Veris Technologies VIS_NIR Spectrophotometer Probe - Operating Instructions - Manual (Page 41)

OM17-P4000VIS-NIR
5-4
Field Operation
VIS/NIR Probe
Checking Electrical Signal Continuity and Electrode Isolation
It is recommended that you routinely check the EC signal to verify that all functions are
working properly. See Maintenance and Lubrication Section for a step-by-step
procedure. It is advisable to perform this test on a routine basis (weekly or every 20-25
hours of data collection) to ensure you are obtaining reliable data.
Operation
Before probing refer to Section 4 for electronics operation. Remove hairpin from string
pot piston (Figure 7). Set probe speed --- not recommended over 3cm/sec. This is
adjustable via the probe speed flow control on the side of the control panel. (Figure 9)
Begin probing: with probe mast vertical, insert probe into soil until top of window
is not visible. (Figure 8.) This starting position is recommended so ambient light
will not be collected.
Pressing Probe button begins storing spectrum data and auxiliary data until
probe is stopped or raised. Once insertion is initiated, do not stop or reverse
unless problem has occurred or desired depth is achieved. Data recording stops
when probe is raised. GPS and Log lights must be green for data to be recorded.
While probing monitor the following: Streaming spectra rate and Streaming Aux
Display. If either of these is not streaming, stop immediately and diagnose the
problem. See Section 7 Troubleshooting.
After 10 minutes the program will alert the user to take a manual reference. Several
manual references may be required.
KEEP FEET CLEAR
OF FOOT AND
PROBE .
Figure 7 Figure 8