User's Manual

G7 TECHNICAL USER MANUAL || 21
UNDER LIMIT
When does G7 trigger an under limit yellow warning alarm?
If a gas sensor’s baseline shifts, it’s reading will shift accordingly and become
unreliable. When this happens, the presence of gas can still be measured, but cannot
be converted into an accurate reading. G7 will inform you of such an event with
a yellow warning alarm. A calibration will be required to ensure the sensors are
accurately detecting gas levels. If you are unable to perform a calibration and are in a
clean atmosphere, you can zero your sensors to reset the baseline.
SENSOR ERROR
When does G7 trigger a sensor error yellow warning alarm?
If a gas sensor stops working for any reason, G7 will inform you with a yellow warning
alarm. An X on your LCD screen will indicate which sensor or sensors are generating the
error message. Power o and restart your G7. If the sensor error warning persists, perform
a calibration. If this does not correct the problem, you will need to replace your cartridge.
CALIBRATION
When does G7 trigger a calibration yellow warning alarm?
When gas sensors are due for a calibration, G7 will inform you with a yellow warning alarm.
BUMP TEST
When does G7 trigger a bump test yellow warning alarm?
When gas sensors are due for a bump test, G7 will inform you with a yellow warning alarm.
PUMP BLOCK
When does G7 trigger a pump block yellow warning alarm?
If your pump inlet is blocked, G7 will inform you with a yellow warning alarm.
Read your G7 screen. Press and hold the
up and down arrow buttons at the same
time to let your G7 know you have read
the message.
Yellow warning alarms are between
you and G7, and will not notify
monitoring personnel if you are
using real-time features.
What do I do in the case of a yellow warning alarm?