PRESSURE SWITCHES YTED/YTTN ATEX Ex ia System Main characteristics Safety module ATEX for hazardous areas Intrinsic Safety LCIE 03 ATEX 6078X I/II (M1) (1)G/D [Ex ia] I/IIC – [Ex iaD] Applications Process technic Hydraulic Pneumatic Refrigeration Water treatment Car industry Test benches Safety Aerospace Railways Shipbuilding Heavy vehicule Health care Biotechnology Food Beverage Pharmaceutical Petro-chemical Chemical HVAC Energy Medical gas Agriculture vehicules Pumps and compressors Module with 2 threshold outputs, active or passive 4 ... 20 mA output, power supply PROFSI3 The PROFSI3-B25091-ALG-YT module, with intrinsic safety analogue interface makes it possible to connect a series YT thermostat or pressure switch in input, while ensuring safety between the danger zone (at risk of explosion) and the safe area through galvanic isolation. The module provides excitation for the YT pressure switch/thermostat; the galvanically isolated input signal recopy is active or passive depending on the connection chosen. The 2 thresholds defined on the YT pressure switch/thermostat are available on relays. Banana jacks on front panel can be used for the 4-20 mA recopy loop test. Power supply to the module can be AC or DC on a wide range. Special conditions for safe use: The PROFSI3-B25091-ALG-YT module is an apparatus complying with ATEX Directive 94/9/EC No. LCIE 03 ATEX 6078X. General marking I/II (M1) (1)G/D [Ex ia] I/IIC – [Ex iaD] Ambient temperature : - 20°C ≤ Ta ≤ + 60°C Category (M1) or (1)D or (1)G This apparatus is an intrinsically safe associated material; it must not be installed in an explosive area. It can be connected to equipment installed in areas 0,1, 2 - gas (G), or areas 20, 21, 22 - dust (D). www.baumer.com/process Design and specifications subject to change without notice Data sheet A31.04 Page 1 Model / PROFSI3 type module Technical data Supply voltage Consumption 4 ... 20 mA signal recopy Relay outputs Threshold states DC from 22VDC to 120VDC 50 or 60Hz AC from 90 to 253VAC Power supply 3 VA Max. ambient temperature Optoelectronically isolated Accuracy of the isolated recopy 0.1% Recommended ambient T° Maximum load 600 Ω Storage temperature Transfer time < 5ms Dimensions Thermal drift zero: 50ppm/°C Thermal drift gain: 50ppm/°C Residual ripple ± 50mV 1 work contact per threshold 1 common to the 2 thresholds Breaking capacity for cosφ =1 - 4A at 250VAC - 4A at 30VDC Breaking capacity for cosφ =0.4 - 1.5A at 250VAC - 1.5A at 30VDC Breaking capacity max 500VAC Contact resistance max. 100mΩ for 100,000 operations min. for 20,000,000 operations min. Mounting LED display on front panel for each threshold Front panel LED - 20 ... + 60°C - 20 ... + 50°C - 40 ... + 80°C Depth : 120 mm Height : 90 mm Width : 29 mm Symmetric hat profile rail mounting Connection by pull-out terminals Module power distribution by plug-in flat cable unit Ordering Information - PROFSI3 Module Item number : PROFSI3-B25091-ALG-YT Order code : 0602 www.baumer.com/process Design and specifications subject to change without notice Data sheet A31.04 Page 2 Installation diagram Connections of input - CN1 Connections of input - CN2 Connection to YT... pressure switch or thermostat Active 4 ... 20 mA recopy Danger area Threshold 1 Threshold 2 YT... thermostat or pressure switch Safe area black PROFSI3-...-YT Threshold 1 white Threshold 2 blue 7 6 5 4 3 2 1 > Threshold 1 > Common > Threshold 2 Shield (earth) > - active 4-20mA > + isolated output brown Passive 4 ... 20 mA recopy PROFSI3-...-YT 7 6 5 4 3 2 1 > > > Threshold 1 Common Threshold 2 Shield (earth) > - passive 4-20mA > + isolated output The passive 4 ... 20 mA output may be connected to a 6-28 VDC circuit. Voltage drop at 22mA 6V. To ensure proper operation, it is imperative to connect the recopy to a load. If recopy is not necessary, make a short circuit between 1 and 2. Front access to check 4 ... 20 mA loop A flat-cable unit is used to distribute power supply from one PROFSI3 module to the next. All terminals are removable. 2mm banana jacks on front panel for 4 ... 20 mA recopy loop test without 10mV/mA opening. CN3/4 Power supply connections - CN3/CN4 90-253VAC L 22-120VDC EARTH N Caution All modules are equipped with 2 pull-out 3-point connectors (L N) for power supply wiring: one for input and one output terminal for bridging to another module using the 3-point flat cable supplied. To prevent electric shocks, it is imperative that these terminals are always connected. If only one of these connectors is used (no bridging to another module), the other one must be closed by the blind 3-point plastic cap supplied with the product. Mimic diagram of connections Danger area thermostat or pressure switch YT... Safe area D C B A 5 67 > Threshold 2 > Common > Threshold 1 L/+ Auxiliary power N/Passive recopy in 2/3 1 2 34 Shield (earth) > - active 4-20mA isolated output isolée > + sortie earth www.baumer.com/process Design and specifications subject to change without notice Data sheet A31.04 Page 3 Connecting cable The cable is suitable for use in a hazardous ATEX Ex ia area. It allows the connection from the YTED/YTTN to the PROFSI3B25091-ALG-YT module. Characteristics M12 5-pin removable metal connector + 4-wire shielded cable Code de commande Code 0623 0624 0625 Length (m) 20 50 100 The system can be equipped with an approved junction box or in compliance with the requirements of the standards EN60079-1 and EN60079-11. Dimensions Order code 127 x 81 x 57 mm 0603 www.baumer.com/process Design and specifications subject to change without notice Data sheet A31.04 Page 4 UK/01-2011 This data sheet may only be reproduced in full Junction box