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| Categories | Temperature Transmitter |
|---|---|
| Brand Name: | QINWEIYB |
| Model Number: | QW-SLS75 |
| Place of Origin: | China |
| MOQ: | 1Set |
| Price: | Negotiable |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability: | 100PCS/Month |
| Delivery Time: | 5-8 work days |
| Packaging Details: | Carton or wooden box |
| Object Distance Ratio: | 20 : 1 |
| Calibration: | Factory calibrated |
| Length: | 140mm |
| Connector: | Thread |
| Material: | ABS |
| Conditions: | new and original |
| Charging Voltage: | DC5V |
| Turndown Ratio: | 100:1 |
| Storage Temperature: | -20~50℃ |
| Product Size: | 1/2 |
| Company Info. |
| Xi 'an Qinwei Instrument Factory (General Partnership Enterprise) |
| Verified Supplier |
| View Contact Details |
| Product List |
A thermistor temperature transmitter is an instrument that converts the resistance signal of a thermistor (such as NTC) which varies with temperature into a standard industrial electrical signal (such as 4-20mA) for remote transmission and processing.
To help you quickly understand its relationship with other common temperature transmitters, I have compiled a comparison table. You can see that each technology has its own "personality" and "battlefield".
| Comparison Dimension | Thermistor Temperature Transmitter (Your Focus) | Thermoresistance Temperature Transmitter (e.g. PT100) | Thermocouple Temperature Transmitter |
|---|---|---|---|
| Core Component | Thermistor (usually semiconductor ceramics) | Pure metals such as platinum, copper, and nickel | Circuit composed of two different metal wires |
| Temperature Coefficient | Has both negative temperature coefficient (NTC) and positive temperature coefficient (PTC) types | Positive temperature coefficient (PTC), with good linearity | Positive temperature coefficient (PTC), but with poor linearity |
| Typical Temperature Measurement Range | -80℃ to +300℃ (mainly NTC), PTC switching point usually between 60-120℃ | -200℃ to +850℃, wide coverage | -200℃ to +2000℃ and above, extremely wide range |
| Core Advantages | High sensitivity (large resistance change rate), fast response speed, low cost, insensitive to lead resistance (can use simple 2-wire system) | High accuracy, good stability, good linearity, and internationally recognized standardized calibration tables | High-temperature resistance, flexibility, durability, and relatively low cost |
| Core Limitations | Severe nonlinearity (exponential relationship), narrow temperature measurement range, poor consistency of components (less interchangeable than RTD) | Relatively high price (especially platinum resistance), slow response speed, self-heating effect exists | Low sensitivity (weak signal), requires cold junction compensation, slightly poorer long-term stability, and poor linearity |
| Best Application Scenarios | Home appliances, automobiles, electronic devices, laboratories, and other medium and low-temperature applications that require high sensitivity, cost-effectiveness, and fast response speed | Chemical, pharmaceutical, HVAC, industrial processes, and other general applications that require high accuracy and stability | Extremely high-temperature and harsh industrial environments suchs as metallurgy, kilns, and engine exhausts |
The thermistor temperature transmitter is a product that combines the high sensitivity and fast response of thermistor sensing with standardized and anti-interference transmitter technology. It is particularly suitable for temperature measurement scenarios where there are certain requirements for response speed and cost, and where standard signal output is needed.
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