Emerson Process Management T-SERIES Series sensor ambient and process temperature limits

Determining a Location

Figure 4 T-Series sensor ambient and process temperature limits

Mount transmitter remotely; use junction box

(°C)						125.5
°F
						(52)
in	140 (60)
or transmitter											122
											(50)
	100 (38)
core processor	60 (16)
	20 (7)						Below –40 °F (–40 °C),
of						mount transmitter remotely;
temperature								use junction box
	–20 (–29)
	–40 (–40)
	–60 (–51)
Ambient
	–60 (–51)	–20 (–29)	20 (7)	60 (16)	100 (38)	140 (60)	200 (93)	240 (116)	280 (138)	300 (149)	320 (160)

Maximum process temperature in °F (°C)

*When ambient temperature is below –40 °F (–40 °C), a core processor must be heated to bring its local ambient temperature to between –40 °F (–40 °C) and +140 °F (+60 °C). Long-term storage of electronics at ambient temperatures below –40 °F (–40 °C) is not recommended.

*For the purposes of selecting electronics options, this graph should be used only as a general guide. If your process conditions are close to the gray areas, it may be inappropriate to use electronics options other than a junction box. Consult with your Micro Motion representative.

Hazardous area approvals may impose additional limits on ambient and process temperature. For the ATEX “T” rating, refer to the ATEX documentation shipped with the sensor or available on the Micro Motion web site at www.micromotion.com. UL and CSA ambient temperature limits are listed in Table 1.

Table 1 UL and CSA ambient temperature limits

	Electronics	°F	°C
UL	Sensor with junction box	+104 maximum	+40 maximum
	Sensor with core processor or integral	–40 to +140	–40 to +60
	transmitter
CSA	Sensor with junction box	+140 maximum	+60 maximum
	Sensor with integral Model 1700/2700	–40 to +140	–40 to +60
	transmitter

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