Campbell Scientific PVS4100/4120/4150 Portable Automatic Samplers - Manual (Page 36)

Section 3. Operation
3-6
3.4 Test Procedure
1. Set volume control tube to 200 cc.
2. Set level probe 1” above bottom of volume control tube.
3. Turn on power. Place the “RUN/OFF” switch in the “RUN” position.
After an initial delay of 15 to 20 seconds, the display will show a two line
message, the top line displaying SAMPLER HALTED and an alternating
message on the second line displaying why the sampling procedure was
interrupted as well as the event time and date.
4. Enter the following sampling program:
a) Set purge time to 10 seconds. See OTHER OPTIONS
b) Set interval time to 2 minutes. See SAMPLE INITIATION
c) Set program type to composite. See PROGRAM TYPE
d) Set to terminate after 2 samples.
e) Press RESTART, RESTART (to confirm)
5. View the following displays:
a) Samples taken - should read 0
b) Remaining time - should be counting down from 2 minutes.
6. Sampling should begin when remaining time indicator reaches 0.
7. Upon completion of sample, view the following displays:
a) Samples taken - should read 1.
b) Remaining time - should be counting down from 5 minutes.
8. Press MANUAL PURGE. Press again to confirm.
9. Press MANUAL ADVANCE. Press again to confirm.
10. Press MANUAL SAMPLE. Press again to confirm.
11. If equipped with sample container full option, short circuit level probes in
container (no dangerous voltage present - 16 Vdc). The message
“SAMPLER HALTED External Stop” should appear on the display, the
bottom line flashing.
12. Press RESTART, RESTART, the message “RESTART <Completed>”
should appear on the display.
3.5 Troubleshooting
SAMPLER INOPERATIVE: Check supply voltage.
POWER ON BUT PUMP WILL NOT START: Check wiring from
sampler controller to pump. Ensure controller is properly connected
into harness.
a) Pump defective.
b) Sampler controller defective.