1. Appearance check: Check the appearance of the sensor to be inspected. If it is found that the appearance of the sensor is cracked, the sensor may be damaged.
2. Rough inspection of the line: The power supply line, signal line and shielded line of the sensor are coaxial cables, which can be tested with a multimeter (ie, power line - signal line, power line - shielded line, signal line - shielded line). If a short circuit, disconnection, or a drop in insulation performance indicates that the sensor may be damaged.
3. Measure internal resistance: When there is no dedicated detection device, the input impedance ZI and output impedance ZO of the sensor can be measured with the ohm file of the digital multimeter, and the measured value and the nominal value of the product certificate provided by the manufacturer For comparison, when the measured value exceeds the allowable range, it indicates that the sensor may be damaged (Note: The self-numerical value of the multimeter to be used should be accurate, and it is better to use after measurement verification/calibration).
4. No-load detection:
Remove all sensors and access measurement circuits one by one. Under no-load (no-load) conditions, a well-performing sensor will quickly return to zero and the displayed value will be more stable, while the damaged sensor may show a digital jump. Can not return to zero and other phenomena. After the manual clearing the above phenomenon will still be repeated. Connect all sensors, still carry out no-load measurement, remove a sensor and observe whether the displayed value can be stable, then the sensor After it is still connected, the other sensor is removed and measured. All sensors are measured in sequence. If it is found that the value returned to normal after a sensor is removed, the sensor may be damaged.
5. Load check: When the above method cannot be used to determine the damaged sensor, load calibration can be performed on all sensors using the standard calibration method. The load test is performed on the sensors one by one using the standard weight of 1t. The undamaged sensor shows the measured value as the superimposed value of the standard weight gradually loaded, and the measured value displayed by the damaged sensor will have a large deviation from the superimposed value of the standard weight gradually loaded. .
Split Anchoring Drilling Machine
1.Split Anchoring Drilling Machine drilling rig is a kind of full hydraulic power head drilling rig and high torque.It is applied to drill heavy duty anchor holes at side slope of water power station, railway or highway projects, to drill drainage holes and It also used to prevent or solve geologic calamity, such as landslide and rock collapse etc. In addition, it is also used to drill high-pressure jet grouting holes.
2.It has great drilling capability, wide range of application, rapid drilling speed and high drilling efficiency, as well as powerful ability of eliminating accident.
3.Rig structure is separate group design, it assures good disassembling, rapid and convenient mount and transport, best working environment and lower labor strength.
Application:
1.Anchor holes at side slope of water power station, railway or highway projects, to drill drainage holes and It also used to prevent or solve geologic calamity, such as landslide and rock collapse etc.
2.It is also used to drill high-pressure jet grouting holes.
Split Anchoring Drilling Machine,Split Anchoring Machine,Split Anchoring Rig,Full Hydraulic Rig
JIANGSU XI TEC ENVIRONMENTAL&DRILLING EQUIPMENT COMPANY CO.LTD , https://www.xitecdrilling.com