1 Health and safety 
266 MODBUS® multivariable transmitter User manual 2105216 Rev. AB | 1 
1  Health and safety 
  General information and notes 
Read these instructions carefully prior to installation and commissioning. For reasons of clarity, these instructions do not contain 
all details about every type or version of the product, and therefore, do not take into account every conceivable assembly, 
operating, or maintenance scenario. For further information, or if specific problems arise which are not addressed in the 
instructions, please ask the manufacturer. The content of these instructions is neither part of, nor provided for changing a 
previous or existing agreement, promise, or legal relationship. All obligations to ABB result from the respective sales contract, 
which also contains the full and solely valid warranty clauses. These are neither limited to, nor extended by the content of these 
instructions. 
Observe warning signs on the packaging and on the device. 
  Safety, warning, and note symbols 
DANGER – Serious damage to health / risk to life. This symbol, in conjunction with the signal word 
"DANGER", indicates an imminent danger. Failure to observe this safety information will result in death or severe 
injury. The text may state the hazard, how to avoid the hazard, and what the result would be if not followed. 
DANGER – Serious damage to health / risk to life. This symbol, in conjunction with the signal word 
"DANGER", indicates an imminent electrical hazard. Failure to observe this safety information will result in death 
or severe injury. The text may state the hazard, how to avoid the hazard, and what the result would be if not 
followed. 
WARNING – Bodily injury. This symbol, in conjunction with the signal word "WARNING", indicates a potentially 
dangerous situation. Failure to observe this safety information may result in severe injury. The text may state the 
hazard, how to avoid the hazard, and what the result would be if not followed. 
WARNING – Bodily injury. This symbol, in conjunction with the signal word "WARNING", indicates a potential 
electrical hazard. Failure to observe this safety information may result in death or severe injury. The text may 
state the hazard, how to avoid the hazard, and what the result would be if not followed. 
CAUTION – Minor injuries. This symbol, in conjunction with the signal word "CAUTION", indicates a potentially 
dangerous situation. Failure to observe this safety information may result in minor or moderate injury.  
NOTICE – Property damage. This symbol indicates a potentially damaging situation. Failure to observe this 
safety information may result in damage to or destruction of the product and other system components. 
IMPORTANT NOTE: This symbol indicates operator tips, particularly useful information, or important information 
about the product or its further uses. The signal words "IMPORTANT NOTE" does not indicate a dangerous or 
harmful situation.