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Summary of Contents for Ahlborn Almemo V5 8990-1
- Page 1 Operating Instructions Intelligent Transmitter ® ALMEMO 8990-1 V1.0 03.09.1999 AHLBORN Mess- und Regelungstechnik GmbH Eichenfeldstraße 1-3 · D-83607 Holzkirchen Tel.+49(0)8024/30070 · Fax +49(0)8024/300710...
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Page 2: Table Of Contents
Table of Contents Operating Instructions Intelligent Transmitter ® ALMEMO 8990-1 ® For Reference with the ALMEMO Manual Table of Contents Page Introduction Function Range Operating Controls Initial Operation Power Supply Plug-In Power Supply Unit DC Voltage Supply Data Buffer Sensor Voltage Supply Connection of the Transducers Transducers Measuring Inputs and Additional Channels... -
Page 3: Introduction
® 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 4 Functions Measuring Ranges There are corresponding measuring ranges for sensors with a non-linear characteristic such as 10 thermocouple types, Ntc and Pt100 sensors, infrared sensors, and flow sensors (rotating vanes, thermoanemometers, pitot tubes). Humidity sensors are available with function channels that also calculate humidity data such as dew point, mixture ratio, vapour pressure and enthalpy.
- Page 5 Functions Limit Values and Alarm Two limit values (1 Max and 1 Min) can be set for each measuring channel. If a limit value is exceeded a signal lamp will be on and the internal alarm contact responds. The alarm contact can also be individually allocated to the limit values.
- Page 6 Functions PROCESS FLOW PROGRAMMING A cyclic measuring point scan with a time-based process flow control is required to register the measuring data of all measuring channels. If only one transmitter is available, the measuring point scans can be performed with an own time control.
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Page 7: Operating Controls
Operating Controls Output All data logs and all stored measured values and programmed parameters can be provided as output to any peripheral equipment via interface. Interface cables for RS232 or Centronics interfaces are available. An electrically isolated RS485 interface can be integrated as an option. The output of measuring data can be selected in list format, columns or spreadsheet format. -
Page 8: Plug-In Power Supply Unit
Operating Controls 1.2 Operating Controls 1 1 1 0 9 A LA R M R S 4 8 5 2 0 m A Ö + 1 2 G N D ® 8 9 9 0 -1 POWER SUPPLY (1) miniature socket for 12V plug-in mains adapter ZB 3090-NA (2) 12V + option U: terminal connector 10 to 36 V DC electr. -
Page 9: Initial Operation
Initial Operation 2. INITIAL OPERATION 1. Connect the transducer to the socket M (11), see 4. 2. For power supply connect the mains adapter to socket 12 V (1), see 3. 3. Connect the recording device to the analogue output (6). 4. -
Page 10: Connection Of The Transducers
Connection of the Transducers 4. CONNECTION OF THE TRANSDUCERS ® ® Any ALMEMO sensors can be easily connected to the ALMEMO input socket M (11). For connecting existing sensors with open ends it is only necessary to ® connect a corresponding ALMEMO connector. -
Page 11: Measuring Inputs And Additional Channels
Transducers 4.2 Measuring Inputs and Additional Channels ® The transmitter ALMEMO 8990-1 has one input socket (11) with measuring ® channel M0. However, ALMEMO sensors can, if required, provide up to 4 channels so that a total of 4 channels are available. The additional channels can be especially used with humidity sensors with 4 measuring variables (temperature/humidity/dew point/mixture ratio) or used for function channels. -
Page 12: Analogue Output
Analogue Output 5. ANALOGUE OUTPUT For analogue data recording of the selected measuring point three options are available, as follows: 1. Use of an integrated electrically isolated analogue output, which is available as option Rx (see manual 5.1.3). Option Output Signal Slope (Gain) OA 8990-R1 -1.2500 V ... -
Page 13: Data Acquisition
Data Acquisition 6. DATA ACQUISITION ® The transmitter ALMEMO 8990-1 provides the following options for the acquisition of measuring data: 1. Continuous measurement of a selectable measuring point, see manual 6.4. 2. Output of measuring data to the analogue output see manual 5. and 5.1.1. 3. -
Page 14: Cyclic Measuring Point Scan Of One Device
Data Acquisition The programming of the sensors and the entire transmitter configuration is performed via the serial interface, preferably with using the configuration software AMR-Control or with a terminal (PC) (see man. section 6). 6.2 Cyclic Measuring Point Scan of One Device If only one transmitter is present it can, via print cycle and measuring cycle, independently perform automatic measuring point scans with an own time control and it can output the data via interface (see man. -
Page 15: Data Acquisition Via Software
Data Acquisition 6.4 Data Acquisition via Software Alternatively, the transmitters can be operated, individually or networked with other modules, on a computer with data acquisition software. Two software packages are available for the cyclic addressing of the modules and scanning of the data: 1. -
Page 16: Troubleshooting
Troubleshooting 7. TROUBLESHOOTING ® The transmitter ALMEMO 8990-1 can be configured and programmed in many different ways. It allows for a connection of many different sensors, additional measuring instruments, alarm signalisers and peripheral devices. Therefore, it is possible that, under certain conditions, it does not perform as the user would expect. -
Page 17: Electromagnetic Compatibility
Electromagnetic Compatibility Test the data transmission by using a terminal (AMR-Control, WIN-Control, DATA-Control, WINDOWS Terminal): Check module address and code switch position on the PCB (s. 6.3), Address the device with its device number Gxy (see manual 6.2.1), query the programming by P15 (see manual 6.2.3). Error: Data transmission within network does not function Remedy: Check that all modules are set to different addresses,... -
Page 18: Appendix
Appendix Technical Data (see also manual section 2.2) Measuring Inputs: ® ® 1 ALMEMO socket for ALMEMO flat connectors Measuring Channels: 1 primary channel, max. 3 additional channels for double sensors and function channels Sensor Voltage Supply: with mains adapter 12V, 100mA at max. Equipment: Time and Date: software clock, not buffered... -
Page 19: Your Contacts
Appendix Your Contacts Ahlborn Mess- und Regelungstechnik GmbH, Eichenfeldstraße 1-3, D-83607 Holzkirchen, Tel. +49(0)8024/3007-0, Fax +49(0)8024/300710 Internet: http://www.ahlborn.com, email: amr@ahlborn.com Customer Service / Hotline Florian Plessner, Tel. 08024/3007-38 ALMEMO 8990-1... - Page 20 Appendix ALMEMO 8990-1...
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