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4.2

 

Calibration without Temperature Probe

 

4.2.1  Remove  the  temperature  probe  connected  to  the 

instrument. The temperature display will show a default 
reading of 25.0°C. 

4.2.2

 

Set  the  instrument  to  display  the  temperature  of  the 
buffer  7.00  by  pressing  the  TEMP  SET  key  once.  The 
temperature  digit  will  flash  momentarily.  Press  the  key 
again, the next digit will flash.  Select the digit you wish 
to change while it flashes and press the DIGIT ADV key 
to advance the digit.  Digit will advance at each press 
of the key. Digit will not advance by double pressing. 

4.2.3

 

After setting the temperature, rinse the pH electrode in 
distilled  water.    Dip  the  pH  electrode  into  the  pH  7.00 
rinsing  solution  and  then  into  the  pH  7.00  calibration 
solution and press the CAL key. The OFFSET indicator will 
flash  momentarily.  Once  the  instrument  detected  the 
correct  offset  buffer,  the  OFFSET  indicator  will  stop 
flashing and offset value will be displayed. 

4.2.4

 

Now  the  instrument  is  performing  a  multiple  data 
sampling.  It will take a little longer time for an accurate 
calibration point.  

4.2.5  When  OFFSET  point  is  established,  the  instrument  will 

beep and the SLOPE indicator will flash. 

4.2.6

 

Repeat  step  4.2.2  to  set  the  temperature  of  the  slope 
buffer if required.  

4.2.7

 

Rinse  the  pH  electrode  in  distilled  water  and  then  pH 
4.01 or 10.01 rinsing solution. Dip the pH electrode in pH 
4.01 or 10.01 calibration solution. 

4.2.8

 

The  SLOPE  indicator  will  stop  flashing  when  the 
instrument  detects  the  correct  slope  buffer  and  will 
display the buffer reading. 

Содержание HP9000

Страница 1: ...Operations Manual WalkLAB pH mV ORP temperature meter HP9000 16 1 16 1 2 15 2 15 14 3 14 3 4 13 4 13 12 5 12 5 6 11 6 11 10 7 10 7 8 9 8 9...

Страница 2: ...ARTED 6 3 1 Unpacking 6 3 2 Setting Up 6 4 CALIBRATION PROCEDURE 6 4 1 Calibration with Temperature Probe 7 4 2 Calibration without Temperature Probe 8 5 MEASUREMENT 9 5 1 pH Measurement with Temperat...

Страница 3: ...it requires very low power in OFF and AUTOLOCK mode Ease of use Automatically lock reading when a stable reading is established Feature can be disabled to allow continuous reading display Automatic sh...

Страница 4: ...tomatic Temperature 0 to 99 9 C Compensation Buffer Recognition pH 7 pH 4 or pH 10 Buffer Temperature Range 0 to 60 C Electrode Slope Recognition 20 at pH 4 or pH 10 25 C Electrode Offset 60 mV at pH...

Страница 5: ...2 FRONT PANEL DESCRIPTION 3 Main Display Temperature Display Temperature Probe pH Electrode...

Страница 6: ...ON OFF key turns the instrument on and off When switch ON display will show the present reading in AUTOLOCK mode MODE The MODE key selects reading from pH to mV display During calibration MODE select...

Страница 7: ...r press and hold the key 2 3 ERROR CODES ER 1 pH out of range pH less than 0 or more than 14 00 pH mV out of range mV less than 999 or above 999 mV ER 2 Calibration buffer solution s temperature below...

Страница 8: ...pH electrode into their respective connectors on the side of the instrument 3 2 3 Next you must calibrate the instrument Follow the calibration procedure in step 4 Always switch on the instrument for...

Страница 9: ...performing a multiple data sampling It will take a little longer time for an accurate calibration point 4 1 5 When OFFSET point is established the instrument will beep and the SLOPE indicator will fl...

Страница 10: ...00 rinsing solution and then into the pH 7 00 calibration solution and press the CAL key The OFFSET indicator will flash momentarily Once the instrument detected the correct offset buffer the OFFSET...

Страница 11: ...le solutions one for rinsing and the other for testing This will prevent carry over of solution during testing 5 1 pH Measurement with Temperature Probe 5 1 1 Rinse the pH electrode and temperature pr...

Страница 12: ...next digit will flash Select the digit you wish to change while it flashes and press DIGIT ADV key to advance the digit Digit will advance at each press of the key Digit will not advance by double pre...

Страница 13: ...ments 5 4 1 Replace the pH electrode with the measuring electrode 5 4 2 Rinse the measuring electrode in distilled water and switch on the instrument 5 4 3 Rinse the measuring electrode in test sample...

Страница 14: ...11 4 00 10 32 5 7 08 4 00 10 25 10 7 06 4 00 10 18 15 7 03 4 00 10 12 20 7 01 4 00 10 06 25 7 00 4 01 10 01 30 6 98 4 02 9 97 35 6 98 4 02 9 93 40 6 97 4 03 9 89 45 6 97 4 04 9 86 50 6 97 4 06 9 83 55...

Страница 15: ...within warranty will be repaired at no charge Make sure that the instrument is properly packed and insured against possible damage or loss in shipment Purchase invoice MUST accompany returned product...

Страница 16: ...and work procedures and the result of inspection or testing for calibration meets the product specifications above The standard solutions use for the calibration procedure was tested by instrument wh...

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