JENCO VisionPlus pH618N Operation Manual Download Page 12

not been the result of abuse or misuse, within the warranty period, 
please return-freight-prepaid and the correction of the defect will be 
made free of charge. If you purchased the item from our Jenco 
distributors and it is under warranty, please contact them to notify 
us of the situation. Jenco Service Department alone will determine 
if the product problem is due to deviations or customer misuse. 

 

Out-of-warranty products will be repaired on a charge basis. 

RETURN OF ITEMS 

Authorization must be obtained from one of our representatives 
before returning items for any reason. When applying for 
authorization, 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 improvements in design, 

construction and appearance of our products without notice. 

 

(Version:05202009) 

 

 

 

JENCO INSTRUMENTS, INC.

 

7968 Arjons Drive, Suite C 
San Diego, CA 92126 USA 
TEL: 858-578-2828 
FAX: 858-578-2886 
E-Mail: [email protected]; [email protected] 
Website: www.jencoi.com

 

 

JENCO ELECTRONICS, LTD.

 

P.O. BOX 117 Jhong Jheng RD, Linkou Shiang, 
Taipei, Taiwan 
TEL: (886-2)2601-6191 
FAX: (886-2)2601-7206 
E-Mail:[email protected] 

 

SHANGHAI JENCO INSTRUMENTS, LTD.

 

18 Wang Dong Zhong RD,Sijing Town, Songjiang 
Shanghai, China

 

TEL: 86-21-5761-9599 
FAX: 86-21-5761-9598 
E-Mail:[email protected] 
Website:www.jenco.com.cn 

 
 

 

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Summary of Contents for VisionPlus pH618N

Page 1: ...Operation Manual MODEL pH 618N Microcomputer Based pH Temperature Pocket Meter pH618N...

Page 2: ...ption 3 B VisionPlus Graphical Display 3 OPERATION MODES AND KEYPAD OPERATIONS 4 A Operation Modes 4 B Keypad Operations 4 USING VISIONPLUS pH 618N 5 A Power ON OFF 5 B Set Date and Time 5 C Select Bu...

Page 3: ...nstrument can operate within specifications for approximately2 3 hours after low battery indicator appears 1 Shown in the right figure 2 Take off the battery cover 3 Remove all of the old batteries an...

Page 4: ...r 5 Electrode ATC assembly Electrode cap is not shown B VisionPlus Graphical Display 1 DATE MM DD YY 2 HOLD mode indicator 3 MEASURE mode indicator 4 CALIBRATION buffer s 5 TIME HH MM 24H format 6 pH...

Page 5: ...et Mode is used to change date and time 6 Buffer Select Mode Buffer Select Mode is used to select the buffer set which can either be 7 00 7 00 4 01 10 01 or 6 86 6 86 4 00 9 18 B Keypad Operations Key...

Page 6: ...d Scrolls through stored data Date and Time Set 0 second Decreases current number SCROLL Buffer Select 0 second Selects new buffer set USING VISIONPLUS pH 618N A Power ON OFF Press HOLD key for 2 seco...

Page 7: ...H meter will perform end point sensing to determine when the calibration reading is stable Meter is calibrated when WAIT icon disappears and the unit will automatically enter the next point calibratio...

Page 8: ...E and M XX icons will appear indicating the reading has been saved and stored in memory location XX The unit will automatically returns to Measure Mode and ready to perform other task Note The Model p...

Page 9: ...trode ATC assembly as shown in the right figure 2 Remove the old electrode from the electrode collar 3 Insert a new electrode make sure the electrode fit back into the meter correctly 4 Screw back the...

Page 10: ...0 00 to14 00pH range Over Range or Recalibrate OVER 0 0 60 0 C pH CAL a pH STAND b pH SLOPE a Offset 7 00pH mV 90mV Offset 6 86pH mV 98 3mV b New slope ideal slope by 30 Use a new buffer solution Repl...

Page 11: ...Electrode Slope recognition 30 at pH 4 00 4 01 9 18 and 10 01 Input impedance 1012 Temperature Temperature sensor Thermistor 10 k at 25 C Temperature unit Default in factory General Power Meter LR44...

Page 12: ...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 pa...

Page 13: ...618N TC CHEN 2008 7 20 K618N 01 2009 4 3 02 2009 4 3 01 618 MANUAL 618 09 01 14 P2 09 4 3 P2 5 P8 P10 P11 BAT 09 4 15 3M KCL FOR 2 HOURS...

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