EX SSB 70 EX SSB 150 Protective cabinet system heating SSB

Transcription

1 ERICHR I C H O T T EX SSB 70 EX SSB 150 Protective cabinet system heating SSB Identification Planned certification from an order quantity of 25pc,. EC- type examination certificate Ambient temperature range Heat capacity max. Total Nominal current Nominal voltage II 2G Ex d e mb IIC T3 ZELM 09 ATEX xxx -20 C to +40 C 890 W (Type B) 700 W (Type A) 7 A max. Limiter T3 112 C Maintaining temperature Degree of protection 230 V, 48 to 62 Hz 5 C to +40 C IP 65 (Protective cabinet) Enclosure: Protective cabinet 70 L Protective cabinet 150 L Components: Radiator models EX HKA 33/ 100 AT Voltage controller Heat conductor connector Heating cable variants EX HKA 20/ 100 AT EX TRS /... AT EX GHL-ALAT 1600 Ω/km mineral isolated 1000 Ω/km mineral isolated Protective cabinet heating system The protective cabinet heating system consists of a series connection of voltage controller of the type TRS.../..AT and one combination of heating elements of the type HKA.../100 AT and a heat conductor loop. The heating is intended for the installation in protective cabinets of min. 70 L, especially 70 L and 150 L are available as standard. The system also includes the heated supply lines for the armatures in the protective cabinet. The viewing of the heat conductor loop comprehends both, its thermal behaviour inside as well as outside of the protective cabinet. The max. heat capacity in the protective cabinets amounts about 388 W. Outside approx. 18 W maximum are available per meter heating cable. The heating construction is suitable vor the use in zone 1 for gases up to group IIC and has a maximum surface temperature according to temperature class T3. Devices and protective systems for the intended use in potentially explosive areas according to guideline 94/9/EG Fa. Erich Ott Elektronische Geräte D Wiesbaden Rüdigerstrasse 15 Telephone Telefax mail erichott@gmx.de web

2 Protective cabinet system heating Ex SSB TABLE OF CONTENTS 1.0 Area of application System components Technical data Technical data protective cabinet Technical data of the installed part heating element EX HKA../100 AT in protective cabinet 150L SS Functional principle Wiring diagram Production number Type code Installation instructions Mounting possiblity standard Mounting possibility heating element horizontal Mounting possibility voltage controller at the bottom left Mounting possibility heating element vertical frontal Measuring point system Atmospheric layer measurement... 9 Warning The installation, configuration and commissioning may only be carried out by qualified and accordingly trained persons. The indications in this operating manual as well as the on-site installation and safety regulations must be observed. Proviso We reserve the right for technical changes. Aberrations, changes and printing errors do not justify any claims for damage. For safety components and systems the relevant standards and regulations must be observed as well as the according operating and installation instructions. Installation instructions The safety relevant data of the electrical circuits to be connected must accord with the technical data or rather the determinations of the EC-type examination certificate. For the installation / operation the EN EN ff, EN and EN and the respectively applicable installation regulations as well as the generally recognized rules of technique and this operating manual are relevant Only at compliance with this and the appropriate standards the EC-declaration of conformity is valid. Before the device is taken into operation, the installation must be checked without the device. An interchange of connections can lead to immediate destruction of the device. If any difficulties should occur during the installation, please do not manipulate the device improperly, because in this case the guarantee and the validity of the EC-type examination certificate void. Please contact us. In the case of service the device must be sent back to us. Maintenance The control mode of the Ex TRS / AT must be checked in reasonable intervals, minimum once a year. If the limiter of the HKA was triggered, the cause for the disturbance must be identified and rectified, before a reactivation can be made. The series current in the circuit should be measured and checked for the adherance to the max. values, as described in the technical data. Repair Repairs may only be carried out by the manufacturer. Changes that alter the designe of the device lead to immediate expiration of the certificate and any warranty claim voids. Read through this operating manual carefully, before you take the device into operation. Keep this manual at a place accessible for all users at any time. Please support us to improve this operating manual. We are grateful for your suggestions! Please contact us for technical queries! TELEPHONE: +49 (0) TELEFAX: +49 (0) erichott@gmx.de 1

3 E R I C H OTTT T 1.0 AREA OF APPLICATION Characteristics System cabinet for protective cabinet heating No internal Ex-viewing necessary anymore Flexible heating cable length adaption by means of variable voltage control One component less necessary than at comparable protective systems because of series connection The protective cabinet heating systems of the type Ex SSB70 and Ex SSB150 are used for the heating of installations and piping systens in zone 1 and higher. Typical is the heating of stubs of a temperature critical media current, which can be led to a display device or an analysing device into a protective cabinet to be heated. To cover the heating demand of both, fluid supply and instrument installation at inadmissible low ambient temperatures, the protective cabinet heating system is used. The ususal heating functions are frost protection or the holding of a min. admissible temperatore of up to +40 C. This consists of a series connection of voltage controller with controllable or fix holding temperature (TR / AT) heating element with controller and limiter function (HKA../100 AT) and a heat conductor loop, which is connected by use of a connection fitting of the type Ex GHL-ALAT. Because of the series connection it is secured, that a switch or limiter function affects on the complete heating circuit. For heating cable lengths of approx. 19m the combination of HKA 33/100 AT and mineral isolated heat conductors with a specific resistance of 1600 Ω/km (Type A) is recommended. For heat conductor lengths from 17 m to 29 m the combination of HKA 20/100 AT and mineral isolated heating cables with a specific resistance of 1000 Ω/km (Type B) is recommended. To provide the used components according to your specifications, the voltage controller is uses as variable voltage source. The max. admissible values to be adjusted must be chosen according to the used components. The necessary indications concerning this can be found in this operating manual. The typical application pertains to frost protection or the holding of a setpoint temperature of up to max. +40 C. The safety-related view also includes typical installations of the mineral isolated heating cable outside the protective cabinet. This runs in the outdoor area under a maximal 40 mm thick mineral isolation, paralles to cables made of rust resistant stainless steel or other metals. The function of the protective cabinet is to make a thermal separation of the ambient temperature and the objects to be heated possible. Similarly this helps to protect the installation from atmospheric influences. The protective cabinet is specified, due to its demands like thermal and electrostatic conductance, ambient temperature range and dimensions. 2.0 SYSTEM COMPONENTS 1. Protective cabinet 150 L 2. Protective cabinet 70 L 3. Electrical resistance heating cable (1600 Ω/km oder 1000 Ω/km) 4. Connection fitting type Ex GHL-ALAT 5. Heating element Ex HKA 33/100 AT or Ex HKA 20/100 AT 6. Voltage controller Ex TRS /...AT 3.0 TECHNICAL DATA Temperatures Ambient temperature range -20 C to +40 C Fluid temperature +60 C +40 C maximal typical Electrical data Capacity HKA../100 AT 370 W (Type A and B) Capacity heating cable 18,0 W/m (Type A and B) Total maximum capacity 700 W (Type A) 890 W (Type B) Series current 3,35 A 4,25 A Series fuse < 7 A Technical data Heating cable length at max. heating cable capacity 10 to 18,5 m 11 to 29,5 m 0,6 m Heating cable type Stub diameter min. 10 mm Temperature class Gas group Ignition protection category Stub wall thickness Insulation strength Thermal conductivity isolation T3 IIC Identification (Type A) (Type B) (Type A) (Type B) intern Mineral isolated coaxial transmission line approx. 1,2 mm 40 mm 0,04 W/mK 0344 II 2G Ex d e mb IIC T3 2

4 Protective cabinet system heating Ex SSB 3.1 TECHNICAL DATA PROTECTIVE CABINET Data 150 L cabinet Volume 150 L Height 750 mm Width 520 mm Depth 430 mm Thermal resistance 2,3 K/W Design windowless, antistatic Data 70 L cabinet Volume 70 L Height 640 mm Width 440 mm Depth 340 mm Thermal resistance 1,7 W/K Design windowless, antistatic 3.2 TECHNICAL DATA OF THE INSTALLED PART HEATING ELEMENT EX HKA../100AT IN PROTECTIVE CABINET 150 L Capacity of th Ex HKA /... AT in the protective cabinet 150L ss at an ambient temperature of -25 C. Interior temperature 10 C 20 C 30 C 40 C Necessary capacity 120 W 150 W 185 W 225 W Max. power drain of the Ex HKA (leakages) 380 W 330 W 280 W 240 W Reserve capacity determines the heat-up time 68% 54% 34% 6% 4.0 FUNCTIONAL PRINCIPLE 4.1 POSSIBLE WIRING DIAGRAM The protective cabinet heating of the type Ex SSB70/150 consists of a series connection of Ex TRS /... AT, Ex HKA../100AT and the connection fitting GH-ALAT or rather. GHL-ALAT, which is operated with a mineral isolated heating conductor loop. The connection is made exemplary according to the following diagram. For the connection of the respective connection cable in the potentially explosive atmosphere an accordingly suitable (if necessry certified) terminal box including cable gland must be used.. Main switch Conditioning cabinet TRSC GH HKA N Phase L1 33 Ω PE L1 N GH with heat conductor HKA 33/ 100 AT Intern = 3,4 A Heating loop Load bn bl bn bl Terminal box Voltage control with triac for Imax Heating loop R =... Ohm HKA 33/100 AT Intern = 3,4 A bn Controller gegn gegn Option controller without limiter TRSC T υ or sw sw Option controller with limiter TRSB 5.0 PRODUCTION NUMBER N bl bl Controller and limiter PE gegn bn Phase L1 xxxx / Year Month Serial number 3

5 E R I C H OTTT T 5.1 TYPE CODE 6.0 INSTALLATION INSTRUCTIONS Ex SSB The installation instructions of the individual components must be observed. You will find these in the respective operating manual. To fulfil the manifestations and technical data in each operating manual, attention should be paid the following notes: L protective cabinet L protective cabinet 1 2 Ex TRSC 210/ 5-70A AT With thermal fuse and temperature adjustment Ex TRSC 210/..A AT With therma fuse and fix temperature between 5-70 C. Please indicate fix temperature in C 3 - EX GHL-ALAT Standard version (see operating manual) 4 5 A B x m x m Ex HKA20/100 AT (for 1600 Ω/km) Ex HKA33/100 AT (for 1000 Ω/km) 1000 Ω/km Mi - cable heating cable length in m 1600 Ω/km Mi - cable heating cable length in m Please order the individual components analog to the desired construction and indicate the designated use of the component. The lengths of the respective connection cables are 1,2 m and they are made of silicone. If desired, also PTFE-connection cables are available, both variants alternatively available with protective hose. Example: 150L protective cabinet with TRSC fix adjusted voltage and variable temperature adjustment. Heat conductor sleeve GHL in standard version (also see operating manual GHL). Radiator HKA33/100AT Ω/km MI heating cable and 18 m heating cable length: Ex SSB _ B The mounting of the radiator and the rest of the installation must be carried out in accordance with the diagrams chapter The heat conductor sleeve must always be installed below the radiator, see diagram chapter Limit the maximum heating cable length in the cabinet to approx. 0,6m. If mounted horizontally the through heating in the cabinet is most regular. For this variant the GHL-ALAT is necessary. Do not lay heat conductor loops horizontally in loops, as then the thermal heats cumulate. Do not lay the heating cables on top of each other but always seperately. Lay heating cables in the protective cabinet without isolation. The indications on max. insulation strength and temperature of the medium in the pipelines to be heated must be complied with. The Ex GHL-ALAT must be self-assembled according to the enclosed operating manual. The connection fitting must always be installaed below the radiator with a lateral minimum distance of 3,5 cm, see picture 6.1. The circuit shall be secured with max. 7 A. The set temperature at the Ex TRS /... AT may not exceed +40 C. The series current must be adusted to o max. 3,35 A (Ex HKA33/100AT), or rather o max. 4,25 A (Ex HKA20/100AT) o For this purpose the voltage controller must be set on 100 V before putting into operation. The minimum value of 70 V should be used only cautiously, as the used potentiometer does not tolerate higher controlling torques (max. 0,5 Ncm). Rev up the voltage at the potentiometer so far until the max. permissible current is reached. The connection of the free conductor ends must be carried out in a suitable, also certified terminal box. Note: If the heating needs is lower than the according values, also other cable lengths can be installed. For the combination 2 at 40m heat conductor length still approx. 255 W heat capacity in the protective cabinet and 12,2 W/m at the heating cables are available. The indicated nominal current can, at longer heat conductor lengths than indicated, not be reached. In this case the max. ouput voltage must be adjusted at 4

6 09:43:03 09:51:38 10:00:12 10:08:46 10:17:21 10:25:55 10:34:29 10:43:04 10:51:38 11:00:12 11:08:47 11:17:21 11:25:56 11:34:30 11:43:04 11:51:39 12:00:13 12:08:48 12:17:22 12:25:57 12:34:31 12:43:05 12:51:40 13:00:14 13:08:48 13:17:23 13:25:57 13:34:31 13:43:06 13:51:40 14:00:14 14:08:49 14:17:23 14:25:57 14:34:32 14:43:06 14:51:40 15:00:15 15:08:49 15:17:23 15:25:58 15:34:32 15:43:06 15:51:41 16:00:15 16:08:49 16:17:24 16:25:58 16:34:32 Protective cabinet system heating Ex SSB the voltage controller. 6.1 MOUNTING POSSIBILITY STANDARD TEMPERATURE CURVE 100,00 Fühler Raum 90,00 Fühler E1 80,00 Fühler E2 70,00, Fühler E3 60,00 Fühler 5 50,00 Sensor 1 40,00 Sensor 2 30,00 Sensor 3 20,00 Sensor 4 10,00 Sensor 7, 0,00 Sensor 6 Analysis 75L cabinet TRSC- standard / HKA standard 5 TRSCAnalysis

7 ERICH O TT MOUNTING POSSIBLITY HEATING ELEMENT HORIZONTAL 6.2 TEMPERATURE CURVE 80 C Sensor R Sensor E1 70 C 60 C Sensor e2 Sensor e3 Sensor 1 50 C Sensor 2 40 C 30 C Sensor 3 Sensor 4 Sensor 5 20 C Sensor 6 10 C 0 C Sensor 7 16:31:27 16:22:52 16:14:18 16:05:44 15:57:09 15:48:35 15:40:01 15:31:26 15:22:52 15:14:17 15:05:43 14:57:09 14:48:34 14:40:00 14:31:26 14:22:51 14:14:17 14:05:42 13:57:08 13:48:34 13:39:59 13:31:25 13:22:51 13:14:16 13:05:42 12:57:07 12:48:33 12:39:59 12:31:24 12:22:50 12:14:16 12:05:41 11:57:07 11:48:32 11:39:58 11:31:24 11:22:49 11:14:15 11:05:41 10:57:06 10:48:32 10:39:57 10:31:23 10:22:49 10:14:14 10:05:40 09:57:06 09:48:31 09:39:57 Analysis 75L cabinet TRSC- standard / HKA horizontal installation 6 TRSCCurrent monitoring

8 6.3 08:50:41 08:57:20 09:03:58 09:10:37 09:17:15 09:23:54 09:30:32 09:37:11 09:43:49 09:50:27 09:57:06 10:03:44 10:10:23 10:17:01 10:23:40 10:30:18 10:36:57 10:43:35 10:50:14 10:56:53 11:03:31 11:10:09 11:16:48 11:23:26 11:30:05 11:36:43 11:43:22 11:50:00 11:56:39 12:03:17 12:09:56 12:16:34 12:23:13 12:29:51 12:36:30 12:43:08 12:49:47 12:56:25 13:03:04 13:09:42 13:16:20 13:22:59 13:29:37 13:36:16 13:42:55 13:49:33 13:56:11 14:02:50 14:09:28 14:16:07 14:22:45 Schutzkasten Systembeheizung Ex SSB MOUNTING POSSIBLITY VOLTAGE CONTROLLER AT THE BOTTOM LEFT TEMPERATURE CURVE 90 C Sensor room 80 C Sensor E1 70 C Sensor E2 60 C Sensor E3 50 C Sensor 1 40 C Sensor 2 Sensor 3 30 C Sensor 4 20 C Sensor 7 10 C Sensor 6 0 C Sensor 5 Analysis 75L cabinet TRS-C at the bottom left HKA standard 7 TRS-C monitoring

9 ERICH O TT 6.4 MOUNTING POSSIBLITY HEATING ELEMENT VERTICAL FRONTAL TEMPERATURE CURVE 90 C Sensor room Sensor E1 80 C Sensor E2 70 C Sensr e3 60 C Sensor 1 Sensor 2 50 C Sensor 3 40 C Sensor 4 30 C Sensor 5 20 C Sensor 6 Sensor 7 10 C Time[min] 7,2 14,6 22,0 29,3 36,7 44,1 51,4 58,8 66,2 73,5 80,9 88,3 95,6 103,0 110,4 117,7 125,1 132,5 139,8 147,2 154,6 161,9 169,3 176,7 184,0 191,4 198,8 206,1 213,5 220,9 228,2 235,6 243,0 250,3 257,7 265,1 272,4 279,8 287,2 294,5 301,9 309,3 316,6 324,0 331,4 338,7 346,1 353,5 360,8 368,2 375,6 382,9 390,3 0 C Analysis 75 L cabinet TRS-C standard / HKA vertical frontal installation 8 TRS-C Current monitoring

10 Protective cabinet system heating Ex SSB 7.0 MEASURING POINT SYSTEM ATMOSPHERIC LAYER MEASUREMENT 110 C C C 50 C 30 C 10 C -10 C 08:49:10 08:58:21 09:07:33 09:16:44 09:25:55 09:35:07 09:44:18 09:53:30 10:02:41 10:11:52 10:21:04 10:30:15 10:39:27 10:48:38 10:57:49 11:07:01 11:16:12 11:25:24 11:34:35 11:43:46 11:52:58 12:02:09 12:11:21 12:20:32 12:29:44 12:38:55 12:48:06 12:57:18 13:06:29 13:15:41 13:24:52 13:34:03 13:43:15 13:52:26 14:01:38 14:10:49 14:20:00 14:29:12 14:38:23 14:47:35 14:56:46 15:05:57 15:15:09 15:24:20 15:33: Sensor E1 Sensor E2 Sensor E3 Sensor 1 Sensor 2 Sensor 3 Sensor 4 Sensor 5 Sensor 6 Sensor 7 Room temperatur Power frequency -30 C C

11 10 E R I C H OTTT T

12 ERICHR I C H O T T Elektronische Geräte Inh. Barica Ott D Wiesbaden Rüdigerstrasse 15 Telephone +49 (0) Telefax +49 (0) mail erichott@gmx.de web BA_Ex_SSB-02_e_121115