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Summary of Contents for Ahlborn ALMEMO 2390-3
- Page 1 Operating instructions Universal measuring instrument ® ALMEMO 2390-3 V2.0 11.12.2003 ALMEMO 2390-3...
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Page 2: Table Of Contents
Table of contents Operating instruction Universal Measuring Instrument ® ALMEMO 2390-3 ® With supplementary reference to the ALMEMO -Manual Table of contents Page INTRODUCTION Functions Operating controls PUTTING INTO SERVICE POWER SUPPLY Battery / rechargeable battery operation External voltage supply Switching ON and OFF CONNECTING THE SENSORS Sensors... - Page 3 Table of contents TROUBLE-SHOOTING ELECTROMAGNETIC COMPATIBILITY APPENDICES Technical data Product overview Your contact partners ALMEMO 2390-3...
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Page 4: Introduction
® unique product family - all equipped with the ALMEMO connector system, pa- tented by Ahlborn Mess- und Regelungstechnik GmbH. The intelligent ALME- ® connector offers decisive advantages when connecting sensors and peri- pherals because all parameters are stored in an EEPROM on the connector it- self;... - Page 5 Introduction SENSOR PROGRAMMING The measuring channels are automatically and completely programmed by the ® ALMEMO sensor connectors. Programming can, however, be modified or supplemented, as and when necessary, via the interface. Measuring ranges For all sensors with a non-linear characteristic, e.g. 10 thermocouple types, Ntc and Pt100 sensors, infrared sensors, and flow sensors (rotating vanes, ther- moanemometers, Pitot tubes), the appropriate measuring ranges are available.
- Page 6 Introduction Scaling The corrected measured value on each measuring channel can also be further scaled in terms of zero point and slope (gain) - using the base value and factor. The decimal point position can be set with the exponent. Limit values and alarm Per measuring channel two limit values can be set (1 maximum and 1 mini- mum).
- Page 7 Introduction Differential measurement It is possible, by setting the measured value to zero, to perform pseudo diffe- rential measurements with respect to a reference value; with two sensors and the same measured variables genuine differential measuring operations can be performed. PROCESS FLOW PROGRAMMING To digitally record the measured values of all connected sensors a cyclic mea- suring point scan using data acquisition software or an internal time-based...
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Page 8: Operating Controls
Operating controls 1.2 Operating controls (1) ON/OFF switch up : ( 2 ) ( 3 ) down : (2) Measuring inputs M0, M1, M2 ® M0, M1 for all ALMEMO sensors M2 Function channel, difference M10 - M32 Additional channels (3) Output socket A1 Analog output (ZA 1601-RK) V24 interface (ZA1909-DK5/L) -
Page 9: Putting Into Service
Putting into service 2. PUTTING INTO SERVICE 1. Connect transducer to socket M0 (2); see 4. 2. Provide power supply via 9-volt battery or mains adapter; see 3.1, 3.2. 3. To switch on, push the slide switch (1) located on the left side of the device upwards;... -
Page 10: Power Supply
Power supply 3. POWER SUPPLY As power supply there are the following possibilities : 9-volt batteries IEC 6 F22 ZB 2000-B9 9-volt rechargeable battery pack, with charger integrated ZB 2000-A9/-LS mains adapter 12 V / 200 mA ZB 2290-NA external power supply cable, 10 to 36 V DC, elect. isol. ZB 2290-UK Our product spectrum includes all the appropriate accessories. -
Page 11: External Voltage Supply
Power supply Spent batteries are special waste and must be disposed of in an environmentally accep- table way. Take spent batteries back to your dealer or dispose of them in your local bat- tery collection container ! Rechargeable battery operation: Instead of the standard batteries you can use rechargeable battery packs. -
Page 12: Connecting The Sensors
Connecting the sensors 4. CONNECTING THE SENSORS ® ® Any ALMEMO sensors can be connected to ALMEMO input sockets M0 and M1 (2). To connect your own existing sensors you simply need the appropriate ® ALMEMO connector. 4.1 Sensors ® The ALMEMO Manual includes detailed descriptions of the comprehensive ®... -
Page 13: Measuring Inputs And Additional Channels
Connecting the sensors The other channels can be programmed via the interface optionally with mea- suring ranges ‘U-BAT’ (Battery voltage), ‘VC’ (cold junction compensation), or other function channels; (see Manual, Section 6.3.4). On the measuring instrument this gives the following channel assignment: continuous sequencing numbered in decimal form (default) sensors... -
Page 14: Display
Display 5. DISPLAY ® The display (5) on measuring instrument ALMEMO 2390-3 comprises an LCD with six 7-segment digits, two 16-segment characters, a battery symbol, and arrows to indicate the operating status. CORR HOLD START COM ALRM Measured value display 2 3.4 °... -
Page 15: Sensor Programming
Sensor programming 6. SENSOR PROGRAMMING ® Since on ALMEMO devices all sensor programming is stored in the ALME- ® ® connector, you can connect any ALMEMO sensor without needing to re- ® program. To connect certain sensors you can even order ALMEMO connec- tors that have already been appropriately programmed. - Page 16 Sensor programming Sensors Sensor/connector Meas. range Units Display diGi Digitale interface ZA 9919-AKxx -65000... +65000 °C Ir 1 Infrared 1 FI A628-1/5 0.0... +200.0 °C Ir 4 Infrared 4 FI A628-4 -30.0... +100.0 °C Ir 6 Infrared 6 FI A628-6 0.0...
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Page 17: Units
Measuring operation 6.2 Units The units are shown after the measured value as two 16-segment characters. Depending on the programming (see Manual, Section 6.3.5) units other than the standard units can be stipulated per measuring range; (see Man. Sec. 6.1). For degrees Fahrenheit°F the temperature value is converted from C or F, cold junction com-... -
Page 18: Maximum And Minimum Values
Measuring operation CORR Display of the meas. range: If the actual measured value changes as a result of programmed scaling or correction values (see Manual, Section 6.3.10/11), then the ´CORR´ arrow lights up in the display. 7.2 Maximum and minimum values From the continuous measured values per measuring point the highest and the lowest values are determined and stored for each. -
Page 19: Reference Measurement And Correction Of Measured Values
Measuring operation 7.4 Reference measurement and correction of measured values In the MEASURE function by pressing the CLEAR key you can set the current measured value temporarily to zero (if the channel is locked at level ? 5). The current measured value is saved as reference value and the difference with re- spect to this reference value is displayed;... -
Page 20: Differential Measurement
Measuring operation To perform zero-point adjustment the measured value must first be physical- ly set to zero, i.e. : Temperature sensors must be placed in icy water. pH probes must be immersed in a buffer solution pH 7.0. Conductivity probes must be withdrawn from the liquid and dried. probes for water must be held in a zero solution. -
Page 21: Trouble-Shooting
Trouble-shooting 8. TROUBLE-SHOOTING ® Measuring instrument ALMEMO 2390-3 can have a great many different sen- sors and peripherals connected to it. Given these numerous possibilities the device may in certain circumstances not behave quite as expected. The cause of such unexpected behavior is only very rarely a device defect; more usually it is incorrect operation by the user, an incorrect setting, or incorrect cabling. -
Page 22: Electromagnetic Compatibility
Electromagnetic cmpatibility 9. ELECTROMAGNETIC COMPATIBILITY ® ALMEMO measuring instrument 2390-3 complies in full with the safety requi- rements specified in the EU directive on the approximation of Member States’ laws relating to electromagnetic compatibility (EMC) (89/336/EEC). The following standards have been applied in evaluating the product : IEC 61326:1997+A1:1998+A2:2000 IEC 61000-6-3:1996 IEC 61000-6-1:1997... -
Page 23: Appendices
Appendix Technical data (see also Manual, Section 2.2) ® ® Measuring inputs: two ALMEMO socket for ALMEMO sensors Channels : 4 channels / sensors maximum (measuring and function channels, depending on sensor type) 4 function channels in device Sensor power supply : Battery : 7 to 9 V, max. -
Page 24: Your Contact Partners
Appendix Your contact partners ALMEMO 2390-3...
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