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Pressure Controller - DYCK

pressure controller;used in water system of central air-condition to control the pressure differential between the pipe of water - more info check here: http://www.buymeasuringtools.com/Pressure-Controller-10065640/

Quick Brief

Place of Origin: Shaanxi China (Mainland) Brand Name: Ding Xing Model Number: DYCK Pressure Controller: Pressure Controller

Product Features:

pressure controller;used in water system of central air-condition to control the pressure differential between the pipe of water

Business Terms:

Port: shenzhen/tianjin/guangzhou

Minimum Order Quantity: 10 Unit/Units

Supply Ability: 1500 Unit/Units per Month

Payment Terms: L/C,D/A,D/P,T/T,Western Union

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Pressure Controller
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Product Packagings & Delivery Terms:

Packaging Detail: standard factory packages

Delivery Detail: 5-7 working days

Specifications and Product Details:

pressure controller

For use with fluorinated refrigerants as well as with air and liquid;

Summarize
DXWK Intelligent temperature controller, Is this company in absorbing domestic and foreign latest CNC technology, according to the actual needs of the heating industry, and national research institutes, universities and developed to bring communication interface thermostat device, its greatest features:uses the belt photoelectricity isolation of RS-485 communication interface, control instrument for both DCS distributed control system with networking, as the system of a sub-station for; and without communication interface for occasions of independence as DDC temperature control system. Its measurement and control of high precision, stable and reliable running, convenient on-site operation.

Application
Steam-water,water-water heat exchanger temperature control
Bathroom,bath water temperature control
Central air conditioning circulating water temperature control system
The wind of fresh air temperature control unit
Air handling unit air temperature control

Product structure
1,Temperature sensor (platinum resistance:acquisition transmission temperature signal).
2,Controller (DXWK type constant temperature smart controller:1 set, display the temperature, the valve to open degree2, self diagnosis3, and the main station to communicate to the actuators action directive issued ).
3,Implementing agencies (electric regulating valve: instructions by the controller control valve to open degree, and the valve position signal feedback to the controller). Working principle

Installed in a pipe or tank, heat exchanger outlet temperature sensor, the acquisition of medium temperature signal sent to the controller through the A/D conversion, change of temperature signal and set signal comparison, forming a "positive" and "tolerance" or "zero tolerance", according to the nature of bias and trends, the controller issued to implement the "open" and "off" and "stop" command, driven by electric regulating valve of single-phase reversible motor driven valve core direction to controllers directive, thus adjusting the displacement of htm or purpose of the refrigerant flow size so that the media temperature control in the set value. The position of the actuator on the sender, according to the core of the displacement value, generate the corresponding position signal feedback to the controller, and through the use of LED display. Based on the control device (slave) and DCS distributed control system of the main station between RS-485 communication rules, information and data through a serial cable to the main station and from the station pass, between the main station you can stay informed about the status of the work from the station, and may issue an order to execute from the station, then the control device (slave) and the main station to achieve the medium temperature control

Main functions and product features
1,Main function
(1) Control instrument according to actual needs to set the temperature and the actual temperature of continuous detection, temperature values shown by LED .
(2) When the actual temperature and temperature exist positive and negative deviations, the controller will by PID fuzzy control mode, + to control electric control valve to open degree, get media flow, valves of instant on and off valve of the whole process, through the LED indicates the .
(3)With manual/automatic,cold/warm switching control.
(4)The more the temperature limit or control device failure,audible and visual alarm
(5) Self diagnosis function: a power interruption line, PT; b, valve position feedback signal interruption; C, valve is locked .These failures, the controller's display are given text instructions and issue a sound and light alarm, troubleshooting, troubleshooting instructions and sound and light alarm automatically disappear .
(6) Control instrument built-in EEPROM circuits, power-down after the set parameters are missing, and have a watchdog circuit, the system has a strong anti-interference ability.
2,Features
(1) Control instrument can separate self-contained DDC temperature control system, will be the main stations DCS distributed temperature measurement system .
(2) High precision, high stability components, standard switching power supply, ensure system stability .
(3) Modern surface technology on the box, circuit boards, components and special handling, dampproof, dustproof and shockproof, ensure the control instrument with high reliability .
(4) The control device can also complete the multi-media sampling and temperature control.
(5) Product after 1 week aging test strictly,the user can use the long-term power
Technical specifications
(1) Control temperature range:0°C~200°C

(2) The ability to control the hot water :1T/H~700T/H(T/h)
(3) Temperature indicating accuracy:1.0

(4)Control sensitivity;≤±0.5

(5) Network transmission distance: class I, 1200 metres (100K baud rate); class II, 15 km (9600 baud rate belt-driven transmission)

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