Resistance Temperature Detectors
82Pages

closing the loop on thermal solutions Resistance Temperature Detectors INTRODUCTION For high-accuracy temperature measurements in a variety of industrial and commercial air and gas applications, Durex Industries offers RTD's of multiple elements and styles. Durex RTD's are available with an assortment of connections, mounting hardware, and enclosures to suit harsh chemical, immersion, and other heavy-duty requirements. Sealed leadwire transitions eliminate contamination. Multiple sensing elements can be located at various points for precise temperature control. Typical Applications: • Food Service • Semiconducting • Packaging • Hot Melt Dispensing • Vacuum Sealing and Forming • Automotive • Medical / Laboratory Settings Design Features: • Platinum, Nickel, or Nickel Iron elements • 2, 3, or 4-wire styles • High pressure applications up to 5000 psi • Optional sanitary-grade stainless steel hardware • Temperatures up to 1500°F (816°C) • Optional braiding or armor cable shielding 190 Detroit Street, Cary, Illinois 60013 • Phone: 847-639-5600 • Fax: 847-639-2199 • Web: www.durexindustries.com • TOLL FREE: 800-762-3468 Rev 1/28/15

Resistance Temperature Detectors SPECIFICATIONS Unless otherwise specified, Durex’s RTD assemblies include photo-lithographically structured, high-purity platinum thin-film elements laser trimmed to precise resistance values. These sensors feature brief response times, excellent long term stability, low self heating and excellent resistance to vibration and temperature shocks. Thermal Response Time The response time T0.63 is the time the sensors need to respond to 63% of the change in temperature. The response time depends on the sheath dimensions, but can be as low as 1.2 seconds. Long...

closing the loop on thermal solutions Resistance Temperature Detectors SPECIFICATIONS Temperature Characteristic Curve The temperature characteristic curve determines the dependence of the electrical resistivity on the temperature. The following definition of the temperature curve according to DIN EN 60751 standard applies: -200 to 0°C R(t) = R0[1+(A*t)+(B*t2)+C(t-100)t3] Platinum (3850 ppm/K): A = 3.9083 * 10-3 [°C-1] B = -5.775 * 10-7 [°C-2] C = -4.183 * 10-12 [°C-4] Platinum (3750 ppm/K): A = 3.9083 * 10-3 [°C-1] B = -6.01888 * 10-7 [°C-2] C = -6 * 10-12 [°C-4] R0 = Resistance value...

closing the loop on thermal solutions Resistance Temperature Detectors SPECIFICATIONSAvailable RTD Elements Code 3 Wire, Wheatstone Bridge Internal Wiring Diagram A B C A B One lead resistance is included in each of the two arms of the bridge. The errors reduce to Rlj - Rl2 4 Wire, Compensated Wheatstone Bridge In this type RL3 and RL4 appear in one arm ol the bridge. RLI and RL2 appear in the other. Errors are RLI+RL2-RL3-RL4 4 Wire, Connected High Impedance D-3 Voltage Measurement Errors can be made negligible by having a very high input impedance amplifier. Code Definitions "L"...

closing the loop on thermal solutions Resistance Temperature Detectors "L" Dimension "A” Dimension Table 5: Sheath Length ("L" Dimension) Specify in inches. See table on page 4 for codes. Specify in inches. See table on page 4 for codes. Sensors Part Number Sequence R1L-AB-4F100-100FCR R1L or R1M Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Sensor Type Element Wiring Sheath Sheath "L" Sheath "A" Lead Leadwire Terminations Fitting& Style No. Type Configuration Material Diameter Length Length Type Options 190 Detroit Street, Cary, Illinois 60013 •...

closing the loop on thermal solutions Resistance Temperature Detectors HIGH TEMPERATURE RTD WITH LEADWIRE Code Table 5: Sheath Length ("L" Dimension) Specify in inches. See table on page 4 for codes. Table 6: Lead Length ("A" Dimension) Specify in inches. See table on page 4 for codes. Sensors Part Number Sequence R1P-AA-4B09H-072ECR R1P - A A - 4 B 09H - 072 E C R R1P Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Sensor Type Element Wiring Sheath Sheath "L" Sheath “A' Lead Leadwire Terminations Fitting& Style No. Type...

closing the loop on thermal solutions Resistance Temperature Detectors RTD WITH FIXED FITTING "L" Dimension — Specify in inches. — (Enter 10H for 10 V") j~ Diameter_ "A” Dimension Specify in inches. (Enter 100 for 100") Code Table 5: Sheath Length ("L" Dimension) Specify in inches. See table on page 4 for codes. Code Table 6: Lead Length ("A" Dimension) Specify in inches. See table on page 4 for codes. Part Number Sequence R2P-EB-4V12F-018E1CC Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Sensors Sensor Type & Style No. Element Wiring Sheath Type Configuration Material Sheath Diameter 'L"...

closing the loop on thermal solutions Resistance Temperature Detectors Diameter - Specify in inches -(Enter 100 for 100") STYLE R3L, R3M or R3P R3L - Maximum Temperature 500°F R3M - Maximum Temperature 900°F R3P - Maximum Temperature 1200°F Crimp Adapter Standard Table 5: Sheath Length ("L" Dimension) Part Number Sequence R3L-BB-6F100-5 R3L - B B - 6 F 100 -5 Sensor Type & Style No. Element Type Wiring Sheath Configuration Material Sheath "L" Sheath Terminations Diameter Length 190 Detroit Street, Cary, Illinois 60013 • Phone: 847-639-5600 • Fax:...

closing the loop on thermal solutions Resistance Temperature Detectors RTD WITH TERMINAL HEAD Code Table 5: Sheath Length ("L" Dimension) Specify in inches. See table on page 4 for codes. Sensors Part Number Sequence R4L-EA-4C060-62ARR4L - E A - 4 C 060 - 6 2 A RR4L, R4M, R4P Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Sensor Type Element Wiring Sheath Sheath "L" Sheath Process Spring Terminal Fitting & Style No. Type Configuration Material Diameter Length Connections Loading Head Options 190...