Discrete I/O Relay Option; Temperature Rating - Mettler Toledo IND560 Serie Guia De Instalacion

IND560xx Terminal Division 2 and Zone 2/22 Installation Manual

Discrete I/O Relay Option

An arcing or sparking device cannot be used inside the Division 2 or Zone 2/22
hazardous area without use of a properly rated enclosure or other nationally
approved protection. Because the optional Discrete I/O Relay board contains non-
sealed relays, it cannot be installed and used in an IND560xx installed within a
Division 2 or Zone 2/22 hazardous area.
If discrete inputs and outputs are required, the remote ARM100 (#71209352)
must be used and it must be located in the safe area or inside a properly rated
enclosure.

Temperature Rating

It is important that the temperature rating of the IND560xx terminal be appropriate
for the environment in which it will be used. The IND560xx terminal has been
approved by UL and DEMKO with a temperature rating of T4 (135˚ C). This value
must be lower than the Auto Ignition Temperature (AIT) of the hazardous product in
order to be safe. If the AIT of the hazardous product is lower than the temperature
rating of the IND560xx terminal, the IND560xx terminal MUST NOT BE USED in
that environment.
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WARNING
THE INTERNAL DISCRETE I/O RELAY OPTION #71209093, #22015564
OR #22015536 MUST NOT BE USED IN AN IND560xx TERMINAL
INSTALLED IN AN AREA CLASSIFIED AS DIVISION 2 OR ZONE 2/22.
FAILURE TO COMPLY WITH THIS WARNING COULD RESULT IN BODILY
HARM AND/OR PROPERTY DAMAGE.
THE IND560xx TERMINAL HAS A UL AND DEMKO TEMPERATURE
RATING OF T4 (135° C). IT MUST NOT BE USED IN AREAS WHERE
THE AUTO IGNITION TEMPERATURE OF THE HAZARDOUS MATERIAL
IS BELOW THIS RATING.
WARNING