MR MESSKO BeTech Operating Instructions Manual

3 Contents Please keep this manual for future reference! NOTE Data contained herein may differ in details from the equipment delivered. We reserve the right to make alterations without notice. Contents 1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 1.1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . .4 1.2 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . .4 1.3 Important notes on equipement operation . . . .4 2� Product�specification . . . . . . . . . . . . . . . . . . . . .4 2.1 BeTech Oil temperature indicator . . . . . . . . . . .4 2.2 BeTech Winding temperature indicator . . . . . . .4 2.3 TT version (option) . . . . . . . . . . . . . . . . . . . . . .5 2.4 Pt 100 version (option) . . . . . . . . . . . . . . . . . . .5 3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 3.1 Mounting the device . . . . . . . . . . . . . . . . . . . . .5 3.2 Capilary tube . . . . . . . . . . . . . . . . . . . . . . . . . . .5 3.3 Pockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 3.4 Kick protection . . . . . . . . . . . . . . . . . . . . . . . . . .5 4 Electrical connection . . . . . . . . . . . . . . . . . . . . .6 4.1 Connecting the microswitches . . . . . . . . . . . . .6 4.2 Analog output 4 - 20 mA current loop signal . . .6 4.3 Analog output 4 - 20 mA current loop signal and 0 - 5 V DC Voltage output . . . . . . . . . . . . .7 4.4 Analog output 0 - 5 V DC Voltage output . . . . .8 4.5 Analog output Pt 100 Ohm resistance signal . . 9 4.6 Switch settings . . . . . . . . . . . . . . . . . . . . . . . .10 4.7 Switch setting check . . . . . . . . . . . . . . . . . . . .10 5 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 5.1 Calibration check . . . . . . . . . . . . . . . . . . . . . . .10 6 Adjustment of the gradient . . . . . . . . . . . . . . . 11 6.1 Adjustment via heating current . . . . . . . . . . . . 11 6.2 Adjustment via built-in Matching Resistance MRB110-1 or MRB110-2 . . . . . . . . . . . . . . . . .12 7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . .13 8 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 8.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . .14 8.2 Analogue Output / 4 - 20 mA Current Loop Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 8.3 Analogue Output / 4 - 20 mA Current Loop Signal and 0 - 5 V DC Voltage output . . . . . . .16 8.4 Analogue Output / 0 - 5 V DC Voltage output .17 8.5 Analogue Output / Pt100 Ohm restistance signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 8.6 Wiring diagram / OTI 5 switches and WTI 5 switches and WTI 4 switches + MRB110 . . . .19 8.7 Connection terminals . . . . . . . . . . . . . . . . . . .20 8.8 Dimensions bulb no. 1 . . . . . . . . . . . . . . . . . . .21 8.9 Dimensions bulb no. 2 . . . . . . . . . . . . . . . . . . .21 8.10 Dimensions bulb no. 2F . . . . . . . . . . . . . . . . .21 8.11 Dimensions bulb no. 5 . . . . . . . . . . . . . . . . . . .21 8.12 Dimensions bulb no. 6 . . . . . . . . . . . . . . . . . . .22 8.13 Dimensions bulb no. 8 . . . . . . . . . . . . . . . . . . .22 8.14 Dimensions bulb no. 9 . . . . . . . . . . . . . . . . . . .23 8.15 Dimensions bulb no. 10 . . . . . . . . . . . . . . . . . .23 8.16 Dimensions bulb no. 27 . . . . . . . . . . . . . . . . . .23

4 1 Safety 1.1 Safety instructions All personnel involved in installation, commissioning, operation or maintenance of this equipment must: -� be�suitably�qualified�and - strictly observe these operating instructions. Improper operation or misuse can lead to - serious or fatal injury, - damage to the equipment and other property of the user -� a�reduction�in�the�efficiency�of�the�equipment. Safety instructions in this manual are presented in three different forms to emphasize important information. NOTE These notes give important information on a certain issue. 1.2 Intended use MESSKO® BeTech Oil and Winding temperature indicators are used to measure temperatures on power and distribution transformers, reactors or similar equip- ment. It is important to read and observe the limit values for operation indicated on the nameplate and in the operat- ing instructions prior to commissioning the device. 1.3 Important notes on equipment operation The user is obliged to comply with the national health and safety regulations. It is especially emphasized that works performed to live, e.g. dangerous-contact components, are permissible only while these components are either de-energized or protected against direct contact. Electrical installation is subject to the relevant national safety regulations. It is imperative to connect the ground wire in order to ensure trouble-free operation. WARNING This information indicates particular danger to life and health. Disregarding such a warning can lead to serious or fatal injury. CAUTION This information indicates particular danger to the equipment or other property of the user. Serious or fatal injury cannot be excluded. CAUTION Installation, electrical connection, commissioning, and maintenance of the device may only be carried out�by�qualified,�skilled�personnel�and�only�in�ac- cordance with these operating instructions. It is the responsibility of the user to make sure that the�device�is�used�for�the�specified�application�only. For safety reasons, any unauthorized and improp- erly�executed�work,�i.e.�installation,�modification,� alteration of the equipment, electrical connection, or commissioning of the equipment, are forbidden without�first�consulting�MESSKO! 1 Safety 2� Product�specification 2� Product�specification MESSKO® BeTech Oil and Winding temperature indicators are used to measure temperatures on power and distribution transformers, reactors or similar equip- ment. They always consist of a temperature sensor which is connected to the bellow type measuring device with a capillary tube. The measuring device is equipped with a pointer which turns to show the temperature on a scale. The measur- ing system consisting of sensor, capillary tube. The measuring�device�is�non�pressurized�and�filled�with�a� liquid. 2.1 BeTech Oil temperature indicator Pointer�thermometers�with�up�to�five�adjustable� micro switches for indicating the oil temperature. The indicated temperature is the oil temperature on the sen- sor of the device. The mechanical measuring system functions independently and requires no power input. 2.2 BeTech Winding temperature indicator Pointer�thermometers�with�up�to�five�adjustable�micro- switches for indicating the winding temperature (thermal image). The temperature rise between cooling liquid CAUTION Measuring instruments are sensitive. All parts should therefore be protected against falling and against knocks and vibrations. The capillary tube may not be shortened otherwise the measuring system will be damaged.

5 3 Installation (oil) and winding depends on the current in the winding. The secondary current of the transducer is proportional to the current in the winding. This transducer feeds a heating element inside the mechanical thermometer. That causes an increasing indication (gradient) of the measured oil temperature according to the transformer load. The pointer thermometer with heating element (chapter 6.1) has to be adjusted by setting the heating current. The type with heating element and built-in matching resistance MRB110-1 or MRB110-2 (chapter 6.2) has to be adjusted by setting the resistor. 2.3 TT version (option) These devices are additionally equipped with a sensor which converts the temperature value into an electrical signal (4 to 20 mA and/or 0 to 5 V DC). The sensor requires a power supply (24 V DC). 2.4 Pt100 version (option) In this device the simulated Pt100 Ohm resistance out- put is linear and proportional to the indicated tempera- ture on the instrument dial. 3 Installation 3.1 Mounting the device Anti-vibration mountings are included in the delivery and must be used to prevent mechanical wear of the instruments. 3.2 Capillary tube (Fig. 1/8) Never carry the thermometer by the capillary tube. Do not twist or bend it too sharply. The minimal bending radius is 25 mm. Clamp the capillary at approx. 400 mm intervals. Any excess capillary should be wound into a spiral with diameter of minimum 200 mm. 3.3 Pockets Oil�filled�pockets�should�not�be�over-filled�–�leave�15%� space for thermal expansion of the oil, once the bulb is inserted into the pocket. Make sure the gasket or seal is appropriate. 3.4 Kick protection For safety reasons the bulbs are provided with a built-in kick protection. CAUTION The operating and installation conditions demanded by this installation and operating instructions must be strictly complied with. Fig. 1 Fig. 2 kick protection example bulb no. 5 MESSKO® BeTech min. Ø 200 mm Wicklungstemperatur Winding temperature Température de l’enroulement Temperatura del devanado Temperature do enrolamento Temperatura avvolgimento Sarğı Sıcaklığı Температура обмотки 绕组温度计 Lindningstemperatur 1 2 3 4 5 6 1 7 8 1 1 9

6 4 Electrical connection 4 Electrical connection 4.1 Connecting the microswitches To connect the microswitches open the housing via the four screws of the housingh cover (Fig. 1/2). Remove the outer sheaths of the connecting cables to a length of approx. 160 mm and then the insulation of the indi- vidual conductors to a length of approx. 6 mm. Install the cable glands provided loosely to the incoming cables and housing. Pay close attention to cable gland assembly and ensure�that�the�seal�is�properly�fitted�to�avoid�any�water� ingress. Connect the incoming wiring to the terminal strip (Appendix, chap. 8.7) in accordance with the con- nection diagram (Appendix, chapter 8.2 - 8.6). 4.2 Analog output 4 - 20 mA current loop signal (see also chapter 8.2 for installation examples) This analogue output is an optional feature to the MESSKO® BeTech Oil and Winding Temperature Indicators. The output is linear and proportional to the indicated temperature on the instrument dial, where 4 mA is provided at the lowest value on the dial and 20 mA at the highest value, for instance 4 mA at 0 °C and 20 mA at 150 °C (see graph). The output can be used for several purposes such as connection to a computer, to a SCADA system or for remote monitoring by Remote Analogue or Digital Indicators. Because of the high load allowed, the same output can be used for more than one purpose at the same time. Since the output is provided from the indication, the same temperature is displayed both locally and remotely - no differences because of settings etc as if separate transmitters are used. The electrical wiring is easily connected to the terminal board inside the OTI or WTI (see appendix, chapter 8.2). CAUTION The terminals 61, 62 and 63 must be short-circuited during insulation test. The test voltage must be rai- sed gradually. Remove the clamps on the terminal board�once�the�tests�are�finished. WARNING Electrical voltages, danger to life! All connecting wiring must be free of voltage before opening the device. CAUTION When closing the housing tighten the srews with a torque of max. 1 Nm. Fig. 3

7 A separate shielded cable is recommended for the wir- ing to the 4 - 20 mA analogue output. This includes the Supply Voltage and the mA output signal (= terminals 61, 62 and 63). No other signals should be wired through the same cable and make sure the shield is connected to ground on one side only. 4.3 Analog output 4 - 20 mA current loop signal and 0 - 5 V DC Voltage output (see also chapter 8.3 for installation examples) This analogue output is an optional feature to the MESSKO® BeTech Oil and Winding Temperature Indi- cators. There are two outputs provided, both are linear and proportional to the indicated temperature on the instrument dial, where 4 mA and 0 V DC is provided at the lowest value on the dial and 20 mA and 5 V DC at the highest value (see graph). The outputs can be used for several purposes such as connection to a computer, to a SCADA system or for remote monitoring by Remote Analogue or Digital Indi- cators. A common installation is to use the mA signal for remote monitoring and the V DC output for a SCADA or computer connection. Since the outputs are provided from the indication, the same temperature is displayed both locally and remotely - no differences because of settings etc as if separate transmitters are used. The electrical wiring is easily connected to the terminal board inside the OTI or WTI (see appendix, chapter 8.3). A separate shielded cable is recommended for the wiring to this analogue output. This includes the Supply Voltage and the mA and V DC output signals (= ter- minals 61, 62, 63 and 64). No other signals should be wired through the same cable and make sure the shield is connected to ground on one side only. If only the Voltage output is to be used, the mA output must remain short circuited. Please leave the clamp in place on terminals 61 and 62. CAUTION The terminals 61, 62, 63 and 64 must be short- circuited during insulation test. The test voltage must be raised gradually. Remove the clamps on the�terminal�board�once�the�tests�are�finished. Fig. 4

8 4.4 Analog output 0 - 5 V DC Voltage output (see also chapter 8.4 for installation examples) This analogue output is an optional feature to the MESSKO® BeTech Oil and Winding Temperature Indicators. The output is linear and proportional to the indicated temperature on the instrument dial, where 0 V DC is provided at the lowest value on the dial and 5 V DC at the highest value, for instance 0 V DC at 0 °C and 5 V DC at 150 °C (see graph/Fig. 5). The output can be used for several purposes such as connection to a computer, to a SCADA system or per- haps for remote monitoring. Commonly the V DC output is used for a SCADA or computer connection. Since the outputs are provided from the indication, the same temperature is displayed both locally and remotely - no differences because of settings etc as if separate transmitters are used. The electrical wiring is easily connected to the terminal board inside the OTI or WTI (see appendix, chapter 8.4). A separate shielded cable is recommended for the wiring this analogue output. This includes the Supply Voltage and the V DC output signal (= terminals 61, 63 and 64). No other signals should be wired through the same cable and make sure the shield is connected to ground on one side only. CAUTION The terminals 61, 63 and 64 must be short-circuited during insulation test. The test voltage must be rai- sed gradually. Remove the clamps on the terminal board�once�the�tests�are�finished.

9 4.5 Analog output Pt100 Ohm resistance signal (see also chapter 8.5 for installation examples) This analogue output is an optional feature to the MESSKO® BeTech Oil and Winding Temperature Indicators. The simulated Pt100 Ohm resistance output is linear and proportional to the indicated temperature on the instrument dial. For typical resistance values - please see graph and table. The output can be used for several purposes such as connection to a computer, to a SCADA system or for remote monitoring. This output is provided with a 3-wire connection as standard, to facilitate compensation for wire resistance etc. Often the output is connected to the Signal Transducer Pt-MU for transmission over longer distances. Since the output is provided from the indication, the same temperature is displayed both locally and remotely - no differences because of settings etc. as if separate transmitters are used. The electrical wiring is easily connected to the terminal board inside the OTI or WTI - (see appendix, chapter 8.5). A separate shielded cable is recommended for the wiring to this analogue output. This includes all the terminals 61, 62 and 63. No other signals should be wired through the same cable and make sure the shield is connected to ground on one side only. Temperature [° C] Resistance Value [Ohm] 0 100.00 25 109.73 50 119.40 100 138.50 150 157.31 CAUTION The terminals 61, 62 and 63 must be short-circuited during insulation test. The test voltage must be rai- sed gradually. Remove the clamps on the terminal board�once�the�tests�are�finished.

10 5 Calibration 4.6 Switch settings The switches are individually adjustable and can be set to any temperature on the individual scale, regardless of other switch settings. The setting is done in the fol- lowing steps: a. Loosen the set screw on the orange pointer b. Rotate the drum while holding the set screw in position until the orange pointer points at the desired temperature setting on the scale. c. Tighten the set screw in this position. d. Check the switch setting as per below. 4.7 Switch setting check Keep the instrument in vertical position and turn the shaft with the drums towards higher temperatures (check that the pointer for the indication moves this way) and check that contact is obtained at the desired value. If necessary please re-adjust the setting. 5 Calibration Every instrument is factory calibrated so no additional calibration is necessary. This applies for all functions, including Indication, Switches and Analogue Output if applicable. 5.1 Calibration check Put the bulb (completely) in boiling water and check the reading after 15 minutes. If the error is larger than the stated tolerance (like ±3 °C) please contact your local representative or the manufacturer. As an alternative to boiling water a well-stirred (oil) bath of min 5 l volume with control thermometer or the MESSKO® Calibration Bath can be used. CAUTION Do not turn the shaft of the drums in the other direc- tion, since calibration may change.

11 6 Adjustment of the gradient 6 Adjustment of the gradient for Winding Temperature Indicator WTI 6.1 Adjustment via heating current A) Gradient The gradient is the temperature rise above oil tempe- rature for the Winding Temperature Indicator, WTI. The WTI is showing a Thermal Image of the transformer winding temperature. B) Calculation You can use the graphs or the table to get the gradient - or calculate the temperature rise as: G = K x Ih 2 where G = the gradient (°C) Ih = the heating current (A) K = a constant which is depending on the bulb type. C) Technical data Max heating current, Ih = 2.3 A continously Max heating current, Ih = 10 A for 5 seconds Thermal time constant: 9 minutes The gradients are shown for oil temperature 60°C D)�Verification To verify the gradient (temperature rise), please: - Keep the sensing bulb at a constant temperature during the test, preferrably in an oil or water bath - Feed a stable current (AC or DC) to the WTI heating element, corresponding to the required temperature rise - Keep the instrument cover mounted on the instrument - Wait 45 minutes before checking the temperature indication -�The�difference�between�the�final�temperature�and�the� temperature of the bath is the gradient 0 10 20 30 40 50 60 0,55 0,50 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 1,30 1,35 1,40 1,45 1,50 Gradient °C (or K) Nominal Heating Current Ih in A (Ampere) Min tol. Max tol. Fig. 7 *) Constant K Measuring ranges Bulb types A: 0 to 150 °C C: -20 to +130 °C E: 0 to 160 °C G: -40 to 160 °C 1, 2, 2F, 5, 8, 22, 27 22 23.5 29 6 24.5 26 32.5 9, 10 24 25.5 32 *) only valid for bulb types 1, 2, 2F, 5, 8, 22, 27 and measuring ranges A (0 to 150 °C) and C (-20 to +130 °C)

12 6.2 Adjustment via built-in Matching Resistance MRB110-1 or MRB110-2 A) Determine the required gradient in °C (or K) (from the heat-run tests). B)��Check�the�current�(in�Amps)�from�the�CT�at�100%�� load. C) Follow the line for the CT current to where the gradient on the x-axis cuts the line. D) Check the resistance value (in Ohms) on the y-axis for this point. This is the total resistance value over terminals�5�–�5�(meaning�the�resistance�of�the�hea- ting element in parallel with the matching resistance) (refer to chapter 8.6, Figure 14). E)��Connect�an�Ohm-meter�to�terminals�5�–�5�and�adjust� the Matching Resistance MRB110-1 or MRB110-2 until the determined resistance value is reached. Secure the lock-nut to this value. F) With this setting you should reach the required gradient�for�the�100%�CT�current�you�have�chosen. G) To verify the setting, please feed a stable current (AC�or�DC)�equivalent�to�the�100%�CT�current�to� the�terminals�5�–�5,�keep�the�instrument�cover�on� the instrument and wait 45 minutes before verifying the reading and the achieved temperature gradient. If adjustments of the gradient are necessary please adjust: a. towards a higher resistance value to get a higher gradient b. towards a lower resistance value to get a lower gradient H) For more details please also refer to chapter 6.1. Fig. 8 Temperature gradient graph for bulb types 1, 2, 2F, 5, 8, 22, 27 and measuring ranges 0...150 °C and -20...130 °C

13 7 Technical data Dimensions Refer to chap. 8.1 Materials Housing: Die casted aluminium, polyester powder coated, RAL 7033 Viewing glass: Laminated safety glass (standard); UV stabilized polycarbonate (optional) Capillary�tube:� Square�flange�4�holes;�� G3/4“; G1“; 7/8“-14UNF; other thread joints on request Cable glands: Up to 3 x M20 x 1.5 and 1 x M16 for analogue output Specifications Measuring ranges: 0...150 °C or -20...130 °C or 0...160 °C or -40...160 °C; other ranges on request Indication accuracy: ± 3 °C (30-150 °C) (optional: ± 2 °C or 1.5 °C) Place of installation: Indoors and outdoors, tropical and arctic climate Ambient temperature: -40 ... +70 °C (optional: polar execution down to -60 °C) Insulation voltage: 2.5 kV 50 Hz 1 min Protection class: IP 55 in accordance with IEC 60 529; (optional: IP 65) Analog output: 4-20 mA; 4-20 mA and 5 V DC; 5 V DC; Pt100 Weight: Approx. 4 kg Microswitches Number: 2, 3, 4 or 5 Switch rating: Standard SPDT 250 V AC / 15 A; (optional: MBO SPDT 250 V AC/10 A or 250 V DC / 5 A, DPDT or gold plated SPDT) Switch hysteresis: 12 °C ± 2 °C; others on request 7 Technical data

14 8 Appendix 8.1 Dimensions 190 7.48" 100 3.94" 56 2.20" 100 3.92" 282 11.10" 194 7.65" 121 4.74" M6x16 80 3.15" 100 3.94" 18,8 .74" Ø 79,5 3.13" Wicklungstemperatur Winding temperature Température de l’enroulement Temperatura del devanado Temperature do enrolamento Temperatura avvolgimento Sarğı Sıcaklığı Температура обмотки 绕组温度计 Lindningstemperatur MESSKO® BeTech Fig. 9

15 8.2 Analogue Output / 4 - 20 mA Current Loop Signal (optional) Fig. 10 MESSKO® BeTech 61 62 RIA130-1 D1272AT + – SNT36 + – AC / DC 4-20 mA AC, D1272AT only 63 24 V DC -V mA +V MESSKO® BeTech 61 62 RIA130-1 D1272AT + – SNT36 + – AC / DC 4-20 mA AC, D1272AT only 63 24 V DC -V mA +V MESSKO® BeTech 61 62 RIA130-1 D1272AT + – SNT36 + – AC / DC 4-20 mA AC, D1272AT only 63 24 V DC -V mA +V SCADA or computer + – Installation Example A: Installation Example B: (SNT36 next to OTI/WTI and remote indicator further away) Installation Example C: (several loads in series) Abbreviations: SNT36 = Power Supply Unit RIA = Remote Indicator Analogue D1272AT = Remote Indicator Digital For more details on these products please refer to separate operating instructions.

16 8.3 Analogue Output / 4 - 20 mA Current Loop Signal and 0 - 5 V DC Voltage output (optional) Fig. 11 Installation Example A: Installation Example B: (SNT36 next to OTI/WTI and remote indicator and SCADA/computer further away) MESSKO® BeTech 61 62 64 SCADA or computer + – RIA130-1 D1272AT + – SNT36 + – AC / DC 4-20 mA AC, D1272AT only 63 24 V DC -V mA +V V out V DC out MESSKO® BeTech 61 62 64 SCADA or computer + – RIA130-1 D1272AT + – SNT36 + – AC / DC 4-20 mA AC, D1272AT only 63 24 V DC -V mA +V V out V DC out Abbreviations: SNT36 = Power Supply Unit RIA = Remote Indicator Analogue D1272AT = Remote Indicator Digital For more details on these products please refer to separate operating instructions.

17 8.4 Analogue Output / 0 - 5 V DC Voltage output (optional) Fig. 12 MESSKO® BeTech –V 61 +V 63 V out 64 V DC out SCADA or computer + – SNT36 + – AC / DC 24 V DC MESSKO® BeTech –V 61 +V 63 V out 64 V DC out SCADA or computer + – SNT36 + – AC / DC 24 V DC Abbreviations: SNT36 = Power Supply Unit For more details on this product please refer to separate operating instructions. Installation Example A: Installation Example B: (SNT36 next to OTI/WTI and SCADA/computer further away)

18 8.5 Analogue Output / Pt100 Ohm restistance signal (optional) Doc no. TS 14 Date. 2013-01-25 Rev. Page: 2 (2) 11 12 14 21 22 24 31 32 34 41 42 44 61 62 63 64 C NC NO C NC NO C NC NO C NC NO Pt 100 5 5 11 12 14 21 22 24 31 32 34 41 42 44 61 62 63 64 C NC NO C NC NO C NC NO C NC NO Heating element Match. res. MRB Pt 100 Installation Example: Wiring Diagram Example: OTI with 4 switches + Pt100 Wiring Diagram Example: WTI with 4 switches and MRB110 + Pt100 RIA130-1 or D1272AT Pt-MU 61 62 63 Pt 100 Pt 100 4-20 mA AC/DC AC, D1272AT only + - MESSKO® BeTech/Bellow Technology TS 14 Analogue Output Pt 100 Ohm resistance signal Messko GmbH Gewerbegebiet An den Drei Hasen Messko-Platz 1 61440 Oberursel Germany Phone: +49 (0)6171 6398-0 Fax: +49 (0)6171 6398-98 Email: [email protected] Web: www.messko.com Fig. 13 Abbreviations: RIA = Remote Indicator Analogue D1272AT = Remote Indicator Digital Pt-MU = Signal Transducer MRB = Matching resistance MESSKO® BeTech 61 62 63 Pt 100 Pt-MU RIA130-1 or D1272AT AC / DC 4-20 mA AC, D1272AT only Pt 100 + – Installation Example:

19 8.6 Wiring diagram / OTI 5 switches and WTI 5 switches and WTI 4 switches + MRB110 (optional) Doc no. TS 40 Date. 2013-01-25 Rev. A Page: 1 (1) 11 12 14 21 22 24 31 32 34 41 42 44 C NC NO C NC NO C NC NO C NC NO OTI with 5 switches 5 5 11 12 14 21 22 24 31 32 34 41 42 44 C NC NO C NC NO C NC NO C NC NO Heating element Match. res. MRB WTI with 4 switches and MRB110 WTI with 5 switches 5 5 11 12 14 21 22 24 31 32 34 41 42 44 C NC NO C NC NO C NC NO C NC NO Heating element Messko GmbH Gewerbegebiet An den Drei Hasen Messko-Platz 1 61440 Oberursel Germany Phone: +49 (0)6171 6398-0 Fax: +49 (0)6171 6398-98 Email: [email protected] Web: www.messko.com MESSKO® BeTech/Bellow Technology Wiring diagram OTI 4 switch and WTI 4 switch and WTI 4 switch + MRB110 51 52 54 C NC NO 51 52 54 C NC NO Fig. 14

21 8.9 Dimensions bulb no. 2 8.10 Dimensions bulb no. 2F 118 148 35,5 35 Ø 14 G 3/4"-B 15 28 HEX 33 HEX 118 152 32,5 35 Ø 14 12 G 3/4" Ø 35 HEX 28 HEX 32 Fig. 17 Fig. 18 8.8 Dimensions bulb no. 1 □ 32 □ 50 Ø 9,5 118 152 32,5 35 Ø 14 HEX 28 Fig. 16

22 8.12 Dimensions bulb no. 6 HEX 24 136 165 16 19 7/8"-14 UNF Ø 12,2 8.13 Dimensions bulb no. 8 118 155 28 35 Ø 14 3 G 3/4" 15 28 HEX Fig. 20 Fig. 21 8.11 Dimensions bulb no. 5 118 160 24,5 35 Ø 14 10 G 1" Ø 40 HEX 28 HEX 36 Fig. 19

23 8.15 Dimensions bulb no. 10 140 32,5 35 152 Ø 12 HEX 28 HEX 32 G 3/4" Ø 35 8.14 Dimensions bulb no. 9 140 10 24,5 35 160 G 1" Ø 12 Ø 40 HEX 28 HEX 36 Fig. 22 8.16 Dimensions bulb no. 27 118 152 31,5 35 Ø 14 HEX 28 HEX 36 M27 x2 10 Ø 40 Fig. 24 Fig. 23

24 Messko GmbH Gewerbegebiet An den Drei Hasen Messko-Platz 1, 61440 Oberursel, Germany Phone: +49 6171 6398-0 Fax: +49 6171 6398-98 E-Mail: [email protected] www.reinhausen.com/messko Please note: The data in our publications may differ from the data of the devices delivered. We reserve the right to make changes without notice. BA 3527161/02 EN – MESSKO® BeTech – 79151202 – 01/19 ©Messko GmbH 2019