Emerson CMF200A installation manual 113

Determining a Location

Figure 5 ELITE sensor ambient and process temperature limits (all models except high-temperature and extreme high-temperature models)

Mount transmitter remotely; use junction box

(°C)	176 (80)					140
°F
						(60)
in	140 (60)
transmitter	104 (40)									113 (45)
	68 (20)
or
processor	32 (0)
	–4 (–20)
core	–40 (–40)
of
temperature	–76 (–60)
			Mount transmitter remotely; use junction box
	–112 (–80)
Ambient	–148 (–100)
	–400 (–240)	–292 (–180)	–184 (–120)	–76 (–60)	32 (0)	140 (60)	248 (120)	356 (180)	400 (204)	464 (240)

Maximum process temperature in °F (°C)

Notes:

1.When ambient temperature is below –40 °F (–40 °C), a core processor or Model 2400S transmitter 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.

2.Temperature limits may be further restricted by hazardous area approvals.

3.The extended mount option allows the sensor case to be insulated without covering the transmitter, core processor, or junction box, but does not affect temperature ratings.

4.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.

Installation Manual 7