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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.
> Time Offset=
Option 5
This option prompts for a number to trim the iRIS real time clock to minimise drift dependent upon the
average ambient temperature of the environment in which it is installed. This value can be between –3 and
+3 and is a relative index that relates to a trimming value of +/- 0.0016% per increment. It is factory set to a
default value of –1 to provide minimal drift at typical room temperatures.
> Trim Factor (-3 to +3) =
4.3.15 Miscellaneous Menu (Level 2)
This menu covers the miscellaneous configuration items.
* Miscellaneous
0 Exit
1 Temperature [°C]
2 Initialize
3 WXT510 [No]
Option 1
This option defines the temperature scale in which the internal iRIS temperature will be displayed and
logged.
> Temperature Scale (0=°C, 1=°F)
Option 2
This option is used to initialise the unit. This is generally done just after installation as part of the
commissioning process to eliminate any test or residual data or totals. It resets the memory pointers to zero
and also resets all totalisers. To ensure this task is not accidentally invoked, a specific string must be typed
in order to execute the initialisation process
> Type 'init' to initialize the unit
=
Option 3
This option is used to enable support for the Vaisala WXT510 Weather Transmitter. This device is a SDI-12
instrument with particular features that require special handling by the iRIS. Refer to section 6.7 for more
information on connecting this instrument.
NOTE: This option is not available in the iRIS 220, as it does not have SDI-12 support.
> Vaisala WXT510 connected? (0:No 1:Yes)
=