User Guide

14
SPECIFICATIONS HI 8424
43
BATTERY REPLACEMENT
All meters are powered by a 9V battery that is located on the rear of
the instrument.
The meters provide the following, when the battery becomes weak:
- HI 8014, reaching a certain minimum threshold, automatically
switches the LCD off.
- HI 8314, HI 8915, HI 8424 display a blink-
ing additional decimal point on the bottom
left hand side of the LCD.
- HI 9214 and HI 931000 display "Eb".
- HI 9622 displays "BAT" on the bottom left
hand side of the LCD.
When the low battery indicator appears only a few hours of battery
life is remaining. It is recommended that the battery be replaced
immediately, since a low battery may also result in loss of calibration
data or unreliable measurements.
Replacement must only take place in a non-hazardous area using an
alkaline 9V battery.
To access the battery, remove the battery cover by applying pressure
in the direction indicated below. Replace the old battery with a new
one, while paying attention to its polarity.
Note: The instrument should be recalibrated after changing the
battery.
HI 8114
HI 8414
HI 9214
9 VOLT BATTERY
SLIDE
HI 9214
HI 8014 - HI 8314
HI 8424 - HI 8915
HI 9622
HI 931000
HI 8014
HI 8314
HI 8424
HI 8915
BATTERY
BAT
pH
HI 8424
Range pH 0.00 to 14.00
mV ±399.9 mV
±400 to ±1999 mV
°C 0.0 to 100.0
Resolution pH 0.01
mV 0.1mV / 1mV
°C 0.1
Accuracy pH ±0.01
(@20°C/68°F) mV ±0.2mV / ±1mV
°C ±0.4
Typical EMC pH ±0.02
Deviation mV ±0.2 / ±1
°C ±0.4
pH Calibration Automatic 2 point with
3 memorized standard buffers
(pH 7.01, 4.01 or 10.01)
Offset Calibration ±1.0 pH
Slope Calibration from 70 to 108%
Temperature Automatic from 0 to 100°C (32 to 212°F)
Compensation or manual without temperature probe
Electrode HI 1230B combination, double-junction,
gel pH electrode with BNC connector
and 1 m (3.3') cable (included)
Temperature HI 7669AW (included)
Probe
Input Impedance 10
12
ohm
Battery Type 1 x 9 volt
Life 100 hours of continuous use
Environment 0 to 50°C (32 to 122°F);
max 95% RH non-condensing
Dimensions 185 x 82 x 45 mm
(7.3 x 3.2 x 1.8")
Weight 520 g (1.1 lb.)