UOC Series Open Channel Flowmeter Installation Guide

This guide outlines key procedures for installing both the host unit and the probe, covering environmental considerations, mechanical mounting, and application-specific setups. The following sections provide detailed instructions to ensure measurement accuracy and long-term system stability.

I.Hints for the host mounting l

• The host should not be mounted in a confined space where temperatures may exceed the normal working temperature (-40~+75), if the host is mounted outside, it must be protected from direct sunlight or severe weather conditions.

• Ensure that the mounting surface is not subject to vibration and is not in close proximity

to high voltage cables, contactors or drive controls. l

• Select appropriate knockouts in the base of the enclosure and fit appropriate cable glands to maintain the IP67 rating. l

• Do not use excessive force when tightening the fixing and avoid any distortion of the enclosure. •Pay attentions to the dimensions of the host and the enclosure.

II.Hints for probe mounting l

• The probe can be supplied as standard or with a screw nut or with an ordered flange. l

• Make sure that the probe is mounted perpendicular to the monitored surface and ideally, at least 0.25 meters above it, because the probe cannot get response in the blind zone.

• The probe has a 10 inclusive conical beam angel at 3 dB and must be mounted with a clear unobstructed sight of the liquid to be measured. But smooth vertical sidewalls weir tank will not cause false signals. l

• For flume type open channel flow meter installations, position the probe upstream of the measurement structure.

• Do not over-tighten the bolts on flange. l

• When install to the cold area, should choose the lengthen sensor and make the sensor extend into the container, shun frost and icing. l

• For Parshall flume, the probe should be installed in a position the 2/3 contraction away from the throat. l

• For weir type open channel flowmeter applications (V-Notch and rectangular weirs), install the probe on the upstream side at a distance of 3-4 times the maximum water depth above the weir crest.