Campbell CR200, Руководство оператора

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CR200 Overview
OV1.1.2 Signal/Shield Grounds
The terminals labeled are used to connect the ground reference for
hield wires.
OV1.1.3 Power Gr
The G terminals (Power Grounds) are used to carry return currents from other
red by the SW Battery or battery and terminals.
OV1.1.4 Ground L
The earth ground lug is used to connect a heavy gage wire to earth ground. A
earth connection is necessary to fix the ground potential of the datalogger
o send to earth transients that come in on the terminals or are shunted to
OV1.1.5 Switched
Two switched excitation channels provide precision programmable voltages
ents. Each analog output will provide up
OV1.1.6 Pulse Inp
Two Pulse input channels can count pulses from high-level (5 V square wave),
h closure, or low-level A/C signals.
OV1.1.7 Control I/
There are two digital Input/Output channels (0 V low, 5 V high) for frequency
asurement, digital control, SDI-12 communication.
OV1.1.8 Power In
The Batt - and Batt + terminals are for connecting power from an external
battery to the CR200. The CR200 will operate on 7 to 16 VDC. These are the
only terminals that can be used to input battery power; the SW Battery terminal
ust
OV1.1.9 Switched
The SW Battery terminal provides an unregulated power from the battery that
hed on and off under program control.
OV1.1.10 Power S
The CR200 does not have an internal power supply but does have connections
t-in charging regulator for charging a 12 V
l power source. Charging power can come
measurements and s
ound (G)
devices powe
ug
good
and t
ground via the spark gaps protecting other inputs.
Voltage Excitation (VX)
(+2.5 V + 5 V) for bridge measurem
to 20 mA at 2.5 V, 10 mA at 5 V.
uts
switc
O
me
is an output only. Power to charge a 12 V lead-acid battery (16-22 VDC) m
be connected to the and Charge – terminals.
Battery
can be switc
upply and AC Adapter
for an external battery and a buil
lead-acid battery from an externa
from a 16-22 VDC input such as a solar panel.
OV-3