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Level measuring instrument

Level measuring instrument
11Pages

Catalog excerpts

General Description ultrasonic level measuring instrument, taking the advantages of various many level measuring instruments, is a universal one characterized by total digitalized and humanized design. It has perfect level monitoring, data transmission and man-machine communication. It is featured by strong anti-interference performance; free setting of upper and lower limits and online output regulation, on-site indication, optional analog, switching value, and RS485 output and easy connection with main unit. The cover, made of waterproof engineering plastics, is small and firm with ABS probe. Therefore, it is applicable for various fields concerning level measuring and monitoring. According to the practical situation, it also can add other modules, such as RS 485, current output; it can be match with PLC better. Features - Sensor: Low power consumption, easy to install and locate, standard 4-20mA output, can be using as level gauge alone. - The probe can be made for IP68, anti-corrosion, explosion, small blind, low power consumption, large range - 16 key operation. The human-machine communication between can be more efficient. - Backup and recovery parameter set. - Measure for level, volume, weight. - Set a filter value to remove - Output HART, it can be directly communication with other instruments. (Optional) - Mini SD data collection and GPRS communication are optional. Measuring Principle Ultrasonic level meter adopt ultrasonic theory that sonic wave come across barrier then reflect to transducer, according to the time and speed, distance from barrier and transducer can be got. Measurement formula as below: D = V * T / 2 D: Measure Distance V: Speed of sound in air T: Time of sound in air

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Sense Range Blind Area Accuracy Display Resolution Keyboard Output Consumption Material Secondary Meter Dimension Sensor Size Installation Size Sensor Cable Operating Surroundings Protection Degree Applications Electricity, mines, factories, urban sewage waterways, control systems and other related fields, such as: Sedimentation pool, Coal washing process, Wastewater treatment, etc.

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Active output Relay output I Split Ultrasonic Level Meter 4—20raA Current input Current input Passive output White color wire Black color wire Relav output Current input Current input: 'Passive output II Split Ultrasonic Level Meter White color wire Black color wire

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Install Precautions Sensor should be placed where there is no obstacle between emission surfaces and measured liquid, it also should be far way from feeding throats. (Refer to chart I) Tank shape should be considered. Some type of container will bring second echo, especially conical and spherical tank. A good installation place will solve the problem. (Refer to chart II) Lever meter can be installed by flange, Φ62hole or M60*2 , whatever installation way, make sure the sensor bottom through the installation hole or flange. (Refer to chart III) Chart III If the liquid to be measured has...

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Refer to the tags attached on the instrument for wiring. In order to keep it working reliable and display precise , please electrify >15 minutes before work. When operated outdoors, it should be placed under a sun screen to avoid direct under sunshine and rain. Lightning proof measures should also be taken outdoor. Main instrument and sensor installation The sensor is equipped with a fixed ring, pre-reserve a mounting hole in the installation place, put it in, and then tightens the screw ring. Main instrument is wall mounting, with three fixation plates. Firstly fixed plates with screws to...

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External Meter Schematic Wiring diagram of current (voltage) output connecting with secondary instrument Level Meter Secondary Instrument Serial output connecting with PC Power Level meter 485-232 PC

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Main specification Sense range: FS= Unusable area: ≤□500mm; □600mm; □≤60mm; □other Accuracy: ■±0.3％×max range; □±2mm; □other Display Resolution: 1mm Output: □0-20mA; ■4-20mA; □0-5V; □1-5V; □0-10V; □1-10V; □RS485; □ 2 Relays; □HART Working temperature: ■normal; □-10-60℃; □other Working pressure: ■normal; □other Working humidity: ≤80%RH Storage temperature: -40-85 Deg. C Storage humidity: ≤70%RH Working volt

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Level measuring instrument 11Pages

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Level measuring instrument
11Pages