RDE5 Differential pressure switch, explosion proof for high static pressure Main Features Excellent repeatability Dead band adjustment for regulation Fix dead band for control and alarm High static pressure Explosion proof Hazardous areas 1, 2, 21, 22 Applications Power generation safety equipment Pressurized chambers control Liquid level control Technical Data Pressure range 2 ... 10 mbar to 10 ... 2000 mbar Ground connection Via internal terminal block Temperature Process : -15 ... +150°C Ambient : -20 ... +55°C Storage : -40 ... +70°C Electrical connection Terminal block with metallic cable gland for Ø 7 to 12 mm standard Repeatability ± 1% F.S. @ constant pressure cycle Electrical function See ordering code details on page 5 CE conformity Low Voltage Directive LVD 2006/95/EC Pressure Equipment Directive PED 97/23/EC ATEX Directive 94/9/EC Adjustment Protection rating IP 66 (EN 60529) 2 external adjustment screws for set point and deadband. When set point adjustment is required it is necessary to know the static pressure, as it has an influence on the set point. 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 Sensing element Pressure range codes 111 to 131 Flanges :Stainless steel 1.4404 (316L) Diaphragm : Nitrile Butyl rubber 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 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 Process Connection Stainless steel 1.4404 (316L) 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 A32.23 Page 1 / 5 RDE5 Differential pressure switch, explosion proof for high 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 NO NO Customer speciffic factory adjustment (option SETP) The following specifications have to be given with the order: • Setpoint value • Adjustment on falling or raising pressure. • Static pressure • 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 A32.23 Page 2 / 5 RDE5 Differential pressure switch, explosion proof for high 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 Max ΔP Max P Static mbar mbar bar 2 ... 10 10 0 ... 5 2 ... 20 50 2 ... 50 50 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 111 1.8 - 15 2.4 - 15 6.7 - 15 6.7 - 15 0.45 0.6 2.25 3 0 ... 5 112 2.6 - 30 3.3 - 30 7.5 - 30 8 - 30 0.6 0.75 3 4.5 0 ... 5 121 2.6 - 40 3.3 - 40 7.5 - 40 8 - 40 0.6 0.75 3 4.5 2 ... 100 100 0 ... 5 131 2.6 - 60 3.7 - 60 8.2 - 60 15 - 60 0.75 1.05 3 4.5 10 ... 200 200 5.5 ... 50 156 12 - 120 15.5 - 120 52 - 120 67 - 120 3.75 5.1 15 19.5 10 ... 400 400 5.5 ... 50 157 22 - 225 30 - 225 60 - 225 75 - 225 6.75 9 27 36 10 ... 1000 1000 5.5 ... 50 158 27 -225 33 - 225 67 - 225 90 - 225 7.5 10.5 33 40 10 ... 700 700 5.5 ... 80 161** 30 - 300 45 - 300 90 - 525 135 - 525 9 12 36 54 30 - 450 45 - 450 90 - 525 150 - 525 9 12 36 54 40 - 450 90 - 450 135 - 525 300 - 525 13 18 54 108 10 ... 1500 1500 5.5 ... 80 162** 10 ... 2000 2000 5.5 ... 80 163** (*) 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 A32.23 Page 3 / 5 RDE5 Differential pressure switch, explosion proof for high static pressure Dimensions (mm) Set point adjustment Differential adjustment 56 (3x) Ø 9 on Ø 222 86 20 Ø 194 Weight : 4.4 kg 12 0° 120° 116 RA x d II C T 0° 6 12 Cable gland not mounted 121 Pressure range codes : 111 - 112 - 121 - 131 Weight : 8.8 kg Pressure range codes : 156 - 157 - 158 Weight : 4.7 kg 1/2 NPT(M) 48 G 1/2(M) LP LP Hex 24 94 Ø 260 56 83 Hex 24 Ø 148 Hex 24 HP HP 1/2 NPT(M) 88 139 EE Hex 24 76.5 G 1/2(M) 95 Pressure range codes : 161-162-163 Weight : 5.4 kg Design and specifications subject to change without notice 28.5 97 LP 36 HP Ø120 2015-05-26 2 holes G 1/4 (F) Hex 24 www.baumer.com Data sheet A32.23 Page 4 / 5 RDE5 Differential pressure switch, explosion proof for high static pressure Ordering details RDE5 RD E Model Differential pressure switch Approvals Explosion proof Sensing element Diaphragm (Nitrile Butyl rubber, ranges 111 to 131, Viton®, ranges 156 to 163) 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) – 5 . xxx / RD E – 5 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 – 5 C 3 . 111 / 0407 _ 9941 Differential pressure switch 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 A32.23 Page 5 / 5