit Force GPRS Online [Yes] Addr [1] Base Type [Polled] GPRS/CDMA-1X Cfg Phone List Callback [GPRS/CDMA] Radio Leader, Base Address [0ms,0] Modem Terminal SDI-12 Terminal Option 0 - Exit Select this option to return to the Main Menu.
iRIS 220 / iRIS 320, V1.19 User Guide - 26 Option 7 This option prompts you to enter the required radio lead-in time (in milliseconds) and the address of the base station when using an external data radio on the RS232 port. The leader time is very dependent on the type of data radio used and also the radio network (e.g: whether there are repeaters etc). The default is zero, as many data radios apply lead-in time automatically. The base address is also normally set to zero.
27 - iRIS 220 / iRIS 320, V1.19 User Guide 4.3.4 GPRS/CDMA-1X Cfg (Level 3) The GPRS/CDMA-1X set-up menu is for configuring the specific GPRS/CDMA-1X connection settings. * 0 1 2 3 4 5 6 7 8 9 > GPRS/CDMA-1X Cfg Exit APN [iquest.co.nz] (for GPRS) LogIn [,] Skt A IP [0.0.0.0] Skt A Port [7778] Skt B IP [0.0.0.0] Skt B Port [7777] IP Acceptance Schedule Network Info - Reserved – (for CDMA) Option 0 Select this option to return to the Comms Cfg menu.
iRIS 220 / iRIS 320, V1.19 User Guide - 28 Option 5 When this option is selected you will be prompted to enter an IP address to use for socket B. Socket B is the socket that is used by the iRIS for System DO (binary) communication. This is the destination IP address used for unsolicited binary calls. > Skt B IP= Option 6 When this option is selected you will be prompted to enter a port number to use for socket B.
29 - iRIS 220 / iRIS 320, V1.19 User Guide 4.3.5 Phone List (Level 3) The Phone List menu is the place to configure your primary and secondary phone numbers for SMS text messaging or CSD dial-up initiated by the iRIS. These numbers are only applicable when the Callback mode is set to 1 (SMS) or 2 (CSD). See the description of the callback mode, option 6 in Section 4.3.3.
iRIS 220 / iRIS 320, V1.19 User Guide - 30 4.3.7 GPRS/CDMA-1X Schedule Cfg (Level 4) The schedule set-up menu is provided to configure the GPRS/CDMA-1X communication schedule. NOTE: If the Callback mode (Option 6 in Section 4.3.3) is not set to 1 (GPRS/CDMA), then this schedule has no effect.
31 - iRIS 220 / iRIS 320, V1.19 User Guide Option 5 The option allows an alternative trigger for automatic sending of data when the base type is set to “Auto Send”. (See option 3 of section 4.3.3 for details on the base type). By setting a non-zero value, the iRIS will automatically connect and send its data when at least x samples have been logged. If this setting is zero, the schedule is the only method of triggering automatic data reporting.
iRIS 220 / iRIS 320, V1.19 User Guide - 32 4.3.9 Sensor Cfg (Level 3) The Sensor Cfg menu is used to configure each of the six main virtual sensors. Internal Sensors (7-9) provide a smaller sub-set of these settings as most of the parameters are known and fixed. Refer to the datalogging features (Section 2.8.5) of this manual for a discussion on datalogging and virtual sensors. This menu option also shows the current scaled measurement value for the selected sensor. * Sensor 1 Cfg (Now: 1.
33 - iRIS 220 / iRIS 320, V1.19 User Guide Option 2 When this option is selected you will be prompted to enter a name for the sensor (maximum 10 characters). This name will be displayed on the iRIS 320 LCD sensor screens. > Name (max 10)= Option 3 When this option is selected you will be prompted to enter a number representing the processing mode. > Mode (0..
iRIS 220 / iRIS 320, V1.19 User Guide - 34 Option 4 When this option is selected you will be prompted to enter a scaling multiplier. This multiplier is used to convert the raw input into engineering units. > Multiplier= Option 5 When this option is selected you will be prompted to enter a scaling offset. This offset is added to the scaled engineering value.
35 - iRIS 220 / iRIS 320, V1.19 User Guide 4.3.10 Alarm Selection (Level 4) Use the Alarm Selection menu to decide which alarm you want to configure. You can see at a glance from this menu which alarms are enabled. * 0 1 2 > Alarm Selection Exit Alarm #1 (Enabled) Alarm #2 (Disabled) Option 0 Select this option to return to the Sensor Cfg menu. Option 1 Select this option to view the set-up menu for Alarm 1. Option 2 Select this option to view the set-up menu for Alarm 2. 4.3.
iRIS 220 / iRIS 320, V1.19 User Guide - 36 Option 4 When this option is selected you will be prompted to enter a time in seconds to delay alarm activation. This can be used to implement hysteresis for Analog data sources. If the data source is one of the internal counters then this time is used to totalise individual sample values. If the total over the given alarm duration is above the trigger level then an alarm is generated. Typically this feature is used for rainfall alarms. > Duration (min)= 4.3.
37 - iRIS 220 / iRIS 320, V1.19 User Guide Option 2 When this option is selected you will be prompted to select the switching polarity of the output. This relates to the output’s electrical state with respect to its logical on/off state. If the polarity setting is 0 (normal), the output will actively pull down to 0V when the output logical state is on and be high impedance (open-circuit) when the output is logically off.
iRIS 220 / iRIS 320, V1.19 User Guide - 38 Typical Scheduled Output Example A ground water site using an iRIS 320 is required to log a sample every hour that is obtained from a pressure transducer whose power supply is controlled from the digital output, DO1 via a transistor switch. The transducer needs to be powered up for one minute prior to the measurement being taken and logged. The settings required for DO1 to achieve this are shown below.
39 - iRIS 220 / iRIS 320, V1.19 User Guide Option 4 When this option is selected you will be prompted to enter the offset of the iRIS’ local time with respect to UTC (GMT). This is used for international time correction if the data is forwarded to the iQuest Global Data Network. For example, enter +12 for NZST or –8 for PST and so on.
iRIS 220 / iRIS 320, V1.19 User Guide - 40 4.3.16 Voice Menu (Level 2) This menu, which is only available on the iRIS 320V, is provided to configure the voice annunciation feature. * 0 1 2 > Voice Cfg Exit Mode [Cellular] Sensors Option 1 This option selects whether the voice access is via the cellular modem or via a special PSTN landline adaptor. Contact iQuest for details on this feature.
41 - iRIS 220 / iRIS 320, V1.19 User Guide 5 Operation 5.1 LED Indicators The iRIS has several LED indicators. The main status LED is visible from the outside of the enclosure on both models, where as the eight diagnostic LEDs are internal. 5.1.1 Status LED The status LED is a tri-colour device that is used to indicate the unit status. The iRIS 220 has no LCD, this indicator is important as it is the only means of determining the iRIS status.
iRIS 220 / iRIS 320, V1.19 User Guide - 42 5.2 LCD & Keypad (iRIS 320 only) 5.2.1 LCD Operation The iRIS 320 LCD is controlled to optimise power consumption. If the display has powered down, the unit is in a lower power mode and can be woken by pressing any key on the keypad. After a certain period of no key presses, the display and backlight will power down again, although other functions continue normally. If the user was logged on (PIN entered), they will be logged off.
43 - iRIS 220 / iRIS 320, V1.19 User Guide 5.2.4 Display Menu Structure The actual LCD screens that are available will depend upon the level of access that has been enabled (no access, not logged-in, or logged-in). The screens available in each mode are shown below: 1. Minimum Access (PIN code = 0, Log-in is not possible) Level 0 Level 1 Status 1 Status 2 Status 3 Status 4 Level 2 Level 3 Level 4 Level 5 Level6 Level 4 Level 5 Level6 Totalisers [1..2] 2.
iRIS 220 / iRIS 320, V1.19 User Guide - 44 5.2.5 Primary LCD Display Screens Log In Screen (Level 0, when not logged in) The Log-In screen is a special screen that is allocated level 0. It is used to enter a PIN number and then enable access to restricted screens. It is reached by pressing the Alt and Enter keys simultaneously from any of the three System Status screens when the unit is not logged in. LOG IN Pin No.
45 - iRIS 220 / iRIS 320, V1.19 User Guide System Status 3 Screen (Level 1) The System Status 3 screen is always available, no matter what level of access has been selected. The information shown on this screen includes the voltage being measured at the AI1 – AI4 terminals in millivolts. These values are useful for checking input signals and also for the calibration process.
iRIS 220 / iRIS 320, V1.19 User Guide - 46 Sensor Menu Screen (Level 4) The Sensor Menu screen is used to select sensor options. SENSOR MENU >Settings Calibration Data +/Enter Alt Enter Move down/up through menu Select menu item Move up to Sensor Status screen Sensor Settings Screen 1/5 - Process (Level 5) The Sensor Process screen shows the processing mode used to convert the incoming raw data to engineering units.
47 - iRIS 220 / iRIS 320, V1.19 User Guide Sensor Settings Screen 5/5 - Alarm 2 (Level 5) Sensor Alarm screen 2 shows the same information as Alarm screen 1, but for Alarm #2. ALARM#2 5/5 / 6.1000 \ 6.2500 ∆(min) 00000 +/Alt Enter Move forwards/backwards through sensor setting screens. Move up to Sensor Status screen Sensor Calibration Screen (Level 5) The Sensor Calibration screen is used for entering a calibration offset. The top value on the display is the current sensor reading.
iRIS 220 / iRIS 320, V1.19 User Guide - 48 Total 2 Screen 2/2 (Level 3) TOTAL 2/2 Yst 76.5 Day 26.4 Run 11276.3 +/Enter Alt Enter Move forwards/backwards through sensor total screens Drill down to Total Reset screen Move up to Main Menu screen Reset Total Screen (Level 4) The Total Reset screen is used to reset the daily and running totals.
49 - iRIS 220 / iRIS 320, V1.19 User Guide Comms Setting Screen 2/8 – APN/Local IP (Level 5) The GPRS APN screen displays the name of the access point used to connect to the GPRS network. It also displays the local IP address allocated to the SIM card inserted in the unit. NOTE: This screen does not display an APN on CDMA versions, but will still display the iRIS’s local IP address that has been allocated by the network. GPRS/CDMA 2/8 APN/LOCAL IP iquest.co.nz 0.0.0.
iRIS 220 / iRIS 320, V1.19 User Guide - 50 Comms Setting Screen 6/8 - Schedule 2 (Level 5) This screen displays the duration that the unit will stay connected to the GPRS/CDMA-1X network and the frequency at which connections will be made during the allowable time range. Refer to the Comms Schedule (section 4.3.3) for details on these settings affect the communication availability. COMMS 6/8 SCHEDULE Dur 120sec Frq 60min +/Alt Enter Move forwards/backwards through communication setting screens.
51 - iRIS 220 / iRIS 320, V1.19 User Guide Comms Enable Screen (Level 5) The Comms Enable screen is used to enable/disable the establishment of a GPRS/CDMA-1X session. This option will force a connection over the scheduler if configured.
iRIS 220 / iRIS 320, V1.19 User Guide - 52 5.4 General Hints If mounting the iRIS 320 in an outdoor situation, try to ensure that the LCD is facing away from direct sunlight. This will help to enhance the readability of the display. If the unit is not to be used for some time, disconnect the internal battery to prevent it becoming discharged. Always check the time and date when commissioning the unit.
53 - iRIS 220 / iRIS 320, V1.19 User Guide 6 Sensor Connection Examples 6.1 Connecting a Flow Meter or Rain Gauge One of the most common uses for the iRIS is logging data from pulse sources such as flow meters or rain gauges. Connecting such devices to the iRIS is very simple – wire the switch between the appropriate digital input (DI1 or DI2) and the digital ground (DGND) terminal.
iRIS 220 / iRIS 320, V1.19 User Guide - 54 6.2 Connecting a 0-5V Pressure Transducer Connecting a standard sensor (such as a pressure transducer that provides a 0-5V signal) to an iRIS is relatively straightforward. The sensor can be powered from the iRIS 320’s 12V supply and optionally controlled by a digital output to save power.
55 - iRIS 220 / iRIS 320, V1.19 User Guide 6.3 Connecting a 2-Wire Loop-Powered 4-20mA Sensor The iRIS 220 /iRIS 320 also supports the connection of many types of industry standard 4-20mA current loop instruments such as ultrasonic or radar level sensors. A very common configuration used with these devices is known as two-wire or loop-powered mode. This requires only two wires to the sensor and the 4-20mA loop current provides power for the sensor as well as being the proportional Analog sensor signal.
iRIS 220 / iRIS 320, V1.19 User Guide - 56 6.4 Connecting an Up/Down Water Level Instrument A relatively common type of digital water level instrument is one that provides two pulse outputs. One output generates a pulse for each increment and the other for each decrement in level. The iRIS maintains a record of these steps and therefore the relative level. These instruments normally require a 12V supply and this is readily obtained from the iRIS. A supplementary 12V battery can be connected if desired.
57 - iRIS 220 / iRIS 320, V1.19 User Guide 6.5 Connecting Analogue Wind Instruments A relatively common type of digital water level instrument is one that provides two pulse outputs. One output generates a pulse for each increment and the other for each decrement in level. The iRIS maintains a record of these steps and therefore the relative level. These instruments normally require a 12V supply and this is readily obtained from the iRIS. A supplementary 12V battery can be connected if desired.
iRIS 220 / iRIS 320, V1.19 User Guide - 58 6.6 Connecting SDI-12 Instruments. (iRIS 320 / iRIS 320V only) SDI-12 instruments should be connected as shown in the diagram below. See Section 4.3.3 for information on using the SDI-12 terminal mode to access SDI-12 instruments directly. Also, refer to Appendix C – SDI-12 (iRIS 320 / 320V only) for detail on the SDI-12 specification. NOTE: The original (PCB revision 1.
59 - iRIS 220 / iRIS 320, V1.19 User Guide 6.7 Connecting a Vaisala WXT510 Weather Transmitter (iRIS 320 only) The Vaisala WXT510 Weather Transmitter is a compact, well-featured instrument that is ideal for implementing small weather stations. The iRIS 320 / iRIS 320V models support the connection of these units using the SDI-12 interface. NOTE: Although the standard iRIS software only supports six sensors, it allows a special exception when using the WXT510, which provides seven parameters.
iRIS 220 / iRIS 320, V1.19 User Guide - 60 7 Analogue Input Scaling This section explains the recommended procedure to use when scaling an analogue input (voltage or current). It makes use of the scaling calculator provided in the iLink utility. However, the calculation can be done manually using this formula. NOTE: mV = Input mV, EU = Engineering Units (scaled output e.g metres) Multiplier = (Maximum EU – Minimum EU) / (Maximum mV – Minimum mV) Offset = Maximum EU - (Multiplier * Maximum mV) 7.
61 - iRIS 220 / iRIS 320, V1.19 User Guide 8 Troubleshooting This section offers possible answers to common installation and/or configuration issues. 8.1 IRIS will not start when battery is first connected Check that the battery voltage is at least 12.2V. The internal battery management hardware is designed to shut the unit down when the battery becomes discharged to a certain point. It will not restart unless the battery is deemed to have sufficient capacity for normal operation. 8.
iRIS 220 / iRIS 320, V1.19 User Guide - 62 9 User Notes 62 iQuest (NZ) Ltd - PO Box 15169, Hamilton, New Zealand Tel: +64 7 857-0810 Fax: +64 7 857-0811 Email: iquest@iquest.co.
63 - iRIS 220 / iRIS 320, V1.19 User Guide 10 Appendix A – Radio Using the RS232 Interface The iRIS may be used to communicate via external radios. For legacy radios requiring an audio interface, a FSK modem such as the DS-IRM intelligent radio modem can be used. For radios fitted with an integral modem, the iRIS connects directly to the radio’s RS232 port. The diagram below shows the typical cable required to achieve either of these two modes of operation.
iRIS 220 / iRIS 320, V1.19 User Guide - 64 11 Appendix B – Voice Annunciation (iRIS 320V) The iRIS 320 can be supplied with a voice annunciation feature. In this case it is then allocated the designation, iRIS 320V. To maintain high quality, natural local sounding audio, including support for almost any language, the iRIS 320V uses special PCM (Pulse Code Modulation) sound files. These are stored in the unit in a dedicated flash memory device that has a total capacity of 2Mb.
65 - iRIS 220 / iRIS 320, V1.19 User Guide 12 Appendix C – SDI-12 (iRIS 320 / 320V only) What is SDI-12? SDI-12 stands for Serial Digital Interface at 1200 bps. It is a standard to interface battery powered data recorders with microprocessor-based sensors designed for environmental data acquisition (EDA). EDA is accomplished by means of a sensor, or sensors, and a data recorder, which collects and saves the data.
iRIS 220 / iRIS 320, V1.19 User Guide - 66 SDI-12 Electrical Interface The SDI-12 electrical interface uses the SDI-12 bus to transmit serial data between SDI-12 data recorders and sensors. The SDI-12 bus is the cable that connects multiple SDI-12 devices. This is a cable with three conductors: 1) A serial data line 2) A ground line 3) A 12-volt line In the following specifications, all values not indicating specific limits have an allowable tolerance of ±10% of the value.
67 - iRIS 220 / iRIS 320, V1.19 User Guide 13 Appendix D – Legacy PCB (Rev 1.1) Details 13.1 I/O Connector All I/O and power supply terminations on the V1.1 PCB are via 2.5mm (0.1”) screw terminals provided on a 12-way pluggable connector. This connector is positioned on the right hand side of the iRIS 320 circuit board, directly above the white battery connector. On the iRIS 220, the connector protrudes through the top of the case. The function of each I/O termination is shown in the diagram below.
iRIS 220 / iRIS 320, V1.19 User Guide - 68 13.3 SDI-12 Interface The original (PCB revision 1.1) iRIS 320 / iRIS 320V models supported the connection of SDI-12 instruments via a psuedo SDI-12 interface. This requires the installation of a small interface adaptor that enables the iRIS to use two of its digital I/O (DI2 and DO2) to provide the SDI-12 communication. The photograph below shows how the SDI-12 interface adaptor should be installed.
69 - iRIS 220 / iRIS 320, V1.19 User Guide 13.5 Transistor Switch On the older iRIS PCB, both digital outputs operate in an open-drain, pull-down mode. This configuration is normally used to control an external relay or similar device and it offers the advantage of allowing a wide range of relay supply voltages (up to 30V), which do not necessarily have to relate to the supply voltage of the iRIS itself. However, another common use for a digital output is to control a sensor such as a pressure transducer.
iRIS 220 / iRIS 320, V1.19 User Guide - 70 14 Appendix E – iRIS 320 Enclosure Material Spec The iRIS 320 enclosure is milled from two solid blocks of 5083 aluminium alloy, which is then hard anodised. This is the highest strength non heat-treatable alloy in general commercial use, possessing very high welded strength and excellent corrosion resistance. It is used for many types of welded assemblies, such as tanks, dump trucks, cryogenic applications and ship superstructures.
71 - iRIS 220 / iRIS 320, V1.19 User Guide 15 Appendix F - Network Settings for iQuest APN or iQuest Global Data Network iQuest APN APN: iQuest Host IP Address: Default Binary Port Default ASCII Port iquest.co.nz 192.168.1.10 7777 7778 iQuest Global Data Network Network Static Host IP: Primary Listening Ports: 203.190.210.
