3.Principle structure
There are two major components about the measurement of water level variation :
1.Buried underground material is composed of water pipe and the bottom cover (additional purchase)
2.Ground receiving equipment-steel ruler water level gauge, including the probe, steel ruler cable, receiving system and winding plate and other components.
Probe part:Made of stainless steel. Install the water resistance contact point in the internal, when the contact point comes into the water, it will turn on the receiving system, once left the water, it will stop.
Steel ruler part of the cable: Made ofsteel ruler and wire by plastic technology, which prevents the steel ruler corrosion, but also simplifies the operation process, to make reading more convenient and accurate.
Receiving system part: Consist of the sounder, indicator and peak indicator . The sounder gives a continuous beep,then the indicator light is on, and the peak indicates the voltmeter.
4.Usage method
When the reel is freely rotating, press the power button, then put the probe into the water pipe, at the same time hold the ruler cable, so that the probe slowly move down. When the contact point comes into contaction with the water, the sound device will be issued a continuous beep.At this point read out the depth of the steel ruler at the nozzle, that is the distance from the water table to the pipe mouth . (If the noise is measured in a relatively large environment, the buzzer can not hear ,then observe indicator and the voltmeter.)