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  HND-P231/-233/-236/-239 

HND-P231/-233/-236/-239 K05/0422 

 

page 7 

1)

 

Zero-Point  Adjustment: 

If  there  is  no  pressure  or  zero-pressure  (absolute) 

applied  to  the  pressure  ports  the  device  will  display  0.  If    there  is  a  permanent 
deviation  (and  device  is  operated  under  steady  conditions),  a  permanent  zero 
point adjustment can be carried out. To carry out the adjustment press button 3 
for  approx.  5  seconds  (Auto  Null  will  be  displayed  shortly).  The  adjustment  is 
done via the OFFSET-value of the sensor (referring configuration menu).  
To recall the manufacturer’s calibration press button 3 for approx. 15 seconds. 
 

Please Note: A zero-point adjustment can only be carried out if 

the difference between the value on display is less than 500 

digits! 
If a zero point adjustment was carried out the display shows 

”Corr” after a restart . 

 

7.5  Operation 

After turning on

, if the logger function is not off, the time of the integrated clock 

will  shortly  be  displayed.  If  a  zero  point  adjustment  was  carried  out  the  display 
shows shortly „nuLL Corr“. 

After  changing  the  battery

  the  clock-setting  menu  is  activated  automatically 

(‚CLOC‘). Check the clock and adjust, if necessary (p.r.t. chapter 7.7). 

 

Содержание HND-P231

Страница 1: ...Operating Instructions for Manual Pressure Measuring Devices with External and Integrated Pressure Sensors Model HND P231 HND P233 HND P236 HND P239...

Страница 2: ...res 11 8 1 Different Kinds of Measuring rAtE Slo P dEt FASt 11 8 2 Sea Level Correction only for HND P239 11 8 3 Averaging Function 12 8 4 Operation of Logger 13 8 5 The Serial Interface 16 8 6 Pressu...

Страница 3: ...persons familiar with these operating instructions and in accordance with local regulations applying to Health Safety and prevention of accidents When used in machines the measuring unit should be use...

Страница 4: ...pressure sensor for absolute pressure measurement The measuring device is connected to the measuring point by means of a stable metal connection on the top of the housing and an optional plastic hose...

Страница 5: ...ediately and to be marked accordingly to avoid re starting Operator safety may be a risk if there is visible damage to the device the device is not working as specified the device has been stored unde...

Страница 6: ...e tubes higher pressure lower pressure Interface Connection for el isolated interface adapter p r t chapter 8 5 Serial Interface The mains adapter socket is located at the left side of the device 7 3...

Страница 7: ...e sensor referring configuration menu To recall the manufacturer s calibration press button 3 for approx 15 seconds Please Note A zero point adjustment can only be carried out if the difference betwee...

Страница 8: ...p Pull at label open again to swing open the pop up clip further Function The device with a closed pop up clip can be plainly laid onto a table or attached to a belt etc The device with pop up clip at...

Страница 9: ...ered low power consumption FASt Fast measuring rate filtered 1000 Hz P dEt Peak detection fast measuring rate unfiltered 1000 Hz t AVG 1 120 Averaging period in seconds used by the averaging function...

Страница 10: ...sumption only for cyclic logger and slow measuring rate SEt CLOC Set Clock Setting Of Real Time Clock CLOC HH MM Clock Setting of time hours minutes dAtE TT MM Date Setting of date day month YEAr YYYY...

Страница 11: ...of 1 ms The cyclic logger function records the arithmetic mean value the highest and the lowest peak of the referring time interval Attention higher power consumption measuring is sensitive to noise E...

Страница 12: ...min max value memory refers to the internal measured values fast peaks can be detected 8 3 1 Power off Time If there won t be pressed any key and no interface communication takes place for the time of...

Страница 13: ...eak Min and max peak are the minimum resp the maximum of the measured values since the last recording Using them allows f e analysis of fluctuating pressures For the evaluation of the data the softwar...

Страница 14: ...Recording with Selectable Logger Cycle Time The Logger Cycle Time is setable p r t configuration For example CYCL 60 A measuring is recorded after each 60 seconds When the slow measurement rAtE Slo is...

Страница 15: ...6 the recording can be stopped manually Then the following choice appears The selection can be made by key 2 and key 5 Quit key 6 enters the choice Note If you try to switch off the instrument in the...

Страница 16: ...urity checks implemented e g CRC The following standard software packages are available HND Z034 Operation and read out of logger function data display in diagrams and tables BUS S20M 20 channel softw...

Страница 17: ...e x 222 Set altitude x 223 Set power off time Conf P oFF x x x 224 Logger Read data of CYCL Logger x 102 Set min alarm rail AL AL Lo x 225 Logger Read cycle time LoGG CYCL x 103 Set max alarm rail AL...

Страница 18: ...pressure port The measuring range covers then up to max overpressure range Note All values are displayed now as positive values No minus sign will be shown Example it is possible to measure under pres...

Страница 19: ...essary System error Disconnect battery and power supplies wait shortly then reconnect Device defective Return to manufacturer for repair Err 1 Measured value above allowable range Check pressure above...

Страница 20: ...device is not used for a longer period of time 10 Technical Information HND P231 Measuring range1 1 0 to 25 0 mbar Overload2 max 100 mbar Resolution 1 Pa 0 01 mbar Accuracy 0 3 F S Hysteresis and lin...

Страница 21: ...g gases and liquids not for water Display 2 x 4 digit LC displays Operating temp 20 to 50 C Storage temp 20 to 70 C Storage humidity 0 to 95 r H non condensing Output serial interface via 3 pin jack t...

Страница 22: ...4 measurements sec fast 1000 measurements sec filtered peak detect 1000 measurements sec Power saving mode for measuring cycle slow Real time clock current time Logger functions Manual 99 datasets Cy...

Страница 23: ...ed HND Z032 Interface converter on USB galvanically isolated HND Z033 Adapter RS232 converter on USB interface BUS S20M Software for recording measuring data on a PC for 20 modules for devices of the...

Страница 24: ...onformity with the standards noted below EN 61326 1 2013 Electrical equipment for measurement control and laboratory use EMC requirements Part 1 General requirements EN IEC 63000 2018 Technical docume...

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