Capacitive boiler drum level gauge

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Capacitive boiler drum level gauge has full process level accurately under the condition of continuo…

Products overview:

ZW - BGL seriesCapacitive boiler drum level gaugeUsing tomography technology, through the analysis of the sensor scans and special liquid level meter in the dielectric constant and the temperature of the liquid phase and gas phase, the dynamic compensation.After comparison operation system software, the output is proportional to the boiler liquid level standard of 4 ~ 20 ma current signal and four groups of SPST solid state relay switch signal.

The liquid level meter in the process of running a bit is not affected by dielectric constant change, boiler temperature and steam interference is no effect on the liquid level meter, the measurement accuracy is more than one over one thousand, long-term stability is very good, almost no drift, comprehensive performance is unparalleled, other measuring methods is a full process, high precision, high reliability of boiler liquid level gauge.

Second, the working principle:

ZW - BGL series capacitance type boiler drum level gauge is based on the principle of capacitance measuring liquid level gauge.Using tomography technology, through the analysis of the sensor scans and special liquid level meter in the dielectric constant and the temperature of the liquid phase and gas phase, the dynamic compensation.After comparison operation system software, the output is proportional to the boiler liquid level standard of 4 ~ 20 ma current signal and four groups of SPST solid state relay switch signal.

Applications:

ZW - BGL series capacitance type boiler drum level gauge with high temperature, high pressure resistance, long service life, high reliability, high precision, high stability, can be widely used in all kinds of industrial steam drum, plus, low and high, conversion furnace such as liquid level measurement and control of pressure vessel.

Four, the main features:

1, two wire current loop, measurement system from the current loop;

Rev. 2, with a full working condition (boiler, stop, blowdown, accident conditions, etc.) under the liquid level accurate continuous measurement and control functions;

3, take tomography technology, to be able to medium dielectric constant changes in liquid phase and the vapour phase medium dielectric constant change and temperature change for precise compensation at the same time, under any circumstances without having to calibration;

4, high precision, high stability, resolution of 0.01 mm, years of drift is more than 0.5 mm;

5, through the CE certification of good electromagnetic compatibility features;

6, high temperature, high pressure resistance, long life;

7, there is no "false water level" measurement;

8, operating software for the Chinese operating environment, easy setting, with the diagnosis.

Five, the technical parameters:

1, working voltage: z: 36 v.Small z: 9 v.

2, current loop: two wire 4.00 mA ~ 20.00 mA (+ / - 0.2%);

3, explosion-proof grade: ExiaIICT6 ExiaIICT1 (to 40 ℃ ~ 70 ℃) to 5 (- 40 ℃ ~ 85 ℃);

4, the explosion parameters: Ui = 30 v, 2 = 100 ma, Pi = 0.75 m3 WCi = 100, Li = 10 uh solid state relay (each group) Ui = 30 v, 2 = 100 ma, Pi = 0.75 m3 WCi = 150, Li = 10 uh;

5, measuring range: 0 ~ 2200 mm;

6, measuring cycle: 0.5 seconds;

7, resolution: 0.01 mm;

8, temperature drift: + / - 0.05 mmMax (- 40 ℃ ~ 85 ℃);

9, working pressure: 40 mpa;

10, linear deviation: + (1 + 0.05% FS) mm;

11, medium temperature: 450 ℃;

12, environment temperature: - 40 ℃ ~ 85 ℃ (ExiaIICT1 - T5);

13, storage temperature: 55 ℃ ~ 100 ℃;

14, protection grade: IP67.

15, solid-state relay:

16, configuration: four groups SPST (NO) solid state relay;

17, load voltage: 220 vac / 30 VDC / 300 VDC (not explosion-proof) AC (explosion-proof place);

18, load current: 500 ma;

, 19, alarm mode: "alarm" optional five independent optional alarm mode;

20, delay time: 1 ~ 60 seconds, can be independent programming.

Six, installation steps:

When the drum level gauge has been installed, the air valve, hydraulic valve, drain valve is closed.

Please according to the following steps:

1, slowly open the liquid valve, observe carefully measuring cylinder, weld, flange "run, run, drip, leak" phenomenon.

2, level gauge preheating 2 0 minutes

3, slowly open the valve.

4, check the output 4-2 0 m whether A current signal in the normal range.

5, according to the need to open the drain valve, discharge measurement tube in cold water, sewage, to speed up the circulation and improve measure.

6, after waiting for the normal work of the level gauge, for measuring cylinder do heat preservation processing, this is helpful to improve the accuracy of measurement.

Seven, note:

1, the supplier with the product quality certificate and operation instruction, technical parameters, wiring diagram, production date, etc., please check carefully, lest use wrong.

2, when installation should be according to the product connection, check the site interface is consistent with the product.

3, this product is a precision instrument, banning free disassembly, collision, drop, play hard.

4, if discovery is unusual, in use should turn off the power and stop using, check, or directly to our technical department.

5 should be reply to the packing, transportation, storage, store in a cool, dry and ventilated warehouse.

6, the installation should pay attention to not put sensors in the process of using insulation broken.

7, install the scene to take effective lightning protection measures.

8, this series of any level gauge shell must be reliable grounding, grounding resistance less than 4 Ω.

9, using 485 communication network, the level must be equipped with safety deleting or separator.

10, according to the security gate flame-proof certification, its installation should be according to the requirements of the instructions.

11, when the transmitter is used to "0", to secure delete article 8.1 of the power supply of power transformers GB3836.4-2000 requirements.

Eight, the warranty terms:

Users in strict accordance with specifications, under the guidance of correct wiring, installation, maintenance, this product free warranty 1 year

The following situations to be outside the scope of warranty:

1, to remove the circuit board and various components.

2, lightning or high voltage into the system, circuit board burn out;

More than 3, power supply voltage limit, circuit board burn out;

4, power supply box into the water, or other foreign material;

5, correct selection range of the use of the product;

6, sensors or a certain parts of the machine or damaged that touch an injury;

7, not according to specifications correct installation, debugging, and failure to correct maintenance result in product damage or super poor.

Nine, selection of code:

Ten, design selection and ordering information:

1, model specifications: ZW - BGL series;

2, the name of the measured medium, medium density;

3, measurement range, can also be referred to as the nominal length;

4, work pressure, work under pressure;

5, working temperature: measuring the temperature of the liquid;

6, material requirements: liquid material;

7, whether matching supply flange, bolts, nuts, valves, fittings, such as sealing washer;

8, flange standard: nominal size of the flange, 3/4 ", DN25, (, DN80, DN100 or 6;

9, special requirements: before ordering, please indicate in detail.

After-sales service commitment:

Level 1, I companies sell products within twelve months appear quality problem, is responsible for free maintenance.

2, the warranty period, any quality problems such as the products of our company, my company is responsible for free repair or replacement.

3, the warranty period, such as user improper use, damaged products, my company is responsible for the maintenance, charge damage parts cost.

4, after the warranty period appear quality problem, my company is responsible for the maintenance, charge damage parts cost.

5, such as user need to my company site services, to users in the province I company service personnel to reach the site within 12 hours, fujian association of foreign languages and user reach the site within 48 hours.