Document 6Ry64voqeKwd6o29L5Vy0ge0g

UTILITIES pH METHOD FOR O E ft 920 METER NOTE!!! WHEN pH METER IS NOT IN U$6 PLOCE IN STftNDBY BY PRESSING DOWN THE ELECTROi)0 BUTTON ftND HOLDING FOR (4) SECONDS <TWO DEC I MOL TOINTS DISPLftYED MEftNS METER IS IN STftNDBY) PRESSING ANV KEY RETURNS TO OPERATION. ftLSO STORE ELECTRODE IN 17.0 BUFFER WHEN NOT IN USE. I MANUAL CALIBRATION WITH fiTC PROBE 2 BUFFERS ...1 SELECT pH MODE. ftLSO PROPER E^EC ERODE SET BY STATUS BUTTON. 2 SELECT STD 1 BY PRESSING FUNCTljS BUTTON 3 RINSE ELECTRODES WITH DISTILLED1WATER SHAKE OFF EXCESS WATER. 4. PLACE ELECTRODES AND ATC PROBE pH BUFFER. WHEN READY ILUMINATES, ADJUST DISPLAY TO BUFFER VALUE WITH ^ OR V KEY. PRESS ENTER. THE METER STORES TH^ VALUE AND MOVES TO STD 2. .5. RINSE ELECTRODES AND ATC PROBE AND PLACE IN SECOND BUFFER. 6 WHEN READY ILUMINATES ADJUST THEilDISPLAY TO THE CORRECT BUFFER VALUE AND PRESS ENTER. TH& METER STORES THE VALUE . AND AUTOMATICALLY MOVES TO SAMPti$ MODE. 7. RINSE ELECTRODES AND ATC PROBE MD PLACE IN A STIRRED SAMPLE SOLUTION. WHEN READY ILUMINATES{i|RECORD pH READING. NOTE!!! USE MAGNETIC STIRRER Td S- R ALL SAMPLES AND BUFFERS WHEN CALIBRATING AND MEAsW ING' SAMPLE pH'S. RETURN TO STANDBY WHEN NOT IN USE. trl B/aa l-