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FUNCTIONAL DESCRIPTION
1) Battery Compartment
2) Probe Connector
3) Liquid Crystal Display
4) ON/OFF Button
5) CAL Button (to enter or exit calibration mode)
6) FACTOR button (to select altitude F1
and salinity F2)*
7) UP and DOWN arrow keys (to select F1
and F2 levels)*
8) HOLD key (to freeze displayed value)
9) RANGE button (to select ppm or % of
saturation)
10) Power Jack for 12VDC adapter
19) LOW BAT indicator
20) SAMPLE indicator (to indicate the mea-
surement mode)
21) F1 indicator (altitude factor) *
22) F2 indicator (salinity factor) *
23) % or ppm mode indicator
24) Temperature (and factor*) display
* Note: HI 9143 only.
HI 9143
Microprocessor
Auto Cal
Dissolved
Oxygen Meter
CAL
ON/OFF
RANGE
FACTOR
85
9
67
23
24
4
19
20
21
22
3
210
SAMPLE
LOBAT
SAMPLE
HOLD
CAL
F1
F2
HOLD
ppm
ppm
%
°C
°C
1
2
10
3