Campbell PVS5120 Series, Instruction Manual

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PVS5120-Series Portable Samplers
30
8.2.2 Time-Based Control
Time-based control allows the PVS5120 to run as a stand-alone sampler.
Status values are not reported unless a datalogger is used for monitoring the
sampler. A datalogger can be used to monitor the sampler over RS-485 and
uses either the PakBus® or Modbus® protocol. An MD485 is also required
(see Appendix C , Monitoring Sampler Status via RS-485
(p. C-1)
).
If running with time-based control, the user must sync the
clock of the sampler. This is described above in Section
6.1.1 ,
Clock Tab
(p. 10)
.
1. Once connected to the VSC100, click the Sampler Settings tab (FIGURE
8-5 ).
a. Set the Control Type to
Time
.
b. If using PakBus® to monitor the sampler over RS-485, set the
PakBus Address .
c. If using Modbus® to monitor the sampler over RS-485, set the
Modbus Address .
d. Set the
Number of Sampler Bottles
.
e. Set the Samples Per Bottle . It can range from 1 to 999 . This setting
is ignored if Never Full is set to On/Enable .
f. Typically leave the Never Full Operation disabled.
g. If the Auto Deploy routine has been run, the Purge Time should
already be set. If not using Auto Deploy, enter the amount of time the
sampler hose is evacuated before and after the sample is collected.
h. If a Water Present Sensor is present, click to install. This sensor is
wired to the sampler control cable. See Section 7.3.1 , Water
Detection Probe
(p. 24)
, for more information.
A
T
CAUTION