Ahlborn ALMEMO 2390-5 Operations Instructions

Operating instructions Multifunction measuring instrument ALMEMO® 2390-5 with data logger optionV1.310.10.2005 ALMEMO 2390-5 1

(6) FUNCTION KEYSPROG, +/-, ▲ ▼, Input of programming parameters▲PROG, CLEAR Clear data, set measured value to zeroPROG, ▼, PROG Adjust measured va

2. PUTTING INTO SERVICE1. Connect transducer to sockets M0 to M2 (2); (see Section 4). 2. Ensure that the power supply is provided via 9-volt battery

3. POWER SUPPLYAs power supply for the measuring instrument there are the following possibili-ties: 9-volt batteries IEC 6F22 ZB 2000-B9 9-volt

Tips on how to handle batteries correctly:Never leave used dead batteries in the device ! If the device is likely to be unused for a relatively long t

3.3 Switching ON / OFF, retaining stored data, reinitializationThe ON / OFF slide switch (1) located on the left side of the device has twoswitch posi

4. CONNECTING THE TRANSDUCERSVirtually any ALMEMO® sensor can be connected to any of the ALMEMO® inputsockets M0 to M2 (2). To connect your own exist

same decimal point position connected at measuring points M0 and M1. Howe-ver, all four channels can be programmed with any other function channels(e

5. DISPLAY AND KEYPAD5.1 Display The display (5) on measuring instrument ALMEMO 2390-5 comprises an LCDwith 6½ x 7-segment characters, two 16-segment

Special operating statesSegment test for display This is performed automatically each time the device is switched ON.Voltag

5.2 Function selection and activationMeasuring instrument ALMEMO 2390-5 provides a wide variety of functions forcontrolling measuring sequences, for a

Operating instructions Multi-function measuring instrument ALMEMO® 2390-5with data logger option With supplementary reference to the ALMEMO® ManualTab

FunktionsValue Abbrev. ActivationMemoryTemp. compensation1: 023.4TCHold down FUNCTION keyfirst time it is pressedDeviceMemory free (option S)01:

Language setting The function abbreviations can be shown in any one of three languages. Youcan switch between languages in theDISPLAYMODE ´DM´ functi

5.4 Data inputNumeric parameters are programmed as follows :Select the desired function by pressing the FUNCTION keyStart programming by pressing the

6. MEASURING OPERATIONSMeasuring instrument ALMEMO 2390-5 provides the following options for mea-sured data acquisition : 1. Semi-continuous measurin

6.1.2 Differential measurementIf there are two sensors with the same units and same decimal point positionconnected at measuring points M0 and M1, the

6.2.1 Setting the measured value to zero, It is possible - a very useful function - to zero the measured value at certain lo-cations or at certain tim

In the ´AJ´ function the measured value appears in the display, initially flashing;this should be the measured value expected after adjustment, i.e. e

6.2.3 Entering a setpointA setpoint can be entered in much the same way as gain adjustment (describedin the previous section). If you save defined ca

used for all thermocouple types; however, they require two measuring chan-nels. ´#J´ is programmed in the comments; this ensures that the temperature

Select by pressing key ... Enter °C s. Sec. 5.4FUNCTION 1: 1 8 0.0 TK6.3 Measuring point scans and data outputMeasuring point scans can be used to a

6.2.6 Temperature compensation 286.3 Measuring point scans and data output 296.3.1 Once-only measuring point scan 296.3.2 Cyclic measuring point sc

The cyclic measuring operation is started by pressing theSTART/STOP key; the´START´ arrow should light up continuously. If a peripheral device is con

6.3.4 Manual data outputIn all functions selected by pressing the FUNCTION key, the function values can,by pressing the MANU/PRINT key, be output to a

6.4 AveragingThe average value of the measured value is required for various applications : e.g. the average flow velocity in a ventilation channel s

If a sensor with an ALMEMO® connector is connected, the following modes canbe set by pressing keys PROG, ▲ ▼, PROG :Function

Section 3.5.5) or for a whole measuring operation (also with cyclic scanning),the averaging mode to be set is ´Cont´ (see Section 6.4.2). 1. Select th

6.4.5 Volume flow measurementTo determine the volume flow VF in ventilating channels multiply average flowvelocity ¯v by cross-section area CS.:VF =

Entering the cross-sectionThe cross-section area CS can be entered in the ´Flow´ channel either directlyin the ´CS´ function up to a maximum of 32000

6.4.7 Averaging over several measuring pointsTo determine the average value over several measuring points from Mb2 toMb1 at the same time, function ch

re, and evaluated by computer over a read interface (ZA 1409-SLG0) on acompletely device-independent basis. Old read cable ZA 1409-SLK does not suppor

Starting and stopping with start date and time-of-day, and end date andtime-of-dayA measuring series can be started and stopped automatically at speci

1. INTRODUCTIONThe multi-function measuring instrument ALMEMO® 2390-5 is a new memberin our family of unique measuring devices - all equipped with Ahl

Delete memoryWhen the PROG key is pressed, the symbol ´SClr´ starts flashing. Only if younow press the Clear key will the memory content be deletedde

7. SENSOR PROGRAMMINGSince on ALMEMO® devices all sensor programming is stored in the ALMEMO®connector, the user will not normally need to reprogram.

Locking mode function ´LM´Select by pressing key: ... Enter as per Sec. 5.4FUNCTION 1:0 0 0 5 LMIn the display, in front of the locking mode, you shou

7.5 Scaling, decimal point settingTo display the electrical signal of a sensor as measured value in its physical si-ze, it is nearly always necessary

All upper-case and lower-case letters, special characters °, °, Ω, %, [, ], *, -, =,~, and space (_) can be used. The units are shown as two 16-segme

range appears in the display, programming can be completed by pressing thePROG key again and this data is transferred and saved to the connector. All

TransducerSensor / connectorMeasuring range Units DisplayOhmsZA 9000-FS 0.00... 500.00Ω OhnOhm ++ ZA 9003-SS3 0.000... 50.000ΩOhn1Freq

TransducerSensor / connectorMeasuring range Units DisplayAverage val. M(n) of Mb2 to Mb1anyA[n]Sum S(n) of Mb2 to Mb1anyS[n]Total pulses S(t) of Mb1ZA

The measured value is then no longer displayed, scanned, and output but theprogramming is retained intact.Reactivating the measuring channel:Function:

8. ANALOG OUTPUTFor the analog registration of the selected measuring point you can, to socketsA1 or A2, connect either an analog output cable ZA 1601

SENSOR PROGRAMMING The measuring channels are automatically programmed via the ALMEMO® sen-sor connectors. However, the user can easily supplement or

9. DEVICE PROGRAMMINGAll sensor parameters are saved in the sensor connector; certain other parame-ters are stored in the device itself. These includ

interface module !). BAUD RATE function ´BR´Select by pressing key FUNCTION.. U n 9 6 0 0 BR Example: Output to interface ´U´, in ´side-by-side´ fo

10. TROUBLE - SHOOTINGALMEMO 2390-5 measuring instruments can be configured and programmedin many versatile ways. These measuring instruments are sui

Test data transmission by means of a terminal (AMR-Control, WIN-Control, WINDOWS-Terminal) : Address the device using its as-signed device number Gxy

Technical data (s.a. Hb. 2.2)Measuring inputs : Three ALMEMO® sockets for ALMEMO® flat connectors Channels : 4 channels / sensor maximum (measuring an

Product overview Order No.Multi-function measuring instrument ALMEMO 2390-5 3 inputs, maximum 16 channels, 5 keys, cascadable interface MA 2390-5Optio

INDEXKeyword Section PageAdditional channels 4.2 15Analog output - start / end 8.1 48Atmospheric pressure compensation 6.2.5 28Averaging 6.4 32Ave

Keyword Section PageElement flags 7.2 42Exponent 7.5 43External voltage supply 3.2 13Factor7.5 43Final value adjustment of force transducers 6.2.3

Keyword Section PageOutput function 7.2 42POWER SUPPLY 3 12Print cycle factor 6.4.6 36Product overview 54PUTTING INTO SERVICE 2 11Recharg

Your contact partners ALMEMO 2390-5 59 Appendix

Limit values and alarm Per measuring channel two limit values can be set (1 maximum and 1 mini-mum). In the event of one of these limit values being

60 ALMEMO 2390-5 Appendix

Volume flow measurement For all flow sensors not only the functions for averaging are provided but alsofunctions for entering the cross-section and di

automatically according to date and time-of-day. The memory can be organi-zed and configured in linear or ring form. As an alternative storage mediu

1.2 Operating controls(1) ON/OFF-switch up ONdown OFF(2) Measuring inputs M0, M1, M2M0, M1, M2 for all ALMEMO-sensorsM3 Function channel diffe