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Summary of Contents for Ahlborn ALMEMO 202-S
- Page 1 ____________________________ Operating instructions English special measuring instrument ALMEMO 202-S and ALMEMO ® ® for digital sensors V1.0 11.05.2023 www.ahlborn.com...
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Page 2: Operating Controls
OPERATING CONTROLS (1) Measuring sockets M0, M3 (depending on type) M0...M3 for digital ALMEMO ® sen- sors DIGI, D6, D7 only M0.0...M3.9 for up to 40 meas. chan. (2) Output socket A1, A2 A1 USB interface (ZA 1919-DKU) Optic fiber (ZA1909-DKL) V24 (ZA1909-DK5) Ethernet (ZA1945-DK) Trigger input (ZA1006-ET/EK2) -
Page 3: Table Of Contents
TABLE OF CONTENTS Operating controls ..................2 Table of Contents ..................3 General ....................... 7 Warranty ..................... 7 Standard delivery ................8 Waste disposal ................... 8 Safety instructions ..................9 Special notes on use................ 10 Handling batteries / rechargeable batteries correctly ...... 10 Introduction .................... - Page 4 2. Table of Contents Function keys ................... 23 Function selection ................24 To enter data ..................24 Menu selection ..................26 Measuring menus ................27 11.1 Sensor display menu ............... 27 11.1.1 Measuring channel selection ........... 27 11.2 Measured value correction and compensation ........ 27 11.2.1 Setting measured values to zero ..........
- Page 5 2. Table of Contents 14.5.4 Once-only saving of all measuring points ........ 41 14.5.5 Cyclic saving of all measuring points ........42 14.5.6 Memory capacity, memory output and clearing ....... 42 14.5.7 Scanning configuration ............43 14.5.8 Scan mode ................43 14.5.9 Starting and stopping measuring operations ......
- Page 6 2. Table of Contents 16.5 Interface, device address and networking ........58 16.6 Baud rate, data format ..............58 16.7 Process control ................59 16.7.1 Sampling rate ................59 16.7.2 Scan cycle ................59 16.7.3 Output cycle ................60 16.8 Hysteresis ..................
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Page 7: General
GENERAL Congratulations on your purchase of this special ALMEMO measuring instru- ® ment from our latest V7 generation. Please note that this device is designed exclusively for use with standard digital sensors (DIGI, Freq, Inp) and the new D6 and D7 series. Thanks to the patented ALMEMO plug the device configures ®... -
Page 8: Standard Delivery
3. General 3.2 Standard delivery When you unpack the device please check carefully for any signs of transport damage and ensure that delivery is complete. - Measuring instrument ALMEMO 202-S or ALMEMO 204 with three AA ® ® alkaline batteries - These operating instructions In the event of transport damage please retain the packaging material and in- form your supplier immediately. -
Page 9: Safety Instructions
SAFETY INSTRUCTIONS DANGER Danger to life and limb, risk of damage to equipment Before starting to operate the device, please read the in- structions carefully. Please ensure that you comply with all general safety advice and the special safety instructions included in other chap- ters Such risks may occur in the following circumstances: - Failure to heed the operating instructions and all the safety... -
Page 10: Special Notes On Use
4. Safety instructions 4.1 Special notes on use If the device is brought into the work-room from a cold environment • there is a risk that condensation might form on the electronics. In meas- uring operations involving thermocouples pronounced changes in tem- perature may cause substantial measuring errors. -
Page 11: Introduction
The measuring instruments ALMEMO 202-S and ALMEMO 204 are new mem- ® ® bers in our family of unique measuring devices - all equipped with Ahlborn's pa- tented ALMEMO ® plug system. The intelligent ALMEMO ® plug system - success- fully tried and tested for over 20 years - offers decisive advantages when connect- ing sensors and peripherals;... -
Page 12: Functions Of The Almemo ® 202-S And Almemo ® 204
5. Introduction - Complete list of interface commands with all the printouts (Man., Chapt. 7) - The new V7 commands are described in a special V7 Manual supplementh. The operating instructions you are now reading cover only those features and controls that are specific to this device. -
Page 13: Measuring Operation
5. Introduction always indicate the correct units, e.g. when a transmitter is connected. Conver- sion between °C (Centigrade) and °F (Fahrenheit) is performed automatically. Measured value designation To help identify sensors an alphanumeric designation is also provided (V5 10 characters, D7 up to 20 characters). This designation appears in each meas- ured value display, via interface and in the software. -
Page 14: Process Control
5. Introduction Analog output and scaling Each measuring point can be scaled by means of analog start and analog end in such a way that the measuring range thus defined covers the full range of the bar chart or of an analog output (2 V, 10 V, or 20 mA). At the analog output the device can output the measured value from any measuring point or a pro- grammed value. - Page 15 5. Introduction Output cycle The output cycle can be programmed to any value from 1 second to 24 hours. This function permits cyclic output of measured values to the interface or to the memory and provides cyclic calculation of the average value. Cycle factor The cycle factor can be used to restrict data output from certain channels;...
- Page 16 5. Introduction Operation All measured values and function values can be displayed in different menus on the dot-matrix LCD screen. User menus can be individually configured for your specific applications from a range of nearly 50 functions, texts, lines, and empty lines.
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Page 17: Putting Into Service
PUTTING INTO SERVICE Sensor connection Connect sensors to sockets M0 to M1 (1) s. 8. via batteries or mains adapter at socket DC (3) s. 7.1, 7.2 Power supply (5) once and release s. 7.5 To switch ON Press ON / PROG Automatic display of last measuring menu s. -
Page 18: Power Supply
POWER SUPPLY Power can be supplied to the measuring instrument in any of the following ways Three AA alkaline batteries (included in delivery) Mains adapter, 12 V, min. 1 A, with ALMEMO plug ZA1312-NAx ® Power supply cable, electr. isolated 10 to 30 VDC, 0.25 A ZA2690-UK USB data / power cable 9 V, 0.2 A ZA1919-DKU5... -
Page 19: Sensor Supply
7. Power supply 7.4 Sensor supply At the terminals + (plus) and - (minus) in the ALMEMO ® plug there is a sensor supply voltage of 6 / 9 / 12 V (self-healing fuse, total current 500 mA); this is set automatically depending on the minimum sensor supply. -
Page 20: Connecting Sensors / Transducers
CONNECTING SENSORS / TRANSDUCERS Only digital ALMEMO ® sensors can be connected at input sockets M0 to M1 resp. M0 to M3 (1) on measuring instruments ALMEMO 202-S and ALMEMO ® ® 204, i.e. only standard sensors with DIGI, Freq, or Inp, and all new D6 and D7 sensors. -
Page 21: Measuring Inputs Und Additional Channels
8. Connecting sensors / transducers averaging period. For the purpose of setting individual parameters (e.g. quan- tities, averaging period) a special menu ´Sensor configuration´ is provided by the sensor itself. (s. 15.10) All measured value processing is performed in the sensor itself;... -
Page 22: Display And Keypad
DISPLAY AND KEYPAD 9.1 Display and menu selection Measuring instrument ALMEMO 202-S and ALMEMO 204 incorporates a dis- ® ® play comprising a dot-matrix LCD with 128x64 pixels or 8 rows each 8 pixels high (4) . The menu selection screen offers the following items (s. -
Page 23: Function Keys
9. Display and keypad Battery voltage <3.4 V, remaining capacity <10% flashes ´µµµµµµµµµ¶ In the process control or data logger menu the top status bar also displays the following symbols for checking the device status: Measurement stopped or started: ll or © Values saved in individual value memory: Meas. -
Page 24: Function Selection
9. Display and keypad 9.4 Function selection Each menu comprises a number of functions; these may have to be activated or programmed during op- eration. In conjunction with certain functions a context-sen- sitive help window will appear. To select a functions press: PROG The first modifiable parameter is highlighted in inverse font: 25.45... - Page 25 9. Display and keypad When entering a series of alphanumeric characters select the appropriate group: For upper-case characters: <ABC> For lower-case characters: < abc > For numbers only: < 123 > For arithmetic sign: < + - > When entering certain parameters (e.g. measuring range, relay variant, etc.) this procedure can be used to select and program not only characters but whole designations.
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Page 26: Menu Selection
(if available). UBat: 4.1 V Us: 9.1 V To determine the power supply requirements www.ahlborn.com Mªª MENU M both the battery voltage and the sensor voltage can be displayed. You can obtain any other help you might need at our WEB address. -
Page 27: Measuring Menus
11. MEASURING MENUS The menu provides not only the sensor display (listing all Meas. points list measured values for a particular sensor plus any appropriate compensation val- ues) but also a clear overview of all measuring channels together with the most important data on each (s. -
Page 28: Setting Measured Values To Zero
11. Measuring menus perature or atmospheric pressure is already compensated internally and its asso- ciated values are shown in the sensor display (s. 11.2.2). 11.2.1 Setting measured values to zero One very useful function is to zero the measured 23.4 °C value at certain locations or points in time to act as a reference value from which to observe sub-... -
Page 29: Measuring Points List Menu
11. Measuring menus 11.3 Measuring points list menu The best overview of all measuring points with measured values and function values is obtained via the menu '' Meas. points list This menu can be combined with selected func- tions: When the list is first called up it appears with maximum six Meas. -
Page 30: Measured Data Scanning And Output
12. Measured data scanning and output To return to output cycle (00:01:00): s. 16.7.3 <RESET> To start a cyclic measuring operation (if cycle >0): s. 14.5.5 <START> To initiate manual meas. value scanning (if cycle =0): s. 14.5.4 <MANU> 12. MEASURED DATA SCANNING AND OUTPUT Repeated measuring channel scans are needed in order to continuously monitor and acquire measured values from all measuring channels, to record maximum / minimum values, to detect limit value infringements, and then to output all this... -
Page 31: Usermenus
13. USERMENUS Despite these flexible combinations of measuring menus and function menus there are still certain applications where an individual collection of functions might be preferred (s. 14). This is the purpose of user menu U2 Data logger these can be assembled and configured completely freely using the ALMEMO ®... -
Page 32: Configuration Of User Menus
13. Usermenus Smoothing (s. 14.2.1) o 32 Smoothing 10 Memory free (s. 14.5.6) o 33 Memory free 502.1 KB CMEM PMEM Device designation (s.16.2) o 36 Company name - A Specimen Text1: o 37 1: Comments line Text2: o 38 2: Comments line Text3: (s. - Page 33 13. Usermenus must be selected as function by means of keys The selected measuring point can now be changed < M ▲> < M ▼> The process of measuring point selection is terminated < ESC > To set the display range the functions 'Analog start' and 'Analog end' in the menu should be used (s.
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Page 34: Functions Menus
14. FUNCTIONS MENUS To manage individual tasks each measuring FUNCTIONS MENUS: menu can be assigned a function menu from the Max-Min, indiv. Memory © Averaging adjacent list. For each measuring operation you Two-point adjustment can at any time toggle between measuring menu Scaling and function menu. -
Page 35: Averaging
14. Functions menus Interface commands Response To save a measured value To output memory data P-04 Memory: P01: 0.0: +022.12 °C P02: 0.0: +022.12 °C P03: 1.0: +0039.9 %H P04: 1.0: +0039.9 %H P05: 2.0: +0007.6 °C To clear the memory C-04 14.2 Averaging... -
Page 36: Averaging Over Manually Selected Meas. Operations
14. Functions menus To smooth a measured value over e.g. 15 values Smoothing: Sampling rate: 10 M/s Time constant (s) = Smoothing x Scan time = 3s at a channel In most D6 and D7-sensors, the moving average is already built into the sensor. -
Page 37: Averaging Over Time
14. Functions menus 14.2.3 Averaging over time To determine average values over a certain dura- 25.45 tion there are two possibilities - either by pressing m¡ 1.3: the 'start' and 'stop' keys accordingly or by enter- L840 Flow ing a duration for averaging which is started man- Average value: 24.57 m¡... -
Page 38: Averaging Over Measuring Points
14. Functions menus Program the output cycle (s. 16.7.3 12) Output cycle: 00:15:00 Un Start measuring operation, averaging in progress <START> Verification: » Stop the measuring operation <STOP> Read out the average value of the last cycle in function Aver. value: 13.24 mls 14.2.5 Averaging over measuring points An average value can also be determined over any... -
Page 39: Two-Point Adjustment With Setpoint Entry
14. Functions menus 14.3 Two-point adjustment with Setpoint entry For universal error correction at any two points TWO-POINT ADJUSTMENT: the function menu 0.0: 1.67 °C Temperature Two-point adjustment Actual val.1: ----- 2: ------ provided. If the actual values at two points are Setpoint 1: 0.00 2: 100.00... -
Page 40: Data Logger Functions
14. Functions menus Scaling by means of two-point adjustment Sensors adjusted via the factor, e.g. force transducers and displacement trans- ducers, can also be adjusted online. (as described in 14.3). 1. Simulate, select, and enter setpoint 1: Setpoint1: -100.0 Adjust in by pressing <ADJ>... -
Page 41: Numbering Of Measuring Operations
14. Functions menus Before starting any measuring operation you can, in the function, File name enter an 8-character file name. In the absence of a user-defined file name, the default ´ALMEMO.001´ or the name most recently used will be suggested auto- matically. -
Page 42: Cyclic Saving Of All Measuring Points
14. Functions menus If measured values are being saved, ´ ´ will light up briefly. Each time a key is pressed again the measured values will be processed in the same way with the associated actual measuring duration. 14.5.5 Cyclic saving of all measuring points For cyclic measured value recording either the output cycle or the scan cycle must be programmed in the next menu and saving-to-memory must be activated accordingly (see Manual 6.5.1.2). -
Page 43: Scanning Configuration
14. Functions menus 14.5.7 Scanning configuration The following menu, accessible by pressing key Memory Ext.: 514,41 MB < ►F > , first shows the total memory capacity of Output cycle: 00:01:00 s U the SD card being used. The functions 'Output cy- Save: - Oversampling:- Scancycle:... - Page 44 14. Functions menus Sleep mode Running the device in sleep mode is suitable for long-term monitoring involving long measuring cycles. In energy-saving sleep mode the device switches off com- pletely after each measuring point scan: (for sensors with their own power supply a wakeup delay can be set);...
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Page 45: Starting And Stopping Measuring Operations
14. Functions menus software cycle 10 seconds). Software scanning keeps resetting the internal cy- cle with the effect that this cycle is only actually used if software scanning fails. (Here, similarly, in Win-Control 'safe initialization' must be switched off.). The internal cycle is started as soon as the Win-Control software starts; it may also have been started previously. - Page 46 14. Functions menus Function Start time (Format hh:mm:ss): Start time: 07:00:00 Function End time (Format hh:mm:ss): End time: ------ Function Start date (Format tt:mm:jj): Start date: 01.05.07 Function End date (Format tt:mm:jj): End date: ------ Meas. duration start (Format hh:mm:ss.hh): Meas.
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Page 47: Sensor Programming
15. SENSOR PROGRAMMING Since on ALMEMO ® devices all sensor programming is stored in the ALMEMO ® connector itself, the user will not normally need to reprogram each time. Program- ming will only be necessary e.g. if sensor errors are corrected, if your own sensors are scaled, or if certain limit values are stipulated;... -
Page 48: Averaging Mode
15. Sensor programming 15.3 Averaging mode The various averaging modes that can be defined via the Averaging mode function are described in 14.2 and in the Manual, Section 6.7.4. Function - no averaging: Averaging mode ----- Averaging - start to stop or over individual measuring operations CONT Averaging - over all scans per output cycle CYCL... -
Page 49: Correction Values
15. Sensor programming Function: Enter the limit value, maximum (s. 9.5): LV Max: 123.4 °C Enter the limit value, minimum LV Min: ----- °C To switch limit value off <OFF> To switch limit value on <ON> 15.6 Correction values Sensors can be corrected in terms of zero-point * CHANNEL FUNCTIONS 2 * and gain by means of the 'zero-point' and 'gain' Connector: M0 Channel: 0.0... -
Page 50: Changing The Units
15. Sensor programming Functions: SCALING: 0.1: 4.67 mA Base value: ------ Actual val 1:04.000 2: 20.000 Decimal point: 1 Unit: °C Factor,Exp: ------ E0 Setpoint 1: -100.0 2: 400.0 To calculate the scaling values automatically Gain: ------- Base value: 720.0 °C from the actual value and setpoint the function Factor, Exp: 0.3125 E2... - Page 51 15. Sensor programming xxxx There is also a help window for identifying the Average values over time M(t) sensor in question. Sensor Connector / Measuring range Units Display cable / sensor Sensor voltage 0.00...20.00 Batt Frequency ZA 9909-AK 0... 25000 Freq Pulses ZA 9909-AK...
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Page 52: Sensor Configuration
15. Sensor programming Function Function channel Ref. channel 1 Ref. channel 2 Function parameters (Mb1) on channel 2, 3, or 4 Mb1 = channel 1 Differential (Mb1-Mb2) on channel 2, 3, 4 (Mb1) Mb1 = channel 1 Mb2=M0.0 Average value over Mb2, Mb1 on channel 2, 3, 4 (Mb1) Mb1 = channel 1 Mb2=M0.0... -
Page 53: Cycle Factor
15. Sensor programming highly complex and should only be considered if the user is fully aware of how they work and what effect they may have. The two 'special functions' menus can be accessed after sensor programming by means of key ... -
Page 54: Analog Output Start / End
15. Sensor programming To select a relay port Port: 20 Relais: Normally Open 0.5A To set variant 2 (assigned internally) 2: Assigned internally Controlling a measuring operation A limit value infringement can be used not only to report an alarm but also to control a measuring operation (see Manual 6.6.3). -
Page 55: Output Function
15. Sensor programming To enter the minimum sensor supply voltage U-Sensor Min 12.0 V <CLR> To disable voltage monitoring, to clear the value U-Sensor Min: ---- V 15.12.5 Output function If the current measured value of measuring point Mx.x is not actually needed but only the maximum, minimum, average, or alarm value, this function can be programmed as output function (see Manual 6.10.4). -
Page 56: Element Flags
15. Sensor programming 15.12.7 Element flags Element flags are available per measuring channel; these can be activated to implement sensor-specific extra functions (s. Man. 6.10.3) 3. Measuring bridge with switch for final-value simulation 4. Measuring channel, cyclic evaluation only 8. Analog output 4 to 20 mA (instead of 0 to 20 mA) On the ALMEMO ®... -
Page 57: Device Configuration
Time 12:34:56 Date:01.01.04 day, language, and illumination. The device Device designation: designation helps individually identify the device Ahlborn, Holzkirchen Language: English and facilitates its assignment in a network. In Illumination: Ø Duration: 20 s network operation the device address is indis-... -
Page 58: Interface, Device Address And Networking
16. Device configuration Display illumination ON Illumination: Ø To set the illumination duration (20 seconds to 10 minutes) press <SET> Duration: 20sec If display illumination is enabled, the following symbol appears in the status bar Illumination ON If display illumination has switched off temporarily, the following will light up. -
Page 59: Process Control
16. Device configuration 16.7 Process control As already described in Chapter 12, maximum and minimum values, limit value infringements, and analog outputs are acquired from standard sensors at the sampling rate and from D7 sensors at the scan cycle. All measuring channels can be output to a computer or saved to memory either simultaneously at this scan cycle or at more prolonged cyclic intervals at the output cycle. -
Page 60: Output Cycle
16. Device configuration Set scan cycle to minimum time <MIN> 00.001 Set scan cycle to scan time 00.500 <SCANT> Select output in scan cycle ▼ 00.002 s Activate output <ON> 00.002 s Select and activate save-to-memory at the scan cycle in the data logger func- tions (s. -
Page 61: Output Modules
17. OUTPUT MODULES The ALMEMO ® 202-S and ALMEMO ® OUTPUT MODULES measuring instrument has two output sockets, Socket: A1 A1 and A2; these can be used to output meas- ured values in analog or digital form or as an DC Data cable 0: RS232 alarm signal. - Page 62 17. Output modules First select the port <P> ▲ ▼ e.g. port 0, socket A2 (port address 20) Port: 20 This shows the element concerned Relays: Relay type, normally open (NO): Relay NO Relay type, normally closed (NC): Relaiy NC Relay type, changeover: Relaiy - changeover Relay addressing can be configured to the following variants s.
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Page 63: Analog Outputs
17. Output modules 3: Print the measured value 3: Print 4: Start / stop a meas. op., level-controlled 4: Start/Stop level-controlled 8: Set measured value to zero 8: Set meas. value to zero -5: Execute macro 5 (s. Man. 6.6.5) -5: Macro5 -6: Execute macro 6 -6: Macro6... - Page 64 17. Output modules The same output modes can be programmed as variants as with V5. 0: Measured value for the selected measuring channel 0: Selected channel M00 2: Measured value for a programmed channel 2: Assigned internally M01 8: Programmed analog output (see above) 8: Driven externally With V6 the analog value appears with the appropriate units.
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Page 65: Trouble-Shooting
18. TROUBLE-SHOOTING The ALMEMO 202-S and ALMEMO 204 measuring instrument can be config- ® ® ured and programmed in many different ways. It is suitable for connecting a wide variety of different sensors, other measuring instruments, alarm signaling devices, and peripheral equipment. Given these numerous possibilities the de- vice may in certain circumstances not behave quite as expected. - Page 66 18. Trouble-shooting Address all devices individually via the terminal using command ´Gxy´. Addressed device is OK if at least ´y CR LF´ is returned as echo. If transmission is still not possible, unplug the networked devices. Check all devices individually on the data cable to the computer. (see above) Check wiring...
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Page 67: Declaration Of Conformity
19. DECLARATION OF CONFORMITY... - Page 68 19. Declaration of conformity...
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Page 69: Annex
20. ANNEX 20.1 Technical data (s. Man. 2.3) Measuring inputs 2 / 4 ALMEMO ® sockets, suitable for ALMEMO flat connectors ® (only digital sensors DIGI, D6, D7 sensors) Measuring channels 2 primary channels, maximum 9 additional channels per input for double sensors and function channels Sensor power supply 6 / 9 / 12 V;... -
Page 70: Product Overview
20. Annex 20.2 Product overview Order no. Special measuring instrument ALMEMO ® 202-S for digital sensors 2 inputs, maximum 20 channels, 2 outputs, cascadable interface, 7 keys, LCD graphics display, real-time clock, data logger via plug-in memory MA 202S Special measuring instrument ALMEMO ®... -
Page 71: Index
20.3 Index Accessories ......70 Device configuration ....57 Action Max and Action Min ..54 Device designation ..... 57 Actions triggered by limit value Display ........22 infringement ....... 53 Dynamic pressure ...... 28 additional channels ....21 Element flags ......56 Analog output start / end .... - Page 72 20. Annex Monitor mode ......44 Scanning configuration ....43 Multi-point calibration ....52 Selecting the input channel ..47 networking ........58 Selecting the measuring range .. 50 Numbering measuring Sensor channels ....... 26 operations ........41 Sensor configuration ....52 saturation ......
- Page 73 Notes...
- Page 74 Notes 20. Annex...
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Page 75: Your Contact
0Your contact YOUR CONTACT AHLBORN Mess- und Regelungstechnik GmbH Eichenfeldstraße 1 83607 Holzkirchen Germany internet : http://www.ahlborn.com e-mail : amr@ahlborn.com... - Page 76 0Your contact Despite great care, incorrect information cannot be ruled out. Technical changes are reserved.
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