CR510 Basic Datalogger - FP-ENAS

CR510 Basic Datalogger - FP-ENAS
CR510 Basic Datalogger
Research-grade performance in a small package
System Description
Storage Capacity
The CR510 provides precision channels that allow you to
accurately measure a variety of sensors:
Data and programs are stored either in non-volatile Flash
memory or battery-backed SRAM. The CR510 has two
Final Storage areas that store up to 62,000 data points.
Optional versions store up to 2 million data points.
• Two differential (four single-ended) analog channels
Operation in Harsh Environments
• Two pulse counting channels (an additional channel
[C2/P3] can also be configured to count switch
closures)
The standard operating temperature range is -25° to
+50°C; an extended range of -55° to +85°C is available.
A CR510 housed in an enclosure with desiccant is protected from humidity and most contaminants.
Input/Output Connections
• Two switched excitation channels
WARNING:
PS12 POWER SUPPLY
PERMANENT DAMAGE TO RECHARGEABLE
CELLS MAY RESULT IF DISCHARGED
BELOW 10.5 VOLTS
WITH 12V CHARGING REGULATOR
FUNCTION
BAT
INT
EXT
CHG
PS12 BATTERY
EXTERNAL BATTERY - DO NOT USE WITH
INTERNAL RECHARGEABLE BATTERY
CHARGE VOLTAGE PRESENT
ON
OFF
• Two digital I/O ports (both ports support SDI-12
sensors; control port C1 also supports output control
of external devices)
CHG
CHG
INPUT FROM CHARGER OR SOLAR PANEL
16-26 VDC OR AC RMS: POSITIVE TO
EITHER TERMINAL, NEGATIVE TO OTHER
+12
+12
MADE IN USA
POWER TO DATALOGGER OR
12V PERIPHERALS
CR510
SE
1
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2
3
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12V G
G 12V
• 5 and 12 V power terminals
• 9-pin CS I/O port
12-Volt Powered
Any 12 VDC source can power the CR510; it typically
uses our BPALK or PS12LA power supply. The BPALK
consists of eight D-cell batteries and the PS12LA includes
a sealed rechargeable battery that can be float-charged
with a solar panel or AC power.
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Our weather-resistant enclosures (model 6447 10” x 12” shown),
rechargeable power supplies, and the CR510’s minimal power requirements allow extended field use.
Cover photos: At left: CR510. At right: A shaft encoder measures water level; the data is transmitted to a base
station via radio telemetry.
Telecommunications
Ease of Use
Telecommunication options
include multidrop (coaxial cable)
and short-haul modems, radios
(UHF, VHF, spread spectrum),
telephones (including cellular and
voice-synthesized), and satellite
transmitters.
Free software, shipped with the CR510 and also available
from our Web site, allows you to choose compatible sensors, select scan and data output intervals, and output a
wiring diagram to connect your sensors.
On-site Communications
Up to 254 sites can be
Data and program transfer and
interrogated over a UHF
storage capabilities are provided
or VHF frequency.
by our storage modules.
Direct communication to the
serial port of a computer, printer, or display is supported
via RS-232 interfaces. For simple on-site data review and
program changes, the CR10KD is recommended.
Battery-Backed SRAM and Clock
When the CR510 is disconnected from its 12 V power
source, a user-replaceable internal battery retains programming and data, and powers the clock.
Support Software
Our computer software simplifies the exchange of data,
programs, and commands between the CR510 and a PC.
Software that is compatible with the CR510 includes
Short Cut Program Builder, PC200W Starter Software,
PC208W Datalogger Support Software, and Real-Time
Data Monitor (RTDM). For more information, see our
software literature.
Transient Protected
Encased in metal with gas discharge tubes on the panel,
the CR510 has EMI filtering and ESD protection on all
input and output connections.
Small Package
Built with surface-mount technology, the CR510 is a
small (8.4” x 1.5” x 3.9”), lightweight (15 oz.) datalogger.
Sensors and Applications
The measurement precision, long-term reliability, and
economical price of the CR510 make it ideal for a variety
of applications that require a small number of sensors.
Compatible sensors include:
• SDI-12 sensors
• Tipping bucket and
weighing rain gages
• Pressure transducers
• Wind vanes
• Shaft encoders
• Anemometers
• Ultrasonic level sensors
• Flow meters
• Relative humidity
sensors
• Conductivity sensors
• Pyranometers
• pH sensors
• Leaf wetness sensors
• Thermistors
• Fuel moisture/temperature sensors
The CR510 supports many water resources, agricultural,
and meteorological applications including:
• Water level/stage
• SCADA/Modbus
• Well draw-down test
• Flood warning/ALERT
• Water quality
• Disease forecasting
• Alarm and pump
actuation
• Wind studies
The CR510 supports many applications including the monitoring of
fire conditions.
Note: The CR510 does not support multiplexers, SDM
devices, or thermocouples. If you need additional channels for future use, consider a CR10X.
CR510 Specifications
Electrical specifications are valid over a -25° to +50°C range unless otherwise specified; non-condensing environment
required. To maintain electrical specifications, yearly calibrations are recommended.
PROGRAM EXECUTION RATE
System tasks initiated in sync with real-time up
to 64 Hz. One measurement with data transfer is
possible at this rate without interruption.
ANALOG INPUTS
NUMBER OF CHANNELS: 2 differential or 4
single-ended, individually configured.
RANGE AND RESOLUTION:
Full Scale
Input Range (mV)
±2500
±250
±25
±7.5
±2.5
Resolution (µV)
Differential Single-Ended
333
666
33.3
66.6
3.33
6.66
1.00
2.00
0.33
0.66
INPUT SAMPLE RATES: Includes the measurement
time and conversion to engineering units. The
fast and slow measurements integrate the signal
for 0.25 and 2.72 ms, respectively. Differential
measurements incorporate two integrations with
reversed input polarities to reduce thermal offset
and common mode errors.
Fast differential voltage:
4.2 ms
Slow differential voltage:
9.2 ms
Differential with 60 Hz rejection: 25.9 ms
ACCURACY: ±0.1% of FSR (-25° to 50°C);
±0.05% of FSR (0° to 40°C);
e.g., ±0.1% FSR = ±5.0 mV for ±2500
mV range
INPUT NOISE VOLTAGE (for ±2.5 mV range):
Fast differential: 0.82 µV rms
Slow differential: 0.25 µV rms
Differential with
60 Hz rejection: 0.18 µV rms
COMMON MODE RANGE: ±2.5 V
DC COMMON MODE REJECTION: > 140 dB
NORMAL MODE REJECTION: 70 dB (60 Hz with
slow differential measurement)
INPUT CURRENT: ±9 nA maximum
INPUT RESISTANCE: 20 Gohms typical
ANALOG OUTPUTS
DESCRIPTION: 2 switched excitations, active only
during measurement, one at a time.
RANGE: ±2.5 V
RESOLUTION: 0.67 mV
ACCURACY: ±2.5 mV (0° to 40°C);
±5 mV (-25° to 50°C)
CURRENT SOURCING: 25 mA
CURRENT SINKING: 25 mA
determined by measuring the duration of a specified number of cycles. Any of the 4 single-ended
analog input channels can be used. Signal attentuation and ac coupling is typically required.
INPUT FREQUENCY RANGE: Signal centered
around ground.
Range
Min. volts (peak-peak)
Max. Input
Code
@ Max. Freq.
Frequency
1
2 mV
8 kHz
2
5 mV
20 kHz
3
12 mV
40 kHz
4
2000 mV
200 kHz
RESOLUTION: 35 ns divided by the number of
cycles measured
ACCURACY: ±0.03% of reading
TIME REQUIRED FOR MEASUREMENT: Signal
period times the number of cycles measured plus
1.5 cycles + 2 ms.
PULSE COUNTERS
NUMBER OF PULSE COUNTER CHANNELS: 2
eight-bit or 1 sixteen-bit; software selectable as
switch closure, high frequency pulse, or low-level
AC. An additional channel (C2/P3) can be
software configured to read switch closures at
rates up to 40 Hz.
MAXIMUM COUNT RATE: 16 kHz, eight-bit counter;
400 kHz, sixteen-bit counter. Channels are
scanned at 8 or 64 Hz (software selectable).
MODES: Switch closure, high frequency pulse, and
low level ac.
SWITCH CLOSURE MODE
Minimum Switch Closed Time: 5 ms
Minimum Switch Open Time: 6 ms
Maximum Bounce Time: 1 ms open
without being counted
HIGH FREQUENCY PULSE MODE
Minimum Pulse Width: 1.2 µs
Maximum Input Frequency: 400 kHz
Voltage Thresholds: Count upon transition
from below 1.5 V to above 3.5 V at low frequencies. Larger input transitions are required at high
frequencies because of input filter with 1.2 µs time
constant. Signals up to 400 kHz will be counted if
centered around +2.5 V with deviations ≥ ± 2.5 V
for ≥ 1.2 µs.
Maximum Input Voltage: ±20 V
LOW LEVEL AC MODE
(Typical of magnetic pulse flow transducers or
other low voltage, sine wave outputs.)
Input Hysteresis: 14 mV
Maximum AC Input Voltage:
Minimum AC Input Voltage:
(Sine wave mV rms)*
20
200
1000
±20 V
Range (Hz)
1 to 1000
0.5 to 10,000
0.3 to 16,000
FREQUENCY SWEEP FUNCTION: The switched
outputs provide a programmable swept frequency,
0 to 2.5 V square wave for exciting vibrating wire
transducers.
*16-bit config. or 64 Hz scan req’d for freq. > 2048 Hz
RESISTANCE MEASUREMENTS
DIGITAL I/O PORTS
MEASUREMENT TYPES: The CR510 provides
ratiometric bridge measurements of 4- and 6-wire
full bridge, and 2-, 3-, and 4-wire half bridges.
Precise dual polarity excitation using any of the
switched outputs eliminates dc errors.
Conductivity measurements use a dual polarity
0.75 ms excitation to minimize polarization errors.
DESCRIPTION: Port C1 is software selectable as a
binary input, control output, or as an SDI-12 port.
Port C2/P3 is input only and can be software configured as an SDI-12 port, a binary input, or as a
switch closure counter (40 Hz max).
ACCURACY: ±0.02% of FSR plus bridge errors.
OUTPUT RESISTANCE: 500 ohms
PERIOD AVERAGING MEASUREMENTS
INPUT STATE: high 3.0 to 5.5 V; low -0.5 to 0.8 V
DEFINITION: The average period for a single cycle is
INPUT RESISTANCE: 100 kohms
OUTPUT VOLTAGES (no load): high 5.0 V ±0.1 V;
low < 0.1 V
SDI-12 INTERFACE STANDARD
DESCRIPTION: Digital I/O Ports C1-C2 support
SDI-12 asynchronous communication; up to ten
SDI-12 sensors can be connected to each port.
Meets SDI-12 standard Version 1.2 for datalogger
and sensor modes.
EMI and ESD PROTECTION
EMISSIONS: Meets or exceeds following standards:
Radiated: per EN 55022:1987 Class B
Conducted: per EN 55022:1987 Class B
IMMUNITY: Meets or exceeds following standards:
ESD: per IEC 801-2; 1984 8 kV air discharge
RF: per IEC 801-3; 1984 3 V m-1, 27-500 MHz
EFT: per IEC 801-4; 1988 1 kV mains, 500 V
other
CE COMPLIANCE (as of 01/98)
APPLICATION OF COUNCIL DIRECTIVE(S):
89/336/EEC as amended by 89/336/EEC and
93/68/EEC
STANDARD(S) TO WHICH CONFORMITY IS
DECLARED:
ENC55022-1: 1995 and ENC50082-1: 1992
CPU AND INTERFACE
PROCESSOR: Hitachi 6303.
PROGRAM STORAGE: Up to 16 kbytes for active
program; additional 16 kbytes for alternate
programs. Operating system stored in 128 kbytes
Flash memory.
DATA STORAGE: 128 kbytes SRAM standard
(approximately 60,000 values). Additional 1 or 2
Mbytes Flash available as an option.
OPTIONAL KEYBOARD DISPLAY: 8 digit LCD (0.5"
digits).
PERIPHERAL INTERFACE: 9 pin D-type connector
for keyboard display, storage module, modem,
printer, card storage module, and RS-232
adapter.
BAUD RATES: Selectable at 300, 1200, and 9600,
76,800 for certain synchronous devices. ASCII
communication protocol is one start bit, one stop
bit, eight data bits (no parity).
CLOCK ACCURACY: ±1 minute per month
SYSTEM POWER REQUIREMENTS
VOLTAGE: 9.6 to 16 Vdc
TYPICAL CURRENT DRAIN: 1 mA quiescent,
13 mA during processing, and 46 mA during
analog measurement.
BATTERIES: Any 12 V battery can be connected as
a primary power source. Several power supply
options are available from Campbell Scientific.
The model CR2430 lithium battery for clock and
SRAM backup has a capacity of 270 mAhr.
PHYSICAL SPECIFICATIONS
SIZE: 8.4" x 1.5" x 3.9" (21.3 cm x 3.8 cm x 9.9 cm).
Additional clearance required for serial cable and
sensor leads.
WEIGHT: 15 oz. (425 g)
WARRANTY
Three years against defects in materials and
workmanship.
We recommend that you confirm system
configuration and critical specifications with
Campbell Scientific before purchase.
Copyright © 1999, 2000
Campbell Scientific, Inc.
Printed May 2000
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