First, an overview
UDZ series electric contact water level meter, mainly used for boiler drum level, heater, deaerator, evaporator and boiler
Water level measurement of starting separator, water tank, etc.. The device is composed of a measuring cylinder and two instruments. Using digital display and Qi Hongshui
Green dual color LED display liquid level.
Two, the characteristics and technical parameters of the 1 Characteristics of the instrument:
With flash, sound alarm function.
4-20mA signal output, can be connected to the DCS system, with the protection of interlocking output function.
With self power supply function, can continue to work for 4 hours after power off.
The instrument is equipped with three buttons, a alarm button button, C silencing, B emission detection.
2 technical parameters:
The electric blow? Bartholomew 220V + 10%, 50Hz stem?
Working environment temperature: -10-45
The relative humidity is less than 85%.
The liquid water resistance range: 0-500K.
The relay output contact capacity: 220V, 3A
The water level display points: 5-19 (up to 38)
For example, 19 points: 0, + 15, + 30, + 50, + 75, + 100, + 150, + 250, + 300
The size: 800mm * 160mm * 300mm * 76mm installation size: 15mm
The power: less than 5W Click
Sketch of 1 measuring cylinder structure three, measuring tube, electrode and technical parameters
click to enlarge
2 measuring tube manufacturing standard
Manufacture, production and inspection of technical conditions of electric contact level gauge for JB/T6691-93 boiler in accordance with national machinery industry standard.
3 electrode (electric contact) using ultra pure ceramic manufacturing. The structure is divided into two types: compression and screw type
click to enlarge
4 technical indicators:
Working pressure: 1.6, 2.5, said in 4, 6.4, 10, 12, 16, 22MPa: 500M insulation
Working pressure: 21.56MPa can measure the center distance: 2200mm
Operating temperature: 372 C 5 electrode shape
Model specification and measurement tube installation form model specification and measuring tube installation form
DJM1615-115 M16 * 1.5 * 115 DJY2212-115 external screw type with 22 * 12 * 115 is pressed
DJM1615-97 M16 x 1.5 x 97 x 12 x 22 DJY2212-87 Phi Phi 87
DJM1615-87 M16 x 1.5 x 87 x 12 x 20 DJY2012-87 Phi Phi 87
DJM1815-115 M18 x 1.5 x 115 x 12 x 17 DJY1712-115 Phi Phi 115
DJM1815-87 M18 x 1.5 x 87 x 12 x 17 DJY1712-87 Phi Phi 87
Four, working principle
The electric contact water level gauge is designed according to the difference between the water and the steam resistivity. The electrode of the measuring tube is small in water. The large impedance of the cylinder in steam.
With the change of water level, the number of electrodes in the water is changed. Converted to resistance? Files to seek and to sit tight steal banana 4 I dive, from the Commission Di sunburn is bad South allows to do. A lot of to sit tight.; (AQT) skirt Delta. Click to see a larger image
Five, notice please have the following user accounts:
1 instrument model
2 point distribution data and alarm point location
3 the center distance of the steam pipe
4 working pressure, working temperature
5 interface connection (flange or welding)
My company mainly produce and sell: pressure transmitter, liquid level transmitter, temperature transmitter, no paper recorder, electric contact water level gauge, measuring boiler drum liquid level meter, signal isolation, isolation distributor, ultra pure alumina water level gauge, ceramic electrodes, drum electrode, a water level electrode, vortex flowmeter, electromagnetic flowmeter, inspecting instrument,
