Humidity and Temperature Data-Logger iButton Monitors Perishables Anywhere
| Status |
| Part Number |
Status |
| DS1923 |
Active: In production, but some versions are no longer available. See Ordering Information. |
| Description |
|
The DS1923 temperature/humidity logger iButton® is a rugged, self-sufficient system that measures temperature and/or humidity 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 273hrs can be stored. In addition to this, there are 512 bytes of SRAM for storing application-specific information and 64 bytes for calibration data. A mission to collect data can be programmed to begin immediately, or after a user-defined delay or after a temperature alarm. Access to the memory and control functions can be password-protected. The DS1923 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 DS1923 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 DS1923 to be mounted on almost any object, including containers, pallets and bags. |
This product contains lithium-metal batteries. See applicable regulations for transport requirements for batteries in equipment.
| Key Features |
|
Applications/Uses |
- Digital Hygrometer Measures Humidity with 8-Bit (0.6%RH) or 12-Bit (0.04%RH) Resolution
- Operating Range: -20°C to +85°C; 0 to 100%RH (see Safe Operating Range Graph in the full data sheet)
- Automatically Wakes Up, Measures Temperature and/or Humidity 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
- Temperature Accuracy Better than ±0.5°C from -10°C to +65°C with Software Correction
- Built-in Humidity Sensor for Simultaneous Temperature and Humidity Logging
- Capacitive Polymer Humidity-Sensing Element
- Hydrophobic Filter Protects Sensor Against Dust, Dirt, Contaminants, and Water Droplets/Condensation
- 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 and Humidity Alarms
- Quick Access to Alarmed Devices Through 1-Wire Conditional Search Function
- 512 Bytes of General-Purpose Memory 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
- Individually Calibrated in a NIST-Traceable Chamber
- Calibration Coefficients for Temperature and Humidity Factory Programmed into Nonvolatile (NV) Memory
- 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
- Underwriters Laboratories (UL®) Recognized
|
|
- Environmental Studies/Monitoring
- Temperature and Humidity Logging in Food Preparation and Processing
- Transportation of Temperature- and Humidity-Sensitive Goods, Industrial Production
- Warehouse Monitoring
|
| Key Specifications: iButton Products |
| Part Number |
Overview |
Memory Type |
Memory Size |
Data Logger Type |
Data Logger Size |
Data Logger Sample Rate |
Data Logger Accuracy |
Data Logger Resolution |
Data Logger Measuremt. Range |
Security Features |
Prog. Alarm |
Unique Ware |
Real Time Clock |
Smallest Available Pckg.
(mm2) |
Price |
| max w/pins |
See Notes |
| DS1923 |
Temperature/Humidity Sensor iButton |
NV SRAM |
512 Bytes |
|
8192 Byte |
1s to 273hrs |
Correctible to ±0.5°C |
Selectable 8-bit (0.5°C) or 11-bit (0.0625°C) |
| -20°C to +85°C |
| 0 to 100%RH | |
Password Protected |
| Humidity High/Low |
| Temperature High/Low | |
No |
Yes |
301 |
$54.50 @1k |
| See All iButton Products (26) |
| Diagram |
 |
source：ShenZhen henlito electronic co.,ltd.
web:www.henlito.com
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