• The extended-mount electronics option allows the sensor case to be insulated without
covering the transmitter, core processor, or junction box, but does not affect
temperature ratings. When insulating the sensor case at elevated process
temperatures (above 140 °F (60.0 °C)), please ensure electronics are not enclosed in
insulation as this may lead to electronics failure.
Ambient and process temperature limits for all H-Series meters
400
(204)
81
(27)
–148
(–100)
Tproc
140 (60)
158 (70)
–40 (–40)
A
B
Tamb
1.4 Recommendations for hygienic and self-
draining applications
H-Series sensors are self-draining when installed in a vertical pipeline.
For optimal cleanability and drainability:
• If possible, install the sensor in a vertical pipeline with the process fluid flowing upward
through the sensor.
• If the sensor must be installed in a horizontal pipeline, drainage is accomplished by air
purge evacuation of the pipeline circuit.
• For clean-in-place (CIP) applications, Micro Motion recommends using the generally-
accepted flow velocity of at least 1.5 m/s for cleaning the sensor.
• The gap between the electronics housing and sensor body should be inspected
periodically. Manually clean this gap when necessary.
• Tri-clamp and DIN 11851 style process connections require special gaskets to comply
with EHEDG requirements for hygienic design.
Installation Manual
Planning
20002346 January 2019
Installation Manual 7
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