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Operation Manual 

 

MODEL pH6175 

 

Microcomputer Based 

pH/ORP/Temperature   

Benchtop Meter 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

pH6175

 

Summary of Contents for VisionPlus pH6175

Page 1: ...0 Operation Manual MODEL pH6175 Microcomputer Based pH ORP Temperature Benchtop Meter pH6175 ...

Page 2: ...de 8 d Calibration with manual temperature compensation in the pH NON AUTOLOCK mode 9 C pH Measurements 9 a Measurement with an ATC Temp probe in the pH AUTOLOCK mode 9 b Measurement with manual temperature compensation in the pH AUTOLOCK mode 10 c Measurement with an ATC Temp probe in the pH NON AUTOLOCK mode 10 d Measurement with manual temperature compensation in the pH NON AUTOLOCK mode 11 D T...

Page 3: ...easurements enables the unit to automatically sense the end point and LOCK the display to indicate the end point value of a measurement AUTOLOCK and user prompts help eliminate most errors in determining pH and mV values resulting in precise repeatable and error free measurements The pH6175 can also be used in non AUTOLOCK mode The model pH6175 is available with pH ORP and ATC Automatic Temperatur...

Page 4: ...t the batteries into the meter follow the procedure outlined below 1 Use two hands to flip the two buckles and battery cover to expose the battery compartment Figure 1 2 Note the polarity and insert the six AAA batteries into the battery compartment correctly 3 Replace the battery cover 4 Figure 1 Battery compartment DISPLAY KEYS FUNCTIONS A Display 1 2 3 4 5 6 7 9 10 12 11 8 Figure2 Active LCD sc...

Page 5: ...efficiency value is less over than 75 5 ATC MAN ATC indicator will be displayed if a temperature probe is connected otherwise the MAN indicator will be displayed 11 MAIN DISPLAY For pH mV and probe efficiency values 6 CAL This will be displayed when the unit enters into the calibration mode 12 SECONDARY DISPLAY For temperature in display B Keys Stand M ode Clear On Off Press and hold this key for ...

Page 6: ...used to manually enter the temperature values They have no effect on the unit when operating in ATC mode M ea Eff Stand Slope M ode Clear M ea Eff Stand Slope M ode Clear Stand Slope The Stand and Slope keys are used for pH calibration of the unit Pressing and holding the Stand key while turning on the power will change the buffer set M ea Eff Stand Slope M ode Clear Mea Eff The key is used to bri...

Page 7: ... temperature reading to stabilize then press and hold Stand key for 5 seconds to calibrate The WAIT icon will flash until the unit detects a stable reading Once the unit calibrates the first point the selected buffer remains lit up while the remaining two buffers start to flash The unit is ready to be sloped at the second buffer Note If the first buffer solution is 7 00 or 6 86 at this moment pres...

Page 8: ...ation values stored in internal memory 2 Connect the pH electrode to the BNC connector of the unit MAN icon will lit up pH icon and AUTO icon will lit up One of the buffer in the pre selected buffer set will start to flash 3 Rinse the pH probes in distilled water and immerse it in the first buffer solution Adjust the temperature reading to that of the first buffer using the up or down keys 0 0 to ...

Page 9: ...oint calibration is complete If the first buffer solution is 4 00 4 01 9 18 or 10 00 at this moment the unit will automatically exit the calibration mode Single point calibration is complete 4 Rinse the pH and ATC Temp probe in distilled water and immerse them in the second buffer solution either 4 00 4 01 or 9 18 10 01 Allow temperature reading to stabilize then press Slope key to calibrate The u...

Page 10: ...ins lit up while the remaining two buffers start to flash The unit is ready to be sloped at the second buffer Note If the first buffer solution is 7 00 or 6 86 at this moment Press the Mode key the unit will exit the calibration mode Single point calibration is complete If the first buffer solution is 4 00 4 01 9 18 or 10 00 at this moment the unit will immediately exit the calibration mode Single...

Page 11: ...ot AUTOLOCK In this case use the pH NON AUTOLOCK mode for measurements b Measurement with manual temperature compensation in the pH AUTOLOCK mode 1 Connect the pH electrode to the BNC connector of the unit The MAN icon will lit up Set unit to display the sample temperature by pressing the up and down keys 0 0 to 100 0 2 Repeat steps 2 5 of Measurement with an ATC Temp probe in the pH AUTOLOCK mode...

Page 12: ...RP electrode to the BNC connector of the unit 2 Press Mode key until mV icon and AUTO icon lit up 3 Rinse electrode with distilled water and immerse it in sample to be measured 4 Press the Mea key The WAIT icon will start flashing The unit is waiting for a stable reading The display will track the mV value as sensed by the ORP electrode 5 When the WAIT icon disappears the reading is then LOCK and ...

Page 13: ... coefficient of the pH buffers 4 00 6 86 9 18 4 01 7 00 10 01 0 4 01 6 98 9 46 4 01 7 11 10 32 5 4 00 6 95 9 39 4 01 7 08 10 25 10 4 00 6 92 9 33 4 00 7 06 10 18 15 4 00 6 90 9 28 4 00 7 03 10 12 20 4 00 6 88 9 23 4 00 7 01 10 06 25 4 00 6 86 9 18 4 01 7 00 10 01 30 4 01 6 85 9 14 4 01 6 98 9 97 35 4 02 6 84 9 10 4 02 6 98 9 93 40 4 03 6 84 9 07 4 03 6 97 9 89 45 4 04 6 83 9 04 4 04 6 97 9 86 50 4...

Page 14: ...he electrode and ATC Temp probe settled to within 30 of the buffer value 2 Buffer 4 00 4 01 9 18 and 10 01 is not correct 3 pH electrode slope is off by more than 30 of ideal slope 1 Allow sufficient time for the electrode and ATC Temp probe to stabilize re press Slope key to continue the calibration procedure 2 Check if the correct buffer is used 3 Replace the buffer and or the pH electrode Press...

Page 15: ...o 60 0 C pH Electrode Offset recognition 100 mV at pH 7 00 or 108 3 91 7mV at pH6 86 pH Electrode Slope recognition 30 at pH 4 00 4 01 9 18 and 10 01 Input impedance 1012 Ω Temperature sensor Thermistor 10 kΩ at 25 C Power Six AAA Batteries Calibration Back up EEPROM Audio Feedback All Touch Keys End Point Sensing Hold Yes Display pH mV Temp 22mm 14 5mm high LCD Ambient Temperature Range 0 to 50 C...

Page 16: ...zation have the model and serial number handy including data regarding the reason for return For your protection items must be carefully packed to prevent damage in shipment and insured against possible damage or loss Jenco will not be responsible for damage resulting from careless or insufficient packing A fee will be charged on all authorized returns NOTE Jenco reserves the right to make improve...

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