Product Features
|
Parameter Category |
Specific Parameter Details |
|
Accuracy Class |
Class A |
|
Protection Tube Material |
Stainless Steel 1Cr18Ni9Ti |
|
Index Range |
-200~850℃ |
|
Applicable |
Oxidizing, Neutral, Vacuum |
|
Temperature Measurement Tolerance (℃) |
Class A: ±(0.15 + 0.2%t) Class B: ±(0.30 + 0.5%t) |
|
Basic Error of R₀ (Ω) |
Class A: 100±0.06 Class B: 100±0.12 |
|
Temperature Measurement Range (℃) |
Class A: -30~300 Class B: -50~500 |
|
Notes |
Class A: -30~300 Class B: -50~500 Class A accuracy is not applicable to two-wire platinum resistance thermometers, and Class A accuracy is not suitable for PT100 platinum resistance thermometers above 650℃ |
|
Wiring Method |
2-wire, 3-wire, 4-wire |
|
Mounting Method |
Fixed-free mounting, threaded mounting, flange mounting, etc. |
Product Features
1.PT100 is the primary type of industrial temperature-measuring platinum resistance
thermometer. Wound with platinum wire, it can be used below 660℃; those adopting thin-film elements can be used below 600℃.
2.Wide temperature measurement range, high accuracy, good mechanical strength, and easy installation and operation.
3.Suitable for customized production with low cost.
4.Strong anti-interference ability: Insensitive to vibration and electromagnetic interference, ensuring accurate and reliable measurement data.
5.Diversified wiring solutions: 3-wire connection offsets the impact of lead wire resistance, while 4-wire connection is suitable
for high-precision laboratory/industrial measurement.
Application Scenarios
Industrial Automation: Temperature monitoring of chemical reactors, temperature
measurement of metallurgical furnaces, winding temperature measurement of power equipment (generators/transformers).
HVAC: Temperature control of central air conditioning water systems and fresh air systems, intelligent building temperature control.
Medical Equipment: Precision temperature detection of low-temperature refrigerators, sterilizers, and hemodialysis equipment.
Food Processing: Temperature monitoring of food cold chains, baking equipment, and pasteurization production lines.
Scientific Research & Experiments: Temperature measurement of laboratory high and low temperature test chambers and environmental simulation cabins.
Automotive Industry: Temperature monitoring of new energy vehicle battery packs and motor controllers.
Product Advantages
Leading Measurement Accuracy: Superior linearity compared with other metal resistors;Class A accuracy meets the requirements of high-end industrial measurement and control.
Strong Durability: Wear-resistant and corrosion-resistant protection tube adapts to harsh industrial environments with a long service life.
Flexible Customization: Customizable tube length, mounting method and junction box material according to customer needs to adapt to special scenarios.
Outstanding Cost-Effectiveness: Higher measurement accuracy in the medium and low temperature range compared with thermocouples;no cold junction compensation required, resulting in lower use cost.
FAQ
Q: What is the difference between PT100 and PT1000?
A: The core difference lies in the nominal resistance at 0℃. PT1000 has a nominal resistance of 1000Ω with higher sensitivity, suitable for ultra-low temperature measurement; PT100 features lower cost, ideal for
conventional industrial scenarios.
Q: What is the function of 3-wire and 4-wire connections?
A: 2-wire connection will cause errors due to the influence of lead wire
resistance; 3-wire connection can offset the impact of lead wire resistance; 4-wire connection adopts constant current source power supply, which completely eliminates lead wire resistance interference and is suitable for high-precision measurement.
Q: What precautions should be taken when using PT100 in high-temperature environments?
A: Select ceramic or high-temperature resistant alloy tubes for high-temperature applications; avoid long-term use above 650℃ to prevent oxidation failure of platinum wire; ensure good heat dissipation during installation to reduce temperature measurement lag.
Q: Why does PT100 measurement data drift?
A: Possible causes include corrosion or contamination of platinum wire, poor contact of wiring terminals, and element moisture due to damaged protection tubes. Regular calibration is required, along with inspection of wiring and tube integrity.
Types of Thermal Resistance Elements
| Element Type | Platinum Resistance (Pt100, Pt10, Pt500, Pt800, Pt1000) | ||||
|
Subtype
|
Mica Element
|
Ceramic Element
|
Quartz Element
|
Thick-Film Element
|
Thin-Film Element
|
|
Element Size
|
Φ5×75
Φ6×75
Φ8×75
|
1.2×25
1.6×25
2.2×20
3.2×20
4.0×40
|
3×30
4×35
5×40
|
25×3.2×0.8
18×2.2×0.8
15×2.8×0.8
7×4×0.8
Φ6×1.6
|
2.5×1.6×1.2
5×2×1.2
10×2×1.2
5×5×1.2
12.5×2×1.2
|
|
Maximum Temperature (℃)
|
420
|
650
|
850
|
600
|
500
|
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