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CTR5000 Operating Instructions 

 

56 

ASL operating instructions, model CTR5000 

4.5.7.2

 

Review coeffs 

Shown below for the DIN90 method – 

 

 

 

 

 

 

 

 

4.5.7.3

 

Edit coeffs 

Shown below for the ITS-90 method – 

 

 

 

 

 

 

 

 

Note that there are more than five coefficients In this example. Select one of the 
coefficients (e.g. 

Ap

) – 

 

 

 

ChA  ITS90          Pb09              12:02:03 

E s c  

 

 

1 

2 

3 

4 

5 

6 

7 

8 

9 

 

 

 

0 

  

 
 
 
 
 
 
 
 
 

 

 

1  R0   

=+100.0000 

 

2  A90  

=+3.90830-3 

3  B90  

=

 

-5.77500-7 

4  C90  

=

 

-4.18300-12 

 

 P b     1 6     D I N 9 0  

ChA  ITS90          Pb09              12:02:03 

E s c  

 

 

1 

2 

3 

4 

5 

6 

7 

8 

9 

 

 

 

0 

  

 
 
 
 
 
 
 
 
 

 

 

1  R0.01 

=+100.0000 

 

2  Ap   

=+3.90830-3 

3  Bp   

=

 

-5.77500-7 

4  Cp   

=

 

-4.18300-12 

 

 P b     1 6     I T S 9 0  

5  Dp   

=

 

-4.18300-12 

 

Содержание CTR5000

Страница 1: ...CTR5000 Operating Instructions ASL operating instructions model CTR5000 i Manual Precision thermometer CTR5000 Accuracy 0 01 K Version 1 1 03 14 ...

Страница 2: ...rences between CTR5000 and F250 15 1 4 Principles of measurement 16 1 5 Temperature measurement 16 1 6 Measurement units 16 1 7 Security 17 2 SETTING UP THE CTR5000 18 2 1 Safety information 18 2 2 Unpacking the instrument 18 2 3 Getting started 19 3 ABOUT THE CTR5000 PRECISION BRIDGE 21 3 1 The front panel 21 3 2 About the LCD display screen 22 3 3 LED indicator 22 3 4 Keypad 22 3 5 Input connect...

Страница 3: ...g channels 41 4 5 1 Channel selection method 1 41 4 5 2 Channel selection method 2 42 4 5 3 Difference channel selection 43 4 5 4 Channel selection with CTS5000 8 and CTS5000 16 switchboxes 45 4 5 4 1 Method A 45 4 5 4 2 Method B 46 4 5 4 3 Method C 48 4 5 5 Channel and probes 50 4 5 6 Probe review and edit 51 4 5 6 1 Probe menu 51 4 5 6 2 Probe selection individual 52 4 5 6 3 Probe groups menu fr...

Страница 4: ...83 5 1 Instrument measurement working range 83 5 2 Measurement ranges 83 6 CALIBRATING THE CTR5000 84 6 1 CTR5000 reference calibration 84 6 2 Equipment 84 6 3 Calibration procedure 84 6 4 Full instrument calibration procedure 84 7 OBTAINING THE BEST FROM THE CTR5000 BRIDGE 86 7 1 Procedure 86 8 COMMUNICATIONS INTERFACE AND PC COMMANDS 87 8 1 Introduction 87 8 2 Interfaces 87 8 2 1 USB device driv...

Страница 5: ...ns and weight 104 10 6 Approvals 104 11 CLEANING AND MAINTENANCE 106 11 1 Cleaning 106 11 2 Maintenance 106 12 SERVICE AND WARRANTY 108 12 1 Technical Support 108 13 APPENDIX 1 DEFINITIONS AND TERMINOLOGY 109 14 APPENDIX 2 FIRMWARE UPDATE 110 14 1 Firmware updates 110 14 2 Firmware update disclaimer 110 14 3 Firmware update procedure 110 15 APPENDIX 3 CALLENDAR VAN DUSEN 112 15 1 Callendar van Dus...

Страница 6: ...erating Instructions vi ASL operating instructions model CTR5000 19 1 Channel report 118 19 2 Assigned probes report 119 19 3 All probes report 120 19 4 Instrument report 121 19 5 Smart probe report 122 INDEX 123 ...

Страница 7: ... the user or damage to the instrument A Note single box is used to bring special attention to something important requiring action or avoidance Copyright 2013 All rights reserved Information in this document is subject to change without notice Reproduction or modification of the whole or any part of this document in any form without ASL s written permission is forbidden except for internal use by ...

Страница 8: ... if the equipment is not used in the manner specified Only replace items or components with an approved or equivalent spare part All spare and consumable parts are available from ASL Warning The instrument is NOT designed to be used in a potentially explosive atmosphere or medical environment Warning Do NOT open the case There are no user serviceable parts inside Warning Inspect cables and probes ...

Страница 9: ...clean mains supply and controlled EM environment General warning symbol This indicates that a hazardous condition or general danger may exist You must read the relevant sections in the User Manual before using the instrument Refer to manual symbol When you see this symbol on the instrument it means that there is more information relating to this in the User Manual ...

Страница 10: ...on a suitable and secure surface Ensure air can freely circulate around the instrument Note As with all precision measurement instruments best laboratory practice is required External sources of electrical noise such as motors should not be allowed to cause excessive interference on the mains supply or on probe leads The instrument uses a universal input voltage power supply Use a plug to connect ...

Страница 11: ...rument probes can be excessively HOT or COLD during use Take suitable precautionary measures when handling probes Take care that you and other people working in the same area do not come into contact with the metallic probe or the insulating sheath near the probe which will also be hot cold Precautions apply both during use or when moving the probe from one position to another Warning Probes may b...

Страница 12: ... be treated separately in accordance with legislation that requires the proper treatment recovery and recycling of the product If you wish to discard the product then please contact your dealer supplier or representative who will advise the correct procedure for disposal Disposing of the product correctly will help to save valuable resources and prevent environmental damage Outside the European Un...

Страница 13: ...CTR5000 Operating Instructions ASL operating instructions model CTR5000 xiii This page is intentionally left blank ...

Страница 14: ...resolution 10mK accuracy and 1mK resolution Wide operational range including all 4 wire thermometers with R0 values of Pt100 100 Pt25 5 25 5 and Pt0 25 0 25 Graphical LCD for excellent viewing of results and instrument settings Statistical graphical and large display modes User selectable units ratio resistance or temperature display C F or K Internal 100 reference resistor Smart probe compatibili...

Страница 15: ...els are available the CTS5000 08 and the CTS5000 16 with 8 or 16 channels respectively The switchboxes use an expansion connector on the rear of the instrument Channels A B C D E and F operate independently of the switchboxes Unlike previous instruments units may be set on a channel basis so for example channel A may be set to C and channel B to display ohms 1 2 Definitions and terminology See app...

Страница 16: ...y entered into the instrument The CTR5000 uses the standard DIN90 conversion method when specific probe calibration data has not been entered Temperature conversion occurs in real time Note Always check that the coefficients are correctly set for the probe being used Failure to do so will almost certainly lead to incorrect measurements System accuracy is a combination of the Bridge s accuracy in m...

Страница 17: ...he probe units will remain unchanged when it is used 1 7 Security Security is important for data integrity and password protection helps to ensure that only authorised personnel can change calibration or system information Three levels of protection are provided Note All examples in the following sections apart from the section on security assume that no security mode is selected ...

Страница 18: ...n servicing or calibration use the original packaging failure to do so may invalidate the warranty and or incur additional costs outside the warranty period Please contact your agent dealer or supplier when the original packaging is unavailable To enable accurate resistance to temperature conversion to be carried out by the instrument PRT characterisation data may be required By default the CTR500...

Страница 19: ...ill start measuring the resistance8 Change one setting at a time to familiarise yourself with each of the options Start with the Unit key below the Unit legend at the bottom right of the LCD changing to C F K and back to ohms Chan Hold Unit Press the Chan key under the bottom left of the LCD The bottom row of the LCD will change to9 Ch A Ch B More Diff Press the Ch B key and the display will chang...

Страница 20: ...d 3 decimal places 0 and 4 for resistance Reset to 3 decimal places These steps cover most of the F250 functionality apart from coefficient editing and security modes Press the Stats key to display statistics mode The bottom line of the LCD will change to Chan Clr Hold Unit Clr resets the statistics values Press the blue display key again The LCD will change to display Num Graph n nnn Press the Gr...

Страница 21: ...to the left The LED to the right is used to indicate status and also that the bridge is in standby mode when the graphical display is in low power mode The various controls connectors displays and keys are described in detail in each of the following sections The four keys under the display and the two keys to the right are soft keys their function varies with the instrument operating mode wheneve...

Страница 22: ...he LED will flash orange when a fault condition is present overload etc It will flash green when an open probe is seen The LED will turn red if a serious problem is detected 3 4 Keypad The instrument s keys are grouped by type and consist of six soft keys and a twelve key numerical keypad The soft keys are used to access data and or functions within the instrument The CTR5000 keypad is shown in de...

Страница 23: ...annel select options Zero see note Zero display measurement Toggles the display zero null function Hold see note Hold display measurement Toggles the display hold measurement continues Unit Select display units Rotates through the display units C F or K Esc Escape Returns without action The LCD is redrawn Menu Display CTR5000 menu Used to select all other options and functions Note Zero will not b...

Страница 24: ...n switchboxes may be attached to the instrument via the rear expansion port connector Each switchbox has an additional 8 model CTS5000 08 or 16 channels model CTS5000 16 enabling between 2 to 70 channels to be used by the CTR5000 The selected input channel is interrogated before each measurement cycle and when enabled smart probes are identified by Smart appearing at the top of the display Open ci...

Страница 25: ...ny internal CTR5000 settings when a smart probe is seen on an input channel Each input channel can accept either a Smart probe or a Passive probe Any combination of both types of probe can be use together 3 5 2 Probe connections The inputs can be configured for 2 wire or 4 wire probes Input connections are shown below Passive PRT input viewed from the front of the instrument Pt100 1 I V Shield I V...

Страница 26: ... Kit 3 5 6 Internal 100Ω check resistor The CTR5000 contains an internal check resistor Select channel 99 to use this resistor IntR will displayed at the top left of the LCD It is quite accurate but not as temperature stable11 as the internal reference resistor The resistor will be deselected when the channel is changed or on power on It is not necessary to remove any external resistors when using...

Страница 27: ...t The mains input connector is situated on the left of the rear panel It uses a standard IEC connector and lead supplied The input connector has a switch and is fused and filtered The fuse is located within the body of the connector Use only the specified fuse value and type 3 6 4 Expansion port An expansion port connector is provided on the rear panel The connector enables up to four CTS5000 swit...

Страница 28: ...te information supplied on the CD and at the back of the manual A standard USB cable is supplied with the instrument The instrument can be controlled through simple ASCII commands and can transmit ASCII result data which may be recorded using a simple terminal program or using ASL s ULOG program The standard F250 command set is supported See the section on communications for further details 3 6 6 ...

Страница 29: ...CTR5000 Operating Instructions ASL operating instructions model CTR5000 29 This page is intentionally left blank ...

Страница 30: ... for the CTR5000 The normal display will look similar to the one shown below CTR5000 display screen The currently selected channel is always shown at the top left of the display followed by the temperature conversion method and the number of the probe currently attached to this channel The unit s symbol alternates toggles on or off every time a new reading is displayed This display always reflects...

Страница 31: ...splay modes Use the blue key on the numeric key pad to select one of these display modes The various operating modes are covered in more detail later on in this section Note The Menu and Esc keys are still active when the Statistical Graphical or Large mode screens are selected the legends are overlaid to allow increased display area 18 33 41 ChA Menu Esc Clr ITS 90 Pb08 0 523 0 477 Chan x1 Unit 1...

Страница 32: ... display the result in kelvin pressing it again will change the display to ohms one more press will return to the celcius display13 The following units are available 13 The Unit soft key is shown highlighted in this example This indicates that the current units are not the same as the pre programmed units of the attached Passive or Smart probe This feature is only an indication it has no other sig...

Страница 33: ...3 1 Hold key Pressing the Hold key will change the display to The reading is frozen indicated by the highlighted Hold key Note that Hold and Zero keys can be active simultaneously 4 3 2 Zero key Pressing the Zero key will change the display to 041 132 ChA ITS90 Pb09 12 02 03 Esc Menu Chan Zero Hold Unit C 1 2 3 4 5 6 7 8 9 0 0 000 ChA ITS90 Pb09 12 02 03 Esc Menu Chan Zero Hold Unit C 1 2 3 4 5 6 ...

Страница 34: ... The following resolutions are available Resolution Function n nnnn Display four decimal places resistance only n nnn Display three decimal places n nn Display two decimal places n n Display one decimal place n Display no decimal places 4 3 4 Display key The display key is used to change display modes between normal large statistical or graphic and to change instrument resolution 4 3 4 1 Normal di...

Страница 35: ...splay will be similar to The bottom line of the LCD is similar to the Norm screen but the zero soft key has been replaced by Clr Pressing the Clr soft key will ask for confirmation that you want to clear reset the statistics Note that the Esc and Menu soft keys are still active Press the blue display key to select an alternative display mode 041 132 ChA ITS90 Pb09 12 02 03 Esc Menu Full Stats Grap...

Страница 36: ... but the zero soft key has been replaced by Clr and the hold soft key by the scale factor x1 Pressing the Clr soft key will clear reset the graph Pressing the x1 key will change scale circulating through x1 x10 x100 and x0 1 Press the blue display key to select an alternative display mode 4 3 5 Channel soft key This is described in full detail in section 4 5 ChA ITS90 Pb09 12 02 03 Chan Clr x1 Uni...

Страница 37: ...he soft key can be used to move the cursor position one place to the right Once moved the bottom line of the display will change to The cursor position can also be moved to the left now The sign is no longer active The editor deals with fixed length coefficients The decimal place and x10 positions will be automatically skipped When the cursor is at the end of the number last exponent digit the bot...

Страница 38: ...us will always reflect the exact configuration for your instrument 4 4 1 Menu soft key All other instrument parameters and options are accessed through the Menu soft key These menus may display additional sub menus in turn Pressing the Menu soft key will change the display to menu mode Pressing the down arrow will show the following ChA ITS90 Pb09 12 02 03 Esc PgDn 1 2 3 4 5 6 7 8 9 0 1 Probes 2 C...

Страница 39: ...cted the highlighted line or press the Esc key to return without changing the current selection There are more menu items than can be shown on the screen at one time The display will scroll up and down through the list allow the required menu to be selected15 For example pressing the PgDn soft key will lead to the display The menu options are shown below16 15 A small down arrow will be shown at th...

Страница 40: ...ions Instrument options menu Comms Set and or review communication options Time Date Set time and or Date Contrast Set LCD contrast Diagnostics Instrument diagnostics menu password protected For example selecting Probes will show Note The instrument continues to measure normally during all menu displays and selection options The graph is frozen ChA ITS90 Pb09 12 02 03 Esc PgDn 1 2 3 4 5 6 7 8 9 0 ...

Страница 41: ...ted by entering 1 or 01 Channel B by entering 2 or 02 and so on17 Channel Channel number A 1 B 2 C if fitted 3 D if fitted 4 E if fitted 5 F if fitted 6 A minus B 8 B minus A 9 A alternating with B 10 A divided by B 11 A minus X 12 B minus Y 13 where X Y C D E or F Switchbox channels are selected by entering their channel numbers18 Switchbox CTS5000 16 channel number CTS5000 8 channel number 1 16 ...

Страница 42: ...The More soft key will only be displayed if more than two channels are fitted Its use will be covered below The More menu allows an alternative means of switchbox channel selection see the switchbox section When more than two channels are fitted the exact appearance of the More display depends on the number of channels fitted For example if channels C and D are fitted pressing the More soft key wi...

Страница 43: ...ook similar to Menu item 3 Sel A X selects a difference reading between channel A and another CTR5000 channel19 Similarly menu item 4 Sel B Y selects a difference reading between channel B and another CTR5000 channel For example selecting menu 3 Sel A X will display the following 19 Difference modes are not supported for switchbox channels ChA ITS90 Pb09 12 02 03 Esc PgDn 1 2 3 4 5 6 7 8 9 0 1 Sel...

Страница 44: ...n editing numbers for more details on this Note The difference can be calculated between any two valid CTR5000 channels An error message will be displayed if the channel is not available Note Smart probes take time to read their stored information The Smart probe read on channel change is disabled once a difference mode is selected To change probes select a single channel before reselecting a diff...

Страница 45: ...e interconnecting them However signal noise may increase when long cables are used There are two ways of changing the current switchbox channel Method A by using numerical keypad as described previously Method B by using the Chan soft key Method C by using the Enter key on the numeric keypad 4 5 4 1 Method A The first channel on the first switchbox starts at address 16 the first channel on the sec...

Страница 46: ...he Chan soft key and then the More soft key The display will change to21 Select the Sel chan CTS5000 menu option and press one of the enter keys The display will change depending on the number of switchboxes fitted to 21 The exact appearance of the display will depend on which additional channels are fitted to the instrument ChA ITS90 Pb09 12 02 03 Esc PgDn 1 2 3 4 5 6 7 8 9 0 1 Sel chan CTS5000 2...

Страница 47: ...tself The square covering channel 16 is the currently addressed channel shown at the top left of the display Use the and up down soft keys to move to the required switchbox channel and press the enter key to select it Alternatively press the Detail soft key to view details for the current cursor channel type of probe and coefficients Note The circle will be replaced by a highlighted S D d C or I a...

Страница 48: ...N68 C CvD I ITS90 4 5 4 3 Method C Press the Chan soft key and then the More soft key The display will change to The arrow soft keys will move through sequential channels The keys auto repeat Press the Esc key to exit 12 02 03 Esc Detail 1 2 3 4 5 6 7 8 9 0 SB25 24 16 0 1 2 3 4 5 6 7 Assigned Pb 21 D 041 132 ChA ITS90 Pb09 12 02 03 Esc Menu C 1 2 3 4 5 6 7 8 9 0 l l CTS5000 CTR5000 ...

Страница 49: ...el CTR5000 49 Note Switchbox connections are determined dynamically by the instrument at power on The CTR5000 menus will always change automatically to show the current connection configuration Warning Do NOT plug or unplug switchboxes when the CTR5000 is powered ...

Страница 50: ...e if a probe number has been assigned to the new channel If it has it will use the conversion method set up for he assigned probe If no probe has been assigned then the CTR5000 will only display the probes resistance or use the default DIN90 conversion method to display temperature22 Note The instrument will always use valid smart probe parameters to over ride the assigned probe when a smart probe...

Страница 51: ...meric data can be entered through a data link e g USB using the N command see the communications section The id string can be reviewed or edited numerical characters only on the CTR5000 The string will be reproduced on a probe report 4 5 6 1 Probe menu This menu is used to select and edit probes Select the Probe menu Menu 1 Probes i e the Menu key then Probes default then the enter key and the scr...

Страница 52: ...Probe groups menu from group Select one of the probe groups and the next screen will show second group selected in this example The top left of the probe screen shows the cursor over probe 1 Pb01 The editing arrow soft keys are used to move the cursor to the desired probe number current probe selection is indicated at the top left of the screen The majority of the probes have not been defined and ...

Страница 53: ...ation for any particular probe once the cursor is over it can be viewed using the Detail soft key For example assuming the cursor has been moved to Pb16 pressing the Detail soft key will show a screen similar to Press the Back soft key to return to the previous screen Once the cursor is over the required probe press the enter key to select this probe number for review or editing Symbol Code Probe ...

Страница 54: ... Notes 1 Conversion Select conversion method DIN90 CvD ITS90 or DIN68 2 Review coeffs View the coefficients For currently selected method 3 Probe id View and or edit the Probe id string Up to 10 characters 4 Unasgn from Ch16 Unassign from channel 16 DIN defaults restored 5 Set units Set the initial units Used on channel probe select 6 Set probe Tmax Set the probe upper temperature limit Default se...

Страница 55: ...mit Default set to DIN limits 9 Set probe Tmin Set the probe lower temperature limit Default set to DIN limits 10 Copy probe Copy current probe settings to another Channel assignment unchanged Each menu options is described below 4 5 7 1 Conversion The following screen will be displayed once the Conversion menu is selected Use the editing arrows or enter the menu number to select the required conv...

Страница 56: ... 90 method Note that there are more than five coefficients In this example Select one of the coefficients e g Ap ChA ITS90 Pb09 12 02 03 Esc 1 2 3 4 5 6 7 8 9 0 1 R0 100 0000 2 A90 3 90830 3 3 B90 5 77500 7 4 C90 4 18300 12 Pb 16 DIN90 ChA ITS90 Pb09 12 02 03 Esc 1 2 3 4 5 6 7 8 9 0 1 R0 01 100 0000 2 Ap 3 90830 3 3 Bp 5 77500 7 4 Cp 4 18300 12 Pb 16 ITS90 5 Dp 4 18300 12 ...

Страница 57: ...er key to accept the new coefficient or Esc key to leave it unchanged Both keys return to the previous menu allowing other coefficients to be edited Note There is no range checking on coefficients they may be changed to any value 4 5 7 4 Probe id ChA ITS90 Smart 12 02 03 Esc 1 2 3 4 5 6 7 8 9 0 3 Send to comms Ap 3 9080 x 10 03 ChA ITS90 Smart 12 02 03 Esc 1 2 3 4 5 6 7 8 9 0 3 Send to comms Pb id...

Страница 58: ...s assigned to a channel Once assigned the channel will use the programmed values every time that channel is selected Note that if a probe is already assigned then this menu will instead read Unasgn from Chxx where the currently assigned channel xx is indicated Selecting the Assign to chan menu will show a screen similar to the following one Use the editor to set the required channel and then use t...

Страница 59: ...or the Esc key to leave the current state unchanged Finally use the Esc soft key to return to Measurement mode 4 5 7 7 Set Probe Tmax Probes may have a maximum temperature set for them positive or negative When the probe is assigned to a channel the probe s temperature is checked against the set maximum and a range error issued if the maximum temperature is exceed The temperature will still be dis...

Страница 60: ...e s temperature is checked against the set minimum and a range error issued if the minimum temperature is exceed The temperature will still be displayed it does not matter what the units are but if the buzzer is enabled a short repetitive beep will be heard and the under range icon will flash on the line below the result23 and the panel LED will flash red Se the Set Probe Tmax menu since data entr...

Страница 61: ... the channel assignment are copied to the probe number selected 4 5 8 Set group conversion For convenience all probes in a group may be set to the same conversion method This menu will prompt for the group number then the conversion method and then ask for confirmation All probes in the group will be set to the use the default conversion coefficients for the method The channel assignments and prob...

Страница 62: ...ibrated24 Additionally the CTR5000 needs other points to ensure that the CTR5000 linearity specification is met across its full range25 The user calibration values are 0 Ω and 100 Ω A four terminal zero ohm resistor is required together with a traceable calibrated resistor for the 100 ohm point26 The calibration procedure is simple and is partially automated The procedure is described in the follo...

Страница 63: ...e 100 Ω resistor from its calibration certificate27 Menu item 3 has been selected 100 Ω reference resistor to show the reference value setting 27 The values of the external calibrated reference resistors must be accurate to at least 4 decimal places to ensure the CTR5000 is calibrated correctly Less accurate resistors may be used but the instrument accuracy will suffer accordingly ChA ITS90 Pb09 1...

Страница 64: ...icate see previous section Menu item 2 has been selected 100 Ω calibration to illustrate the procedure Note Allow at least 40 minutes with power applied before recalibration Follow the on screen instructions noting that the relevant external resistor must be connected to channel A Use the enter key to accept this step and move on or press the Esc key twice to abort the procedure28 Using the enter ...

Страница 65: ...ce resistor value has been checked its value will be averaged note that the average measurement is performed twice On completion the screen will show 1 2 3 4 5 6 7 8 9 0 Add 100R ref to ChA 100R Calibration Press enter when ready Measuring Flashing LED slow 1 2 3 4 5 6 7 8 9 0 Add 100R ref to ChA 100R Calibration Press enter when ready Measuring Averaging value Flashing LED slow ...

Страница 66: ...bration values 4 6 1 3 Automatic instrument calibration A CTS5000 switchbox is required with a set of calibrated resistors Once started the calibration sequence is fully automated Instrument calibration should be carried out yearly by the supplier or agent This menu item is password protected 1 2 3 4 5 6 7 8 9 0 Add 100R ref to ChA 100R Calibration Press enter when ready Measuring Averaging value ...

Страница 67: ...ll Smart probes This is indicated on the main screen by a crossed out s Once disabled the Smart probe menu will change to show just 1 Enable SMPs Select this to re enable Smart probes once disabled Smart probes must be re enabled to use them again ChB ITS90 Pb32 12 02 03 Esc PgDn 1 2 3 4 5 6 7 8 9 0 1 Disable 2 Review probe 3 Edit probe 4 Reset defaults 041 132 ChA ITS90 Pb09 12 02 03 Esc Menu Ch ...

Страница 68: ...ected to the current channel29 A detailed description for the Smart probe in the F200 User s manual on the CD provided Editing is similar to other menus 29 A message showing No Smart probe Chnn will be briefly displayed if the current channel does not have a Smart probe ChA ITS90 Pb09 12 02 03 Esc PgDn 1 2 3 4 5 6 7 8 9 0 1 Lock 2 Serial no 3 Cal date 4 Next cal 5 Source PgUp 6 Coeffs 7 Convert ty...

Страница 69: ...space limitation on the LCD the CTR5000 can only display 10 characters Although only numerical values can be entered from the editor alpha numeric characters can be displayed and overwritten The data comms N command can be used to enter any arbitrary string 4 6 2 1 Reset defaults menu Use this menu to reset all the Smart probe data fields to their default values for the CTR5000 Select the menu and...

Страница 70: ...report to a data port Report all 72 probes 4 Instrument View or send instrument details to a data port 5 Smart probe Send Smart probe report to a data port Only available when Smart probe connected Once one of these menus is selected various options for the report destinations are displayed the Instrument menu is slightly different since the report can be viewed on the LCD An example for the Chann...

Страница 71: ...ey message is displayed whilst it collects information The data are sent to the specified data port This can take several seconds for a full Probe report A progress bar is shown on the bottom line of the LCD while all the data are transmitted for example 30 The exact time depends on the number of channels the CTR5000 has ChA ITS90 Smart 12 02 03 Esc 1 2 3 4 5 6 7 8 9 0 3 Send to comms Send probe d...

Страница 72: ...annels 2 Buzzer enab Buzzer on or off menu Default on 3 Key buz enab Key buzzer on or off menu Default on 4 Standby enab LCD backlight standby menu Default on 5 Data separator Data separator menu Data separator comma default 7 Date format Date format menu dd mm yy or mm dd yy Date format default dd mm yy 7 CTR5000 F250 mode Data collection interval 0 5 s default or 3 0 s The Options menus are desc...

Страница 73: ...llow CTR5000 re calibration Higher security modes can be used to restrict access to various menus Select Security and the display will show Enter the required security code Security mode Security code Off 4300 Low 4301 Medium 4302 The three security modes are31 31 A Secured menu message may be displayed if an attempt is made to use a secured menu ChA ITS90 Smart 12 02 03 Esc Enter code 1 2 3 4 5 6...

Страница 74: ... available except for the Calibration menu Smart probes may be disabled or data may be viewed but not changed Medium As Low security only the following menus are available 1 Utilities 2 Options security menu only 3 Contrast The channel menus Zero Hold and Units options are not available The bottom line of the LCD will display Menus secured Med ...

Страница 75: ...Buzz enab see above 4 6 4 4 Standby enab The CTR5000 can be enabled to enter standby mode as a power saving feature When enabled the instrument will turn the LCD backlight off after 30 minutes after the last key press32 the LED will still be active The instrument will still measure and transmit data but the LCD backlight intensity is turned off to save power Once the CTR5000 is in standby mode any...

Страница 76: ... key to leave the current separator unchanged 4 6 4 6 Date format The CTR5000 can display dates in the default format dd mm yy or the alternative format mm dd yy Selecting this menu will display Select the date format and then use the enter key to accept this or the Esc key to leave the current format unchanged ChB ITS90 Pb32 12 02 03 Esc PgDn 1 2 3 4 5 6 7 8 9 0 1 dd mm yy 2 mm dd yy ChB ITS90 Pb...

Страница 77: ...ode 34 using this menu Select the required mode then use the enter key to accept this or the Esc key to leave the current mode unchanged 34 The six data points are averaged Because of the superior noise performance of the CTR5000 this is unlikely to give any real advantage but might be useful in a noisy environment or when long cables are used ChB ITS90 Pb32 12 02 03 Esc PgDn 1 2 3 4 5 6 7 8 9 0 1...

Страница 78: ... on which comms options are fitted 4 6 5 1 Talk on and Talk off The CTR5000 can be set to transmit the result every time a new one is available Talk on Set the talk status as required Note Talk on will changed to Talk off if the data comms interface detects any activity 4 6 5 2 View status The comms status will be displayed on the screen when this menu item is selected ChA ITS90 Pb09 12 02 03 Esc ...

Страница 79: ...erred to The options are described below RS232 options Description Notes 1 Reset defaults Resets CTR5000 defaults Immediately resets to F250 defaults 2 Baud rate 19200 Select baud rate 1200 2400 4800 9600 or 19200 default 3 CTS RTS On Handshaking on or off Toggles On default or Off 4 Data length Data length 7 bits or 8 bits default 5 Stop bit Number of stop bits 1 bit or 2 bits default 6 Parity Pa...

Страница 80: ...EEE 3 may be changed by selecting this menu Use the editor to set the address and then the enter key to accept the value or the Esc key to leave the address unchanged The default setting is 3 Any address in the range 0 to 31 may be used ChA ITS90 Smart 12 02 03 Esc Address 1 2 3 4 5 6 7 8 9 0 3 Send to comms IEEE 03 ...

Страница 81: ...his or the Esc key to return Selecting 8 Set time will show Use the editor to set the time the colon symbols will be skipped and then use the enter key to accept the value or the Esc key to leave the time unchanged Date entry is similar 35 The real time clock uses a small replaceable internal lithium battery that will last for many years ChB ITS90 Pb32 12 02 03 Esc Help 1 2 3 4 5 6 7 8 9 0 1 Set t...

Страница 82: ...ing to measurement mode by pressing the enter key or or press the Esc key to exit without changing the current setting Alternatively type the required value on the numeric keypad Note The screen will automatically revert to Measurement mode if no changes are made within 60 seconds 4 6 5 6 Diagnostics Several diagnostics are available for the CTR5000 Their use is specialised Access is restricted an...

Страница 83: ...ions Open Circuit Probe Over Range measurement and Under Range measurement These conditions are shown on the display as Condition Display Open probe Over range R Rmax Over temperature T Tmax Under temperature T Tmin 5 2 Measurement ranges Measurement units PRT Conversion Under range Over range Units Resistance None 420 ohms Temperature Din90 201 851 C F K CvD 201 850 C F K ITS90 201 962 C F K ...

Страница 84: ... may occur with time making periodic re calibration advisable Check calibration daily before and after use with known regularly calibrated reference resistors 6 2 Equipment Temperature controlled environment at 20 C 2 C Stable calibrated 1ppm or better resistors 0Ω 100 Ω 6 3 Calibration procedure See the section on calibration for the full procedure 6 4 Full instrument calibration procedure Specia...

Страница 85: ...CTR5000 Operating Instructions ASL operating instructions model CTR5000 85 This page is intentionally left blank ...

Страница 86: ...20 minutes for the instrument to fully stabilise or longer if switching on from cold Do keep the operating environment stable Do ensure the sensor leads and input connectors are free from dirt as leakage current will affect the results In common with best practice use a known stable calibrated resistor to take a measurement at the start and end of the day log the results Do NOT locate the instrume...

Страница 87: ...sponse before issuing the next one When an additional interface is fitted it is possible to use both simultaneously However unpredictable results may occur depending on the exact timing and order of any input commands 8 2 Interfaces The USB interface is fitted a standard The optional IEEE or RS232 or LAN interfaces while using a completely different means of transporting data work in the same way ...

Страница 88: ...s the instrument s bus address to correspond to the address used by the controller normally a PC The IEEE interface uses an 8 bit data bus and software protocol to transfer data in parallel Each instrument connected to the bus must have a unique address This address may be changed at any time using the Comms menu The CTR5000 slave bus address has a default address of 3 The software driver for the ...

Страница 89: ... enter end of string mode byte 10 ud0 ibwrt Q_ CR required i e x0D 0900 rqs cmpl rqs also count 11 ud0 ibrd enter byte count 6 line added unless you specify the number of byte top read it requests 0900 rqs cmpl Actual flags count 6 30 33 2c 30 31 0d 03 01 CR appears as a dot is 0D hex plus ascii in lower case Note When the IEEE address is changed via the Comms Options menu the instrument must be s...

Страница 90: ...F250 The default parameters are 19200 baud 8 bits hardware handshaking 2 stop bits and no parity Connections are Computer Instrument 9 pin connector Function 9 pin connector 2 Rx 2 3 Tx 3 4 DTR 4 5 GND 5 6 DSR 6 7 RTS 7 8 CTS 8 The instrument has a male gender connector The number of wires required for the connection will depend on the exact RS232 settings Baud rate and other parameters are select...

Страница 91: ...R5000 Operating Instructions ASL operating instructions model CTR5000 91 8 2 4 LAN interface optional The LAN symbol will be permanently displayed when this interface is connected There are no LAN options ...

Страница 92: ...mote mode is cleared when the instrument is switched on It is not necessary to be in remote mode to use any of the PC commands but care must be taken not to inadvertently change settings 8 3 2 Commands and Syntax The following commands can be sent to the instrument all commands are composed of single letters followed by none one or two single digit parameters or letters except the switchbox comman...

Страница 93: ...rst character after the channel character is either a space or a minus sign or a numerical digit when over 1000 Channels prefixes are return as A B C D E F H channel 8 I J K L or M channel 13 Switchbox channels are return as two numerical digits i e 16 17 etc followed by a S Therefore the string length is increased by two characters for a switchbox channel The returned channel is variable in A B m...

Страница 94: ...ful when developing communications Syntax En Parameters n 1 turns echo ON n any other character turns echo OFF Initial State Echo OFF Note the instrument responds to this command with echo on or echo off 8 3 6 command Function Returns error 15 useful when developing communications Syntax Parameters None 8 3 7 I command Function Returns information string about the instrument Manufacturer Model ser...

Страница 95: ...eters 1 or 0 H1 ON H0 OFF Initial State OFF Note Commands requesting a result or channel change will turn hold off 8 3 11 I command Function Set the Probe Id string Syntax Ims s where m 1 and m 72 probe number Parameters Sets the Probe Id to s s 10 characters maximum Note If the first character of the string is numeric then the probe number must be two digits long e g for Probe 2 use I02s s 8 3 12...

Страница 96: ...to A and sends data when reading available a B sets PRT to B and sends data when reading available a C sets PRT to A B and sends data when reading available a D sets PRT alternately to A then B and sends data when reading available a I sets PRT to A and sends data with channel number when reading available a J sets PRT to B and sends data with channel number when reading available a K sets PRT to ...

Страница 97: ...or display n 4 selects D PRT input for display n 5 selects E PRT input for display n 6 selects F PRT input for display n 8 also selects A B differential for display n 9 selects B A differential for display n A selects A B mode for display n B selects A B mode for display n xx where xx 16 upwards switchbox channels selects channel xx Initial State Current channel Note Error 14 will be returned if t...

Страница 98: ...olution Syntax Rn where n 0 1 2 or 3 Parameters n 0 selects 2 decimal places 3 decimal places for ohms n 1 selects 3 decimal places 4 decimal places for ohms n 2 selects 1 decimal places 2 decimal places for ohms n 3 selects 0 decimal places 1 decimal places for ohms n 4 selects 0 decimal places for ohms Initial State Current resolution 8 3 18 S command Function Remote control of the SB500 8 SB500...

Страница 99: ...ms Syntax Un where n 0 1 2 or 3 Parameters n 0 selects C n 1 selects K n 2 selects F n 3 selects W ohms Initial State Current units Note when units are set to W ohms data readings are returned followed by the letter R Note E5 is returned when A B or A B modes are selected 8 3 21 Z command Function Sets present reading to zero or clears zero setting if already set Syntax Z Parameters None Initial S...

Страница 100: ...CTR5000 Operating Instructions 100 ASL operating instructions model CTR5000 Note Commands when valid that disable Hold are P A M T D and U ...

Страница 101: ...32 error Illegal argument sent E6 RAM failure E7 Not used E8 Unable to track temperature change or change too large E9 Not used E10 Not used E11 Not used E12 Unable to communicate while logging E13 Remote enable is OFF communications disabled E14 Channel not available E15 Locked out When in remote mode for F250 compatibility the error codes are Error code Meaning Cause E1 Balance error no PRT PRT ...

Страница 102: ...CTR5000 Operating Instructions 102 ASL operating instructions model CTR5000 This page is intentionally left blank ...

Страница 103: ...isplay resolution 1 mK 0 1 m when in resistance mode Accuracy resistance 4m 20 C 5 C Accuracy temperature 10mK 20 C 5 C User selectable measurement display ºC ºF K or ohms PRT current 1 mA constant current Internal reference resistor 100 Internal reference resistors thermal stability 0 1ppm C Internal reference resistors accuracy 0 01 uncalibrated Input channels 2 4 or 6 optionally Input connectio...

Страница 104: ... Storage temperature range 20ºC to 50ºC Service temperature range 15ºC to 35ºC Specified operating temperature range 15ºC to 25ºC Operating relative humidity conditions 80 RH non condensing 10 5 Dimensions and weight Dimensions 80 x 260 x 240 h x w x d Weight 2 6 kg Operating relative humidity conditions 80 RH non condensing 10 6 Approvals The CTR5000 has been designed to comply with current stand...

Страница 105: ...CTR5000 Operating Instructions ASL operating instructions model CTR5000 105 This page is intentionally left blank ...

Страница 106: ...nter the instrument Warning Never use alcohol or thinners as these will damage the instrument Never use a hard or abrasive cloth or brush Always disconnect from the mains supply before cleaning Warning Regularly inspect the mains cable and plug for damage 11 2 Maintenance Keep the instrument and its leads clean with occasional calibration checks In particular the connectors to input terminals shou...

Страница 107: ...CTR5000 Operating Instructions ASL operating instructions model CTR5000 107 This page is intentionally left blank ...

Страница 108: ...trument has not been damaged in use or tampered with This warranty does not include costs incurred in returning the equipment to the factory for repair 12 1 Technical Support For all technical support repair warranty and service inquiries please contact Technical Services WIKA UK 4 Gatton Park Business Centre Wells Place Merstham Redhill RH1 3LG ENGLAND United Kingdom Telephone 44 0 1737 644 008 F...

Страница 109: ...a or is the temperature coefficient or temperature sensitivity of the platinum wire used in PRTs In general the higher the alpha value the better the PRT thermometer measurement reproducibility stability and performance vi Abbreviations for platinum resistance thermometers include PRT Platinum Resistance Thermometer Pt100 PRT with nominally 100 resistance at 0 C RTD Resistance Temperature Device v...

Страница 110: ...any problem or loss resulting from the procedure 14 3 Firmware update procedure Obtain a copy of the latest firmware from the ASL website www aslltd co uk and copy the file into the directory indicated by the instructions on the website Run the program CDM_Setup exe from the directory D Downloader replace the D with the name of your CD device if necessary This will install the USB drivers You will...

Страница 111: ...he ASL downloader icon to run the downloader program Select the CTR5000 Instrument option Click on the Help button Select the CTR5000 option and choose Select This will display a form with specific instructions for the download process Read and follow the instructions provided to update the instrument s firmware The whole process will take about 15 minutes ...

Страница 112: ...f t 0 C are defined in IEC751 for standard PRTs However the coefficients must be measured individually by regression for a particular PRT when greater accuracy is required An alternative and easier method exists via the Callendar van Dusen CvD equation based on measurement of four accurately known temperatures The CTR5000 allows these coefficients to be entered for each probe used The resistance t...

Страница 113: ... instruments and equipment needed to implement the ITS 90 scale in calibration laboratories will be substantially the same Particular features are ITS 90 specifies the use of the PRT up to the freezing point of silver 961 78 C The platinum 10 rhodium platinum thermocouple is no longer specified for use in the scale though it and other noble metal thermocouples will continue to be used as secondary...

Страница 114: ...e ITS 90 scale which may be measured by PRTs extends from 83 8058 K 189 3442 C to 961 78 C The actual range of temperatures which may be measured depends on the type and range of the PRT used The ITS 90 scale requires the entry of 6 constants into the CTR5000 before the instrument can accurately convert resistance to temperature for a particular PRT The constants are conventionally called R0 01 Ap...

Страница 115: ... 1830 x 10 12 The CTR5000 will provide accurate resistance to temperature conversion based on these values when DIN90 conversion is selected for a probe 17 2 DIN 43760 1980 IEC 751 The DIN standard uses defined values for the conversion of resistance to temperature using the Callendar van Dusen equation No data entry for the probe is required since the coefficients are predefined The DIN coefficie...

Страница 116: ...ctuations In addition the AC Bridge technique used achieves superior stability performance over DC Bridges by eliminating all other sources of thermally generated EMF s voltages and sources of drift The internal reference resistor must have a known calibrated value for an accurate determination of the thermometer resistance Rt Although the principle of measuring the ratio of two resistors see intr...

Страница 117: ...form a series of ratio dividers that can be individually switched in and out by the balancing circuit The bridge works by balancing the inductive dividers using the phase difference detector so that the ratio of currents in the two series resistors is precisely known and equal to their ratio Since the balance point depends only on the ratio of the transformer turns to the unknown resistance the me...

Страница 118: ...x 851 0 Tmin 201 0 Units ohms Ref R 100 Channel 02 Type Internal B Conversion DIN90 Probe Undefined Passive probe DIN90 Tmax 851 0 Tmin 201 0 Units None Set Ref R 100 Channel 03 Type Internal C Conversion DIN90 Probe Undefined Passive probe DIN90 Tmax 851 0 Tmin 201 0 Units None Set Ref R 100 Channel 16 Type S252 16 Serial number 123 456789 Conversion DIN90 Probe Undefined Passive probe DIN90 Tmax...

Страница 119: ...ned probes report CTR5000 Serial number 123 456789 Recal date 22 02 11 Date 23 01 10 Time 13 34 10 Probe no 41 Probe id Conversion DIN90 Assigned to channel 03 Tmax 323 1 Tmin 200 1 Units None Set R0 100 0000 A 3 90830x10 03 B 5 77500x10 07 C 4 18300x10 12 All other probes are unassigned ...

Страница 120: ...0x10 07 C 4 18300x10 12 Probe no 02 Probe id Conversion DIN90 Unassigned Tmax 555 2 Tmin 200 1 Units None Set R0 100 0000 A 3 90830x10 03 B 5 77500x10 07 C 4 18300x10 12 Probe no 41 Probe id Conversion DIN90 Assigned to channel 03 Tmax 123 4 Tmin 20 2 Units None Set R0 100 0000 A 3 90830x10 03 B 5 77500x10 07 C 4 18300x10 12 Probe no 72 Probe id Conversion DIN90 Unassigned Tmax 533 1 Tmin 200 1 Un...

Страница 121: ... 456789 Recal date 22 02 11 Date 23 01 10 Time 13 39 45 S W version V0 1 Date format dd mm yy 100R reference 99 998 200R reference 199 992 400R reference 399 999 Channels available A B C D S252 s present 1 S252 1 S W version 0 00 Channels 16 31 Serial number 123 45678 PCB 123 45678 Built 23 01 10 Used 4 Interfaces USB RS232 ...

Страница 122: ...nnel 01 Version 1 Locked 0 Serial no ABCD Cal date 01 01 10 Next cal date 01 01 11 Cal type 2 ITS90 Probe type 0 PRT Wire type 0 Source ASL CTR5000 R_max 1 R_min 0 R_max since 1 R_min since 0 R_max ever 1 R_min ever 0 Units 1 R Reference R 0 100R T conversion 0 DIN90 R0 01 100 0000 Ap 3 90830e 03 Bp 5 77500e 07 Cp 4 18300e 12 Dp 0 00000e 00 An 0 00000e 00 Bn 0 00000e 00 WT90 0 00000e 00 Cal log co...

Страница 123: ...4 Statistical 35 Display key 34 Display key 34 Display key 35 Display key 36 Disposal information xi E Editor 37 Error codes 101 Example reports 118 119 120 121 122 All probes report 120 Assigned probe report 119 Channel report 118 Instrument report 121 Smart probe report 122 Expansion port 27 F Features 13 Firmware update 110 Front panel 21 Function keys Chan 23 Escape 23 Hold 23 Menu 23 Unit 23 ...

Страница 124: ...wire Passive 26 4 wire Passive 26 4 wire Smart probe 26 Probe menu 51 52 55 56 58 59 60 61 Assign to channel 58 Conversion 55 Edit coefficients 56 Probe selection 52 Review coefficients 56 Set Tmax 59 Set Tmin 60 61 Set units 59 Unassign from channel 58 Probe review and edit 51 54 61 Probe safety information x R Rating plate 27 Remote mode 92 Resistors Rs definition 116 Rt definition 116 Resolutio...

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