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Summary of Contents for Ahlborn ALMEMO 8036-9
- Page 1 ____________________________ Operating instructions ALMEMO 8036-9 ® High-precision measured data acquisition module for Pt100 sensors and psychrometers V1.2 11.09.2015 www.ahlborn.com...
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Page 2: Operating Controls
1. OPERATING CONTROLS 1. OPERATING CONTROLS (1) Code switches Device address 00 to 99 (2) Key ON/OFF, START/STOP Power ON START Start the measuring operation STOP Stop the measuring operation Power OFF, hold key pressed down (3) Status LEDs Device switched ON START Meas. -
Page 3: Table Of Contents
Table of contents 2. TABLE OF CONTENTS 1. OPERATING CONTROLS................2 3. GENERAL....................5 3.1 Warranty....................5 3.2 Standard delivery................5 3.3 Waste disposal...................6 4. SAFETY INSTRUCTIONS................6 4.1 Special notes on use................7 5. INTRODUCTION..................8 5.1 Measuring instrument................8 5.2 Measuring humidity, basic principles..........8 5.3 Psychrometers...................9 5.4 Sensor programming.................9 5.5 Measuring operation................10 6. - Page 4 2. Table of contents 12. ELECTROMAGNETIC COMPATIBILITY..........28 13. ANNEX...................... 29 13.1 Technical data.................29 13.2 Product overview................30 13.3 Index....................31 13.4 Your contact partners..............33 ALMEMO 8036-9 ®...
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Page 5: General
GENERAL 3. GENERAL We should like to congratulate you on your purchase of this new and innovati- ve measured data acquisition module; this outstanding instrument provides high-precision measurements from Pt100 sensors at a resolution of 0.001 K; it is thus also ideally suitable for highly accurate humidity measurement using Pt100 psychrometers. -
Page 6: Waste Disposal
3. GENERAL 3.3 Waste disposal The pictogram showing a waste bin crossed through means that the product is subject to European Union regu- lations covering segregated waste disposal. This applies both to the product itself and to any accesso- ries marked with the same symbol. Disposal of any such item as unsorted domestic waste is strictly forbidden. -
Page 7: Special Notes On Use
SAFETY INSTRUCTIONS DANGER Risk of fatal injury through exposure to dangerously high voltage Such risks may occur in the following circumstances: Use of the device with an unsuitable power supply and / or • in conjunction with unsuitable peripheral equipment Damage caused by electrostatic discharge or lightning •... -
Page 8: Introduction
5. INTRODUCTION 5. INTRODUCTION 5.1 Measuring instrument Reference measuring instrument ALMEMO 8036-9 belongs to the new X6 ® series of high-precision devices providing the highest resolution and linearity available. It has nine electrically isolated measuring inputs for Pt100 sensors with a measuring range of -200 to +670 °C and a resolution of 0.001 K; this is without any linearization errors, because the temperature values are exactly calculated using the appropriate formulae. -
Page 9: Psychrometers
Measuring humidity, basic principles Relative humidity U (RH) is the ratio of the water vapor’s partial pressure e´ (VP) to the saturation vapor pressure ew´ (SVP) in a mixture of water va- por and air at air temperature t (TT). The temperature at which saturation oc- curs (VP=SVP, RH=100%) is known as the dewpoint temperature t (DT). -
Page 10: Measuring Operation
5. INTRODUCTION 5.5 Measuring operation For the nine temperature sensors there are altogether up to 36 measuring channels available; i.e. psychrometers can also be evaluated with three humi- dity variables . All activated measuring points are continuously scanned at a rate of 1.25 mops (measuring operations per second). -
Page 11: Putting Into Service
Measuring operation refer specifically to your company or to a specific application. Data logger The device can, by fitting an external memory connector with a micro-SD me- mory card, be upgraded to a high-capacity data logger. Using this external me- mory (available as an accessory) files can be read out very quickly via any standard card reader. -
Page 12: Power Supply
6. Putting into service Start measuring operation by actuating the 'START' button or pressing the START/ STOP key. see Manual, Section 6.6 Stop measuring operation by actuating the 'STOP' button or pressing the START/ STOP key. <Close file - terminal - log> Select file e.g. -
Page 13: Switching On / Off
External DC voltage supply (ZB 5090-EK). 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 an electrically isolated supply cable must be used (ZB 3090-UK). It will then be possible to use the measuring instrument in a 12-volt or 24-volt on- board supply system. -
Page 14: Stationary High-Precision Psychrometer Fpa 836-3P3
8. Connecting the sensors system ensures that sensors and output modules can only be connected to the correct sockets. All ALMEMO ® plugs incorporate two snap-lock levers; these snap into position as soon as the plug is inserted into the socket, thus preven- ting unintended disconnection if the cable is pulled accidentally. -
Page 15: Measuring Sockets And Measuring Channels
Stationary high-precision psychrometer FPA 836-3P3 advisory notes: 1. After the fan starts up it will take approx. 20 to 30 seconds before the wet temperature sensor is sufficiently cooled. Only after this period will humidity values be stable. 2. Ensure that the humidity sensor is always sufficiently moistened. If you are unsure whether there is sufficient moisture carry out a visual inspection of both the cotton sheath and the wick itself. -
Page 16: Potential Separation
8. Connecting the sensors These psychrometers are supplied with the following quantities and ranges pre- programmed: Pt100 psychrometer Measuring instrument FPA836-3P3 8036-9 P2td P2Uw 1. P314 HT P314 TT Mx+1 8.4 Potential separation When organizing a properly functioning measuring setup it is very important to ensure that no equalizing current can flow between sensors, power supply, and peripherals. -
Page 17: Operation And Configuration
Operation and configuration 9. OPERATION AND CONFIGURATION High-precision data acquisition module ALMEMO ® 8036-9 has only a few ope- rating controls; it is operated mainly via a PC. 9.1 Combination key The first function of the one and only key ON/OFF - START/STOP (2) has al- ready been described in Section 6.5. -
Page 18: Data Communications
9. Operation and configuration Example: Module address 01 In network operation consecutive numbers between 01 and 99 should be used; this ensures that device 00 is not addressed unne- cessarily in the event of interruption to the power supply. 9.4 Data communications For data retrieval and programming we provide a comprehensive ALMEMO ®... -
Page 19: Programming
Programming 9.5 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. Howe- ver, with humidity sensors it is necessary sometimes to program other humidity ranges than those provided as standard. -
Page 20: Correction By Modifying The Pt100 Coefficients
9. Operation and configuration ber, the serial number, the date of the next calibration, and the calibration inter- val. In networked systems the calibration intervals can thus be monitored auto- matically. 9.5.3 Correction by modifying the Pt100 coefficients: When calibrating a Pt100 sensor in a calibration laboratory any deviation detected can also be managed by adjusting the sensor on the basis of the four real coefficients in the Van Dusen equation. -
Page 21: Measured Data Acquisition
Measured data acquisition 10. MEASURED DATA ACQUISITION Measured data acquisition can be performed in basically two ways: 1. Perform measuring operation online; data is transferred to the PC immedia- tely (no device-internal memory is required). 2. Perform measuring operation offline; data is first saved to an external me- mory connector with a micro SD card and then transferred to the PC later. -
Page 22: Starting / Stopping A Measuring Operation
10. Measured data acquisition On the ALMEMO device itself only the last file can be read. ® Selective data output according to date and time-of-day or by number code is not supported. The memory connector with the memory card can be connected at socket A2; it will be recognized automatically. -
Page 23: Reading Out Measured Data
Offline measurement 1. Enter a cycle lasting at least two minutes. 2. Activate saving to memory in this cycle. 3. Switch sleep mode on. 4. Start measuring operation as normal; the device should then switch off au- tomatically; as a check the LED 'ON' (3) should flash rhythmically on and off. 6. -
Page 24: Trouble-Shooting
11. Trouble-shooting 11. TROUBLE-SHOOTING The ALMEMO ® 8036-9 measured data acquisition module can be configured and programmed in many different ways. It is suitable for connecting a wide variety of different sensors, additional measuring instruments, and peripheral equipment. Given these numerous possibilities the device may in certain cir- cumstances not behave quite as expected. -
Page 25: Electromagnetic Compatibility
/ or print out a comprehensive 'function test' in the device list or termi- nal mode. 12. ELECTROMAGNETIC COMPATIBILITY Ahlborn Mess- und Regelungstechnik GmbH declares herewith that measuring instrument ALMEMO 8036-9 carries the CE label and complies in full with the ®... -
Page 26: Annex
13. Annex 13. ANNEX 13.1 Technical data Measuring inputs Nine ALMEMO ® sockets for high-precision Pt100 sensors and Pt100 psychrometers FPA836-3P3 Measuring channels Nine primary channels, electrically isolated, maximum 31 additional channels for humidity variables and function channels Electrical isolation Semiconductor relay (50 V) A/D converter Delta - sigma 24 bit, 1.25 mops, amplification 5... -
Page 27: Product Overview
Product overview 13.2 Product overview Order no. High-precision X6 Pt100 measured data acquisition module ALMEMO 8036-9 with atmospheric pressure sensor ® Nine inputs, maximum 40 channels, two outputs, cascadable interface One key, real-time clock, in eight-DU housing, mains unit 12 V, 1 A MA 8036-9 Sensors ALMEMO... -
Page 28: Index
13. Annex 13.3 Index Accessories 13.2 ALMEMO ® -Control Changing the wick Code switches Combination key Connecting the sensors Data buffering Data communications DC supply socket device address Device-internal channelse Electromagnetic compatibility External DC voltage supply file name 10.2.1 Fill the water reservoir Ground socket Interface INTRODUCTION... - Page 29 Index Reading out measured data 10.2.4 SAFETY INSTRUCTIONS SD memory card 10.2.1 Sensor programming Sensors 13.2 Sleep mode 10.2.3 socket DC Software Standard delivery Starting / stopping a measuring operation 10.2.2 Stationary high-precision psychrometer FPA 836-3P3 Status LEDs switch the device OFF switch the device ON Switching ON / OFF Technical data...
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Page 30: Your Contact Partners
13. Annex 13.4 Your contact partners Ahlborn Mess- und Regelungstechnik GmbH, Eichenfeldstraße 1-3, 83607 Holzkirchen, Germany Tel. +49(0)8024/3007-0, Fax +49(0)8024/300710 Internet: http://www.ahlborn.com, email: 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.
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