Intelligent health type pressure transmitter

ZW3851 seriesIntelligent health type pressure transmitterAdopt import stainless steel isolation diaphragm of the high accuracy force sensor chip is to realize measuring health environment pressure products.Clogging sensor flat membrane structure can prevent the dope, scaling and unsanitary happens, apply strict hygiene environment, diaphragm material 316 l, strong corrosion resistance, wide temperature range of 120 ℃;Sensors connected interface has thread type, clamp, flange type is optional.

Second, the working principle:

ZW3851 series intelligent health type pressure transmitter is by measuring the principle of the diaphragm and on both sides of the insulation slices on the electrodes of a capacitor.When inconsistent pressure on both sides, to cause measuring diaphragm displacement, the displacement and stress is directly proportional to the difference, so both sides capacitance range, through the link of oscillation and demodulation, is converted into is proportional to the pressure signal, after temperature compensation and the linear correction, converted into a standard electrical signals.

Applications:

ZW3851 series intelligent health type pressure transmitter for the integration of all stainless steel flat membrane structure, especially for food, medical, pharmaceutical and health industry.Sensor interface has clamp, M27 x 2, flange can choose.The sensor plane membrane structure to prevent scale formation, not health and viscous liquid blocking problem.Widely used in food, pharmaceutical, brewing, and other areas of the process control.Its industry applications such as the following:

1, food hygiene industry;

2, pulp and paper industry;

3, water level measurement;

4, cans level measurement;

5, pipeline level measurement;

6, pharmaceutical and biological products processing.

Four, the main features:

1, the super performance measurement for pressure, differential pressure, liquid level, flow measurement;

2, digital precision: + (-) 0.05%;

3, stability: 0.25% 60 months;

4, range: 100:1;

5, measuring rate: 0.2 S;

6, miniaturization (2.4 kg) stainless steel flange, easy to install;

7, process connection compatible with other products, to achieve the ideal measurement;

8, the sensor with H alloy sheath (technology), and achieved excellent cold and hot stability;

9, 16 computer;

10, standard 4-20 ma, with digital signal based on HART protocol, the remote control support to field bus and upgrade based on the technology of field control.

Five, the technical parameters:

1, clean the planar isolation diaphragm, in line with international health standard; 3 a

2, use ceramic capacitance pressure sensor or diffusion silicon pressure sensor;

3, range: 0-4 kpa ~ 35 mpa;

4, power supply: 15-36 VDC;

5, temperature drift: 0.02% FS / ° C;

6, accuracy: 0.25%;

7, shell protection: IP65;

8, electrical connections, cable waterproof box type 2088 haltzman joint shell optional;

9, temperature: electronic circuit board work in - 40 ~ 85 ℃;Sensitive components work in - 40 ~ 104 ℃;Storage temperature - 40 ~ 85 ℃;With digital display - 25 ~ 65 ℃ (normal operation);- 40 ~ 85 ℃ (no damage);

10, relative humidity: 0 ~ 95%;

11, stability, zui range in a wide range of plus or minus 0.25% / 6 months.

12, vibration impact: in any axis upwards, frequency is 200 hz, error in a wide range of zui range of plus or minus 0.05% / g;

13, load effect: as long as the input voltage is higher than 12 v in the transmitter, the load work area without load;

14, installation location: zui can produce no greater than 0.25 kPa zero error, this error can be eliminated by correction, the range have no effect;Measure the ontology flange rotation relative to no effect.

Six, installation requirements:

1, before installation, please read carefully the product specification, and check the related information of the product.

2, the transmitter shall be installed in ventilated, dry, no corrosion, shady and cool place, such as outdoor installation should add protective cover, avoid sun and rain, avoid transmitter performance degradation or failure.

3, the transmitter is a precision instrument, avoid strong shocks, throw during installation.

4, according to the wiring diagram properly connected.

5, pay attention to protect transmitter which leads to the cable.When used in industry site, it is recommended to use metal protection or overhead.Do not loose cable leads to the sealing nut, to avoid moisture to enter.

Seven, matters needing attention when using:

1 when the winter freezing, sanitary type pressure transmitter, anti-freezing measures according to the required in outdoor transmitter, without pressure, fluid due to the icing volume expansion in the mouth, lead to the damage of sensors.

2, connection, cable through the waterproof connector (attachment) or round tube and screw down the sealing nut, such as in case of rain through the cable leakage into the transmitter inside the shell.

3, when measuring the pressure of the gas, apply pressure to open at the top of the process piping, and health type transducer is installed in the upper part of the process pipe so that the deposition of liquid pipelines of rapid injection to the process.

4, sanitary type pressure transmitter measuring steam or other high temperature medium, the need to connect with the buffer tube (coil) such as condenser, should not make the transmitter operating temperature more than limit.

5, pay attention to the guide sensor pressure tube to install where small temperature fluctuations.

6, when measuring the liquid pressure, health type pressure transmitter installation location should avoid the impact of the fluid (water hammer), in order to avoid the sensor damage of overpressure.

7, when measuring the liquid pressure, pressure pipe side should be open in the process, in order to avoid precipitation product residue.

Eight, to prevent the health type pressure transmitter with corrosive or overheating of media contact, prevent the dross in intraductal deposition.

Eight, selection of code:

Nine, design selection and ordering information:

1, the selection of specifications in the table Numbers, symbols must fill in the clear, accurate.

2, if you have positive and negative migration, must indicate the migration amount value.

3, according to the user specified range checking.If the user has no rules, set at maximum range in the transmitter, the check will be carried out under room temperature and atmospheric pressure.

4, need labeling station number, should be indicated when ordering.

After-sales service:

1, from the date of signing of the contract, I in the way provided for products of the company offers free maintenance and maintenance service, commitment to lifelong maintenance service;

2, jiangsu wei measurement and control instrument co., LTD. Sales manager will be in regular contact with customers, understａnd the usage of products, and solve the problems of the customers to use in the process of produce, free of charge to provide technical support;

3 the man-made damage is found, the warranty period, our company is responsible for the maintenance, and the resulting maintenance fee;

4, product quality problems or are not satisfied with product, the user can choose unconditional return, wei tt&c don't charge any fees, appear quality problem, bear the freight back and forth.