DATATRAP V2.0 OWNERS MANUAL Switch - hc
Contents
1. CONSULTATION POSITIVE DEFAULT IN CONTRACT OR NONPERMISSIBLE ACTION ESPECIALLY ALSO CLAIMS FOR INDIRECT AND CONSEQUENTIAL DAMAGES This does not apply inasmuch as there is obligatory liability for damages of privately used property on the basis of the Produkthaftungsgesetz or in cases of deliberate acts of gross negligence or missing warranted properties of the product CONTACT ADDRESS Dipl Ing Christoph Muller hc tronic SIJ Heinrich Mussmann Str 5 52428 J lich Tel 02461 9935 42 Fax 02461 9935 70 Homepage www hc tronic de Email info hc tronic de 382. K TSL250 Masse GND MeGeingang Fig 12 MEASUREMENT OF PRESSURE Pressure sensors with preconditioned signals are available which can directly be connected to the datalogger Fig 13 shows the usage of the barometric pressure sensor MPXS4100 Sensors of this type require an operational current of approximately 2 5 mA and thereby reduce the lifetime of the battery e 5 Volt j Analog Signal Analog Signa _ CH oa e Masse GND Fig 13 5 Pin assignment 50 channels V GND 676543 L ss asf D SS SG SG ee SG RB Dua 2 5V GND16 15 14131211109 Pin assignm o N 0 0 oe PE L ALIQUT channels ent at measurement connector of the DATATRAP Channel 1 0 40 V max Channel 2 0 40 V max Channel 3 0 40 V max Channel 4 4 V max Channel 5 4 V max Channel 6 4 V max Channel 7 4 V max Channel 8 4 V max Ground 10 Ground 11 Ground 12 5 V 50mA max 13 5 V switched on during measurement 50mA max 14 Channel 9 4 V max 15 Channel 10 4 V max 16 Channel 11 4 V max 17 Channel 12 4 V max 18 Channel 13 4 V max 19 Channel 14 4 V max 20 Channel 15 4 V max 21 Channel 16 Counter input Signal gt 1 6V high 40 V max 22 Ground 23 Ground 24 Alarm output Open Drain active low 10mA high 5V 2mA 25 Referenz 2 5 V 20mV 1 mA max 1KOhm in series 6 Alarm Control Output DATATRAP V2 0 has a digital outp
3. increased power consumption must be taken into account particularly at sampling rates below 1 s 21 11 Recording timer The built in TIMER offers another possibility of controlled recording Here one may define a daily time for starting and stopping the measurement or the time at a certain date When a daily timing is chosen measurements are taken daily within the same time frame When you choose the option of daily Timer and SMS it is possible to transfer the last set of data by SMS This however requires the use of a GSM modem connected to the DATATRAP which is capable of sending SMS e g Siemens TC35 In the menu the telephone numbers of the recipient and of the provider SMS service can be defined Furthermore a SMS heading can be written including 32 characters If the service SMS to EMAIL is used the email address of the recipient must be entered When entering the address the specifications of the provider must be followed Often the symbol must be replaced for instance by an asterisk blank space must follow the address Entering the text is facilitated by a connection to the DATATRAP using a terminal program and going in the SETUP menu to the item TIMER SETUP A SMS message contains not more than 160 characters Correspondingly a set of data is subdivided into many SMS This can become quite expensive Therefore this possibility is feasible especially for large sample time intervals with mean values of large
4. tronic hc tronic DATATRAP V2 0 The mobile datalogger 0 40 V 4 20 mA 0 4 V Typ K 50 350 C 0 400 mV 50 1200 C 0 32 kHz 5V Switch OWNERS MANUAL CONTENTS ae eo o ore E wech sch sch sch sch sesch sesch sch sesch ea o O O N O Getting started BEE 3 OO E E A E rnrTe Tey Ties 4 SOA 6 Connection EE 8 Pimassignmeni ises rn er ee rT 15 Alarm Control Output EE 16 EE ee Te WE 17 Reading out the ASS nd ce re 18 Alarm OO a 20 SOS RO OR a tert renner 21 Recording TRES a 22 DCG DATATRAP Control Lenert ous assises 23 Remote e 27 Using a GSM modem e g TC35T by Siemens 31 Modem power management ss 34 Reserved control characters AAA 35 TOS SSO UMN EE 36 Technicaldata eneee sess aseaveus E 37 Warranty Conditions ces nie 38 1 Getting started To start you have to insert the enclosed rechargeable battery To do this you open the battery compartment on the backside You should only use 9V NiMH accumulators as with an external power supply buffered charging of the battery takes place We do not assume liability if a non rechargeable battery is used Upon attachment of a power source the DATATRAP resumes the configuration retained last Plug for external Plug with sensor inputs power supply S Serial port 9 Volt NIMH Accumulator Jumper temperature span big small Spindle potentiometer thermocouple offset Spindle potentiometer 4 20 mA offse
5. zeichen 200 201 202 203 204 205 206 207 4 208 nou 3 4 5 6 Beschreibung Logger sends the data stored in flash First two blocks show the number of blocks with 264 bytes Maximum number of blocks 2047 The shortened config is inscribed into the logger ram size of the shortened config 21 Byte The complete config is inscribed into the logger flash size of the complete config 264 Byte Logger start The complete config is read from the logger flash size of the complete config 264 Byte Inquire logger status Transfer time of system to the logger Calling up status informations as string Starting the logger with the actual flash config when additionally oszimode data transmission raw Stopping the logger resets also the osziflag Erasing data in the flash progress indicated by 10 free Antwort END or ERROR OK or ERROR END or ERROR OK or ERROR LOGGER ACTIVATED END or ERROR Status as String OK or ERROR END or ERROR LOGGER ACTIVATED LOGGER STOP free GOOD BYE 35 17 Trouble shooting The following may help to solve frequent problems Problem Fluctuating voltage is indicated at times when the instrument is not connected with the measuring equipment or when no voltage is present at the input respectively Comment If the corresponding channel is configur
6. 5V open drain Switched feed in of sensors 5V 50mA max warm up time 5ms Special functions Start by trigger at threshold of preset time 1 60 min Start and stop by timer and optionally daily transmission of the data By SMS or SMS email Alarm function with adjustable hysteresis alarm output and Information by SMS or SMS email Port settings RS232 with 19200 Baud built in modem support for remote polling from modem protocol V 34 GSM modem support and support of SMS function Supply 9V NiMH battery internally trickle charge with external power ca 3mA Voltage of external power supply 6V 24V DC Current consumption 0 2mA display at 5mA high Sampling rates gt 10Hz ca 10 mA Duration of operation approx 4 weeks with built in battery without buffering Power management for TC35 modem through serial interface 500uA Standby Optional solar mini module for unlimited time of measurement Software Operation and data transfer by the convenient DCC DATATRAP CONTROL CENTER min Windows 95 with graphical Presentation of the measured values Or Platform independent Operation with any kind of terminal program CE 37 19 Warranty conditions DATATRAP V2 0 Period of warranty 2 years 1 In case of faults of hc tronic hardware accessories and materials hc tronic offers to the buyer a warranty limited to the period of time indicated above beginning at the date
7. Branching is performed by the right hand button while you can return by pressing the left hand button Here you have to push the ENTER button to make a selection or i confirmation respectively It branches also to the up or down key for adjustment Use the up or down key to choose a value By confirming it with the ENTER button you leave this mode Shows that the internal timer is active When the specified time has KN elapsed the DATATRAP starts or stops the logging or the modem respectively r Flashing indicates that the DATATRAP is in the mode of logging The following chart presents a scheme of the DATATRAP menu showing the possibilities of navigation Menu overview DATATRAP V2 00 MENU NAVIGATION TIME hh mm ss dd MM STATUS XXXXX AT SE TIME REMAINING BATTERY CONDITION SETUP SET TIME SET TIMESTEP SET AVERAGE SETUP CHANNELS CONTROL WATCH CHANNEL TRIGGER ON OFF TIMER ON OFF DATA TRANSFER SETUP MODEM SETUP ALARM SETUP INFO PIN CONFIGURATION 3 Configuration The parameters for the logging of measured signals are selected in the SETUP menu The clock of the system is set in the submenu TIME Move the cursor to the left or right to vary the desired time unit with the up or down key The format of time is displayed as hours minutes seconds days months The new time is stored by pushing the ENTER key To set the interval of measurements you go to the submenu
8. DCC you can determine manage and edit configurations for your DATATRAP logger A configuration comprises settings for the sampling rate average values and channel settings which are determined in the channel settings dialog The information of the configuration is part of the DCC data format trp different DATATRAP configurations can thus be handled in DCC files trp With the function send config E the configuration shown in the DCC can be transferred to the DATATRAP data logger and will be stored there permanently The function load config E calls up the actual configuration stored in the DATATRAP logger and shows it in the DCC The oscilloscope mode DCC allows you to use your DATATRAP data logger as a storage oscilloscope For this purpose you configurate the DATATRAP as you require it and click the Start Oszi Mode button Es On the Oszirange selection table you determine how many measured values are to be presented simultaneously in the graphical window In this mode of operation no values of measurements will be stored in the DATATRAP logger but you can save the recorded values in the DCC by writing it to a file afterwards Tip Use small sampling rates in the Oszimodus mode of operation The log mode In the log mode you can use the DCC to watch the measurements on the screen as they are presently being recorded To start the log mode click the button Start Logmode The DATATRAP data logger is then configurated with the
9. actual configuration and started From now on all values seen in the screen are stored in the logger Note The DCC can be stopped without stopping the recording process of the DATATRAP logger 24 Data transfer The data recorded by the DATATRAP logger in preceding sessions can easily be read with DCC amp state of the datra transfer After the transfer is completed each logging session is presented After you have clicked the Load Data button a progress bar appears which shows the in an individual window Erasing data By clicking the Erase Data button E all data stored in the DATATRAP data logger are irreversibly deleted Note The settings of configurations are not deleted by Erase Data Chart Settings With the chart dialog box you can define the following chart settings General title diagram title shown above the diagram General legend legend to be shown to the right of the diagram General width width of the legend General BgColor background color of the diagram window General Front Color Color of labelling X axis title labeling of the X axis X axis min max range of values on the X axis X axis unit unit of time on the X axis X axis precision number of decimal places behind the comma X axis date time date time format to be used for the X axis Y axis titlle labeling of the Y axis Y axis min max range of values on the Y axis Y axis precision number of decimal places behind the comma Grid show show grid pa
10. and PDU mode Other size 75x64x33 mm Voltage supply 8 30 VDC Current consumption Talk 190 mA Standby 40 mA Power Down 0 8 mA Pin assignment 1 2 3 4 IGT_IN 5 6 Screws for mounting 3 mm 9 pole SUB D plug Status LED FME antenna plug 74 0 31 Before a TC35 module can be connected with the DATATRAP V2 00 the manufacturer s settings of the TC35 module must be changed using any terminal program e g Hyperterminal of a WINDOWS system For this purpose the Hyperterminal must be set as follows Bits per second 9600 Data Bits 8 Parity none Stop Bits sa Protocol none Then the local baud rate must be adjusted on the TC35 module and the PIN number request must be switched off The PIN request of the GSM modem should be switched off because a PIN number cannot be transmitted to the TC35 by the DATATRAP V2 0 This way booting without intervention of the user can be established Adjusting the local baud rate on the TC35 module Command for 19200 Bits s AT IPR 19200 When the TC35 module has received the directions it signals OK and the desired value of the transmission rate is deposited in a non volatile storage Thereby the change of the local baud rate remains active also after operating the On Off switch of the TC35 module Commands for switching off the PIN request One must take care that the correct PIN number is supplied I
11. 60 93 60 41 10 83 90 94 60 44 20 84 00 93 40 41 30 END CH7 C 33 10 33 00 32 80 32 90 33 00 33 20 32 90 CH8 W m2 322 85 336 05 347 60 348 15 359 70 335 50 330 00 28 5 ERASE DATA Deleting data in memory The data of the configuration are conserved The progress is indicated by 10 bars ERASING 540 KB free 6 SETUP Offers possible settings for modem control such as programming the daily time frame for remote access the setting of the time of the system and the manual control of the output signal Furthermore the start of the trigger timer of the logger and the alarm management can be configured The following screenshots show various setup menus DATATRAP HyperTerminal Biel x Datei Bearbeiten Ansicht Anrufen bertragung Del el3 ala DATATRAP REMOTE SETUP 1 SET SYSTEM TIME 21 TRIGGER STATE OFF 3 LOGGER TIMER STATE OFF 4 MODEM STATE ALWAYS ON 5 ALARM MANAGEMENT STATE OFF 6 TOGGLE OUTPUT PIN STATE OFF 7 BACK TO MAIN MENU CHOOSE OPTION gt _ 4 DATATRAP TRIGGER SETUP 1 TRIGGER OFF 2 CHANNEL 1 3 LEVEL 4 00 V 4 TIME ACTIVE 1 min 5 6 7 BACK TO MAIN MENU CHOOSE OPTION gt DATATRAP TIMER SETUP 1 TIMER TYPE OFF 2 SET START TIME 00 00 08 3 SET STOP TIME 80 02 80 4 5 6 7 BACK TO MAIN MENU CHOOSE OPTION gt DATATRAP MODEM TIMER SETUP 1 MODEM TI
12. ER SETUP Otherwise the online option of DCC is also available If the battery charge falls below a certain limit the mode of registration is interrupted until the charge is high enough again to allow safe operation This period of interruption is indicated in the recordings by BATTERY LOW 8 Reading out the data For users of Windows Use the enclosed PC program DATATRAP Control Center DCC which offers a simple and quick way of reading the data out as well as the management of the configuration After installation of the program you have to connect the DATATRAP with the PC using the enclosed null modem cable also AT link Cable Start the DCC via the symbol on your desktop or on the task bar obtained with PROGRAMME Select the correct COM port in the settings and store these changes To establish the connection push the CONNECT button a For registering the data press the button DATEN EINLESEN amp and specify the file where your data should be recorded The values are then presented graphically on the screen For all platforms You can use any terminal program with Windows or on any other platform As an example the use of HyperTerminal for reading out the data is described here as following 1 Start programs accessories HyperTerminal Hypertrm exe 2 Set up new connection Name DATATRAP Connection via COM XX XX depending on the port used 3 Connection settings e baud 19200 bits s e data bits 8 e par
13. MER ON 2 MODEM ALWAYS ON 3 SET DAILY MODEM START TIME 10 04 00 4 SET DAILY MODEM STOP TIME 90 00 00 t5 t6 7 BACK TO MAIN MENU CHOOSE OPTION gt _ 29 DATATRAP ALARM SETUP 1 ALARM TYPE ON 5MS 2 CHANNEL 1 3 LEVEL 0 0 V 4 HYSTERESIS 0 0 V 5 CONDITION LEVEL OVERRUN 6 OUTPUT PIN ON 7 SMS CONFIGURATION 8 BACK TO MAIN MENU CHOOSE OPTION gt G Merbunden 00 16 45 ANSIW 19200 8 N 1 RF 6ROSS NF BuFzeichnen Pruckerecho 2 7 QUIT Terminating the connection The Datatrap sends the modem a string to hang up GOOD BYE ATH 14 Using a GSM modem e g TC35T by Siemens A GSM modem can directly be connected to the serial port of the DATATRAP using a serial cable In the case of the TC35 the energy management of the modem can be controlled by the DATATRAP However you need an additional power supply running the TC35 Normally a 12V lead gel battery providing a few Ah is sufficient Furthermore a GSM antenna with a FME plug and a SIM card with data service contract are necessary Technical data of the TC35 Type Dual band transmission modem for 900 MHz and 1800 MHz Data interface V 24 RS232 9 poles with standard gages Transmission Standard 9600 Bit s CSD 14400 Bit s V 110 Fax SMS SIM card Slot for GSM mini SIM card e g D1 D2 E 02 Transmission power 2 Watt at 900 MHz 1 Watt at 1800 MHz on FME plug Set of command AT C standard SMS text
14. NiMH you should reload the basic configuration To do this you have to disconnect the batteries and external power supply and start again with the external power supply Thereby you have to keep the ENTER button pressed until DEFAULT CONFIGURATION appears in the display In this process your data will be conserved The configuration data of the measurements recorded last can be restored by reading them from the DCC and by overwriting the basic configuration The basic configuration for all channels is e STATUS OFF e UNIT mV e SCALE 1 00 e OFFSET 0 0 TYPE 0 4 V e TIMESTEP 1s e AVERAGE OUT OF 1 SAMPLE 4 Connection of sensors Using the software each channel can be defined as an input for 0 4V 0 400V 4 20mA or for thermocouples of the type K NiCr Ni The channels 1 2 and 3 are provided only for voltages of 0 40V All channels are unipolar inputs which means that the potentials of all signals relate to the common ground The following figures show possible connections for various types of signals and sensors If the type of measurement remains the same the sensors should be soldered permanently to the sensor jack If one wants to expand flexibility an additional board with terminal strips allowing simple conditioning of the signal is available In order to reduce the power consumption sensors requiring a 5V supply can be connected to a pin of the input jack that switches to 5V at the moment of measurement This funct
15. SET TIMESTEP Use again the up or down key to vary the value The maximum sample interval is 60 min the smallest interval 50 milliseconds The lowermost line of the display shows the time that is available for data logging at the present settings and storage capacity If intervals shorter than 200 ms are chosen the ONLINE function for transferring actual measurements in the ASCII format is automatically switched off In the cases of intervals smaller than 100 ms and activation of many channels the stand by mode of the DATATRAP may become inactive One may then expect a higher power consumption gt 10 mA and a shorter lifetime of the battery In the menu SET AVERAGE you can choose the number of measurements to be used for the calculation of average values The number can be between 1 and 200 The recorded values are spaced at a time interval resulting from the product of timestep and number of averaged values Thus at an interval of 1 second and an average of 60 values the calculated average is recorded once per minute The more values you use for the calculation of the average the better is the resolution Noise dependent distortions of signals can thus be smoothed out digitally by average formation The 16 channels can be singly activated or deactivated in CHANNEL SETUP To do this you select the channel with the up or down key and activate deactivate it with the ENTER key By pressing the control button on the right every channel can be config
16. _ 80 85 2 16 104 70 45 90 EXT 100 60 49 42 6 12 40 46 114 90 117 60 zs 341 88 Unit mv mY v a C g SE S pa pa pa SE C C Wim Wim Ready Offline Ready Building up a connection The DATATRAP Control Center communicates with the DATATRAP logger by its RS232 interface DCC can communicate with the DATATRAP that is connected directly with the PC via a null modem cable as well as with the DATATRAP connected by a GSM Modem In order to make a connection with the DATATRAP you choose the type of connection in the communication settings For modem connections to the data logger you can use those installed in the operating system For direct connections by a null modem cable you select any of the COM ports installed in your system Note ISDN adapters installed as modems with CAPI drivers are not supported by the DCC Note To filesave the settings permanently please go to Save Settings in the settings menu Finally you click the Connect button a DCC now establishes a connection with the DATATRAP logger and presents the actual configuration of the DATATRAP As soon as logging in is completed the indication Connected to DATATRAP appears in the status string and the functions of the attached DATATRAP are accessible 23 Note If during logging in the DATATRAP data logger is in the logging mode the values of measurements recorded by the logger are transferred also to DCC starting at the time of logging in Configuration With the
17. ated as a 0 400mV input these fluctuations are normal The amplifier input floats as long as there is no signal If any voltage is applied this error should not occur Problem During voltage application by means of the provided mains adapter the voltage measured varies between 0 and 15 mV also the voltages present at the input Comment Problems can occur for measurements that are not potential free Potentials can arise in the case of measurements on mains operated equipment A problem in this respect may be the provided switching power supply It has the advantage of low power consumption and compact dimensions but it has no galvanic separation between the primary and secondary parts Therefore for measurements on equipment that is not potential free the stray effects can be minimized by the use of a wall power supply which uses a transformer 12V 100mA Fluctuations of maximally 2 steps are still permissible and correspond to the specifications of the internal A D converter Noise can be reduced by the averaging function while logging Problem The temperature measured with the thermal element fluctuates 0 3 TC Comment Thermal elements produce very low voltages in the range of millivolts This increases the sensitivity to electromagnetic noise pick up This effect occurs particularly in the vicinity of strong sources of interference In this case one should use shielded thermocouples and short cable length To avoid errors condu
18. cting contacts of the wires to metals should be prevented especially when using many thermal elements at the same object Problem Appearance of strange letters on the display Comment This effect can appear when the configuration of the logger has been destroyed This can happen for instance when the flash storage is erased at too low supply voltage Load the basic configuration Take out the battery and attach the instrument to the wall power supply while you keep the ENTER button pressed The display then shows DEFAULT CONFIGURATION Tip Please use only NiMH 9V batteries since their state of charge is recognized by the DATATRAP 36 18 Technical data Storage Flash Eprom for 270 000 values of measurement conserves the data also in case of power failure Samplerate 50 ms 60 min average formation from max 200 values Error lt 1 ms interval AD converter Resolution 12 bit Relative error 1 LSB Differential Nonlinearity 1 LSB Offset error 3 LSB Gain error 3 LSB Inputs 16 configurable channels Thermocouple Type K NiCrNi 50 C 350 C 50 C 1200 C 0 409 6 mV 4 20 mA 0 4 096 V Channel 1 3 0 40 96 V Channel 16 0 32 768 kHz or 0 32768 impulses lt 2 0V low gt 2 5V high min duration of impulse 1 ms Outputs Switch output 5V manually by remote control or alarm function Active 15 mA vs Mass inactive 2mA
19. e must follow the address Entering the text is 20 facilitated by establishing a connection to the DATATRAP with a terminal program going to the submenu ALARM MANAGEMENT in the SETUP MENU The text of the message is followed by details concerning the state of the alarm time of day and date when the alarm was triggered and the alarm value measured Subject Mail via GSM SMS From 491705369524 lt 491705369524 sms debitel com gt Date 25 09 2004 11 58 To chris hc tronic de uebertemperatur in M L Str 12 ALARM EVENT OCCURED 00 09 57 01 01 LEVEL OF CH 4 MOUNTED TO 19 70 Diese Nachricht wurde direkt von einem debitel Mobiltelefon an Sie versandt Bitte entschuldigen Sie eventuellen Telegrammstil Sie k nnen auf diese Nachricht auch direkt per E Mail antworten Example of an Alarm SMS 10 Trigger function In the menu TRIGGER an automatic start of the logger can be defined when a certain threshold value is exceeded Here you can select the channel the starting value and the desired duration of recording in a range of 1 minute up to 160 hours If the threshold value is exceeded the DATATRAP reacts within the timeframe of the sample rate and starts to record for the desired duration of recording If the threshold value is still exceeded after the recording period has elapsed the duration of measurements is prolonged automatically for another period As a continuous supervision of the trigger channel is necessary
20. e pin is reset only after exceeding or falling below respectively the threshold value adding or subtracting respectively the value of hysteresis Synchronously with setting the state of alarm there is the option of sending an SMS message see below The type of the output can be defined with the states On Off or Inverted According to 6 1 and 6 2 it is possible for the user at any time to control the output pin of the data logger by the internal menu a terminal program or by DCC As far as access to external hardware is concerned you are referred to chapter 6 Beispiel der Alarmfunktion Alarmlevel 110 Hysterese 20 Bedingung gt Ausgang on SMS aktiv 140 4 120 ALARMLEVEL A EE TT HYSTERE 100 SE SMS MESSAGE SMS MESSAGE Messwert AUSGANGSSIGNAL SMS message The option Alarm and SMS allows to transfer an alarm message by SMS This requires however that you have a GSM modem capable for SMS as TC35 Siemens at the serial interface of the DATATRAP The telephone numbers of the recipient and of the provider s SMS service can be listed in the menu Furthermore an alarm message can be written with 48 letters If the service SMS to EMAIL is used the email address of the recipient must be defined preceding the text of the message When you enter the address follow the directions of the provider The symbol can often be replaced for example by an asterisk A blank spac
21. e temperature as the instrument The instrument should therefore not be exposed to direct sunlight or to great changes in temperature You thus avoid errors of measurement since the thermo voltage arising at the solder joints must be balanced by a temperature sensor located in the instrument To be able to measure temperatures below freezing point the sensor system is provided with a voltage offset shifting the origin in positive direction The hardware offset can be varied with an internal spindle potentiometer see Fig 1 This offset must be balanced by a digital OFFSET in order to achieve the correct reading in the menu CHANNEL SETUP Temperatures below zero are then displayed with a minus symbol The offset is most simply adjusted in AUTO mode To do this you dip the sensor into ice water 0 C and push the right hand arrow button when in offset configuration mode The temperature display then jumps to zero The SCALE factor 0 1 should normally not be changed because the internal amplifier is laser calibrated It is possible to use cables longer than 10 m However this may increase disturbances depending on the surroundings Shielding with mass contact may then help Since the cable represents a resistor long cables may eventually require adaptation of the SCALE factor 5 Volt e T D ES D 2 o Thermoelement Typ K Fig 6 LINEARISATION OF THERMOCOUPLES The linearisation has to be done by processing the data in a
22. ei SETUP i7 QUIT CHOOSE OPTION gt 2 LOGGER ACTIVATED v Verbunden 00 00 42 ANS 19200 8 N 1 RF GROSS NF AuFzeichnen Druckerecho Z 27 By entering the ASCll characters 1 to 7 you can remotely control the main functions of the DATATRAP This operation is independent of the operatplatform since it is possible with any kind of terminal program In the following the functions are shown in detail 1 STATUS The main information concerning the status of the logger is given Remaining shows the time available for recording with present settings The display can look as follows TIME 00 18 13 21 06 STATUS LOGGING REMAINING 15 days 18h BATTERY 100 2 START LOGGER Possible responses are LOGGER ACTIVATE D STOP LOGGER FIRST MEMORY FULL 3 STOP LOGGER Possible responses are LOGGER STOPPED NOT ACTIVE 4 TRANSFER DATA Transfer of all data in the ASCII mode Transfer is stopped by pressing the ESCAPE key The display of each data file shows in the beginning the time of start and the configuration data Datatrap Version 1 60 File 1 Start Time 09 36 56 07 08 Samplerate 1 sec Average out of 30 samples Timeinterval 30 sec Channel Unit Scale Offset 4 C 0 10 12 00 5 C 0 10 12 00 6 C 0 10 12 00 7 C 0 10 12 00 8 W m2 0 55 0 0 CH4 C CH5 C CH6 C 84 60 94 00 41 70 84 20 93 80 41 60 84 20 93 70 41 30 84 10 93 70 41 10 84
23. em TC35 can at preset times of day be powered down via the serial interface cable in order to save power The DATATRAP V2 0 activates and initializes the modem at the set starting time and switches into the sleeping mode at the time determined for stop This way only 0 5 mA are consumed instead of the 40 mA necessary in the standby mode When you start after a complete loss of power the modem is shifted into the permanent standby mode This way it is possible for the user to get the control at any time as the timer of the datalogger may not anymore work with the proper time The time window may be set directly in the menu of the DATATRAP under DATA TRANSFER SETUP MODEM SETUP SET START STOP TIME The setting may as well be accomplished by remote control from the DCC DATATRAP Control Center with LOGGER SET MODEM TIMES or by any terminal program in the DATATRAP ASCII menu SETUP MODEM gt Attention The modem timer and the recording timer cannot be used simultaneously The timer activated last inactivates the other 34 16 Reserved control characters Control characters used by the DCC Datatrap Control Center and remote control Befehl Load data binary continue 208 Write Config into Ram Write Config into Flash Read Config from Flash View Status Write system time Oszi On Oszi Off View Status Start Logger Stop Logger Load data Ascii Erase data Quit Steuer
24. ess than 2 0V as LOW The duration of the impulse must at least be 1 microsecond to be recognized reliably A signal voltage of 24 V at the input should not be exceeded The counter counts up from 0 to 32 768 Above this number it starts again at zero The counter is reset at the start of recording The measurement of frequency can deal with frequencies in the range of 0 to 32 768 kHz At higher frequencies the internal counter starts again at zero The resolution of measurements of low frequencies is improved by measuring over longer intervals Instead of expressing second based measurements in Hertz the display can also be defined in terms of pulses per time interval chosen by the user 1 t or of period length in ms MEASUREMENT OF LIGHT INTENSITY Light intensity can be quite accurately measured by the short circuit current of a photodiode But one has to keep in mind that the photo diode covers only a small part of the spectrum A sensor calibrated for sunlight can thus yield false values for artificial light because of the different spectrum A further factor of disturbance is the temperature of the diode since the short circuit current increases with temperature Use the range of 0 400 mV for measurements in the circuit shown in Fig 11 Ready made sensors such as TSL250 are already available 5 Volt EPYY34 Wi Se tO wem e I Masse GND MeGeingang Fig 11 MPX54100 5 Volt ers Sj m e Analog Signal
25. f a wrong PIN is entered into the TC35 more than three times in a series the SIM card is blocked absolutely Entry of the PIN number AT CPIN XXXX XXXX are the 4 digits of the SIM card It can take several seconds after entering the PIN number until the TC35 responds with OK It is only after a positive response that the next command can be transmitted Switching off the PIN request AT CLCK SC 0 XXXX XXXX are the 4 digits of the PIN of the SIM card As soon as the TC35 has responded to these directions with OK no PIN entry is necessary anymore for connecting to the D1 net 32 Rate of transmission in the D1 net For data transmission in the D1 net there are at present 9600 Bit s available for standard communication For this reason only the baud rate 9600 was tested with the TC35 module and provided for use Connection of the TC35T to an 8 24V power supply The TC35 module has a 6 pole Western socket for attachment to a power supply A 6 6 RJ2 plug must be used Pin assignment of the Western connector Westernbuchse TC35T Modul Connection to an antenna The TC35 module can be directly attached to the antenna cable To prevent any influence on the sensitive measurement inputs of the DATATRAP the antenna should be positioned at a great distance and or should be well shielded 33 15 Modem power management For measurements in places where there is no external power supply the GSM mod
26. ions with a sensor heat up time of a few milliseconds ATTENTION Channels 1 to 3 must not be exposed directly to more than 41 V channels 4 to 15 not to more than 5 V Reversed polarity of voltages of more than 0 5 V between channel and ground can destroy the input multiplexer VOLTAGE MEASUREMENT Without any further adaptation voltages of 0 409 6 mV or 0 4 096 V can be measured with a resolution of 0 1 mV or 1 mV respectively as shown in Fig 2 Channels 1 3 are internally equipped with a voltage divider of 1 10 so the input voltage can be from 0 40 96V and have a resolution of 10mV D Z E E D Gi o Fig 2 If higher voltages are to be measured a voltage divider must be added as shown in Fig 3 The resistance values should not be chosen too high since otherwise the internal resistance of the instrument 1 MQ would be predominant MeGeingang Masse GND U2 U1 x R2 R1 R2 Fig 3 MEASUREMENT OF CURRENT In the case of current measurements the decline of voltage over a resistor with low resistance a shunt is measured Fig 4 The shunt is positioned in series with the sensor or consumer respectively You should use the mode of 0 400mV so that a small shunt can be chosen The smaller the shunt the less it is heated up and the more constant the conditions temperature drift 5 Volt MeGeingang R shunt U max Fig 4 MEASUREMENT OF RESISTANCE Seve
27. ity none e stop bits 1 e protocol none 4 Select TRANSFER in the menu bar e record text e name file e g logfile _1 txt e start In the menu of the instrument go to DATA SEND TO PC your data are thereby transferred The file is saved automatically when you click STOP READING The data are given in the form of a text The header is followed by the columns of measured values In front of every line you find the time of recording The columns are separated by separation symbols which can be specified in the instrument menu DATA TRANSFER SETUP gt DELIMITER Possible separation symbols are blank space comma semicolon or tabulator 5 Further processing of the data Processing can for example be done by Excel importing there the file as a text file If a comma is used instead of a dot as a decimation sign it can be replaced automatically in an editor program such as Notepad or Word for instance 9 Alarm function With the help of the alarm function of the DATATRAP V2 0 automatic notification of the user and switching for the purpose of control is available Select a channel which will be monitored at time intervals set for logging The maximal reaction time for example at a sampling rate of 1s is correspondingly 1s If the value measured at the channel exceeds or falls below the given threshold value the state of the alarm output pin 24 changes The threshold conditions can be set in the menu The state of th
28. numbers and few channels Typical is the following example WR Start of measurements by the timer at the time 0 00 M recording for instance of temperatures or water levels in hourly intervals e g measurements every minute and saving a mean value from 60 measurements each hour m stop at 23 00 and data transfer by SMS to the email address To be considered A simultaneous use of the modem timer and the recording timer is not possible The timer activated last inactivates the other one 22 12 DCC DATATRAP Control Center DataTrap Control Center Messung_1bis_3 1 trp E Fle Edt view Logger Visualisation Settings Window Help laj x amp A4 gt eluleBlesle er4ts484at alae 299 98 j 224 66 fi r WM E lz s f H 1 3 s LS nr 1 H 1 1642 13 42918 78 84195 42 125472 07 166748 71 208025 36 249302 00 t sec Starttime D October 11 55 23 Samplecount 4214 Status Viewing Ad Samplerate ka I ser x Averagefilter H 60 Updaterate 1 0 min E Chi lee TS a Ce AC oe ae ee Ee State off off active active active active active active active active active off active off active Name U vent Ivent TWT aus Tofen aus Tofen ein P1 Pin P2 Yp P3 Pout TWT ein Tsolar ei Tsolar au I sol glb I sol dif NN oe oe oD Less Lei Leg zeg Lass ez m gt Value _
29. of purchase Within this period a demonstrably defective product will be repaired or exchanged at the expenses of hc tronic Replacements can be new or as good as new 2 hc tronic does not give a guarantee however that this product will function without possible interruptions or errors If hc tronic cannot provide for a replacement within an appropriate period of time according to the warranty conditions the customer is entitled for reimbursement of the purchase price after returning the product 3 The products of hc tronic can contain used parts which are comparable in their capabilities to new parts 4 The warranty is not valid in the case of damages caused a by improper maintenance and service b by use of software interfaces parts or materials from other manufacturers c by modifications done without consent of hc tronic or by incorrect use d by operation of the product under environmental conditions other than those prescribed by hc tronic or e by inappropriate preparation or maintenance of the location 5 CLAIMS AGAINST HC TRONIC EXCEEDING THE WARRANTY DESCRIBED ABOVE ARE EXCLUDED VERBAL OR WRITTEN AGREEMENTS ARE NOT ACKNOWLEDGED WARRANTY CLAIMS ARE LIMITED TO THE PERIOD OF TIME INDICATED ABOVE INASMUCH AS THIS WARRANTY IS LEGALLY PERMITTED Besides the warranty de scribed here the claims mandatory by law are valid 6 CLAIMS AGAINST HC TRONIC AS WELL AS ITS AUXILIARY PERSONNEL ARE EXCLUDED INDEPENDENTLY OF LEGAL GROUNDS E G
30. on with the PC by a null modem cable or by a GSM modem However an easy remote access in the graphic oscilloscope mode and access to the configuration is only achieved by the DATATRAP CONTROL CENTER DCC Port settings RS 232 19200 baud 8 bit 1 stopbit no parity no hardware protocol For the operation of the modem it must be initialized This is carried out on the DATATRAP in the sequence DATA TRANSFER SETUP MODEM SETUP MODEM ON As you leave the menu the initialization strings are sent to the modem If the signals are not recognized be the modem or if there is no modem an error is indicated The initialization is also effected automatically by the application of the supply voltage of the DATATRAP When a call is received by the initialized modem the DATATRAP answers it automatically With the key word CONNECT from the modem an ASCII Operation menu is transferred In the case of direct control through a serial cable the keyword CONNECT can also be entered manually with the help of a terminal program In the ONLINE mode no more operation from the DATATRAP keyboard is possible If you press a key the DATATRAP terminates the connection The following screenshots shows the main menu sent from the DATATRAP DATATRAP HyperTerminal Jl x EE Datei Bearbeiten Ansicht Anrufen bertragung DATATRAP REMOTE CONTROL ll STATUS 2 START LOGGER 3j STOP LOGGER 4 TRANSFER DATA 5j ERASE DATA
31. pleted measurement can be started Be sure that you have sufficient battery and storage capacities During unbuffered operation without external power supply you can check the state of the battery and the remaining time in the menu STATUS You may erase the memory if necessary using in the menu DATA ERASE DATA When the battery is nearly empty the DATATRAP does not allow to erase any data for the sake of safety In the menu CONTROL START NOW logging is started and stopped Alternatively starting or stopping the data recording can also be controlled with the timer or trigger function During the measurement you can observe the remaining time the status and the battery charge in the menu STATUS The actual values of measurement of each channel are displayed in the menu CONTROL WATCH CHANNELS You choose the channel using the up or down key During measurements one cannot change the configuration SETUP or the memory e g by ERASE DATA You are then told PLEASE STOP LOGGER FIRST In the menu CONTROL STOP NOW you can stop measurements immediately or set a time for stopping in the TIMER Up to 1000 data files with varying configurations can be recorded in series In the phase of read out they are transferred to the PC in series If you want to send the data of measurement online to a PC i e during recording via the serial interface in the ASCII format you have to activate the option ONLINE DATA in the menu DATA TRANSF
32. ral sensors show a change of resistance with the change of the physical parameter If a voltage divider is constructed with any one of these sensors according to Fig 5 the voltage can be measured by the data logger Depending on the mode of input U2 should not exceed 409 6 mV or 4 096 V respectively 5 Volt B a e Analog Signal U2 MeGeingang Masse GND U2 5V x R2 R1 R2 Fig 5 TEMPERATURE MEASUREMENT You have various possible choices to measure temperature The most flexible and robust method although not the most accurate one is the use of thermocouples The standard range of measurements with the DATATRAP V2 00 is between 50 C and 350 C with a resolution of 0 1 C The range of measurements can be expanded by setting the internal jumper to high temperature 50 1000 C Thereby the resolution is decreased to 0 33 C For thermocouple measurements type TC NiCrNi must be selected As the characteristic of thermocouples is not perfectly linear the accuracy of measurements with NiCrNi type K elements between 25 C and 100 C is roughly 1 C The measurement can be improved by processing the recorded data according to an algorithm of linearization see below The negative pole of the thermocouple is connected with the sensor input channel on the connector the positive pole with the common ground During operation one should take care that the plug to which the thermocouples are soldered has the sam
33. rements are linearized according to the equation Temperature K 1 A B In R C In R A B and C are constants which are specific for the model of the thermistor and are given by the manufacturer The linearization must be done in the processing of the data by programs of table calculation 5 Volt R 20K e Analog Signal Ka Masse GND Thermistor MeReingang Fig 9 SENSORS WITH 4 20 MA SIGNALS These sensors transmitters which are commonly used in industry give signals which are extremely insensitive to interference and are independent of cable length But these sensors must often be operated with at least 10V so that an additional power source is necessary The signal current is converted to a voltage via a 100 Ohm resistor If the input type chosen on the DATATRAP is 4 20 mA the signal offset can be scaled with an internal spindle potentiometer see Fig 1 At a current of 4 mA the hardware offset is set with the spindle potentiometer in such a way that the reading is 0 At a current of 20 mA the resulting measured value of 4096 mV is displayed at the upper end of the scale 5 Volt Transmitter 4 20 mA Analog Signal R100 Masse GND MeGeingang Fig 10 COUNTER AND FREQUENCY MEASUREMENTS Channel 16 serves to register pulses by counting or in form of a frequency measurement Signals exceeding 2 5V are thereby classified as digital HIGH signals with l
34. t Jumper Firmware update Fig 1 The DATATRAP can also be operated with the included mains adapter If you use other adapters or external batteries such as for example a lead accumulator pay attention to the polarity of the plug plus at the interior minus at the exterior position The attachment to external or internal power supplies is protected from polarity errors however in case of a wrong polarity the power supply is cut off or respectively there is no buffering of the battery Using the enclosed mains supply plug the process of charging the battery takes 24 to 48 hours since it is adjusted to maintain a constant charging rate charging current approx 3 mA If the DATATRAP is not used for a longer period of time the battery should be removed If measurements are taken in large time intervals or if the instrument is kept in the standby mode it can be operated for a period of 3 4 weeks 2 Operation The DATATRAP is operated using the five buttons of the keypad The four outer buttons direct the steps going through the menu The central button in the following called ENTER button serves to confirm a selection If no more button is pushed there is one minute of delay until the DATATRAP automatically switches over into an energy saving mode It will be activated again by pushing any one of the buttons Symbols Cursor indicates possible alternative branching The option is elected by the up or down key
35. table calculation program using the following formula error in the range of 0 C 500 C 0 05 C T a a U a U a U mit U Umess V 247 3 11E 6 For thermocouples of type K following values for constants ay to a are used ao 0 0 a 7 860106E 8 a 2 503131E 10 az 8 315270E 14 a 1 228034E 17 as 9 804036E 22 as 4 413030E 26 az 1 057734E 30 ag 1 052755E 35 Settings in the DATATRAP SCALE 1 OFFSET value of calibration TYPE TYP K NiCrNi These settings yield measurements Umeasure in mV Divide by 1000 to obtain Volts V Please find an implementation under EXCEL on the CD coming with the DATATRAP SEMICONDUCTOR TEMPERATURE SENSORS For the range of measurements between 20 C and 125 C there are several highly accurate integrated temperature sensors which however are more expensive than thermocouples If they are used one has to consider that their signal can be influenced considerably by the length of the cable Figs 7 and 8 demonstrate two examples of their use 5 Volt 7 LM34 Analog Signal wes L ZS a Masse GND Fig 7 5 Volt R 10K e Analog Signal RES e Masse GND MeGeingang Fig 8 THERMISTORS Thermistors can be used in the range of 80 C to 150 C They are not clearly linear but they are not expensive and owing to their signal levels less subject to interferences than thermocouples The measu
36. ttern of the diagram Grid lines X number of grid lines on the X axis Grid lines Y number of grid lines on the Y axis 25 Channel settings On the channel dialog box you can determine the following settings State On Off switch of a channel Name name of channel max 8 characters Colour color for presentation in the diagram Style type of lines for presentation in the diagram Type defines the type of input Unit unit Scale scaling factor Offset offset Concerning the selection of a sensor profile the settings of Unit Type Scale and Offset are defined automatically In DCC you can produce sensor profiles containing the setting dimensions of Unit Type Scale and Offset Once a sensor has been calibrated it can very easily be adopted for a new configuration To establish a new sensor profile click the Save As button and choose a name If you want to use an existing sensor profile you select it in the box for sensor profile selection To change a sensor profile click the Save As button and choose the name of the sensor profile to be altered using the selection box in the Save Sensor profile for dialog To remove a sensor profile completely select the corresponding profile in the selection box of sensor profiles and click the Delete button Note Once sensor profiles have been defined they are available also for further DCC sessions 26 13 Remote control Remote operation of the DATATRAP is possible using a serial connecti
37. ured in a menu After pressing the ENTER key the values can be varied in every line In the first line the unit is chosen and the momentary measured value is shown The value can be adjusted by the scaling factor SCALE and by the OFFSET The result shown Y is calculated from Y OFFSET SCALE X The OFFSET can also be set automatically first you press ENTER so that the OFFSET value can be varied then you press the RIGHT button Now the negation of the input value of the channel is used as OFFSET such that the displayed value is zero The OFFSET is adjusted manually using the up or down key and ENTER for confirmation Equation for sensor calibration Y OFFSET SCALE X applied for temperature measurement with thermocouple Scale 0 1 Offset 20 0 Calculated Value C Measured Value mV The type of input is chosen from TYPE The available modes are 0 4V 0 400V 4 20mA and thermocouple input Consider however that the channels 1 2 and 3 are operated via a voltage divider thereby allowing a range of measurements of 0 40V and so doesn t serve for thermocouples Channel 16 provides an input for frequency measurements and counting Names can be assigned to the channels via DCC Datatrap Control Center they are then shown with the measured values in the logger display and in the data files If the configuration should get lost for instance with low batteries only possible with types of batteries other than
38. ut pin 24 for control of external instruments In the active state the output is connected to ground open drain and can yield a current of up to 15 mA In the inactive state the pin carries 5V and can supply maximally 2 mA There are several possibilities to control the output 1 In the datalogger under the menu section SETUP SETUP CHANNELS OUTPUT PIN ON OFF you have the possibility to alter the state of the output by pressing the enter button 2 In the DCC V2 0 Datatrap Control Center the following button is integrated in the d task bar S In a pressed position it symbolizes the active state 3 Automatic switching for the purpose of control is possible using the alarm function of the Datatrap V2 0 For this purpose a channel is chosen that is monitored at the time interval selected for recording When the measurement at the channel exceeds a given threshold value or falls below it respectively the state of the output changes The state of the pin is reset only when the chosen hysteresis value is exceeded or not reached respectively The type of output can be defined via the states as on off or inverted Following the possibilities described above points 1 and 2 the user can alter the output at any time 5V Relais gt 10 Ohm 5V Pin 12 BC337 npn Schaltausgang Pin 24 Schaltausgang Pin 24 7 Datalogging When the connection and the configuration of the sensors are com
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