Siemens SITRANS LR500 Series - Page 170

For dust application under the intrinsically safe protection Ex ia (EPL Da / Category 1D / Class
II, Div 1), belo
w is the ambient temperature de-rating table for various elevated process
temperatures.
Maximum surface
t
emperature
Ambient Temperature Process Temperature
T95 °C -40 to +80 °C (-40 to +176 °F) -40 to +80 °C (-40 to +176 °F)
-40 to +65 °C (-40 to +149 °F) -40 to +160 °C (-40 to +320 °F)
-40 to +50 °C (-40 to +122 °F) -40 to +250 °C (-40 to +482 °F)
Dust ignition proof/ Dust protection by Enclosure Ex 't'
F
or dust application under the dust ignition protection Ex ta (EPL Da / Category 1D), below is the
ambient temperature de-rating table for various elevated process temperatures.
Maximum surface
t
emperature
Ambient Temperature Process Temperature
T137 °C -40 to +80 °C (-40 to +176 °F) -40 to +80 °C (-40 to +176 °F)
-40 to +65 °C (-40 to +149 °F) -40 to +160 °C (-40 to +320 °F)
-40 to +50 °C (-40 to +122 °F) -40 to +250 °C (-40 to +482 °F)
For dust application under Class II, III - Div 1, below is the ambient temperature de-rating
t
able for various elevated process temperatures.
T-code Ambient Temperature Process Temperature
T4 -40 to +80 °C (-40 to +176 °F) -40 to +80 °C (-40 to +176 °F)
-40 to +65 °C (-40 to +149 °F) -40 to +160 °C (-40 to +320 °F)
-40 to +50 °C (-40 to +122 °F) -40 to +250 °C (-40 to +482 °F)
Non-incendive
F
or gas application under Class I, Div 2, below is the ambient temperature de-rating table for
various T codes and elevated process temperatures.
T-Code Ambient Temperature Process Temperature
T4, T5 -40 to +80 °C (-40 to +176 °F) -40 to +80 °C (-40 to +176 °F)
-40 to +75 °C (-40 to +167 °F) -40 to +160 °C (-40 to +320 °F)
-40 to +70 °C (-40 to +158 °F) -40 to +250 °C (-40 to +482 °F)
T6 -40 to +65 °C (-40 to +149 °F) -40 to +65 °C (-40 to +149 °F)
-40 to +60 °C (-40 to +140 °F) -40 to +150 °C (-40 to +302 °F)
-40 to +55 °C (-40 to +131 °F) -40 to +250 °C (-40 to +482 °F)
Technical speci󹪝cations
12.2Temperature
SITRANS LR500 series with mA/HART
170 Operating Instructions, 03/2024, A5E51099898-AA