Ecom Instruments Ex-Pt 720 User's Manual
Contents
1. The carrying strap of the unit is to be attached to a loop on the users belt in such a way that when the unit hangs freely on the strap it always maintains a spacing of gt 50 cm from the boundary of the area which requires category 1 Only the manufacturers carrying strap may be used Fundamental safety and health requirements No additional ones 29 EE CITT ecom instruments GmbH Industriestr 2 D 97959 Assamstadt Tel 49 0 62 94 142 240 Fax 49 0 62 94 42 24 90 E Mail sales ecom ex com Internet www ecom ex com 550B0100 06 02 Subject to change without notification2. f MS DIR Y OSO E N Instruction Manual Ex Pt 720 Contents 1 Application 2 Safety references 3 Malfunctioning and inadmissible operation 4 Safety regulations 4 1 Special conditions for use in Zone O 5 Ex Data 6 Technical Details 7 Operating instructions 7 1 Commisioning 7 2 Switching on and measurement 7 2 1 Switching on 7 2 2 HOLD Function 7 2 3 Auto Off Function 7 2 4 Changing measuring range 7 2 5 Switching off 7 3 Battery change 7 4 Temperature probe 7 4 1 Standard probe 7 4 2 Special probe 7 4 3 Calibration instructions 8 Repair 9 Cleaning and maintenance 10 Guarantee amp liability 11 Declaration of EG Conformity 12 EG Type approval 16 17 17 17 18 18 19 19 20 21 21 21 21 21 21 22 22 22 22 23 24 24 24 25 26 27 1 Application The Ex Pt 720 is a precise robust and simple to operate tempera ture measuring device for temperature measurements in explo sion endangered areas excluding firedamp endangered under ground mining of Zones 2 and 1 according to IEC CENELEC 2 Safety references This operating manual contains information and safety recommen dations which must be complied with in order to guarantee safe functioning of the unit under the conditions described Please read these operating instructions very carefully before using the unit In case of doubt for example due to mistakes in the translation the German operating instructions are assumed to be val
3. a short display and function test will take place The measuring instrument is now ready for use 7 2 2 Hold Function The measured values can be retained in the display with the gt Hold lt pushbutton 7 2 3 Auto Off Function The Auto Off Function switches the unit off after 10 minutes ope rating time thus avoiding unintentional discharge of the battery 7 2 4 Changing measuring range The display can be switched between C and F While switching the unit on with the VO pushbutton lt press gt HOLD pushbutton lt and hold it After the self test is finished the currently selected max measu ring value will blink 21 Pressing the gt Hold pushbutton lt switches between C and F Should no pushbutton be pressed for 5 seconds after a changeo ver then the new measuring value will be accepted 7 2 5 Svvitching off Switch the unit of with the VO pushbutton lt The display is no longer active 7 3 Battery change Should the lt BAT gt symbol be displayed constantly then the bat tery vvill need to be changed vvithin the next 1 2 hours The unit switches itself automatically off should the battery voltage be too low Open the back of the unit by unscrewing it remove the exhausted battery and insert a new one observe polarity while changing the battery the cover may not be separated from the unit top shell only batteries of Type 6LR61 as per IEC may be used The use of alternative types of b
4. are exclusively valid and replace all other contract or legal warranty obligations ecom Instruments GmbH accepts no responsibility for special direct indirect accompanying or consequential damage as well as losses including the loss of data which may arise through the use or acquisition of the equipment independent of whether it was cau sed by violation of the warranty obligation lawful or unlawful action action in good faith or any other action If in certain countries the limitation of a legal guarantee as well as the exclusion or limitation of accompanying or consequential damage is not permissible it may be that the above mentioned limitations and exclusions are not valid for every purchaser Should any such clauses of these guarantee terms be declared null and void or not realisable by a competent court then the effectiveness or enforceability of any of the other conditions of these guarantee terms will be unaffected by the court decision 25 11 Declaration of EC Conformity We ecom Instruments GmbH Industriestra e 2 D 97959 Assamstadt declare under our sole responsibility that the product Ex Pt 720 to which this declaration relates is in accordance with the provi sion of the following directives 94 9 EC Equipment and protective systems in explosionendangered areas 89 336 EEC Electromagnetic compatibility and is in conformity with the following standards or other normati ve documents EN 50014 1997 Electrical e
5. gt 50mm x gt 4mm vv x g sensor dimensions gt 15 x gt 3mm w x g response time 99 10 Sec 7 4 3 Calibration instructions The plastic handle withstands a temperature of approx 200 C for a short time A long term maximum of 90 C is recommended Please take this into account when calibrating the system or indi vidual components 8 Repairs Should repairs be necessary then the conditions of ELEX V must be complied with We recommend that repairs be carried out in the manufacturer s factory as it is necessary for the unit to be checked for technical and safety reasons 9 Cleaning and maintenance The unit should only be cleaned with a moist cloth or sponge Detergents or abrasive materials should not be used We recommend that the function and accuracy of the unit be checked every two years by the manufacturer 24 10 Guarantee amp liability For this product ecom Instruments GmbH guarantees the function and material for a period of two years under normal operating and maintenance conditions The guarantee does not apply to products which are improperly used modified neglected damaged in accidents or exposed to abnormal operating conditions Claims under the guarantee can be made by retuming the defecti ve equipment to the factory We reserve the right to repair renew the settings or exchange the device The above mentioned guarantee conditions are the sole and only right of the purchaser to compensation
6. The sensors which are specially mentioned in the operating instructions may be used for the measure ment of temperatures in category 1 The permissible ambient temperature range is 0 C to 50 C Electrical data Power supply internal battery one block battery as per IEC 6LR61 or 6F22 U 9V Only batteries which have satisfied the type testing in accordance with section 10 9 of EN 50020 1994 are allowed to be used The manufacturers and their type numbers are listed in the operating instructions 16 Test documentation is listed in test report No YEX 137383 17 Special conditions The temperature measuring unit Type Ex Pt 720 may not be opened within the explosion endangered area The version with the type designation EX Pt 720L may only be used within explosion endangered areas when it is enclose in the leather case which is supplied with it In addition the following applies to the measurement of temperatures within category 1 The temperature measuring unit Type Ex Pt 720 itself may not be taken into areas which require category 1 operating equipment Only the sensors listed in the operating instruc tions as being suitable for category 1 may be used The carrying strap of the unit is to be attached to a loop on the users belt in such a way that when the unit hangs freely on the strap it always maintains a spacing of gt 50 cm from 18 the boundary of the area which requires category 1 Only the manufacturer s carrying strap
7. atteries is strictly forbidden batteries may only be changed outside the Ex area the taking of additional batteries into the Ex area is not allowed 7 4 Temperature probes 7 4 1 Standard probes Immersion insertion probe 0628 1232 measurement range 50 400 C accuracy class A Ex Zones 21 probe dimensions 110mm x 4mm w x sensor dimensions 30mm x 3 2mm w x 9 response time 99 12 Sec 22 Surface probe 0628 1932 measurement range 50 400 C accuracy Class B Ex Zones 2 1 probe dimensions 110mm x 4mm w x sensor dimensions 3 2mm 9 response time 99 40 Sec Stainless steel probe 0628 2232 measurement range 50 400 C accuracy class A Ex Zones 2 1 0 probe dimensions 125mm x 4mm w x g sensor dimensions 15 x 3mm w x response time 99 10 Sec 7 4 2 Special probes Immersion insertion probe 0600 9999 measurement range 50 400 C 0628 1232 accuracy class A Ex Zones 2 1 probe dimensions gt 50mm x gt 4mm w x 9 sensor dimensions gt 30mm x gt 3 2mm w x g response time 99 12 Sec Surface probe 0600 9999 measurement range 50 400 C 0628 1932 accuracy Class B Ex Zones 2 1 probe dimensions gt 50 mm x gt 4mm vv x sensor dimensions gt 9 mm response time 99 40 Sec 23 Stainless steel insertion probe 0600 9999 measurement range 50 400 C 0628 2232 accuracy class A Ex Zones 2 1 0 probe dimensions
8. id 3 Malfunctioning and inadmissible operation As soon as one suspects that the safety of the equipment is end angered it must be taken out of service and immediately removed from the Ex area Precautions must be taken to prevent its unin tentional reuse We recommend that the unit be returned to the manufacturer for checking For example the safety of the unit could be endangered when damage to the housing is visible the unit was subjected to improper strain the unit was incorrectly stored the unit was damaged in transit the lettering on the unit is unreadable malfunctioning occurs 17 Obviously incorrect measurements occur measurements with the unit are no longer possible the permissible limiting values were exceed 4 Safety regulations In order to exclude incorrect operation of the unit its use assumes that the user is aware of and complies with the usual safety regu lations the batteries may only be changed outside the Ex area it is not allowed to take additional batteries into the Ex area only type approved batteries may be used only sensors which have been approved by ecom may be used It must be ensured that the unit is not taken into Zone 0 measurements on electrically live parts are not allowed observe the measuring range of the temperature sensors Overheating will damage the sensors avoid use in aggressive acids or alkalis the unit may not be opened in Ex area
9. may be used Fundamental safety and health requirements No additional ones 1st Supplement to EC Type approval test certificate No TUV 01 ATEX 1757 ecom instruments GmbH Industriestrasse 2 D 97959 Assamstadt The company In the future the explosion protected temperature measuring instrument Type Ex Pt 7204 may be manufactured in accordance with the documentation listed in the test report The changes are concerned with the external design and the use of further sensors The permissible ambient temperature is dependent on the type as shown in the following table Permissible ambient temperature range 0 C to 50 C 10 C to 50 C Ex Pt 720 L Ex Pt 720 The electrical data are valid without change for this supplement Test documentation is listed in test report No 02 YEX 164755 Special conditions The temperature measuring unit Type Ex Pt 720 may not be opened within the explosion endangered area The version with the type designation EX Pt 720L may only be used within explosion endangered areas when it is enclose in the leather case which is supp lied with it In addition the following applies to the measurement of temperatures within explosion endangered areas which need category 1 equipment The temperature measuring unit Type Ex Pt 720 itself may not be taken into areas which require category 1 equipment Only the sensors listed in the operating instructions as being suitable for category 1 may be used
10. n endangered areas in line with Appendix II of the guidelines The test results are recorded in the confidential test report No 01 YEX 137383 9 The fundamental safety and health requirements are fulfilled on account of compatibility with EN 50014 1997 EN 50020 1994 10 Should the letter X appear at the end of the certification number attention is drawn to special conditions for the safe use of the equipment which can be found in the appendix 11 This EG type approval test certificate only refers to the conception and testing of certain equipment in line with Guideline 94 9 EG The additional requirements of this guideline which are valid for the manufacture and commissioning of this equipment are not covered by this certificate 12 The designation of the equipment must contain the following details E NN2 1 G EExiallC T4 TUV Hannover Sachsen Anhalt e V TUV CERT certification authority Am TUV 1 D 30519 Hannover Hannover 19 02 2002 The person in charge This EG type approval test certification may only be distributed in unchanged form Extracts or changes need the approval of the TUV Hannover Sachsen Anhalt e V 27 13 14 15 16 17 18 28 Appendix EC Type approval test certificate No T V 01 ATEX 1757 X Description of the equipment The explosion protected temperature measurement unit Type Ex Pt 720 may be used in explosion endangered areas which require category 2 or 3 respectively
11. quipment for explosion endangered areas EN 50020 1994 Electrical equipment for explosion endangered areas Intrinsic safety i EN 61326 1 1997 Electromagnetic compatibility Small business The equipment was tested for electromagnetic compatibility in the frequency range of 60 1000 mHz The specified tolerances could not be complied with in the frequency band 280 300 mHz ecom instruments GmbH Assamstadt 28 05 02 Rolf Nied Managing Dire p f 26 12 EG type approval TUV CERT 1 EC Type approval test certificate 2 Equipment and protective systems for use according to certain regulations in explosion endangered areas Guideline 94 9 EC 3 EG Type approval test certificate number Ex T V 01 ATEX 1757 X 4 Equipment Explosion protected temperature measuring unit Type Ex Pt 720 5 Manufacturer ecom instruments GmbH 6 Address D 97959 Assamstadt Industriestrasse 2 7 The type of design as well as the various permissible versions are specified in the appen dix to this type approval test certificate 8 The T V Hannover Sachsen Anhalt e V T V CERT certification authority hereby con firms as recognized authority no 0032 according to Article 9 of the Guidelines of the Council of the European Union dated March 23rd 1994 94 9 EG the fulfilment of the fundamental safety and health requirements for the conception and design of equipment and protective systems according to certain regulations in explosio
12. rta Alkaline Electric Povver No 8022 Duracell Alkaline Duracell Alkaline Ultra Duracell Professional Alkaline Battery Procell Everady Ralston Energy Systems SA Al Sa ses reje e Panasonic Alkaline Power Line Industrial Battery Daimon Alkaline 19 Operating life approx 100h Dimensions 190 x 57 x 42 mm Weight approx 200g with batteries Case material ABS slight discolouration due to additives IP protective rating IP 54 EC designation C o102 Display LCD digit height 14mm Measuring device Pt 100 Sensor 4 wire technique Measuring range 50 C to 400 C Accuracy 50 C to 199 9 C 0 2 C A digit 200 C to 400 C 0 2 from measured value 1 digit Resolution 50 C to 199 9 C 0 1 C 200 C to 400 C 1 C System accuracy 50 C to 99 9 C with immersion insertion sensor 0 6 C 1 digit 100 C to 400 C 0 5 from measured value 1 digit 7 Operating instructions ape Sensor connection HOLD button VO button Safety loop for use on Zone 0 reverse side safety screw 20 7 1 Commissioning carefully read operating instructions open back of unit with key insert battery correctly observe polarity insert battery safety cover close unit with safety screw 7 2 Switching on and measuring 7 2 1 Switching on Insert sensor into Measuring socket take note of plug coding Switch unit on with VO pushbutton lt After switching on
13. s 4 1 Special conditions for use in Zone O The measurement of temperatures with the Ex Pt 720 within Zone O is only permitted if the following conditions are complied with a Stainless steel sensor Type 0628 2232 is used the Ex Pt 720 itself may not be taken into Zone O It must be absolutely ensured that the unit does not find its way accidentally into Zone O In order to guarantee this the carrying strap of the unit must be attached additionally to the belt of the user or to a loop attached to his belt The length of the carrying strap must be so adjusted that when the unit hangs freely on the carrying strap the Ex Pt 720 maintains a spacing of 50cm to the boundary area of Zone O 18 Should the unit be used in the optionally available leather case the carrying strap of the unit must still comply with the conditi ons for attachment to the user s body 5 Ex Data EC test approval no T V 01 ATEX 1757 X Ex designation SN 2 1 G EExiallC T4 Approved for Zone 1 equipment group II gas group C explosions endangered gases vapours or fog temperature class T4 Only the sensors specified in the approval certificate may be used Sensor no 0628 2232 may be used in Zone O 6 Technical Details Ambient temperature Ta 10 50 C Storage temperature 20 70 C Batteries 9V Block 6LR61 as per IEC only type tested batteries Supplier Type Varta Alkaline No 4822 Varta Alkaline Universal No 4022 Va
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