PT260 Settlement Sensor Displacement Liquid Static Level Meter

Introduction

The PT260 series of static level is composed of liquid reservoirs,imported high precision cores,special customized circuit modules, protectivecovers and other components. A plurality of static level gauges are connectedtogether with liquid-filled connecting pipes, the reference static level gaugeis located on a stable reference point..

Scope and application

The PT260 series of static level is a high liquid level measuringinstrument used to measue the basis and relative settlement of each measuringpoint. of the building. Application sites include large buildings, such ashydropower plants, dams, high-rise buildings, nuclear power plants, watercoservancy projects, railways, subways, high-speed rails, integrated pipelinecorridors and other measurement points of uneven unsettlement points.

Installation methods

Installation method and process

1、The requirement for base point selection of base point before installationis that the distance between base points principle is larger than 1M as much aspossible which is relatively stable and free of vibration source'sinterference. The drop is not more than 1.5M。 The spacing betweenthe measuring points is arranged according to the design requirement.

2、Confirm the IDadress of static level before installation and record it in PC software, testall sensors to be installed online foe 10 minuites. determine static levelaccording to the order of the ID number and the location of the measuring pointduring installation.

3、The measuringpoint sensor is fixed and installed with expansion bolts and required to befixed firmly, then connect the liquid connecting pipes in series to eachmeasuring point sensor, the base point and the liquid storage tank are connected and closed, the screw at theliquid interface is locked and fixed and no liquid leakage is required.

4、Theair pipe joints of each static level gauge are connected in series with pipelines.

5、Fill the liquid tank. Different monitoring environment have differentrequirements for liquids. Two liquids are recommended, the first is tapwaterａnd ditilled water. Generally, when using this liquid, it is necessary tomake sure the ambient temperature change is not greater than 10 degrees, andthe expansion coefficient of the liquid will not freeze within the controlrange. The second type is antifreeze+tap water with a ratio of 1:1. This liquidis generally used in the northern cold area with a temperature range of -20°-30°. The main purpose is to prevent freezing.

6、The liquid isadded in one place in the liquid storage tank. When the liquid is added, thevalve the measuring point sensor is opened to ensure that air can be discharged.When adding liquid, the connecting pipe should be ensured there can be no airbubbles in the sensor. The diameters of the bubbles is not more than 2mm.Unscrew the exhaust valve to exhaust the air. In this way, the sensor is moresecure.

Safty precautions

1.Makesure that the base is on a substantially same surface.

2. Allliquid storage tanks should be carefullychecked for water leakage.

3. Makesure to drain the rest of the liquidconnection pipes in each section, there canbe no air sections.

4. Theliquid connecting pipes should be protected to prevent the liquid from beingblocked after buried.

5 Do not have machinery at each measuring point afer burial , so asnot to cause damage.

Technical data

Pressure range： 500mmH₂O、1000mmH₂O、2000mmH₂O、2500mmH₂O、

Excitation voltage： 9…36VDC

output signal： RS485

resolution： 0.01mmH₂O

Accuracy（25℃）： ±0.5 mmH₂O、±1 mmH₂O、±2 mmH₂O

Temprature effect： ±0.5 mmH₂O、±1 mmH₂O、±2 mmH₂O

Operating temperature： -20～85℃

Compensation temperature： -20～60℃

Overload capacity： 200%FSO

Shell material： aluminum alloy

Protection level： IP67

Installation method： Vertical fixed installation with exhaustvalve upwards

Electrical connections： Waterproof four-core plug-in

Liquid/Gas interface： Stainless steel quick connector

Electrical

Outline and Dimension

Selecting Guide