Resistance Temperature Detectors

Transcription

1 Resistance Temperature etectors INTROUTION For high-accuracy temperature measurements in a variety of industrial and commercial air and gas applications, urex Industries offers RT s of multiple elements and styles. urex RT 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. esign 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 ) Optional braiding or armor cable shielding Typical pplications: Food Service Semiconducting Packaging Hot Melt ispensing Vacuum Sealing and Forming utomotive Medical / Laboratory Settings 1

2 Resistance Temperature etectors SPIFITIONS Unless otherwise specified, urex s RT 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 T 0.63 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 Term Stability The change of ohmage after 1,000 hours at maximum operating temperature amounts to less than 0.03%. Self Heating To measure the resistance, an electric current has to flow through the element, which will generate heat energy resulting in errors of measurement. To minimize error, the testing current should be kept low (approximately 1m for Pt-100). Temperature error ΔT = RI²/ with: = self-heating coefficient in mw/k R = resistance in kω I = measuring current in m The self-heating coefficient () for the standard elements used in urex RT assemblies is 4 mw/k in air and 40 mw/k in water. Measuring urrent Measurement current causes heating of the platinum thin-film sensor. The resulting temperature error is given by: ΔT = P/ with the power loss P = I 2 R, and the self-heating coefficient in mw/k. The amount of thermal transfer from the sensor in the application determines how much measuring current can be applied. There is no bottom limit of the measurement current with platinum thin-film. The measurement current depends highly on the application in use. We recommend at: 100Ω: typically 1m, maximum 5m 500Ω: typically 0.5m, maximum 3m 1000Ω: typically 0.3m, maximum 2m 2000Ω: typically 0.2m, maximum 1m Nominal Values The nominal or rated value of the sensor is the target value of the sensor resistance at 0. The temperature coefficient α is defined as α = R (K -1 ) and has the numerical value of K R 0 according to IN I R 0 R100 - R In practice, a value multiplied by 10 6 is often entered: TR = 10 6 x 0 x (ppm/k) R 0 In this case, the numerical value is 3850 ppm/k. 2

3 SPIFITIONS Temperature haracteristic urve Resistance Temperature etectors The temperature characteristic curve determines the dependence of the electrical resistivity on the temperature. The following definition of the temperature curve according to IN N standard applies: -200 to 0 R(t) = R 0 [1+(*t)+(*t 2 )+(t-100)t 3 ] 0 to 250 R(t) = R 0 [1+(*t)+(*t 2 )] 3 t[k] Platinum (3850 ppm/k): = * 10-3 [ -1 ] = * 10-7 [ -2 ] = * [ -4 ] 2 Platinum (3750 ppm/k): = * 10-3 [ -1 ] = * 10-7 [ -2 ] = -6 * [ -4 ] R 0 = Resistance value in ohm at 0 t = temperature in accordance with ITS 90 1 Y t[ ] Tolerance Field Tolerance lasses The temperature sensors are divided into classes according to their limit deviations: lass ± limit deviations in (K) IST designation Temperature range IN 60751, class x T -200 to 850 IN 60751, class x T -90 to 300 ⅓ IN 60751, class x T Y -50 to 150 T is the numerical value of the temperature without taking into account either negative or positive signs. Special selection of sensors upon request (pairings, groupings, special tolerances). alibration Services urex RT calibrations are fully traceable to the National Institute of s and Technology (NIST) and are useful for defining the exact temperature coefficient of the sensor. For sensor applications below 32 F (0 ), a cryogenic range calibration is recommended. ertificates are supplied with all calibrations. Printed tables of interpolated values are only supplied with cryogenic range calibrations. RT ssembly Temperature Ranges Style: R1L, R2L, R3L, R4L Style: R1M, R2M, R3M, R4M Style: R1P, R2P, R3P, R4P The maximum rated temperature for these four styles is 500 F. Typically they are constructed with Teflon leads and the lead end is protected with an epoxy seal. This epoxy seal provides a moisture resistant barrier. The maximum rated temperature for these next four styles is 900 F. They are constructed with high temperature fiberglass insulated conductors. The lead end is sealed and protected with a high temperature cement. The maximum rated temperature for these last four styles is 1200 F. Their construction features highly compacted magnesium oxide insulation. Nickel conductors provide for extended temperature ratings and harsh environments. 3

4 SPIFITIONS vailable RT lements Resistance Temperature etectors lement Temperature oefficient Tolerance at ohm Platinum % 100 ohm Platinum % 100 ohm Platinum % 500 ohm Platinum % 1000 ohm Platinum % F 2000 ohm Platinum % 100 ohm Platinum % H 100 ohm Platinum % J 120 ohm Nickel % K 604 ohm Nickel Iron % iagrams R T 2 Wire, Wheatstone ridge R L1 R L2 R 2 M R 1 R 2 The meter reads R T + the two lead resistances R L1 and R L2 4 Wire, ompensated Wheatstone ridge R L4 R L3 R L1 R L2 M Supply Supply In this type R L3 and R L4 appear in one arm of the bridge. R L1 and R L2 appear in the other. rrors are R L1 +R L2 -R L3 -R L4 R T 3 Wire, Wheatstone ridge R L3 R L1 R L2 M Supply One lead resistance is included in each of the two arms of the bridge. The errors reduce to R L1 - R L2 4 Wire, onnected High Impedance Voltage Measurement Supply rrors can be made negligible by having a very high input impedance amplifier. 5 Internal iagram F Wire 3 Wire Wire ompensated 4 Wire onnected efinitions L imensions imensions imensions L dimensions are specified in whole inches and a single alpha character which represents a fraction. nter the three digit code as follows: dimensions are specified in fractions from ⅛ to. Use the single alpha character to indicate the tip length. nter the code as follows: dimensions are specified in whole inches only. nter the three digit code as follows: Fractional imension Letter ¹/₁₆ ¹¹/₁₆ L ⅛ ¾ M ³/₁₆ ¹³/₁₆ N ⅞ P ⁵/₁₆ ¹⁵/₁₆ R ⅝ 10K ⅜ F S 4 ½ 04H ⅛ ⅝ K ⁷/₁₆ 0 No ⅜ 15F ¾ M ½ H Fraction 7 ⅞ 07P 17 ¾ 17M ⅜ F ⅞ P ⁹/₁₆ J 9 ⅝ 09K 22 ⅛ 22 ½ H S ⅝ K 4

5 Resistance Temperature etectors RT WITH LWIR L imension Specify in inches. (nter 10H for 10 ½ ) iameter imension Specify in inches (nter 100 for 100 ) Stripped STYL R1L R1M R1L - Maximum Temperature 500 F R1M - Maximum Temperature 900 F J K Table 1: lement 100 ohm urve lass Platinum 100 ohm urve lass Platinum 500 ohm urve lass Platinum 1000 ohm urve lass Platinum 100 ohm urve lass Platinum 120 ohm urve Nickel (R1L Only) 604 ohm urve Nickel Iron (R1L Only) Table 2: onfiguration Single, 2 Wire Single, 3 Wire (Minimum sheath diameter.156 ) Single, 4 Wire (Minimum sheath diameter.188 ) ual, 4 Wire (Minimum sheath diameter.188 ) ual, 6 Wire (Minimum sheath diameter.250 ) Table 3: Stainless Steel Stainless Steel 8 Inconel 600 V F Table 4: iameter.125 or ⅛ O or ⁵/₃₂ O or ³/₁₆ O or O or ⅜ O.. Table 5: ( L imension) Table 6: Lead ( imension) F J K M Table 7: Leadwire Stranded Fiberglass Singles Stranded Fiberglass with Overall Fiberglass Jacket Stranded Fiberglass with Stainless Steel Overbraid Stranded Fiberglass with Stainless Steel rmor Stranded Mica/Fiberglass Singles Stranded Teflon Singles (R1L Only) Stranded Teflon with Overall Teflon Jacket (R1L Only) Stranded Teflon with Stainless Steel Overbraid (R1L Only) Stranded Teflon with Stainless Steel rmor (R1L Only) PV with Mylar Shield (R1L Only) Table 8: Terminations 0 Split nds 1 #6 Spade Lug 2 X onnector with #6 Spade Lug 3 Plug ³/₁₆ Quick isconnect ³/₁₆ Quick isconnect, Insulated Quick isconnect Quick isconnect, Insulated M Mini Plug Table 9: Fitting Options 0 No Fitting N ⅛ NPT ompression, rass P ⅛ NPT ompression, Stainless Steel R NPT ompression, rass S NPT ompression, Stainless Steel V ½ NPT ompression, Stainless Steel Part Number Sequence R1L--4F FR R1L F F R R1L or R1M Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Sensor lement onfiguration iameter L Lead Leadwire Terminations Fitting Options 5

6 HIH TMPRTUR RT WITH LWIR Resistance Temperature etectors imension Specify in inches. (nter 100 for 100 ) L imension Specify in inches. (nter 10H for 10 ½ ) Stripped STYL R1P R1P - Maximum Temperature 1200 F ia. rounded Junction Table 1: lement Table 7: Leadwire 100 ohm urve lass Platinum Stranded Fiberglass Singles 100 ohm urve lass Platinum Stranded Fiberglass with Overall Fiberglass Jacket 500 ohm urve lass Platinum Stranded Fiberglass with Stainless Steel Overbraid 1000 ohm urve lass Platinum Stranded Fiberglass with Stainless Steel rmor 100 ohm urve lass Platinum Stranded Mica/Fiberglass Singles Table 2: onfiguration Single, 2 Wire Single, 3 Wire (Minimum sheath diameter.156 ) Single, 4 Wire (Minimum sheath diameter.188 ) ual, 4 Wire (Minimum sheath diameter.188 ) ual, 6 Wire (Minimum sheath diameter.250 ) Table 3: Stainless Steel Stainless Steel 8 Inconel 600 V F Table 4: iameter.125 or ⅛ O or ⁵/₃₂ O or ³/₁₆ O or O or ⅜ O.. Table 5: ( L imension) Table 6: Lead ( imension) Table 8: Terminations 0 Split nds 1 #6 Spade Lug 2 X onnector with #6 Spade Lug 3 Plug ³/₁₆ Quick isconnect ³/₁₆ Quick isconnect, Insulated Quick isconnect Quick isconnect, Insulated M Mini Plug Table 9: Fitting Options 0 No Fitting N ⅛ NPT ompression, rass P ⅛ NPT ompression, Stainless Steel R NPT ompression, rass S NPT ompression, Stainless Steel V ½ NPT ompression, Stainless Steel Part Number Sequence R1P--409H-072R R1P H R R1P Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Sensor lement onfiguration iameter L Lead Leadwire Terminations Fitting Options 6

7 RT WITH FIX FITTIN L imension Specify in inches. (nter 10H for 10 ½ ) iameter Resistance Temperature etectors imension Specify in inches. (nter 100 for 100 ) L imension Specify in inches. (nter 10H for 10 ½ ) iameter imension Specify in inches. (nter 100 for 100 ) STYL R2L, R2M or R2P R2L - Maximum Temperature 500 F R2M - Maximum Temperature 900 F R2P - Maximum Temperature 1200 F J K Table 2: onfiguration Single, 2 Wire Single, 3 Wire (Minimum sheath diameter.156 ) Single, 4 Wire (Minimum sheath diameter.188 ) ual, 4 Wire (Minimum sheath diameter.188 ) ual, 6 Wire (Minimum sheath diameter.250 ) Table 3: Stainless Steel Stainless Steel 8 Inconel 600 V F Table 1: lement 100 ohm urve lass Platinum 100 ohm urve lass Platinum 500 ohm urve lass Platinum 1000 ohm urve lass Platinum 100 ohm urve lass Platinum 120 ohm urve Nickel (R2L Only) 604 ohm urve Nickel Iron (R2L Only) Table 4: iameter.125 or ⅛ O or ⁵/₃₂ O or ³/₁₆ O or O or ⅜ O.. Table 5: ( L imension) Table 6: Lead ( imension) Part Number Sequence R2P--4V12F-0181 F J K M Table 7: Leadwire Stranded Fiberglass Singles Stranded Fiberglass with Overall Fiberglass Jacket Stranded Fiberglass with Stainless Steel Overbraid Stranded Fiberglass with Stainless Steel rmor Stranded Mica/Fiberglass Singles Stranded Teflon Singles (R2L Only) Stranded Teflon with Overall Teflon Jacket (R2L Only) Stranded Teflon with Stainless Steel Overbraid (R2L Only) Stranded Teflon with Stainless Steel rmor (R2L Only) PV with Mylar Shield (R2L Only) Table 8: Spring Loaded Options 1 Fixed Fitting 2 Spring Loaded Fitting Table 9: Terminations 0 Split nds 1 #6 Spade Lug 2 X onnector with #6 Spade Lug 3 Plug ³/₁₆ Quick isconnect ³/₁₆ Quick isconnect, Insulated Quick isconnect Quick isconnect, Insulated M Mini Plug Table 10: Fitting Options 1 NPT x NPT rass Hex Nipple 2 NPT x NPT Stainless Steel Hex Nipple 5 ½ NPT x ½ NPT rass Hex Nipple 6 ½ NPT x ½ NPT Stainless Steel Hex Nipple NPT rass ushing NPT Stainless Steel ushing ½ NPT rass ushing H ½ NPT Stainless Steel ushing R2P V 12F R2L, R2M, R2P Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Sensor lement onfiguration iameter L Lead Leadwire Spring Loading Terminations Fitting Options 7

8 Resistance Temperature etectors RT WITH PLU iameter L imension Specify in inches (nter 100 for 100 ) STYL R3L, R3M or R3P R3L - Maximum Temperature 500 F R3M - Maximum Temperature 900 F R3P - Maximum Temperature 1200 F rimp dapter Table 1: lement Table 4: iameter 100 ohm urve lass Platinum.125 or ⅛ O ohm urve lass Platinum V.156 or ⁵/₃₂ O ohm urve lass Platinum.188 or ³/₁₆ O ohm urve lass Platinum.250 or O ohm urve lass Platinum F.375 or ⅜ O.. J 120 ohm urve Nickel (R3L Only) K 604 ohm urve Nickel Iron (R3L Only) Table 2: onfiguration Single, 2 Wire Single, 3 Wire (Minimum sheath diameter.156 ) Single, 4 Wire (Minimum sheath diameter.188 ) ual, 4 Wire (Minimum sheath diameter.188 ) ual, 6 Wire (Minimum sheath diameter.250 ) Table 5: ( L imension) Table 3: Stainless Steel Stainless Steel 8 Inconel 600 Table 6: Terminations 5 Plug with rimp onnector 7 Plug with Tube dapter J Open isk lock, eramic K Open isk lock, lass Fiber M Mini Plug with rimp dapter Part Number Sequence R3L--6F100-5 R3L F R3L, R3M, R3P Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Sensor lement onfiguration iameter L Terminations 8

9 RT WITH TRMINL H Resistance Temperature etectors L imension Specify in inches (nter 100 for 10 ) STYL R4L, R4M or R4P R4L - Maximum Temperature 500 F R4M - Maximum Temperature 900 F R4P - Maximum Temperature 1200 F J K Table 1: lement 100 ohm urve lass Platinum 100 ohm urve lass Platinum 500 ohm urve lass Platinum 1000 ohm urve lass Platinum 100 ohm urve lass Platinum 120 ohm urve Nickel (R4L Only) 604 ohm urve Nickel Iron (R4L Only) Table 6: Process onnections 6 ½ NPT Stainless Steel Hex Nipple 8 ¾ NPT Stainless Steel Hex Nipple Table 7: Spring Loaded Options 1 Fixed Fitting 2 Spring Loaded Fitting Table 2: onfiguration Single, 2 Wire Single, 3 Wire (Minimum sheath diameter.156 ) Single, 4 Wire (Minimum sheath diameter.188 ) ual, 4 Wire (Minimum sheath diameter.188 ) ual, 6 Wire (Minimum sheath diameter.250 ) Table 3: Stainless Steel Stainless Steel 8 Inconel 600 V F Table 4: iameter.125 or ⅛ O or ⁵/₃₂ O or ³/₁₆ O or O or ⅜ O.. Table 5: ( L imension) M P R W V Z Y Table 8: Terminal Heads ½ NPT onduit, luminum Head ¾ NPT onduit, luminum Head ½ NPT onduit, ast Iron Head ¾ NPT onduit, ast Iron Head NPT onduit onnection, Miniature Plastic Head ½ NPT onduit, rey elrin Head ¾ NPT onduit, rey elrin Head ½ NPT onduit, White Polypropylene Head ¾ NPT onduit, White Polypropylene Head ½ NPT onduit, xplosion Proof luminum Head ¾ NPT onduit, xplosion Proof luminum Head Table 9: Fitting Options 0 No Fitting N ⅛ NPT ompression, rass P ⅛ NPT ompression, Stainless Steel R NPT ompression, rass S NPT ompression, Stainless Steel V ½ NPT ompression, Stainless Steel Part Number Sequence R4L R R4L R R4L, R4M, R4P Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Sensor lement onfiguration iameter L Process onnections Spring Loading Terminal Head Fitting Options 9

10 MLT OLT RT Resistance Temperature etectors urex melt bolts are designed for dependable temperature measurement of the plastic melt stream within extruders and injection molding equipment. assemblies are supplied with mineral insulated sensing elements for extended pressure and temperature performance. For options at the probe tip there are thermal barriers of Teflon (500 F) and Mycalex (900 F) available upon request. 1 ½ ½ L imension imension ½ L imension ¾ Hex Head ½ 20 UNF 2 Thread ¾ Hex Head ½ 20 UNF 2 Thread RM0 RM1 1 ½ ½ L imension imension ½ L imension ¾ Hex Head ½ 20 UNF 2 Thread RM2 ¾ Hex Head RM3 ½ 20 UNF 2 Thread im. ½ L imension imension ½ L imension ¾ Hex Head ½ 20 UNF 2 Thread ¾ Hex Head ½ 20 UNF 2 Thread RM4 RM5 Table 1: lement 100 ohm urve lass Platinum 100 ohm urve lass Platinum 500 ohm urve lass Platinum 1000 ohm urve lass Platinum 100 ohm urve lass Platinum Table 2: onfiguration Single, 2 Wire Single, 3 Wire (Minimum sheath diameter.156 ) Single, 4 Wire (Minimum sheath diameter.188 ) ual, 4 Wire (Minimum sheath diameter.188 ) ual, 6 Wire (Minimum sheath diameter.250 ) Part Number Sequence RM S024L RM S 024 L RM0 - RM5 Table 1 Table 2 L im. im. im. Operating Temp. Sensor lement onfiguration 030 = 3 / 040 = = 6 See Page 4 See Page 4 L = 500 F M = 900 F lank olts ½ -20 UNF 2 Thread 2 ³/₁₆ L imension.500 ia. ½ L imension Part Number lank olts occupy hole when Melt olt is removed. 10

11 Resistance Temperature etectors SURF MOUNT RTS Stripped imension nter 014 for 14 poxy Seal STYL RSM1 Heavy uty Surface Mount Pad Thick Pad Width Stripped imension nter 014 for 14 poxy Seal STYL RSM2 Surface Mount Stripped imension nter 014 for 14 STYL RSM3 dhesive Patch Pad Pad Width Table 1: lement 100 ohm urve lass Platinum 100 ohm urve lass Platinum 500 ohm urve lass Platinum 1000 ohm urve lass Platinum 100 ohm urve lass Platinum Table 2: onfiguration Single, 2 Wire Single, 3 Wire (Minimum sheath diameter.156 ) Single, 4 Wire (Minimum sheath diameter.188 ) ual, 4 Wire (Minimum sheath diameter.188 ) ual, 6 Wire (Minimum sheath diameter.250 ) Table 3: Pad rass F Fiberglass Stainless Steel 0 None Table 5: Pad Width 06H 6.5 L 00M (.750 ) 000 No Pad Part Number Sequence Table 4: Pad Thickness ³/₁₆ (.188 ) (.250 ) H ½ (.500 ) 0 None Table 6: Pad 06H 6.5 Long 010 () 000 No Pad RSM1--00M F3 Table 7: Lead ( imension) F J K M Table 8: Leadwire Stranded Fiberglass Singles Stranded Fiberglass with Overall Fiberglass Jacket Stranded Mica/Fiberglass Stranded Teflon Singles Stranded Teflon with Stainless Steel Overbraid Stranded Teflon with Stainless Steel rmor PV with Mylar Shield Table 9: Terminations 0 Split nds 1 #6 Spade Lug 2 X onnector with #6 Spade Lug 3 Plug M Mini Plug P Table 10: Mounting Hole No. 6 Stud Size,.144 Hole iameter No. 6 Stud Size,. 169 Hole iameter No. 10 Stud Size,. 196 Hole iameter Stud Size,.266 Hole iameter ⅜ Stud Size,.390 Hole iameter Patch RSM M F 3 RSM1, RSM2, RSM3 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Sensor lement onfiguration Pad Pad Thickness Pad Width Pad Leadwire Leadwire Terminations Mounting Hole 11

12 Resistance Temperature etectors RT THRMOWLLS Insertion 3 Tol. ± ½ Insertion ½ x ½ losed Nipple Fitting STYL RW1 lack Pipe Nipple STYL RW2 8 Tol. ± Insertion STYL RW3 Nipple, Union, Nipple - lack Pipe Schedule 40 J K Table 1: lement 100 ohm urve lass Platinum 100 ohm urve lass Platinum 500 ohm urve lass Platinum 1000 ohm urve lass Platinum 100 ohm urve lass Platinum 120 ohm urve Nickel 604 ohm urve Nickel Iron Table 5: Process onnection K lack Pipe, Schedule 40 Y alvanized Pipe, Schedule Stainless Steel Table 6: Spring Loaded Options 1 Fixed Fitting 2 Spring Loaded Fitting Table 2: onfiguration Single, 2 Wire Single, 3 Wire (Minimum sheath diameter.156 ) Single, 4 Wire (Minimum sheath diameter.188 ) ual, 4 Wire (Minimum sheath diameter.188 ) ual, 6 Wire (Minimum sheath diameter.250 ) Table 3: Thermowell Number See next page for Thermowell Numbers M P R Table 7: Terminal Heads ½ NPT onduit, luminum Head ¾ NPT onduit, luminum Head ½ NPT onduit, ast Iron Head ¾ NPT onduit, ast Iron Head NPT onduit onnection, Miniature Plastic Head ½ NPT onduit, rey elrin Head ¾ NPT onduit, rey elrin Head W ½ NPT onduit, White Polypropylene Head Table 4: Well Stainless Steel Stainless Steel V Z Y ¾ NPT onduit, White Polypropylene Head ½ NPT onduit, xplosion Proof luminum Head ¾ NPT onduit, xplosion Proof luminum Head Part Number Sequence RW H4-K2 RW H 4 - K 2 RW1, RW2, RW3 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Sensor lement onfiguration Thermowell Number Well Process onnection Spring Loading Terminal Head 12

13 RT THRMOWLLS 1 ¾ Thread llowance Insertion U imension Resistance Temperature etectors 2 ½ Wrench llowance ¾ T im. Specify or 3 Thread llowance Insertion U im. 2 ½ ½ ia. ½ ia. ½ NPT Thread ½, ¾ or NPT Thread ⅝, ¾ or ⅞ ia. Well - Stepped Shank.260 ±.00 ore ia. U im. ½ NPT ¾ NPT NPT 2 ½ 1202H 1302H 1402H 4 ½ 1204H 1304H 1404H ½ 1207H 1307H 1407H 10 ½ 1210H 1310H 1410H ½ 1216H 1316H 1416H 22 ½ 1222H 1322H 1422H ½ NPT Thread ½, ¾ or NPT Thread ⅝, ¾ or ⅞ ia..260 ±.00 ore ia. Lagging xtension Well - Stepped Shank U im. ½ NPT ¾ NPT NPT 2 ½ 2202H 2302H 2402H 4 ½ 2204H 2304H 2404H ½ 2207H 2307H 2407H 10 ½ 2210H 2310H 2410H ½ 2216H 2316H 2416H 22 ½ 2222H 2322H 2422H 1 ¾ Thread llowance Insertion U imension Wrench llowance ¾ T im. Specify or 3 Thread llowance Insertion U imension 49 / 64 or ⅞ ia. 49 / 64 or ⅞ ia. ½ NPT Thread ¾ or NPT Thread Well - Straight Shank.385 ±.00 ore ia. U im. ¾ NPT NPT 2 ½ 3302H 3402H 4 ½ 3304H 3404H ½ 3307H 3407H 10 ½ 3310H 3410H ½ 3316H 3416H 22 ½ 3322H 3422H ½ NPT Thread ¾ or NPT Thread.385 ±.00 ore ia. Lagging xtension Well - Straight Shank U im. ¾ NPT NPT 2 ½ 4302H 4402H 4 ½ 4304H 4404H ½ 4307H 4407H 10 ½ 4310H 4410H ½ 4316H 4416H 22 ½ 4322H 4422H 1 ¾ Thread llowance Insertion U imension ⅞ or 1 ¹/₁₆ ia. Wrench llowance ¾ T im. Specify or 3 Thread llowance Insertion U imension ⅞ or 1 ¹/₁₆ ia. ⅝ or ⁴⁹/₆₄ ia. ⅝ or ⁴⁹/₆₄ ia. ½ NPT Thread ¾ or NPT Thread Well - Tapered Shank.260 or.385 ±.00 ore ia. U im. ¾ NPT NPT.260 ore.385 ore.260 ore.385 ore 2 ½ 5302H 6302H 5402H 6402H 4 ½ 5304H 6304H 5404H 6404H ½ 5307H 6307H 5407H 6407H 10 ½ 5310H 6310H 5410H 6410H ½ 5316H 6316H 5416H 6416H 22 ½ 5322H 6322H 5422H 6422H ¾ or NPT Thread.260 or.385 ±.00 ore ia. U im. ¾ NPT NPT.260 ore.385 ore.260 ore.385 ore 2 ½ 7302H 8302H 7402H 8402H 4 ½ 7304H 8304H 7404H 8404H ½ 7307H 8307H 7407H 8407H 10 ½ 7310H 8310H 7410H 8410H ½ 7316H 8316H 7416H 8416H 22 ½ 7322H 8322H 7422H 8422H ½ NPT Thread Lagging xtension Well - Tapered Shank 13

14 Resistance Temperature etectors HN HL RTS Stripped imension nter 012 for 1 2 ¾ L imension nter 04H for 4 ½ STYL RN1 Stainless Steel Handle with rmor Protection (Smokehouse) Stripped imension nter 012 for 1 3 ½ L imension nter 04H for 4 ½ xtended, 48 to 60 Retracted Lenght, 1 STYL RN2 eneral Purpose Hand Held 3 ½ L imension nter 04H for 4 ½ Silicone Rubber Retractable oil (400 F Service) STYL RN3 (Single, 2 Wire onfiguration Only) Teflon Handle ³/₁₆ Stainless Steel Table 1: lement Table 6: Leadwire 100 ohm urve lass Platinum Fiberglass Leadwire with Stainless Steel Overbraid 100 ohm urve lass Platinum J Teflon Leadwire with Stainless Steel Overbraid 500 ohm urve lass Platinum K Teflon Leadwire with Stainless Steel rmor 1000 ohm urve lass Platinum M PV Leadwire with Mylar Shield 100 ohm urve lass Platinum R oiled PV ord (Single 2 Wire Only) J 120 ohm urve Nickel S oiled Silicone Rubber ord (Single 2 Wire Only) K 604 ohm urve Nickel Iron Table 2: onfiguration Single, 2 Wire Single, 3 Wire (Minimum sheath diameter.156 ) Single, 4 Wire (Minimum sheath diameter.188 ) ual, 4 Wire (Minimum sheath diameter.188 ) ual, 6 Wire (Minimum sheath diameter.250 ) R P S Table 7: Tip onfiguration Round Piercing ir Temperature Surface V Table 3: iameter.125 or ⅛ O or ⁵/₃₂ O or ³/₁₆ O or O.. Table 4: ( L imension) Table 5: Lead ( imension) Table 8: Terminations 0 Split nds 1 #6 Spade Lug 2 X onnector with #6 Spade Lug 3 Plug ³/₁₆ Quick isconnect ³/₁₆ Quick isconnect, Insulated Quick isconnect Quick isconnect, Insulated M Mini Plug Part Number Sequence RN2--04P-036MR RN P M R RN1, RN2, RN3 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Sensor lement onfiguration iameter L Lead Leadwire Tip onfiguration Terminations 14

15 RT WITH SNITRY FITTIN Resistance Temperature etectors 3 L imension nter 12 for 12 Reduced Tip 316 Stainless Steel Nipple STYL RSF Stainless Steel Sanitary ap Table 1: lement Table 6: Sanitary ap 100 ohm Platinum, lass oefficient T 16 Plain ap, Tri lover 100 ohm Platinum, lass oefficient U 16 Plain ap & 13H Hex Union Nut, Tri lover 1000 ohm Platinum, lass oefficient X Special, Specify 100 ohm Platinum, lass oefficient Table 2: onfiguration Single, 2 Wire Single, 3 Wire (Minimum sheath diameter.156 ) Single, 4 Wire (Minimum sheath diameter.188 ) ual, 4 Wire (Minimum sheath diameter.188 ) ual, 6 Wire (Minimum sheath diameter.250 ) Table 7: Sanitary ap Size 1 1 ½ (Tube Outer iameter) 2 (Tube Outer iameter) 3 2 ½ (Tube Outer iameter) 4 3 (Tube Outer iameter) Table 3: Stainless Steel Table 8: Terminal Head Table 4: iameter.188 or ³/₁₆ O.. luminum Screw over Head; ½ NPT onduit onnection.250 or O.. Table 5: Immersion ( L imension) W White Polypropylene F ompliant Screw over Head; ½ NPT onduit onnection Part Number Sequence RSF-H-612-T1W RSF - H T 1 W RSF Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Sensor lement onfiguration iameter Immersion L ap ap Size Terminal Head 15

16 RT WITH SNITRY WLLS ONNT Resistance Temperature etectors 1 ¾ L imension nter 06H for 6 ½ Stainless Steel Sanitary ap STYL RSW Table 1: lement Table 6: Sanitary ap 100 ohm Platinum, lass oefficient T 16 Plain ap, Tri lover 100 ohm Platinum, lass oefficient U 16 Plain ap & 13H Hex Union Nut, Tri lover 1000 ohm Platinum, lass oefficient X Special, Specify 100 ohm Platinum, lass oefficient Table 2: onfiguration Single, 2 Wire Single, 3 Wire (Minimum sheath diameter.156 ) Single, 4 Wire (Minimum sheath diameter.188 ) ual, 4 Wire (Minimum sheath diameter.188 ) ual, 6 Wire (Minimum sheath diameter.250 ) Table 7: Sanitary ap Size 1 1 ½ (Tube Outer iameter) 2 (Tube Outer iameter) 3 2 ½ (Tube Outer iameter) 4 3 (Tube Outer iameter) Table 3: Stainless Steel Table 8: Terminal Head H Table 4: iameter.500 or ½ Outer iameter Table 5: Immersion ( L imension) W luminum Screw over Head; ½ NPT onduit onnection White Polypropylene F ompliant Screw over Head; ½ NPT onduit onnection Part Number Sequence RSW--6H06H-T1W RSW H 06H - T 1 W RSW Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Sensor lement onfiguration iameter Immersion L ap ap Size Terminal Head 16

17 Resistance Temperature etectors TFLON SHIL RT Stripped imension nter 045 for 45 L imension nter 04H for 4 ½ Teflon oated STYL RT1 - Teflon oated Stripped imension nter 045 for 45 L imension nter 04H for 4 ½ ual Wall Teflon Heat Shrink STYL RT2 - Leadwire or M Only ual Wall Preclosed Teflon Shield STYL RT3 - Leadwire or M Only Table 1: lement 100 ohm Platinum, lass oefficient 100 ohm Platinum, lass oefficient 1000 ohm Platinum, lass oefficient 100 ohm Platinum, lass oefficient Table 2: onfiguration Single, 2 Wire Single, 3 Wire Single, 4 Wire ual, 4 Wire ual, 6 Wire (Minimum sheath diameter.250 ) Table 3: Stainless Steel Stainless Steel Table 4: iameter Nominal RT1 RT2 / RT " Table 5: Sanitary ( L imension) F J K M Table 6: Lead ( imension) Table 7: Leadwire Stranded Fiberglass Singles Stranded Fiberglass with Overall Fiberglass Jacket Stranded Fiberglass with Stainless Steel Overbraid Stranded Fiberglass with Stainless Steel rmor Stranded Mica/Fiberglass Singles Stranded Teflon Singles Stranded Teflon with Overall Teflon Jacket Stranded Teflon with Stainless Steel Overbraid Stranded Teflon with Stainless Steel rmor PV with Mylar Shield Table 8: Terminations 0 Split nds 1 #6 Spade Lug 2 X onnector with #6 Spade Lug 3 Plug ³/₁₆ Quick isconnect ³/₁₆ Quick isconnect, Insulated Quick isconnect Quick isconnect, Insulated M Mini Plug Part Number Sequence RT2--404H-024F RT H F RT1, RT2 or RT3 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Sensor lement onfiguration iameter L Lead Leadwire Terminations 17

18 Plastics Industry JUSTL PTH RTs Resistance Temperature etectors (RTs) are continuing to expand as a temperature sensor for plastic machinery applications. ll the standard plastics thermocouple designs are available in RT configurations. The standard element is 100 ohm Platinum, Ω/Ω/, lass per I 751 and IN (± 0.1% at 0 ). ll assemblies can be specified as 2, 3, or 4 wire configurations. Please specify requirements. imension ½ In Inches 1 ³/₁₆ Stainless Steel Tip with Silver Solder Junction Specify lement & onfiguration Stainless Steel Overbraid R00 ½ ³/₁₆ Stainless Steel Tip with Silver Solder Junction imension In Inches Specify lement & onfiguration Stainless Steel rmor able Shield R01 Part Number Sequence R L1 See tables on next page R L 1 R01 Next Page Next Page See page 54 L = 500 F / M = 900 F Next Page Sensor lement onfiguration imension Operating Temperature Termination FIX YONT RTs L imension In Inches imension In Inches Termination 1 ½ Relaxed Specify lement and onfiguration ³/₁₆ O.. Stainless Steel Tip R00 L imension In Inches ½ ³/₁₆ O.. Stainless Steel Tip 1 ½ Relaxed R45 1 ¾ imension In Inches 45 end Termination Specify lement and onfiguration ½ L imension In Inches ³/₁₆ O.. Stainless Steel Tip 1 ¾ imension In Inches 1 ½ Relaxed 90 end Termination Specify lement and onfiguration R90 Part Number Sequence R00--09F-022L4 See tables on next page R F L 4 R00 Next Page Next Page See page 54 See page 54 L = 500 F / M = 900 F Next Page Sensor lement onfiguration L imension imension Operating Temperature Termination Rev 1/28/15 66

19 OMPRSSION FITTIN RTs Plastics Industry L imension In Inches rass ompression Fitting; ⅛ N.P.T. Specify lement and onfiguration ³/₁₆ O.. Stainless Steel Tip R00 imension In Inches Termination L imension In Inches 1 ¾ imension In Inches rass ompression Fitting; ⅛ N.P.T. Specify lement and onfiguration ³/₁₆ O.. Stainless Steel Tip R45 45 end Termination L im. In Inches 1 ¾ ³/₁₆ O.. Stainless Steel Tip 90 end im. In Inches Termination rass ompression Fitting; ⅛ N.P.T. Specify lement and onfiguration R90 Part Number Sequence R45--04K-028L0 See tables on next page R K L 0 R45 Table elow Table elow See page 54 See page 54 L = 500 F / M = 900 F Options elow Sensor lement onfiguration L imension imension Operating Temperature Termination RT OPTIONS lement 100 ohm Platinum, lass oefficient Single, 2 Wire 100 ohm Platinum, lass oefficient Single, 3 Wire 1000 ohm Platinum, lass oefficient Single, 4 Wire 100 ohm Platinum, lass oefficient ouble, 4 Wire TRMINTION OPTIONS Stripped TYP 0 Split Leads TYP 1 Spade Lugs TYP 2 X onnector with Lugs TYP 3 able lamp Plug TYP 4 able lamp Jack Rev 1/28/15 67

20 Resistance Temperature etectors INTRT TRNSMITTR RT SSMLY The unique line of Integrated Transmitter RT ssemblies combines an industry standard 4-20m transmitter with a matched high accuracy RT (Resistive Temperature evice) in a compact, hermetically sealed assembly. The robust construction of this product enables it to withstand vibrations, harsh wash downs and drastic temperature changes in the roughest environmental conditions. This unique design eliminates the need for additional connection leads and hardware such as mounting boxes, transmitter housings, and cable tracks. ustomer specified temperature range for the transmitter calibration as well as custom probe dimensions, extension cable length and type, and process connection types make these sensors a sure fit for the most challenging applications. Probe Fitting ap Housing Transmitter xtension able Lead Wires esign Features: an be recalibrated and re-scaled in the field. ompact size permits easy usage where space is limited 2.5 long by 0.6 diameter housing holds electronic circuit and microprocessor Robust construction of transmitter housing resists wear in severe operating conditions Hermatic seal prevents moisture from entering the transmitter housing, ensuring reliability Sturdy construction is resistant to vibrations ost effective and maintenance free Typical pplications: enerators ngines ompressors Pharmaceutical Industries Utilities hemical Plants as Pipelines Food Preparation Refineries Petrochemical Plants Paper Mills 18

21 Resistance Temperature etectors INTRT TRNSMITTR RT SSMLY The IT22 assembly s configuration range stands out amongst other temperature sensors in its class. With a wide variety of probe diameters, temperature ranges, and fitting configurations, the IT22 can be designed to fit an abundance of applications. ompression Fitting Stop ollar* 4 L imension 2 ½ imension STYL IT22 *No stop collar option, = N00 Stop collar recommended for temperatures above L To order the IT22 with a 90 bend, add suffix after the model number. x: IT22 Table 1: alibrated Temperature Range 05 0 to 50 ( F) 10 0 to 100 ( F) 15 0 to 150 ( F) 20 0 to 200 ( F) to 50 ( F) to 150 ( F) to 200 ( F) XX ustom Temperature Range, Specify Integrated Transmitter RT ssemblies are factory calibrated to an accuracy of ± 0.25% of span or better. LP L Table 2: Output 4-20 m loop, upscale burnout (standard) 4-20 m loop, downscale burnout Table 6: xtension N Specify in 0.1 inch increments. x: N20 = 2.0 N S18S* Table 7: Fitting None ompression Fitting (See below to configure) *S18S is an example, configure fitting type: Ferrule material: S = Stainless Steel* = rass* T = Teflon *Not readjustable with metal ferrule Process NPT Size: 18 = ⅛ 14 = 38 = ⅜ 12 = ½ 34 = ¾ 44 = Table 3: Probe iameter ⅛ ³/₁₆ F ⅜ H ½ S Table 4: Probe 316 Stainless Steel Fitting material: S = Stainless Steel PV TF T T = rass Table 8: xtension able PV Insulation, 90 (195 F) max. Teflon Insulation, 200 (392 F) max. Teflon with Stainless Steel rmor, 200 (392 F) max. Teflon with Stainless Steel Overbraid, 200 (392 F) max. Table 5: Probe L _ Specify in 0.1 inch increments. x: 065 = 6.5 Table 9: xtension able _ Specify in inches. x: 060 = 60 Part Number Sequence IT22-05-LP--S-065-N20-N-T-060 IT LP - - S N20 - N - T IT22 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Sensor Temp Range Output Probe iameter Probe Probe Lenth xtension Fitting xtension able xtension able 19

22 Resistance Temperature etectors INUSTRIL TMPRTUR SNSOR WITH M12 MIRO-ONNTOR IT25 assemblies can be utilized in similar applications as the IT22, but the IT25 allows for quick disconnections. IT25 devices are effective in laboratory test equipment, hydraulic power units, skids, generators, and mobile equipment. ompression Fitting Stop ollar* M12 Micro-onnector xtension able 4 L L imension 2 ½ imension STYL IT25 *No stop collar option, = N00 Stop collar recommended for temperatures above 100 To order the IT25 with a 90 bend, add suffix after the model number. x: IT25 Table 1: alibrated Temperature Range 05 0 to 50 ( F) 10 0 to 100 ( F) 15 0 to 150 ( F) 20 0 to 200 ( F) to 50 ( F) to 150 ( F) to 200 ( F) XX ustom Temperature Range, Specify Integrated Transmitter RT ssemblies are factory calibrated to an accuracy of ± 0.25% of span or better. Table 2: Output LP 4-20 m loop, upscale burnout (standard) L 4-20 m loop, downscale burnout Table 6: xtension N Specify in 0.1 inch increments. x: N20 = 2.0 N S18S* Table 7: Fitting None ompression Fitting (See below to configure) *S18S is an example, configure fitting type: Ferrule material: S = Stainless Steel* = rass* T = Teflon *Not readjustable with metal ferrule Process NPT Size: 18 = ⅛ 14 = 38 = ⅜ 12 = ½ 34 = ¾ 44 = Table 3: Probe iameter ⅛ ³/₁₆ F ⅜ H ½ S Table 4: Probe 316 Stainless Steel Table 5: Probe L _ Specify in 0.1 inch increments. x: 065 = 6.5 Fitting material: S = Stainless Steel M12 N = rass Table 8: onnector M12 Micro-onnector 5 pin male receptacle, Nickel Plated rass Table 9: xtension able None Straight, 2 meters Straight, 5 meters Right ngle, 2 meters Right ngle, 5 meters Part Number Sequence IT25-05-LP--S-065-N20-N-M12-2 IT LP - - S N20 - N - M12-2 IT25 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Sensor Temp Range Output Probe iameter Probe Probe Lenth xtension Fitting onnector xtension able 20

23 Resistance Temperature etectors SNITRY TMPRTUR SNSOR WITH XTNSION L ITS22 assemblies are particularly useful where extreme operating conditions exist in wash down situations and very wet environments. While external cables will withstand wash downs, to further protect the sensor and ensure longer life, stainless steel armor or overbraid can be custom added to prevent abrasion wear. Sanitary ap 4 1 ½ 0.12 R min. L imension 1 ½ 2 ½ imension 3 STYL ITS22 To order the ITS22 with a 90 bend, add suffix after the model number. x: ITS22 Table 1: alibrated Temperature Range 05 0 to 50 ( F) 10 0 to 100 ( F) 15 0 to 150 ( F) 20 0 to 200 ( F) to 50 ( F) to 150 ( F) to 200 ( F) XX ustom Temperature Range, Specify Integrated Transmitter RT ssemblies are factory calibrated to an accuracy of ± 0.25% of span or better. Table 2: Output LP 4-20 m loop, upscale burnout (standard) L 4-20 m loop, downscale burnout Table 5: Probe L _ Specify in 0.1 inch increments. x: 065 = 6.5 Table 6: xtension N Specify in 0.1 inch increments. x: N20 = 2.0 Table 7: Fitting T15 Tri-lamp, 1 ½ (16 MP) T20 Tri-lamp, (16 MP) T25 Tri-lamp, 2 ½ (16 MP) T30 Tri-lamp, 3 (16 MP) Table 3: Probe iameter F ⅜ H ½ - Outer ia. Tip Outer ia. ⅛ F ⅜ ³/₁₆ H ½ ³/₁₆ H ½ J ⅝ Table 8: xtension able PV PV Insulation, 90 (195 F) max. TF Teflon Insulation, 200 (392 F) max. T Teflon with Stainless Steel rmor, 200 (392 F) max. T Teflon with Stainless Steel Overbraid, 200 (392 F) max. Table 9: xtension able _ Specify in inches. x: 060 = 60 S Table 4: Probe 316 Stainless Steel S P Table 10: Surface Finish Pharmaceutical Part Number Sequence ITS22-05-LP--S-065-N20-T15-PV-060-S ITS LP - - S N20 - T15 - PV S ITS22 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Sensor Temp Range Output Probe iameter Probe Probe Lenth xtension Fitting xtension able xtension able Surface Finish 21

24 Resistance Temperature etectors THRMISTOR SNSOR Stripped imension nter 045 for 45 L imension nter 080 for 8 STYL M1 iameter imension nter 045 for 45 L imension nter 020 for STYL M2 iameter Table 1: lement 1 10K ohm at K ohm at K ohm at K ohm at K ohm at 25 F Table 6: Lead ( imension) Table 7: Leadwire Fiberglass Leadwire Singles Teflon Leadwire Singles Teflon Leadwire with Overall Teflon Jacket Table 2: lement Tolerance ± 1% at 25 ± 5% at 25 ± 10% at 25 ± 20% at 25 Table 3: Stainless Steel Stainless Steel Table 8: Fitting Options ⅛ NPT rass ushing ⅛ NPT Stainless Steel ushing NPT rass ushing NPT Stainless Steel ushing ⅜ NPT rass ushing F ⅜ NPT Stainless Steel ushing ½ NPT rass ushing H ½ NPT Stainless Steel ushing 0 No Fitting (M1 Only) V Table 4: iameter.125 or ⅛ Outer iameter.156 or ⁵/₃₂ Outer iameter.188 or ³/₁₆ Outer iameter.250 or Outer iameter Table 5: ( L imension) Table 9: Terminal onnectors 1 #6 Spade Lug ³/₁₆ isconnect ³/₁₆ isconnect, Insulated isconnect isconnect, Insulated M Mini Plug Part Number Sequence M H M H M1 or M2 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Sensor lement lement Tolerance iameter L Lead Leadwire Fitting Options Terminal onnectors 22

25 SPILTY SNSORS ir Temperature RT's The perforated tip of the air resistance temperature detector is designed for rapid monitoring of airflow temperature in various applications. Small film elements used in these housings can detect incremental changes more quickly than conventional housings. This construction can also be adapted to include special flanges and fittings, as well as custom connector options. Resistance Temperature etectors Self dhesive RT's If the surface being measured for temperature cannot be penetrated or if space limitations require it, urex can provide an RT with an adhesive patch for direct surface mounting. We routinely provide such sensors with special adhesive to accommodate temperature and vapor release requirements. ents. Teflon -oated Probes RT s are available with Teflon coated sheaths for applications that require contact temperature measurement in corrosive or chemical environments. The Teflon coating can be applied directly to the sheath of the RT, providing protection while minimizing effects to response. In applications that require considerable long-term protection, a welded Teflon sleeve can be used adding a s much as ¹/₁₆ thick of Teflon protection to the surface of the probe. Flexible RT designs are available, which encapsulate the entire length of the RT for applications requiring long lengths of immersion. endable RT's When an RT needs to snake through an installation because of space limitations or other factors, urex offers bendable elements with overbraid shielding or armor to suit the specifics of your application. 23

26 SPILTY SNSORS Flexible RT's Resistance Temperature etectors Utilizing the same technology as a sealed Silicone Rubber heater, urex offers a surface mount RT sensor for direct mounting to flat or curved surfaces. The desing can be maintained in various thicknesses and supplied with an adhesive backing for quick application. thinner profile can be used to wrap the sensor to curved surfaces such as cooling or water lines. Hand Held RT's urex manufactures a line of multi-purpose hand held resistance temperature detectors for foodservice, industrial proces, and laboratory applications. Probe features include handles of stainless steel, Teflon, or plastic and coil cord leadwires that can be constructed to withstand ambient temperatures up to 400 F. designs include a mini plug connector, but many options are available. The RT sheath itself is typically stainless steel and can be constructed with tips designed for piercing frozen meat, sensing gas temperatures, liquid immersion, or surface temperature measurements. Foodservice RT's ccuracy and reliability are the main requirements for probes designed for use in the foodservice industry. Robust designs that can handle the rigors of the industry are essential for long term performance. urex has manufactured a wide variety of temperature sensors specifically for use in commercial cooking and food processing equipment. ll probes are designed to the rigid specifications of the individual applications including such requirements as NSF, F, and UL/S. ustomer designs are available in thermocouples, RT s, or thermistors. 24