Xylem SDI-12 Data Logger iRIS 220, iRIS 320, iRIS 350, iRIS 150, iRIS 300 - Manual (Page 75)

69 iQuest (NZ) Ltd - PO Box 15169, Hamilton, New Zealand Tel: +64 7 857-0810 Fax: +64 7 857-0811 Email: [email protected]
10 Troubleshooting
This section offers possible answers to common installation and/or configuration issues.
10.1 Can’t connect to the iRIS via the RS232 port
Check that the PC application (iLink or terminal program such as HyperTerminal®) is set for the correct
comms port and speed (38400bps). Also check that the iRIS is not in RS232 Only Telemetry mode. This is
indicated by a solid black house icon with an ‘R’ symbol in it being displayed on the LCD. If it is in this
telemetry mode, switch back to normal mode by pressing any key or if currently logged in, then log out by
pressing Alt-Enter from a top level screen. Sees Section 9.2 for details on using RS232 Telemetry mode.
10.2 iRIS will not start when the 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.
10.3 Pulse lost when iRIS connected to other equipment
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 presents a relatively
high impedance to the circuit.
However, in the event that connecting an iRIS does cause pulse failure, try 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). See Section 3.5.5 for details on the digital inputs.
10.4 Unable to connect to a GPRS or 3G network
SIM Card: Check the SIM card is active and enabled for IP connectivity service.
APN: The unit must be configured for a valid APN that must also match the SIM account APN.
Signal: The iRIS will not attempt to connect if the RSSI is 0 or 99. Use a higher gain antenna if the
signal strength is marginal.
IP Settings: The iRIS will not attempt to connect unless both Socket A and Socket B settings are defined
for GPRS models. (IP addresses and port numbers are non-zero). If Socket A is not used
(as in 3G), set it to the same values as Socket B.
See Appendix I for a list of the network settings for the iQuest APN or iQuest Global Data Network.
10.5 Unable to connect to a CDMA network
Account: Check the account is active and the CDMA data service is enabled.
Signal: The iRIS will not attempt to connect if the RSSI is 0 or 99. Use a higher gain antenna if the
signal strength is marginal.
IP Settings: The iRIS will not attempt to connect unless Socket B settings are defined. (IP address and
port must both be non-zero). If Socket A is not used, set it to the same values as Socket B.
See Appendix I for a list of the network settings for the iQuest APN or iQuest Global Data Network.
10.6 iRIS will not respond to SMS requests
Account: Check the account is active and the SMS service is enabled.
Power Mode: If full power save is selected, the wireless modem is shut down.
Connection:
If the iRIS is connected on an IP (GPRS or CDMA-1X) session, the SMS feature is
unavailable. Use a scheduled IP connection to minimise the time that SMS is unavailable.
Voice Call: If an iRIS 3x0V is connected on a voice call, the SMS feature is unavailable.