RT2Y Compact temperature switch intrinsic safety Main Features Excellent repeatability Fix dead band for control and alarm Resistant to accidental overtemperature Intrinsic safety Hazardous area 0, 1, 2 Applications Power generation safety equipment Water treatment Valve and compressor control Technical Data Temperature range -46 ... 0 °C to 160 ... 250 °C Temperature Process : Ambient : Storage : -46 ... +250 °C -30 ... +70 °C (T5) -30 ... +55 °C (T6) -40 ... +70 °C Electrical connection Via internal terminal block with cable gland for Ø 5.5 to 8.5 mm Electrical function See ordering code details in page 5 Adjustment Internal adjustment possible for set point ATEX Bulb Stainless steel 1.4404 (316L) Ø 9.5 mm Scale Internal graduated scale Weight 0.960 kg + transmission Body Zamak black painting Housing Plastic PA6, blue Mounting Wall mounting 2 x M5 screws Type examination certificate LCIE 03 ATEX 6160X EN 60079-0: 2012 (internal conformity analysis) EN 60079-11: 2012 Marking 0081 IM1 Ex ia I Ma II 1 G Ex ia IIC T6 or T5 Ga Electrical data Umax = 30 Vdc Imax = 66 mA Pmax = 0.5 W Ground connection Via internal terminal block Ci = Negligible ; Li = Negligible Repeatability ± 1% F.S. / constant temperature cycle CE conformity Low Voltage Directive LVD 2006/95/EC ATEX Directive 94/9/EC Protection rating IP 66 (EN 60529) Process connection Stainless steel 1.4404 (316L) Code SETP Mounting on 2" pipe Code 0407 Stainless steel tag plate and wire Code 9941 Lead seal of the housing Code 8990 2015-10-19 Customer specific set point adjustment Design and specifications subject to change without notice Options www.baumer.com Data sheet B31.04 Page 1 / 5 RT2Y Compact temperature switch intrinsic safety Principle A vapour filled flexible sensing element actuates a microswitch by means of a piston. The set point is adjusted by means of a compressible spring installed in opposition. NC NC T°C P NC C C C NO NO Set point and reset point must be between 10% and 90% of the selected scale. NO Standard factory adjustment Setpoint at 50% of the scale on falling temperature Customer specific factory adjustment (option SETP) The following specifications have to be given with the order: • Setpoint value • Adjustment on falling or raising temperature NC C NC NC C C NO NO NO Adjustable ranges Micro-switch dead band 1) T°C max Fixed dead band Code °C °C M 10% 90% °C °C -46 ... 0 40 40 5 4 -20 ... 20 60 41 5 4 0 ... 45 80 42 3.5 3 40 ... 120 145 43 6 6 100 ... 180 190 44 7 5.5 20 ... 90 120 45 11 11 160 ... 250 290 46 6.5 5 70 ... 150 175 48 11 8 The value of the dead band is depending on the value of the set point. This table contains the dead band values for set point adjustment at 10% and 90% of the selected scale. For other set points the dead band value can be calculated by linear interpolation between the values at 10% and 90%. 2015-10-19 1) Design and specifications subject to change without notice Scale www.baumer.com Data sheet B31.04 Page 2 / 5 RT2Y Compact temperature switch intrinsic safety Micro switches characteristics M Switch code Gold contact 6 Vdc 10 ... 50 mA 12 Vdc 10 ... 50 mA 24 Vdc 10 ... 50 mA 30 Vdc 10 ... 50 mA 48 Vdc N/A 110 Vdc N/A 220 Vdc N/A 115 Vac N/A 250 Vac N/A Dielectric rigidity between contacts and ground 2000 V Electrical connections Micro switch NC Blue COM Red NO Terminal block White Certified safety barrier Hazardous area Zone 0, 1, 2 NO C Non hazardous area NO or NC NC + Rc 1 Yellow / green Supply – Screen For max. ambient temperature according to temperature classes T5 and T6 refer to technical data on page 1. The installation must be made in an intrinsically safe circuit whose certified electrical safety parameters do not exceed any of the values Umax, Imax and Pmax given in the electrical data on page 1. 2015-10-19 Design and specifications subject to change without notice All necessary measures must be taken by the user, to avoid the calorific transfer from the fluid to the apparatus head increasing the head's temperature to such that it reaches the self-ignition temperature of the gas in which it is used. www.baumer.com Data sheet B31.04 Page 3 / 5 RT2Y Compact temperature switch intrinsic safety Dimensions (mm) Direct mount temperature switches Temperature switches with capillary 97 73,5 S = Bulb length (temperature sensitive part) A = Additional stem length (min. 25 mm) 98 P = Immersion length (P = S + A) K = Capillary length (only TD1, TD2, TD3) flats 27/ 2 plats 2 grooves 5,5 33 68 E = Extension between process connection and housing only TRDE1 and TRDE2 33 E For version TD1 there is no additional stem length (A = 0). The sliding connection is mounted on the capillary. K ±2% K ±2% A Ø8 P± 3 Ø8 Ø 2,6 P±3 S 100 A Ø8 Ø 9,5 S S Ø 9,5 TRDE 1/2 TD1 TD2 Stainless steel sliding male connection (TD2/3, TRDE1/2) Clamping ring Stainless steel sliding male connection (TD1) Thread and sizes A Clamping nut Process connection TD3 B L H F Thread and sizes A F G 1/2 1/2 NPT H 18 21 L 36 40 A 17/flat 17/flat B 23/flat 23/flat Clamping nut B Tightness fittings L Process connection H F After tightening of the clamping nut, the stem is fixed in the process connection. Tight up to 40 bar. F G 1/2 1/2 NPT H 18 21 L 43 46 A 27/flat 27/flat B 27/flat 27/flat Waterproof after tightening mounted on the capillary. TRDE1 TRDE2 Capillary Code 40 41 42 43 44 45 46 48 n/a S / mm 100 100 100 100 n/a 100 n/a n/a n/a S / mm 100 100 100 100 100 100 100 100 TD1, TD2, TD3 K = 1...4 m S / mm 100 100 100 100 100 100 100 100 TD1, TD2, TD3 K = 5...7 m S / mm 100 150 150 100 100 150 100 100 TD1, TD2, TD3 K = 8...10 m S / mm 100 200 200 100 100 200 100 100 Design and specifications subject to change without notice Bulb length (S) according to the capillary length (K) and the temperature range (code) 2015-10-19 Versions with S = 150 mm or S = 200 mm are not feasible with P = 150 mm www.baumer.com Data sheet B31.04 Page 4 / 5 RT2Y Compact temperature switch intrinsic safety Ordering details RT2Y RT2 Model Compact temperature switch RT 2 Approvals ATEX intrinsic safety Type of microswitch 1 SPDT gold contact change over switch . / . – Y M . 40 41 42 43 44 45 46 48 (not for TRDE1) (not for TRDE1) (not for TRDE1) Type of transmission TD1 Stainless steel capillary without protection TD2 Stainless steel capillary with stainless steel protection TD3 Stainless steel capillary with stainless steel protection and PVC coating TRDE1 Rigid transmission with E=65 mm for temperature measurement below 120 °C TRDE2 Rigid transmission with E=120 mm for all temperature measurement Capillary length (K) Direct mounting (for TRDE1 and TRDE2) 1 meter 2 meters 3 meters 4 meters 5 meters 6 meters 7 meters 8 meters 9 meters 10 meters Immersion length (P) Immersion length (P) = Bulb length (S) + additional stem length (A) P = S + 25 mm (minimum additional stem length A = 25 mm, for S see table on page 4) P = 150 mm (not for TD1) P = 250 mm (not for TD1) P = 400 mm (not for TD1) P = 600 mm (not for TD1) P = 1000 mm (not for TD1) Bulb diameter Ø 9.5 mm Process connection Without G1/2 male (standard) 1/2 NPT male Options to be added behind the / (see example below) . 1 2 3 C D 0 1 2 3 4 5 6 7 8 9 A 0 3 4 5 6 D C 0 3 6 / Ordering example with options RT2 – Y M . 40 . 2 1 3 C 3 / 9941 www.baumer.com 2015-10-19 Compact temperature switch ATEX intrinsic safety 1 SPDT gold contact change over switch Temperature range -46 ... 0 °C Transmission TD2 Capillary 1 meter Immersion length 150 mm Bulb Ø 9.5 mm Process connection G1/2 Option: Stainless steel tag plate and wire Design and specifications subject to change without notice Temperature range (°C) -46 ... 0 -20 ... 20 0 ... 45 40 ... 120 100 ... 180 20 ... 90 160 ... 250 70 ... 150 – Data sheet B31.04 Page 5 / 5