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| Categories | Temperature Transmitter |
|---|---|
| Brand Name: | QINWEIYB |
| Model Number: | QW-SLS72 |
| Certification: | Safety certificate |
| Place of Origin: | China |
| MOQ: | 1Set |
| Price: | Negotiable |
| Payment Terms: | L/C,D/A,Western Union,T/T,D/P |
| Supply Ability: | 100PCS/Month |
| Delivery Time: | 5-8 work days |
| Packaging Details: | Carton |
| Sampling Frequency: | 0.5S, 1S, 2S configurable |
| Function: | Self-diagnostics function |
| Single Gross Weight: | 4KG |
| Nema: | 4X |
| Thread Connection Type: | 1/2NPT or 1/4NPT |
| Input Type: | RTD, thermocouple, mV, ohm |
| Thermal Color Palettes: | Other |
| Calibration: | Factory calibrated |
| Operation Temperature: | 50°C |
| Customized Support: | OEM, ODM |
| Company Info. |
| Xi 'an Qinwei Instrument Factory (General Partnership Enterprise) |
| Verified Supplier |
| View Contact Details |
| Product List |
Suitable For High Voltage Strong Interference Isolation Temperature Transmitter
Isolated temperature transmitter is a type of temperature transmitter that adopts electrical isolation technology among the input circuit (sensor side), output circuit (control system side), and power supply circuit, suitable for high-voltage, strong-interference or high-risk environments.
| Isolation Type | Working Principle | Characteristics and Applications |
|---|---|---|
| Photoelectric Isolation | Utilizes optocouplers. Electrical signals drive LEDs to emit light, and photosensitive devices receive the light signals and convert them back into electrical signals. The conversion from electrical to optical and then back to electrical achieves electrical isolation. | Most commonly used. Moderate cost, high bandwidth, and good reliability. Suitable for the isolation of most temperature signals. |
| Electromagnetic Isolation (Transformer Isolation) | Utilizes miniature transformers. Energy and signals are transferred through magnetic coupling. Input signals need to be modulated (such as frequency modulation) first, and then demodulated at the output end. | High precision, excellent linearity, and low temperature drift. Commonly used in applications with extremely high precision requirements (such as Pt100), but relatively high cost and larger size. |
| Capacitive Isolation | Utilizes high-performance isolation capacitors to couple high-frequency signals. | High integration, often used in chip-level designs, and commonly found in modular transmitters. |
Isolated temperature transmitters are the "signal doctors" and "system bodyguards" in industrial measurement systems. Their core value lies in providing system-level reliability and safety guarantees. When the application scenarios involve high voltage, complex grounding, strong interference or high-risk environments, isolation is no longer an "optional feature", but a "necessary condition".
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