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Capillary Type of Platinum Resistance Thermometer (CTPRT)

Sheath diameter : φ0.5 to 2.0mm
Platinum Resistance Thermometer (PRT)

In the past, 3.2mm or more diameter of PRT probes were the smallest, so thermocouples were used for the application, where small diameter probe was necessary. Thermocouples, however, are unstable of output (if a lot is different) and lower accuracy.
We have developed the extremely small 100Ω PRT elements, which can be set into φ0.5mm sheath pipe. Due to using PRT, higher stability, higher accuracy and fast response are realized (up to 350ºC). PRT is now available for wide application, instead of thermocouples. This capillary type PRT allows you to measure the temperature of the small place or the narrow space ACCURATELY.



Features
  1. The smallest Platinum wire wound RTD
  2. Small aging variation.
  3. Better Reproducibility at the measuring temperature
  4. Better sensitivity.
  5. Higher stability because of lower self-heating.
Specification
Resistance Pt100Ω (at 0ºC)
Class DIN/IEC A or B
Tolerance Class A : ±(0.15+0.002|t|), Class B : ±(0.3+0.005|t|)
Rated Current 0.5mA, 1mA
Temperature Range -200ºC to +200ºC (Max. 250ºC) / *500ºC(MI Cable type)
Temp. Coefficient R100/R0 = 1.3851
Stability Class A : ±0.15 or less, Class B : ±0.3 or less
Wire system 3-wire or 4-wire system
*φ1.0 and φ1.6 only

Response Time (Sec.)
0ºC to 100ºC in Air
Diameter 63.2% 90.0%
φ0.5 2.2 3.2
φ0.5 (TC-K) 3.0 4.5
φ1.0 4.0 8.0
φ1.0 (TC-K) 5.2 11.0
φ1.6 9.0 20.0
φ(TC-K) 7.0 23.5
0ºC to 100ºC in Water
Diameter 63.2% 90.0%
φ0.5 0.2 0.4
φ0.5 (TC-K) 0.1 0.3
φ1.0 0.5 1.5
φ1.0 (TC-K) 0.2 0.5
φ1.6 1.0 2.0
φ(TC-K) 1.5 1.0

Differece of Tolerance


Wide variety of PRT element. (Pt100Ω~)

When you send us your inquiry, please give us the following information.

Specification
  1. Number of Element : Single or Double
  2. Class : DIN/IEC A or B
  3. Temperature Range : ºC
  4. Excitation Current : mA
  5. Number of Wire : 3, 4, 6, or 8
Sheath (SS316)
  1. Diameter (mm) : D =
  2. Length (mm) : L =
Lead Cable
  1. Insulation Material : PVC, Teflon or Silicone
  2. Length (mm) : B =
Construction of our Model Number

Netsushin Co., Ltd.
2079-7, Kamitome, Miyoshi-machi, Iruma-gun, Saitama JAPAN
Phone : +81-49-259-0101, Fax : +81-49-258-2424
E-mail : eigyo@netsushin.co.jp
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