Related Manuals for Ahlborn ALMEMO 2690-8A
Summary of Contents for Ahlborn ALMEMO 2690-8A
- Page 1 ____________________________ Operating Instructions Data Logger ALMEMO ® 2690-8A V4.3 12.10.2012 www.ahlborn.com...
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Page 2: Operating Controls
1. Operating Controls 1. OPERATING CONTROLS (1) Meas. inputs M0 to M4 M0 ... M4 for all ALMEMO-Sensors M10...M34 15 additional channels (2) Output sockets A1, A2 A1 Interfaces USB(ZA1919-DKU) Interface V24 (ZA 1909-DK5) Fiber optics V24 (ZA 1909-DKL) Ethernet (ZA 1945-DK) RS 422 (ZA 5099-NVL/NVB) Analog output 2 (ZA 1601-RK) A2 Network cable (ZA1999-NK5/NKL) -
Page 3: Table Of Contents
Table of Contents 2. TABLE OF CONTENTS 1. OPERATING CONTROLS................2 3. GENERAL....................6 3.1 Guaranteed..................6 3.2 Extent of the Delivery .................6 3.3 Waste disposal..................7 4. SAFETY INSTRUCTIONS................8 4.1 Special notes on use................9 4.2 Handling batteries / rechargeable batteries correctly......9 5. - Page 4 2. Table of Contents 10.2.4 Two-point Adjustment with Setpoint Entry........28 10.2.5 Temperature Compensation ............29 10.2.6 Atmospheric Pressure Compensation........29 10.2.7 Cold Junction Compensation............30 10.3 Measuring point scans and Output..........31 10.3.1 Single Output / Storage of all Measuring Points.......31 10.3.2 Cyclic Output / Storage of all Measuring Points......31 10.3.3 Memory space, Memory Output, Clearing the Memory....32 10.3.4 Output of Menu Functions............32 10.3.5 Displaying Measured Values as a Line Diagram .....33...
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Page 5: Table Of Contents
Table of Contents 11.3 Sensor Programming..............55 11.3.1 Selecting the Input Channel............55 11.3.2 Measuring Point Designation............56 11.3.3 Averaging Mode...............56 11.3.4 Locking the Programming of the Sensor........56 11.3.5 Limit Values................57 11.3.6 Scaling, Decimal Point Setting..........57 11.3.7 Correction Values..............58 11.3.8 Changing the Dimension............58 11.3.9 Selecting the Measuring Range..........58 11.3.10 Function Channels ..............61 11.3.11 Special meas. -
Page 6: General
3. General 3. GENERAL Congratulations for buying this innovative ALMEMO ® data logger. By means of the patented ALMEMO ® connectors the device configures itself and with the help of menus and help windows the operation should not be too difficult. How- ever, the device allows the connection of a great variety of sensors and peri- pherals with many special functions. -
Page 7: Waste Disposal
Waste disposal 3.3 Waste disposal The pictogram showing a waste bin crossed through means that the product is subject to European Union regu- lations on segregated waste disposal. This applies both to the product itself and to any accessories marked with the same symbol. -
Page 8: Safety Instructions
4. Safety instructions 4. SAFETY INSTRUCTIONS DANGER Danger to life and limb, risk of damage to equipment Read the instructions carefully before starting to operate the device. Please ensure that you comply with all general safety ad- vice and the special safety instructions included in other chapters. -
Page 9: Special Notes On Use
2690-8 is a new instrument from the unique ® ® product range of measuring devices that are all equipped with the ALMEMO connector system, which has been patented by Ahlborn GmbH. The intelligent ® ALMEMO connector provides important advantages with regard to the con- nection of sensors and peripherals as all parameters are stored in an EEP- ROM within the connector. -
Page 10: Functions
5. Introduction ® can be connected to all ALMEMO measuring devices in the same way. The operation and programming is identical with all units. Therefore, all of the AL- ® MEMO measuring system items listed below are described, in detail, in a sep- ®... - Page 11 Functions data from other sensors is easily possible by using the voltage, current and resistance ranges with individual scaling in the connector. Existing sensors can ® be used without problems. Only the corresponding ALMEMO connector has to be connected using its terminals. Furthermore, there are adapter connectors with an own microcontroller for digital signals and for measuring frequencies ®...
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Page 12: Measurement
5. Introduction Sensor Locking All sensor data stored in the EEPROM of the connector can be protected against undesired access by means of a graded locking function. 5.1.2 Measurement A total of up to 20 meas. channels are available for 5 transducers, i.e. it is also possible to evaluate double sensors, individually scaled sensors, or sensors with function channels. -
Page 13: Process Flow Control
Functions 5.1.3 Process flow control A continuous measuring point scan with a time-based process flow control for the output of measuring valures is required to register the measuring data of all connected sensors. For this purpose, an output cycle is available and, if fast processing is required, the conversation rate is available. -
Page 14: Initial Operation
5. Introduction and one analog output. Operation All measuring and function values can be displayed in different menus on the dot matrix LCD display. 3 user menus can be individually configured from nearly 50 functions for your specific applications. Using texts, lines and blank lines allows to format the printout in an application-specific style. -
Page 15: Power Supply
Initial Operation ALMEMO 2690-8 C © REC COM l© ©l R01 * ´´´´´´µµµµ¶ ±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±± ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ MEASURING-Menus: Standard display © Velocity U1 Meas. value correction U2 Averaging æ » º U3 Volume flow 28.67 Data logger Multi channel display *List of measuring points Bar charts Maximum value: 31.34 mls... -
Page 16: Rechargeable Battery Operation Voltage Monitoring
7. Power supply Rechargeable battery operation voltage monitoring Power is supplied to the measuring instrument as standard by 3 NiMH batter- ies. At a current consumption of approx. 17 mA the operating time will be ap- prox. 110 hours. If the display illumination is left switched on, this operating time will be reduced to approx. -
Page 17: External Dc Voltage Supply
External DC voltage supply 7.4 External DC voltage supply It is also possible, at DC socket (3), to connect a USB data supply cable (5 V, 0.4 A) ZA1919-DKU5 or, via ALMEMO ® connector (ZA1000-FSV), to connect any other DC voltage (6 to 12 V, minimum 200 mA). If, however, the power supply has to be electrically isolated from the transducers or if a larger input voltage range (10 to 30 V) is required, then electrically isolated supply cable ZA2690-UK (250 mA) or -UK2 (1 A) must be used. -
Page 18: Connection Of The Transducers
8. Connection of the Transducers 8. CONNECTION OF THE TRANSDUCERS ® ® Any ALMEMO sensors can be connected to the ALMEMO input sockets M0 to M4 of the measuring instrument (1). For connecting existing sensors it is ® only necessary to connect a corresponding ALMEMO connector. -
Page 19: Isolation
Measuring inputs and Additional Channels Advantage of the device-internal channels: If several sensors are being used for the same application, they do not have to be reprogrammed and can be freely exchanged without losing their function channels. If, however, the whole application operates with just one sensor, then programming in the sensor it- self makes more sense. - Page 20 8. Connection of the Transducers output, the registration device or the sensors have to be potential free. Electrically isolated A/D converter (option GT) With option OA2690-GT the analog inputs downstream from the A/D converter are also electrically isolated from the device itself and from the power supply by means of optocouplers.
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Page 21: Display And Keypad
Display and Keypad 9. DISPLAY AND KEYPAD 9.1 Display and Menu Selection The display (5) of the measuring instrument ALMEMO 2690-8 consists of a dot matrix LCD display with 128x128 dots, or 16 lines with 8 dots. For the acquisi- tion of measuring data with the required functions and for the programming of the process control, the sensors and the device parameters, 3 categories of menus are available: Measuring-Menus (s. -
Page 22: Function Keys
9. Display and Keypad 9.2 Function Keys C © REC COM l© ©l R01 * ´´´´´´µµµµ¶ The function of the keys (6) can ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ be different in the various menus. It is indic- Velocity ated by abbreviations in the bottom line of æ... -
Page 23: Function Selection
Function Selection 9.4 Function Selection C © REC COM l© ©l R01 * ´´´´´´µµµµ¶ Each menu consists of a number of func- ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ tions that, possibly, have to be used or Velocity programmed during operation. æ » º 28.67 Help window at To set measured value to zero, press key: ZERO function selection:... -
Page 24: Measuring Using Measuring-Menus
10. Measuring using Measuring-Menus 10. MEASURING USING MEASURING-MENUS After the first switch-on, the device shows the C © REC COM l© ©l R01 * ´´´´´´µµµµ¶ menu Meas. points list (s. 10.5.3). It offers a ±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±± Meas.points list: Comment good overall view over the whole measuring sys- Time: 12:34:56 Date: 01.01.04 tem. -
Page 25: Measuring With One Measuring Point
Measuring with one Measuring Point 10.1 Measuring with one Measuring Point Standard display C © REC COM l© ©l R01 * ´´´´´´µµµµ¶ ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ The menu shows a measur- Standard display ing point in the largest display with measuring Velocity point, comment and dimension. Some symbols æ... -
Page 26: Correction Of The Meas. Value And Compensation
10. Measuring using Measuring-Menus diately displayed after the clearing process. Furthermore, the peak values are cleared at each start of a measurement, if the device has been correspond- ingly configured (standard setting, s. 11.5.8). 10.2 Correction of the Meas. Value and Compensation To achieve a maximum accuracy of measure- C ©... -
Page 27: Zero Point Adjustment
Correction of the Meas. Value and Compensation 10.2.2 Zero Point Adjustment Many sensors must be adjusted at least once or at regular intervals to com- pensate for instabilities. For this purpose, a specific zero point adjustment is available, in addition to the ´Set Meas. Value to Zero´ mentioned above, for not influencing the scaling. -
Page 28: Two-Point Adjustment With Setpoint Entry
10. Measuring using Measuring-Menus 1. Setting up a means of calibration for the zero point: Setpoint 1: 07.00 Select function Setpoint 1: Zero point adjustment with key: <ADJ> 07.00 º The adjustment meas. value is recorded: In the case of pH probes, the standard values, base value 7.00 and ... -
Page 29: Temperature Compensation
Correction of the Meas. Value and Compensation 10.2.5 Temperature Compensation Sensors with measured values that are strongly depending on the temperature of the measuring medium are, in most cases, equipped with a specific temper- ature sensor and the instrument will automatically perform a temperature com- pensation (s. -
Page 30: Cold Junction Compensation
10. Measuring using Measuring-Menus Atm. pressure 1013 mbar Enter atm. pressure in the 'Atm. pressure' function Atm. pressure 0938 mbar Atmospheric pressure is measured internally Atm. pressure 0938 mbar ´Atm. pressure´ function with active compensation To use internal atmospheric pressure sensor - press keys PROG <CLEAR>... -
Page 31: Measuring Point Scans And Output
Measuring point scans and Output 10.3 Measuring point scans and Output Measuring point scans can be used to acquire C © REC COM l© ©l R01 * ´´´´´´µµµµ¶ the measured values of all measuring points at ±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±± particular times, either manually or cyclically Time: 12:34:56 Date: 01.01.04 Cycle timer: 00:00:30 nS... -
Page 32: Memory Space, Memory Output, Clearing The Memory
10. Measuring using Measuring-Menus Cycle Timer: 00:02:00Sn Format columns next to each other ´n´: Change format: <FORM> Cycle Timer: 00:02:00St Format table ´t´: Starting a cyclic measuring point scan: <START> For control purposes the following symbols will continuously, i.e. for the whole meas.period, be indicated in the status line: The start arrow lights up ´... -
Page 33: Displaying Measured Values As A Line Diagram
Measuring point scans and Output 10.3.5 Displaying Measured Values as a Line Diagram When using the menu Line diagram meas. value of the selected channel is indic- ated as a line chart with 100x200 dots as soon as a measurement is started. The curve con- tinuously moves from the right to the left, the time resolution is determined by the cycle, each scan involves one point (dot). -
Page 34: Averaging
10. Measuring using Measuring-Menus 10.4 Averaging The average value of the measured value is required for various applications: e.g. Smoothing of a largely varying measured value (wind, pressure etc.). The average flow velocity in a ventilating channel. Hourly or daily average values of weather data (temp., wind etc.). As above, of consumption values (current, water, gas etc.). -
Page 35: Damping Of Meas. Values By A Sliding Averag. Window
Averaging 10.4.1 Damping of Meas. values by a Sliding averag. window The first possibility of averaging concerns only the measured value of the indic- ated channel and helps to damp measured values of an unstable or strongly fluctuating nature, e.g. particular turbulent flows by means of sliding averaging over a time window. -
Page 36: Array Measurement
10. Measuring using Measuring-Menus ∑ M= /N MANU MANU MANU MANU 1. Stop measurement, if it is started: <STOP> Averaging mode: CONT 2. Set the averaging mode (s. 9.5): Damping: For smoothing a meas. value select damping: Conv. rate:10M/sCont: Switch the continuous scanning off, if required: 3. -
Page 37: Averaging Over The Measuring Time
Averaging 10.4.5 Averaging over the Measuring Time To determine the average value of all meas. values, that were acqired over the conversion rate, over a defined period, the averaging mode ´CONT´ must be set for the required measuring channel. Averaging can be carried out with or without cycle. -
Page 38: Averaging Over The Cycle
10. Measuring using Measuring-Menus Use a programmed measuring duration when recording to memory; this ensures that recording does not abort prematurely. Timer as function channel Measuring times can be output and saved by means of the function channel Time; the format is “sssss” or “ssss.s”. (see 10.3.9) The resolution can be raised to 0.1 seconds by programming the exponent to -1. -
Page 39: Averaging Over Several Measuring Points
Averaging For recording the average values an additional function channel with the range M(t) (s. 11.3.9, 11.3.10) or the corresponding out- put function M(t) (s. 11.4.5, man. 6.10.4) is required instead of the measured value. 10.4.8 Averaging over several Measuring Points In all measuring point scans the average value can also be determined over a number of associated measuring points. -
Page 40: Volume Flow Measurement
10. Measuring using Measuring-Menus 10.4.9 Volume Flow Measurement The volume flow in flow channels can be cal- C © REC COM l© ©l R01 * ´´´´´´µµµµ¶ culated by multiplying the average flow velocity ±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±± 01: 11.67 mls Volocity and the cross-section surface. The func- |¹¹¹¹¹¹¹¹¹¸¹¹¹¹¹¹¹¹¹¸¹¹¹¹¹¹¹¹¹¸¹¹¹¹¹¹¹¹¹¸¹¹¹¹¹¹¹¹¹|¹¹¹¹¹¹¹¹¹¸¹¹¹¹¹¹®®®¸®®®®®®®®®¸®®®®®®®®®¸®®®®®®®®®| 5.00 S220 mls... -
Page 41: Display Of Several Measuring Points
Display of Several Measuring Points 10.5 Display of Several Measuring Points The already mentioned measuring menus allow, on principle, only the selection and display of one measuring point. This chapter provides a description on how you can get several measuring points with your selection of functions sim- ultaneously on the display. -
Page 42: Menu List Of Measuring Points
10. Measuring using Measuring-Menus 10.5.3 Menu List of Measuring Points The best overview of the meas. system incl. all meas. values, time of day, date and cycle C © REC COM l© ©l R01 * ´´´´´´µµµµ¶ ±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±± is obtained with the menu Meas.point list Meas.points list: Comment From here, it is also possible to get to the... -
Page 43: Assistant-Menus For Special Meas. Operations
Assistant-Menus for Special Meas. Operations 10.6 Assistant-Menus for Special Meas. Operations Special measuring operations, i.e. thermal coefficient or wet bulb globe tem- perature, require a series of sensors in a particular arrangement and function channels programmed for calculating the required variables. To ensure that these two special measuring operations can be performed quickly and easily there is a special assistant menu for each. -
Page 44: User Menus
10. Measuring using Measuring-Menus 10.7 User Menus When studying the measurement menus you may have noticed that the display of the meas. value and the combination of functions does not always match your applications in an optimum way. Therefore, you can freely configure the three user menus U1 to U3, in addition to the standard measuring menus using the software AMR-Control. -
Page 45: Configuration Of The Menus
User Menus o 22 Averaging Counts (s. 10.4.3) Counts: 00000. o 23 Number (s. 11.2.3) Number: 123-56 o 24 Range, comment: NiCr Temperature » H º o 25 Diameter mm (s. 10.4.9) Diameter: 0000 mm o 26 Cross section cm (s. -
Page 46: Function Printouts
CROSS SECT: 01: 00078 cm2 Cross section A.PRESSURE:+01013.mb Atm. pressure COMPENSATION:01: 25.0°C Temp. compensation Setpoint SET POINT: 01: 1100.0°C Device designation Fa.Ahlborn,Holzkirchen ----------------------------- Line Blank line Text1 Comment Text 1 Text2 Comment Text 2 Text3 Menu Title U1 Text4 Menu Title U2... -
Page 47: Programming With Programming-Menus
Programming With Programming-Menus 11. PROGRAMMING WITH PROGRAMMING-MENUS Apart from the measuring functions you have ALMEMO 2690-8 already get to know some functions for pro- ±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±± PROGRAMMING-Menus: cess control and sensor programming in the Times, cycles Recording to memory © measuring menus. Output from memory Here in the you find a... -
Page 48: Conversion Rate, Continuous Measuring Point Scan
11. Programming With Programming-Menus The output format (see manual 6.6.1) determines the print format at measur- ing point scans and at the memory output. It is programmed by using the func- tion . Apart from the standard format ´List´ with all measured Output form values given in a list, the output format ´Columns´... -
Page 49: Time And Date Of Start, Time And Date Of End
Times and Cycles channels will be continuously and successively scanned by the conversion rate and all measured values are always up-to-date (s. man. 6.5.1.3). This doubles the total sampling rate. In both modes all measured values can be saved and / or output at any time. -
Page 50: Data Memory
11. Programming With Programming-Menus 11.2 Data Memory ® The basic information with regard to data storage in ALMEMO devices is giv- en in the manual section 6.9. The internal data memory of the ALMEMO 2690- 8 is a 1MByte EEPROM with capacity sufficient for 128.000 to 200.000 meas- ured values (depending on the channel number). -
Page 51: Data Acquisition
Data Memory When plugging in the connector make sure that the card remains latched in position ! The ring memory mode is not supported by memory cards 11.2.2 Data Acquisition Most of the parameters, which are required for the recording of measuring data, have already been described in the menu (s. -
Page 52: Numbering Of Measurements
11. Programming With Programming-Menus 11.2.3 Numbering of measurements For the identification of measurements or series of measurements it is possible to individually enter a number before starting. With the next measuring point scan it will be output or stored, respectively. This allows to also assign single measurements during a read-out to specific measurement locations or meas- uring points (s. - Page 53 Data Memory point scans. At 10 minutes for one cycle this results in a total measuring time of more than 100 days. The following steps must be carried out in the menu Recording to memory perform a data recording in the sleep mode: Cycle: 00:05:00 1.
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Page 54: Memory Output
11. Programming With Programming-Menus 11.2.6 Memory Output The content of the data memory can, com- OUTPUT FROM MEMORY pletely or in parts, be output to the serial in- ±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±± Memory Internal: 512.0 kB terface. For each output one of the three Memory free: 125.8 kB available output formats ´List´, ´Columns´... -
Page 55: Sensor Programming
Data Memory Clear memory Select function (s. 9.4): Memory free: 384.5kB Memory free To clear the memory, press the key: <CMEM> Memory free: 512.0kB Full memory capacity is indicated in function: Cancel by using the key: <ESC> 11.3 Sensor Programming ®... -
Page 56: Measuring Point Designation
11. Programming With Programming-Menus 11.3.2 Measuring Point Designation Each measuring point can be given a 10-digit alphanumeric designation to op- timally identify the type of sensor, the measuring location or the purpose of the application. This comment will be indicated with all standard displays of meas- ured values. -
Page 57: Limit Values
Sensor Programming 11.3.5 Limit Values Two limit values (MAX, MIN) can be programmed and allocated to each meas- uring channel. An exceeding of limit values is handled as a fault, similar to an exceeding of meas. range limits and sensor breakage. On the display a corres- ponding arrow ... -
Page 58: Correction Values
11. Programming With Programming-Menus 11.3.7 Correction Values The correction values ZERO CORRECTION and SLOPE CORRECTION allow for correcting sensors with regard to zero point and slope (s. man. 6.3.10). Corrected Meas. Value = (Meas.Value - ZERO CORR.) x SLOPE CORR. Function: 4 Zero correct.: -----°C Zero point correction:... - Page 59 Sensor Programming 1 RANGE: FECO the following table are indicated successively ZA 9021FSL and a corresponding help window to identify Thermocouple Typ L the sensors: -200.0 ... 900.0 °C Transducer Conn./Cable/ Meas. Range Dim Display Sensor ZA 9000-FS -200.0... +850.0 °C P104 Pt100-1...
- Page 60 11. Programming With Programming-Menus Transducer Conn./Cable/ Meas. Range Dim Display Sensor DIGI Digital interface ZA 9919-AKxx -65000... +65000 ZA 9000-FS 0.0... +200.0 °C Ir 1 Infrared 1 Infrared 4 ZA 9000-FS -30.0... +100.0 °C Ir 4 Infrared 6 ZA 9000-FS 0.0...
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Page 61: Function Channels
Sensor Programming Transducer Conn./Cable/ Meas. Range Dim Display Sensor Alrm Alarm value (Mb1) q/dT Thermal coeff. q ZA 9000-FS M01−M00 WBGT Wet bulb globe temperature ZA 9000-FS °C Cold junction temperature °C Flow Volume m /h Mb1 · Q Time Timer 0...65000... -
Page 62: Special Meas. Ranges, Linearization, Calibration
11. Programming With Programming-Menus A new feature is the presence of four device-internal channels: Sensor channels Device internal channels 4. Channel 3. Channel 2. Channel 1.Channel Difference M01-M00 A2 A1 DC M0 M1 M2 M3 M4 M5 is programmed by default as differential channel M1-M0; this applies if there are two sensors with the same units and same decimal point position connected at measuring points M0 and M1. -
Page 63: Special Functions
Special Functions 11.4 Special Functions The data logger 2690-8 has a separate menu SPECIAL FUNCTIONS ® allowing access to all ALMEMO special func- ±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±± Connector: 1 Channel: 11 tions, which despite only rarely being required Print cycle factor: U-Sensor min: 12.0 V during routine operation, are very useful for 7 Action max:... -
Page 64: Limit Value Responses
11. Programming With Programming-Menus 11.4.3 Limit Value Responses Relay Allocation As standard, both limit values of all measuring points of a device are used for fault alarms (s. 11.3.5), i.e. if an exceeding of a limit value occurs at any meas- uring point, the relay 0 responds if an Alarm Relay Cable or a corresponding Relay Adapter (s. -
Page 65: Analog Output Start And End
Special Functions 11.4.4 Analog Output Start and End In most cases the analog output of measured values to the analog output mod- ules (see manual 5) or the display as bar or line chart must be scaled to a spe- cified sub-range. -
Page 66: Reference Channel 1
11. Programming With Programming-Menus 11.4.6 Reference Channel 1 The arithmetic functions of the function channels, generally, refer to a particu- lar measuring channel (or 2 meas. channels) (s. 11.3.10, man. 6.3.4). During the programming of a function channel the first channel of the corresponding sensor connector Mxx1 is automatically set as reference channel Mb1. -
Page 67: Device Configuration
* DEVICE CONFIGURATION * the menu . The DEVICE CONFIGURATION ±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±±± Device designation: device designation serves as print header in Ahlborn, Holzkirchen log printouts and facilitates the assignment Device: 00 V: 6.05 XY Baud rate: 9600 Bd within a network. Furthermore, the device... -
Page 68: Baud Rate, Data Format
11. Programming With Programming-Menus 11.5.3 Baud Rate, Data Format All interface modules are factory-set and programmed to 9600 baud. To avoid unnecessary problems when networking several devices the baud rate should not be modified but the computer or printer should be set up accordingly. If this is not possible the values 1200, 2400, 4800, 9600bd or 57.6, 115.2 kbd can be entered in the function Baud Rate (please consider the max. -
Page 69: Hysteresis
Device Configuration 11.5.7 Hysteresis In case of an exceeding of limit values the hysteresis of an alarm condition can, generally for all sensors, be set in the function Hysteresis (s. 11.3.5 and manual 6.2.7) within the range from 0 to 99 digits (standard setting is 10 digits). -
Page 70: Data Cable
11. Programming With Programming-Menus 11.6.1 Data cable The serial interface can be used to output cyclic data logs, all function values of the measuring menus, as well as the whole programming of the sensors and ® the device to a printer or computer. The ALMEMO data cables and the con- nection to the instruments are described in the manual section 5.2. - Page 71 Output Modules 0: Summated alarm 0: Alarm if any one channel of all channels is faulty 2: Assigned internally 2: Alarm for a programmable channel 3: Alarm, if one limit value - maximum of all is overshot 3: Summated alarm - maximum 4: Alarm, if one limit value - minimum of all is undershot 4: Summated alarm - minimum 8: Driven externally 8: Relay driven via interface or keypad...
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Page 72: Analog Output
11. Programming With Programming-Menus 11.6.3 Analog Output For an analog recording of measured values it ANALOG OUTPUT is still possible, at sockets A1 and / or A2 (2) ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ Output socket: to connect V5 output modules with an analog RK Recording cable 20mA output, e.g. -
Page 73: Menu Power Supply
Menu Power Supply 11.7 Menu Power Supply Power for the measuring instrument is usually supplied by three AA battery cells - normally re- POWER SUPPLY ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ chargeable - or alternatively standard batteries. Battery voltage: 3.8 V The power supply menu provides an estima- Sensor voltage set: 9.0 V Sensor voltage act:... -
Page 74: The Locking And Calibration Menu (Option Kl)
11. Programming With Programming-Menus batteries charge automatically ended. Then only will the network icon. Batteries are loaded correctly in all cases. The external charge adapter from re- chargeable battery set ZA2690-AS cannot be used with this device. 11.8 The locking and calibration menu (option KL) In the you can "Locking and calibration"... -
Page 75: Troubleshooting
Troubleshooting 12. TROUBLESHOOTING The data logger ALMEMO 2690-8 can be configured and programmed in many differ- ent ways. It allows for a connection of many different sensors, additional measuring in- struments, alarm signalisers and peripheral devices. Due to the large variety of options it is possible that, under certain conditions, it does not perform as the user would ex- pect. -
Page 76: Declaration Of Conformity
´function test´ in the device list or the terminal operation and to print it out. 13. DECLARATION OF CONFORMITY Ahlborn Mess- und Regelungstechnik GmbH declares herewith that measuring instrument ALMEMO ®... -
Page 77: Appendix
Appendix 14. APPENDIX (see manual 2.3) 14.1 Technical Data Measuring inputs: 5 ALMEMO ® sockets for ALMEMO ® flat connectors Meas. channels: 5 primary channels el. isol., max. 19 add. channels for double sensors and function channels AD-converter: Delta-sigma >16bit, 2.5, 10, 50, 100, M/s, amplific. 1..100 500M/s (Option Q5) Sensor voltage supply: 6V 0.2A, 9V 0.15A, 12V 0.1A (mains adapter: 12V) -
Page 78: Product Overview
14. Appendix 14.2 Product overview Data logger ALMEMO 2690-8A Order No. 5 inputs, max. 24 channels, 2 outputs, cascadable interface, 9 keys, LCD graphics display, real time clock, 1MB EEPROM memory Battery charger and atmospheric pressure sensor integrated MA 2690-8A... -
Page 79: Keyword Index
Keyword index 14.3 Keyword index Action max and Action min 11.4.3 activation mode 11.6.2 actual contact status 11.6.2 Additional Channels Alarm Relay Cable 11.4.3 Analog Output 11.6.3 Analog Output Start and End 11.4.4 Array Measurement 10.4.4 Assistant-Menus 10.6 21, 43 Atmospheric Pressure 11.5.6 Atmospheric Pressure Compensation... - Page 80 14. Appendix Data buffering Data cable 11.6.1 Data Entry Data Format 11.5.3 Data Memory 11.2 Decimal Point Setting 11.3.6 Declaration of conformity Device Address 11.5.2 Device Configuration 11.5 Device Designation 11.5.1 Differential Measurement 10.5.2 Display Display of Several Measuring Points 10.5 Element Flags 11.4.8...
- Page 81 Keyword index Measuring duration 10.4.6 Measuring inputs 14.1 18, 77 Measuring Point Designation 11.3.2 Measuring point scans 10.3 Measuring with one Measuring Point 10.1 Measuring-Menus 21, 24 Memory Output 11.2.6 32, 54 Memory space 10.3.3 Menu List of Measuring Points 10.5.3 Menu Power Supply 11.7...
- Page 82 14. Appendix Scanning mode 11.2.5 Selecting the Input Channel 11.3.1 Selecting the Measuring Point 10.1.1 Selecting the Measuring Range 11.3.9 Sensor Adjustment 10.2.3 Sensor Programming 11.3 10, 55 Sensor Supply Setpoint Entry 10.2.4 Setting the Meas. Value to Zero 10.2.1 Single Output 10.3.1 Sliding averag.
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Page 83: Your Contact
Your contact 14.4 Your contact Ahlborn Mess- und Regelungstechnik GmbH, Eichenfeldstraße 1-3, D-83607 Holzkirchen, Germany Tel. +49(0)8024/3007-0, Fax +49(0)8024/300710 Internet: http://www.ahlborn.com, e-mail: amr@ahlborn.com We take every possible care but the risk of inaccuracy can never be altogether excluded. We reserve the right to make technical changes without advance notice. - Page 84 14. Appendix ALMEMO 2690-8...
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