SBWZ PT100 thermal resistor intelligent digital display threaded flange

Product Overview:

The SBW series temperature transmitter module produced by HY is an integrated transmitter with 24V power supply and two-wire system. The product adopts imported integrated circuits to amplify the signals of thermal resistors or thermocouples and convert them into 4-20mA or 0-10mA output current, or 0-5V output voltage. The armored transmitter can directly measure the temperature of gases or liquids, and is particularly suitable for low-temperature range measurement, overcoming the influence of condensed water on temperature measurement

Product features:
The SBW series temperature transmitter module produced by HY has the following characteristics: can be directly installed in the sensor junction box, accurate signal, can be transmitted remotely (up to 1000M), high accuracy, anti-interference, good long-term stability, and maintenance free. The SBW series temperature transmitters produced by HL have been widely used in various fields of industrial control.

Technical Specifications:

Overview:

SBW typeIntegrated digital temperature transmitterIt is a combination of temperature sensors and transmitters, which converts temperature signals within the range of -200~+1600 ℃ into a two-wire 4-20mA DC electrical signal in a very simple way and transmits it to display instruments, regulators, recorders, DCS, etc., achieving accurate measurement and control of temperature. The integrated digital temperature transmitter is an updated product for temperature measurement and control in modern industrial sites and research institutes. It is a product of distributed systems and digital bus systems.

Application scope:

SBW type integrated digital temperature transmitterIt can be directly installed in the junction box of thermocouples and thermal resistors to form an integrated structure. As a new generation of temperature measuring instrument, it can be widely used in industrial sectors such as metallurgy, petroleum, chemical, power, light industry, textile, food, national defense, and scientific research.

Working Principle:

SBW typeIntegrated digital temperature transmitterThermocouples or thermal resistance sensors convert the measured temperature into electrical signals, which are then sent to the input network of the transmitter. This network includes relevant circuits such as zeroing and thermocouple compensation. The zero adjusted signal is input to an operational amplifier for signal amplification. The amplified signal is then processed by a V/I converter and output as a 4-20mA DC current; The other path is processed by an A/D converter and displayed in the header. There are two types of linearization circuits for transmitters, both of which use feedback methods. For thermistor sensors, calibrate using positive feedback method, and for thermocouple sensors, calibrate using multi segment line approximation method. The integrated digital temperature transmitter has two display modes. The temperature transmitter for LCD display outputs using a two-wire system, while the temperature transmitter for LED display outputs using a three wire system.

Integrated digital temperature transmitterTechnical Specifications:

1. Input signal: Thermocouples: K, E, J, B, S, T, N. Thermal resistance: Pt100, Cu50, Cu100 (three wire system, four wire system). The input signal of the intelligent temperature transmitter can be set arbitrarily through a handheld device and a PC;

2. Output signal: Output a 4-20mA DC signal within the range of measurement, which is linear with the input signal of the thermocouple or thermistor or linear with temperature. The intelligent temperature transmitter outputs a 4-20mA DC signal and superimposes it with communication in accordance with the HART standard protocol; Isolated temperature transmitter: Input and output are isolated, with an isolation voltage of 500V, which increases the ability to resist common mode interference and is more suitable for networking with computers;

3. Basic error: 0.5% FS, 0.2% FS, intelligent 0.2% FS;

4. Wiring methods: two-wire system, three wire system, four wire system;

5. Display mode: Four digit LCD displays the on-site temperature, and the intelligent four digit LCD can be set through a PC or handheld device to display any of the parameters such as on-site temperature, sensor value, output current, and percentage;

6. Working voltage: Ordinary model 12V-35V, intelligent model 12V-45V, rated working voltage is 24V

7. Allowable load resistance: 500 Ω (24VDC power supply); The maximum load resistance R (max) is 50 (Vmin-12). For example, at a rated operating voltage of 24V, the load resistance can be selected and used within the range of 0-600 Ω.

8. Work environment:

a: Environmental temperature -25-+80 ℃ (conventional type); -25-+70 ℃ (digital type); -25+75 ℃ (intelligent type).

b: Relative humidity: 5% -95%;

c: Mechanical vibration f ≤ 50Hz, amplitude ≤ 0.15mm;

d: No corrosive gas or similar environment;