Product description:

I. overview

UDZ-10-21/ type electric contact double color level meter, mainly used for a variety of high and low water level, heater, deaerator, evaporator and row water tank water, liquid level measurement, compared with similar products and has the advantages of simple operation, long service life, high safety factor.

Two, structure

The water level gauge is mainly composed of a measuring cylinder, ceramic electrode, steam, water blue, two instruments etc..

Three, the principle structure

Structural schematic diagram of measuring cylinder

Four, working principle

The instrument by using the characteristic conductivity difference of boiler water and steam are measured, due to the change of liquid level to the electrode immersed in water, part of the electrode placed in steam, boiler water electrodes immersed in the cylinder and the impedance decreases, the impedance of the electrode in the steam cylinder. Using this feature, the non electric water level can be converted into electricity, intelligent two meters, so as to achieve the water level display, alarm, protection, chain function.

The use of single-chip microcomputer control, through the use of the hardware watchdog can be automatically reset when running in the microcontroller program to ensure that the instrument working condition is more secure and reliable. At the same time, the thermal steam red, water used to mark the double color synthesis column, visually display the steam and water level.

Five, characteristics

1 the use of red, green double color synthesis column display level, red digital display level coordinates, solves the operator to monitor the running state of eye fatigue, intuitive and clear visual effect.

2 has the alarm alarm (sound) (relay output), silencing, self-test, screening function. Compared with the old two meters, the utility model has the advantages that the operation is more convenient and intuitive, and the alarm value can be set more than once.

3 based on the characteristic of CMOS high input impedance, current signal input circuit only weak through the electrode, can reduce the chemical corrosion electrode to a minimum, therefore, the two meter could more significantly prolong the service life of the electrodes.

4 by fuzzy control, according to the electricity and water resistance threshold of different water quality automatic electrode regulator, to the needs of different applications.

Six, technical parameters

Measuring tube technical parameters

Product type: UDZ-10-21/

Working pressure: ≥ 2.5Mpa≤ 32Mpa

Tube specification: Φ 89× 12; Φ 108×

Connecting pipe specification: Φ 38× 5

Blowdown pipe specification: Φ 28× 4 20G

Electrode installation: divided into two types

Two meter technical parameters

Working environment:

Ambient temperature: -10 C ~ +45 C

Relative humidity: 80%.

Power supply: 220VAC± 10%, 50Hz current 1A

Power consumption: 10VA

Measured liquid impedance conditions: 0 ~ 90KΩ

Installation: vertical disc

Dimensions: 280*80*160 (mm) (L * w * h)

Instrument panel opening size: 152*76 (mm)