Endress+Hauser iTEMP TMT82 - Mounting

Mounting iTEMP TMT82
10 Endress+Hauser
4.1.2 Important ambient conditions
• Ambient temperature:
• –40 to +85 °C (–40 to +185 °F), for hazardous areas see Ex documentation
• –50 to +85 °C (–58 to +185 °F), for hazardous areas see Ex documentation; Product
Configurator order code for "Test, certificate, declaration", option "JM"
1)
• –52 to +85 °C (–62 to +185 °F), for hazardous areas see Ex documentation, Product
Configurator order code for "Test, certificate, declaration", option "JN"
1)
• Head transmitter, field mount housing with separate terminal compartment incl. display:
–30 to +85 °C (–22 to +185 °F). At temperatures < –20 °C (–4 °F) the display may react
slowly, Product Configurator, order code for "Field housing", option "R" and "S"
• SIL Mode: –40 to +70 °C (–40 to +158 °F)
• Head transmitter in accordance with climate class C1, DIN rail transmitter in accordance
with B2 as per EN 60654-1
• Condensation as per IEC 60068-2-33 permitted for head transmitter, not permitted for DIN
rail transmitter
• Max. rel. humidity: 95% as per IEC 60068-2-30
• Degree of protection:
• Head transmitter with screw terminals: IP 00, with spring terminals: IP 30. In installed
state, depends on the terminal head or field housing used.
• When installing in field housing TA30x: IP 66/68 (NEMA Type 4x encl.)
• When installing in field mount housing with separate terminal compartment: IP 67,
NEMA Type 4x
• DIN rail device: IP 20
NOTICE
‣
When using in hazardous areas, the limit values of the certificates and approvals must be
observed.
4.2 Mounting
A Phillips head screwdriver is required to mount the head transmitter.
NOTICE
Do not overtighten the mounting screws as this could damage the head transmitter.
‣
Maximum torque = 1 Nm (¾ pound-feet).
1) If the temperature is below –40 °C (–40 °F), increased failure rates are likely.