Manual | NEP-695
Status: Final | Not confidential
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V20221009
11 Appendix C: Multiple turbidity measurements in statistical analysis
with optical wiping
11.1 Script objectives
This script can be loaded onto all NEP-695 logging probes using the CR-300 PW200 application. The
script turns on the sensor. After the warm up time elapses, it performs an optical wiping followed by
multiple turbidity measurements and stores data at each scan (every five minutes). Then the script calls
two data tables and stores the data within the datalogger:
• The script records the wiping status (if jammed or not) of the probe (Wipe_stats) and the full statistical
measurements (Turbidity, Median, Average, Minimum, Maximum) in NTU within a data table (Table 1) at
each scan (every five minutes).
• The script records the minimum default CR300 Battery Voltage (BattV) and the processor temperature
measurement (PTemp_C) within another data table (Table 2) once a day.
The script uses the SDI-
12 command “M1!” to trigger a wipe, and the command “M6!” to perform the full
statistical measurements.
11.2 Wiring & NEP-5000 configuration
Please refer to
section 6.1
“Connect NEP-695 to a single NEP-5000” to properly setup and connect the
logging probe to the NEP-5000 sensor.
Connect the NEP-5000 probe to your Windows computer using the Blue Box. Configure the NEP-5000
ranges using the NEP-5000 software. Apply SDI-12 settings.
To commit above settings to permanent memory please press set followed by save calibration
Please refer to the NEP-5000 manual for more information.
