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5-4 Operations during measuring mode
5-4-1 Display and lamps
The operating states are described by two indication devices.
1. LCD: Displays the gas concentration
2. LED lamps: Power lamp … power condition and trouble condition
WARNING lamp … 1st gas alarm condition
ALARM lamp … 2nd gas alarm condition
MAINTENANCE lamp … maintenance condition
For convenience, the indicators will be described as bellow to explain the indications
and operating condition.
LED symbols and its condition
○：
The LED is off
●：
The LED is on
◎：
The LED is flashing
Short name of the LED
PW: POWER AL1: WARNING AL2: ALARM MNT: MAINTENANCE
＊
NOTE
The symbols and locations of the LED and LCD are different from the real RI-2000R.
These are some examples of the operating condition.
ZERO
Zero will be displayed as on the right if the gas
concentration that has been observed is within the
zero suppression set value.
MINUS
If the concentration goes below -20ppm, the indicator
will display “-0 ppm”
WARNING
・
“-0 ppm” means the detector is not working properly. Please adjust the zero point.
N20 : 0ppm
N20 : -0ppm
●
○
○
○
PW AL1 AL2 MNT
●
○
○
○
PW AL1 AL2 MNT
