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RKI Instruments GX-2001 Canadian Version User Manual

Page 20

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20 • Operation

Model GX-2001 Operator’s Manual

Multiple Alarms

If more than one gas alarm is activated, the LCD shows the concentration
of the gas that triggered the last alarm. To see the concentration of the
other gasses, press the DISP button until the gas of interest is displayed.
When the DISP button is pressed, the displayed gas will stay displayed for
20 seconds, then the display will cycle.

For example, if concentrations of both CO and H

2

S in the monitoring

environment were to rise above their respective alarm points and CO was
the first to do so, the concentration of H

2

S would display on the LCD since

it was the most recent alarm event. Pressing the DISP button would display
the concentration of CO for 20 seconds, then HC for three seconds, etc.

STEL

Concentration of CO
or H

2

S rises above the

STEL alarm point
setting.

• Name of gas

displayed.

• Alarm light flashes

once per second.

• Back light turns on.
• STEL blinking.

Pulsing tone once
per second
Unit vibrates once
per second

Over Range

• Name of gas

displayed.

• Gas reading

replaced by blinking
brackets.

• Alarm light flashes.
• Back light turns on.

Pulsing tone once
per second
Unit vibrates once
per second

Low Battery Warning

• Battery icon

flashes.

None

Dead Battery Alarm

• Gas reading

replaced by FAIL.

• Battery icon

flashes.

Double Pulsing Tone
(two pulses in quick
succession)

Sensor Failure

• Name of gas

sensor displayed.

• Gas reading

replaced by FAIL.

Double Pulsing Tone
(two pulses in quick
succession)

Table 4: Alarm Types and Indications

Alarm Type

LCD Indications

Other Indications