LEDs: Indicate
datalogger is scan-
ning, transmitting,
or receiving.
RS-232 Port: Supports
communications with a
computer. The CR295X has a
second serial port dedicated
for satellite communications.
{
Input/Output Connections:
Measure, communicate with,
and power sensors.
Benets and Features
Campbell Scientic’s smallest, lowest cost datalogger
Optimal for measuring one or two simple sensors
512 kB of ash nal storage memory; ~128,000 data points
Fastest scan rate of once per second
12-bit analog to digital conversions
Gas Discharge Tube (GDT) protected inputs
Data values stored in tables with a time stamp and record number
Battery-backed SRAM and clock that ensure data, programs, and
accurate time are maintained while a CR200X-series datalogger is
disconnected from the main power source
PakBus® communication protocol used, which is a simplied varia-
tion of Internet protocols
Input/Output Channels
Gas discharge tubes provide rugged electrostatic discharge protec-
tion for the inputs. The CR200X-series loggers have ve single-ended
analog inputs, one switch closure pulse input, one low level ac pulse
input, two control ports, two excitation channels (2.5 or 5 V), and one
switched battery output. One of the control ports can be used as an
SDI-12 port. Input voltage range is 0 to +2500 mV with 0.6 mV reso-
lution. Please note that dierential measurements are not supported.
Program/Data Storage
Programs and data are stored in a non-volatile Flash memory. Final
storage has 512 kB of memory that provides approximately 128,000
data points in the table-based memory structure.
CR200X-Series
1
Dataloggers/Wireless Sensors
1
e CR200X-series dataloggers replaced the CR200-series dataloggers in December 2009. e CR200X-series datalogger allows 128 public variables
instead of 48 and allows eight tables instead of four. e compiled CRBasic program of a CR200X-series datalogger can be two times larger than the com-
piled CRBasic program of a CR200-series datalogger. For the CR200X series, all supported CRBasic instructions are in a single operating system version.
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