RDE6 Differential pressure switch, explosion proof for variable static pressure Main Features Excellent repeatability Dead band adjustment for regulation Fix dead band for control and alarm Static pressure max. 20 bar No influence of the static pressure on the setpoint Explosion proof Hazardous areas 1, 2, 21, 22 Applications Power generation safety equipment Pressurized chambers control Liquid level control Technical Data 10 ... 200 mbar to 10 ... 2000 mbar Temperature Process : -15 ... +150°C Ambient : -20 ... +55°C Storage : -40 ... +70°C Repeatability ± 1% F.S. @ constant pressure cycle CE conformity Low Voltage Directive LVD 2006/95/EC Pressure Equipment Directive PED 97/23/EC ATEX Directive 94/9/EC Protection rating IP 66 (EN 60529) Process Connection Stainless steel 1.4404 (316L) Sensing element Pressure range codes 156 to 163 Flanges :Stainless steel 1.4404 (316L) Diaphragm :Viton® Scale 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. The adjustment is not influenced by changes of the static pressure. ATEX 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) Design and specifications subject to change without notice Pressure range Options Code SETP Oxygen application Code 0765 Lead seal of the adjustment screws Code 8990 Mounting on 2" pipe Code 0407 Stainless steel tag plate and wire Code 9941 2015-05-26 Customer specific set point adjustment www.baumer.com Data sheet A32.43 Page 1 / 5 RDE6 Differential pressure switch, explosion proof for variable static pressure Principle ∆P A 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 C C NC C NO NO NO HP > LP HP < LP 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 pressure NC C NO NC NC C C Customer speciffic factory adjustment (option SETP) The following specifications have to be given with the order: • Setpoint value • Adjustment on falling or raising pressure. • Dead band value when using an adjustable dead band switch NO NO 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 A32.43 Page 2 / 5 RDE6 Differential pressure switch, explosion proof for variable static pressure Micro switches characteristics Switch code Type N (T) A (B) M (K) C (W) E (F) D (V) Tropicalized Standard Gold contact Hermetic Ultra sensitive Ultra sensitive Hermetic 6 Vdc 0.1... 8A 0.4... 10 A 10... 50 mA 5 mA ... 4 A 0.4... 1A 0.4... 4A 12 Vdc 0.1... 8A 0.4... 10 A 10... 50 mA 5 mA ... 4 A 0.4... 1A 0.4... 4A 24 Vdc 0.1... 8A 0.4... 6A 10... 50 mA 5 mA ... 4 A 0.4... 1A 0.4... 4A 30 Vdc 0.1... 8A 0.4... 6A 10... 10 mA 5 mA ... 3 A 0.4... 1A 0.4... 2A 48 Vdc 0.1... 8A 0.4... 110 Vdc 220 Vdc 6A 10... 50 mA 5 mA ... 3 A N/A N/A N/A 0.1... 0.5 A 10... 50 mA 5 mA ... 1 A N/A N/A N/A N/A N/A 0.1... 0.25 A 10... 50 mA 5 mA ... 0.5 A 115 Vac 0.1... 10 A 0.4... 10 A 10... 50 mA 50 mA ... 3 A 250 Vac 0.1... 5A 0.2... 10 A 10... 10 mA 2000 V Dielectric rigidity between contacts and ground 2000 V 2000 V 0.4... 10 A N/A 50 mA ... 2.5 A 0.2 ... 10 A N/A 1500 V 2000 V 1000 V Adjustable ranges Scale mbar Max ΔP Max P Static Micro-switch dead band 1) Adjustable dead band Code N (T*) A (B*) 10% M (K*) 90% Fixed dead band C(W*) 10% E(F*) 90% D (V*) 10% 90% 10% 90% mbar bar 10 ... 200 200 20 156 12 - 120 15.5 - 120 52 - 120 67 - 120 3.75 5.1 15 19.5 10 ... 400 400 20 157 22 - 225 30 - 225 60 - 225 75 - 225 6.75 9 27 36 1000 20 158 27 - 225 33 - 225 67 - 225 90 - 225 7.5 10.5 33 40 10 ... 700 700 20 161** 45 - 375 67 - 375 195 - 675 225 - 675 19.5 22.5 54 81 10 ... 1500 1500 20 162** 45 - 450 67 - 450 195 - 675 225 - 675 19.5 22.5 54 81 10 ... 2000 2000 20 163** 67 - 450 135 - 450 270 - 675 450 - 675 27 37.5 81 162 10 ... 1000 mbar (*) For version with 2 microswitches lower values of the dead band must be multiplied x 1.5 (**) G 1/4 female only 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 A32.43 Page 3 / 5 RDE6 Differential pressure switch, explosion proof for variable static pressure Dimensions (mm) Set point adjustment Differential adjustment 56 (3x) Ø 9 on Ø 222 86 20 Ø 194 12 Weight : 4.4 kg 0° 120° 116 RA 139 EE x d II C T 0° 6 12 Cable gland not mounted 121 Pressure range codes : 156 - 157 - 158 Weight : 4.4 kg Pressure range codes : 161 - 162 - 163 Weight : 3.3 kg G 1/2 (M) LP Hex 24 HP 48 HP 109 29,5 LP Ø100 2015-05-26 Design and specifications subject to change without notice G 1/2 (M) 2 holes G 1/4 (F) 100 Ø 148 www.baumer.com Data sheet A32.43 Page 4 / 5 RDE6 Differential pressure switch, explosion proof for variable static pressure Ordering details RDE6 RD E Model Differential pressure switch for variable static pressure Approvals Explosion proof Sensing element Diaphragm (Viton®) 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 Process connection G 1/4 female (only pressure ranges 161, 162, 163) G 1/2 male (standard) 1/2 NPT male 1/4 NPT female Pressure range (mbar) Pressure range (kPa) 2 ... 10 0.2 ... 1 2 ... 20 0.2 ... 2 2 ... 50 0.2 ... 5 2 ... 100 0.2 ... 10 10 ... 200 1 ... 20 10 ... 400 1 ... 40 10 ... 1000 1 ... 100 10 ... 700 1 ... 70 10 ... 1500 1 ... 150 10 ... 2000 1 ... 200 Options to be added behind the / (see example below) – 6 . xxx / RD E – 6 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 H 3 6 8 . 111 112 121 131 156 157 158 161 162 163 Process connection G1/4 female Process connection G1/4 female Process connection G1/4 female / Ordering example with options RD E – 6 C 3 . 111 / 0407 _ 9941 Differential pressure switch for variable static pressure With ATEX approval explosion proof Sensing element diaphragm Design and specifications subject to change without notice 1 SPDT hermetically changeover switch Process connection G 1/2 male Pressure range 2 ... 10 mbar Option : Mounting on 2" pipe 2015-05-26 Option : Stainless steel tag plate and wire www.baumer.com Data sheet A32.43 Page 5 / 5