The DS1922E temperature logger iButton is a rugged, self-sufficient system that measures temperature and records the result in a protected memory section. The
recording is done at a user-defined rate. A total of 8192 8-bit readings or 4096 16-bit readings, taken at equidistant intervals ranging from 1s to 273hr, can be stored. Additionally, 576 bytes of SRAM store application specific information. A mission to collect data can be programmed to begin immediately, after a user-defined delay, or after a temperature alarm. Access to the memory and control functions can be password protected.
The DS1922E is configured and communicates with a host-computing device through the serial 1-Wire® protocol, which requires only a single data lead and a ground return. Every DS1922E is factory lasered with a guaranteed unique 64-bit registration number that allows for absolute traceability. The durable stainlesssteel package is highly resistant to environmental hazards such as dirt, moisture, and shock.
Features
- Operating Temperature Range from +15°C to +140°C
- Measures Temperature with 0.5°C or 0.0625°C Resolution
- Automatically Wakes up, Measures Temperature, and Stores up to 8192 Values in 8KB of Datalog Memory
- Temperature Accuracy: ±1.5°C from +110°C to +140°C
- Temperature Accuracy: ±7°C typical from +15°C to +110°C
- Sampling Rate from 1s Up to 273hr
- Water Resistant or Waterproof if Placed Inside DS9107 iButton Capsule (Exceeds Water Resistant 3 ATM Requirements)
- Programmable High and Low Trip Points for Temperature Alarms
- Programmable Recording Start Delay After Elapsed Time or Upon a Temperature Alarm Trip Point
- Quick Access to Alarmed Devices Through 1-Wire Conditional Search Function
- 576 Bytes of General-Purpose Memory
- Two-Level Password Protection of All Memory and Configuration Registers
- Communicates to Host with a Single Digital Signal Up to 15.4kbps at Standard Speed or Up to 125kbps in Overdrive Mode Using 1-Wire Protocol
Common iButton Features
- Digital Identification and Information by Momentary Contact
- Unique Factory-Lasered 64-Bit Registration Number Ensures Error-Free Device Selection and Absolute Traceability Because No Two Parts Are Alike
- Built-In Multidrop Controller for 1-Wire Net
- Chip-Based Data Carrier Compactly Stores Information
- Data Can Be Accessed While Affixed to Object
- Button Shape is Self-Aligning with Cup-Shaped Probes
- Durable Stainless-Steel Case Engraved with Registration Number Withstands Harsh Environments
- Easily Affixed with Self-Stick Adhesive Backing, Latched by Its Flange, or Locked with a Ring Pressed Onto Its Rim
- Presence Detector Acknowledges When Reader First Applies Voltage
Applications
- High-Temperature Logging (Process Monitoring, Industrial Temperature Monitoring)
- Steam Sterilization
F5 MicroCAN
