Summary of Contents for Almemo 2190-2
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Page 1: Operating Instructions
Operating Instructions Multimeter ® ALMEMO 2190-2 V1.0 31.05.1999 AHLBORN Mess- und Regelungstechnik GmbH Eichenfeldstraße 1-3 · D-83607 Holzkirchen Tel. +49(0)8024/30070 · Fax +49(0)8024/300710... -
Page 2: Table Of Contents
Table of Contents Operating Instructions Multimeter ® ALMEMO 2190-2 ® For Reference with the ALMEMO Manual Table of Contents Page INTRODUCTION Function Range Operating Controls INITIAL OPERATION POWER SUPPLY Operation with Battery and Rechargeable Battery External Power Supply Switch On and Off... - Page 3 Measured Value and Selection of a Measuring Point Maximum and Minimum Values Memory for Momentary Values Differential Measurement and Correction of Measured Values Continuous Measuring Point Scan TROUBLESHOOTING ELECTROMAGNETIC COMPATIBILITY APPENDIX Technical Data Product Overview Your Contacts ALMEMO 2190-2...
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Page 4: Multimeter Almemo ® 2190-2
The multimeter ALMEMO 2190-2 is an instrument from a 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 connection of sensors and peripherals as all parameters are stored in an EEPROM within the connector. -
Page 5: Function Range
Furthermore, there are adapter connectors with an own microcontroller for digital signals and for measuring frequencies ® and pulses. This way, nearly all sensors can be connected to any ALMEMO measuring instrument and are interchangeable without requiring any settings. Dimension ®... - Page 6 External Sensor Programming All sensor programming is supported when they have been programmed in the ® factory or by using other ALMEMO devices. Dimension The 2-digit dimension can be altered for each measuring channel so that the display will always indicate the correct dimension, for example when a transmitter is connected.
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Page 7: Operating Controls
1.2 Operating Controls (1) ON/OFF Switch ( 2 ) ( 3 ) Down: (2) Meas. Input M1 for all ALMEMO sensors M2 to M4 add. channels (3) Output Socket OUTPUT Analogue output (ZA 1601-RK) (4) DC Socket Mains adapter (ZB 2290-NA, 12V, 200mA) Connect. -
Page 8: Initial Operation
5. Use the key HOLD to perform a freezing of the measured value, see 7.3. 6. Differential measurement related to a reference value or sensor adjustment with key CLEAR, see 7.4. 7. For evaluating the measurement: use the keys MAX and MIN to recall the max and min values. ALMEMO 2190-2... -
Page 9: Power Supply
The battery should be immediately removed. Leakage of the battery and damage to the instrument can then be avoided. The actual battery voltage can be accurately monitored with an own measuring channel Ubat and the remaining battery life can be estimated accordingly. ALMEMO 2190-2... -
Page 10: External Power Supply
(10...36V DC) is required. It allows to operate the measuring instrument with 12V or 24V mains supply. If a battery is used in addition it will take over the power supply if the voltage drops under 9V. ALMEMO 2190-2... -
Page 11: Switch On And Off
A mechanical coding ensures that sensor and output modules ® can only be connected to the correct sockets. Furthermore, each ALMEMO connector has two locking levers that snap in when the insertion into the socket is established and that prevent a disconnection caused by pulling the cable. - Page 12 Connection of the Transducers chann. 4 chann. 3 chann. 2 chann. 1 OUTPUT 2190-2 Combined sensors within one connector are electrically connected to each other and must, therefore, be operated in isolation. The voltage applied to the measuring inputs must not ± exceed 5V (between B,C,D and A or - respectively).
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Page 13: Display
Display 5. DISPLAY ® The display (5) of the measuring instrument ALMEMO 2190-2 consists of an LCD module with six 7-segment digits, two 16-segment digits, and a battery symbol and seven arrows for indicating the operating status. (CONT) CORR HOLD... -
Page 14: Sensor Programming
As all ALMEMO instruments contain the whole sensor programming stored in ® ® the ALMEMO connector, it is possible to connect all ALMEMO sensors with ® no programming being required. The instrument ALMEMO 2190-2 does not offer any programming facility. To connect existing sensors it is necessary to ®... - Page 15 Average value over time A[n] Average value over junctions S[n] Sum over junctions S[t] Total number of pulses ZA 9909-AK2 0... 65000 S[P] Pulses/print cycle ZA 9909-AK2 0... 65000 Alrm Alarm value TC=Temperature Compensation, PC=Atmospheric Pressure Compensation ALMEMO 2190-2...
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Page 16: Dimension
7. MEASUREMENT The instrument ALMEMO ® 2190-2 provides the following options for the acquisition of measuring data: 1. Continuous measurement of a selectable measuring point, see man. 6.4 Output of measuring data to the analogue output, see manual 5.1.1. -
Page 17: Maximum And Minimum Values
Function MAX VALUE CORR HOLD Selection of max value with key: Function MIN VALUE CORR HOLD Selection of min value with key: LÖSCHEN Clear max/min values with key: MESSEN Return to the meas. value with key: ALMEMO 2190-2... -
Page 18: Memory For Momentary Values
The reference value will only be cleared when the key MEAS. is operated again in the function MEASUREMENT or when the instrument is being switched off. In this case the max and min values will also be cleared and the arrow ´CORR´ will stop flashing. ALMEMO 2190-2... -
Page 19: Continuous Measuring Point Scan
0.00 but pH 7.00 after the adjustment. ® Unlike other ALMEMO instruments, the correction values will not be stored in an EEPROM of the sensor but will be lost when switching over in function MEASUREMENT or when switching the instrument off. -
Page 20: Troubleshooting
8. TROUBLESHOOTING ® The measuring instrument ALMEMO 2190-2 allows for a connection of many different sensors 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 expect. -
Page 21: Electromagnetic Compatibility
Electromagnetic Compatibility 9. ELECTROMAGNETIC COMPATIBILITY ® The measuring instrument ALMEMO 2190-2 meets the electromagnetic compatibility (EMC) safety requirements specified in the relevant CE directive issued by the council for the alignment of legal regulations of the member states (89/336/EWG). The following standards have been applied for the evaluation of the product:... -
Page 22: Appendix
Appendix Technical Data (see also manual 2.2) Measuring Inputs: ® ® 1 ALMEMO socket for ALMEMO flat connector Measuring channels: 1 primary channel, 3 add. chann. f. double sensors and function chann. Sensor voltage supply: battery: 7...9V, max. 100mA mains adapter: approx. 12V, max. 100mA Output: ®... -
Page 23: Your Contacts
Appendix Your Contacts ALMEMO 2190-2... - Page 24 Appendix ALMEMO 2190-2...
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