TABLE OF CONTENTS
1. GENERAL DESCRIPTIONS.......................................................
1
2. FEATURES.............................................................................
1
3. SPECIFICATIONS....................................................................2
4. FRONT PANEL DESCRIPTION..................................................
4
4-1 Display...........................................................................4
4-2 Power Off/On button......................................................
4
4-3 Data Hold button............................................................4
4-4 / button...................................................................℃℉ 4
4-5 LCD Contrast Ad
ust VR..................................................
4
4-6 Memory Record button...................................................
4
4-7 Memory Call button........................................................
. button...........................................................4
4-9 Zero button....................................................................4
4-10 % Salt button................................................................ 4
4-11 DO/O2 Selector..............................................................
4
4-12 O2 Cal. button................................................................4
4-13 MT. ( Mountain Hei
ht ) button.......................................
4
4-14 Battery Compartment/Cover............................................ 4
4-15 Probe Input Socket ........................................................
4
4-16 RS-232 Output Terminal..................................................4
4-17 Oxy
en Probe handle......................................................4
4-18 Temperature sensor........................................................4
4-19 Probe head with diaphra
m set.......................................
4
4-20 Protection cover for probe head.......................................4
4-21 Oxy
.........................................................
4
5. MEASURING PROCEDURE.......................................................
5
5-1 Calibration................................................................... 5
5-2 Dissolved Oxygen ( DO) measurement ..............................6
5-3 Oxy
en in Air ( O2) measurement .....................................8
5-4 Temperature measurement .............................................. 8
6.
AUTO POWER OFF DISABLE and LCD CONTRAST
ADJUSTMENT.........................................................................11
7. RS232 PC SERIAL INTERFACE................................................. 12
8. PROBE MAINTENANCE............................................................14
9. BATTERY REPLACEMENT....................................................... 16