The DS1922T 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 DS1922T is factory-lasered with a guaranteed unique 64-bit registration number that allows for absolute traceability. The durable stainless-steel package is highly resistant to environmental hazards such as dirt, moisture, and shock. Accessories permit the DS1922T to be mounted on almost any object, including containers, pallets, and bags.
Special Features
Automatically Wakes up, Measures Temperature, and Stores Values in 8KB of Datalog Memory in 8- or 16-Bit Format
Digital Thermometer Measures Temperature with 8-Bit (0.5°C) or 11-Bit (0.0625°C) Resolution
Accuracy of ±0.5°C from +20°C to +75°C with Software Correction
Water resistant or waterproof if placed inside DS9107 iButton capsule (Exceeds Water Resistant 3 ATM requirements)
Sampling Rate from 1s up to 273hrs
Programmable Recording Start Delay After Elapsed Time or Upon a Temperature Alarm Trip Point
Programmable High and Low Trip Points for Temperature Alarms
Quick Access to Alarmed Devices Through 1-Wire Conditional Search Function
512 Bytes of General-Purpose Plus 64 Bytes of Calibration Memory
Two-Level Password Protection of All Memory and Configuration Registers
Communicates to Host with a Single Digital Signal at up to 15.4kbps at Standard Speed or up to 125kbps in Overdrive Mode Using 1-Wire Protocol
Operating Range: 0 to +125°C
Common iButton Features
Digital identification and information by momentary contact.
Unique factory-lasered 64-bit registration number assures 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.
Meets UL#913 (4th Edit.); Intrinsically Safe Apparatus: approved under Entity Concept for use in Class I, Division 1, Group A, B, C, and D Locations.
Application
With its shifted temperature range, the DS1922T is suited to monitor processes that require temperatures close to the boiling point of water, such as pasteurization of food items.
Note that the initial sealing level of DS1922T achieves the equivalent of IP56. Aging and use conditions can degrade the integrity of the seal over time, so for applications with significant exposure to liquids, sprays, or other similar environments, it is recommended to place the Thermochron in the DS9107 iButton capsule.
