2-6
Chapter 2 Installation of this Device
(iii) Installation precautions for pressure/differential pressure remote-sealed
type of differential pressure transmitters
• If the liquid fill is for high-temperature high-vacuum, the viscosity of the liquid fill will rise
as the measured temperature and ambient temperature fall, and the response speed of the
transmitter will slow down. Instrument the device such that the ambient temperature of the
capillary tubes and main unit is always at least 10 °C.
• When measuring the sealed tank level, attach the transmitter in a location which is at least
10 cm lower than the location of the tank nozzle. If it is not possible to attach it at least 10 cm
lower, look for an attachment location in accordance with the item described next.
Figure 2-3. Attachment Location for Sealed Tank Level Measurement
(Figure 2-3 is the differential pressure remote case)
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