Hanna Instruments HI 9143 - Manual (Page 9)

16 17
BATTERY REPLACEMENT
When the batteries become
weak, the "LOBAT" indication
appears on the LCD to warn
the operator that the display
will be shut-off after about 4 hours of use to
prevent erroneous readings due to low voltage.
Battery replacement must only take place in a
safe area using 1.5V AA alkaline batteries.
In order to replace the
batteries, simply remove
the two screws on the
rear cover of the instru-
ment and replace all four
batteries with new ones,
while paying attention to
the correct polarity.
A 12 Vdc power source can also be used to
power the unit. Simply unscrew the protective
cap on the top of the instrument and plug the
power adapter into the socket.
Note: The instrument uses the following con-
figuration.
Use the HANNA adapters (such as HI 710005
or HI 710006) with proper polarity configuration.
HI 9143 and HI 9145 can also run on other
adapters. In this case, check the correct polar-
ity of the adapter before connecting it to the
meter.
ACCESSORIES
HI 76407/4 DO probe with 4 m (13') cable
HI 76407/10 DO probe with 10 m (33') cable
HI 76407/20 DO probe with 20 m (66') cable
HI 7041S Refilling electrolyte solution,
30 mL
HI 76407A/P Spare DO membrane (5 pcs)
HI 710005 115 Vac/12 Vdc adapter, US
plug
HI 710006 230 Vac/12 Vdc adapter, Eu-
ropean plug
HI 710012 240 Vac/12 Vdc adapter, UK
plug
HI 710013 230 Vac/12 Vdc adapter, South
African plug
HI 710014 230 Vac/12 Vdc adapter, Aus-
tralian plug
LOBAT
SAMPLE
°C
ppm
+ -