Detector pits against gases
September 1st 2009 Crowcon has supplied 60+
ATEX-approved Tetra
portable gas detectors to
Avery Weigh-Tronix for
detecting dangerous gases in
pit-mounted weighbridges.
Many Avery weighbridges
are mounted over enclosed
pits containing load cells,
which require regular
maintenance. This involves a
technician physically entering
the pit.
Confined space regulations
mean technicians cannot
enter a pit without first
testing the atmosphere, and
then continuously
monitoring it while at work.
Rather than pass this
responsibility to its clients,
Avery Weigh-Tronix decided
to equip all its technicians
with Tetra detectors to
comply with the regulations.
Potentially dangerous gas
hazards in the pits come
from a variety of sources and
include diesel spillage, rotting
organic matter, exhaust
fumes, landfill gases and
process emissions.
Simple to use, Crowcon's
Tetra multi-gas detectors can
monitor a combination of
toxic gases, flammable gases
and oxygen at the same time.
A single button controls all
functions and a backlit
display gives simultaneous
viewing of all gas readings,
alarm conditions and battery
life at a glance.
If a gas hazard is detected,
the Tetra instantly alerts the
technician by emitting a loud
94 dBA alarm, producing an
extremely bright red/blue
flashing light, and by
vibrating. Alarm tones are
adjustable to ensure easy
discrimination from
surrounding noise. More articles from Crowcon Detection Instruments Ltd: | 
