Integrated temperature transmitter

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ZW-SBWR/Z series Integrated temperature transmitter The temperature field mounted transmitter unit, …

Productoverview:
ZW-SBWR/Z series Integrated temperature transmitter The temperature field mounted transmitter unit, and supporting the use of industrial thermocouple, thermal resistance, it uses a two-wire transmission mode (two wires as a common transmission line power input and output signal). The thermocouple and thermal resistance signal and the input signal into a linear or 4-20mA 0-10mA, and the temperature signal output signal. Temperature is the product of modern industrial and Scientific Research Institute of temperature measurement and control updates are essential products distribution system, digital bus system.

Two, Working principle：
ZW-SBWR/Z series Integrated temperature transmitter The thermocouple or RTD temperature sensor will be converted into electrical signals, and then enter the network sends the signal to the transmitter, the network including circuit zero and thermocouple compensation. After the signal is amplified to zero after the signal input to the amplifier, amplification of the signal through the V/I converter is calculated after treatment with 4 - 20mA DC current output; the other path through a A/D converter after processing to meter display. Linear transmitter circuit has two kinds, are used in feedback mode. The thermal resistance sensor, with positive feedback correction mode of thermocouple sensor, adjusted by the multi segment approximation method.
Three, application:
ZW-SBWR/Z series Integrated temperature transmitter To form an integrated structure with the junction box can be directly installed in thermocouple and thermal resistance in the. It is a new generation instrument can be widely used in metallurgy, petroleum, chemical, electric power, light industry, textile, food, national defense and scientific research and other industrial sectors.
Four, main features:
1, ultra small (44 x 18 integration module), strong versatility.
2, two-wire 4~20mA DC output. The transmission distance, strong anti-interference ability.
3, cold end, temperature drift, non linear compensation.
4, high precision, good long-term stability.
5, the internal temperature module using epoxy resin pouring process, suitable for all kinds of bad and dangerous places.
6, the integration of design, simple and reasonable structure, can directly replace the general assembly type thermocouple and thermal resistance.
7, mechanical protection IP65.
8, the thermocouple temperature change, with the compensation wire can reduce costs.
9, LCD, digital tube, etc. the pointer indication function to facilitate on-site monitoring timely.
10, the ambient temperature of >70 DEG C, transmitter and field display instrument using separation (isolation) installation.
11 grade: dIIBT4, dIIBT5, explosion-proof.
12, protection grade: IP54.
Five, technical parameters:
1, input signal: K, E, thermocouple: J, B, S, T, N., Cu50, Pt100 thermal resistance: Cu100 (three wire, four wire).The input signal of intelligent temperature transmitter through the handset and PC machine set;
2, the output signal output: 4 20mA DC signal in the range, linear or linear with temperature and the input signal thermocouple or rtd. Intelligent temperature transmitter output signal and DC superposition with 4 - 20mA with HART standard communication protocol; intelligent flow totalizer isolation type temperature transmitter: isolated input and output isolation voltage 500V, increase the ability of anti common mode interference, and more suitable for the use of computer networking;
3, basic error: 0.5%FS, 0.2%FS, intelligent 0.2%FS;
4, connection mode: two-wire, three wire, four wire;
5, display: four LCD display intelligent temperature field, four LCD PC through the handset or set to display the temperature sensor, the output current value, and the percentage of any of the parameters;
6, working voltage: common type 12V-35V, intelligent 12V-45V, rated voltage of 24V;
7, allow the load resistance: 500 ohm (24VDC power); limit load resistance R (max) = 50 (Vmin-12), such as the rated voltage 24V, intelligent flow totalizer load resistance can be chosen in the range of 0-600.
Six, work environment:
1, the ambient temperature -25-80 C (conventional type);
2, relative humidity: 5%-95%;
3, mechanical vibration amplitude of F is less than or equal to 50Hz, less than 0.15mm;
4, non corrosive gases or similar environment;
5, the environmental impact factor: Delta C = 0.05%/.
Seven, installation notes:
1, used in explosion hazardous areas, please note that the explosion-proof mark and protection grade;
2, the installation environment must be at -20-+70 DEG C, when the ambient temperature is too high, SBWZ/R signal converter and display module with thermal resistance or thermocouple separation installation. Our factory is equipped with separate special explosion-proof box installation transmitter.
3, before power, please carefully check the power of the positive and negative polarity, can not take the wrong, otherwise it may cause unpredictable consequences.
4, SBW signal converter module is sealed by epoxy resin curing, to strengthen its shockproof performance, and moisture proof, corrosion proof.
5, temperature transmitter after six months of use to check.
Eighth, calibration method:
1, equipment requirements: a digital voltage meter;
2, according to the system wiring connection method;
According to 3, indicated on the nameplate and transmitter sensor range, the corresponding input value, the output of 1V and 5V (respectively, the zero point adjustment potentiometer and full potentiometer);
4, according to the amount of ten points each input resistance value, check whether the output precision temperature range;
5, according to the specification of technical indicators of the test, should meet the technical requirements.

Nine, matters needing attention:

1, used in explosion hazardous areas, please note that the explosion-proof mark and protection grade;

2, the installation environment must be at -20-+70 DEG C, when the ambient temperature is too high, SBWZ/R signal converter and display module with thermal resistance or thermocouple separation installation. Our factory is equipped with separate special explosion-proof box installation transmitter.

3, before power, please carefully check the power of the positive and negative polarity, can not take the wrong, otherwise it may cause unpredictable consequences.

With epoxy curing module 4, a signal converter, in order to strengthen the shockproof performance, and moisture proof, corrosion proof.

5, temperature transmitter after six months of use to check.

Ten, measuring range: 

Eleven, the selection of encoding:

Ten Two, Design selection and ordering information:
1, special specifications in order by mutual decision.
2, according to the needs of users with the corresponding protection tube material. Such as corundum tube or high aluminum protection tube.
3, if you have any special requirements please specify when ordering. 
Customer service service commitment:
1, my company sold Zhongwei Temperature transmitter series The product within twelve months of quality problems, responsible for free maintenance.
2, the warranty period if the products of our company have any quality problems, our company is responsible for free repair or replacement.
3, the warranty period if the user use undeserved, cause damage to the product, our company is responsible for the maintenance, collect the damaged parts cost.
4, after the warranty period of product quality problems, our company is responsible for the maintenance, collect the damaged parts cost.
5, if the user needs to our service, our company in the province of the user service personnel arrived at the scene within 12 hours, arrived at the scene 48 hours outside users.