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Original factory packaging
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Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Updated:2023-11-29
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Product ManualDatasheet
The CR350 is a multi-purpose, extremely low power, compact measurement and control data logger. This entry-level data logger, with its rich instruction set, can measure most hydrological, meteorological, environmental, and industrial sensors. The CR350 concentrates data, makes it available over varied networks, and delivers it using your preferred protocol. The CR350 also performs automated on-site or remote decision-making for control and M2M communications. This data logger is ideal for small applications requiring long-term, remote monitoring and control.
The following outlines the primary differences between the CR300, CR310, and CR350 dataloggers:
The CR310 and CR350 offer removable connectors.
The CR310 includes a 10/100 Ethernet connection.
The CR350 has two independent RS-232/RS-485 ports and USB-C.
The CR350 includes Wi-Fi, cellular, or the following radio options for different regions:
CR350-RF407: US and Canada
CR350-RF412: Australia and New Zealand
CR350-RF422: Europe
CR350-RF427: Brazil
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
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.
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)
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)
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
| 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;) |
| 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;) |
| 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;) |
| 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;) |
| 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;) |
| 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; ) |
| 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; ) |
| 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;) |
| 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) |
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