PT1000 vs PT100 1/30B level sensors: How to choose industrial temperature measurement? This article explains it thoroughly! How to translate

PT1000 vs PT100 1/30B level sensors: How to choose industrial temperature measurement? This article explains it thoroughly!
How to translate
How many precision anxieties have you experienced in industrial temperature measurement? ​
In semiconductor manufacturing workshops, temperature fluctuations of ± 0.5 ° C can lead to a 5% decrease in wafer yield; In chemical reaction vessels, overheating by 1 ° C may trigger a chain reaction - the "accuracy tolerance" of industrial temperature measurement is always zero. But when faced with two types of high-precision sensors on the market, PT100 1/30B and PT1000 1/30B, many engineers will ask:
Why is the price difference of 20% when both are labeled as' 1/30B level '? Which one should I choose? ”
This article combines the IEC 60751 standard and 10+industry customer test data to help you thoroughly solve the selection problem from three dimensions: "technical differences → scenario adaptation → cost considerations".

1、 The core pain point of industrial temperature measurement: balancing accuracy and cost
1.1 Temperature accuracy requirements for industrial scenarios
Temperature measurement in the industrial field has never been "just about the same":
Semiconductor: The curing temperature of photoresist should be controlled within ± 0.3 ° C;
Chemical industry: Temperature fluctuations in catalytic reactions exceeding ± 0.5 ° C can lead to a 10% decrease in product purity;
Food processing: The temperature deviation for pasteurization is ± 1 ° C, which may cause food safety issues.
The common requirement for these scenarios is to have both high precision and stable reliability - which is the core value of 1/40B level sensors.
1.2 1/30B level: Not all "B-levels" are the same
According to the IEC 60751 standard, the accuracy levels of platinum resistors are divided into A, B, 1/3B, 1/10B, 1/30B, etc. among which
Ordinary B-level: 0 ° C~100 ° C error ± 0.3 ° C, full range error ± 0.6 ° C;
1/40B level: 0 ° C~100 ° C error ≤± (0.3+0.005 × | T |) ° C (T is the temperature value), full range error is only ± 0.5 ° C - accuracy improvement of 20%, more suitable for wide temperature range scenarios.
Simply put, 1/40B level is the "top student in B-level", suitable for industrial scenarios with higher precision requirements.

2、 What are the essential differences between PT1000 and PT100 1/30B levels? ​
2.1 Resistance Base: The Key to Determining Signal Stability
The core difference between PT100 (100 Ω) and PT1000 (1000 Ω) lies in the resistance base of the platinum resistor:
PT1000: High resistance value means "less interference from wire resistance" - for example, a 100m long copper wire with a resistance of about 0.1 Ω contributes 0.1% to the measurement error of PT100 and only 0.01% to PT1000;
PT100: Low resistance is more suitable for "short distance, low-cost" scenarios, such as temperature monitoring of small devices.
2.2 Application scenarios: Long distance vs compact space
Scenario recommendation model reason: Long distance pipeline temperature measurement PT1000 reduces wire resistance error and ensures accurate end data. Small equipment temperature monitoring PT100 has a small volume and a 15%~20% lower cost of supporting circuits. High temperature furnaces (>200 ° C) PT1000 have better resistance stability at high temperatures, with a drift rate lower than PT100. Third, measured data: Why is PT1000 more suitable for industrial scenarios? ​
We conducted comparative tests at a certain automotive parts factory:
Environment: Workshop temperature of 25 ° C, wire length of 150m;
• Result:
PT100: Measurement error ± 0.4 ° C (wire resistance contribution of 0.1 ° C, sensor drift of 0.3 ° C);
PT1000: Measurement error ± 0.1 ° C (wire resistance contribution 0.01 ° C, sensor drift 0.09 ° C).
Factory engineer feedback: "After switching to PT1000, the qualified rate of heat treatment temperature for engine cylinder blocks has increased from 92% to 98%, reducing waste losses by 80000 yuan per month. ”

Conclusion: Choosing the right sensor makes industrial temperature measurement more worry free

Choose PT1000 1/30B level: If your scene is "long-distance, high interference, high temperature";
Choose PT100 1/30B level: If your requirements are "low cost, compact space, short distance".
No matter which one is chosen, a precision of 1/30B is the "safety line" for industrial temperature measurement - after all, temperature error is never a "small matter".
FAQ: The 5 Most Concerned Questions for Engineers
1. How much is PT1000 more expensive than PT100? ​
A: The unit price is 10% to 15% higher, but in the long run, the reduced waste losses far exceed the cost difference.
2. Q: Does 1/30B level require additional calibration? ​
A: No need - our products have undergone three-point calibration from -50 ° C to 350 ° C before leaving the factory, in compliance with ISO 17025 standard.
3. Q: Can PT1000 be used in an environment of -70 ° C? ​
A: Sure - our PT1000 1/30B class operates within a temperature range of -70 ° C to+350 ° C.
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Xi'an Tongzida Technology Co., Ltd. is a leading manufacturer and supplier of advanced thermistor technology, dedicated to providing high-performance temperature sensors for demanding industrial applications. We have comprehensive expertise in microsensor manufacturing technology, special packaging technology, and multi-sensor integration methods to ensure excellent performance and reliability of thermistors. As a trusted supplier of precision temperature measurement solutions, we offer a complete thermistor system, including core sensitive chips, testing systems, and analysis software. Please contact our technical experts sales11@xatzd.com Discuss your specific thermistor requirements and learn how our advanced resistor temperature optimization and manufacturing capabilities can improve the performance and reliability of your temperature measurement system

References

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1. IEC 60751:2008 standard for industrial platinum resistance thermometers;
2. Optimization Report on Heat Treatment Temperature Control of a certain automotive parts factory;
3. Siemens' "Industrial Temperature Sensor Selection Guide".