RTNE3 - RTAE3 Industrial temperature switch, direct mounting explosion proof Main Features Excellent repeatability Dead band adjustment for regulation Fix dead band for control and alarm Explosion proof Hazardous areas 1, 2, 21, 22 Applications Power generation safety equipment Technical Data -46 ... 0°C to 40 ... 120°C Temperature Process : Ambient : Storage : -46 ... +120°C -30 ... +55°C -40 ... +55°C Repeatability ± 1% F.S. @ constant temperature cycle CE conformity Low Voltage Directive LVD 2006/95/EC ATEX Directive 94/9/EC IP 66 (EN 60529) Protection rating Process connection Bulb Scale RTA : Copper alloy RTN : Stainless steel 1.4404 (316L) RTA : Copper alloy RTN : Stainless steel 1.4404 (316L) Internal. Accuracy on reading ± 5% FS Housing Type RA80, explosion proof, flameproof Alumunium epoxy painted. Captive stainless steel screws Mounting 3 back lugs for wall mounting Ground connection Via internal terminal block Electrical connection Terminal block with metallic cable gland for Ø 7 to 12 mm standard Electrical function See ordering code details on page 5 Adjustment 2 external adjustment screws on top of the case for set point and dead band Type examination certificate LCIE 03 ATEX 6231X (Type RA80) EN 60079-0: 2012 (internal conformity analysis) EN 60079-1: 2007 EN 60079-31: 2009 Marking 0081 II 2 G D Ex d IIC T6 or T5 Gb Ex t IIIC IIC T80°C or T95°C Db IP6X T° ambient -20°C to +60°C (T6 or T80°C) or -20°C to +70°C (T5 or T95°C) ATEX Design and specifications subject to change without notice Temperature range Options Code SETP Stainless steel tag plate and wire Code 9941 Lead seal of the adjustment screws Code 8990 Nuclear cleanliness (RTN only) Code 0838 2015-05-26 Customer specific set point adjustment www.baumer.com Data sheet B31.12 Page 1 / 5 RTNE3 - RTAE3 Industrial temperature switch, direct mounting explosion proof Principle A vapour filled flexible sensing element actuates a microswitch by means of a lever. The set point is adjusted by means of a compressible spring installed in opposition. NC NC C C NC C NO NO NO Set point and reset point must be between 10% and 90% of the selected scale. Standard factory adjustment Setpoint at 50% of the scale on falling temperature NC C NO NC NC C C NO NO Customer specific factory adjustment (option SETP) The following specifications have to be given with the order: • Setpoint value • Adjustment on falling or raising temperature • Dead band value when using an adjustable dead band switch Electrical connections 2 SPDT 1 SPDT NC COM NO Blue Red White NC Blue COM Red NO White NC Blue COM Red NO White Yellow / green Hazardous areas : 1, 2, 21, 22 -20°C ≤ Ta ≤ +70°C Dust IP6x Gases T° surface Class Ta = 60°C 80°C T6 Ta = 70°C 95°C T5 Important : Maximum power dissipation in the case must not exceed 5 W 2015-05-26 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. Design and specifications subject to change without notice Yellow / green www.baumer.com Data sheet B31.12 Page 2 / 5 RTNE3 - RTAE3 Industrial temperature switch, direct mounting explosion proof Micro switches characteristics Switch code N (T) A (B) M (K) C (W) E (F) D (V) Type Tropicalized Standard Gold contact Hermetic Ultra sensitive Ultra sensitive Hermetic 6 Vdc 0.1 ... 8 A 0.4 ... 10 A 10 ... 50 mA 5 mA ... 4 A 0.4 ... 1 A 0.4 ... 4 A 12 Vdc 0.1 ... 8 A 0.4 ... 10 A 10 ... 50 mA 5 mA ... 4 A 0.4 ... 1 A 0.4 ... 4 A 24 Vdc 0.1 ... 8 A 0.4 ... 6 A 10 ... 50 mA 5 mA ... 4 A 0.4 ... 1 A 0.4 ... 4 A 30 Vdc 0.1 ... 8 A 0.4 ... 6 A 10 ... 10 mA 5 mA ... 3 A 0.4 ... 1 A 0.4 ... 2 A 48 Vdc 0.1 ... 8 A 0.4 ... 6 A 10 ... 50 mA 5 mA ... 3 A N/A N/A 110 Vdc N/A 0.1 ... 0.5 A 10 ... 50 mA 5 mA ... 1 A N/A N/A 220 Vdc N/A 0.1 ... 0.25 A 10 ... 50 mA 5 mA ... 0.5 A N/A N/A 115 Vac 0.1 ... 10 A 0.4 ... 10 A 10 ... 50 mA 50 mA ... 3 A 0.4 ... 10 A N/A 250 Vac 0.1 ... 5 A 0.2 ... 10 A 10 ... 10 mA 50 mA ... 2.5 A 0.2 ... 10 A N/A 2000 V 2000 V 2000 V 1500 V 2000 V 1000 V Dielectric rigidity between contacts and ground Adjustable ranges Micro-switch dead band 1) TMax Scale accidential Adjustable dead band Code N (T*) 10% °C A (B*) M (K*) 90% 10% E (F*) 90% D (V*) 10% 90% 10% 90% 2.25 1.2 7.5 3.7 °C 0 40 300 6 - 13 3 - 13 -20 ... 20 60 301 4.5 - 12 0 ... 45 60 302 6 - 13 40 ... 120 145 303 20 ... 80 100 315 -46 ... Fixed dead band C (W*) 12 - 18 6 - 18 2.2 - 12 9 - 15 6 - 15 1.5 0.75 6 3 3 - 13 10 - 18 6 - 18 2.25 1.05 7.5 3.7 7.5 - 24 4.5 - 24 15 - 30 9 - 30 3 1.8 9 6 7.5 - 18 4.5 - 18 13 - 22 7.5 - 22 3 1.5 9 4.5 (*) For version with 2 microswitches lower values of the dead band must be multiplied x 1.5 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 adjustable dead band the lower value corresponds to the dead band spring totally released and the higher corresponds to the dead band spring fully tensed. For other set points the dead band value can be calculated by linear interpolation between the values at 10% and 90%. 2015-05-26 Design and specifications subject to change without notice 1) www.baumer.com Data sheet B31.12 Page 3 / 5 RTNE3 - RTAE3 Industrial temperature switch, direct mounting explosion proof Dimensions (mm) Set point adjustment Differential adjustment Ø 194 56 (3x) Ø 9 on Ø 222 86 20 12 0° Weight of the housing : 4.4 kg 120° 116 RA 139 EE x d II C T 0° 6 12 Cable gland not mounted 121 Set point adjustment Differential adjustment Ø 194 Thermowell 116 RA 139 Thermowell for RTxx3 Stainless steel Ordering code : 10271317 EE x d II C T 6 Hex 29 22 20 3/4 NPT 3/4 BSP.TR 70 103 P= 135 G 3/8 Ø 18X16 2015-05-26 Design and specifications subject to change without notice Ø 14 www.baumer.com Data sheet B31.12 Page 4 / 5 RTNE3 - RTAE3 Industrial temperature switch, direct mounting explosion proof Ordering details RTNE3 - RTAE3 RT Model Industrial temperature switch RT Type of the bulb Copper alloy bulb Stainless steel bulb Approvals ATEX explosion proof Type of micro switches 1 SPDT standard changeover switch 2 SPDT standard changeover switch 1 SPDT hermetically changeover switch 2 SPDT hermetically changeover switch 1 SPDT ultra sensitive changeover switch 2 SPDT ultra sensitive changeover switch 1 SPDT hermetically, ultra sensitive changeover switch 2 SPDT hermetically, ultra sensitive changeover switch 1 SPDT gold contact changeover switch 2 SPDT gold contact changeover switch 1 SPDT tropicalized changeover switch 2 SPDT tropicalized changeover switch E – . 3xx . E 0 0 E J / – A N E Deadband Adjustable Adjustable Adjustable Adjustable Fix Fix Fix Fix Adjustable Adjustable Adjustable Adjustable A B C W E F D V M K N T Temperature range (°C) -46... 0 -20 ... 20 0 ... 45 40 ... 120 20 ... 80 . 300 301 302 303 315 . Type of design Direct mounting (TRD) Capillary length Without capillary Stem length P P=135 mm Bulb diameter Ø 14 mm Process connection G3/8 Options to be added behind the / (see example below) E 0 0 E J / Ordering example with options RT – A E A . 300 . E 0 0 E J / SETP _ 9941 Industrial temperature switch Design and specifications subject to change without notice Copper alloy bulb With ATEX explosion proof 1 SPDT standard changeover switch Temperature range -46 ... 0 °C TRD direct mounting Without capillary Immersion length P=135 mm Bulb diameter Ø 14mm Process connection G3/8 Option : Customer specific set point adjustment 2015-05-26 Option : Stainless steel tag plate and wire www.baumer.com Data sheet B31.12 Page 5 / 5