Almeco ALMEMO V5 5990-2 Скачать руководство пользователя страница 35 | Manualshive

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6.4.7 Volume Flow Measurement

To calculate the volume flow in a flow conduit
the extra functions ´Diameter´, ´Cross
Section´ and ´Volume´ are available.
Together with the averaging functions they
are organised in the menu ´Flow´, which can
easily be loaded or individually configured as
a user menu by using the software
AMR-Control (see 6.6).
As unstable measured values can be easier
read out when an analog display is used, this
menu, besides a small digital display, also
provides a bar chart.
The display range of the bar chart can be set by using the functions ´Analog
Start´ and ´Analog End´ in the menu ´Special Functions´ (see 9.10.4). The
menu is automatically called up if the corresponding values below the scale
are selected.
For determining the volume flow VF in ventilating channels the average flow
velocity ¯v has to be multiplied with the cross section area CS:

VS = ¯v

.

QF

.

0.36

VS = m

3

/h, ¯v = m/s, QF = cm

2

For rough air volume measurements at air vents the average flow velocity ¯v
can be determined by a time-based averaging (see 6.4.5 and manual 3.5.5).
The rotating vane must be applied at one end, the averaging has to be started
and it is necessary to proceed uniformly over the whole cross-sectional area
and to stop the averaging when the other end of the cross-sectional area is
reached.

Alternatively, the average flow velocity can also be determined by single net
measurements according to VDI/VDE 2640 (see 6.4.3 and man. 3.5.5) (e.g.
13.24 m/s). If no averaging mode has been programmed, the measured value
will be used. The measured value can also be used as a rough estimate with a
factor of 0.8 (average point method).

The average velocity ¯v can be displayed through function:

AverageVal:13.24ms

Input of the cross section area CS directly in cm

2:

CrossSection:00175cm

(max. 32000 cm

2

)

or input of the diameter in mm:

Diameter: 00150mm

(max. 2000 mm)
Display of the volume flow VF in m

3

/h in function:

Volume: 00834mh

Output of all function values of the menu by using:

<

PRINT

>

For outputting and storing the number of measuring operations and
the volume flow, the function channels ´

n(t)

´ and ´

Flow

´ also pro-

vided; (see Section 9.9).

ALMEMO

®

5990-2

35

Measuring using the measurement menus

C

REC COM

|> >|

R01

01:

+11

.

37ms Velocity

05

.

00 S220 ms 15

.

00

MeasTime: 00:01:23

.

40

Attenuation: 20
Averag.Mode: STSTP M

¯

Avg. Value: 13.24

m

/

s

Count: 00012
Diameter: 00150 mm
CrossSect: 00175

cm

2

Volume: 08343

m

3

/

h

M

▲

PRINT START MANU

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Содержание ALMEMO V5 5990-2

Страница 1: ...Operating Instructions Data Acquisition System ALMEMO 5990 2 V1 0 2 12 2002 AHLBORN Mess und Regelungstechnik GmbH Eichenfeldstr 1 3 D 83607 Holzkirchen Phone 49 8024 300 70 Fax 49 8024 300 710...

Страница 2: ...meas values output AVG averaging ALARM limit value exceeding or sensor breakage LOCKED locked keys 2 ALMEMO 5990 2 Operating Controls 3 Control keys HOTKEY user menu selection PROG function selection...

Страница 3: ...tor M00 bis M09 10 meas inputs for analog and digital sensors M10 bis M39 30 add chann f double sensors and arithm chann A1 analog output with cable ZA 1601 RK alarm local w ZA1000EAK Extension with P...

Страница 4: ...ansducers 16 4 2 Measuring Inputs and Additional Channels 16 5 DISPLAY AND KEYPAD 18 5 1 Display and Menu Selection 18 5 2 Function Keys 19 5 3 Control Symbols 19 5 4 Function Selection 20 5 5 Data En...

Страница 5: ...ing Point Scans 33 6 4 5 Averaging over Time 34 6 4 6 Measurement Time 34 6 4 7 Volume Flow Measurement 35 6 5 Display of Several Measuring Points 36 6 5 1 Menu Multi Channel Display 36 6 5 2 Menu Lis...

Страница 6: ...9 10 4 Analog Output Start End 60 9 10 5 Output Function 60 9 10 6 Reference Channel 1 61 9 10 7 Multiplexer 61 9 10 8 Element Flags 61 10 DEVICE CONFIGURATION 62 10 1 Device Designation 62 10 2 Devic...

Страница 7: ...Centronics manual section 5 2 The entire ALMEMO networking system manual section 5 3 All functions and their control via the interface manual section 6 A complete interface command list with all prin...

Страница 8: ...s Furthermore function channels for special measuring tasks zur Pulse and volum flow measuring are provided to determine the temperature coefficient Q T and wet bulb globe temperature Dimension The 2...

Страница 9: ...se the response speed Measured Values The measured values of 1 to 20 measuring points can be indicated on the display in 7 different menus that can also be configured in three font sizes as bar graph...

Страница 10: ...lic averaging Print Cycle Factor If necessary the print cycle factor allows for limiting the data output of particular channels so that an excessive data flow can be limited especially during data sto...

Страница 11: ...ng function including a password lock is available to limit the access to the menu and the operating keys as required Output All data logs menu functions and stored measured values and programmed para...

Страница 12: ...parity at peripheral device Set output format columns n or table t as required see 7 2 Output and storage of measuring data Keys Single output storage of all measuring points see 6 2 1 F4 or MANU Ente...

Страница 13: ...will be accordingly shorter If lighting is left switched on permanently the operating period will be reduced to approx 14 hours One way of prolonging the operating time is to switch off the display s...

Страница 14: ...alisation As soon as a suitable voltage supply has been connected the green indicator lamp PWR on the front panel 4 lights up If an accumulator battery is in stalled this lamp also functions as charge...

Страница 15: ...S for the real time clock and the memory a rechargeable lithium battery 3 V is installed this ensures that in the event of the mains supply being interrupted the date and time of day and all stored va...

Страница 16: ...es for disconnecting the connector 4 2 Measuring Inputs and Additional Channels The Measuring Circuit Board ES 5590 G2 of the system ALMEMO 5990 1 has 10 input sockets with at first the meas channels...

Страница 17: ...tor switch boards can be coded from 0 to 7 by the on board code switches The duration of a meas point scan proportionally increases to the number of meas channels Analogue output cables can only be co...

Страница 18: ...e control button 5 on the right turning it to the left or to the right and then pressing it down to confirm Specify the desired menu by keeping the HOTKEY pressed down for a while HOTKEY long Return t...

Страница 19: ...started including storing REC REC Measuring point scan started incl output via interface COM COM Start end time of measurement is programmed or Relay status external output module off or on R or R01 K...

Страница 20: ...rn to select see 5 5 5 5 Data Entry If a programmable parameter is selected see 5 4 you can enter or clear the value Starting from a measurement menu the device firstly switches to the corresponding p...

Страница 21: ...rotary knob corresponds to pressing the key PROG then select the correct value of the digit by turning the rotary knob To select the next digit press the dial again and repeat as above 5 6 Locking of...

Страница 22: ...5 Function selection PROG F F 4 Clear measuring data CLR CLRA 3 Clear memory CMEM 2 Switch on off of parameters OFF ON 1 Data input menu programming PROG PROG press and hold Key operation Locking func...

Страница 23: ...1 meas point 8mm digit height S2 LineChart 1 meas point line chart S3 MultiChannDispl max 4 meas points 8mm digit height U3 4 BarChart max 4 meas points 4mm digits analog bars MeasValList max 20 meas...

Страница 24: ...the time and date will each time be determined and stored from the acquired measured values of each measuring point The functions listed below are available to display these values The software AMR Co...

Страница 25: ...C will be indicated at the first digit of the status line the available measured values on command will only be stored or output 6 2 1 Single Output Storage of all Measuring Points Single manual meas...

Страница 26: ...the next cycle If the function has been selected see 5 4 the print cycle can be programmed see 5 5 or the key FORM can be used as the quickest way to set the required output format see 7 2 Function P...

Страница 27: ...conv rate in the menu Cycles Times ConvRate 10 Cont Time axis 120 x 0 1s 012s 012s Channel switching is blocked during the measurement At each start and at each channel switching the line chart will...

Страница 28: ...ero Function Meas Value 00 C 23 4 Function Set Meas Value To Zero ZERO Meas Val 00 C 00 0 Base value BaseValue 23 4 C Please note that this function is only available if the locking code is set below...

Страница 29: ...ration value pH probe ZA 9610 AKYx pH4 or pH10 Conductivity FY A641 LF 2 77 mS cm FY A641 LF2 147 uS cm FY A641 LF3 111 8 mS cm O2 saturation FY A640 O2 101 6 3 2 Setpoint Entry For the correction of...

Страница 30: ...s for any double sensors 6 3 4 Atmospheric Pressure Compensation Some measuring variables depend on the environmental atmospheric pressure see 9 9 measuring range list w PC As a result higher deviatio...

Страница 31: ...aging exclusively affects the measured value of the displayed channel and serves in case of unstable measured values e g when measuring turbulent flows to attenuate or smooth the meas values by a movi...

Страница 32: ...imes e g net measurements according to VDI VDE 2640 see manual 3 5 5 At all measuring points where measured values must be averaged the averaging must be switched on by using the averaging mode CONT a...

Страница 33: ...average values have to be acquired in cyclic periods over these periods This ensures that the average values are cleared after each print cycle Furthermore either the continuous measuring point scan...

Страница 34: ...using CLR Starting the averaging using the key START M Reading the meas time see 6 4 6 in function MeasTime 00 01 23 40 Stopping the averaging using the key STOP Reading the average value in function...

Страница 35: ...averaging has to be started and it is necessary to proceed uniformly over the whole cross sectional area and to stop the averaging when the other end of the cross sectional area is reached Alternativ...

Страница 36: ...els the measuring point must be selected as function by means of keys see above PROG F The selected measuring point can now be changed by means of M The process of measuring point selection is termina...

Страница 37: ...00 23 12 C Temperature Measured value including max value MeasValList MaxVal 00 23 12 C 32 67 C Measured value including min value MeasValList MinVal 00 23 12 C 19 34 C Measured value including averag...

Страница 38: ...imit value Max s 9 5 LimValMax 1234 5 C OFF ON o 00 Limit value Min LimValMin 0123 4 C OFF ON o 01 Base value s 9 6 BaseVal OFF ON o 02 Factor Factor 1 12345 OFF ON o 03 Zero point s 9 7 ZeroPoint OFF...

Страница 39: ...Volume 00000mh o 27 Max time date s 6 1 2 MaxTime 12 34 01 02 o 28 Min time date s 6 1 2 MinTime 13 45 01 02 o 29 Blank line o 30 Line o 31 Attenuation s 6 4 1 Attenuation 10 CLR o 32 Memory free s 8...

Страница 40: ...Blank line 05 Locking 06 Setpoint 07 Zero point 08 Factor 09 TempComp 10 AtmPress 11 End 12 Selection of the first function using the key PROG Programming the function PROG Blank line Selection of the...

Страница 41: ...0 0 C Base BASEVAL 01 0273 0 C Factor FACTOR 01 1 0350E 1 Zero Point Correct ZEROPOINT 01 0000 7 C Slope Correction SLOPE 01 1 0013 Analog Start ANALOGSTART 01 0000 0 C Analog End ANALOGEND 01 0100 0...

Страница 42: ...ts 1 to 5 f5 P20 Text1 etc Output of the menu configurations fu P20 Menu title of the menu u U1 MenuTitle U1 In line 00 function yy 00 30 In line 01 function yy 01 39 02 16 03 24 04 30 Output of all f...

Страница 43: ...switched on after a reinitialisation but it can also be switched off if required Of course it is not necessary that a peripheral device is connected to the socket A1 if the print cycle is used e g for...

Страница 44: ...m ss s 5 5 MeasCycle 00 00 30 Clear meas cycle terminate current scan CLR Function Storage Activation in meas cycle Store Switch on storing ON Switch off storing OFF 7 4 Conversion Rate Continuous Mea...

Страница 45: ...used twisted wires 7 5 Time and Date of Start Time and Date of End A sequence of measurements can at certain points in time be automatically started and stopped For this purpose the start time and da...

Страница 46: ...useful when the data logger can remain at one measuring location and data can just be taken on a memory device and evaluated somewhere else Please consider the following characteristics when using ex...

Страница 47: ...e No Free 0217 5kB or when external memories are connected Externally available memory capacity Memory ext 08 165MB Number and memory space of the ext memory No 02 Free 02 734MB Linear memory without...

Страница 48: ...OFF Deactivating the number with the key 8 4 Memory Display One measuring point scan at a time can be indicated in list format on the display During a measurement in progress you can either follow the...

Страница 49: ...in function NUMBER see 8 3 NUMBER 12 001 A To select a time interval Enter the start time using the format hh mm ss StartTime 07 00 00 Enter the end time using the format hh mm ss EndTime 17 00 00 Ent...

Страница 50: ...RY 03 evtl connector number NUMBER 12 001 if activated DATE 12 03 00 List format 12 30 00 01 0012 0 C NiCr Designation below each other 02 0008 8 C NiCr Water 03 125 00 C Ntc MotorOil The connector nu...

Страница 51: ...u TIMES CYCLES to perform a data recording in the true sleep mode 1 Select the sleep mode Store Sleep 2 Switch on the sleep mode using the key Store Sleep 3 In a meas menu start Measure by pressing ke...

Страница 52: ...ecessary to select the menu Sensor Programming and then to set the required input channel by using the key M or M For this only connected sensors and activated channels will be considered To be able t...

Страница 53: ...averaging Averag Mode 9 4 Locking the Programming of the Sensor see man 6 3 12 The function parameters of each measuring point are protected by the locking mode up to an adjustable locking level Befor...

Страница 54: ...al Point Setting For indicating the electrical signal of a sensor as a measured value of a physical variable it is in most cases necessary to set a zero point shift and to perform a multiplication wit...

Страница 55: ...emperature value in degreeCelsius will be converted into degrees Fahrenheit The cold junction compensation can be switched off by using the characters C 9 9 Selecting the Measuring Range If users want...

Страница 56: ...2 6000 2 6000 V U2 60 Differential Millivolt 1 ZA 9050 FS 26 000 26 000 mV d 26 Differential Millivolt ZA 9050 FS 10 000 55 000 mV d 55 Differential Millivolt 2 ZA 9050 FS 260 00 260 00 mV d260 Diffe...

Страница 57: ...Y A600 CO2 0 0 2 500 CO2 O2 saturation wth TC a PC FY A640 O2 0 260 O2 S O2 concentration wth TC FY A640 O2 0 40 0 mg l O2 C Function channels Difference Mb1 Mb2 any diFF Maximum value Mb1 any Hi Mini...

Страница 58: ...ycle also allows to suppress unnecessary measured values and as a result saves memory space Enter the print cycle factor see 5 5 in function PrintCycleFactor 01 Clearing the print cycle factor with th...

Страница 59: ...es to one relay For this purpose the relay cables provide 2 relays 0 and 1 and the relay adapter ZA 8000 RTA provides 4 relays 0 to 3 This mode also has to be set as variant 2 in the output module see...

Страница 60: ...not the real measured value but only the Max Min Average or Alarm value is required then this function can be programmed as output function see manual 6 10 4 As a result only the corresponding functio...

Страница 61: ...all other cases it is possible to change the pin assignment in the connector by changing the input multiplexer see manual 6 10 2 Programming of the ref channel 2 absolute RefChannel 2 00 Programming o...

Страница 62: ...ire the measured values of several instruments that are located at different places see manual 5 3 For communicating with networked devices it is mandatory that all devices have the same baud rate and...

Страница 63: ...ed on or off in the main menu by using the key ON or in the function Illumination of the device configuration If the device is operated with rearchable battery the illumination will switch off one min...

Страница 64: ...A1 and A2 to allow an output of the measured values as analog or digital values or as alarm signals Furthermore it is possible to trigger various functions through trigger pulses To suit all possibili...

Страница 65: ...5 Internal relays R0 and R1 in slide in unit ES 5990 N 7b react as programmed see below The resulting status of relay R0 R1 is indicated in the status bar of the display 6 Further alarm cables can be...

Страница 66: ...gger alarm EGK 0 EA0 Start stop relay R0 alarm from all channels cables EGK 1 EA1 Start stop relay R0 alarm Max R1 alarm Min EGK 2 EA2 Start stop relay Rx internally allocated EAK 8 EA8 Start stop rel...

Страница 67: ...Usually the measured value of the selected channel Mxx is output to the analog output However in case of a continuous measuring point scan a reference channel can be programmed allowing to define any...

Страница 68: ...Remedy Check cabling for inadmissible electrical connection disconnect all suspicious sensors connect hand held sensors and operate them in air or connect dummies short circuit AB at thermocouples 100...

Страница 69: ...ng instructions it must be sent to the factory in Holzkirchen Germany including a short report and possibly control printout The AMR Control program incorporates its own test function in the device li...

Страница 70: ...pply mains adapter approx 12V max 100mA recharg battery 7 9V max 100mA Selector Switch Boards ES5590 MF 10 ALMEMO sockets for flat connector 10 chann electr isol 30 add chann 2 slots Selector Switch B...

Страница 71: ...ed inputs for ALMEMO flat connector 10 to 40 meas channels output socket for alarm cable max 8 carts space requirement 2 plug in slots ES 5590 MF Selector Switch Board with 10 electrically isolated in...

Страница 72: ...4 7 6 6 34 37 Base value 9 6 53 Battery operation 3 1 13 Baud rate 10 3 62 Changing the dimension 9 8 54 Channel selection analog output 11 3 65 Configuration user menus via interface 6 6 2 41 Configu...

Страница 73: ...voltage supply 3 3 13 Factor 9 6 53 Function range 1 1 6 Function printouts 6 6 1 40 Function keys 5 2 18 Function selection 5 4 19 Hysteresis 10 7 62 Illumination display 10 5 62 Initial operation 2...

Страница 74: ...2 Menu Monitoring 6 1 2 23 Menu Multi Channel Display 6 5 1 35 Menu Data Logger 6 22 Minimum sensor supply voltage 9 10 2 57 Multiplexer 9 10 7 60 Networking 10 2 61 Numbering of measurements 8 3 47 O...

Страница 75: ...1 45 Special functions 9 10 57 Start time and date data recording 7 5 44 Start time and date memory output 8 5 48 Storage activation print cycle 7 2 42 Storage activation measuring cycle 7 3 43 Stori...

Страница 76: ...76 ALMEMO 5990 2 Appendix...

Страница 77: ...ALMEMO 5990 2 77...

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