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Description
GB
Model 9010/9020 SIL
LEDS
Gas Information Tag
For specifying the gas type being monitored.
An individual gas name tag is available for each channel if Control Unit 9020 SIL is used.
Site Information Tag
For identifying the measuring site. It applies to both channels if Control Unit 9020 SIL is used.
2.2 Display
The control unit has a 4 digit back lit LCD for each measuring channel.
There is additional information available on the display besides the value of the measured gas
concentration:
Fig. 5 Display
Status LEDs
Red alarm status LEDs (C, W, A) for the optical indication of reaching the alarm
thresholds.
Yellow failure status LED (F) for the optical indication of a possible failure or
out-of-service condition.
Status LED information is available for both channels individually
if Control Unit 9020 SIL is used.
SYSTEM
FAILURE LED
The SYSTEM FAILURE LED lights up during system start and if an internal
system failure occurs.
The SYSTEM FAILURE LED information applies to both channels
if Control Unit 9020 SIL is used.
POWER LED
A green LED next to the keypad. It lights up if the device is turned on and it
blinks when entering an access code.
The POWER LED information applies to both channels if Control Unit 9020 SIL
is used.
1 Measured value
2 Measuring units
3 Important unit configuration settings (CAL, TIME OUT OFF, Alarm Delay C/W/A, Alarm Inhibit)
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