Xylem iRIS 150 GPRS DATALOGGERS - Manual (Page 28)

iRIS 150 V1.11 User Guide - 22
22 iQuest (NZ) Ltd - PO Box 15169, Hamilton, New Zealand Tel: +64 7 857-0810 Fax: +64 7 857-0811 Email: [email protected]
6 Operation
6.1 LED Status Indicators
The iRIS has one blue status LED and 4 red status LED’s. These are visible through the front panel label
and are located to the right of the LCD:
Figure 6 – Status LED Positions
6.1.1 Blue Status LED
The blue status LED is always enabled, regardless of whether the unit is running on external power or its
internal battery. It is used to indicate keypad presses and sampling scans:
•
If the LCD is active, the blue LED will flash every time the keypad is pressed.
•
If the unit is in Timed scanning mode, the blue LED will flash every time a scan is performed.
6.1.2 Red I/O Status LEDs
The iRIS has 3 red LED indicators that are linked to the digital I/O and can be useful for diagnostic purposes.
The LED’s are active when the corresponding input or output is active (pulled low).
6.1.3 Red Comms Status LED
The iRIS has a further red LED indicator that provides general communication status. It will flash whenever
an RS232 or SDI-12 data packet is transmitted.
Note that the red I/O and comms LED indicators are only active if the unit is running on external
power.
LCD
Display
KeyPad
Digital In 1
Digital In 2
Digital Out
Unit Status
Comms