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FUNCTIONAL DESCRIPTION HI8915
pH
ON
OFF
HOLD
mV
°C
pH
HI 8915
ATC
pHmeter
+-
mV OUTPUT
SLOPE
4.01
10.01
OFFSET
6.86
7.00
CALIBRATION
1
7
2
9
4
10
5
11
8
3
6
12
1) BNC socket for combination pH or ORP electrodes.
2) Liquid Crystal Dysplay (LCD).
3) HOLD key, to freeze the reading on the display.
4) mV key, to display the mV (ORP) readings when using an
ORP electrode; or the mV equivalent to the pH values when
using a pH electrode.
5) OFFSET trimmer for OFFSET calibration of pH
6) + recorder output (mV output, positive connection).
7) Phono plug socket for HI7669AW temperature probe.
8) ON/OFF key, to switch the instrument on or off.
9) pH key, to display the pH value.
10) °C key, to display the temperature measurement (when the
temperature probe is disconnected, the LCD will show 25°C).
11) SLOPE trimmer for SLOPE calibration of pH.
12) - recorder output (mV output, negative connection).
SPECIFICATIONS HI8915
HI 8915
Range pH 0.00 to 14.00
mV ±1999
°C 0.0 to 100.0
Resolution pH 0.01
mV 1
°C 0.1
Accuracy pH ±0.01
(@20°C/68°F) mV ±1
°C ±0.5
Typical EMC pH ±0.02
Deviation mV ±1
°C ±0.8
pH Calibration Manual 2 point through
offset and slope trimmers
Offset Calibration ±1 pH
Slope Calibration from 85 to 105%
Temperature Automatic from 0 to 70°C (32 to 158°F)
Compensation or fixed at 25°C (77°F)
with temperature probe detached
pH Electrode HI 1230B combination, double-junction,
gel-filled with BNC connector
and 1 m (3.3') cable (included)
Temperature HI 7669AW (included)
Probe
Input Impedance 10
12
ohm
Recorder Output 100 mV/pH
1mV/mV
10mV/°C
Battery Type 1 x 9V
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 53 mm
(7.3 x 3.2 x 2.1’’)
Weight 265 g (9.3 oz.)
