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The CR1000 provides precision measurement capabilities in a rugged, battery-operated package. It consists of a measurement and
control module and a wiring panel. Standard operating range is -25° to +50°C; an optional extended range of -55° to +85°C is available.
*Originally, the standard CR1000 had 2 MB of data/program storage, and an optional version, the CR1000-4M, had 4 MB of memory. In September
2007, the standard CR1000 started having 4 MB of memory, making the CR1000-4M obsolete. Dataloggers that have a module with a serial num-
ber greater than or equal to 11832 will have a 4 MB memory. e 4 MB dataloggers will also have a sticker on the canister stating “4M Memory”.
CR1000
Measurement and Control System
Input/Output Terminals—
Individually configured
for ratiometric resistive
bridge, thermocouple,
switch closure, high fre-
quency pulse, low-level ac,
serial sensors, and more.
CS I/O Port—connects with
AC-powered PCs and com-
munication peripherals such
as phone, RF, short-haul, and
multidrop modems.
RS-232—provides
a 9-pin DCE port
for connecting a
battery-powered
laptop, serial
sensors or RS-232
modems.
Removable Power Terminal—simpli es
connection to external power supply.
Peripheral Port—allows data to be
stored on a CompactFlash card and/or
supports Ethernet communications.
{
Features
4 Mbyte memory*•
Program execution rate of up to 100 Hz •
CS I/O and RS-232 serial ports•
13-bit analog to digital conversions•
16-bit H8S Renesas Microcontroller with 32-bit •
internal CPU architecture
Temperature compensated real-time clock •
Background system calibration for accurate mea-•
surements over time and temperature changes
Single DAC used for excitation and measurements •
to give ratio metric measurements
Gas Discharge Tube (GDT) protected inputs•
Data values stored in tables with a time stamp and •
record number
Battery-backed SRAM memory and clock ensuring •
data, programs, and accurate time are maintained
while the CR1000 is disconnected from its main
power source
Serial communications with serial sensors and •
devices supported via I/O port pairs
P• B, Modbus, DNP3, TCP/IP, FTP, and SMTP
protocols supported
Measurement and Control Module
e module measures sensors, drives direct communi-
cations and telecommunications, reduces data, con-
trols external devices, and stores data and programs in
on-board, non-volatile storage. e electronics are RF
shielded and glitch protected by the sealed, stainless
steel canister. A battery-backed clock assures accurate
timekeeping. e module can simultaneously provide
measurement and communication functions. e
on-board, BASIC-like programming language sup-
ports data processing and analysis routines.
Wiring Panel
e CR1000WP is a black, anodized aluminum wiring
panel that is compatible with all CR1000 modules. e
wiring panel includes switchable 12 V, redistributed
analog grounds (dispersed among analog channels
rather than grouped), unpluggable terminal block for
12 V connections, gas-tube spark gaps, and 12 V sup-
ply on pin 8 to power our COM-series phone modems
and other peripherals. e control module easily dis-
connects from the wiring panel allowing eld replace-
ment without rewiring the sensors. A description of
the wiring panel’s input/output channels follows.
(72 Seiten)
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