Hanna Instruments HI 8521 - Manual (Page 5)

5
HI 8417
°C pH
mV
pH
OFF
ON
CON
CAL
°C
°C
d2
t2
d1
t1 pH
pH 6,88
7,02
4,00
4,00
9,22
10,05
pH
pH
pH
pH
BUFFER VALUES 20°C
NBS
STD
NBS
STD
NBS
STD d3
t3
THE FRONT PANEL OF HI8417
ON / OFF To turn the instrument ON and OFF. (Warning:
Push the OFF key before unplugging instrument. If unplugged before
turned off, the meter's memory will be erased).
CAL
To enter the calibration mode.
CON To confirm the calibration data.
°C / °C To set temperature for manual compensation.
pH/mV To select mV for mV, ORP or ISE measurements
or pH for pH measurements.
Large LCD on the left
This LCD displays the temperature measured by the HI7669/2W
probe or the value set manually with the keyboard. If the tempera-
ture has been set manually, the "°C" symbol will flash. When the
temperature probe is connected the "°C" symbol stops flashing. When
the temperature measured by the probe is out of range (-10 /
+125°C), the "Err3" signal appears.
Large LCD on the right
This LCD displays the pH or mV reading. The corresponding pH or mV
symbol will be displayed along with the measured value. An error
signal ("Err1", "Err2", "Err4" or "Err5") will appear on this display to
indicate when the range is exceeded or if the buffer during calibration
is wrong.
FUNCTIONAL DESCRIPTION &
SPECIFICATIONS OF HI8417