34
MODEL SOLU COMP II SECTION 6.0
CALIBRATION
a. Press MENU. The main menu screen appears. Choose Calibrate.
b. Choose Sensor 1 or Sensor 2. For a single input configuration, the
Sensor1 Sensor2 screen does not appear.
c. Choose Measurement.
d. Choose BufferCal.
e. Choose Manual.
f. Choose Buffer1.
g. Rinse the sensor with water and place it in buffer 1. Be sure the glass bulb
and junction are completely submerged. Swirl the sensor. Also place a
thermometer in the buffer. Press ENTER
h. The top line shows the actual buffer reading (S1 Live).Wait until the read-
ing is stable, then note the temperature. Change the pH in the second line
to the pH of the buffer at the measured temperature. Press ENTER.
i. The screen at left appears. Choose Buffer2. Rinse the sensor and ther-
mometer with water and place them in buffer 2. Be sure the bulb and junc-
tion are submerged. Swirl the sensor.
j. The top line shows the actual buffer reading (S1 Live).Wait until the read-
ing is stable, then note the temperature. Change the pH in the second line
to the pH of the buffer at the measured temperature. Press ENTER.
k. If the calibration was successful, the analyzer will display the offset and
slope (at 25°C).
l. If the calibration was successful and if two sensors are wired to the ana-
lyzer, the Calibrate? screen appears. Choose the other sensor and
repeat steps c through j.
m. If the slope is out of range (less than 45 mV/pH or greater than 60 mV/pH),
an error screen appears. The display then returns to step g. Repeat the
calibration.
n. To return to the main display, press MENU followed by EXIT.
CCaalliibbrraattee
Hold
Program Display
Calibrate?
SSeennssoorr11
Sensor2
Calibrate?
Sensor1
SSeennssoorr22
CalSensor1?
MMeeaassuurreemmeenntt
Temp
S1BufferCal?
Auto
MMaannuuaall
S1ManualCal?
BBuuffffeerr11
Buffer2
S1 Standardize
Slope
BBuuffffeerrCCaall
S1Live 7.00pH
Buf1
00
7.00pH
S1Live 10.00pH
Buf2
11
0.00pH
S1Offset 6mV
Slope 59.16@25
°C
Calibration Error!
S1ManualCal?
Buffer1
BBuuffffeerr22
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