Twilight MC-SUP2000H, Руководство пользователя

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Chapter 4 Flow measurement
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eliminate or reduce the shadow noise of the measurement of scaling on the inner
wall of the pipe
1.Hit the pipe at the measuring point with a hammer until the signal strength at the
measuring point increases significantly.
2.Z method was selected for measurement, and scaling was set as lining to obtain
better measurement accuracy.
3.Replace the pipe at the measuring point.
4.1.4. Temperature
Extrapolating the temperature range of the sensor can easily cause damage to the
sensor or significantly shorten the life of the sensor.Therefore, the temperature of
the fluid at the installation point must be within the range of the installation and use
of the sensor, and try to choose the installation point with lower
temperature.Therefore, the same pipeline as far as possible to avoid the boiler
water outlet, heat exchanger outlet place, as far as possible installed on the
backwater pipeline (conditions allow, it is best to measure the temperature of the
installation point before measurement).
4.1.5. Interfere
The host, sensor and cable of portable/handheld ultrasonic flowmeter (energy
meter) are vulnerable to interference sources such as frequency converter, radio,
television, microwave communication station, mobile phone base station, high
voltage line and so on.So select sensors and host installation points, as far away
as possible from these sources of interference