Introduction to Sensor
Measurement and Control Datalogger (CR850)
Smaller, Simpler DataLogger
The CR850 is a compact, research-grade data logger featuring an integrated keyboard and display for convenient on-site configuration and monitoring. Designed for smaller measurement systems, it is ideal for applications requiring fewer sensors without compromising performance. Built with a rugged design, the CR850 delivers reliable stand-alone operation, making it well-suited for harsh and remote environments where durability and dependable data logging are essential.
Features
Specifications
| Operating Temperature Range |
|
| Maximum Scan Rate | 100 Hz |
| Analog Inputs | 6 single-ended or 3 differential (individually configured) |
| Pulse Counters | 2 |
| Voltage Excitation Terminals | 2 (VX1, VX2) |
| Communications Ports |
|
| Switched 12 Volt | 1 terminal |
| Digital I/O |
|
| Input Limits | ±5 V |
| Analog Voltage Accuracy | ±(0.06% of reading + offset) at 0° to 40°C |
| ADC | 13-bit |
| Power Requirements | 9.6 to 16 Vdc |
| Real-Time Clock Accuracy | ±3 min. per year (Correction via GPS optional.) |
| Internet Protocols | FTP, HTTP, XML POP3, SMTP, Telnet, NTCIP, NTP |
| Communication Protocols | PakBus, Modbus, DNP3, SDI-12, SDM |
| Idle Current Drain, Average | 1 mA (@ 12 Vdc) |
| Active Current Drain, Average |
|
| Dimensions | 24.1 x 10.4 x 5.1 cm (9.5 x 4.1 x 2 in.) |
| Weight | 0.7 kg (1.5 lb) |
Features
Special Features
01
Integrated Keyboard & Display
Program, data transfers, and view measurements directly on site.
02
Expanded I/O Capabilities
Custom ASIC chip enhances pulse counting, control ports, and serial functions.
03
Flexible Programming Tools
Supports LoggerNet, PC400, and Short Cut software for simplified configuration.
04
Flexible Communication
Enables data transfer through wired or wireless interfaces for monitoring.
05
Flexible Connectivity
Includes CS I/O and RS-232 ports for communication devices.
06
System Expansion
Works with channel expansion peripherals for scalable configurations.
07
Battery-Backed Clock
Maintains accurate time even when disconnected from power.
08
Protected Inputs
Gas Discharge Tube (GDT) protection improves reliability.
Applications
