Blackline Safety G7 BRIDGE User manual

G7
Gas Detection Guide

GAS DETECTION
ALARMS & ALERTS
G7 will automatically zero on start-up. It will monitor
your safety and notify you of gas exposure.
Gas detection features will notify you with either
a yellow warning alarm or a red alert.
Yellow warning alarms are between you and
your G7.
Red alerts are immediately sent to monitoring
personnel.
All settings are customizable within Blackline Live.
Speak to your safety supervisor to learn about
how your G7 gas features are congured.

Yellow
Warning
Alarm
Low warning alarm for gas
If a sensor detects a low concentration
gas level.
Under limit
If a sensor’s baseline shifts and is unable to
obtain an accurate gas reading.
Sensor error
If a sensor stops working for any reason.
Calibration and bump test
If a sensor is due for a calibration or
bump test.
Rapid blinking

Red
Alerts
High alert for gas
If a sensor detects gas levels above the
maximum gas concentration.
STEL (short term exposure limit)
If a sensor detects you have reached the
short-term exposure limit congured.
TWA (time weighted average)
If you have reached the average gas amount of
repeated exposure in an eight-hour period.
OL (over limit)
If an excessive amount of gas is detected and
sensors cannot provide an accurate gas reading.
Rapid blinking

0124/R3/2017-07-17
Visit support.BlacklineSafety.com to download
the technical user manual with descriptions of
how to use and congure your device features
and specications.
CUSTOMER CARE
For technical support, please contact our
Customer Care team.
North America (24 hours)
Toll Free: 1-877-869-7212
[e-mail]
United Kingdom (8am-5pm GMT)
[phone]
[e-mail]
International (24 hours)
[phone]
[e-mail]

CALIBRATION
Gas sensors periodically need to be calibrated
by applying a known concentration of gas for
a set amount of time. This procedure ensures
the gas sensor can accurately detect gas levels
throughout its operating life. The calibration
schedule depends on your company’s safety
policy. Blackline recommends not exceeding
180 days without a calibration.

BUMP TEST
It is safe practice to regularly test alarm
indicators (light, sound and vibration) by
applying enough gas to conrm the sensors
will trigger an alarm when gas is detected.
The bump test schedule depends on your
company’s safety policy.
ZERO SENSORS
If G7 is not reading zero and you know you are
in an atmosphere with no gas, your gas sensor
readings may have shifted. If this happens you
can zero your sensors to reset the baseline.

Tubing
Tubing
Single-gas
calibration cap
Quad-gas
calibration cap

CHANGING CARTRIDGES
1. Power o G7
2. Using a Torx T8 screwdriver, remove the
screws on each side of the device
3. Pull up on the cartridge
4. Slide a new cartridge onto G7, ensuring
the cartridge clicks into place
5. Replace screws into each side
NOTE: Do not use electric screwdrivers for
changing cartridges.

CARTRIDGE REPLACEMENT
PROGRAM
If you have an uninterrupted gas service plan,
Blackline will replace expired cartridges for
you free of charge.
To inquire about or request
new cartridges, please contact our Customer
Care team or your distributor.