Campbell CR3000 Micrologger, Руководство оператора

Страница: 386 / 644

Section 8. Operation
386
With reference to the figure Programmable Gain Input Amplifier (PGIA)
(p. 384),
during a single-ended measurement, the high signal (H) is routed to V+. The low
signal (L) is automatically connected internally to signal ground with the low
signal tied to ground (
) at the wiring panel. V+ corresponds to odd or even
numbered SE terminals on the CR3000 wiring panel. The single-ended
configuration is used with the following CRBasic instructions:
•
VoltSE()
•
BrHalf()
•
BrHalf3W()
•
TCSE()
•
Therm107()
•
Therm108()
•
Therm109()
•
Thermistor()
Differential Measurements — Details
Related Topics:
• Differential Measurements — Overview
(p. 71)
• Differential Measurements — Details
(p. 386)
Using the figure Programmable Gain Input Amplifier (PGIA)
(p. 384),
for reference,
during a differential measurement, the high signal (H) is routed to V+ and the low
signal (L) is routed to V–.
An H terminal of an H/L terminal pair differential corresponds to V+. The L
terminal corresponds to V–. The differential configuration is used with the
following CRBasic instructions:
•
VoltDiff()
•
BrFull()
•
BrFull6W()
•
BrHalf4W()
•
TCDiff()
8.1.2.7.3 Voltage Measurement Quality
Read More Consult the following technical papers at
www.campbellsci.com/app-notes for in-depth treatments of several topics