Safety Barriers. CEAG safety barriers can be used for all kinds of instrumentation applications.

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1 Safety Barriers Description Safety barriers limit the energy fed to an intrinsically safe circuit so that neither sparks nor thermal effects (hot surfaces) can cause an explosion. CEAG safety barriers can be used for all kinds of instrumentation applications. Digital inputs Digital outputs Analog inputs Analog outputs Temperature sensors Pressure transmitters etc. Plug in barrier to be installed on a backplane Backplane snaps on standard 5 mm DIN rail Optional replaceable fuses LEDs show barrier status Cage clamp connections need no screws Easy installation General purpose and customized backplanes for easy installation Large tagging areas for easy circuit identification Mounts horizontally or vertically International approvals Safety or zener barriers generally have to be connected to equipotential earth. Each barrier connects to this high intergrity ground. The new plug type barrier has a back plane for 10 modules with a single connection to equipotential earth. By plugging the barriers into the back plane, each of them will automatically be earthed. The new safety barriers are fitted with replaceable upstream fuses. Should the polarity be confused or the operating voltage be inadmissibly high, the upstream fuse is there to protect the internal fuse and thus the valuable barrier from being destroyed. The upstream fuse may be replaced during operation. Supply barriers are fitted with an LED which indicates the proper state of the barrier. When installing the barrier, care has to be taken that the polarity of the chosen barrier matches the circuit. The rated voltage must not be exceeded in operation, since that would result in measuring faults. Account has to be taken of the voltage drop over the end to end resistor of the barrier. A correct transmission of voltage signals can only be achieved with purely ohmic end to end resistors. For safety reasons, the maximum values for current, voltage, inductance and capacitance of the barrier have to be checked to match the data of the connected intrinsically safe circuit. CEAG Apparatebau Hundsbach GmbH & Co. KG 78

2 Safety Barriers Safety barrier Product features Simple wiring save wiring through backplane technology the PCB connects all barriers to equipotential earth Explosion protection EEx ia/ib IIC Terminology Operating data V N Rated maximum voltage < 2 µa for V < V N R max End to end resistance Internal fuse S i Simple mounting Power supply LED plugin barriers cage clamp wiring replaceable fuses large tagging area dual ground Backplane mounting by 5 mm top hat rail Safety parameters (in intrinsically safe ciruits) V oc Maximum open circuit voltage I sc Maximum short circuit current C a Maximum permissible external capacitance Maximum permissible external inductance Technical data: Leakage current at V N < 2 µa Temperature drift 250 x 10 6 / K Operating temperature 40 C C Storage temperature range 40 C C Relative humidity < 75 % (annual averrage) < 95 % (0 d/a), no condensation Width see dimensions page 87 Weigth approx. 70 g L a Explosion protection: Approval TÜV 99 ATEX 1449 X Ordering details Single barrier socket Description Type Order No. Standard socket (backplane) for 1 barrier SB 9101 GHG W9101 Standard socket (backplane) for 10 barriers SB 9100 GHG W9100 replaceable fuse 6 ma SB 9201 GHG W9201 replaceable fuse 100 ma SB 9202 GHG W9202 replaceable fuse 125 ma SB 920 GHG W920 replaceable fuse 160 ma SB 9204 GHG W9204 replaceable fuse 250 ma SB 9205 GHG W9205 Note 10 fold backplane segment Barriers will be supplied without sockets. Please order socket separately. All barriers can be ordered using the type number or the full order no. GHG... CEAG Apparatebau Hundsbach GmbH & Co. KG 79

3 Safety Barriers Safety barriers 1 2 DC barrier positive negative Type V N R max Fuse V OC I SC Drawing LED Order No. (V) (Ω) (ma) (V) (ma) No. SB GHG W0710 SB GHG W1710 SB GHG W710 SB GHG W4710 SB X GHG W715 SB X GHG W4715 SB X GHG W0715 SB X GHG W1715 SB GHG W722 SB GHG W4722 SB GHG W0722 SB GHG W1722 SB X GHG W729 SB X GHG W4729 SB X GHG W728 SB X GHG W4728 SB X GHG W0728 SB X GHG W1728 DC double SB150 10/10 84/ ,7/11,7 174/25 GHG W150 SB50 10/10 84/ ,7/11,7 174/25 GHG W50 SB151 10/10 487/ ,7/11,7 25/25 GHG W151 SB51 10/10 487/ ,7/11,7 25/25 GHG W51 SB / / /12 12/12 GHG W0764 SB / / /12 12/12 GHG W1764 SB /12 159/ /15 150/150 X GHG W0767 SB /12 159/ /15 150/150 X GHG W1767 SB /19 198/ /22 147/147 GHG W0768 SB /19 198/ /22 147/147 GHG W1768 SB0796 /17 49/ /20 87/51 GHG W0796 SB1796 /17 49/ /20 87/51 GHG W1796 SB /6 97/ /10 200/9 X GHG W0788 SB /6 97/ /10 200/9 X GHG W1788 SB /24 7/ /28 9/9 X GHG W0779 SB /24 7/ /28 9/9 X GHG W1779 Note Barriers will be supplied without sockets. Please order socket separately. All barriers can be ordered using the type number or the full order no. GHG... CEAG Apparatebau Hundsbach GmbH & Co. KG 80

4 Safety Barriers Safety barriers 4 5 DC Floating DC double with return 1 11 Type V N R max Fuse V OC I SC Drawing LED Order No. (V) (Ω) (ma) (V) (ma) No. SB101 6/ , GHG W101 SB102 9/ , GHG W102 SB10 12/ , GHG W10 SB /24 1,2 V4/289 Ω 50 26,/26, 0/102 5 X GHG W2427 SB /24 1,2 V44/265 Ω 50 28/28 0/120 5 X GHG W2787 SB /24 1,2 V44/7 Ω 50 28/28 0/9 5 X GHG W DC double return SB /24 1,2 V 44 Ω/ 50 28/28 0/0 6 GHG W0786 1,2 V 44 Ω 7 SB ,2 V 4 Ω 50 16, GHG W AC standard SB GHG W2710 SB , GHG W AC double SB0201 2/2 8/ /5 178/178 9 GHG W0201 SB0761 6/6 145/ /9 100/100 9 GHG W0761 SB1761 7/7 94/ /9 25/25 9 GHG W1761 SB1766 9,8/9,8 10/ /12 160/160 9 GHG W1766 SB /10 194/ /12 80/80 9 GHG W0766 SB / / /12 12/12 9 GHG W2764 universal 10 SB0760 6/6 97/ /10 200/ GHG W0760 SB /12 147/ /15 150/ GHG W0765 SB /18 5/ /22 7/7 10 GHG W0772 SB /24 66/ /28 47/47 10 GHG W0778 Note Barriers will be supplied without sockets. Please order socket separately. All barriers can be ordered using the type number or the full order no. GHG... CEAG Apparatebau Hundsbach GmbH & Co. KG 81

5 Safety Barrier Applications Digital input Floating circuit Power supply voltage: 24 V DC Endtoend resistance 09 Ω 1,2 V (SB2787) Short circuit proof 24 V DI SB2427 or SB2787 Analog input (4 20 ma transmitters) Floating circuit safety barrier circuit Lowest possible barrier voltage drop: 7,66 V maximum at 20 ma Power supply voltage: 24 V DC No restrictions for programming SMART transmitters Smallest IS barrier available 24 V SB2427 or SB2787 AI (load) CEAG Apparatebau Hundsbach GmbH & Co. KG 82

6 Safety Barrier Applications Digital output (solenoid valves, LEDs or audible alarms) Grounded circuit 1 channel, group IIC (SB0728) Power supply voltage: to 24 V DC Endtoend resistance: 40 Ω Short circuit Smallest IS barrier available 24 V DC 1 11 SB0728 oder SB1240 Grounded 2 channel, group IIC Power supply voltage: to 24 V DC Endtoend resistance 40 Ω/channel Short circuit proof Smallest IS barrier available Lowest cost solution 24 V DC 1 11 SB V CEAG Apparatebau Hundsbach GmbH & Co. KG 8

7 Safety Barrier Applications Analog output (4 20 ma I/P transducers) Grounded circuit 1 channel, group IIC Barrier endtoend resistance: 155 Ω (SB0715) Allows the connections of transducers with maximum 445 Ω input impedance Short circuit proof Smallest IS barrier available 4 20 ma 4 20 ma I P 1 11 SB 0715 or SB 0728 Grounded circuit 2 channels, group IIC Barrier endtoend resistance 145 Ω/channel Allows the connections of transducers with maximum 445 Ω input impedance Short circuit proof Smallest IS barrier available I P 1 11 Ch 1 Ch 2 I P SB V CEAG Apparatebau Hundsbach GmbH & Co. KG 84

8 Safety Barrier Applications Temperature sensors (thermocouples, Pt100) One safety barrier for all applications Thermocouple Low resistance solution (97 Ω maximum) Smallest thermocouple IS barrier Short circuit proof available Lowest cost solution for thermocouple available Suited for all thermocouples 1 SB0201 or SB wire RTD Lowest resistance solution (40 Ω maximum) Short circuit proof Lowest cost solution for RTD available Smallest RTD IS barrier available Suitable for all type of RTD ϑ 1 11 SB0201 or SB0761 wire RTD Lowest resistance solution (40 Ω maximum) Short circuit proof Lowest temperature coefficient Lowest cost solution for RTD available Smallest RTD IS barrier available Suitable for all type of RTD ϑ 1 11 SB0201 or SB SB0201 or SB0761 CEAG Apparatebau Hundsbach GmbH & Co. KG 85

9 Safety Barrier Applications Load cells 10 V DC supply sense Lowest resistance solution ( Ω) Lowest temperature coefficient Lowest cost solution for load cells Only two barriers required for complete system Sense Bridge Signal Signal SB 150 or SB 0767 SB 151 0V 12 V DC supply without sense Lowest resistance solution (maximal 65 Ω) Lowest temperature coefficient Lowest cost solution for load cells without sense wire Only two barriers required for complete system V Bridge Signal Signal SB 1250 or SB 0767 SB 151 CEAG Apparatebau Hundsbach GmbH & Co. KG 86

10 Dimensions Safety barriers 70.4 mm 9.7 mm 98.2 mm 68.2 mm 125 mm 1 (1x) (SB 9100) mm Glossary Barrier Socket for 1 barrier Socket for 10 barriers Faston terminals Backplane sockets Faston IS terminals Equipotential earth 125 mm Terminal connetions See operating instruction CEAG Apparatebau Hundsbach GmbH & Co. KG 87

11 Field Mounted Units Description Field mounted devices can be installed in the hazardous area. They are connected to PLC or DCS systems via intrinsically safe transmitter power supplies. Field mounted devices offer the advantage of amplifying the signal very early in the loop converting it to a standard 4 20 ma signal. From the safety point of view you simply match the maximum values for current, voltage and power as well as the cable parameters with those of the transmitter power supply. Configurable ranges Operation by HART protocol Mounted in zone 1 areas Fits thermowell heads Size B IP 66 field enclosures optional CEAG Apparatebau Hundsbach GmbH & Co. KG 88

12 Type MT102 2WireHeadMounted RTD Converter Product features Off line programmable (powered by PC) Fits thermowell heads size B Customized linearisation EMV to IEC 1000 and EN Calibration signal for commissioning EEx ia/ib approved Safe galvanic isolation between input, output and power supply Technical data: Input RTD 200 C C Input Ni C C Input slide wire Ω Input thermocouples E, B, J, K, L, N, R, S, T, U mv mv, smallest span >2 mv Cold junction compensation internal Output 4 20 ma, 20 4 ma selectable LFD programmable <.6 ma or <.5 ma Load RB = (UH 8 V) 20 ma Linearity 0.05 % refer to Input range RTD, Ni % Accuracy: Thermocouples 0.1 % or 0.2 C slide wire 0.1 % or 0.02 mv cold junction compensation < 0.5 K Temperature drift <0.1 %/10 K, mode dependant Response time approx. 0.5 s Power supply 8 0 V DC Weight approx. 50 g Ambiet temperature protection 40 C C Explosion: Category Approval Safety values (Output) (Input) EEx ia IIC T4, T5, T6 Ex9.C.4056 X Ui = 0 V, Ii = 100 ma, Pi < 900 mw UO = 0 V, IO = 25 ma, PO = 188 mw Ordering details Type Housing Parameters Protection Order No. MT102 Head mounted customized MT102E01AEA000P MT102 Field enclosure customized MT102P01AEA000P MT102 Head mounted standard * ia/ib MT102E01AEB000X MT102 Head mounted customized ia/ib MT102E01AEB000P MT102 Field enclosure standard * ia/ib MT102P01AEB000X MT102 Field enclosure customized ia/ib MT102P01AEB000P * RTD 4wire, selcted range C, Linear, LFD Potentiometer RTD THC µp 5 U 6 H IS barrier Block diagram configuration CEAG Apparatebau Hundsbach GmbH & Co. KG 89

13 Type MT115 HARTHeadMounted RTD Converter Product features Remote setting via HART Fits thermowell heads size B Customized linearization EMV to IEC 1000 and EN Calibration signal for commissioning EEx ia/ib approved Safe galvanic isolation between input, output and power supply Technical data: Input RTD 200 C C Input Ni C C Input slide wire Ω Input thermocouples E, B, J, K, L, N, R, S, T, U mv mv, smallest span >2 mv Cold junction internal (car bi disabled) compenstation to 0 C Output 4 20 ma, 20 4 ma selectable LFD programmable <.6 ma or <.5 ma Load RB = (UH 12 V) 20 ma Linearity 0.05 % refer to Input range RTD 0.1 K or 0.05 Ω Accuracy: Thermocouples 0.15 K 0.4 K range dependant Slide wire 0.1 % or 0.1 Ω Temperature drift < 0.1 %/10 K Response time approx. 60 ms Power supply 12 0 V DC Weight approx. 50 g Ambient temperature 25 C C Field enclosure IP x 110 x 56 mm Explosion protection Category EEx ia IIC T4, T5, T6 Approvals TÜV 99 ATEX 1466 Safety values (Output) Ui = 0 V, Ii = 100 ma, Pi < 800 mw (Input) UO = 8,6 V, IO = 175 ma, PO = 6 mw Ordering input Type Housing Parameters ExProtection Order No. MT115 Head mounted customized MT115APE01AEA000 MT115 Field enclosure customized MT115APP01AEA000 MT115 Head mounted standard * ia/ib MT115AXE01AEB200 MT115 Head mounted customized ia/ib MT115APE01AEB000 MT115 Field enclosure standard * ia/ib MT115AXP01AEB200 MT115 Field enclosure customized ia/ib MT115AXP01AEB000 * Factory setting: Pt100, 4 wire, C, linear, upscale drive, no filter, no trip, no cjc Potentiometer Pt100 THC 4 HHT 2 µp 5 6 U H 1 IS barrier Block diagram CEAG Apparatebau Hundsbach GmbH & Co. KG 90