Xylem SDI-12 Data Logger iRIS 220, iRIS 320, iRIS 350, iRIS 150, iRIS 300 - Manual (Page 78)

iRIS Datalogger User Guide V1.50
72 iQuest (NZ) Ltd - PO Box 15169, Hamilton, New Zealand Tel: +64 7 857-0810 Fax: +64 7 857-0811 Email: [email protected]
11.2 Technical Specifications – iRIS 350 / iRIS 350V
Dimensions: 117mm x 162mm x 67mm (4.60in x 6.37in x 2.64in)
(Excluding glands and mounting plate)
Mass: 1450g (3.19lb) with gel-cell battery fitted.
Power Supply: Internal 12V @ 0.8A/Hr rechargeable sealed lead acid battery. Can also connect an
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).
Power Consumption:
Less than 3mA @ 12V in idle mode. Actual current consumption is dependent on
power management mode, wireless modem state and I/O configuration.
Comms Interfaces: 1x RS232 DB9, 38,400 bps, DTE configuration.
1x Integral multi-band GSM/GPRS modem or
1x Integral HSDPA (3G®) modem
Digital I/O: 4 x Digital Inputs/Outputs. Each channel configurable as either an input or output.
(Initial software fixes these as two inputs and two outputs – iRIS 320 emulation)
Digital Input Mode:
- 30Vdc maximum input, switch to 0Vdc to activate.
- Link selectable for either mechanical (<20Hz) or electronic (<5kHz) switching.
Digital Output Mode:
When set for output, the channel can be either:
- Switched 12V out (max 100mA) or
- Open-drain pull-down (max 100mA @ 30V)
Analog I/O:
4 x 16 bit uni-polar analog inputs. Range 0 – 5.000V. Input impedance 98kΩ.
Referenced to 0V common. Internal measurements available for monitoring are:
 Battery Voltage
 Supply Voltage
 Internal Temperature (C or F)
 Received Signal Strength (RSSI or RSCP)
 Link selectable for either voltage (0-5V) or current (0-20mA) mode. Integral
current mode resistor value 100R.
SDI-12 Interface: SDI-12 hardware interface that fully complies with the SDI-12 electrical standard.
Software support to SDI-12 standard 1.2.
Logging Memory:
Non-volatile 8MB flash storage of 1,085,476 time/date stamped data points. Circular
buffer mode (overwrites oldest data when memory full).
A typical site with 2 parameters logged every 15 minutes plus battery voltage logged
hourly will give 3.3 years of storage before data overwrite occurs.
Audio Memory:
iRIS 350V only. Non-volatile 8MB flash storage of PCM audio files. Total
cumulative playtime 12 minutes at 11.025kHz sampling rate.
Clock/Calendar:
Non-volatile with user replaceable lithium back-up battery module. Y2K compliant
with leap year recognition. Accurate to +/-20 secs month, trimmable via a
configuration register.
Mounting:
4 x M4 (3/16”) blind mounting holes in rear of case.
4 x 16mm (¾”) compression glands for power supply and I/O cabling access.
Environmental:
Storage Temperature: -20C - +85C. (-4F - +185F)
Operating Temperature: -10C - +70C. (14F - +158F)
Enclosure sealed to IP66 with gasket and glands.