Hach 5740sc, Руководство пользователя, Страница: 28 / 50

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sc1000 Operation
5.4.1 Selecting Atmospheric Pressure
1. Tap the bottom-left of the screen to display the pop-up toolbar and press
MAIN MENU
.
2. From the Main Menu, select SENSOR SETUP and press
ENTER
.
3. Select the appropriate sensor if more than one is attached and press
ENTER
.
4. Select CONFIGURE and press
ENTER
.
5. Select AIR PRESS/ALT UNITS and tap on the dark-blue highlighted area to the
far-right. Select the appropriate units from the list box. Press
ENTER
to confirm the
selection.
6. Select AIR PRESS/ALT and tap on the dark-blue highlighted are to the far-right.
Change the value using the keypad and press
ENTER
to confirm the select.
Note: AirPress/Alt must be correct for proper measurement of % saturation and operation of air
calibration.
5.5 Sensor Status Menu
SELECT SENSOR
ERROR LIST—See section 7.1 on page 37 .
WARNING LIS—See section 7.2 on page 37 .
5.6 Sensor Setup Menu
SELECT SENSOR (if more than one sensor is attached)
CALIBRATE
AIR CAL
Perform an air calibration of the sensor (slope calibration). See section 5.7.1 on page 30 .
SAMPLE CAL
Enter a value for the DO concentration as determined by another sensor or independent method. The instrument
performs an offset calibration based on the entered value. See
section 5.7.2 on page 31 .
TEMP ADJUST
Displays the measured temperature and allows the user to adjust the temperature by ±15 °C.
DEFAULT SETUP
Restores the gain and offset values to 1.0 and 0.0, respectively, and restores the sensor code to default.
CONFIGURE
EDIT NAME
Enter up to a 10-digit name in any combination of symbols and alpha or numeric characters.
MEAS UNITS
Select the appropriate measurement units to display. Choose from: mg/L, ppm, or percent. Default: ppm
TEMP UNITS
Select Celsius (°C) or Fahrenheit (°F); Default: °C
AC FREQUENCY
Choose 50 or 60 Hz depending on the power line frequency for optimal noise rejection. Default is 60 Hz.
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