The sensor part of the pilot type liquid level transmitter and the signal processing circuit are inside the junction box, and the gas in the liquid collecting cylinder is in contact with the medium, and the pressure is transmitted to the sensor through the air guiding tube, thereby avoiding the sensor and the measured medium. direct contact. Specially designed for high temperature or highly corrosive liquids, this product effectively solves the problem of difficult liquid level measurement. The HJ-DYBS pilot-operated liquid level transmitter is especially suitable for the measurement of high-temperature medium, small-range and highly corrosive medium levels.
Guide pressure level transmitter installation knowledge:
1. The installation direction of the transmitter is vertical, and the input installation position should be away from the liquid inlet and outlet and the agitator.
2. In the occasion of large vibration, the wire can be wound on the transmitter, and the steel wire can be used to absorb the cable.
3. When the transmitter is installed on the side, the bending radius of the air guiding cable should be greater than 10 cm to avoid excessive bending and damage to the air guiding cable.
4. The grounding terminal of the input type liquid level transmitter should be grounded reliably, and the power shielding line should be connected to it.
5. When the liquid level gauge is installed in a stationary deep well or pool, the steel pipe with an inner diameter of about 45 mm (a few holes at different heights for water to enter the pipe) is fixed in the water, and then the input level transmitter is placed. It can be used in steel pipes.
6. When measuring the liquid level of the flowing or agitated liquid, the steel pipe with an inner diameter of about 45 mm (a small hole at different heights on the opposite side of the liquid flow direction so that the water can smoothly enter the pipe) is fixed in the water, and then the input liquid level is set. The transmitter can be used by placing it in a steel tube.
7. Since the bottom of the tank or the bilge is easy to deposit sludge, oil residue, etc., it is recommended to leave the measuring probe at a certain height from the bottom of the tank (cabin) to prevent debris from clogging the probe.
8. When the medium fluctuates greatly and the air guiding cable is very long, the probe should be fixed by a sleeve to prevent the probe from swinging and affecting the measurement accuracy.
DVR Mini Camera
What is DVR Mini Camera
Dvr, which is called DigitalVideoRecorder in full, is a digital video recorder. Compared with traditional analog video recorders, dvr uses hard disk for recording, so it is often called hard disk recorder, also called DVR. It is a set of computer system for image computing, storage and processing. It has the functions of long-time video recording, recording, remote monitoring and control of images/voice and dynamic frames. DVR integrates five functions, including video recorder, picture splitter, PTZ lens control, alarm control, and network transmission. One device can replace a large number of devices in the analog monitoring system, Moreover, it has gradually gained advantages and popularity in terms of price.
DVRs cannot support IP cameras. From a general definition, products called DVRs generally do not support IP network cameras. Digital DVRs generally refer to converting video data captured by analog cameras into digital recordings, and do not include IP network transmission. By definition, DVR intelligence supports the input of analog signals. Therefore, if the DVR supports IP cameras, it is necessary to decode the IP cameras into analog signal signals using a decoder in the front section before entering the DVR.
The "digitalization" of DVR means that compression and storage technology is aimed at digital signals, rather than directly transmitting digitally encoded video images. Therefore, DVR must be deployed near the analog camera.
The function of DVR, with the increase of various voltage sensitive loads in the distribution network, puts forward higher requirements for power quality. However, due to system accidents in the power system, the voltage flicker, drop and other disturbances caused by the startup and shutdown of large equipment, lightning stroke and other principles are unavoidable. Moreover, in the current power grid, the ability to quickly restore power supply after power interruption is far from meeting the requirements of many sensitive loads. Therefore, it is necessary to provide users with stable and uninterrupted high-quality power when interference occurs. Dynamic voltage recovery (DVR) is the choice to solve the above problems today. DVR is connected in series to the feeder line that requires high-quality power to realize dynamic real-time voltage compensation for the line, so that the load end can get the desired high-quality power, and ensure the normal and uninterrupted operation of sensitive user equipment.
DVR Mini Camera,Cctv Camera System, Outdoor Waterproof NVR Set , Wireless Security Camera NVR, Cctv NVR Kit
DVR Mini Camera,Cctv Camera System, Outdoor Waterproof NVR Set , Wireless Security Camera NVR, Cctv NVR Kit
Shenzhen Fuvision Electronics Co., Ltd. , https://www.outdoorsolarcamera.com