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Page 1: ...OPERATION MANUAL MODEL 6250 6219 SERIES MICRO COMPUTER BASED PH mV ION TEMP METER JENCOELECTRONICS LTD MANUFACTURER OF PRECISION INSTRUMENTS...
Page 2: ...touch keys with audio feedback buffer recognition electrode slope recognition ATC Automatic Temperature Compensation capabilities temperature measurement to 0 1 degree C visual and audio operational e...
Page 3: ...you must replace the new batteries when OFF is display ie automatic turn OFF to prevent incorrect measurements 2 AOpen battery compartment by pushing closure up This is most easily open by using a coi...
Page 4: ...3 Figure 1 Battery Compartment...
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Page 8: ...9 8 conc ION Accuracy 2 LSD Resolution 0 05 conc range 0 00 to 25 00 conc 0 1 conc range 25 00 to 50 0 conc 0 2 conc range 50 0 to 119 8 conc Operating temperature 0 to 50 Power supply Six AAA batteri...
Page 9: ...the instrument in pH or mV mode But not for ion mode 6 CLEAR key The CLEAR key is used to reset the instruments mode and clear the pH ion calibration values The CLEAR key has a delayed reaction of 2 s...
Page 10: ...robe 1 1 Connect the pH electrode and the ATC Temp to the connectors of the instrument Refer to the Figure 2 The ATC annicator model 6250 green color ATC LED lamp model 6219 will be on Press the MODE...
Page 11: ...ffer 7 00pH or buffer 6 86pH rinse with distilled water and immerse in buffer 4 01pH 10 01pH model 6250 model 6219 or buffer 4 00pH 9 18pH model 6250C model 6219C The instrument will display the tempe...
Page 12: ...iator model 6250 or green color STAND LED lamp Model 6219 will start flash Per Figure 3 2 2 Rinse the pH electrode in distilled water and immerse in buffer 7 00 model 6250 model 6219 or 6 86 model 625...
Page 13: ...the temperature of the second buffer as set in 2 5 Refer to Table 1 If the reading still drifts repeat 2 6 until a stable reading is obtained The micro computer inside the instrument will calculate a...
Page 14: ...pH value measured is out of the 2 000 to 16 000 pH range 2 Measurement with manual temperature compensation in the pH mode 2 1 Connect the pH electrode to the connector of the instrument Refer to Fig...
Page 15: ...rement range 5 0 to 125 0 degree C Once the temperature brought within range Er3 will disappear and the correct temperature reading will be displayed It is not necessary to press the CLEAR key Er4 wil...
Page 16: ...s used to handle ion standards and samples should always be cleaned with deioned water Rule B THe standard solutions and samples should always be at the same temperature Rule C A magnetic stirrer shou...
Page 17: ...20 0 conc Er2 will be display if the STAND II key is pressed before the STAND I key 1 6 For dual point standardization remove the electrodes from the dilute standard rinse with the concentrate standar...
Page 18: ...35 4 020 6 842 6 979 9 107 9 928 40 4 030 6 836 6 973 9 074 9 891 45 4 042 6 832 6 969 9 044 9 859 50 4 055 6 831 6 968 9 017 9 831 The actual reading of the instrument can differ from the values show...
Page 19: ...grams for each computer language and amore detailed explanation of the software driver are included in the accompanying disk PREPARING THE METER FOR OPERATIONS VIA THE RS 232C INTERFACE The Meter come...
Page 20: ...250 MODEL 6219 RS232 PARAMETERS BAUD RATE 2400 FIXED PARITY SOFTWARE DRIVER CONTROLLED DATA BITS 8 STOP BIT 1 PROTOCOL SOFTWARE DRIVER CONTROLLED WARRANTY Jenco Instruments Ltd Warrants this product t...
Page 21: ...will be charged on all unauthorized returns NOTE Jenco Instruments Inc reserves the right to make improvements in design construction and appearance of our products without notice JENCO INSTRUMENTS IN...
