Hach LDO User Manual

Also see for LDO: Addendum-Operation User manual

Hach LDO User Manual Manual pdf 22 page image

22Operation5.4 Sensor Setup MenuSELECT SENSOR (if more than one sensor is attached)CALIBRATEAIR CALPerform an air calibration of the sensor (slope calibration). See section 5.6.1 on page 24.SAMPLE CALEnter a value for the DO concentration as determined by another sensor or independent method. The instrumentperforms an offset calibration based on the entered value. See section 5.6.2 on page 25 and section 5.6.3 on page 25.SET CAL DEFLTRestores the gain and offset values to 1.0 and 0.0, respectively, and restores the Sensor Cap Code to default.CONFIGUREEDIT NAMEEnter up to a 10-digit name in any combination of symbols and alpha or numeric characters.ALT/PRESS UNITSChoose pressure units in feet, meters, mm Hg, or torr.ALT/PRESSEnter either altitude or air pressure. Correlates to the pressure units setting. Range: –5000 to 15000Note: The Alt/Press setting must be correct for proper measurement of % saturation and proper operation of aircalibration.TEMP UNITSSelect Celsius or Fahrenheit.MEAS UNITSSelect the appropriate measurement units to display. Choose from: mg/L, ppm, or percent.SALINITYUser-entered value. Range: 0.00–250.00 parts per thousand salinitySENSOR CODEEnter the unique code supplied with each sensor cap. The code ensures the preprogrammed factory calibration isadjusted for each sensor cap. The code consists of either 10-digits or 3-digits followed by a period. The period followingthe three digit code must be entered to complete the code entry.SET DEFAULTSResets the sensor configuration to default settings.SIGNAL AVEAverages readings over a specified time interval. Default is 60 sec. Increase response by decreasing the time interval.Fastest response is at 0 sec.LOG SETUPAllows user to select data logging interval of DO and temperature readings.