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pH300   V1.0    7/09 

pH Measurement Mode 

Preparation for Measurement 

1.  Turn the meter ON using the power key 
2.  Press the MODE key momentarily to switch to the pH mode, if necessary 
3.  Unscrew the protective cap on the probe jack located on the bottom of the meter (store 

the protective cap in the carrying case for later use) 

4.  Carefully connect the pH probe to the meter’s probe jack. The probe can only be 

inserted in one orientation. Once it is firmly connected, screw the probe collar onto the 
meter to secure the probe. 

3-Point Calibration (7.00pH, 4.00pH and 10.01pH) 

Note: Calibrate the unit once per day for best results. 

 

1. Press the 

CAL

 key to enter the Calibration mode. The meter’s display will show a 

blinking ‘

Cl

’ 

2.  Rinse the probe in distilled water, allow it to dry, and submerge it into a pH 7.00 buffer 

solution. Stir the solution briefly and allow it to stay in the buffer solution until a stable 
reading is reached 

3. Press 

CAL

 again and the display will show a blinking ‘

7.00’

 

4.  This portion of the calibration procedure is complete when the display stops blinking 

and shows the ‘

C2

’ icon. The unit will automatically switch to the second point of the 

calibration 

5.  Rinse the probe in distilled water again, allow it to dry, and submerge it into a pH 4.00 

buffer solution. Stir the solution briefly and allow it to stay in the buffer solution until a 
stable reading is reached 

6. Press 

CAL

 again and the display will show a blinking ‘

4.00’

 

7.  This portion of the calibration procedure is complete when the display stops blinking 

and shows the ‘

C3

’ icon. The unit will automatically switch to the third point of the 

calibration 

8.  Rinse the probe in distilled water again, allow it to dry, and submerge it into a pH 10.01 

buffer solution. Stir the solution briefly and allow it to stay in the buffer solution until a 
stable reading is reached 

9. Press 

CAL

 again and the display will show a blinking ‘

10.01

’ 

10. After the display stabilizes the 3-point calibration icon will appear 

 

1-Point and 2-Point Calibration 

Note that the user can calibrate one or two points only, if the expected measurement is 
known. 
For example, if the expeced pH is 4pH, it is acceptable to perform only a 1-Point 
Calibration (4pH). If the expected measurement is between 4.00pH and 7.00pH, the user 
can perform a 2-Point Calibration (4.00 and 7.00pH), and so on. 
For a 4pH calibration, only the circled 

L

 will appear on the LCD. For a 7.00pH, only the 

circled 

M

 will appear on the LCD. For a 10.01pH Calibration, only the circled 

H

 will appear 

(

L

ow, 

M

edium, and 

H

igh). 

For all other applications, a 3-Point Calibration is recommended. Always perform a 3-Point 
Calibration on new probes and probes that have been in use for long periods. This 
maximizes measurement slope linearity. 

www.burntec.com

Summary of Contents for pH300

Page 1: ...User s Guide Digital pH Meter Model pH300 www burntec com ...

Page 2: ...olutions The meter s digital filter improves measurement speed and accuracy Two special modes ammonia and purified water are provided The meter offers a backlit LCD display and is dust proof and water proof meeting the IP57 rating This meter is shipped fully tested and calibrated and with proper use will provide years of reliable service Supplied Equipment List pH300 Meter pH ATC Automatic Tempera...

Page 3: ...4 Electrode connection jack 5 Electrode plug 6 Electrode measuring bulb 7 Electrode body 8 Electrode cable Display Description 1 Parameter Mode icon 2 Measurement reading 3 888 Stored data serial number M measurement to be stored icon RM reading to be recalled icon 4 Unit of measure 5 Temperature reading 6 Stable measurement icon 7 Calibration icons 8 Low battery icon www burntec com ...

Page 4: ...o change the displayed number or the ON OFF state Store Recall and Clear Datalogger Memory STORE Readings The meter can store up to 100 pH and 100 mV readings for a total of 200 data points To store a reading wait until the reading stabilizes the smiling face icon appears when the reading stabilizes Press the M RM key momentarily to store a reading The M icon appears and the data point serial numb...

Page 5: ...on Stir the solution briefly and allow it to stay in the buffer solution until a stable reading is reached 6 Press CAL again and the display will show a blinking 4 00 7 This portion of the calibration procedure is complete when the display stops blinking and shows the C3 icon The unit will automatically switch to the third point of the calibration 8 Rinse the probe in distilled water again allow i...

Page 6: ...series selection USA Europe U S A NIS NIST CH China P2 Distilled water pH temperature compensation setting see note below this table OFF ON P3 Distilled water with Ammonia pH temperature compensation setting see note below this table OFF ON P4 Temperature unit setting P5 Back light display time setting 0 1 3 6min P6 Auto power off setting 0 10 20min P7 Restore to default factory settings OFF ON No...

Page 7: ...parameter P4 or press ENTER to return to the normal measurement mode 3 See the Note below the Table in the previous section for more details on parameter P3 Parameter P4 Temperature Measurement Units Setting 1 From the P4 menu use the CAL or the M RM keys to turn this feature ON or OFF 2 Momentarily press MODE to move to the next parameter P5 or press ENTER to return to the normal measurement mode...

Page 8: ...urified water and diluted to 100mL The electrode should not be soaked in a purified water protein solution or an acid fluoride solution for long periods of time In addition do not soak the electrode in organic silicon lipids For calibration accuracy the pH of the standard buffer solution must be reliable The buffer solution should be refreshed often especially after heavy use For best accuracy alw...

Page 9: ...ompt Parameters Code Settings P1 Back light display time 0 1 3 6 min P2 Auto power off time 0 10 20 min Parameter P1 Display Backlight Setting 1 Press MODE to access the P1 Parameter 2 Use the CAL or the M RM keys to select 0 1 3 or 6 minute default backlighting time 3 Momentarily press MODE to move to the next parameter P2 or press ENTER to return to the normal measurement mode Parameter P2 Autom...

Page 10: ...1999 mV to 0 to 1999mV Resolution 1mV Accuracy Meter 0 1 FS Other Technical Parameters Data storage 200 data groups Storage content Data serial number measurement value unit of measure Power Two AA batteries 1 5V x 2 Size and weight Meter 2 6 x 4 7 x 1 2 65 120 31mm 6 3 oz 180g Case 10 x 8 3 x 2 255 x 210 x 50mm 1 7 lbs 790g Quality Safety certification ISO9001 CE and CMC Working Conditions Enviro...

Page 11: ... is responsible for shipping charges freight insurance and proper packaging to prevent damage in transit This warranty does not apply to defects resulting from action of the user such as misuse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech specifically disclaims any implied warranties or merchantability or fitness for a specif...

Page 12: ...pH300 V1 0 7 09 12 www burntec com ...

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