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Almemo 2190-2, Operating Instructions Manual

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Almemo 2190-2 Operating Instructions Manual Download Page 12

Combined sensors within one connector are electrically
connected to each other and must, therefore, be operated in
isolation. The voltage applied to the measuring inputs must not
exceed 

±

5V (between B,C,D and A or - respectively).

The cold junction compensation for thermocouple measurement is integrated
in socket M1 of the device. 

1

2

3

4

chann. 1

chann. 2

chann. 3

chann. 4

M1

OUTPUT

2190-2

   12

ALMEMO

 2190-2  

   Connection of the Transducers

Summary of Contents for 2190-2

Page 1: ...Operating Instructions Multimeter ALMEMO 2190 2 V1 0 31 05 1999 AHLBORN Mess und Regelungstechnik GmbH Eichenfeldstraße 1 3 D 83607 Holzkirchen Tel 49 0 8024 30070 Fax 49 0 8024 300710 ...

Page 2: ...rols 7 2 INITIAL OPERATION 8 3 POWER SUPPLY 9 3 1 Operation with Battery and Rechargeable Battery 9 3 2 External Power Supply 10 3 3 Switch On and Off 11 4 CONNECTION OF THE TRANSDUCERS 11 4 1 Transducers 11 4 2 Measuring Inputs and Additional Channels 11 5 DISPLAY 13 6 SENSOR PROGRAMMING 14 6 1 Measuring Range 14 6 2 Dimension 16 2 ALMEMO 2190 2 Table of Contents ...

Page 3: ...alues 17 7 3 Memory for Momentary Values 18 7 4 Differential Measurement and Correction of Measured Values 18 7 5 Continuous Measuring Point Scan 19 8 TROUBLESHOOTING 20 9 ELECTROMAGNETIC COMPATIBILITY 21 APPENDIX 22 Technical Data 22 Product Overview 22 Your Contacts 23 ALMEMO 2190 2 3 Table of Contents ...

Page 4: ...e ALMEMO manual that is supplied with every device Detailed description of the ALMEMO system manual section 1 Overview of the device functions and measuring ranges manual section 2 All sensors with basic principles operation technical data man section 3 The options for connecting existing sensors manual section 4 All analogue and digital output modules manual section 5 1 The interface module RS232...

Page 5: ...ters pitot tubes Humidity sensors are available with function channels that also calculate humidity data such as dew point mixture ratio vapour pressure and enthalpy Even complex chemical sensors can be used The acquisition of measured data from other sensors is easily possible by using voltage current and resistance ranges with individual scaling in the connector Existing sensors can be used with...

Page 6: ... button Differential Measurement By setting the measured value to zero it is possible to perform differential measurements related to a reference value or to correct sensor errors External Sensor Programming All sensor programming is supported when they have been programmed in the factory or by using other ALMEMO devices Dimension The 2 digit dimension can be altered for each measuring channel so ...

Page 7: ... maximum value MIN fetch minimum value HOLD freeze meas value CLEAR set meas value to zero clear max min hold 7 Battery Box back of unit Alkaline mangan battery 9V 6F22 Space for spare battery 5 LCD Display a Symbols for operating modes U battery 7 V BAT CORR correction of meas val flashes differential measurement MAX max value MIN min value HOLD meas value freezing b 6 x 7 segment display for mea...

Page 8: ... position see 3 3 4 For displaying the measured values use key MEAS to select the measuring channels read the meas val s 7 1 5 Use the key HOLD to perform a freezing of the measured value see 7 3 6 Differential measurement related to a reference value or sensor adjustment with key CLEAR see 7 4 7 For evaluating the measurement use the keys MAX and MIN to recall the max and min values 8 ALMEMO 2190...

Page 9: ...atteries The battery box 7 is located at the underside of the instrument 1 Press the area that is marked with the arrow and at the same time pull as marked by the arrow as illustrated left 2 Use the connector clip to connect the battery The connector shape prevents from confusing the poles 3 Use the second battery box to store a spare battery Battery Control If the battery warning symbol is illumi...

Page 10: ...t charged when delivered If NiCd cells are only partly discharged the full capacity cannot be reached by a normal recharging Therefore use the instrument until the rechargeable batteries are completely discharged Completely recharge the rechargeable batteries afterwards As a result the life of the rechargeable batteries is significantly increased Completely recharged batteries will slowly discharg...

Page 11: ...res that sensor and output modules can only be connected to the correct sockets Furthermore each ALMEMO connector has two locking levers that snap in when the insertion into the socket is established and that prevent a disconnection caused by pulling the cable Both levers must be pressed on the sides for disconnecting the connector 4 2 Measuring Inputs and Additional Channels The measuring instrum...

Page 12: ... isolation The voltage applied to the measuring inputs must not exceed 5V between B C D and A or respectively The cold junction compensation for thermocouple measurement is integrated in socket M1 of the device 1 2 3 4 chann 1 chann 2 chann 3 chann 4 M1 OUTPUT 2190 2 12 ALMEMO 2190 2 Connection of the Transducers ...

Page 13: ...ng points cleared programming values Sensor correction or scaling arrow CORR illuminated Measurement in differential mode arrow CORR flashes Display max value arrow MAX illuminated Display min value arrow MIN illuminated Measured value frozen arrow HOLD illuminated Continuous measuring point scan arrow CONT illuminated Alarm Conditions Sensor breakage abbr flashes 1 N i C r C Overshooting of measu...

Page 14: ...FS3 60 0 240 0 C N104 NiCr Ni K FT Axxx 200 0 1370 0 C NiCr NiCroSil NiSil N ZA 9020 FSN 200 0 1300 0 C NiSi Fe CuNi L ZA 9000 FSL 200 0 900 0 C FECO Fe CuNi J ZA 9000 FSJ 200 0 1000 0 C IrCo Cu CuNi U ZA 9000 FSU 200 0 600 0 C CUCO Cu CuNi T ZA 9000 FST 200 0 400 0 C CoCo PtRh10 Pt S FS Axxx 0 0 1760 0 C Pt10 PtRh13 Pt R ZA 9000 FSR 0 0 1760 0 C Pt13 PtRh30 PtRh6 B ZA 9000 FSB 400 0 1800 0 C EL18...

Page 15: ... Mixture rario w PC FH A646 0 0 500 0 g k H AH Dew point temperature FH A646 25 0 100 0 C H dt Partial vapour pressure FH A646 0 0 1050 0 mb H UP Enthalpy w PC FH A646 0 0 400 0 kJ H En Humid temperature FN A846 30 00 125 00 C P Ht Rel humidity psychr w PC FN A846 0 0 100 0 H P RH Mixture ratio w PC FN A846 0 0 500 0 g k P AH Dew point temperature w PC FN A846 25 0 100 0 C P dt Partial vapour pres...

Page 16: ...uring point scan see manual 6 5 1 3 The following functions are available for the data processing 1 Storage of maximum and minimum value 2 Freezing of the measured value 3 Differential measurement based on a reference value 7 1 Measured Value and Selection of a Meas Point If no continuous measuring point scan has been programmed only the measured value of the selected measuring point will be conti...

Page 17: ... reference value is indicated for a short time the arrow CORR will flash see 7 4 7 2 Maximum and Minimum Values The maximum and the minimum value are always determined among the current measured values of a measuring point and are stored For displaying the peak values the required channel must be selected see 7 1 and the key MAX or MIN must be pressed For control purposes an arrow will be indicate...

Page 18: ...ce value and the difference to this reference value will be displayed To indicate the differential mode the arrow CORR will flash in the display Set measured value to zero with key LÖSCHEN HOLD MIN MAX CORR M DIM When a zero setting is performed the max and min values of this channel will be automatically cleared If a base value has been programmed see man 6 3 11 the measured value will not be zer...

Page 19: ...her ALMEMO instruments the correction values will not be stored in an EEPROM of the sensor but will be lost when switching over in function MEASUREMENT or when switching the instrument off With the following sensors a slope correction can be performed in addition when a corresponding calibration value is provided at the sensor pH probe FY A8PH xx pH 4 0 or pH 10 0 Conductivity FY A641 LF 2 77 mS c...

Page 20: ...sured values Remedy Press key MEAS VALUE to clear a reference value that might exist Error Varying meas values segment test or blockage during operation Remedy Check cabling for inadmissible electrical connection Disconnect external power supply and output modules Disconnect all suspicious sensors and replace them by hand held sensors operated in air or by dummies short circuit AB at thermocouples...

Page 21: ...V m deviation 100µV The following notes must be observed when operating the instruments 1 If the standard sensor cables 1 5m are extended it must be considered that the measuring lines are not guided together with power mains and that they are appropriately shielded to protect against any coupling of disturbance signals 2 If the instrument is operated within strong electromagnetic fields an additi...

Page 22: ...lectr isol Adapter cable electr isolated ZB 2290 UK 10 30V DC to 12V DC 250mA Current consumption approx 5 5 mA without I O modules Housing 180x85x33mm ABS high impact strength 70 C max Operating temperature 10 60 C Storage temperature 30 60 C Humidity of ambient air 10 90 rH non condensing Extent of the Delivery Measuring Instrument ALMEMO 2190 2 Operating Instructions ALMEMO 2190 2 ALMEMO Manual...

Page 23: ...Your Contacts ALMEMO 2190 2 23 Appendix ...

Page 24: ...24 ALMEMO 2190 2 Appendix ...

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