User Manual JOFRA STS-102 A Sensor 030 - CERT-TRAK
Contents
1. must relate to the reference sensor and not to the Read value in the display To avoid discrepancies between Set value and Read and True values it is recommended to use the Set Follows True function as described in the user manual 105447 for the ATC calibrator If using this function calculate on a prolonged calibration time of approx 10 minutes per calibration point 8 4 Drilling instructions In order to obtain good measuring results it is important that the hole of the insert fits exactly into the dimensions of the sensor tube to ensure a good contact between the sensor and the insert It is especially important that the flange of the sensor fits tight to the surface of the insert Procedure 1 The part of the sensor that must be dropped down into the insert is measured The diameter d and the length I must be measured If the sensor has different diameters all of these must be measured as well as their corresponding lengths It is important to note that there where the change in the sensor s diameter occurs the transition is gradual in an arched form r1 and r2 2 The hole for the sensor is placed in the centre of the insert The diameter is stated as the measured diameter 0 2 mm The tolerance of the diameter must be 0 05 as indicated in fig 4 3 The length of the hole for the sensor is the measured length 0 5 mm 4 The hole for the reference sensor must be similar to t2. User Manual JOFRA STS 102 A Sensor 030 Copyright 2002 AMETEK DENMARK A S 28 01 2005 123829 02 List of contents 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 General information sise 4 Safety instructions ns 5 Introd uctiomM err 6 F rcttonality si Sn ann generee nent ia i ancor 7 4 1 Functional description 7 42 a or eee e ee aee Ee imme docere 7 4 3 Serlal n mber 3 2 eam nete ee 8 OP FATION voce uai io oen en oo E coi ea iia fa Poe La Te ca POR Ee wt eec rra cra 9 5 1 Operation 9 Maintenance eiie es coco co oo Scion ee inter ete 10 Technical specifications sensor 11 Calibration of temperature sensors for sanitary process connection ceci ci reet eesit ie cec cun E 13 8 1 ACCeSSOFIGS KI iiie edt ren Rer diess 13 8 2 Ihe reference SEN SOP 212227 eee T era na Per arte de i ren 14 8 3 The calibration sequence sss 16 8 4 Drilling instructions 17 123829 02 28 01 2005 3 1 0 General information This manual is only effective for the following product e JOFRA STS 102 A 30 mm The product is manufactured by AMETEK DENMARK A S GYDEVANG 32 34 DK 3450 ALLER D DENMARK TEL 45 48 16 80 00 FAX 45 48 16 80 80 4 28 01 2005 123829 02 2 0 Safety instructions e Read this manual carefully before using the sensor In order to avoid any personal injuries and or damage to the sensor all safety instructions a
3. alibration Therefore AMETEK Denmark A S recommends that this instruction be followed 123829 02 28 01 2005 13 A sanitary sensor is normally similar to one of the two examples shown below Fig 1 Due to the very short insertion length heat transfer through the sensor tube and flange is of great importance to the calibration result Therefore it is very important to achieve a good thermal contact to the sensor as well as to the flange Make sure that the sensor fits exactly into the supplied insertion tube It is very important to have good mechanical and thereby also thermal contact between the flange and the horizontal surface of the insertion tube In other words there must be no air between the flange and the insertion tube See also fig 2 8 2 The reference sensor Included in the package is a reference sensor especially developed for the purpose It is important that this reference sensor is treated careful so it does not suffer any harm When placing the reference sensor in the reference hole of the insert 4 2 mm make sure that there is no mechanical resistance 14 28 01 2005 123829 02 Caution Never use power or tools to place the sensor When the calibration is over the reference sensor should be removed from the insert and stored in an appropriate place for example in the carrying case included in the delivery Note We recommend recalibrating the reference sensor at least once a year more if the
4. he total length of the sensor I1 see fig 4 The diameter of the hole for the reference sensor is 4 2 mm as indicated in fig 4 123829 02 28 01 2005 17 5 The hole for the reference sensor is placed in the drilling There need to be 3 mm between the diameter of the reference sensor and the largest diameter of the sensor under test A A 1 1 p 42 9501 77 d A Fig 4 18 28 01 2005 123829 02
5. nch Media compatibility AISI 316 TI Response time 1997 16 sec measured in water Self heating effect 0 06 C mW 0 108 F mW Recommended meas current 1mA Connections Lemo plugs are standard Insulation resistance 23 C 73 F 3Gohm when exposed to 155 C 311 F for 200 hours Stability will depend on actual use of the sensor Certificate Upon request all sensors can be supplied with an accredited certificate according to the ITS 90 temperature scale The sensors are as standard calibrated in the range 45 C to 155 C 49 F to 311 F 123829 02 28 01 2005 11 Calibration is carried out at 45 C 49 F 20 C 4 F 0 C 32 F 50 C 122 F 100 C 202 F 155 C 311 F 12 28 01 2005 123829 02 8 0 Calibration of temperature sensors for 8 1 sanitary process connection Accessories kit Instructions for accessories kit for calibration of sanitary sensors The accessories kit Part No 123859 contains the following parts 1 pcs carrying case for safe storing of accessories 5 pcs undrilled insertion tubes 1 pcs reference sensor with cable Temperature range 50 to 155 C 1 pcs accredited certificate 1 pcs user manual 1 pcs protection tube This kit can only be used with the ATC 156 A or B version When calibrating sanitary sensors or sensors with short insertion lengths in general various conditions have to be considered to obtain an optimum and correct c
6. nd warnings must be observed Warning e Do not use in hazardous area Handle carefully Never exceed temperature range Caution 123829 02 When measuring temperature in fluids e g at re calibration the enclosed protection tube must be used The sensor must always be protected against any mechanical damage The sensor must never be exposed to mechanical shock effects Avoid thermal shock Any bending of the sensor may cause permanent damage Never use power or tools to place the sensor 28 01 2005 5 3 0 Introduction The JOFRA STS 102 A 030 sensor is designed for fast and traceable calibration and temperature measuring with AMETEK DTI and ATC systems and is ready for use The JOFRA STS 102 A 030 sensor is through its functional design adapted for calibration of short sensors in dry block calibrators Please read this manual carefully before use to obtain maximum value of your calibration system Warning e Do not use in hazardous area e Handle carefully e Never exceed temperature range 6 28 01 2005 123829 02 4 0 Functionality 4 1 Functional description The sensor can be used for measuring temperature in the range 50 C to 155 C 58 F to 311 F The sensor is designed for measuring temperature in a dry block calibrator Caution When measuring temperature in fluids e g at re calibration the enclosed protection tube must be used Sensors may be supplied with certificates fo
7. r a limited temperature range 4 2 Connections The sensor is delivered with a connecting cable and with the following options Model with lemo connection 1 metre cable 123829 02 28 01 2005 7 4 3 Serial number The serial number is placed on the connector as shown on the photo below M 8 28 01 2005 123829 02 5 0 Operation 5 1 Operation area All the sensors are intended for use in areas which meet the following Ambient temperature range O C to 50 C 32 F to 122 F Humidity 096 to 90 Protection class IP 50 Warning e Do not use in hazardous areas 123829 02 28 01 2005 6 0 Maintenance The sensor does not require specific maintenance before or after use The user may carry out the following procedure himself Cleaning sensor Use alcohol or water and a soft cloth Caution 10 The sensor must always be protected against any mechanical damage The sensor must never be exposed to mechanical shock effects Avoid thermal shock Any bending of the sensor may cause permanent damage 28 01 2005 123829 02 7 0 Technical specifications sensor Sensor type 4 wire Pt100 400 0 00385 1 C Sensor length 30 mm 1 8 inch Temperature range 50 C to 155 C 58 F to 311 F Hysteresis 0 C 32 F 0 01 C 0 018 F Stability 0 C 32 F typ 0 025 C 0 045 F Repeatability 0 002 C 0 0036 F Diameter OD4mm Immersion depth Min 30 mm 1 8 i
8. re is any doubt about its measuring capability The reference sensor may be calibrated as an independent unit or as a system together with the calibrator Sensor under test Reference sensor Reference level for reference sensor as well as for sensor under test Fig 2 123829 02 28 01 2005 15 8 3 The calibration sequence Place the special insert in the calibrator 2 Place the reference sensor in the reference hole of the special insert Make sure that the reference sensor reaches down to the bottom The cable is placed in the groove of the insert If the calibrator s reference input is used make sure that the correct calibration data for the reference sensor have been downloaded see user manual 105447 for ATC 156B If another reference instrument is used please follow the instructions for this 3 Place the sanitary sensor in the insert and make sure that the cable of the reference sensor is not jammed but completely free 4 When calibrating it is a good idea to try to create a calibration situation as close to reality as possible 5 If the sensor is normally insulated in the process it should also be insulated in a similar way during the calibration to secure the same thermal conditions See fig 3 Fig 3 16 28 01 2005 123829 02 6 Calibration and setup of the calibrator as usual and as described in the user manual Please note that all temperature points and the accuracy during the calibration
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