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General  

3. GENERAL 

Congratulations   on   your   purchase   of   this   new   and   innovative   ALMEMO

®

measuring instrument. Thanks to the patented ALMEMO

®

 connector the de-

vice configures itself automatically; its operation should be fairly straightfor-
ward. The device can, however, be used with such a wide range of sensors
and peripherals and offers many different special functions. You are advised
therefore  to properly  familiarize  yourself  with  the  way  the  sensors  function
and with  the device's  numerous  possibilities and  take  the time  to carefully
read   these   operating   instructions   and   the   appropriate   sections   in   the
ALMEMO

®

 Manual. This is absolutely necessary to avoid operating and mea-

suring errors and to prevent damage to the device. To help you find the an -
swers to your questions quickly and easily there is a comprehensive index at
the end both of these instructions and of the Manual. 

3.1 Warranty 

Each and every device, before leaving our factory, undergoes numerous qual-
ity tests. We provide a guarantee, lasting two years from  delivery date, that
your device will function trouble-free. Before you send your device to us, please
observe   the   advisory   notes   in   Chapter  13.   Trouble-shooting   In   the   unlikely
event that the device proves defective and you need to return it please wher-
ever possible use the original packaging material for dispatch and enclose a
clear and informative description of the fault and of the conditions in which it
occurs. 

This guarantee will not apply in the following cases : 

The customer attempts any form of unauthorized tampering or alteration in-
side the device. 

The device is used in environments and conditions for which it is not suited. 

The device is used with unsuitable power supply equipment and / or periph-
erals. 

The device is used for any purpose other than that for which it is intended. 

The device is damaged by electrostatic discharge or lightning. 

The user fails to observe and comply with the operating instructions. 

The manufacturer reserves the right to change the product's characteristics in
the light of technical progress or to benefit from the introduction of new compo-
nents. 

 ALMEMO

®

 2450-1

5  

Содержание ALMEMO 2450-1

Страница 1: ...____________________________ Operating instructions Universal measuring instrument ALMEMO 2450 1 V2 3 06 11 2013 www ahlborn com...

Страница 2: ...V not type L Mains adapter ZA1312 NA1 12V 0 2A Cable el isol ZA2690 UK 10 30V Interface RS 485 option 5 LCD Function field a Function b Measuring point 2nd meas value c Units for 2nd measured value Ma...

Страница 3: ...voltage monitoring 14 7 2 Mains operation 14 7 3 External DC voltage supply 14 7 4 Sensor supply 14 7 5 Switching ON OFF reinitialization 14 7 6 Data buffering 15 8 CONNECTING THE TRANSDUCERS 15 8 1...

Страница 4: ...ddress and networking 24 12 2 Analog output 25 12 3 Switching OFF automatically 26 12 4 Device locking 26 13 TROUBLE SHOOTING 26 14 DECLARATION OF CONFORMITY 28 15 APPENDIX 28 15 1 Technical data 28 1...

Страница 5: ...l ity tests We provide a guarantee lasting two years from delivery date that your device will function trouble free Before you send your device to us please observe the advisory notes in Chapter 13 Tr...

Страница 6: ...l of any such item as unsorted do mestic waste is strictly forbidden Please dispose of all packaging materials according to the applicable national waste management regulations Please dispose of cardb...

Страница 7: ...or conditions for which it is not suited Use of the device with an unsuitable power supply and or in conjunction with unsuitable peripheral equipment Use of the device for any purpose other than that...

Страница 8: ...uitable Be sure to observe the maximum load capacity of the sensor power supply Sensors with their own integrated power supply are not electrically iso lated from one another 4 2 Handling batteries re...

Страница 9: ...plete list of interface commands with all the printouts Manual Ch 7 The operating instructions you are now reading cover only those features and controls that are specific to this device Many sections...

Страница 10: ...t always indicate the correct units e g when a transmitter is connected Conversion between C Centigrade and F Fahrenheit is performed automatically Measured value designation Each sensor is identified...

Страница 11: ...most sensors sensor breakage is detected automatically except for con nectors with shunt dividers or additional electronics Analog output and scaling Each measuring point can be scaled by means of ana...

Страница 12: ...g over measuring point scans The measured values from measuring point scans can be averaged either over the whole measuring duration or over the specified cycle These average val ues can then be outpu...

Страница 13: ...ence value by pressing key CLR 6 Revert to normal measured value by pressing and holding down key CLR 7 Evaluating a measuring operation Call up maximum minimum values by pressing keys MAX MIN 6 To de...

Страница 14: ...d with power from an external source preferably using mains adapter ZA 1312 NA1 12 V 0 2 A via the DC socket 4 Please ensure that the mains voltage is correct 7 3 External DC voltage supply The DC soc...

Страница 15: ...isting sensors to ALMEMO instruments see Manual Ch 4 All suitable sensors with an ALMEMO connector see above have the measuring range and units al ready programmed and can thus be connected to the inp...

Страница 16: ...can flow between sensors power supply and peripherals All points must therefore lie at the same potential and or any un equal potentials must be electrically isolated Sensors combined within one conne...

Страница 17: ...digits b for depicting various measuring functions a there are also 2 arrows f for depicting the operating status Function field Main field Display of measuring functions in the function field Measur...

Страница 18: ...points Measuring range function not permitted Multiplexer M5 D B is not permitted Sensor breakage flashes Outside of measuring range undershoots cold junction compensation flashes or cold junction com...

Страница 19: ...Section 5 1 1 10 1 Measured value After switching ON first of all a segment test is performed then the battery voltage ap pears and if the batteries are almost empty 3 8 V the LOBAT arrow also appear...

Страница 20: ...olt 2 ZA 9000 FS2D 260 00 260 00 mV d260 Difference volt ZA 9000 FS3D 0 2600 2 6000 V d2 60 Sensor voltage any 0 00 20 00 V UbAt Milliampere ZA 9601 FS1 0 000 26 000 mA I032 Percent 4 to 20mA ZA 9601...

Страница 21: ...ature value can at the same time be dis played in the function field Select 2nd channel Activate temperature display Press and hold dow M Return to channel display Press and hold down M 10 2 Peak valu...

Страница 22: ...this channel The MAX MIN and MEM functions are thus also available for relative measurement 11 OUTPUTS The following interfaces corresponding accessories or options either are nec essary see 14 2 11 1...

Страница 23: ...e entered Or alternatively there are variants 2490 xR02 with 2 integrated electrically iso lated analog outputs see Section 15 2 these can be configured as 0 to 10 V 0 to 20 mA or 4 to 20 mA These app...

Страница 24: ...ling for Analog output P0 7 option see 12 2 Automatic switch OFF time in minutes see 12 3 To enter a value first press ON and the value starts flashing To modify the value press keys M or M To delete...

Страница 25: ...A for 30 0 to 120 0 C For the previously specified reference channel the values for analog output start and analog output end plus analog output type 0 to 20 mA or 4 to 20 mA can all be programmed Fir...

Страница 26: ...o grammed in many versatile ways It is suitable for connecting a wide variety of different sensors additional measuring instruments alarm signaling devices and peripheral equipment Given these numerou...

Страница 27: ...anual 6 2 1 Enter ctrl Q for XON if the device is in the XOFF status Check the programming by means of P15 see Manual 6 2 3 Test the transmit line by selecting a measuring point using com mand Mxx and...

Страница 28: ...owing advisory notes must be observed when operating the device Using the device in strong electromagnetic fields may aggravate measuring er rors 50 V at 3 V m and 1 5 meters thermocouple sensor After...

Страница 29: ...mm ABS acrylonitrile butadiene styrene weight approx 260 g Suitable conditions Operating temperature 10 to 50 C storage temperature 20 to 60 C Ambient relative humidity 10 to 90 rH non condensing 15...

Страница 30: ...conductor relays trigger input ZA 1006 EAK 15 3 Index Accessories 15 2 30 additional channels 8 2 15 AMR Control 5 1 3 13 analog output 11 2 23 Analog output 12 2 25 analog output end 12 2 25 analog o...

Страница 31: ...8 3 16 Power supply 15 1 14 29 Process control 5 1 3 12 Product overview 15 2 29 reference channel 12 2 25 reference value 10 4 22 reinitialization 7 5 14 Relative measuring 10 4 22 RS485 interface 11...

Страница 32: ...3 6 WIN Control 5 1 3 13 15 4 Your contact AHLBORN Mess und Regelungstechnik GmbH Eichenfeldstra e 1 83607 Holzkirchen Germany internet http www ahlborn com e mail amr ahlborn com We take every possib...

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