JENCO 6250 Operation Manual Download Page 15

 

14 

 
 
 
TEMPERATURE MEASUREMENTS 

 
The two model 6250/6219 can be used to measure temperature 
independently with ATC/Temp probe with using the pH electrode. 

 
1.1 

If the pH electrode is not connected to the instrument, the pH input 
must shorted to the reference input by the protect cap. 

1.2   Connect the ATC/Temp probe to the input connector. Refer to 

Figure 2. The ATC/MANUAL LED lamp will change from red 
color to    green color and enter into ATC mode. 

1.3   Place the temperature sensor in the media to be measured. The 

measured temperature is displayed.   

 

Er3 will be displayed if the temperature is out of the temperature 
measurement 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 will be displayed if the temperature is out of the temperatue 
range 0 to 50.0 degree C, Please press MODE key to enter into mV 
or Ion mode for the other measurements. 

 

mV MEASUREMENTS 

 
A combination electrode can be used in place of the working electrode and 
the reference electrode. The MANUAL indication will be on if the 
ATC/Temp probe is not connected to the instrument. 
 
1.1    Connect the working electrode to the input BNC connector and the 

reference electrode to the input Pin connector. Refer figure 2. 

1.2   Press the MODE key for the instrument to enter into mV mode     

and press RESOL. key to select optimum resolution. 

Summary of Contents for 6250

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...

Page 5: ...4...

Page 6: ...5...

Page 7: ...6...

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...

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