RTD_TC_User`s_Manual MaS01E-1B
Contents
1. Extension and or compensating cable is identified with color according to the type of thermocouples and have nearly the same thermoelectromotive force characteristic as the thermocouple which is to be used in combination Tolerance of compensating cable is determined as Table 4 according to the temperature of connecting junction with thermocouple When wiring thermocouples be sure to use the proper compensating cables If the unproper cable such as the cable for a different type of thermocouple or copper lead wires are used it will generate the unproper EMF and will not be able to expect the accurate measurement Be sure to keep the temperature of compensating junction properly at connecting point with thermocouple and compensating cable REO ee JIISC1610 1981 IB JIS o Synb symbol Color Color T t f Type of TC compensatin emperature o ol Classi Class2 Classi Class2 d Tolerance compensating iun junction CC Pros saa L Lee o range ac a 0 200 oe EE eE o 150 c 5 20 150 K Green D gatie 5 20 100 JX G J Black Yellow 140 25 200 C P 20 150 C TX G 2 0 TX H T Brown Brown 25 100 C TaS 1 0 TX HS x Hayashidenko has the extension cables corresponding to JIS C 1610 1995 former JIS as standard stock for the time being The goods corresponding to new JIS C 1610 1995 are made to order Color of porality plus the same color with overall minus White for Class 1 132. 06 6885 4801 FAX06 6885 4825 Shizuoka Sales Office 16 3 Ejiridai Machi Shimizu Ku Shizuoka TELO543 64 9460 FAX0543 67 4046 Issued in June 2005 MaSO1E 1B 17 18
3. 4 WIRING 4 1 Wiring of resistance thermometer sensors The wiring system of resistance thermometer sensors includes 2 wire conducting 3 wire conducting and 4 wire conducting system as shown at Figure 3 1 The terminal A of the RTD should be connected to the terminal A of the measur ing device The terminal B of the RTD should be connected to the terminal B of the measur ing device The terminal b of the RTD should be connected to the terminal B b or C of the measuring device The name of the terminal may be different from the manufactures You may connect the terminal B of the RTD to the terminal b B or C of the measuring device to whichever Be sure to tighten the screw of the terminals and use care for short by dust dirt or foreign materials A A A A E E B B 2 wire system 3 wire system 4 wire system Not expect accrate measurment Most general for industrial use Suitable to accurate measurment due to adding resistance of leads by measuring potential difference using constant current Figure 3 1 Wiring system 4 2 Wiring of Thermocouples Thermocouples should be connected to the terminals of a measuring equipment by using special compensating cables Check the polarity of plus and minus and connect to the proper terminal and be sure to tighten the screw of the terminals And connect the cables carefully not to occur short curcuiting by dust dirt or foreign materials 4 3 Wiring with care When wiring the sensor to a measu
4. USER S MANUAL RESISTANCE THERMOMETER SENSORS amp THERMOCOUPLES HAYASHIDENKO CO LID f Tokyo JAPAN Table of Contents BEFORE YOU START 3 RESISTANCE THERMOMETER SENSORS 6 2 1 General construction of Resistance Thermometer Sensors 6 2 2 Operating Temperature Range of RTD sensors 7 2 3 Tolerance of RTD sensors 1 THERMOCOUPLES 8 3 1 General construction of Thermocouples 8 3 2 Limits of operating temperature 9 3 3 Tolerance of thermocouples on temperature 11 3 4 Extension and or Compensating cables 12 WIRERING 13 4 1 Wiring of RTD sensors 13 4 2 Wiring of thermocouples 13 4 3 Wiring with care 13 HOW TO HANDLE AND INSTALL SENSORS 14 5 1 Handling 14 5 2 Installation 14 HOW TO MEASURE TEMPERATURE CORECTLY 14 WARRANTY 15 7 1 Term of warranty 15 7 2 Range of warranty 15 7 3 Range of service 15 1 BEFORE YOU START Before you start to use temperature sensors please read carefully this user s manual and understand how to use temperature sensors correctly If sensors are handled and or treated with misuse alteration or abuse it may cause the serious injuries or damages to personnel and objects When you use temperature sensors be sure to follow the instruction stated in this manual The symbols and meanings used in this user s manual are as follows The below is the classification and explanation of a risk and its degrees occurred by a misuse alteration abuse or abnormal handling N W A R N N G W
5. ance 0 004 t Itl 0 015 t Qo 38 aja Ola y e Torerance Temperature range 375 Torerance 0 004 t Itl 0 015 t Formergrade aa o Y al Former grade Grade 0 4 5 Grade 1 5 O S D e o z 0 o y a Temperature range 375 CST lt 750 C 333 C lt T lt 750 C Torerance 0 004 t t Former grade Grade 0 4 ZA Temperature range 400C ET 375 C 40 C lt T lt 333 C Torerance 1 5 C 2 5 C Temperature range 40 CST lt 4 125 C 40 CST lt 133 C 67 CST lt 40 C Torerance 0 5 C 1 C 1 C O ko 9 o O o M e S N K E J T Temperature range 125 C ET 350 C 133C lt T lt 350C 200 C ST lt 67 C Torerance 0 004 t t 0 015 t Former grade Grade 0 4 1 Grade 1 5 o Y al o o 0 o M a Tolerance means allowable maximum of the remainder of the temperature converted lote 2 from thermoelectromotive force using the table of the reference thermoelectromotive force substracted by the temperature of measuring junction Note 3 Tolerance class 1 of type R and S thermocouples is applicable to standard thermocou Re 1 t means the value of measured temperature C regardless to the sign of or Re 2 The mark means informative reference The tolerances are classified in each type of thermocouples as shown in Table 3 12 3 4 Extension and or Compensating cables
6. arning identifies the conditions and actions that may pose hazards such as death or serious injury to the user when the sensor is misused abused or abnormally handled NC A U I 0 N Caution identifies the conditions and actions that may damage the sensor being used when it is misused abused or abnormally handled A WARNING O Installing a temperature sensor Extension lead wires for RTD resistance thermometer sensor and compensation cables for thermocouples should be connected to the terminals of the proper polarity on a measuring instrument Do not connect to an AC power supply to prevent overheating and or fire risks Do not handle a temperature sensor violently as it is a sensitive and fragile device A human body may be damaged by dropping etc Moreover it may cause breakage or short circuit inside the sensor and cause an inaccurate temperature measurement When install a temperature sensor at a hazardous place such as an explosion proof area precautions must be taken The terminal head of a explosion proof type temperature sensor is certified to use on condition that it should be placed at ambient temperatures between 20 degrees C to 40 degrees C Please carefully place the terminal head according to the regulations and or rules on explosion proof equipment after checking the ambient temperature of an installation place for safety The explosion proof packing type cable gland is available in the drawi
7. at which thermocouples can be used for a short time in case of unavoidable needs Regarding the normal operating temperature and the elevated operating temperature refer to Table 2 1 for thermocouples Table 2 2 for Metal Sheathed Thermocouples and Refer to Table 2 3 for the normal operating temperature of protecting tubes Moreover refer to Table 2 4 for the normal operating temperature of lining and Teflon tube 11 3 3 Tolerances of thermocouples on temperature Table 3 Classification by tolerance 2 Class 1 Class 2 Class 3 p 4 C Temperature range Lo 600 C T 1700 C Torerance 0 0025 t 0 005 t Formergrade Temperature range 0 C ET lt 600 C x Torerance 1 C 1 5 C Temperature range d 600 C T lt 1600 C pm Torerance 0 0025 t a HN es em C Temperature range Torerance R pm 9 o O o N a Former grade Temperature range 40 CST lt 375 C 40 CST lt 333 C 167 CST lt 40 C 1 5 C 2 5 C 2 5 C CST lt 1000 C 333 CST lt 1200 C 200 CST lt 167 C o o o al Temperature range 40 CST lt 375 C 40 CST lt 333 C 167 CST lt 40 C Torerance 1 5 C 2 5 C 2 5 C Temperature range 333 C ST lt 1200 C 200 C ST lt 167 C Torerance 0 004 t z t 0 015 t Former grade Temperature range 40 C lt T lt 333 C Torerance 1 5 C 2 5 C 2 5 C Temperature range 333 C ST lt 900 C 200 CST lt 167 C Torer
8. ce such as high frequency wave and microwave Be sure to keep properly the temperature of compensating junction with thermocouple see Table 2 2 If it will exceed the temperature shown measuring error would be greater than that 6 HOW TO MEASURE THE TEMPERATURE CORRECTLY The measuring junction of a thermocouple and the sensing resistor of a RTD should be needed to equal thermally to the measuring object So it is essential to have the insertion length sufficiently The insertion length may differ depending on the measuring condition but the following shows the insertion length at the magnify of the outer diameter of protecting tube as a guide Wall of furnese Insertion Length DE of furnese ww Still water Still air lt Erro of temperature temperation Differeuce of Protecl ing Tube 7 WARRANTY 7 1 Term of warranty 1 one year from the date of shipment at Hayashidenko 1 2 Range of warranty Warranty is limited to the fault of the products by the cause on Hayashidenko If itisclear that the fai lure is occurred by our fault wewill repair or exchange the products under our responsibility But we will except from the guarantee if it corresponds to the following items CD If it based on unsuitable condition environment handling use etc except having been checked by our catalog or the specifications written separately If the cause of failure is based on reasons other than manufacturers The
9. failure based on decomposition reconstruction repair inspection etc by other company without our permission The failure based on the use of the goods without original method to use 5 The failure based on the reason which was not able to be foreseen with the level of the science and technology at the shipment from our company In addition the failure based on causes which are not responsible for our company such as accident and disaster A guarantee means the guarantee only for the goods supplied The guarantee of the damage induced by failure of the goods will be taken as exemption from responsibility 1 3 Range of service Please notice that the following service like dispatch of a technician is not included the price of sensors 1 Training and or joint servey or inspection on site 2 Maintenance and adjustment and repair 3 4 Special test and inspection at the condition specified by customer Instruction and education for sensor technique Please consult Hayashidenko or our distributors separately when the above services are required The manual is subjected to change without notice 16 mm HAYASHIDENKO CO LTD 1809001 accredited and 18014001 accredited URL http www hayashi denko co jp Head office amp Tokyo Sales office 6 5 5 Honkomagome Bunkyo Ku Tokyo 113 0021 Japan TELO3 3945 3151 FAX03 3945 3130 Osaka Sales Office Hanahara No 8 Bld 6 8 8 Nisi Nakajima Yodogawa Ku Osaka 532 001 1 TEL
10. he operating temperature range of RTD sensors is different from the materials of protecting tube the inner structure or style of sensors Be sure to use the sensor within the temperature range specified at prearrangement 2 3 Tolerance of RTD sensors JIS C 1604 Refer to the formula at Table 1 1 Table 1 1 Class Tolerance Unit C A 0 15 0 002 t B 0 340 005 t Remarks 1 t means the values of measured temperature C regardless to the signs of or 2 JPt 100 was abolished in revision of JIS in 1997 due to the conformity to IEC standard 3 THERMOCOUPLES JIS C 1602 1605 3 1 General construction of Thermocouples Terminal Head Terminal Protecting Tube Insulator Figure 2 1 General construction of Thermocouples Sleeve Epoxi filling Magnesium oxide Compensation lead TC wires Measuring Junction Figure 2 2 General construction of MI Metal Sheathed thermocouples Sa Ungrounded Grounded Exposed Figure 2 3 Type of the measuring junction of MI thermocouple A thermocouple with a protecting tube is constructed with thermocouple bare wires ceramic insulators a terminal block and a terminal head as shown at Figure 2 1 Mineral insulated thermocouple is a thermocouple with such integrated construction that powdery inorganic insulator for example magnesium oxide MgO is filled up between metal sheath and thermocouple wires and
11. ng in system of the external lead on a explosion proof type sensor and it is necessary to connect an external lead wire by using the specified cable gland when using d2G4 explosion proof sensors made by Hayashi denko O Maintenance The installation place of a temperature sensor may be mostly exposed extreme conditions such as high temperature and or high pressure It is very dangerous to imnediately start a maintenance work in the process of an operation and just after the stop of an operation A maintenance and replacement work should be performed after checking the stop of an operation and the temperature and pressure become almost the same as that of the ambient conditions A sensor with a ceramic protecting tube may be broken by rapid heating or rapid cooling Preheating should be generally needed for the tube NCAUTION O Installing a sensor When install a sensor with a terminal head the temperature around the terminal head should be from room temperature to 60 degrees C and do not install it in a dusty dirty or wet environment If a part connecting inner leads of a sensor and outer extension lead wires we call it sleeve is exposed at high temperature high humidity and or chemical agents and other it may cause the degrade of filled epoxy resin inside and the failure of insulation resistance When a temperature sensor is fixed on machinery or equipment generally it is fixed by using a screw or fla
12. nge When a screw is used sealing tape or sealing agent should be wrapped on the screw for a JIS R tapered screw And a gasket should be attached for a JIS G parallel screw When it is installed by a flange tighten the bolts equally attaching a specified gasket If an air tightness is required carry out an air tightness leak test after installing the sensor Figure 1 A Mineral Insulated Metal sheathed RTD or TC sensor can be bent up to 5 times of the radius of the outer diameter of the metal sheath But it may cause damage if it is bent less than 5 times of the radius and returned repeatedly And a platinum sensing resistor is enclosed in the tip of a MI RTD sensor So never bend and give stress on the sensing part from the tip to 100mm long of the sensor Figure 2 Figure 1 Figure 2 Gasket MI Metal Sheath Seal tape 100mm Non bending Do not apply excessive stress on lead wires when use a temperature sensor with lead wires The connected part of the inner leads and the outer leads and or the outer leads themselves may be damaged or broken by outer stress such as excessive pulling or bending When attach a flexible tube to protect the outer leads it may be broken the engaged part of the flexible tube by excessive stress O Storage Check the electric continuity and the insulation resistance of a temperature sensor before storage Do not store a sensor in a dusty dirty or wet environment and sto
13. re it an indoor and dry place f a sensor is not used for a long period store it in a PVC plastic bag etc with a drying agent O Disposal of a used sensor Do not dispose of a sensor in a landfill Treat the temperature sensor as an industrial waste when no longer usable When it is difficult to throw away it as an industrial waste make a contact with a company who can handle the industrial waste and get permission from a prefectural governor O The quality of dust and water proof of a terminal box Sensors with terminal boxes that meet conditions as below are certified to dust and water proof Temperature sensors mounted terminal boxes type H2 H3 H4 Hb E6 or E7 and those that water proof is stated in number codes The state that the lid and conduit valve of a terminal box are accurately closed prevents the sensor from water and dust A water and dust proof test is to check under the JIS conditions whether or not water oil and or solid substances break into the inside of a terminal box sealed the conduit valve off However all of the products are not investigated in order to guarantee the quality of water and dust proof Therefore those products are CORRESPONDENT to the quality of water and dust proof and might not be able to be operated under any of your environment In case that the products are under tough conditions and unsuitable installations for water and dust proof those cannot keep the quali
14. ring instrument be sure to take care as the type of extension lead wires are perfectly different from RTD and thermocouples Choose the proper materials for overall and lead wires Connect the terminals of sensor to the input terminals of the measuring instrument Be sure to wire the cable of sensor apart from power line and power supply 14 5 HOW TO HANDLE AND INSTALL SENSORS 5 1 Handling When it seems that the sensor fail to operate properly do not decompose the sensor and contact us first Do not apply the sensor with vibration and shock in handling or transportation Especially handle the sensor with ceramic protecting tube with special care as it is easily broken The minimum bending radius of metal sheathed thermocouple shall be 5 times of the outer diameter of metal sheath The minimum bending length of metal sheathed RTD sensor shall be more than 100 mm from the tip of the sensor 5 2 Installation Check the polarity of the terminals and connect the sensor properly Keep the temperature of terminal head and sleeve at 60 degrees C or below Install the sensor to the place without water and moisture To prevent the influence of noise install the lead wire apart from the power line with high voltage and high current Do not install the compensating wire parallel toor together with the power line The wire with shield could expect the efficiency of preventing the electric noise Install the compensating wire apart from the noise sour
15. sealed as shown at Figure 2 2 The MI thermocouple can be made 3 three types of measuring junctions such as Ungrounded Grounded and Exposed junctions The advantages of MI thermocouple are 1 thinness 2 fast response and 3 bendabi ty bending radius shall be 5 times of the outer diameter of metal sheath as shown at Figure 2 3 3 2 Limits of operating temperature Table2 1 Unit C 650 750 800 900 800 1000 900 1050 SE 650 750 800 900 soo 900 800 900 SJ 450 650 150 150 150 ST 300 350 350 350 350 A Austenitic stainless steel B Corrosion and heat resistance super alloy Normal operating temperature limit Table 2 3 Unit C Normal Elevated Operating Operating Material temp limit Temp Limit lo oO o 60 80 750 850 Stainless Steel 950 1000 400 500 1 1090 1250 2 500 600 3 1000 1100 1100 1100 1300 1850 1500 1550 1400 1550 1400 1600 Table 2 4 Unit C Normal operating Material of Lining amp Tube Temperature Limit 20 FEP Teflon Tube The limits of normal operating temperature and elevated operating temperature are given in JIS C 1602 1995 Thermocouples and JIS C 1605 1995 Metal Sheathed Thermocouples 10 Normal operating temperature limit means the limit of temperature within which thermocouples can be continuously used in the air Elevated operating temperature limit means
16. ty of water and dust proof To keep the quality of water proof we recommend reinstalling an O ring in a year due to the deterioration of the ring 2 RESISTANCE THERMOMETER SENSORS JIS C 1604 2 1 General construction of Resistance Thermometer Sensors A resistance Thermometer Sensor often called as RID Resistance Temperature Detector has various forms and constructions according to applications The most typical construction is shown as Figure 1 1 and Figure 1 2 as below Terminal Head Fixed Mounting Flange Terminal Bloc Inner leads Protecting Tube y Single Fig 1 1 The general construction of a RTD with a terminal head which is attached to a stainless steel protecting tube flange and inserted a CRF sensing element A model CRF sensing resistor is an element used our CR Ceramic wire wound element with stainless steel fin to fit into the inner wall of a protecting tube Crimp type Terninal Lead wire MI Metal Sheath Ni Ni leads a Pt El t B WHITEorBLACK emen Magnesium oxi de Mg0 Figure 1 2 General construction of a Mineral Insulated RTD sensor A MI Mineral Insulated metal sheathed RTD sensor is so manufactured that it has the construction of flexibility and the integrated structure by filling insulating materials between the protecting tube and the internal connecting wires and sensing resistor 2 2 Operating Temperature Range of RTD sensors T
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