Installation points and precautions of split angle probe

Split angle probe ： Different from the traditional angle probe , The split probe divides the angle probe into several detachable 、 Assembled function segment , Assemble when in use , Unpack after use , Easy to carry , Small size 、 A series of outstanding features such as adjustable wheel base . The output form of angle probe includes digital signal and analog signal , The communication interface of digital signal is RS485, The communication protocol is standard MODBUS agreement ; Analog signal is voltage output , The output range is 0~2V.

One . Connection and use of angle probe

1 . Connection of angle probe

Assemble the split angle probe with a hexagonal wrench , Check whether the installation position is accurate , Whether the assembly is firm ; The supporting steel wire rope is installed on the ring screw of the sensing section , Check whether the connection is tight . Spare after assembly .

2. How to use the angle probe

In normal use , The steel wire we are equipped with must be tied to the lifting ring above , Lower the probe .

（1）. Ensure that each inclinometer is well connected with the installation accessories , Both ends of the angle probe are equipped with a guiding and positioning mechanism strictly in the same plane .

（2）. When multiple angle probes are used in series , It is necessary to connect and fix a single angle probe with accessories , The installation direction of each inclinometer should be in the same plane . The installation direction should be upstream and downstream , The direction deviation should not be greater than 5°; The vertical installation deviation should be controlled within 5cm And record the installation elevation and initial inclination of each measuring point .

（3）. Ensure that the inclinometer hole is vertical , The inclination of drilling hole shall be controlled within 2° within .

Two . Drilling specification requirements

Hole diameter ：>=φ109mm<φ159mm The grouting treatment between the hole wall and the inclinometer pipe is required after the installation of the inclinometer probe （ Medium coarse sand can be used for drilling in soil 、 Backfilling with undisturbed soil ）, During backfilling, pay attention to prevent backfill from entering the inclinometer pipe . Installation on the ground at the mouth of inclinometer pipe φ150 Flange plate , Insert the screw in advance and fix it with cement . The specification of cement table is 400*400*400（ The surface height of the cement platform is 200） After installing the angle probe , Use a saw to cut a slot at the head of the inclinometer , Used to fix the instrument , Install the distribution box on the cement table , And lead the instrument connection data line to the distribution box . The measuring steel pipe should have a threading hole at the bottom , For the signal line to pass through .

1 Installation of inclinometer

（1）. Use diameter 70mm ABS Inclinometer tube , Before installation, set up a support above the inclinometer hole , In order to support and hoist the inclinometer , To prevent the inclinometer pipe from falling into the hole during installation , Cause waste holes .

（2）. Precautions for installation of inclinometer ： First, connect the bottom cover of the inclinometer pipe with the first section of the inclinometer pipe , Cover the bottom of the pipe , Seal the connection gap with adhesive ; Inclinometer tube extension , First, on the interface diagram of the installed inclinometer pipe PVC glue , Insert the pipe joint , Then paint the nozzle of the next section of pipe PVC glue , Insert the pipe joint , Drill with a hand drill , Fix with self tapping screws of appropriate length , Lengthen section by section ; When lowering the pipe, it is mainly ensured that the direction of any pair of guide grooves of the inclinometer pipe is vertical and parallel to the installation baseline .

3、 ... and . matters needing attention

1. Angle probe is used in many occasions , The working and construction conditions are not exactly the same , Therefore, the methods of embedding and installation are also different , For general installation diagram, please refer to the diagram .

2. The installation direction of the instrument must be remembered during installation , Correctly distinguish positive 、 The corresponding relationship between negative value change and field monitoring direction , It is convenient for data analysis and judgment ;

3. According to the needs of the project, the initial value of the instrument should be subtracted from the formal use calculation data （ The first measured value after the installation and stabilization of the instrument is the initial value ）;

4 The aviation plug at the cable end of the instrument must be waterproof and sealed , No water 、 Moisture seeps into the cable 、 Inside the plug , Do not drag the cable , Ensure its reliability and safety .