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Summary of Contents for Ahlborn ALMEMO 2450-1L
- Page 1 ____________________________ Operating instructions Universal measuring instrument ® ALMEMO 2450-1L V2.2 11.05.2010 www.ahlborn.com...
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Page 2: Operating Controls
1. Operating controls 1. OPERATING CONTROLS (1) Measuring inputs M0 M0 for a wide range of sensors M10 to M30 3 additional channels (2) LCD Function field (a) Function (b) Measuring point, 2nd meas. value (c) Units for 2nd measured value Main field (c) Units for 1st measured value (e) 1st measured value... -
Page 3: Table Of Contents
Contents 2. CONTENTS 1. OPERATING CONTROLS .................2 3. GENERAL ....................5 3.1 Warranty ....................5 3.2 Scope of delivery ................6 3.3 Waste disposal..................6 4. SAFETY INSTRUCTIONS................7 4.1 Special notes on use................8 4.2 Handling batteries / rechargeable batteries correctly......8 5. INTRODUCTION ..................9 5.1 Functions..................... - Page 4 2. Contents 14. APPENDIX ....................22 14.1 Technical data ................22 14.2 Product overview ................22 14.3 Index....................23 14.4 Your contact..................24 ALMEMO ® 2450-1L...
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Page 5: General
General 3. GENERAL Congratulations on your purchase of this new and innovative ALMEMO ® measuring instrument. Thanks to the patented ALMEMO ® connector the device configures itself automatically; its operation should be fairly straight- forward. The device can, however, be used with such a wide range of sensors and peripherals and offers many different special functions. -
Page 6: Scope Of Delivery
3. General 3.2 Scope of delivery When you unpack the device check carefully for any signs of transport damage and ensure that delivery is complete. Measuring instrument ALMEMO ® 2450-1L with 3 AA alkaline batteries These operating instructions ALMEMO ® Manual CD with the AMR-Control software and various useful accessories In the event of transport damage please retain the packaging material and in-... -
Page 7: Safety Instructions
Safety instructions 4. SAFETY INSTRUCTIONS DANGER Danger to life and limb, risk of damage to equipment Read the instructions carefully before starting to operate the device. Please ensure that you comply with all general safety ad- vice and the special safety instructions included in other chapters. -
Page 8: Special Notes On Use
4. Safety instructions DANGER Warning - explosive atmospheres or substances In the vicinity of various fuels or chemicals there is a risk of ex- plosion. Do not use the device in the close vicinity of blasting work or filling stations! 4.1 Special notes on use If the device is brought into the work-room from a cold environment •... -
Page 9: Introduction
5. INTRODUCTION ® The ALMEMO 2450-1L is a new member in our family of unique measuring ® devices - all equipped with Ahlborn's patented ALMEMO connector system. ® The intelligent ALMEMO connector offers decisive advantages when connect- ing sensors and peripherals because all parameters are stored in an EEPROM located on the connector itself;... -
Page 10: Measuring Operations
5. Introduction ® sensor types to any ALMEMO measuring instrument and to change sensors without the need for any extra settings. Units The 2-character units display can be adapted for each measuring channel so that both the display and the printout always indicate the correct units, e.g. when a transmitter is connected. -
Page 11: Initial Commissioning
Functions Maximum and minimum values For each measuring operation the maximum value and minimum value are ac- quired and saved to memory. These values can then be displayed, output, or deleted from memory. Measured value memory A measured value in the display can be saved by simply pressing a key. 6. -
Page 12: Switching On / Off, Reinitialization
7. Power supply 7.3 Switching ON / OFF, reinitialization To switch the device ON briefly press and release the key (3) in the OFFr middle of the keypad; to switch the device, OFF press and hold down the key . After the device is switched off all saved values and settings are re- OFFr tained intact;... -
Page 13: Measuring Inputs And Additional Channels
Measuring inputs and additional channels 8.2 Measuring inputs and additional channels ® The ALMEMO 2450-1L measuring instrument has one input socket (1) to ® which initially measuring channel M0 is assigned. ALMEMO sensors can, however, if necessary, provide up to four channels. The additional channels can be used in particular for humidity sensors with four measuring variables (temperature / humidity / dew point / mixture ratio) or for function channels. -
Page 14: Display And Keypad
9. Display and keypad 9. DISPLAY AND KEYPAD 9.1 Display ® The display (2) on the ALMEMO 2450-1L measuring instrument is a 2-row LCD arrangement; the main field comprises 5x 7-segment digits (e) plus 2x 16- segment digits (d) for depicting the measured value;,the function field com- prises 41/2x 7-segment digits (b) for depicting various measuring functions (a);... -
Page 15: Keypad
Display Special operating states and faults Display segment test : runs automatically after switch ON Supply voltage Display after segment test Under 3.8 V : LOBAT arrow lights up Relative measuring with respect to a reference value : REL arrow lights up Checksum error in CALEr device calibration :... -
Page 16: Measuring Operations
9. Display and keypad Displaying the maximum value : (see Section 10.2) To delete press and hold down Displaying the minimum value : (see Section 10.2) To delete press and hold down Zero-setting the measured value : (see Section 10.4) To delete press and hold down Saving the measured value : (see Section 10.3) Displaying the battery voltage :... -
Page 17: Measuring Ranges
Measured value 10.1.2 Measuring ranges With each channel switchover or sensor breakage the abbreviation for the measuring range appears in the display. For identification purposes the follow- ing table lists all possible measuring ranges supported by this device. Transducer Sensor / con- Measuring range Units Abbre- nector viation... -
Page 18: Double Display
10. Measuring operations Transducer Sensor / con- Measuring range Units Abbre- nector viation Functions channels: Maximum value of channel Mb1 any Minimum value of channel Mb1 Alrn Alarm value of channel Mb1 MESS Measured value of Mb1 Cold junction temperature °C TC=Temperature compensation 10.1.3 Double display... -
Page 19: Relative Measuring
Relative measuring 10.4 Relative measuring One very useful function is to zero the meas- ured value at certain locations or at certain times as a reference value in order then to ob- serve only the subsequent deviations. This function is independent of the locking status and does not modify the programming para- meters in the connector. -
Page 20: Automatic Switch Off
11. Device configuration 11.1 Automatic switch OFF In menu item ´AOFF´ an automatic device switch OFF time can be programmed in minutes; this will help save the batteries. This automatic device switch OFF will not take effect if the setting is ´- -´ or if a mains adapter or an interface cable is connected. -
Page 21: Declaration Of Conformity
Holzkirchen with error description. 13. DECLARATION OF CONFORMITY Ahlborn Mess- und Regelungstechnik GmbH declares herewith that measuring instrument ALMEMO ® 2590 carries the CE label and complies in full with the requirements of EU directives relating to low voltage and to electromagnetic compatibility (EMC) (89/336/EWG). -
Page 22: Appendix
-20 to +60 °C) Ambient relative humidity : 10 to 90 % rH (non-condensing) 14.2 Product overview Universal measuring instrument ALMEMO 2450-1L Order no. 1 measuring input , 2-row LCD, 7 keys, battery supply MA 2450-1L Options Measuring ranges for temperature display of 10 refrigerants... -
Page 23: Index
Index 14.3 Index additional channels AOFF 11.1 Automatic switch OFF 11.1 Battery operation Connecting the transducers Data buffering Declaration of conformity Device configuration Device locking 11.2 Display Double display 10.1.3 faults Function field Functions Functions channels 10.1.2 Housing 14.1 Initial commissioning Introduction keypad Keypad... -
Page 24: Your Contact
To switch OFF To switch ON Transducers Trouble-shooting Warranty Waste disposal 14.4 Your contact AHLBORN Mess- und Regelungstechnik GmbH Eichenfeldstraße 1 83607 Holzkirchen Germany internet : http://www.ahlborn.com e-mail : amr@ahlborn.com Even the greatest possible care cannot exclude the possibility of inaccuracies.
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