Micronics UF AV5500, Руководство пользователя

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Page 64
UF AV5500 Area-Velocity Flow Meter
SE4 SENSOR COUPLING
Dual Sensor Configuration
For permanent or temporary bonding, the following are recommended:
a) Super Lube ® (supplied)
Additional supply: order Micronics Option CC-SL30
b) High Temperature compound
Additional supply: order Micronics Option CC-SL30HT
c) Electrocardiograph gel
d) Petroleum gel (Vaseline)
The above are arranged in their order of preferred application.
c & d are only good for temporary bonding at room temperature.
DO NOT USE: Silicon RTV caulking compound (silicon rubber).
Use the PC4 pipe clamp (supplied) as illustrated below, or
use a loop of electrical tape for temporary mounting. Apply
coupling compound to the coloured face of the sensor. A
bead, similar to toothpaste on a toothbrush, is ideal. Do not
overtighten (crush the sensor).
The sensor must be fixed securely to the pipe with coupling material
between the sensor face and the pipe. Sensor installation with
excessive coupling compound can result in gaps or voids in the
coupling and cause errors or loss of signal. Insufficient coupling
compound will create similar conditions.
Over time, temporary coupling compounds (e.g. Petroleum Gel) may gradually sag away from the
sensor resulting in reduced signal strength and finally complete loss of signal. Warm temperatures,
moisture and vibration will accelerate this process. Super Lube ® as supplied with the UF AV5500 (and
available from Micronics Limited) is recommended for permanent installations.