CR1000 - Western Weather Group
COMPONENT
CR1000
Measurement and Control Datalogger
Rugged, Reliable, and Ready
for any Application
More info: 435.227.9000
campbellsci.com/cr1000
CR1000 Measurement and Control Datalogger
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.
Input/Output Terminals—
Individually configured
for ratiometric resistive
bridge, thermocouple,
switch closure, high frequency pulse, low-level ac,
serial sensors, and more.
Removable Power Terminal—simplifies
connection to external power supply.
{
CS I/O Port—connects with
AC-powered PCs and communication peripherals such
as phone, RF, short-haul, and
multidrop modems.
Benefits and Features
4 MB 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 measurements over
time and temperature changes
Single DAC used for excitation and measurements to give ratio
metric measurements
Gas Discharge Tube (GDT) protected inputs
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
PakBus®, Modbus, DNP3, TCP/IP, FTP, and SMTP protocols supported
RS-232—provides
a 9-pin DCE port
for connecting a
battery-powered
laptop, serial
sensors or RS-232
modems.
Peripheral Port—allows data to be
stored on a CompactFlash card and/or
supports Ethernet communications.
Measurement and Control Module
The module measures sensors, drives direct communications and
telecommunications, reduces data, controls external devices, and
stores data and programs in on-board, non-volatile storage. The
electronics are RF shielded and glitch protected by the sealed, stainless steel canister. A battery-backed clock assures accurate timekeeping. The module can simultaneously provide measurement and
communication functions. The on-board, BASIC-like programming
language supports data processing and analysis routines.
Wiring Panel
The CR1000WP is a black, anodized aluminum wiring panel that is
compatible with all CR1000 modules. The 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 supply on pin 8
to power our COM-series phone modems and other peripherals. The
control module easily disconnects from the wiring panel allowing
field replacement without rewiring the sensors. A description of the
wiring panel’s input/output channels follows.
*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 number greater
than or equal to 11832 will have a 4 MB memory. The 4 MB dataloggers will also have a sticker on the canister stating “4M Memory”.
Analog Inputs
Eight differential (16 single-ended) channels measure voltage levels.
Resolution on the most sensitive range is 0.67 µV.
Pulse Counters
Two pulse channels can count pulses from high level (5 V square
wave), switch closure, or low level AC signals.
Switched Voltage Excitations
Three outputs provide precision excitation voltages for resistive
bridge measurements.
Digital I/O Ports
Eight ports are provided for frequency measurements, digital control,
and triggering. Three of these ports can also be used to measure
SDM devices. The I/O ports can be paired as transmit and receive.
Each pair has 0 to 5 V UART hardware that allows serial communications with serial sensors and devices. An RS-232-to-logic level
converter may be required in some cases.
CS I/O Port
AC-powered PCs and many communication peripherals connect
with the CR1000 via this port. Connection to an AC-powered PC
requires either an SC32B or SC-USB interface. These interfaces isolate
the PC’s electrical system from the datalogger, thereby protecting
against ground loops, normal static discharge, and noise.
RS-232 Port
This non-isolated port is for connecting a battery-powered laptop,
serial sensor, or RS-232 modem. Because of ground loop potential
on some measurements (e.g., low level single-ended measurements), AC-powered PCs should use the CS I/O port instead of the
RS-232 port (see above).
Communication Protocols
The CR1000 supports the PakBus, Modbus, DNP3, TCP/IP, FTP, and
SMTP communication protocols. With the PakBus protocol, networks
have the distributed routing intelligence to continually evaluate
links. Continually evaluating links optimizes delivery times and, in
the case of delivery failure, allows automatic switch over to a configured backup route.
The Modbus RTU protocol supports both floating point and long
formats. The datalogger can act as a slave and/or master.
The DNP3 protocol supports only long data formats. The dataloggers are level 2 slave compliant, with some of the operations found
in a level 3 implementation.
The TCP/IP, FTP, and SMTP protocols provide TCP/IP functionality
when the CR1000 is used in conjunction with an NL240, NL201,
NL115, or NL120. Refer to the CR1000 manual for more information.
Power Supplies
Typically, the CR1000 is powered with a PS200, PS100, or BPALK. The
PS200 and PS100 provide a 7 A h sealed rechargeable battery that
should be connected to a charging source (either a wall charger or
solar panel). The BPALK consists of eight non-rechargeable D-cell
alkaline batteries with a 7.5 A h rating at 20°C.
Also available are the BP12 and BP24 battery packs, which provide
nominal ratings of 12 and 24 A h, respectively. These batteries
should be connected to a regulated charging source (e.g., a CH200
or CH100 connected to a unregulated solar panel or wall charger).
Peripheral Port
One 40-pin port interfaces with the NL115 Ethernet Interface and
CompactFlash Module, the NL120 Ethernet Interface, or the CFM100
CompactFlash® Module.
Switched 12 Volt
This terminal provides unregulated 12 V that can be switched on and
off under program control.
Storage Capacity
The CR1000 has 2 MB of flash memory for the Operating System, and
4 MB of battery-backed SRAM for CPU usage, program storage, and
data storage. Data is stored in a table format. The storage capacity
of the CR1000 can be increased by using a CompactFlash card.
Enclosure/Stack Bracket
A CR1000 housed in a weather-resistant enclosure can collect data
under extremely harsh conditions. The 28960 Enclosure Stack
Mounting Kit allows a small peripheral to be placed under the
mounting bracket, thus conserving space.
The PS200 (above) and CH200 are micro-controller-based smart
chargers that have two input terminals that allow simultaneous
connection of two charging sources.
Communication Options
To determine the best option for an application, consider the accessibility of the site, availability of services (e.g., cellular phone or satellite coverage),
quantity of data to collect, and desired time between data-collection sessions. Some communication options can be combined—increasing the flexibility,
convenience, and reliability of the communications.
Keyboard Display
Multidrop Interface
The CR1000KD can be used to program the CR1000, manually initiate
data transfer, and display data. The CR1000KD displays 8 lines by
21 characters (64 by 128 pixels) and has a 16-character keyboard.
Custom menus are supported allowing customers to set up choices
within the datalogger program that can be initiated by a simple
toggle or pick list.
The MD485 intelligent RS-485 interface permits a PC to address and
communicate with one or more dataloggers over the CABLE2TP
two-twisted pair cable. Distances up to 4000 feet are supported.
Internet and IP Networks
Campbell Scientific offers several interfaces that enable the CR1000
to communicate with a PC via TCP/IP.
Radios
One CR1000KD
can be carried
from station
to station in a
CR1000 network.
Mountable Displays
The CD100 and CD295 can be mounted in an enclosure lid. The
CD100 has the same functionality and operation as the CD1000KD,
allowing both data entry and display without opening the enclosure.
The CD295 displays real-time data only.
Radio frequency (RF) communications are supported via narrowband UHF, narrowband VHF, spread spectrum, or meteor burst radios.
Line-of-sight is required for all of our RF options.
Telephone Networks
The CR1000 can communicate with a PC using landlines, cellular
CDMA, or cellular GPRS transceivers. A voice synthesized modem
enables anyone to call the CR1000 via phone and receive a verbal
report of real-time site conditions.
Satellite Transmitters
Our NESDIS-certified GOES satellite transmitter provides one-way
communications from a Data Collection Platform (DCP) to a receiving station. Campbell Scientific also offers an Argos transmitter that
is ideal for high-latitude applications.
iOS Devices, Android Devices, and PDAs
An iOS device, an Android device, our Archer-PCON Field PC, or a
user-supplied PDA can be used to view and collect data, set the
clock, and download programs. To use an iOS or Android device,
go to the Apple Store or Google Play and purchase our LoggerLink
Mobile Apps. User-supplied PDAs require either PConnect or PConnectCE software.
Direct Links
AC-powered PCs connect with the datalogger’s CS I/O port via an
SC32B or SC-USB interface. These interfaces provide optical isolation.
A battery-powered lap-top can be attached to the CR1000’s RS-232
port via an RS-232 cable—no interface required.
External Data Storage Devices
A CFM100 or NL115 module can store the CR1000’s data on an
industrial-grade CompactFlash (CF) card. The CR1000 can also store
data on an SC115 2 GB Flash Memory Drive.
Short Haul Modems
The SRM-5A RAD Short Haul Modem supports communications
between the CR1000 and a PC via a four-wire unconditioned line
(two twisted pairs).
This weather station at Denali National Park, Alaska, transmits data
via a GOES satellite transmitter.
Channel Expansion
4-Channel Low Level AC Module
The LLAC4 is a small peripheral device that allows customers to
increase the number of available low-level ac inputs by using control
ports. This module is often used to measure up to four anemometers, and is especially useful for wind profiling applications.
Synchronous Devices for Measurement (SDMs)
SDMs are addressable peripherals that expand the datalogger’s measurement and control capabilities. For example, SDMs are available
to add control ports, analog outputs, pulse count channels, interval
timers, or even a CANbus interface to the system. Multiple SDMs, in
any combination, can be connected to one datalogger.
Multiplexers
Multiplexers increase the number of sensors that can be measured
by a CR1000 by sequentially connecting each sensor to the datalogger. Several multiplexers can be controlled by a single CR1000.
The Network Planner, included in LoggerNet 4 or higher, generates device
settings and configures the LoggerNet network map for PakBus networks.
PC400, our mid-level software, supports a variety of telemetry options, manual data collection, and data display. For programming, it
includes both Short Cut and the CRBasic program editor. PC400 does
not support combined communication options (e.g., phone-to-RF),
PakBus® routing, and scheduled data collection.
RTDAQ is an ideal solution for industrial and real-time users desiring to
use reliable data collection software over a single telecommunications
medium, and who do not rely on scheduled data collection. RTDAQ’s
strength lies in its ability to handle the display of high speed data.
The CR1000 is compatible with the AM16/32B (shown above) and
AM25T multiplexers.
LoggerNet is Campbell Scientific’s full-featured datalogger support
software. It is referred to as “full-featured” because it provides a way
to accomplish almost all the tasks you’ll need to complete when
using a datalogger. LoggerNet supports combined communication
options (e.g., phone-to-RF) and scheduled data collection.
Software
Starter Software
Our easy-to-use starter software is intended for first time users or applications that don’t require sophisticated communications or datalogger program editing. SCWin Short Cut generates straight-forward
datalogger programs in four easy steps. PC200W allows customers
to transfer a program to, or retrieve data from a CR1000 via a direct
communications link.
At www.campbellsci.com/downloads, the starter software can be
downloaded at no charge. Our Resource DVD also provides this software as well as PDF versions of our brochures and manuals.
Datalogger Support Software
Our datalogger support software packages provide more capabilities
than our starter software. These software packages contains program
editing, communications, and display tools that can support an
entire datalogger network.
Both LoggerNet and RTDAQ use View Pro to display historical data in
a tabular or graphical format.
Applications
The measurement precision, flexibility, long-term reliability, and economical price of the CR1000 make it ideal for scientific, commercial, and industrial applications.
Meteorology
Wind Profiling
The CR1000 is used in long-term climatological monitoring, meteorological research, and routine weather measurement applications.
Our data acquisition systems can monitor conditions at wind assessment sites, at producing wind farms, and along transmission lines. The
CR1000 makes and records measurements, controls electrical devices,
and can function as PLCs or RTUs. Because the datalogger has its own
power supply (batteries, solar panels), it can continue to measure and
store data and perform control during power outages. Typical sensors
for wind assessment applications include, but are not limited to:
cup, propeller, and sonic anemometers (up to 10 anemometers
can be measured by using two LLAC4 peripherals)
wind vanes
thermistors, RTDs, and thermocouples
barometers
pyranometers
For turbine performance applications, the CR1000 monitors electrical
current, voltage, wattage, stress, and torque.
Sensors the CR1000 can measure include:
cup, propeller, and sonic
anemometers
tipping bucket rain gages
wind vanes
pyranometers
ultrasonic ranging sensor
thermistors, RTDs, and
thermocouples
barometers
RH probes
Cooled mirror hygrometers
A Campbell
Scientific system monitors
an offshore
wind farm in
North Wales.
Photo courtesy npower renewables
Our rugged, reliable weather station measures meteorological conditions at St. Mary’s Lake, Glacier National Park, MT.
Agriculture and Agricultural Research
The versatility of the CR1000 allows measurement of agricultural
processes and equipment in applications such as:
plant water research
canopy energy balance
plant pathology
machinery performance
frost prediction
crop management decisions
food processing/storage
integrated pest management
irrigation scheduling
This vitaculture site in Australia integrates meteorological,
soil, and crop measurements.
Soil Moisture
The CR1000 are compatible with the following soil moisture measurement technologies:
Soil moisture blocks are inexpensive sensors that estimate soil
water potential.
Matric water potential sensors also estimate soil water potential
but are more durable than soil moisture blocks.
Time-Domain Reflectometry Systems (TDR) use a reflectometer controlled by the datalogger to accurately measure soil water
content. Multiplexers allow sequential measurement of a large
number of probes by one reflectometer.
Self-contained water content reflectometers are sensors that
emit and measure a TDR pulse.
Tensiometers measure the soil pore pressure of irrigated soils
and calculate soil moisture.
Air Quality
Vehicle Testing
The CR1000 can monitor and control gas analyzers, particle samplers, and visibility sensors. The datalogger can also automatically
control calibration sequences and compute conditional averages
that exclude invalid data (e.g., data recorded during power failures or
calibration intervals).
This versatile, rugged datalogger is ideally suited for testing cold and
hot temperature, high altitude, off-highway, and cross-country performance. The CR1000 is compatible with our SDM-CAN interface
and GPS16X-HVS receiver.
Road Weather/RWIS
Our fully NTCIP-compliant Environmental Sensor Stations (ESS) are
robust, reliable weather stations used for road weather/RWIS applications. A typical ESS includes a tower, CR1000, two road sensors,
remote communication hardware, and sensors that measure wind
speed and direction, air temperature, humidity, barometric pressure,
solar radiation, and precipitation.
Water Resources/Aquaculture
Our CR1000 is well-suited to remote, unattended monitoring of
hydrologic conditions. Most hydrologic sensors, including SDI-12
probes, interface directly to the CR1000.
Typical hydrologic measurements:
Water level is monitored with incremental shaft encoders, double
bubblers, ultrasonic ranging sensors, resistance tapes, strain gage
pressure transducers, or vibrating wire pressure transducers. Vibrating wire transducers require an CDM-VW300-series, AVW200series or another vibrating wire interface.
Well draw-down tests use a pressure transducer measured at
logarithmic intervals or at a rate based on incremental changes
in water level.
Ionic conductivity measurements use one of the switched
excitation ports from the datalogger.
Samplers are controlled by the CR1000 as a function of time,
water quality, or water level.
Alarm and pump actuation are controlled through digital I/O
ports that operate external relay drivers
Vehicle monitoring includes not only passenger cars, but airplanes,
locomotives, helicopters, tractors, buses, heavy trucks, drilling rigs,
race cars, and motorcycles.
The CR1000 can measure:
Suspension—strut pressure, spring force, travel, mounting point
stress, deflection, ride.
Fuel system—line and tank pressure, flow, temperature, injection timing.
Comfort control—ambient and supply air temperature, solar
radiation, fan speed, ac on and off, refrigerant pressures, time-tocomfort, blower current.
Brakes—line pressure, pedal pressure and travel, ABS, line and
pad temperature.
Engine—pressure, temperature, crank position, RPM, time-tostart, oil pump cavitation.
General vehicle—chassis monitoring, road noise, vehicle position
and speed, steering, air bag, hot/cold soaks, wind tunnels, traction,
CANbus, wiper speed and current, vehicle electrical loads.
Other Applications
A turbidity sensor was installed in a tributary of the Cedar River watershed to monitor water quality conditions for Seattle, Washington.
Eddy covariance systems
Wireless sensor/datalogger networks
Fire weather
Geotechnical
Mesonet systems
Avalanche forecasting, snow science, polar, high altitude
Historic preservation
CR1000 Specifications
Electrical specifications are valid over a -25° to +50°C, non-condensing environment, unless otherwise specified. Recalibration recommended every
three years. Critical specifications and system configuration should be confirmed with Campbell Scientific before purchase.
PROGRAM EXECUTION RATE
PERIOD AVERAGE
10 ms to one day @ 10 ms increments
ANALOG INPUTS (SE1-SE16 or DIFF1-DIFF8)
8 differential (DF) or 16 single-ended (SE) individually configuredinput channels. Channel expansion provided by optional
analog multiplexers.
RANGES and RESOLUTION: Basic resolution (Basic Res)
is the A/D resolution of a single A/D conversion. A DIFF measurement with input reversal has better (finer) resolution by
twice than Basic Res.
Range (mV)1
DF Res (µV)2
±5000
±2500
±250
±25
±7.5
±2.5
667
333
33.3
3.33
1.0
0.33
1333
667
66.7
6.7
2.0
0.67
8
The maximum frequency = 1/(twice minimum pulse width)
for 50% of duty cycle signals.
ANALOG MEASUREMENT SPEED:
20.00 ms
Total Time4
3 ms
4
7
With signal centered at the datalogger ground.
Accuracy does not include the sensor and measurement
noise. Offsets are defined as:
Offset for DF w/input reversal = 1.5Basic Res + 1.0 µV
Offset for DF w/o input reversal = 3Basic Res + 2.0 µV
Offset for SE = 3·Basic Res + 3.0 µV
50 Hz
Max (V)
10
2
2
2
Max8
Freq
(kHz)
200
50
8
5
7
3
SE w/
No Rev
~1 ms
~20 ms
~25 ms
Min.
(mV) 6
500
10
5
2
Min
Pulse
Width
(µV)
2.5
10
62
100
Signal centered around Threshold (see PeriodAvg() instruction).
ACCURACY3:
±(0.06% of reading + offset), 0° to 40°C
±(0.12% of reading + offset), -25° to 50°C
±(0.18% of reading + offset), -55° to 85°C (-XT only)
Settling
Time
450 µs
3 ms
Signal (peak to peak)
6
Range overhead of ~9% on all ranges guarantees that
full-scale values will not cause over range.
2
Resolution of DF measurements with input reversal.
5
Input
Voltage Range
Gain (±mV)
1
250
10
25
33
7.5
100
2.5
Basic Res (µV)
1
Integration Type/ IntegraCode
tion Time
250
250 µs
60 Hz5 16.67 ms
Any of the 16 SE analog inputs can be used for period averaging. Accuracy is ±(0.01% of reading + resolution), where
resolution is 136 ns divided by the specified number of cycles
to be measured.
INPUT AMPLITUDE AND FREQUENCY:
DF w/
Input Rev
~12 ms
~40 ms
~50 ms
Includes 250 µs for conversion to engineering units.
AC line noise filter.
5
INPUT NOISE VOLTAGE: For DF measurements with input
reversal on ±2.5 mV input range (digital resolution dominates
for higher ranges).
250 µs Integration: 0.34 µV RMS
50/60 Hz Integration:0.19 µV RMS
INPUT LIMITS: ±5 Vdc
DC COMMON MODE REJECTION: >100 dB
NORMAL MODE REJECTION: 70 dB @ 60 Hz when using
60 Hz rejection
INPUT VOLTAGE RANGE W/O MEASUREMENT
CORRUPTION: ±8.6 Vdc max.
SUSTAINED INPUT VOLTAGE W/O DAMAGE: ±16 Vdc max.
INPUT CURRENT: ±1 nA typical, ±6 nA max. @ 50°C;
±90 nA @ 85°C
INPUT RESISTANCE: 20 GΩ typical
ACCURACY OF BUILT-IN REFERENCE JUNCTION
THERMISTOR (for thermocouple measurements):
±0.3°C, -25° to 50°C
±0.8°C, -55° to 85°C (-XT only)
ANALOG OUTPUTS (VX1-VX3)
3 switched voltage, sequentially active only during measurement.
RATIOMETRIC MEASUREMENTS
MEASUREMENT TYPES: Provides ratiometric resistance
measurements using voltage excitation. 3 switched voltage
excitation outputs are available for measurement of 4- and
6-wire full bridges, and 2-, 3-, and 4-wire half bridges.
Optional excitation polarity reversal minimizes dc errors.
RATIOMETRIC MEASUREMENT ACCURACY:9,10, 11 ±(0.04% of Voltage Measurement + Offset)
9
Accuracy specification assumes excitation reversal for
excitation voltages < 1000 mV. Assumption does not include
bridge resistor errors and sensor and measurement noise.
10Estimated accuracy, ∆X (where X is value returned from the
measurement with Multiplier = 1, Offset = 0):
BrHalf() instruction: ∆X = ∆V1/VX
BrFull() instruction ∆X = 1000∆V1/VX, expressed as mVV−1.
∆V−1 is calculated from the ratiometric measurement
accuracy. See Resistance Measurements Section in the
manual for more information.
11Offsets are defined as:
Offset for DIFF w/input reversal = 1.5Basic Res + 1.0 µV
Offset for DIFF w/o input reversal = 3Basic Res + 2.0 µV
Offset for SE = 3Basic Res + 3.0 µV
Excitation reversal reduces offsets by a factor of two.
PULSE COUNTERS (P1-P2)
2 inputs individually selectable for switch closure, high frequency
pulse, or low-level ac. Independent 24-bit counters for each input.
MAXIMUM COUNTS PER SCAN: 16.7x106
SWITCH CLOSURE MODE:
Minimum Switch Closed Time: 5 ms
Minimum Switch Open Time: 6 ms
Max. Bounce Time: 1 ms open w/o being counted
HIGH-FREQUENCY PULSE MODE:
Maximum Input Frequency: 250 kHz
Maximum Input Voltage: ±20 V
Voltage Thresholds: Count upon transition from below 0.9 V to
above 2.2 V after input filter with 1.2 µs time constant.
LOW-LEVEL AC MODE: Internal ac coupling removes ac
offsets up to ±0.5 Vdc.
Input Hysteresis: 12 mV RMS @ 1 Hz
Maximum ac Input Voltage: ±20 V
Minimum ac Input Voltage:
Sine Wave (mV RMS)
Range(Hz)
20
200
2000
5000
1.0 to 20
0.5 to 200
0.3 to 10,000
0.3 to 20,000
RANGE AND RESOLUTION:
Channel
Range
Resolution
Current
Source/Sink
(VX 1–3)
±2.5 Vdc
0.67 mV
±25 mA
ANALOG OUTPUT ACCURACY (VX):
±(0.06% of setting + 0.8 mV), 0° to 40°C
±(0.12% of setting + 0.8 mV), -25° to 50°C
±(0.18% of setting + 0.8 mV), -55° to 85°C (-XT only)
VX FREQUENCY SWEEP FUNCTION: Switched outputs pro vide a programmable swept frequency, 0 to 2500 mv square
waves for exciting vibrating wire transducers.
DIGITAL I/O PORTS (C1-C8)
8 ports software selectable, as binary inputs or control outputs. Provide Provide on/off, pulse width modulation, edge
timing, subroutine interrupts / wake up, switch‐closure pulse
counting, high‐frequency pulse counting, asynchronous communications (UARTs), and SDI‐12 communications. SDM
communications are also supported.
LOW FREQUENCY MODE MAX: <1 kHz
HIGH-FREQUENCY MODE MAX: 400 kHz
SWITCH-CLOSURE FREQUENCY MAX: 150 Hz
EDGE TIMING RESOLUTION: 540 ns
OUTPUT VOLTAGES (no load): high 5.0 V ±0.1 V; low <0.1
OUTPUT RESISTANCE: 330 Ω
INPUT STATE: high 3.8 to 16 V; low -8.0 to 1.2 V
INPUT HYSTERESIS: 1.4 V
INPUT RESISTANCE: 100 Ω with inputs <6.2 Vdc
220 Ω with inputs ≥6.2 Vdc
SERIAL DEVICE/RS-232 SUPPORT: 0 TO 5 Vdc UART
SWITCHED 12 VDC (SW-12)
1 independent 12 Vdc unregulated source is switched on and
off under program control. Thermal fuse hold current = 900 mA
at 20°C, 650 mA at 50°C, 360 mA at 85°C.
CE COMPLIANCE
STANDARD(S) TO WHICH CONFORMITY IS DECLARED:
IEC61326:2002
COMMUNICATIONS
RS-232 PORTS:
DCE 9-pin: (not electrically isolated) for computer con nection or connection of modems not manufactured
by Campbell Scientific.
COM1 to COM4: 4 independent Tx/Rx pairs on control
ports (non-isolated); 0 to 5 Vdc UART
Baud Rates: selectable from 300 bps to 115.2 kbps.
Default Format: 8 data bits; 1 stop bits; no parity
Optional Formats: 7 data bits; 2 stop bits; odd, even parity
CS I/O PORT: Interface with telecommunications peripherals
manufactured by Campbell Scientific.
SDI-12: Digital control ports C1, C3, C5, and C7 are individually
configured and meet SDI-12 Standard v 1.3 for datalogger
mode. Up to 10 SDI-12 sensors are supported per port.
PERIPHERAL PORT: 40-pin interface for attaching
CompactFlash or Ethernet peripherals
PROTOCOLS SUPPORTED: PakBus, AES-128 Encrypted
PakBus, Modbus, DNP3, FTP, HTTP, XML, HTML, POP3,
SMTP, Telnet, NTCIP, NTP, Web API, SDI-12, SDM.
SYSTEM
PROCESSOR: Renesas H8S 2322 (16-bit CPU with 32-bit
internal core running at 7.3 MHz)
MEMORY: 2 MB of flash for operating system; 4 MB of
battery-backed SRAM for CPU usage, program storage
and final data storage.
REAL-TIME CLOCK ACCURACY: ±3 min. per year.
Correction via GPS optional.
REAL-TIME CLOCK RESOLUTION: 10 ms
SYSTEM POWER REQUIREMENTS
VOLTAGE: 9.6 to 16 Vdc
INTERNAL BATTERIES: 1200 mAh lithium battery for clock and
SRAM backup that typically provides three years of backup
EXTERNAL BATTERIES: Optional 12 Vdc nominal alkaline
and rechargeable available. Power connection is reverse
polarity protected.
TYPICAL CURRENT DRAIN at 12 Vdc:
Sleep Mode: 0.7 mA typical; 0.9 mA maximum
1 Hz Sample Rate (1 fast SE meas.): 1 mA
100 Hz Sample Rate (1 fast SE meas.): 16.2 mA
100 Hz Sample Rate (1 fast SE meas. w/RS-232
communication): 28 mA
Active external keyboard display adds 7 mA (100 mA
with backlight on).
PHYSICAL
DIMENSIONS: 23.9 x 10.2 x 6.1 cm (9.4 x 4 x 2.4 in);
additional clearance required for cables and leads.
MASS/WEIGHT: 1 kg / 2.1 lb
WARRANTY
3 years against defects in materials and workmanship.
Campbell Scientific, Inc. | 815 W 1800 N | Logan, UT 84321-1784 | (435) 227-9000 | www.campbellsci.com
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© 2004, 2014
Campbell Scientific, Inc.
January 23, 2014
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