DS1922E high-temperature iButton data logger (+15°C to +140°C)

Communication and construction

The DS1922E is configured through, and communicates with, a host device over the 1-Wire® serial protocol, which needs only a single data line plus a ground return. Every DS1922E carries a factory-set, guaranteed-unique 64-bit registration number for full traceability. The durable stainless steel package stands up well to environmental hazards such as dirt, moisture and shock.

Key features

• Wakes up automatically, measures temperature and stores values in 8 KB of data-log memory in 8-bit or 16-bit format
• Digital thermometer with 8-bit (0.5°C) or 11-bit (0.0625°C) resolution
• Temperature accuracy: ±1.5°C from +110°C to +140°C; ±7°C typical from +15°C to +110°C
• Water resistant, or waterproof when placed inside a DS9107 iButton capsule
• Sampling rate from 1s to 273hr
• Programmable high and low trip points for temperature alarms
• Programmable recording start delay, after an elapsed time or after a temperature alarm trip point
• Quick access to alarmed devices through the 1-Wire conditional search function
• 576 bytes of general-purpose memory
• Two-level password protection of all memory and configuration registers
• Operating temperature range: +15°C to +140°C

Applications

• High-temperature logging (process monitoring, industrial temperature monitoring)
• Steam sterilization