PVS5120-Series Portable Samplers
53
b. From the
Connect
screen, click the
Send New
button. Browse to find
the
CRBasic
program that controls or monitors the sampler. Click
Open | Send
.
8.2.6.1 Wiring for Pulse Control
TABLE 8-9. Pulse Control Wiring (PVS5120CBL-L Cable)
Wire
Description
Connection
Green
SDI-12/Pulse Out
PLC or datalogger control port*
Blue
Pulse Start
External device 0 to 5 V TTL
Purple
Ground
External device ground
Gr
e
y
Ground
Optional water detection probe
Yellow
Water Sensor
Optional water detection probe
White
RS-485 A–
MD485 RS-485 A port**
Black
RS-485 B+
MD485 RS-485 B port**
Red
Fault
Not used
Brown
RG
MD485 RG port**
*Connect only if producing a pulse after a successful sample
**Only use if monitoring the sampler over RS-485 for status feedback
9. Maintenance and Troubleshooting
The PVS5120 is designed to give years of trouble-free service with reasonable
care. However, if factory repair is needed, first contact a Campbell Scientific
application engineer to obtain an RMA (Return Materials Authorization)
number. An RMA number and product-safety documents (forms are provided)
are required prior to any repair shipments being accepted at Campbell
Scientific. See the
statement at the beginning of this manual for
more information.
9.1 Maintenance
The following procedures should be performed periodically based on use of
sampler.
9.1.1 Meter Chamber Assembly
1. Disconnect power.
2. Open metering chamber by removing wing nuts and chamber cover.
3. Clean volume control tube and level sensing probe with mild detergent.
Alternatively, exchange tube and probe with clean set. Do not use any
cleaner which may be harmful to the metering chamber cover. Do not use
solvents such as acetone, benzene, carbon tetrachloride or lacquer thinners.
Grease and oil may be removed with kerosene or aliphatic naphtha
(nonaromatic).
Summary of Contents for PVS5120 Series
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Page 70: ...Appendix A Sample Transport Velocity A 2...
Page 78: ...Appendix B Example Programs B 8...
Page 86: ...Appendix C Monitoring Sampler Status via RS 485 C 8...
Page 96: ...Appendix G Generic Modbus Control G 4...
Page 100: ...Appendix H ISO5667 Conformity H 4...
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