Hach 900 MAX - Manual (Page 118)

Page 116
Programming Features
8990apdx_pfeatures.fm
Appendix B
Options Menu Features
1. From the Main Menu, select OPTIONS .
Optional Programs
• Time and Date for internal real-time clock
• Calibrate the sample volume
• Advanced Features
• Adjust level readings of optional integral flow meter
Setting the Time and Date
1. From the Main Menu, select OPTIONS>TIME/DATE
2. Adjust the real time clock and date setting, using CHANGE AM/PM and
CHANGE MONTH keys.
Volume Calibration
From the Main Menu, select OPTIONS> VOLUME CALIBRATION .
The liquid sensor on the sampler offers unparalleled sample accuracy and
repeatability. For most site conditions, no volume calibration is necessary, and
the volume collected is accurate within 10% of the requested volume. To
improve volume accuracy to 5%, or when sample volume accuracy is
adversely affected by unusual site conditions (such as the sample source
located higher than the sampler pump), or when the liquid sensor is disabled,
then volume calibration should be performed.
Sensor Disabled
When the sensor is disabled, you must calibrate the sample volume(s). If
more than one volume is programmed (such as when using storm water or
upset sampling), you must calibrate each volume independently (see chart
below).
11:00 AM 21 - APR - 01 OPTION MENU
TIME / DATE
VOLUME
CALIBRATION
ADVANCED
OPTIONS LEVEL
ADJUST
READY TO START
11:00 AM 21 - APR - 01 TIME / DATE
ACCEPT
CHANGE
AM / PM
_ _: _ _ AM _ _ -APR- _ _
CLEAR
ENTRY
MODE: 12-HR FORMAT
CHANGE
MONTH
USE +/- KEY TO CHANGE 12/24 HR FORMAT