RDY6 Differential pressure switch with intrinsic safety for variable static pressure Main Features Excellent repeatability Dead band adjustment for regulation Fix dead band for control and alarm Intrinsic safety Hazardous area 0, 1, 2 Static pressure max. 20 bar No influence of the static pressure on the setpoint Applications Power generation safety equipment Pressurized chambers control Liquid level control Technical Data Pressure range 10 ... 200 mbar to 10 ... 2000 mbar Electrical function See ordering code details on page 5 Temperature Process : -15 ... +150°C Ambient : -25 ... +55°C Storage : -40 ... +70°C Adjustment Repeatability ± 1% F.S. @ constant pressure cycle 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. CE conformity Low Voltage Directive LVD 2006/95/EC Pressure Equipment Directive PED 97/23/EC ATEX Directive 94/9/EC ATEX Protection rating IP 66 (EN 60529) Type examination certificate LCIE 03 ATEX 6123X 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 = 28 Vdc Imax = 120 mA Pmax = 0.84 W Sensing element Flanges :Stainless steel 1.4404 (316L) Diaphragm : Viton® Scale Internal. Accuracy on reading ± 5% FS Cover Case Zamak blue painted Captive stainless steel screws Black Zamak Mounting Wall mounting braket Ground connection Via internal terminal block Electrical connection Terminal block with plastic cable gland for Ø 7 to 10.5 mm Ci = Negligible ; Li = Negligible Design and specifications subject to change without notice Process connection Stainless steel 1.4404 (316L) Options Code SETP Oxygen application Code 0765 Mounting on 2" pipe Code 0407 Electrical connection : stainless steel connector (Souriau) Code 2298 Mobile plug for stainless steel connector (Souriau) Code 2249 Stainless steel tag plate and wire Code 9941 Lead seal of the adjustment screws Code 8990 2015-04-14 Customer specific set point adjustment www.baumer.com Data sheet A32.42 Page 1 / 5 RDY6 Differential pressure switch with intrinsic safety 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 NC C C C NO NO HP < LP NO 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 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 Blue COM Red NO White NC Blue COM Red NO White NC Blue COM Red Yellow / green NO White Yellow / green Certified safety barrier NO C Non hazardous area NO or NC NC + Rc 1 Supply – Screen For max. ambient temperature 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. 2015-04-14 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 Hazardous area Zone 0, 1, 2 www.baumer.com Data sheet A32.42 Page 2 / 5 RDY6 Differential pressure switch with intrinsic safety for variable static pressure Micro switches characteristics Switch code N (T) M (K) C (W) S Type Tropicalized Gold contact Hermetic Ultrasensitive Gold contact 6 Vdc 0.1 ... 0.12 A 10 ... 50 mA 5 ... 120 mA 10 ... 50 mA 12 Vdc N/A 10 ... 50 mA 5 ... 66 mA 10 ... 50 mA 24 Vdc N/A 10 ... 33 mA 5 ... 33 mA 10 ... 33 mA 30 Vdc N/A N/A N/A N/A 48 Vdc N/A N/A N/A N/A 110 Vdc N/A N/A N/A N/A 220 Vdc N/A N/A N/A N/A 115 Vac N/A N/A N/A N/A 250 Vac Dielectric rigidity between contacts and ground N/A N/A N/A N/A 2000 V 2000 V 1500 V 2000 V Adjustable ranges Scale mbar 10 ... 200 Max ΔP Max P Static Micro-switch dead band 1) Adjustable dead band Code N (T*) M (K*) Fixed dead band C(W*) 10% 90% 10% S 90% 10% 90% mbar bar 200 20 156 8 - 80 10.5 - 80 35 - 80 45 - 80 5.8 9.5 157 15 - 150 20 - 150 40 - 150 50 - 150 10.5 17 mbar 10 ... 400 400 20 10 ... 1000 1000 20 158 18 - 150 22 - 150 45 - 150 60 - 150 11.5 19.6 10 ... 700 700 20 161** 30 - 250 45 - 250 130 - 450 150 - 450 27.5 34 10 ... 1500 1500 20 162** 30 - 300 45 - 300 130 - 450 150 - 450 27.5 34 10 ... 2000 2000 20 163** 45 - 300 90 - 300 180 - 450 300 - 450 31 50 (*) 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%. 2015-04-14 Design and specifications subject to change without notice 1) www.baumer.com Data sheet A32.42 Page 3 / 5 RDY6 Differential pressure switch with intrinsic safety for variable static pressure Dimensions (mm) 125 76.5 = 144 139 = 58 130 5 64 100 45° Pressure range codes : 156 - 157 - 158 Weight : 6.6 kg Pressure range codes : 161 - 162 - 163 Weight : 7 kg 130 144 76,5 28,5 G 1/2 (M) LP HP 109 LP Ø100 2015-04-14 Design and specifications subject to change without notice 48 29,5 100 G 1/2 (M) HP 2 holes G 1/4 (F) Hex 24 Ø 148 www.baumer.com Data sheet A32.42 Page 4 / 5 RDY6 Differential pressure switch with intrinsic safety for variable static pressure Ordering details RDY6 RD Model Differential pressure switch for variable static pressure Approvals ATEX intrinsic safety Sensing element Diaphragm (Viton ®) Type of micro switches 1 SPDT hermetically changeover switch 2 SPDT hermetically changeover switch 1 SPDT gold contact changeover switch 2 SPDT gold contact changeover switch 1 SPDT tropicalized changeover switch 2 SPDT tropicalized changeover switch 1 SPDT ultrasensitive gold contact 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) 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) Y – 6 . xxx / RD Y – 6 Deadband Adjustable Adjustable Adjustable Adjustable Adjustable Adjustable Fix C W M K N T S H 3 6 8 . 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 Y – 6 C 3 . 156 / 0407 _ 9941 Differential pressure switch With ATEX approval intrinsic safety Sensing element diaphragm 1 SPDT hermetically changeover switch Process connection G 1/2 male Pressure range 10 ... 200 mbar Option : Mounting on 2" pipe 2015-04-14 Design and specifications subject to change without notice Option : Stainless steel tag plate and wire www.baumer.com Data sheet A32.42 Page 5 / 5