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Environmental limits for R-Series sensorsFigure 1-1:
Maximum process temperature in °F (°C)
176 (80)
140 (60)
104 (40)
68 (20)
32 (0)
–4 (–20)
–40 (–40)
–148 (–100)
158
(70)
Ambient temperature of core processor or
transmitter in °F (°C)
–112 (–80)
–76 (–60)
–40 (–40)
–4 (–20)
32 (0)
68 (20)
104 (40)
140 (60)
176 (80)
212 (100)
248 (120)
302 (150)
104
(40)
Notes
• When ambient temperature is below –40 °F (–40 °C), a core processor or 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.
• Temperature limits may be further restricted by hazardous area approvals. Refer to the hazardous
area approvals documentation shipped with the sensor or available from the Micro Motion web site
(www.micromotion.com).
• The extended-electronics option allows the sensor case to be insulated without covering the
transmitter or core processor, but does not affect temperature ratings.
Planning
Installation Manual 3