RDN5 Differential pressure switch for high static pressure Main Features Excellent repeatability Dead band adjustment for regulation Fix dead band for control and alarm High static pressure up to 80 bar Applications Power generation safety equipment Pressurized chambers control Liquid level control Technical Data Pressure range 2 ... 10 mbar to 10 ... 2000 mbar Case Black Zamak Temperature Process: Ambient: Storage: Mounting Wall mounting braket Ground connection Via internal terminal block Electrical connection Terminal block with plastic cable gland : - cable Ø 7 to 10.5 mm Electrical function See ordering code details in page 5 Adjustment 2 external adjustment screws for set point and dead band. When set point adjustment is required it is necessary to know the static pressure, as it has an influence on the set point. -15 ... +150 °C -25 ... + 55 °C -40 ... + 70 °C Repeatability ± 1% F.S. / constant pressure cycle CE conformity Low Voltage Directive LVD 2006/95/EC Protection rating IP 66 (EN 60529) Process Connection Stainless steel 1.4404 (316L) Sensing element Scale Cover 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® Internal. Accuracy on reading ± 5% F.S. Zamak blue painted Captive stainless steel screws Code SETP Oxygen application Code 0765 Mounting on 2" pipe Code 0407 Stainless steel tag plate and wire Code 9941 Lead seal of the adjustment screws Code 8990 Mobile plug for stainless steel connector (Souriau) Code 2249 Electrical connection: stainless steel connector (Souriau) Code 2298 2015-11-12 Customer specific set point adjustment Design and specifications subject to change without notice Options www.baumer.com Data sheet A32.44 Page 1 / 5 RDN5 Differential pressure switch 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. LP NC NC NC C C C NO NO LP 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 NC NC C C NO 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 (as needed) when using an adjustable dead band switch Electrical connections 2 SPDT 1 SPDT NC Blue COM Red NO White NC Blue COM Red NO Yellow / green NC COM NO White Blue Red White 2015-11-12 Design and specifications subject to change without notice Yellow / green www.baumer.com Data sheet A32.44 Page 2 / 5 RDN5 Differential pressure switch for high static pressure Micro switches characteristics Switch code Type 6 Vdc A (B) M (K) C (W) E (F) H D (V) J Standard Gold contact Hermetic Ultra sensitive Manual reset Ultra sensitive hermetic Manual reset 10... 50 mA 5 mA ... 4 A 0.4... 10 A 0.4... 1A N/A 0.4... N/A 12 Vdc 0.4... 10 A 10... 50 mA 5 mA ... 4 A 0.4... 1A 0.4... 4A 24 Vdc 0.4... 6A 10... 50 mA 5 mA ... 4 A 0.4... 1A 0.1... 8A 0.4... 4A 0.1... 8A 30 Vdc 0.4... 6A 10... 10 mA 5 mA ... 3 A 0.4... 1A 0.1... 8A 0.4... 2A 0.1... 8A 48 Vdc 0.4... 6A 10... 50 mA 5 mA ... 3 A N/A 0.1... 8A 0.1... 8A 110 Vdc 0.1... 0.5 A 10... 50 mA 5 mA ... 1 A N/A 220 Vdc 0.1... 0.25 A 10... 50 mA 5 mA ... 0.5 A 115 Vac 0.4... 10 A 10... 50 mA 50 mA ... 3 A 250 Vac 0.2... 10 A 10... 50 mA 2000 V Dielectric rigidity between contacts and ground 2000 V N/A 4A N/A N/A N/A 0.4... N/A N/A N/A N/A N/A N/A 10 A 0.1... 10 A N/A 0.1... 10 A 50 mA ... 2.5 A 0.2 ... 10 A 0.1... 5A N/A 0.1... 5A 1500 V 2000 V 2000 V 1000 V 2000 V Adjustable ranges mbar mbar Max P Static Micro-switch dead band (1) Adjustable dead band Code A (B*) 10% bar M (K*) 90% Fixed dead band C(W*) 10% E(F*) 90% 10% H 90% 10% D (V*) J 90% mbar 2 ... 10 10 0 to 5 111 1.2 - 10 1.6 - 10 4.5 - 10 4.5 - 10 0.3 0.4 1.5 2 2 ... 20 50 0 to 5 112 1.7 - 20 2.2 - 20 5 - 20 5.5 - 20 0.4 0.5 2 3 2 ... 50 50 0 to 5 121 1.7 - 30 2.2 - 30 5 - 30 5.5 - 30 0.4 0.5 2 3 2 ... 100 100 0 to 5 131 1.7 - 40 2.5 - 40 5.5 - 40 10 - 40 0.5 0.7 2 3 10 ... 200 200 5.5 to 50 156 8 - 80 10.5 - 80 35 - 80 45 - 80 2.5 3.4 10 13 10 ... 400 400 5.5 to 50 157 15 - 150 20 - 150 40 - 150 50 - 150 4.5 6 18 24 10 ... 1000 1000 5.5 to 50 158 18 - 150 22 - 150 40 - 150 60 - 150 5 7 22 26.5 10 ... 700 700 5.5 to 80 161** 20 - 200 30 - 200 60 - 350 90 - 350 6 8 24 36 10 ... 1500 1500 5.5 to 80 162** 20 - 300 30 - 300 60 - 350 100 - 350 6 8 24 36 10 ... 2000 2000 5.5 to 80 163** 30 - 300 60 - 300 90 - 350 200 - 350 9 12 36 72 (*) For version with 2 microswitches lower values of the dead band must be multiplied x 1.5 (**) G1/4 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%. 2015-11-12 (1) Design and specifications subject to change without notice Scale Max ΔP www.baumer.com Data sheet A32.44 Page 3 / 5 RDN5 Differential pressure switch for high static pressure Dimensions (mm) 125 76.5 = 144 139 = 5 64 100 58 130 76.5 45° 130 Pressure range codes: 156-157-158 Weight: 6.1 kg Pressure range codes: 111-112-121-131 Weight: 10.2 kg 48 G1/2(M) LP Hex 24 Ø 148 HP 83 94 Hex 24 Ø 260 56 LP 88 G 1/2(M) Hex 24 Hex 24 130 HP G 1/2(M) 76.5 G1/2(M) 95 Pressure range codes: 161-162-163 Weight: 6.8 kg Design and specifications subject to change without notice 28.5 97 LP 36 HP Ø120 2015-11-12 2 holes G 1/4 (F) Hex 24 www.baumer.com Data sheet A32.44 Page 4 / 5 RDN5 Differential pressure switch for high static pressure Ordering details RDN5 RD N Model Differential pressure switch for high static pressure Approvals Standard version without ATEX approval 5 . xxx / RD N Sensing element Diaphragm (Nitrile Butyl rubber, ranges 111 to 131, Viton ®, ranges 156 to 163) Type of micro switches Deadband 1 SPDT standard changeover switch Adjustable 2 SPDT standard changeover switch Adjustable 1 SPDT hermetically changeover switch Adjustable 2 SPDT hermetically changeover switch Adjustable 1 SPDT ultra sensitive changeover switch Fix 2 SPDT ultra sensitive changeover switch Fix 1 SPDT hermetically, ultra sensitive changeover switch Fix 2 SPDT hermetically, ultra sensitive changeover switch Fix 1 SPDT gold contact changeover switch Adjustable 2 SPDT gold contact changeover switch Adjustable 1 SPDT changeover switch, manual reset, opening on raising pressure Fix 1 SPDT changeover switch, manual reset, opening on falling pressure Fix Pneumatic changeover contact, NO Pneumatic changeover contact, NC 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 A B C W E F D V M K H J Z Y 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 N – 5 C 3 . 111 / 0407 _ 9941 Design and specifications subject to change without notice Differential pressure switch for high static pressure Without ATEX approval Sensing element diaphragm 1 SPDT hermetically changeover switch Process connection G 1/2 male Pressure range 2 ... 10 mbar Option: Mounting on 2" pipe 2015-11-12 Option: Stainless steel tag plate and wire www.baumer.com Data sheet A32.44 Page 5 / 5