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ck4 instrument and corrdata™ ck software reference manual

1. 13 CKACORBROSOMPETERT SttUllient 22 2992 0922091999299 95220 13 CORRDATA P C Tor ORO 13 Chapter 5 System Configuration Procedures 17 Entering Probe Configuration Information on the P C 17 Setting the Clock on 22 Contfiburatiobor C S4 Probe SPA Le Dresser teen 23 Clearing INIemory om Ido ss once vani cede 26 Chapter 6 Normal Operating Procedures 27 Reading CORROSOMETER Probes 27 Reading CORROTENIP PI DSS ie Du pen E IR CER Non 29 Displaying Probe Data CK4 30 Replacing 9 ao bep OM SEC 31 Entering Probe Data onto the P C 32 Archiving and Retrieving Old Data Files 35 Contents Chapter 7 Corrosion Data Analysis Displaying CORROSOMETER and CORROTEMP Mea TOSS Jd te ere comen Qui E PONENS ce 40 Editing and Analyzing CORROSOMETER Probe Graphs 42 Displaying Temperature on CORROTEMP Probes 44 Printing from CORRDATA Software 45 Chapter 8 Maintenance CRT TNS ETI se cse cheesy puse ORUM S ane herd ondes 47 PC CORRD AMA SOMW
2. 97 0395 0001 Shts 1 amp 2 97 0395 0002 BOM 97 0395 0002 Shts 1 amp 2 SCD 52 0133 0015 Shts 1 to 4 A1719 Shts 1 to 10 SCD58 2043 0000 Shts 1 to 4 98 0140 0000 Shts 1 amp 2 98 0140 0000 Shts 1 amp 2 BOM 98 0140 0000 Shts 1 amp 2 BOM 89 0140 0000 Shts 1 amp 2 BOM 89 0140 0000 Shts 1 amp 2 Sheet 4 6 Issue E1 Date 9 10 92 11 9 92 9 10 92 9 24 92 9 10 92 9 24 02 9 10 92 9 24 92 9 10 92 9 10 92 11 9 92 11 9 92 11 11 92 11 11 92 Description General Assembly BOM Termiflex with Aux Board Cable Assy Main amp Aux Boards BOM Cable Assy Main Board BOM Connector Keyboard Display PCB Assy HT 1121E PCB Assy HT 1121E BOM BOM BOM Schedule Certificate of Conformity BAS No Ex 92C2417 dated 20 November 1992 Number 34 0140 0000 34 0140 0000 65 0140 0000 Shts 1 to 14 65 0140 0000 Shts 1 to 14 33 0140 0000 Shts1 amp 2 33 0140 0000 Shts1 amp 2 SCD 62 0002 0000 Shts 1 to 3 98 0139 0000 BOM 98 0139 0000 Shts 1 to 3 34 0139 0000 65 0139 0000 Shts 1 to 14 33 0139 0000 Shts 1 amp 2 SCD 54 0589 0001 Shts 1 amp 2 53 0010 0200 BOM 53 0010 0200 Shts 1 amp 2 70 0058 0002 Sheet 5 6 Issue D E B C D1 Date 9 10 92 11 9 92 8 14 92 11 9 92 11 9 92 11 11 92 9 10 92 9 10 92 9 10 92 9 10 92 8 26 92 9 10 92 9 10 92 9 10 92 9 10 92
3. British Approvals Service for Electrical Equipment in Flammable Atmospheres Certificate BAS No Ex 92C2417 dated 20 November 1992 8 The manufacturer of the electrical apparatus referred to in this certificate has the responsibility to ensure that the apparatus conforms to the specification laid down in the Schedule to this certificate and has satisfied routine verifications and tests specified therein 9 This apparatus may be marked with the Distinctive Community Mark specified in Annex II to the Commission Directive of 16 January 1984 Doc 84 47 EEC A facsimile of this mark is printed on sheet 1 of this certificate This certificate is granted subject to conditions applicable to the Approval Service it does not necessarily indicate that the apparatus may lawfully be used in particular industries circumstances Sheet 2 6 m Electrical Equipment Certification Service x Health and Safety Executive H SE Sy Harpur Hill Buxton Derbyshire SK17 9JN United Kingdom Health amp Safety IFICATION Tel 0298 26211 Fax 0298 79514 Telex 668113 RLSD Executive dede desde RS RS Oe e oC SE E oM SE S Schedule Certificate of Conformity BAS No Ex 92C2417 dated 20 November 1992 APPARATUS A DATA LOGGER MODEL HT 1121E RC is a portable battery operated unit designed to collect
4. Certificate of Conformity BAS No Ex 92C2417 3 dated 4 March 1994 VARIATION SIX To permit the following 1 An alternative Norwesco D type connector for external connections ii A new display module iii The removal of capacitor C66 and resistors R65 and R66 from RCS Board 2 iv Addition of an FET symbol to RCS Board 2 schematic v Mechanical changes to the keyboard vi An increase in the length of an internal cable vii Change of sleeving specification on an internal cable vii Modification to the certificate label layout DRAWINGS Number Issue Date Description 99 0597 0000 Sheets 1 and 2 D 1 15 94 General Assembly BOM 99 0597 0002 Sheets 1 and 2 D 1 14 94 BOM Termiflex with Aux Board BOM 99 0597 0005 Sheets 1 and 2 D 1 14 94 BOM Termiflex w o Aux Board Sheets 1 and 2 1 14 94 BOM Rohrback with Aux Board Sheets Land2 11494 Rohrback w o Aux Board 97 0395 0001 D 1 15 94 Cable Assy Main and Aux Boards BOM 97 0395 0001 Sheets 1 and 2 E Sheet 2 3 1 14 94 BOM Cable Assy Main and Aux Board Schedule Certificate of Conformity BAS No Ex 92C2417 1 dated 26 March 1993 VARIATION FOUR To permit removal of the RS 232 serial port the audio beeper most of the battery backed memory and certain components on the auxiliary board to form a DATA LOGGER MODEL HT 112E CK4 or when affixed with a Trade Agent label to form a CORRDATAMATE 4 DRAWINGS Number 99 0
5. 41 71 mpy From O2 Oct 92 to O6 Oct 92 Figure 7 3 Metal Loss Graph with Rate Display Chapter 7 Corrosion Data Analysis 43 To zoom in on the corrosion data graph press Esc to return to the display sub menu and select Ranges Choose either the X Select or Y Select as required If the Y Select is chosen the graph will reappear with two horizontal cursors lines at the top and bottom of the graph Use the 1 or 1 keys to move the cursor lines and the Space bar to toggle between the two cursors as shown in Figure 7 4 When you are satisfied with the selection press Esc If you also wish to zoom in on the X axis choose the X Select The graph will reappear with the X range zoomed in Use the or keys to move the cursor lines and the Space bar to toggle between cursors and to select the required range Press Esc twice and View to display the zoomed in graph CORROTEMP ID 23 Probe Tag 0023 Metal Loss mils 5 10 15 20 Time in Days Rate MPY day 21 14 Oct 92 Figure 7 4 Selecting Y range 44 4 Reference Manual CORROTEMP ID 23 Probe Tag AE 0023 Metal Loss mils 0 5 10 15 20 Time in Daus Rate MPY day 21 14 Oct 92 Figure 7 5 Selecting X Range Re entering Ranges on the display sub menu will cause the X and Y axes to return to the fully zoomed out ranges ready for the next selection The metal loss graph line will normally be thick for most or all of the graph 2 pros wide but may be thinner near the end of p
6. program for Mate I or Mate II to permit additional input from a CK3 or CK4 instrument this list will only display probes that have been configured for manual input This simplifies selection of manual entry probes and avoids confusion with fully automated data entries Use the and keys to select the probe for which data is to be input and press the Enter key This will bring up the probe data input screen Chapter 6 Normal Operating Procedures 33 Figure 6 2 CORROSOMETER Probe Data Input Screen Switch ON the CK4 and press DISP F2 and select the probe label corresponding to probe selected on the P C MEAS 105 802 TEMP 25 6 deg C RATE 5 2 MPY Feb 02 93 16 28 EXIT On the P C the input fields fora CORROSOMETER probe are Date Time Check reading and Measure reading On CORROTEMP probe an additional data entry box for temperature will also appear Use the and keys to select the required field and the Enter key to enter and leave each data entry box At initial entry the cursor 1s set to the overwrite mode as indicated by the thick cursor In the Date field enter the month day year from the CK4 screen in the numerical format indicated on the P C screen including the key between the month day and year numbers When complete press Enter again to leave that data entry box For the Time field enter the time as indicated on the CK4 screen This format is the 24 hour military format whe
7. 1990 7 Theapparatus marking shall include the code EEx ia IIC T4 File No EECS 0900 02 001 Sheet 1 5 EE EX Electrical Equipment Certification Service Health and Safety Executive 6 Harpur Hill Buxton Derbyshire SK17 9JN United Kingdom Tet 0298 26211 Fax 0298 79514 Telex 668113 RLSD ear ree Executive g mato dodo CCo lt 9 9 mico e Ce E CE E oe o British Approvals Service for Electrical Equipment in Flammable Atmospheres Certificate BAS No Ex 90C2388X dated 25 April 1991 8 The manufacturer of the electrical apparatus referred to in this certificate has the responsibility to ensure that the apparatus conforms to the specification laid down in the Schedule to this certificate and has satisfied routine verifications and tests specified therein 9 This apparatus may be marked with the Distinctive Community Mark specified in Annex II to the Council Directive of 16 January 1984 Doc 84 47 EEC A facsimile of this mark is printed on sheet 1 of this certificate Sheet 2 5 This certificate is granted subject to conditions applicable to the Approval Service it does not necessarily indicate that the apparatus may lawfully be used in particular industries or circumstances EE Me Electrica
8. These systems allow fully automated data collection and direct transfer to the P C without the need for any manual data transfer For further details contact Rohrback Cosasco Systems Inc The default directory is CORRDATA and is installed in the root directory of the C drive When the installation 1s complete remove the CORRDATA CK Software diskette and save as a backup To commence the program select the CORRDATA directory and then type CI 12 4 Reference Manual 13 Chapter 4 System Overview CORROSOMETER CK4 Instrument The 15 a portable instrument capable of reading either CORROSOMETER CORROTEMP probes CORROTEMP probes are the same as CORROSOMETER probes but have an additional temperature measurement incorporated This measurement is incorporated without any additional connectors or connectors pins Both the metal loss and temperature readings are recorded by the CK4 and the readings can be stored in up to twenty six memory locations for later retrieval and transfer to the graphical CORRDATA CK Software supplied with the instrument This reading storage capability avoids the need to manually write down the probe readings CORROTEMP probes may be recognized by the name on the probe body and the letter T after the probe model number CORRDATA CK Software The CORRDATA CK Software supplied with the CK4 provides the following features Menu style selection Probe configuration On line help screens Se
9. al 1 b b xe rd ve Cor ne Por ROO ed alat eod eie 48 Software R VISIONS STER E TE RENS 48 Chapter 9 Troubleshooting CP Tin EE EEE OENE E EE EEANN E E EEE 49 20 v M onem 49 IE Problems SUID RR IE Ve 49 Appendix A Theory of Operation of CORROSOMETER uu puer gos diana gentia ye eee Appendix B Special Conditions or Limitations for use of Intrinsically Safe Equipment to European Harmonized Standards 11 Contents Figures and Drawings Figure Page 1 1 CK 1 1 2 Display ON caes d eus een ee quA TAE ENTIER 2 3 1 Battery Replacement on 4 9 4 Typical CORROSOMETER Probe Data Entry Screen 14 4 2 Typical CORROSOMETER and CORROTEMP Probe Metal Loss 15 4 3 Typical CORROTEMP Probe Temperature Graph 15 5 1 Man Menu Soren p 0 11 121 017 1T 17 3 2 Configuration Mode Probe Listing Summary 18 3 9 Configuration Mode Input Selection 19 5 4 Configuration Mode CORROTEMP Probe Information Entry Screen 20 5 5 CORROSOMETER Probe Types and Spans 25 6 1 Manual Input Probe List ora iq
10. at the P C for transfer to the CORRDATA CK Software package To display the data switch ON the CK4 instrument and press DISP F2 MEAS 37 SELECT LABEL A Z EXIT Press the key A Z for the probe to be reviewed This will show a display similar to the following Chapter 6 Normal Operating Procedures 31 MEAS 105 802 TEMP 25 6 deg C RATE 5 2 MPY Feb 02 93 16 28 EXIT NOTE The corrosion rate on the third line of the display is computed on the metal loss from the previous reading ono The value will only be displayed if the readings are at least 14 days apart No negative rates will displayed if for some unusual reason the reading decreased from the previous one Rates will also not be computed for data points more than 365 days apart Replacing Probes Warnings of impending probe replacement is given both on the CK4 instrument at the time of reading and on the CORRDATA CK software probe summary list If the probe being replaced 1s of the same type the reading on the CK4 instrument 1s carried out as normal once the probe has been replaced On the P C the previous probe data should be archived as described later in this chapter and the probe don deleted from the Configure menu The probe should then be reconfigured as a New probe with the same ID This process clears the old readings from the current probe list and re initializes the new check reading This firs
11. best reviewed and analyzed in graphical form on the P C where the trend through many points 1s possible NOTE The highest resolution of historical corrosion data is obtained with a CORRDATA system using Remote Data Collectors which record probe readings at regular intervals from every 5 minutes to every 24 hours This provides enhanced detection of corrosion upsets Input of probe span 1s only necessary 1f an approximate corrosion rate calculation 1s required on the CK4 at the time of reading This corrosion rate 15 then based on the current and last probe reading only If this calculation is not required on this section of the configuration may be omitted 24 Reference Manual First switch ON the CK4 ROHRBACK COSASCO SYSTEMS READ DISP SPAN TIME Press SPAN F3 SET SPAN MODE SELECT LABEL A Z E XIT Press the key A Z corresponding to the probe label to be configured Normally the probes on the system will have been labelled with letters A up to as high as Z Using the same identification on the CK4 for the probes will keep identification simpler and avoid confusion The following screen will be displayed SET SPAN gt 10 lt TENS ONES Press the TENS F1 key to increase the tens value and press the ONES F2 key to increase the units value of the probe span Hold down the key to scroll up through the values To reverse the direction of scrolling press the ALPHA NUMERIC ke
12. change the stored check reading even though it the reading on the data entry screen can be changed If this initial reading is incorrect delete the probe in the Configure mode and re enter the data Archiving and Retrieving Old Data Files The CORRDATA software provides for saving of files one at a time for archiving purposes and for retrieving files for viewing one ata time Any files saved are automatically given the extension SAV to avoid overwriting the DAT files if the CORRDATA directory is used For archiving sub directories should be set up for the appropriate time periods such as CD MAR93 of the data Each file can store up to 1131 sets of probe data points To save the current data to a sub directory first create the sub directory in DOS at the required location before entering the CORRDATA program Start the CORRDATA program and select Save and press Enter to display the following screen Figure 6 3 CORRDATA P C Software File Saving The DAT files are the data files in the current directory Press Tab key to switch from the cursor in the pathname box to a highlight bar in the file list below Use the 1 or keys to make the required selection and press the Tab key This will display the selected file into the Save to box with the cursor and a SAV file extension and leave a gray highlight bar at the selected probe in the file box above Modify the pathname as necessary for the destination sub directory s
13. measuring thickness changes of 0 002 mils In practice however we recommend that a change in indicated metal loss of l0 divisions be required before the data are used to calculate corrosion rate Indications of an upward or downward trend can be obtained with as little as a 4 division change but care must be exercised in interpreting such small changes because other factors e g temperature changes can also be responsible The actual time required to produce meaningful corrosion rate information with common probe spans at different corrosion rates 15 shown in Figure 2 and summarized in Table 1 10 000 Ht ETAIENT NN NE ANS LUI CANCHA cont KO KE _ PRIN CTI SO SEND HE N LS 7 S Nr TNS Corrosion Rate mils per year 0 1 100 1000 Response Time in Hours Based on 1 Probe Life or 10 Divisions FIGURE 2 Appendix A 53 Corrosion Probe Span mils mon Probe Spam mis O O inp 73 days 12 months 24months 30 montns isdays 29days 37days isdays 36days TABLE 1 Elapsed Time Corrosion Rate Early Trend Meaningful End of Useful with 10 mil Indication Rate Data Probe Life Span Probe 4 Div 10 Div 1000 Div 1 6 hours 4 0 hours 17 days 220 mpy 5 6 mm y 4 0 hours 10 0 hours 1 4 months 88 mpy 2 2 mm y 9 6 hours 1 day 3 3 months 37 mpy 0 94 mm y 18 0 hours 1 8 days
14. micrometres display units are selected The mils range 1s the only figure listed on the probe for reasons of space Alarm This 1s provided for informational purposes only Since the corrosion Rate data 1s historical active current alarms in the normal sense are not applicable Once all the necessary information has been completed on this screen and 15 correct press F2 to save the information This will then return to the configuration mode input selection Figure 5 3 Repeat the procedure with the next probe entry until all the necessary entries have been completed When the final entry has been saved use the Esc key as necessary to move back up the menu tree To edit any ofthe entries select Configure from the main menu to display the existing probe list summary Use the arrow keys to move the highlight bar to the required probe Select Edit from the menu bar The information entry screen will appear which may then be edited as required and saved with the F2 key If you wish to exit without making any changes use the Esc key 22 Reference Manual WARNING Editing is primarily for use at initial configuration Changing probe type span after data has been collected may distort the data To delete an entry select Configure from the main menu to display the probe list Select the required entry with the highlight bar and select Delete from the menu bar Once all the configuration information has been loaded into the P C the p
15. 000 Shts 1 to 14 BOM 53 0010 0000 Shts 1 amp 2 Sheet 2 3 Issue C gt n mo Date 3 18 93 3 9 93 3 9 93 3 9 93 3 9 93 3 18 93 3 18 93 3 18 93 3 18 93 3 9 93 3 8 93 3 9 93 3 9 93 3 8 93 3 9 93 3 8 93 3 8 93 3 9 93 Description General Assembly BOM Termiflex with Aux Board BOM Termiflex w o Aux Board BOM Rohrback with Aux Board BOM Rohrback w o Aux Board Cable Assy Main amp Aux Boards BOM Cable Assy Main Board BOM Cable Keyboard BOM PCB Assy HT 1121E BD1 BOM PCB Assy HT 1121E BD1 PCB Assy RCS BD2 BOM PCB Drill RCS BD2 PCB RCS BD2 Artwork BOM Inductor BASEEFA Schedule Certificate of Conformity BAS No Ex 92C2417 3 dated 4 March 1994 Number BOM 97 0395 0002 Sheets 1 and 2 97 0395 0001 BOM 97 0395 0001 Sheets and 2 SCD 52 0133 0015 Sheets 1 to 4 A1719 Sheets to 10 SCD 58 2045 0000 Sheets 1 to 4 98 0139 0000 98 0139 0000 Sheets 1 to 4 98 0139 0000 BOM 98 0139 0000 Sheets 1 to 4 33 0139 0000 Sheets and 2 99 0602 0000 Sheets and 2 BOM 99 0602 0000 Sheets 1 and 2 BOM 97 0397 0001 Sheets 1 and 2 98 0139 0001 BOM 98 0139 0001 Sheets 1 to 4 70 0058 0004 Sheet 3 3 ssue Al Date 1 14 94 1 15 94 1 14 94 1 17 94 1 14 94 1 14 94 1 17 94 1 14 94 1 17 94 1 14 93 1 14 94 1 15 94 1 14 94 1 14 94 1 14 9
16. 000 UNS C17200 UNS C68700 UNS C44300 UNS C44500 UNS C27000 UNS C26000 UNS 23000 UNS C14200 UNS C11000 Carbon Steels UNS G41300 UNS G10800 Alloy code 8009 UNS G10180 UNS G10220 UNS G10200 UNS G10150 UNS G10100 Alloy code 8007 Aluminimum Alloys UNS A92024 UNS A95154 UNS A95052 UNS A94043 UNS A95356 UNS A96061 UNS A93003 UNS A96063 UNS A91100 Sheet 3 5 Schedule Certificate of Conformity BAS No Ex 90C2388X dated 25 April 1991 DRAWINGS Number 660079 660080 660081 660082 Types T4 S8 W80 S20 T8 S40 T10 S8F T20 T50 in the following materials Nickel Alloys UNS N10276 UNS N08825 UNS N08020 UNS N06600 Type W40 in the following materials Nickel Alloys UNS N02211 UNS N02200 UNS N02270 Stainless steels UNS 550200 Alloy code 8047 Copper Alloys UNS C70610 UNS C64200 UNS 60600 UNS C51000 UNS C17200 UNS C68700 UNS C44300 UNS C44500 UNS C27000 UNS C26000 UNS C23000 UNS C14200 UNS 11000 Carbon Steels UNS G41300 UNS G10800 Alloy code 8009 UNS G10180 UNS G10220 UNS G10200 UNS G10150 UNS G10100 Alloy code 8007 Aluminimum Alloys UNS A92024 UNS A95154 UNS A95052 UNS A94043 UNS A95356 UNS A96061 UNS A93003 UNS 96063 UNS A91100 For all types of probe alternative carbon steels to match process steel work may be used provided the resistivity of the metal does not exceed 20 micro ohms per cm Issue Date Description A 15 01 91 Chart for Corrosomete
17. 11 9 92 Description PCB Drill HT 1120E PCB Drill HT 1120E PCB HT 1120E Artwork PCB HT 1120E Artwork HT 1120E Schematic HT 1120E Schematic Piezo Alarm PCB Assy RCS BD2 BOM PCB Drill RCS BD2 PCB RCS BD2 Artwork RCS BD2 Schematic Transformer Inductor BOM Label Termiflex Schedule Certificate of Conformity BAS No Ex 92C2417 dated 20 November 1992 VARIATION ONE To permit the removal of the auxiliary printed circuit board thus forming a DATA LOGGER MODEL HT 1121E DRAWING Number Issue Date Description BOM 99 0597 0005 B 11 9 92 BOM Termiflex Shts 1 amp 2 W O Aux Board VARIATION TWO To permit DATALOGGER MODELS HT 1121E RC and HT 1121E to be designated CORRDATAMATE II and CORRDATAMATE respectively when affixed with Trade Agent labels DRAWINGS Number Issue Date Description BOM Rohrback with D 11 9 92 Aux Board 34909944 89 00054 BOM Rohrback with Shts 1 amp 2 B 11 9 92 Aux Board 70 0058 0003 A 9 9 92 Label Rohrback Sheet 6 6 ede xd de dede de de de SE SES SE SA 9 SUE SEC SM i BASEEFA British Approvals Service for Electrical Equipment in Flammable Atmospheres CERTIFICATE OF CONFORMITY VARIATION THIS IS TO CERTIFY THAT CERTIFICATE BAS No Ex 92C2
18. 4 1 17 94 1 14 94 1 14 94 Description BOM Cable Assy Mam Board Cable Assy Main and Aux Board BOM Main and Aux Board Connector Keyboard Display PCB Assy RCS BD2 BOM PCB Assy RCS BD2 BOM RCS BD2 Schematic General Assembly CK4 BOM HT 1121E CK4 BOM Rohrback CK4 BOM Cable Assy CK4 PCB Assy RCS CK4 BD2 BOM Label e dedic sd EE E E OE OM ME ME DIE e BASEEFA British Approvals Service for Electrical Equipment in Flammable Atmospheres CERTIFICATE OF CONFORMITY VARIATION THIS IS TO CERTIFY THAT CERTIFICATE BAS No Ex 92C2417 Heldby TERMIFLEX CORPORATION of 316 Daniel Webster Highway Merrimack NH 03054 USA for the DATA LOGGER MODEL HT 1121E RC is hereby extended to apply to apparatus designed and constructed in accordance with the specification set out in the Schedule of the said Certificate but having the variation specified in the attached Schedule A copy of this Supplementary Certificate shall be attached to the original certificate File No EECS 2997 02 001 ERA Ref 3627 700 CERTIFICATE BAS No Ex 92C2417 3 IM CLEARE Sheet 1 3 DIRECTOR EECS ref C0082B 12A 4 March 1994 Electrical Equipment Certification Service Health and Safety Executive Harpur Hill Buxton Derbyshire 5 17 9JN United Kingdom Health amp Safety Tel 0298 26211 Fax 0298 79514 Telex 668113 RLSD Executive BASEEFA Schedule
19. 417 Heldby TERMIFLEX CORPORATION of 316 Daniel Webster Highway Merrimack NH 03054 USA for the DATA LOGGER MODEL HT 1121E RC is hereby extended to apply to apparatus designed and constructed in accordance with the specification set out in the Schedule of the said Certificate but having the variations specified in the attached Schedule A copy of this Supplementary Certificate shall be attached to the original certificate File No EECS 2997 02 001 ERA Ref 3627 649 CERTIFICATE BAS No Ex 92C2417 1 IM CLEARE 4183 12 B DIRECTOR EECS 26 March 1993 Electrical Equipment Certification Service Health and Safety Executive H SE Harpur Buxton Derbyshire SK17 9 United Kingdom Health amp Safety Tel 0298 2621 Fax 0298 79514 Telex 668113 RLSD Executive Sheet 1 3 le g Schedule Certificate of Conformity BAS No Ex 92C2417 1 dated 26 March 1993 VARIATION THREE To permit minor mechanical and circuit changes DRAWINGS Number 99 0597 0000 Shts 1 amp 2 BOM 99 0597 0002 Shts 1 amp 2 BOM 99 0597 0005 Shts 1 amp 2 BOM 99 0589 0002 Shts 1 amp 2 BOM 99 0589 0005 Shts 1 amp 2 97 0395 0001 BOM 97 0395 0001 Shts 1 amp 2 97 0395 0002 BOM 97 0395 0002 Shts 1 amp 2 SCD 97 0400 0000 Shts 1 to 3 A1719 Shts 1 to 10 BOM 98 0140 0000 Shts 1 amp 2 BOM 89 0140 0000 Shts1 amp 2 98 0139 0000 BOM 98 0139 0000 Shts 1 to 4 34 0139 0000 65 0139 0
20. 6 0 months 20 mpy 0 51 mm y 1 1 days 2 7 days 9 0 months 13 mpy EN RN EET 1 5 days 3 7 days 12 0 months 10 mpy ET 1 8 days 4 6 days 15 0 months 8 mpy ET 2 2 days 5 5 days 18 0 months 6 7 mpy LOC KEJ 2 9 days 7 3 days 24 0 months 5 mpy 0 13 mm y All data shown to two significant digits only TABLE 2 54 CK4 Reference Manual From Table 1 it would appear desirable to always choose probes with the lowest span available in order to get the greatest sensitivity However the more sensitive the probe the faster the entire probe span will corrode away and require a new probe to be installed Table 2 illustrates this relationship It is our experience that the objectives of most monitoring programs can be achieved cost efficiently by selecting CORROSOMETER probes which will reach the end of their useful life in 6 9 months at the expected corrosion rate Unlike a monthly coupon replacement program this electrical resistance probe will continuously produce data that verifies that the average corrosion rate over the previous 2 3 days is still at the originally expected design rate If the corrosion rate increases to twice the design rate meaningful data to permit the new rate to be calculated will be available in a day and a half Conversely if the actual corrosion rate is below design a longer period 1s required before meaningful data are available to calculate the new rate CORROSOMETER probe elements are availa
21. 602 0000 Shts 1 amp 2 BOM 99 0602 0000 Shts 1 amp 2 BOM 99 0601 0000 Shts 1 amp 2 97 0397 0001 97 0397 0001 Shts 1 amp 2 SCD 97 0397 0000 Shts1 amp 2 BOM 98 0140 001 Shts 1 amp 2 BOM 89 0140 0001 Shts 1 amp 2 98 0139 0001 98 0139 0001 Shts 1 to 4 33 0139 0000 Shts 1 amp 2 70 0058 0002 70 0058 0003 Sheet 3 3 Date 3 9 93 3 9 93 3 9 93 3 9 93 3 9 93 3 9 93 3 9 93 3 18 93 3 9 93 3 9 93 3 8 93 3 8 93 3 8 93 Description General Assembly CK4 BOM HT 1121E CK4 BOM Rohrback CK4 Cable Assembly CK4 BOM Cable Assy Probe Data Mate 2 BOM PCB Assy HT 1121E BD1 CK4 BOM PCB Assy HT 1121E BD1 CK4 PCB Assy RCS BD2 CK4 BOM RCS BD2 Schematic Label Termiflex Label Rohrback ed 9 dec dede de ee E E Es Ee oA eU AP AM ANC WC SW oW British Approvals Service for Electrical Equipment in Flammable Atmospheres Certificate of Conformity Variation THIS IS TO CERTIFY THAT CERTIFICATE BAS NO Ex 92 2417 Held by TERMIFLEX CORPORATION of 316 Daniel Webster Highway Merrimack NH 03054 USA forthe DATA LOGGER MODEL HT 1121E RC is hereby extended to apply to apparatus designed and constructed in accordance with the specification set out in the Schedule of the said Certificate b
22. CK4 BD2 PCB Assembly BOM PCB Assembly HT 1121E BD1 RS 232 BOM PCB Assembly HT 1121E BD1 RS 232 BOM PCB Assembly HT 1121E BD1 RS 232 BOM PCB Assembly HT 1121E BD1 RS 232 BOM PCB Assembly HT 1121E BD1 32K BOM PCB Assembly HT 1121E BD1 32K BOM PCB Assembly RCS CK 4 BD2 BOM PCB Assembly RCS BD2 BOM PCB Assembly RCS BD2 Sheet 2 2 9 9 de desde eee oe oe ee E E British Approvals Service for Electrical Equipment in Flammable Atmospheres 1 Certificate of Conformity 2 BAS No Ex 90C2388X 3 Thiscertificate is issued for the electrical apparatus A RANGE OF CORROSOMETER PROBES 4 manufactured and submitted for certification by ROHRBACK COSASCO SYSTEMS INC of Santa Fe Springs California 90670 USA 5 This electrical apparatus and any acceptable variation thereto is specified in the Schedule to this Certificate and the documents therein referred to 6 BASEEFA being an Approved Certification Body in accordance with Article 14 of the Council Directive of the European Communities of 18 December 1975 76 117 EEC certifies that the apparatus has been found to comply with harmonised European Standards 50 014 1977 Amendments 1 to 5 50 020 1977 Amendments 1 and 2 and has successfully met the examination and test requirements as recorded in confidential Report No 90 1 464 dated 3 October
23. CK4 unless extraneous entries have been made for example when initially experimenting with the system Alternatively if the equipment is to be transferred to new location then it 1s recommended to clear the memory to avoid confusion with any previously collected data To clear the memory proceed as follows Switch ON the ROHRBACK COSASCO SYSTEMS READ DISP SPAN TIME Press READ F1 and from the sub menu select WIRE Then press in sequence F2 and F3 The screen will display the following TEMP degC CLEAR ALL DATA YES NO select YES F1 to complete the deletion or NO F4 to exit without clearing the memory 27 Chapter 6 Normal Operating Procedures Once the probe configuration has been entered on the P C the ID designation letters should be noted and the probes marked accordingly on the probes This reduces the possibility of entering the probe reading in an incorrect memory location Reading CORROSOMETER Probes At the first CORROSOMETER probe to be read remove the connector cap from the probe plug in and switch ON the ROHRBACK COSASCO SYSTEMS READ DISP SPAN TIME Press READ F1 deg C SPEC TEMP Select the probe type with the F keys or with the keys A B C or D Wire element probes are type A Tube Strip T S loop and flush probes are type B or C Special or cylindrical element probes are type
24. CO SYSTEMS INC of Santa Fe Springs California 90670 USA for the RANGE OF CORROSOMETER PROBES is hereby extended to apply to apparatus designed and constructed in accordance with the specification set out in the Schedule of the said Certificate but having the variations specified in the attached Schedule File No EECS 0900 02 001 _ CERTIFICATE BAS NO Ex 90C2388X 1 I M CLEARE Sheet 1 2 DIRECTOR EECS CG 12 May 1992 C CUIR QN Electrical Equipment Certification Service iD zin T p ACHT ed Kingd HSE Harpur Hill Buxton ire United Kingdom rene Tel 0298 26211 Fax 0298 79514 Telex 668113 RISD G 9 E BASEEFA Schedule Certificate of Conformity BAS No Ex 90C2388X 1 dated 12 May 1992 VARIATION ONE DRAWINGS Number 660079 030822 ssue To permit the use of Types S4 S10 T4 S8 80 S20 T8 S40 T10 58 T20 and T50 manufactured from UNS K03005 pipe grade carbon steel Also to permit minor mechanical changes to the flush element Corrosometer that does not affect intrinsic safety Date Description 31 3 92 Chart for Corrosometer Elements 4 2 92 Element Flush Sheet 2 2 dy C ade d Cd D S de mde de de de de li dr dn d British Approvals Service for Electrical Equipment in Flammable Atmospheres Certificate of Conformity Variation THIS IS TO CERTIFY THAT CERTIFICATE BAS NO Ex 90C2388X Held by ROHRBACK COSASCO SYSTEMS INC of Santa F
25. D This will display the screen 28 CK4 Reference Manual MEAS te SELECT LABEL A Z EXIT Select and press the key A Z corresponding to the probe identification The CK4 will then take approximately 2 minutes and 45 seconds to read the probe The CK4 will indicate that a reading 1s in process and when complete will indicate readings such as the following MEAS 100 805 TEMP C deg EXIT NOTE Corrosion measure and check readings are displayed in units of divisions 0 to 1 000 divisions represents 0 to 100 of the useful probe life or probe span One division is 0 1 of the probe span These units are converted to engineering units automatically from the probe configuration information entered in the CORRDATA CK software program Chapter 6 Normal Operating Procedures 29 Various warning messages may occur if there 15 any problem with the probe reading Check Reading Bad The internal probe reference element is damaged Replace probe Replace Batteries Replace batteries 1n an electrically safe area NOTE A shorter reading time may be achieved by pressing the SPACE key before selecting the probe letter against which to store the probe reading This reading takes approximately 1 minute but will not be as accurate as the normal reading When the reading 15 complete press EXIT F4 to return to probe type selection screen or switch OFF the CK4 and proceed t
26. Ep EE EXP x Re des 32 6 2 CORROSOMETER Probe Data Input Screen 33 6 3 CORRDATA P C Software File Saving 35 6 4 CORRDATA P C Software File Retrieval 37 7 1 Probe Display SelecHOflS OR SEND PR EUREN ES 40 752 CORROSOMETER or CORROTEMP Probe Metal Loss Graph 4 7 3 Metal Loss Graph with Rate Display 42 7 4 Y RINSE eoo eo out ee ECL oun 43 ii Contents Figures and Drawings continued 7 5 oclectmnp X Range iusso KA RR OR RE REG ERE S edes 7 6 CORROTEMP Probe Temperature Graph Chapter 1 Introduction The Model CK4 CORROSOMETER instrument is designed to read CORROSOMETER and CORROTEMP probes and to simplify both probe and data presentation CORROTEMP probes incorporate temperature measurement into the standard CORROSOMETER probes without any additional connections CORROSOMETER CK 4 F G F fa 2 2 fs Fe Ms S T ROHRBACK COSASCO SYSTEMS SS pee Figure 1 1 CK4 CORROSOMETER Instrument The CK4 joins new generation of multi parameter corrosion monitors including the CORRDATA Mate II designed to read both metal loss and temperature This portable unit has a built in memory which stores readings for later retrieval so that operators do not have to carry a notebook and pencil for manual rec
27. RMITY 2 BAS No Ex 92C2417 3 This certificate is issued for the electrical apparatus DATA LOGGER MODEL HT 1121E RC 4 manufactured and submitted for certification by TERMIFLEX CORPORATION of 316 Daniel Webster Highway Merrimack NH 03054 USA 5 This electrical apparatus and any acceptable variation thereto is specified in the Schedule to this Certificate and the documents therein referred to 6 BASEEFA being an Approved Certification Body in accordance with Article 14 of the Council Directive ofthe European Communities of 18 December 1975 76 117 EEC certifies that the apparatus has been found to comply with harmonised European Standards EN 50 014 1977 Amendments 1 to 5 EN 50 020 1977 Amendments 1 and 2 andhas successfully met the examination and test requirements as recorded in confidential Report No ERA Ref 3627 575 dated November 1992 7 The apparatus marking shall include the code EEx ia IIC T4 Tamb 50 OX File No EECS 2997 02 001 Sheet 1 6 7 IMCLEARE f DIRECTOR EECS 3905 51 C 20 November 1992 C MEN Electrical Equipment Certification Service Health and Safety Executive HSE Harpur Hill Buxton Derbyshire SK17 9 United Kingdom Health amp Safety FICATION Tel 0298 26211 Fax 0298 79514 Telex 668113 RLSD Executive A 0 ed
28. Screen If the batteries are low or in need of replacement a warning screen will appear as follows REPLACE BATTERY NOW EXIT The battery 15 tested both at initial switch on and during probe measurement Battery back up for memory in the Mate II is provided by lithium batteries mounted internally within the unit These batteries should provide 7 10 years of back up capacity Replacement of these batteries requires the unit to be returned to Rohrback Cosasco Systems or an authorized dealer Chapter 3 Installation 11 CORRDATA CK Software The minimum requirements for the P C are as follows IBM P C or compatible EGA VGA graphics card 640 memory One floppy disk drive Hard disk MS DOS 3 3 or higher operating system MS DOS 4 01 or 5 0 preferred The CORRDATA CK Software package 15 included with the CK4 instrument Both 3 and 5 4 low density diskettes are supplied for maximum compatibility Toinstall the CORRDATA CK Software place the appropriate diskette in your floppy drive At the DOS prompt change the drive to this floppy and type install Follow the on screen Instructions NOTE install program also requests selection of COMI or COM 2 serial port Although the serial port is not used with manual input readings Fom the CK range of portable instruments this program is also capable of operating with the CORRDATA Remote Data Collectors and Mate I or II probe reading and data transfer units
29. Serial Number CK4 INSTRUMENT AND CORRDATA CK SOFTWARE REFERENCE MANUAL CORRDATA CK Software for CK4 CORROSOMETER instrument CORROSOMETER and CORROTEMP Probes ROHRBACK COSASCO SYSTEMS INC 11841 E Smith Avenue santa Fe Springs CA 90670 Tel 562 949 0123 800 635 6898 Fax 562 949 3065 P N 700901 Manual Rev E 08 28 2008 CORRDATA Corrosion Monitoring System 1992 Rohrback Cosasco Systems Inc rights reserved CORROSOMETER CORRATER ICMS are registered trademarks and CORRDATA CORROTEMP are trademarks of Rohrback Cosasco Systems Inc MS MS DOS are registered trademarks of Microsoft Corporation Laserjet paintjet are registered trademarks of Hewlett Packard Company IBM proprinter are registered trademarks of International Business Machines Corporation Lotus 1 2 3 1s a registered trademark of Lotus Development Corporation Contents Chapter 1 Introduction Chapter 2 Specifications CK4 CORROSOMETER Instrument 5 PC ues atouts 6 Chapter 3 Installation eus ccm dicii 7 l t msie dee es 7 CK4 CORROSOMETER Instrument 8 CORRDATA onsets wes 11 Chapter 4 System Overview
30. When a field entry 1s correct press Enter to complete The entry screens for each type of probe are similar except as noted below Probe Tag This is an optional field of 12 character maximum normally used for probe tag numbers such as AE 3041 Alternatively a brief description or location may be used ID No This 15 the letter or number to be allocated to this probe Each ID must be a unique A letter upper case A to Z is ideal as this can be used as the probe Chapter 5 System Configuration Procedures 21 memory location on the CK4 Numbers between and 50 may also be used This 1s the primary means of identifying each probe Location This 15 an informational field only which allows additional identification information up to 30 characters 1n addition to the tag number field Model This is a convenient field to store the probe identification information Number which can be useful for reordering purposes Example 3500 T10 K03005 18 0 0 0 Alloy This 15 the field for identification of the probe element alloy for CORROSOMETER and CORROTEMP probes Typically the UNS alloy code 15 used such as K03005 for pipe grade carbon steel Alternatively Carbon Steel 304 SS or Monel 400 or similar may be used if within the 8 character maximum Type For CORROSOMETER and CORROTEMP probes this 15 the probe type identified on the probe and detailed 1n Figure 5 5 Span This is identified on the probe and entered in mils even if millimetres or
31. Your CK4 instrument was carefully tested inspected and packaged prior to shipment Before unpacking the instruments please inspect the packaged materials ior shipping damage and retain damaged packaged materials to support any claim against your freight carrier should this become necessary Unpacking pay remove the instruments from their packages Included in the package you should ind CORROSOMETER Instrument Hand held CORROSOMETER CK4 instrument Instrument carrying case CK4 and CORRDATA CK Software Quickstart and Reference Manuals CORRDATA CK Software Diskettes CORROSOMETER CORROTEMP test probe 9969 Intrinsic Safety The probes and CK4 instrument have intrinsic safety ratings for use in electrical hazardous area environments Applicable certifications are identified on the System components according to units ordered The intrinsically safe system has been certified with a rating of EEx 1a IIC T4 at temperatures of up to 50 For temperatures from 50 to 70 the rating is EEx ia T3 This means that the system is safe for use in the severest of electrical hazardous areas where explosive gases are always present Zones 0 1 and 2 Divisions 1 and 2 all groups even with up to two fault conditions designated by 1a The gas classification 15 the most stringent including gases such as acetylene and hydrogen This part of the rating relates to the spark energy that 1s required to create an e
32. apter 8 Maintenance 4 Instrument The general requirements for maintenance on these units are battery change out general care and cleanliness of the unit and occasional inspection of the connectors for damage The operates from six AA battery cells The use of alkaline batteries 15 recommended which will give an average continuous operating time of 8 hours The batteries are checked under load conditions both when the unit 15 first switched on and during the probe measurement sequence If low batteries are detected the following screen will be displayed REPLACE BATTERY NOW EXIT The CK4 has a small lithium battery back up on an internal circuit board with an anticipated life of 7 10 years The unit must be returned to Rohrback Cosasco or its authorized representative for replacement of this battery 48 CK4 Reference Manual P C CORRDATA Software This requires no maintenance If any problems occur contact the factory for assistance Software Revisions The revision level of the P C software can be checked from the part number on the system diskettes and the date of the main CK EXE file The revision level of the CK4 may be checked as follows Switch ON the instrument Select DISP F2 from the start up screen and then press F1 MEAS CHK TEMP deg C SOFTWARE REVISION 6 8 EXIT The third line of the display shows the revision level The software is programmed in ROM Read Only Memory Any revision
33. ate file as described in Chapter 6 Archiving and Retrieving Old Data Files On the X axis the scale is identified in days The date of the last recorded reading 15 shown on the bottom of the graph for example on the above graph the last data was recorded on 8 Feb 1993 where 8 Feb 15 from day 34 0 to 35 0 The first day 15 from 0 0 to 1 0 The dates corresponding to the cursors may be displayed by pressing the Enter key at any time 42 Reference Manual Editing and Analyzing Metal Loss Graphs Select the required portion ofthe graph with the vertical cursors To adjust the cursor for this purpose use the or arrow keys to move the cursor and the Space bar to switch between the two cursors NOTE Initially the cursor lines are on the sides of the graph and may not be readily visible The selected cursor at entry to the screen is the left hand line Once the desired selection has been made press Enter The corrosion rate will be calculated and displayed at the bottom of the screen along with the start and finish dates corresponding to the cursors The corrosion rate is determined by the statistical method of Linear Regression 1 e the slope of the best straight line through the selected data WARNING No corrosion rate is displayed in this box until one or other of the cursor lines has been moved and the Enter key pressed CORROTEMP ID 23 Probe Tag 0023 Metal Loss mils o 5 10 15 20 Time in Days Rate
34. ble in a variety of styles A selection of the available styles is shown in Figure 3 Wire tube and strip loop styles all have a loop of metal exposed to the process The loop protrudes from the end of the probe body through either a hermetic glass seal or a Teflon ceramic Teflon epoxy or epoxy seal packing system Choice of materials is dependent upon stream composition process conditions and performance eo Cylindrical elements utilize specially made thin wall tubing as the measurement element Cylindrical probes are generally all metal 1 e there is no other material exposed to the process There are however also some cylindrical probes available which join the probe body at a hermetic glass seal A variety of flush mounted probes are also available so called because the measuring element is mounted parallel to the flow stream flush with the inside pipe wall Mine STRIP LOOP TUBE LOOP CYLINDRICAL ATMOSPHERIC FIGURE 3 CORROSOMETER monitoring systems can be o to all processes However some types of probes are better suited to requirements of particular applications than others Appendix A 55 Different styles of CORROSOMETER probes are affected to different degrees by pitting attack Figure 4 shows the results of pitting attack on a wire loop probe Although the remaining wire thickness shows that only 3096 or so of the probe span has been consumed the probe is obviously out of service Cylindrical elements on the
35. ckward keys and Enter or typing the highlighted letter CORRDATA CORROSIOH MONITORING SOFTHARE Neu ET Load PROBE LIST SUMMARY Location Install Replace Date W105 Overhead Condenser 01 04 93 Ui106 Overhead Condenser 01 04 95 Reflux Line to Tower 01 01 92 Sour Hater Outlet 4203 Top Pumparound 01 01 92 ENTER SELECT Figure 5 2 Configuration Mode Probe List Summary For this first time configuration or for new additions to the existing list select NEW to display the sub menu of input selections Chapter 5 System Configuration Procedures 19 CORRDATA CORROSIOH MONITORING SOFTHARE Mew EES Load RDC Co PROBE LIST SUMMARY RDC Ca Co Probe Location Install Replace Date CORROTEMP Ca Probe Vios Overhead Condenser 01 04 23 Hanual Co U106 Overhead Condenser 01 04 93 Manual Reflux Line to Tower 01 01 7223 Sour Hater Outlet 4203 01 01 92 Top End Punparound 01 01 92 ENTER SELECT Figure 5 3 Configuration Mode Input Selection Select Manual Co Manual CORROSOMETER for CORROSOMETER probe configuration or Manual CoT Manual CORROTEMP for a CORROTEMP probe configuration This will display any existing entries on the probe list together with an entry menu bar such as the list in Figure 5 2 NOTE The other selections in this sub menu are not applicable to use of this program with the CK4 instrument They are part of the CORRDATA software for the ful
36. computed automatically over a period of time by using the vertical cursors to select the desired time span and pressing Enter Printing from CORRDATA Software To print from the CORRDATA software it 1s necessary to load an MS DOS graphics file BEFORE loading the CORRDATA program since there is no integral graphics printing in the program Recent MS DOS operating systems have screen graphics printing capability from the Shift Print Screen key For MS DOS 4 01 it 15 necessary to have typed graphics at the DOS prompt before running the CORRDATA software This will be suitable for most dot matrix printers However it does not serve laser or inkjet printers NOTE The graphics file may already be running if it is loaded as part of your AUTOEXEC BAT 46 CK4 Reference Manual Print screen 15 then initiated by Shift Print Screen Only a limited range of printers are supported See MS DOS manual Graphics for more detail With MS DOS 5 0 a larger range of printers are supported with the graphics command including laser jet paintjet and deskjet printers For the common printers listed below type the command shown at the DOS prompt before entering the CORRDATA program IBM Proprinter graphics r HP Laserjet graphics laserjet r HP Laserjet II graphics laserjetii r HP Deskjet graphics deskjet r The E screen 15 again initiated by Shift Print Screen For more detailed instructions see the MS DOS 5 0 reference manual 47 Ch
37. data from a Corrosometer RDC CO or Corrator RDC CA Remote Data Collector Certificate BAS No 92C2435 Coded EEx ia Tamb 70 C or T4 Tamb 50 C or Corrosometer Probes Certificate BAS No Ex 90C2388X Coded EEx ia TA The stored information may only be transferred in the non hazardous area to a personal computer via an Isolator Cable 723031 part of Certificate BAS No Ex 92C2435 The data logger comprises electronic circuits on two printed circuit boards with a membrane keyboard and a liquid crystal display all housed in a plastics enclosure which provides a Degree of Protection of at least IP20 The data logger is powered by six alkaline batteries type IEC LR6 The batteries must only be changed in the non hazardous area Intrinsic safety is assured by limitation of capacitance infallible current limiting resistors internal limitation of voltage and infallible segregation The intrinsically safe parameters at the communication socket are Pins 2 amp 3 to pin1 Umax out 10 9 V dc Umax in 10 9 dc Imax out 23 mA dc Wmax in 0 3 W Wmax out 63 mW Pins 4 to 15 inclusive Umax out 60 V Connection only to Corrosometer Probes Imax out 0 55 Certificate BAS No Ex 90C2388X Wmax out 1 1 Sheet 3 6 Schedule Certificate of Conformity BAS No Ex 92C2417 dated 20 November 1992 DRAWINGS Number 99 0597 0000 Shts 1 amp 2 BOM 99 0597 0002 Shts 1 amp 2 97 0395 0001
38. e Springs California 90670 USA for the RANGE OF CORROSOMETER PROBES is hereby extended to apply to apparatus designed and constructed in accordance with the specification set out in the Schedule of the said Certificate but having the variations specified in the following Schedule VARIATION TWO To permit minor changes to drawings none of which affect the intrinsic safety assessment DRAWINGS Number Sheet Issue Date Description 037085 F 11 12 92 Element Fabrication 028040 H 07 05 92 Element Fabrication File No EECS 0900 02 001 CERTIFICATE BAS NO Ex 90C2388X 2 I M CLEARE DIRECTOR EECS TG 3 March 1993 Electrical Equipment Certification Service Health and Safety Executive Harpur Hill Buxton Derbyshire SK17 SIN United Kingdom Health amp Safety Tel 0298 26211 Fax 0298 79514 Telex 668113 RLSD G Executive dto de SES S OSA s CC E E Sg os oA
39. l Equipment Certification Service lt Health and Safety Executive H SE 6 Harpur Hill Buxton Derbyshire SK17 9JN United Kingdom Health amp Safety Tel 0298 26211 Fax 0298 79514 Telex 668113 RLSD Executive g Schedule Certificate of Conformity BAS No Ex 90C2388X dated 25 April 1991 APPARATUS A Range of Corrosometer Probes designed to determine the extent of corrosion taking place over a period of time This is achieved by closely monitoring the increase in resistance of the probe circuit as the probe cross sectional area is reduced by corrosion Corrosion probes comprise of a number of different mechanical arrangements and may be manufactured from a number of different alloy materials Umax in 13 V Imax in 1 8 at 5 63V Wmax in 3 17 W leg 0 0 The range consists of Types S4 S10 T4 S8 W80 S20 T8 S40 T10 S8F T20 T50 in the following materials Nickel Alloys Alloy code 8042 UNS N06625 UNS N08904 UNS N05500 UNS N04400 UNS N02211 UNS N02200 UNS N02270 Stainless Steels UNS 530900 UNS 531000 UNS 531603 UNS 531600 UNS 531700 UNS 531703 UNS S34700 UNS 530100 UNS 530200 UNS 530300 UNS 530400 UNS 530403 UNS 530500 Alloy code 8016 UNS 541400 UNS 532100 UNS 31980 UNS 534700 UNS 543000 UNS 540500 UNS 540300 UNS 542000 UNS 541000 Alloy code 8046 UNS 550200 Alloy code 8047 Copper Alloys UNS C71500 UNS C70610 UNS C64200 UNS C60600 UNS C51
40. layed list of files example MAR93V SAV This will produce a display similar to the following Figure 6 4 CORRDATA P C Software File Retrieval Press Tab to switch from the pathname box to a highlight bar in the file list box Use the f or arrows to select the required RDC and press Enter Press Display and View to display the graph The graph may be zoomed as required and corrosion rates displayed with the cursor keys and Enter To return to the current operating probe list press Esc and List 38 Reference Manual 39 Chapter 7 Corrosion Data Analysis In the CORRDATA software package the corrosion data may be viewed one probe at a time in a graphical format which 1s generally the most useful to interpret corrosion events and trends Once data has been collected by the CK4 and transferred to the P C the CORRDATA software program 15 ready to display that data It should be made clear here that CORROSOMETER and CORROTEMP probes directly measure metal loss rather than corrosion rate A single reading from a CORROSOMETER or CORROTEMP probe cannot give the corrosion rate at that time The metal loss over some finite period of time must be used to calculate corrosion rate In a sense the CORROSOMETER and CORROTEMP probe metal loss measurements can be likened to an automobile odometer or mileometer The corrosion rate on the other hand can be likened to the speedometer For a CORROSOMETER
41. lection of units mils millimeters or micrometers Graphical display of metal loss data for CORROSOMETER probes Graphical display of metal loss and temperature from CORROTEMP probes Zooming in on graphical displays Editing of metal loss data to show corrosion rates over selected periods and dates of selected period Up to 1131 corrosion data points may be displayed for each probe In the CORRDATA CK Software program provision has been made for future development and extension of integrated corrosion data This 1s apparent by some grayed or barely visible menu items These items are not accessible in this software release In addition this program may be used as an add in the CORRDATA Basic Software program to provide manual input capability to the fully automated system which the CORRDATA system provides This 1s useful to customers that have both CK3 or CK4 instruments and CORRDATA systems A typical CORROSOMETER probe data entry screen is shown below in Figure 4 1 A typical CORROSOMETER or CORROTEMP probe metal loss graph output 1s shown in Figure 4 2 Fora CORROTEMP probe it 1s possible to toggle between the metal loss graph and the temperature graph such as shown in Figure 4 3 by pressing the key T 14 4 Reference Manual Figure 4 1 Typical CORROSOMETER Probe Data Entry Screen Metal Loss mils Chapter 4 System Overview 15 CORROTEMP ID 23 Probe Tag AE 0023 0 0 5 10 15 20 Ti
42. ly automated data collection that may be achieved with Remote Data Collectors and either a Mate I or Mate II data transfer unit To see a demonstration of the capability of this type of system retrieve the demonstration graph DEMO SAV as described later in the section Archiving and Retrieving Old Data Files Press Enter to bring up the information entry screen Fora CORROTEMP probe the screen would appear as follows 20 4 Reference Manual CORRDATA CORROSION MONITORING SOFTHARE Mew Pear EST Load RBDC Co CORROTEMP Probe RDC Ca Co Probe Tag AE 2351 CORROTEMP ID Ho Ca Probe Manusl Co Location U107 Overhead Condenser Manual Model 3500 T20 K03005 18 0 0 Alloy pri Tupe 5 Span ECHTE Alarm Hate MNils year EHTER SELECT Figure 5 4 Configuration Mode CORROTEMP Probe Information Entry Screen The dialogue box provides for all the information needed for this probe Some items must be completed while others are optional For an CORROSOMETER or CORROTEMP probe the fields that must be completed are a ID Number Range 1 to 50 and A to Z b Type See Probe or Figure 5 5 Span See Probe or Figure 5 5 Use the or keys to move between the highlighted entry fields Press the Enter key to gain access to the data entry box Type in the required data using the backspace arrows or delete keys as necessary For fields with pre selected values use the or arrows
43. me in Days Rate 41 71 mpy From O2 Oct 92 to O6 Oct 92 Figure 4 2 Typical CORROSOMETER or CORROTEMP Probe Metal Loss Graph Temperature Deg C CORROTEMP ID 23 Probe Tag 0023 0 5 10 15 20 Time in Days Ave 26 08 Deg C From 23 Sep 92 to 14 Oct 92 Figure 4 3 Typical CORROTEMP Probe Temperature Graph 16 CK4 Reference Manual 17 Chapter 5 System Configuration Procedures Entering Probe Configuration information on the P C CORROSOMETER and CORROTEMP probe configuration data 1s easily entered on the P C with CORRDATA CK Software This configuration 15 subsequently used for displaying the manually entered probe readings in engineering units on graphical displays To commence probe configuration on the P C select the CORRDATA directory in which the CORRDATA program 15 located and type CK to start the program Press Enter to clear the RCS CORRDATA CK introduction screen and display the main menu Help screen information 15 available via the key for the menu items CORRDATA CORROSION MONITORING SOFTHARE i t ig i i Figure 5 1 Main Menu Screen 18 CKA Reference Manual From the main menu and sub menu select SetUp and Units Select the engineering units required for display purposes from mils 001 millimetres mm or micrometres um and press Enter For first time probe configuration select Configure NOTE Menu items may be selected using the cursor keys space bar tab forward shift tab ba
44. nd check elements are protected from the process to which the measurement element is directly exposed Temperature changes in the process will therefore affect the measure element before the reference and check elements Because of the very low resistances involved these changes can significantly affect the metal loss readings CORROSOMETER probes incorporate special design features to minimize the thermal resistance of the materials insulating the reference and check elements from the process It should also be noted that cylindrical probes are inherently better able to react to temperature changes due to location of the reference and check elements concentrically inside the measure element 57 Appendix B Special Conditions or Limitations for use of Intrinsically Safe Equipment to European Harmonized Standards BASEEFA Certifications of the CORRDATA system to the harmonized European standard for intrinsic safety are included in this Appendix a BAS No Ex 92 2417 CORRDATA Mate CORRDATA Mate II 14 pages b BAS EX 90C2388X Range of CORROSOMETER Probes 8 pages The conditions set out in these documents must be followed to ensure that the certifications are valid 58 CK4 Reference Manual 9 XC C e e Ee 9 British Approvals Service for Electrical Equipment in Flammable Atmospheres 1 CERTIFICATE OF CONFO
45. ngs on each probe can be displayed and zooming in can be done to as little as one day MS DOS graphics enables any screen to be printed at the touch of a button 4 CK4 Reference Manual Chapter 2 Specification CK4 CORROSOMETER Instrument Electronics 4 Compatible with all CORROSOMETER and CORROTEMP probes LCD Readout Sealed membrane keyboard Metal loss resolution 0 1 of probe span Metal loss repeatability 0 5 of probe span Temperature resolution s IC Temperature accuracy 3 C including probe sensor Power Supply 6 AA Alkaline cells 4 Battery Life Typical 8 hours of continuous operation Automatic power shut off in 45 secs after reading or non use 4 Supplied with test probe 4 Reading memory for 26 probes 6 4 Reference Manual Mechanical Splash proof enclosure Dimensions 7 75 H x 4 30 W x 2 D 196 8 mm x 109 2 mm x 50 8 mm Supplied in carrying case Weight without carrying case 1 5 Ib 680 g 9 Weight with carrying case 5 5 Ib 2 5 Kg Environmental Temperature range Operating OF to 122 18 C to 50 Storage OF to 150 F 18 C to 70 Humidity 0 95 non condensing P C Requirements IBM P C or compatible VGA or EGA graphics 640k memory floppy disk drive Hard disk Memory requirement 400K plus 40K per probe MS DOS 3 3 or higher operating system MS DOS 4 01 or 5 0 preferred Chapter 3 Installation NOTE
46. o the next probe to be read NOTE The CK4 has an automatic shut off 45 seconds after a probe has been read or if the instrument is inactive in order to conserve the batteries Reading CORROTEMP Probes Reading the corrosion data on a CORROTEMP probe 15 exactly the same as for the CORROSOMETER probes described above To read the temperature on these probes select TEMP instead of probe type as follows Switch ON the CK4 and select READ F1 to show this screen MEAS MP degq SELECT PROBE TYPE WIRE T S SPEC TEMP 30 Reference Manual Press TEMP F4 The instrument will indicate that the probe temperature 15 being read After approximately 45 seconds the probe temperature reading will be displayed along with the measure and check probe readings 1f these have already been taken on this probe WARNING For CORROTEMP probes remember to read both the corrosion and the temperature data NOTE Actual date and time display is linked to the corrosion data since there is limited display space to show it separately for both temperature and corrosion data This is not a problem if both corrosion and temperature readings are taken at the same time as recommended However it would have an effect if the corrosion and were taken at significantly different times a particular probe Displaying Probe Data on the 4 Probe data may be reviewed on the CK4 at any time either in the field or
47. or CORROTEMP probe the current corrosion rate must actually be calculated on the metal loss occurring over some finite period of time normally ranging from a few hours to a few days Hence for the CORROSOMETER or CORROTEMP probe corrosion rate 15 always a calculated number The CORRDATA system can be extended with Remote Data Collectors RDC s and either a CORRDATA Mate I or Mate II to automatically collect corrosion data The advantage of RDC s 15 to provide much higher frequency of measurements and a much improved resolution of corrosion dynamics The graphical display of RDC generated data 1s similar to data generated by individual robe readings in that straight lines are drawn between the individual readings The only difference etween the two types of data 1s that data points from direct probe measurements are identified with small circles around each point NOTE An example of the type of data from such an RDC system may be viewed by retrieving the DEMO SAV file through the file retrieve sequence 40 CK4 Reference Manual Displaying CORROSOMETER and CORROTEMP Metal Loss Data To display any of the current CORROSOMETER or CORROTEMP metal loss data it is first necessary to select the sub directory containing the CORRDATA program and type the command CK NOTE Selection of the sub directory CORRDATA and issuing of the command CK may be incorporated into your PC shell or menu to give direct entry to the CORRDATA program selec
48. ording 2 Reference Manual The combination of corrosion and temperature measurement is particularly useful in process plants chemical plants and refineries where changes in operating temperature can have a major impact on corrosion rates High temperatures that push or exceed the design conditions may improve output but may result in unacceptably high corrosion rates The brings direct correlation between temperature and corrosion rate from one instrument The 4 instrument allows readings to be stored for up to 26 probes This stored data 1s later retrieved on the CK4 and entered into the CORRDATA CK Graphical Software package This software package 1s supplied free of charge with each instrument UN 7 OOO Figure 1 2 Data display on P C Graphical displays of metal loss against time and temperature against time are immediately available for analysis d print out Cursors allow selection of any portion of the graphs for automatic statistical computation of corrosion rates or average temperature on CORROTEMP probes 1 131 probe readi
49. other hand are affected to a much lesser degree by pitting because of the much larger circumference of the measuring element Wire loop and tube loop elements also have a tendency to be electrically shorted by a bridge of iron sulfide corrosion product This 1s especially prevalent 1n low velocity streams over an extended period The effect of such bridging is to reduce the measured metal loss of the probe creating a misleadingly low corrosion rate Cylindrical probes demonstrate more resistance to iron sulfide bridging due to their construction and lower inherent resistance per unit length thus minimizing the effect of the shunt resistance Where pitting or substantial Fe S deposition are expected to be problems cylindrical probes should be chosen wherever possible over loop style probes FIGURE 4 Most cylindrical probes are of all welded construction in order to eliminate the need for sealing metal elements to non metallic glass epoxy or ceramic This all welded construction gives the probe superior resistance to leaking Probes with higher temperature ratings can also be constructed in the all welded style A drawback to the all welded style 15 that the element 1s electrically connected to the pipe wall which can in certain conditions interfere with the corrosion reaction on the probe Also b orc cylindrical probes are welded in some conditions preferential corrosion can occur in the heat affected zones near the weld Flush probe element
50. ow resistances involved very sensitive monitoring circuits are used in CORROSOMETER instruments to measure the change in probe resistance compared to a protected reference element resistance series connected to the corroding measurement element A check element is also included and is protected from the process along with the reference element The ratio of check to reference resistance should remain constant If 1t doesn t this indicates that degradation of the reference element may be occurring and that metal loss readings obtained from the probe are questionable A simplified diagram of a typical electrical resistance monitoring circuit is shown in Figure 1 EXPOSED MEASURE ELEMENT PROBE CURRENT DRIVE PROTECTED REFERENCE ELEMENTS R measure V measure Since meas I ref R ref Y ref FIGURE 1 52 CK4 Reference Manual As with coupons CORROSOMETER probes must be allowed to corrode for a period of time before accurate corrosion rate measurements can be made The actual length of time required depends upon the corrosion rate the higher the rate the shorter the time required and vice versa CORROSOMETER probes are available in a variety of styles and with useful probe life span ranging from 2 25 mils in styles commonly used in process piping systems Instrumentation to measure electrical resistance probes divides the probe span into 1000 divisions A probe with a 2 mil span is therefore theoretically capable of
51. r Elements A 15 01 91 Typical Arrangement of replaceable insert probes A 15 01 91 Typical Arrangement of High Pressure probes A 15 01 91 Typical Arrangement of Fixed and retractable probes Sheet 4 5 Schedule Certificate of Conformity BAS No Ex 90C2388X dated 25 April 1991 Number Issue Date Description 030633 H 29 11 90 Strip Element Flush Mount 023003 G 29 11 90 Corrosometer Element 030822 C 29 11 90 Element Flush 037447 J 29 11 90 Element Fabrication 037126 G 29 11 90 Element Fabrication 037085 E 29 11 90 Element Fabrication 028040 G 08 04 91 Element Assembly SPECIAL CONDITIONS FOR SAFE USE 1 The exposed element must be housed in such a manner to provide a degree of protection of not less than IP20 2 The element must be replaced when the end of life resistance is reached 3 In most installations the probe cirucit will not be capacble of withstanding the 500 V a c test to earth or flame for 1 minute If this is the case then suitable precautions must be taken in accordance with National Codes of Practice ie in the UK BS5345 Parts 1 and 4 Sheet 5 5 9 9 de idi de de de de British Approvals Service for Electrical Equipment in Flammable Atmospheres Certificate of Conformity Variation THIS IS TO CERTIFY THAT CERTIFICATE BAS NO Ex 90C2388X Held by ROHRBACK COSAS
52. re 00 00 15 midnight at the start of the day 34 Reference Manual NOTE The Time entry box is set to a default of 12 00 mid day This may be left unchanged if the time of day that readings were taken is not critical For example some pipeline probe application may show low corrosion rates of a mil per year or similar In this case the variation of a few hours in the exact time that the probe is read has negligible effect Enter the probe Check reading from the CK4 screen The very first probe entry 15 the most critical as it 1 the one against which all the others will be compared to determine 1f the check reading has gone bad This is based on 20 divisions or 2 5 of span from the initial reading and 1s indicated by a thinner graph line than the normal for the segment of the graph following the bad check reading WARNING Once the first reading has been saved with the F2 key the initial check reading cannot be reset without first deleting the probe in the Configure menu This applies even if the Edit command is used to change the check reading as displayed Enter the probe Measure reading from the CK4 screen Fora CORROSOMETER probe this will complete the list of probe entries Fora CORROTEMP probe the last entry is Temperature Enter the Temperature reading from the CK4 screen in the same units of degrees centigrade When satisfied with all the entries for that probe reading press F2 to save the data NOTE At least t
53. robe life 1 pixel This 1s determined by the condition ofthe CORROSOMETER or CORROTEMP probe check reading The probe check reading should remain constant within 2 5 of probe span If it does not it indicates possible damage to the probes internal reference element A bad check reading condition 15 recorded along with the metal loss and causes the graph to change to a thin line The thin graph line indicates that this part of the metal loss graph may be suspect and that the probe should be replaced Corrosion occurring on the reference element will generally cause a decrease in the recorded metal loss Displaying Temperature on CORROTEMP Probes CORROTEMP probes are CORROSOMETER probes with an added temperature sensing device To do the temperature graph select the CORROTEMP probe from the probe List in the normal way Use the T key to toggle between graphs of metal loss and temperature Chapter 7 Corrosion Data Analysis 45 CORROTEMP ID 23 Probe Tag AE 0023 Temperature C 5 10 15 20 Time in Days Ave Deg C day 21 14 Oct 92 Figure 7 6 CORROTEMP Probe temperature graph The temperature graph may be zoomed in the same way as the metal loss graph For convenience the X axes of the two graphs zoom together to display the same time period of data The Y axes of the two graphs are independent NOTE Only one graph of metal loss or temperature may be zoomed in on at a time The ies s temperature measurement may be
54. rogram 15 ready to receive the first set of probe data Setting the Clock on the CK4 The CK4 has its own clock so that individual probe readings are automatically date and time stamped To set the CK4 clock switch ON the CK4 which will display the following screen ROHRBACK COSASCO SYSTEMS READ DISP SPAN TIME Press TIME F4 SET DATE Jan 30 93 TIME 15 07 28 MONTH DAY YEAR EXIT To set the month press MONTH F1 once to increase Hold down the key to scroll through the months To reverse the direction of scrolling press the ALPHA NUMERIC key once To toggle back the scrolling direction press the ALPHA NUMERIC key again Follow the Chapter 5 System Configuration Procedures 23 same procedure to change the DAY F2 and the YEAR F3 When complete press EXIT F4 This will change the screen to the following DATE Jan 30 93 SET TIME 15 07 28 HOUR MIN SEC EXIT To setthe hour press HOUR F1 once to increase Hold down the key to scroll through the hours Toreverse the direction of scrolling press the ALPHA NUMERIC key once Press the ALPHA NUMERIC key to return to forward scrolling again WARNING The hour is set on the military 24 hour clock where 00 00 hours is midnight at the start of the day and 12 00 is mid day Follow the same procedure to change the MIN F2 and the SEC F3 When complete press EXIT F4 to return to the main menu Configuration of CK4 Probe Span Corrosion rate data is
55. s are thin flat metal sections embedded in epoxy or a hermetic glass seal inside a metal probe body Flush probes also experience certain characteristic problems most notably lack of adhesion of the metal element to the epoxy cracking of glass seals due to differential expansion and erosion of the epoxy or glass due to high velocities abrasive materials in the flowstream or both Flush CORROSOMETER probes mounted on the bottom ofthe line have been shown to provide good results in a sour gas gathering system 56 CK4 Reference Manual Because the measurement element is part of the primary pressure seal and because it s designed to corrode CORROSOMETER probes have a reduced resistance to leaking after prolonged exposure Once the measurement element has corroded through the internals of the probe body are exposed to the process fluid Although materials are chosen in part for their strength and lack of permeability it is our experience that process fluids will permeate throughout the probe packing material For this reason quality probes are constructed of corrosion resistant body materials and include a secondary pressure seal often consisting of a hermetic glass sealed connector Other back up seals are utilized In special cases especially where process fluids will attack glass e g hydrofluoric acid service Please contact the factory 1f you have any questions about the compatibility of probe materials with your application The reference a
56. s require installation of a re programmed chip which must be done by Rohrback Cosasco Systems 49 Chapter 9 Troubleshooting Checking CK4 Instrument Trouble shooting on the CK4 1s very basic and simple A test probe with specified measure check and temperature readings is provided which may be read by the CK4 The readings should be within the limits given on the test probe If they are not then the unit should be returned to Rohrback Cosasco Systems for repair There are no user adjustments on the instrument P C Software If the CORRDATA program does not start up on your computer check the specification of your system meets the requirements listed in Chapter 2 of the manual If any part of the program does not work correctly it may be the result of a corrupted program file If this occurs re install the CORRDATA program from the diskettes supplied This will not affect any probe data that has been collected or the probe list file If Problems Still Occur If problems still occur contact the factory for assistance 50 CORRDATA Mate ll Reference Manual 51 Appendix Theory of Operation of CORROSOMETER Systems CORROSOMETER Systems are based on the electrical resistance method of corrosion monitoring pioneered by Rohrback in the 1950 s and 1960 s CORROSOMETER probes are basically electrical coupons They determine the loss of metal from the probe by measuring the change in its resistance Because ofthe very l
57. t check reading becomes the reference against which the subsequent check readings are compared for checking the reference element integrity NOTE A bad check reading causes the subsequent graphical displays to have a thin line instead of the normal thick line If the probe being replaced 15 of a different span the probe span on the CK4 should be changed accordingly If the probe is of a different type make sure that the correct type 1s entered on the CK4 at the time of reading On the P C archive the old probe data as described later this chapter delete the old probe data by deleting the probe from the Configure menu Enter the new probe configuration information and then the new probe enn The first probe data Eu then becomes the reference for the subsequent check readings 32 CK4 Reference Manual Entering Probe Data into the P C When all the probe data has been collected on the CK4 it 1s time to transfer the data to the CORRDATA CK software program The CORRDATA program provides immediate graphing ofthe probe data automatic corrosion rate calculation UE any selected data printing of the graphs and archiving of the data for future reference To commence us data entry startthe CORRDATA CK us gram and from the main menu d File and from the sub menu Man Input This will display the listing of configured probes Figure 6 1 Manual Input Probe List NOTE If this program is used as an add in to the CORRDATA
58. t Display from the main menu and then List from the sub menu to display the current probe list A probe list summary of all the probes on the system will be added to the screen Figure 7 1 Probe Display Selection NOTE Many of the selections in this menu are dimmed or barely visible These additional features are for future developments in integrated corrosion measurements Use the or keys to select the required CORROSOMETER or CORROTEMP probes Press Esc to return to the display sub menu and View to display a metal loss against time graph such as the following Chapter 7 Corrosion Data Analysis 41 CORROTEMP ID 23 Probe Tag 0023 Metal Loss mils 5 10 15 20 Time in Days Rate MPY day 21 14 Oct 92 Figure 7 2 CORROSOMETER or CORROTEMP Probe Metal Loss Graph NOTE Ifa probe has not been selected from the probe list or no probe data has been collected for the selected probe a blank graph will briefly appear and then disappear when view is selected Initially the y axis of the graph 15 scaled to the full span of the probe life e g a T10 probe has a 5 mil span a T20 has a 10 mil span see Figure 5 5 and the x axis fus a time period corresponding to the period of data collected m to a maximum of 1 131 readings The last recorded probe data is on the right hand side of the screen Data older than the 1 131 points 15 discarded as new data 15 added To keep data older than this s the data to a separ
59. uch as c CORRDATAMAR 9310 B SAV 36 Reference Manual already created in DOS Press Enter to save the file or use Esc to leave this screen without saving NOTE Inthe CORRDATA software data files can only be saved to an archive directory one at a time Archived data files may also be retrieved for the full viewing and analysis capability of the CORRDATA program via the Display menu Only one data file at a time may be viewed from the archive files Exiting the View or Range on the Display sub menu to List or back to the main menu will automatically cancel the archived data file selection However range zooming and rate calculations on graphs are fully operational on the retrieved file before exiting as described NOTE A retrieved file is never added to the probe list in the current CORRDATA program directory This may only be achieved by changing the filename outside the program to an unused ID number installing the file in the CORRDATA program directory and then selecting this ID number through the NEW entry screen in the Configure mode and View in the display mode Chapter 6 Normal Operating Procedures 37 To Retrieve an archived file select File from the main menu and Retrieve from the sub menu The box that appears will show a pathname box with a cursor present and a blank file box Modify the pathname as required to select the required directory ad files using wildcards and extensions as convenient to simplify the disp
60. ut having the variations specified in the attached Schedule File No EECS 2997 02 001 CERTIFICATE BAS NO Ex 92C2417 2 I M CLEARE Sheet 1 2 DIRECTOR EECS TG 7 June 1993 Electrical Equipment Certification Service Health and Safety Executive Harpur Hill Buxton Derbyshire SK17 9JN United Kingdom Health amp Safety Tel 0298 26211 Fax 0298 79514 Telex 668113 RLSD G Executive a Ce Ce eee Ee E SE s Schedule Certificate of Conformity BAS No Ex 92C2417 2 dated 7 June 1993 VARIATION FIVE DRAWINGS Number 33 0140 0000 Sheets 1 and 2 33 0140 0000 Sheets 1 and 2 33 0139 0000 Sheets 1 and 2 98 0139 0000 98 0139 0000 98 0139 0001 89 0140 0000 Sheets 1 and 2 89 0140 0000 Sheets 1 and 2 89 0140 0000 Sheets 1 and 2 89 0140 0000 Sheets 1 and 2 89 0140 0001 Sheets 1 and 2 89 0140 0001 Sheets 1 and 2 98 0139 0001 Sheets 1 4 98 0139 0000 Sheets 1 4 98 0139 0000 Sheets 1 4 To permit changes to the Bills of Materials to align with the Schematics and other minor changes to the drawings Intrinsic safety is not impaired Issue D2 Di E2 E3 C Date 5 25 93 5 25 93 5 25 93 5 25 93 5 25 93 5 25 93 5 25 93 5 25 93 5 25 93 5 25 93 5 25 93 5 25 93 5 25 93 5 25 93 5 25 93 Description HT 1121E Schematic HT 1121E Schematic RCS BD2 Schematic RCS BD2 PCB Assembly RCS BD2 PCB Assembly RCS
61. wo probe readings must be entered to be able to display a graph From the manual probe list summary or the individual probe data list the graphical display may be viewed by the shortcut key F3 Esc will then return back to the same place The full display features are available under Display on the main menu When one entry has been completed press Esc to return to the manual probe summary list and select the next probe for data entry When all the probes have been completed press Esc as required to return to the main menu Probe data entries may be edited in the probe data entry screen within certain limits First select the probe to be edited from the manual probe summary list using the Insert key instead of the Enter key The date of a probe reading the middle of a list may only be changed between the dates of the readings on either side of it If the date 1s changed beyond this the graph will turn back on itself when viewed NOTE The first and last probe readings in the list may not be deleted from this screen If this is required the whole probe must be deleted from the Configure menu Chapter 6 Normal Operating Procedures 35 The first reading in the probe data 15 particularly important as it is used by the program as a the reference for the probe check against which all other check readings will be compared to indicate a bad reference element Once this reading has been entered initially even editing will not
62. xplosion Gases have a separate classification for explosive tendency based on hot surface temperatures which are not necessarily the same as the spark ignition energy The temperature rating T4 indicates that no temperature of the equipment exceeds 135 at 50 even under fault 8 4 Reference Manual nt This rating includes all listed gases except carbon disulphide which requires T5 rating Care must be taken with intrinsically safe systems to maintain their carefully designed integrity The major features to note are as follows 1 The batteries in the CK4 instrument must be replaced in a safe area even 1f the unit is intrinsically safe since the standard alkaline batteries are only safe 1f housed in a suitable enclosure Absolutely no substitution of parts or unauthorized repairs must be undertaken or the certifications are rendered invalid CORROSOMETER CK4 Instrument The 4 15 supplied with a set of six 1 5 V AA alkaline batteries To install these batteries remove the access panel on the back of the unit see Figure 3 3 and install the batteries with the polarities as indicated Chapter 3 Installation 9 REMOVE THESE SCREWS TO REPLACE BATTERIES 6 ALKALINE Figure 3 1 Battery Replacement on CK4 10 CK4 Reference Manual To check that the unit 1s operational press the ON button The screen should appear as in Figure 3 4 ROHRBACK COSASCO SYSTEMS READ DISP SPAN TIME Figure 3 4 CK4 Start Up
63. y once before using the TENS or ONES keys press the ALPHA NUMERIC key again to toggle back to the normal Chapter 5 System Configuration Procedures 25 scrolling Enter the probe span in mils as marked on the probe irrespective of the units chosen in the SetUp of the P C program The probe spans for various probe types are also listed in Figure 5 5 NOTE A corrosion rate will only be computed on the CK4 instrument display if the probe readings are more than fourteen days apart CORROSOMETER or CORROTEMP Type Span Probe Element mils Strip Loop 54 Flush Element 54 Atmospheric Element S4 strip Loop 58 Tube Loop T4 Flush Element 58 Atmospheric Element 58 Tube Loop T8 Flush Element 510 5 Cylindrical Element T10 Flush Element 520 Cylindrical Element T20 Wire Loop Element W40 gt CT Wire Loop Element W45 11 25 Flush Element S20 20 Wire Loop Element W80 Cylindrical Element 150 p 2 _ Figure 5 5 CORROSOMETER and CORROTEMP Probe Types and Spans CAUTION CORROSOMETER Model 2500 3500 or 4500 probes are designated as a cylindrical element not a tube element which refers only to tube loop elements If tube strip or wire element is selected but a cyclindrical element is being read the measurement will return as 90 Please select the correct probe type 26 CK4 Reference Manual Clearing Memory on 4 Normally it will not be necessary to clear the memory on the

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