Campbell PVS5120 Series, Инструкция по эксплуатации

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PVS5120-Series Portable Samplers
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8.2.3.1 Wiring for SDI-12 Control
TABLE 8-2. SDI-12 Wiring (PVS5120CBL-L Cable)
Wire Description Connection
Green SDI-12/Pulse Out Datalogger control port (C1, C3, C5, or C7)
Blue Pulse Start Not used
Purple Ground Datalogger G
Gr
e
y Ground
Connects to one lead on the optional
water detection probe
Yellow Water Sensor
Connects to one lead on the optional
water detection probe
White RS-485 A– Not used
Black RS-485 B+ Not used
Red Fault Not used
Brown RG
Datalogger’s
⏚
8.2.3.2 SDI-12 Programming
In CRBasic , use the SDI12Recorder() instruction to program the datalogger to
control the sampler. This instruction sends a request to the sensor to make a
measurement and then retrieves the measurement from the sensor. The
sampler returns the following four status values after it has completed the
sampling procedure and the distribution arm has advanced as necessary.
1. Sample bottle number: Bottle number that the sample is deposited in (1
to 24).
2. Sample number: The number of samples collected for this bottle.
3. Response code: Numeric code ranging from 0 to 8 that represents
different conditions (TABLE 8-3 ).
4. Sampler battery voltage: Returns the battery voltage just before that
sample was collected.