Teledyne 2240 – Portable Handheld Hydrogen Leak Detector, 3rd generation (updated 1/31/11) - Manual (Page 6)

Handheld Hydrogen Leak Detector Model 2240
Teledyne Analytical Instruments Page 6 of 30
Hydrogen is flammable at 4% in air. Take indications
seriously and be prepared to take action. In the event of
detection of 4% or higher of a hydrogen gas concentration
there is a high probability of a hazard to safety. Inform
local emergency response personnel immediately.
Safety Messages
Your safety and the safety of others is very important. We
have provided many important safety messages in this manual.
Please read these messages carefully.
A safety message alerts you to potential hazards that could
hurt you or others. Each safety message is associated with a
safety alert symbol. These symbols are found in the manual and
inside the instrument. The definition of these symbols is described
below:
GENERAL WARNING/CAUTION: Refer to the
instructions for details on the specific danger. These
cautions warn of specific procedures which if not
followed could cause bodily Injury and/or damage the
instrument.
CAUTION: H OT S URFACE W ARNING : This warning is
specific to heated components within the instrument.
Failure to heed the warning could result in serious burns
to skin and underlying tissue.
WARNING: E LECTRICAL S HOCK H AZARD : Dangerous
voltages appear within this instrument. This warning is
specific to an electrical hazard existing at or nearby the
component or procedure under discussion. Failure to
heed this warning could result in injury and/or death
from electrocution.
Technician Symbol: All operations marked with this
symbol are to be performed by qualified maintenance
personnel only.
No
Symbol