Ahlborn ALMEMO 2690-8, Operating Instructions Manual

Page 1: ...____________________________ Operating Instructions Data Logger ALMEMO 2690 8 V1 0 29 06 04 www ahlborn com...

Page 2: ...isolat ZB 2690 UK 10 30V 4 Sleep LED 5 LCD display Status line C Cont measuring point scan ll Measurement Start Stop REC Memory record COM Output of meas values l l Meas start end programmed R01 Alarm...

Page 3: ...pply 15 6 6 Switch On Off Reinitialisation 15 6 7 Data buffering 15 7 CONNECTION OF THE TRANSDUCERS 16 7 1 Transducers 16 7 2 Measuring inputs and Additional Channels 16 7 3 Isolation 17 8 DISPLAY AND...

Page 4: ...nts 36 9 4 9 Volume Flow Measurement 37 9 5 Display of Several Measuring Points 38 9 5 1 Menu Multi Channel Display and Bar chart 38 9 5 2 Differential Measurement 38 9 5 3 Menu List of Measuring Poin...

Page 5: ...g Output Start and End 61 10 4 5 Output Function 61 10 4 6 Reference Channel 1 62 10 4 7 Reference Channel 2 or Multiplexer 62 10 4 8 Element Flags 62 10 5 Device Configuration 63 10 5 1 Device Design...

Page 6: ...vice has to pass through several quality tests before leaving the works For a perfect function a guarantee of two years from the delivery date is granted Before sending back the device please pay atte...

Page 7: ...uited or thrown into the fire Batteries accumulators are special refuse and must not be thrown in the dustbin 3 4 Special Operating Instructions When the device is brought from cold surroundings into...

Page 8: ...anual section 5 2 The entire ALMEMO networking system manual section 5 3 All functions and their control via the interface manual section 6 A complete interface command list with all print outputs man...

Page 9: ...ion Channels Maximum minimum average values and differences of certain measuring junctions can be programmed as function channels also in device internal channels and can be processed and printed like...

Page 10: ...and output to the display or if availa ble to the analog output To increase the response speed at many measuring points the conversion rate can be increased and set to continuous scan Measured Values...

Page 11: ...Cycle is programmable between 1 s and 59 h 59 min and 59 s and provi des a cyclic output of measured values to the interfaces or memories and also provides a cyclic averaging Print Cycle Factor If nec...

Page 12: ...functions and stored measured values and programmed parameters can be provided as output to any peripheral equipment Various in terface cables can be used to provide a RS232 RS422 Centronics or Ethern...

Page 13: ...utput storage s 9 3 1 MANU or F2 Cyclic measurement Select Cycle Timer PROG Enter cycle hh mm ss s 8 5 Cycle Timer 00 05 00Sn Output format list columns n table t FORM or F3 Stop programming ESC or F4...

Page 14: ...ver measuring data and time will be maintained s 6 7 To change the batteries the sensors must be taken off the rubber protection 7 be removed and the battery cover 8 at the back of the device has to b...

Page 15: ...the device press the key ON PROGr 6 in the middle of the cursor block There always appears the last called up meas menu first in the display To switch off the device leave a working menu with ESC r a...

Page 16: ...sed sockets there are dummy connectors 7 2 Measuring inputs and Additional Channels The measuring instrument ALMEMO 2690 8 has 5 input sockets 1 that the measuring channels M0 to M4 are initially allo...

Page 17: ...puts are electrically isolated by photovoltaic relais and between them a potential difference of at most 50 V DC or 60V AC is permitted Howe ver combined sensors within one connector and sensors with...

Page 18: ...lected menu with key or PROG Back to the last meas menu using the key once Back to the last programming menu using the key again Back to the menu selection with key ESC The device designation in the h...

Page 19: ...pped or started ll or Measuring point scan started including storing REC Measuring point scan started incl output via interface COM Start end time of measurement is programmed l or l Relay status exte...

Page 20: ...g the programmed values CLR For programming press the key PROG Then you are in the input mode P in the middle of the softkey line the cursor flashes below the first cursor position Cycle Timer 00 00 0...

Page 21: ...selection MEASURING Menus and dif fer in the number of measuring points 1 to 20 in the display of measured values in different sizes of the digits 4 8 12 mm or as bar or line chart and in the arrangem...

Page 22: ...termined and stored from the acquired measured values of each measuring point The functions listed below are available to display these values function channels are available put them out s 10 3 10 Th...

Page 23: ...t certain times in order to check the deviation from this reference value After selecting the function Meas Value s 8 4 in any menu a help window shows you all possi bilities of correction of the meas...

Page 24: ...lue In the case of dynamic pressure probes the zero point error is al ways written temporarily i e until you switch off to the calibration offset even if the channel is locked 9 2 3 Sensor Adjustment...

Page 25: ...rection a two point adjustment is also possible for other sensors Additionally to the zero point adjustment 9 2 2 the slope can be corrected with a second measuring point using the function Setpoint P...

Page 26: ...ng variables depend on the environmental atmospheric pressure s 10 3 9 measuring range list w PC As a result higher deviations from the normal pressure of 1013mbar can cause corresponding measuring er...

Page 27: ...al block see Manual section 6 7 3 this must be positioned upstream from the thermocouples and J must have been programmed in the first two positions in the comments s 10 3 2 For especially exacting re...

Page 28: ...red s 10 1 2 REC Each time the key is pressed again after this the measured values are equally processed with the corresponding measuring time 9 3 2 Cyclic Output Storage of all Measuring Points For c...

Page 29: ...of measuring data to con tinuously monitor the available memory space By selecting this function two soft keys are available for a direct output and clearing of the memory The out put format correspo...

Page 30: ...e menu in this case do not change the meas point Limits if activated are entered as dotted lines The functions Analog Start and Analog End of the menu Special functions s 10 4 4 can be used to set the...

Page 31: ...n assistant menu for all modes to put in the necessary parameters and to learn the operation by help windows Measuring menu Average Value However most of the averaging functions can also be carried ou...

Page 32: ...uld be reduced too much with many measuring points Conv rate 10M s Cont 9 4 2 Averaging Mode A detailed description of averaging over measuring point scans is given in the manual section 6 7 4 The typ...

Page 33: ...y with respect to the flow direction s man 3 5 5 A special menu for net measurements is available to re cord all single values or to have the possibility to repeat error measurements It can be selec t...

Page 34: ...ng using the key START Reading the meas time s 9 4 6 in function Meas Time 00 01 23 40 Stopping the averaging using the key STOP ll Reading the average value in function Average value 13 24 C Output o...

Page 35: ...enu by using PRINT Average value over manual periods It is also possible to determine the average value over periods from one manu al measuring point scan to the next with the same averaging mode but...

Page 36: ...f measuring points can be activated by pro gramming the reference channels accordingly s 10 4 6 The function channel can be confi gured quickly and easily by means of the help menu for Averaging Examp...

Page 37: ...3 h v m s CS cm2 For rough air volume measurements at air vents the average flow velocity v can be determined by a time based averaging s 9 4 5 a man 3 5 5 The rotating vane must be applied at one end...

Page 38: ...ow be changed by means of M M The channel selection is terminated with key ESC 9 5 2 Differential Measurement If there are two sensors with the same dimensions and same decimal point po sition connect...

Page 39: ...MeasValList Comment 00 23 12 C Temperature Measured value including maximum value MeasValList Max value 00 23 12 C 32 67 C Measured value including minimum value MeasValList Min value 00 23 12 C 19 3...

Page 40: ...asuring by means of STOP 9 6 2 Wet Bulb Globe Temperature The stress caused in heat exposed work places can be evaluated in terms of their wet bulb globe temperature calculated according to the follow...

Page 41: ...ure ZERO ADJ o 15 Meas value medium 3 lines 00 1234 5 C ZERO ADJ o 16 Meas value large 7 lines 00 Temperature C 1234 5 ZERO ADJ o 17 Meas value bar chart 2 lines 5 0 S220 mls 15 00 o 34 Limit value Ma...

Page 42: ...ns 25 0 C CLR o 44 Setpoint s 9 2 4 Setpoint 1100 0 C OFF ADJ o 45 Meas time s 9 4 6 Meas Time 00 00 00 00 CLR o 46 End of menu o 99 9 7 2 Configuration of the menus Select one user menu U1 U2 or U3 f...

Page 43: ...LIMIT MAX 01 0100 0 C P08 Limit Min LIMIT MIN 01 0020 0 C P09 Base BASE 01 0273 0 C P06 Factor FACTOR 01 1 0350E 1 P07 Zero Point Correction ZERO CORR 01 0000 7 C f1 P06 Slope Correction SLOPE CORR 0...

Page 44: ...5 MenuTitle U3 f9 Text5 Output of the texts 1 to 5 f5 P20 Text1 etc Output of the menu configurations fu P20 Menu title of the menu u U1 MenuTitle U1 In line 00 function yy 00 30 In line 01 function...

Page 45: ...e specified format in the first line on the left side and the date on the right side s 8 5 Function Time and Date Time 12 34 56 Date 01 05 00 Format of time and date hh mm ss dd mm yy 10 1 2 Cycle wit...

Page 46: ...out storage activation are displayed next to the cycle Cycle 00 15 00 Sn 10 1 3 Conversion Rate Continuous Measuring Point Scan If required for measuring point scans the conversion rate can in functio...

Page 47: ...u ring is stopped 3 If the conversion rate is over 10 measurement sec a suppressi on of mains frequency noise is normally not possible Therefore the accuracy can be additionally disturbed by irradiati...

Page 48: ...r configuration is only stored during the first start additional sensors are completed at the next start If other sen sors are connected memory must be readout and cleared before the next recording Me...

Page 49: ...istant menu START STOP The operation via interface is described in the manual section 6 6 The function of start time and end time is de scribed here in section 10 1 4 the limit value responses in sect...

Page 50: ...rtial ranges is available as it is possible to set the start and end time of measurements and also possible to select the number of corresponding identified measurements Menu Memory Output Setting the...

Page 51: ...dicated in the function Residual output Time date and number show the current values Remaining memory output Residual output 12 5 kB current number of memory output Number 01 001A current time and dat...

Page 52: ...command P15 s man 6 2 3 with key PRINT 10 3 1 Selecting the Input Channel To query or to program the parameters of a sensor it is first necessary to select the menu SENSOR PROGRAMMING and then to set...

Page 53: ...A9400 FSx with Ntc to apply to just one thermocouple s 9 2 7 10 3 3 Averaging Mode The types of averaging which are defined through the function Averageing mode are described in section 9 4 2 Function...

Page 54: ...most cases necessary to set a zero point shift and to per form a multiplication with a certain factor The functions BASE and FACTOR are available for this A detailed description of the scaling includ...

Page 55: ...nsion F is entered a temperature value in degree Celsius will be converted into degrees Fahrenheit The cold junction compensation can be switched off by using the characters C The following dimensions...

Page 56: ...FS 400 0 1800 0 C EL18 Au FeCr ZA 9000 FS 270 0 60 0 C AuFe Ntc Type N ZA 9000 FS 30 00 125 00 C Ntc Millivolt 1 ZA 9000 FS 26 000 26 000 mV mV 1 Millivolt ZA 9000 FS 10 000 55 000 mV mV Millivolt 2 Z...

Page 57: ...H DT Partial vapour pressure FH A646 0 0 1050 0 mbar H VP Enthalpy with PC FH A646 0 0 400 0 kJ kg H En Rel humidity psychr with PC FN A846 0 0 100 0 H P RH Mixture ratio with PC FN A846 0 0 500 0 g k...

Page 58: ...M00 to 2 3 4 Chan q Mb1 1 Channel Mb2 M05 WBGT to 2 Channel GT Mb1 1 Channel Mb2 M00 Arrangement of channels on the connectors Once the range has been programmed the standard reference channels can b...

Page 59: ...n ten times however if 00 is programmed it will not be output The data recording also allows to suppress unnecessary measured values and as a result saves memory space Enter the print cycle factor s 8...

Page 60: ...and the re lay adapter ZA 8000 RTA provides 4 relays 0 to 3 This mode also has to be set as variant 2 in the output module s 10 6 2 man 6 10 9 Output socket A2 Setting the relay module to variant 2 E...

Page 61: ...3 to programm all pa rameters of an analog output 10 4 5 Output Function If not the real measured value but only the Max Min Average or Alarm value is required then this function can be programmed as...

Page 62: ...fter Reference channel 1 In all other cases it is possible to change the pin assignment in the connector by changing the input multiplexer with the function Multiplexer s manual 6 10 2 Programming of...

Page 63: ...quire the measured values of several instruments that are located at different places see manual 5 3 For communicating with networked devices it is mandatory that all devices have the same baud rate a...

Page 64: ...display can be switched on or off in 3 levels in the selection menus by using the key ON or in the function Lighting of the device configuration attention the power consumption is fife times higher i...

Page 65: ...f 20 channels 5 are activated Meas Chan 20 active 05 Cold junction temperature socket temperature CJ Temperature 25 4 C 10 6 Output Modules The data logger ALMEMO 2690 8 has two output sockets A1 and...

Page 66: ...de max 4 switching contacts for the triggering of peripheral devices and trigger inputs see manual 6 6 4 They are connected to the output socket A2 2 and their function can be programmed see manual 6...

Page 67: ...put socket A2 Selection of the measuring channel 00 216 7 C which is to be output using the key Scaling of the analog output Programming the analog output start Analog start 0 0 C Programming the anal...

Page 68: ...ectable sensor vol tage is generated approx 6 9 or 12 volts With sensors that draw a lot of current but manage with relatively low voltage the ideal sensor voltage selection can save a lot of energy S...

Page 69: ...fully charged the adapter switches over to trickle charge and the LED starts flashing If the accumulators are discerned contact there appears in the display Accumulators The accumulator capacity must...

Page 70: ...nadmissible electrical connection disconnect all suspicious sensors connect hand held sensors and operate them in air or connect dum mies short circuit AB at thermocouples 100 at Pt100 sensors and che...

Page 71: ...Holzkirchen Germa ny including a short report and possibly control printouts Additionally the software AMR Control allows to print the monitor pages including the program ming and also to save an exte...

Page 72: ...Current consumption without active mode approx 30 mA input and output modules with lighting approx 50 150 mA sleep mode approx 0 05 mA Housing L204 x B109 x H44 mm ABS weight 550g Operation condition...

Page 73: ...ing Points 9 4 8 36 Averaging over the Cycle 9 4 7 35 Averaging over the Measuring Time 9 4 5 34 Bar chart 9 5 1 38 Base 10 3 6 54 Battery operation 6 1 14 Baud Rate 10 5 3 64 Changing the Dimension 1...

Page 74: ...54 Extent of the Delivery 3 2 7 External DC Voltage Supply 6 4 15 Factor 10 3 6 54 Function Channels 10 3 10 58 Function Keys 8 2 19 Function Printouts 9 7 3 43 Function Range of the ALMEMO 2690 8 4...

Page 75: ...ating Controls 1 2 Operating Parameter 10 5 8 65 Operation conditions 13 1 72 Order No 13 2 72 output cables 10 6 2 66 Output Format 10 1 2 29 45 Output Function 10 4 5 61 Output Modules 10 6 65 Outpu...

Page 76: ...f measurements 10 2 3 49 Storage Activation 10 1 2 45 Supply Voltage Control 6 1 14 Switch off 8 1 18 Switch On Off 6 6 15 Technical Data 13 1 72 Temperature Compensation 9 2 5 26 Thermal Coefficient...