Benefits and Features
- Two dedicated SDI-12 terminals to expand SDI-12 sensor use
- Extremely low current requirements
- Two dedicated RS-232/RS-485 terminals to support smart sensors or modems
- Easy setup with PC software and USB-C connectivity
- Ability to measure analog and digital sensors with confidence
- Trusted Campbell Scientific quality, including integral surge and ESD protection
- Integrated radio option to network wirelessly to another node or Internet gateway
- CR350-WIFI ideal for short-range, wireless IP communication
- Removable terminal block for easy wiring
- Ability to communicate anywhere using built-in cellular or satellite peripherals
- Integrated 12 V battery solar charge regulator to charge batteries
- Flexibility to connect with PakBus, Modbus, DNP3, GOES, and other standard communication protocols
- Multiple general-purpose I/O and programmability to analyze and control measurement acquisition
- Event-driven communications and physical outputs for notifications
Detailed Description
The CR350 is a low-powered data logger designed to measure sensors, analyze data, and store data and programs. A battery-backed clock assures accurate timekeeping. The on-board, BASIC-like programming language—common to all Campbell Scientific data loggers—supports data processing and analysis routines.
Terminal Descriptions
- Two switched 12 V terminals (SW12V) for powering sensors or communication devices, 2100 mA
- Two sensor excitation or continuous 0.15 to 5 V terminals (VX1, VX2) for sensor excitation or output control
- Four multipurpose analog input terminals (SE1–SE4)
- Analog functions (SE1–SE4)
- Analog inputs: 4 single-ended or 2 differential inputs with -100 to +2500 mV and ±34 mV ranges 24 bit ADC
- 4 to 20 mA or 0 to 20 mA inputs (SE1, SE2 only)
- Digital I/O functions (SE1–SE4) consist of 3.3 V logic levels for:
- High frequency counter (35 kHz)
- Pulse width modulation
- Interrupts and timer input
- Period average (200 kHz, amplitude dependent)
- Analog functions (SE1–SE4)
- Two Pulse Counting Terminals (P_SW, P_LL)
- P_SW
- Switch closure (150 Hz)
- High frequency counter (35 kHz)
- P_LL
- Low level ac (20 kHz)
- High frequency counter (20 kHz)
- P_SW
- Two Control Terminals (C1, C2): C terminals are software configurable for digital functions
- Digital I/O functions consist of 5 V output and 3.3 V input logic levels for:
- SDI-12
- High frequency counter (3 kHz)
- Switch closure (150 Hz)
- General status/control voltage source 5 V; 10 mA @ 3.5 V
- Interrupts
- Serial asynchronous communication Tx/Rx pair
- Digital I/O functions consist of 5 V output and 3.3 V input logic levels for:
Specifications
Operating Temperature Range |
|
Maximum Scan Rate | 10 Hz |
Case Material | High-impact-resistant polycarbonate, recycle code 7 |
Analog Inputs | 4 single-ended or 2 differential (individually configured) |
Pulse Counters | 8 (P_SW, P_LL, C1, C2, and SE1 to SE4) |
Voltage Excitation Terminals | 2 (VX1, VX2) |
Communications Ports |
|
Switched 12 Volt | 2 terminals |
Digital I/O | 7 terminals (C1, C2, P_SW, and SE1 to SE4) configurable for digital input and output. Includes status high/low, pulse width modulation, external interrupt, and communication functions. Exception: C2 and P_SW don’t do pulse-width modulation. |
Analog Input Limits | -100 to +2500 mV |
Analog Voltage Accuracy |
|
ADC | 24-bit |
Power Requirements | 16 to 32 Vdc for charger input (CHG) (Current limited to 1.1 A maximum for power converter or solar panel input.) |
Real-Time Clock Accuracy | ±3 min. per year |
Internet Protocols | Ethernet, PPP, RNDIS, ICMP/Ping, Auto-IP(APIPA), IPv4, IPv6, UDP, TCP, TLS (v1.2), DNS, DHCP, SLAAC, NTP, Telnet, HTTP(S), FTP(S), SMTP/TLS, POP3/TLS, MQTT(S) |
Communication Protocols | PakBus, PakBus Encryption, Modbus RTU/ASCII/TCP, DNP3, SDI-12, and others |
CPU Drive/Programs | 50 MB serial flash |
Data Storage | 50 MB serial flash |
Idle Current Drain, Average | 0.5 mA (@ 12 Vdc) |
Active Current Drain, Average |
|
Dimensions | 16.3 x 8.4 x 5.6 cm (6.4 x 3.3 x 2.2 in.) Additional clearance required for cables and leads. |
Weight | 288 to 306 g (0.64 to 0.68 lb) depending on communication option selected |
CR350-RF407 Option | |
Radio Type | Frequency Hopping Spread Spectrum (FHSS) |
Output Power | 5 to 250 mW (user-selectable) |
Frequency | 902 to 928 MHz (US, Canada) |
RF Data Rate | 200 kbps |
Receive Sensitivity | -101 dBm |
Antenna Connector | RPSMA (External antenna required; see www.campbellsci.com/order/rf407 for Campbell Scientific antennas.) |
Idle Current Drain, Average | 12 mA (@ 12 Vdc) |
Active Current Drain, Average | < 80 mA (@ 12 Vdc) |
CR350-RF412 Option | |
Radio Type | Frequency Hopping Spread Spectrum (FHSS) |
Output Power | 5 to 250 mW (user-selectable) |
Frequency | 915 to 928 MHz (Australia, New Zealand) |
RF Data Rate | 200 kbps |
Receive Sensitivity | -101 dBm |
Antenna Connector | RPSMA (External antenna required; see www.campbellsci.com/order/rf412 for Campbell Scientific antennas.) |
Idle Current Drain, Average | 12 mA (@ 12 Vdc) |
Active Current Drain, Average | < 80 mA (@ 12 Vdc) |
CR350-RF422 Option | |
Radio Type | 868 MHz SRD 860 with Listen Before Talk (LBT) and Automatic Frequency Agility (AFA) |
Output Power | 2 to 25 mW (user-selectable) |
Frequency | 863 to 870 MHz (European Union) |
RF Data Rate | 10 kbps |
Receive Sensitivity | -106 dBm |
Antenna Connector | RPSMA (External antenna required; see www.campbellsci.com/order/rf422 for Campbell Scientific antennas.) |
Idle Current Drain, Average | 9.5 mA |
Active Current Drain, Average | 20 mA |
CR350-RF427 Option | |
Radio Type | Frequency Hopping Spread Spectrum (FHSS) |
Output Power | 5 to 250 mW (user-selectable) |
Frequency | 902 to 907.5 MHz/915 to 928 MHz (Brazil) |
RF Data Rate | 200 kbps |
Receive Sensitivity | –101 dBm |
Antenna Connector | RPSMA (External antenna required.) |
Idle Current Drain, Average | 12 mA (@ 12 Vdc) |
Active Current Drain, Average | < 80 mA (@ 12 Vdc) |
CR350-WIFI Option | |
Operational Modes | Client or Access Point |
Operating Frequency | 2.4 GHz, 20 MHz bandwidth |
Antenna Connector | Reverse Polarity SMA (RPSMA) |
Antenna | pn 16005 unity gain (0 dBd), 1/2 wave whip, omnidirectional with articulating knuckle joint for vertical or horizontal orientation |
Transmit Power | 7 to 18 dBm (5 to 63 mW) |
CR350-CELL205 Option | |
-NOTE- | The CR350-CELL205 option is not compatible with a Verizon cellular network. |
Certifications | IC (Industry Canada) 10224A-201611EC21A |
Cell Technologies |
|
3G Frequency Bands | 850, 1700/2100 (AWS), and 1900 |
4G Frequency Bands | 700, 850, 1700/2100 (AWS-1), 1900 |
Antenna Connector | SMA (External antenna required; see www.campbellsci.com/order/cr350 for Campbell Scientific antennas.) |
SIM Interface | 3FF (6 position/contacts) Supports SIMs that require 1.8 or 3 V. |
Radio Output Power |
|
Radio Sensitivity Range | -99.5 to 110.5 dBm (10 M) |
CR350-CELL210 Option | |
-NOTE- | The CR350-CELL210 option is only compatible with a Verizon cellular network. |
Cell Technologies | 4G (LTE CAT-1) |
4G Frequency Bands | 700, 850, 1700, 1900, 2100 |
Antenna Connector | SMA (External antenna required; see www.campbellsci.com/order/cr350 for Campbell Scientific antennas.) |
Power Consumption – Low Power Mode | 5 mA |
Power Consumption – Idle | 35 mA |
Power Consumption – Active | 70 mA |
SIM Interface | 3FF (6 position/contacts) Supports SIMs that require 1.8 or 3 V. |
Radio Output Power | 23 dBm on LTE |
Radio Sensitivity Range | -99.5 to 110.5 dBm (10 M) |
CR350-CELL215 Option | |
-NOTE- | The CR350-CELL215 option is intended for use in EMEA countries. |
Cell Technologies |
|
2G Frequency Bands | 900 and 1800 MHz |
3G Frequency Bands | 850, 900, and 2100 MHz |
4G Frequency Bands | 800, 850, 900, 1800, 2100, and 2600 MHz |
Antenna Connector | SMA (External antenna required; see www.campbellsci.com/order/cr350 for Campbell Scientific antennas.) |
SIM Interface | 3FF (6 position/contacts) Supports SIMs that require 1.8 or 3 V. |
Radio Output Power |
|
Radio Sensitivity Range | -99.5 to 110.5 dBm (10 M) |
CR350-CELL220 Option | |
-NOTE- | The CR350-CELL220 option is intended for use in Australia and New Zealand. |
Cell Technologies |
|
3G Frequency Bands |
|
4G Frequency Bands |
|
Antenna Connector | SMA (External antenna required; see www.campbellsci.com/order/cr350 for Campbell Scientific antennas.) |
SIM Interface | 3FF (6 position/contacts) Supports SIMs that require 1.8 or 3 V. |
Radio Output Power |
|
Radio Sensitivity Range | -99.5 to 110.5 dBm (10 M) |
CR350-CELL225 Option | |
-NOTE- | The CR350-CELL225 option is intended for use in Japan. |
Cell Technologies | 4G (LTE CAT-1) |
4G Frequency Bands | 800 (lower), 800 (upper), 850+, 900, 1800, and 2100 MHz |
Antenna Connector | SMA (External antenna required; see www.campbellsci.com/order/cr350 for Campbell Scientific antennas.) |
SIM Interface | 3FF (6 position/contacts) Supports SIMs that require 1.8 or 3 V. |
Radio Output Power | 23 dBm on LTE |
Radio Sensitivity Range | -99.5 to 110.5 dBm (10 M) |