The CR7 is a precision instrument that is primarily used in multi-parameter research and industrial applications. Each CR7 system is individually configured to meet the specific measurement needs of the customer.
This control module is the base of the measurement system, then the input/output module, datalogger enclosure, and I/O cards are added. As measurement needs change from study to study, the CR7 can be adapted by modifying the I/O card configuration.
The CR700X control module is the main component in a CR7—a large modular datalogger. It is ordered with internal PROMs (firmware) and temperature testing. The CR700X contains the system's CPU, ROM, RAM, a serial interface for communication with data storage/retrieval peripherals and connection of up to four I/O Modules (typically one alongside the CR700X and three at some distance to the CR700X), and a keyboard/display. Refer to the Configuration tab for software compatibility.
The CR700X also accommodates:
A complete CR7 consists of:
Modular design consists of:
|-NOTE-||Note: Additional specifications are listed in the CR7 Specifications Sheet.|
|Scan Rate||80 Hz|
|Memory||24K ROM; 40K RAM. 709 Card provides an additional 512K RAM.|
|Communication Ports||1 CS I/O|
|Baud Rate||300, 1200, 9600, or 76,800 (user selected)|
|I/O Module Interface||Optically isolated current loops allow connection of up to 4 I/O Modules. I/O Modules can be separated from the Control Module by up to 1,000 feet.|
|Clock Accuracy||±1 minute per month|