Hach-lange LDO Sensor User Manual download pdf (Page 9)

Operation

User navigation

Refer to the controller documentation for keypad description and navigation information.

Configure the sensor

Use the Configure menu to enter identification information for the sensor and to change options for

data handling and storage.

For information about sensor installation, refer to Install the sensor on page

Make sure that all of the Configuration menu values are correct for the application.

1. Go to MENU>SENSOR SETUP>[Select Sensor]>CONFIGURE.

2. Select an option, ENTER. The list of available options is shown in the table below.

Option Description

EDIT NAME Changes the name that corresponds to the sensor on the top of the measure screen. The

name is limited to 10 characters in any combination of letters, numbers, spaces or

punctuation.

SET UNITS TEMP–Sets the temperature units to °C (default) or °F.

MEASURE–Set the measurement units in mg/L, ppm or % .

ALT/PRESS–Set the altitude in m or ft, or set the atmospheric pressure units in mmHg or

torr. (Default value = 0 ft)

ALT/PRESS Enter the value of the altitude or atmospheric pressure. This value must be accurate to

complete % saturation measurements and calibration in air. (Default = 0 ft).

SALINITY Enter the salinity value. Salinity range: 0.00 to 250.00 parts per thousand (‰). Refer to

Enter a salinity correction value on page 10 for more information. (Default value = 0)

SIGNAL AVERAGE Set the time interval to average signal in seconds

CLEAN INTRVL Set the time interval for manual sensor cleaning in days (Default value = 0 days. A value

of 0 days disables the clean interval.)

RESET CLN INTRVL Set the time interval to the last saved clean interval

LOG SETUP Sets the time interval for data storage in the data log—0.5, 1, 2, 5, 10, 15 (default), 30,

60 minutes.

SET DEFAULTS Restores the configurable default values for the sensor. Does not change the setting for

slope or offset.

Enter the atmospheric pressure value

The factory setting for atmospheric (air) pressure is 0 ft, or sea level. To change the default value,

use the steps in this procedure. The adjustment for air pressure is entered as either elevation or as

pressure units (preferred).

Note: Accurate air pressure is critical for saturated air calibration (Calibration with air on page 11

). Use only

absolute pressure, not adjusted. If the absolute air pressure is not known, use the correct elevation for the location.

1. Go to MENU>SENSOR SETUP>[Select Sensor]>CONFIGURE>SET UNITS>AIR PRESS/ALT

UNITS.

2. Select one of the unit options listed:

Option Description

ft Feet—unit of measure for elevation

m Meters—metric unit of measure for elevation

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Hach-lange LDO Sensor User Manual Page 9

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