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Nuclear level gauge (including chemical explosion-proof)
Overview of HDS-EN series continuous nuclear level gauge system HDS-EN series nuclear level gauge uses energy decay to measure level
Product details
HDS-EN series continuous nuclear level gauge
System Overview
HDS-ENThe series of nuclear level gauges use energy decay to measure the level of the material. The radioactive source is installed on one side of the container, and the rod-shaped detector is installed on the other side of the container.γThe radiation passes through the container wall and the upper space of the material to reach the probe. When the material level increases, the energy reaching the probe decreases. The electronic circuit of the instrument converts this energy change into online detection of the material level. By utilizing this technology, high-precision level readings and rapid responses to level changes can be obtained. Mainly used for the level height of liquid and bulk materials in various reactors, containers, and coal bunkers. It is not related to the physical and chemical properties of the material being tested inside the container, and is particularly suitable for high-pressure, strongly corrosive, high viscosity, skinning, high temperature, and high dust environments.
Main technical parameters of the system
◇ Measurement range:0－10mIf multi threading is used, continuous liquid can be measured within a range of tens of meters(material)Position changes.
◇ Level measurement accuracy:≤±3.0%full scale
◇ Time filtering constant:0-1000s
Explosion proof rating: Exd [ia] Ⅱ CT6 Gb Protection rating: IP65
◇ Receiving detector: using rod-shaped scintillation detector and ionizing radiation detector.
◇ Instrument linearization: logarithmic and multi-point signal normalization are used.
◇ Radioactive source: usingCs137perhapsCo60, activity10-8000mCiThe scope and activity size depend on the on-site situation
◇γThe source is shielded by a specially designed protective tank, which has been tested by the health and environmental protection department on site and meets relevant national safety standards. It will not cause harm to the human body. Please rest assured
◇ Detector: Output0-5V/0-100kHzPulse material level(liquid level)Signal transmission secondary instrument. Transmission distance can reach500Rice.
◇ Equipped with two fully isolated channels4-20mAOnline continuous material level(liquid level)Signal, fully isolated4-20mA PIDControl output.
◇Alarm for over limit switch quantity of material level. Relay contact capacity: 250VAC 5A or 30VDC 5A.
System features:
Adopting a long-lived, highly sensitive, and efficient scintillation detector, with sensitive detection, can greatly reduce the amount of radioactive sources used and ensure the radiation safety of the environment;
The non-contact design makes the online level measurement system very suitable for applications in environments with abrasion, corrosion, high temperature, and high pressure.
Gamma radiation technology is not affected by process parameters such as pressure, temperature, viscosity, or density changes.
High sensitivity detectors can achieve high measurement accuracy using low activity radioactive sources, and the repeatability of measurement is limited by the probe range1%.
Adopting a wide industrial grade input power module to meet the transient power requirements of industrial sites, the new peak stabilization technology ensures the long-term stable operation of the instrument.
◇ Adopting320*240High resolution LCD display, Chinese subtitle display menu, concise and clear; Online operation prompts, truly realizing paperless online calibration and debugging operations.
The instrument can display the degree value changes of the material level inside the container in an online column chart, and provide the function of querying the instantaneous material level change curve.
Schematic diagram for on-site installation of nuclear level gauge and liquid level gauge process
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