DS1921G-F5# Thermochron

€27.86 excl tax
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Thermochron DS1921G-F5# (-40°C/+85°C | 2k)
Availability: Out of stock - on backorder and will be dispatched once in stock (7 weeks).
SKU: 150.001.19210
This product has a minimum quantity of 10

The Thermochron® iButton® device DS1921G 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, both as a direct storage of temperature values as well as in the form of a histogram. Up to 2048 temperature values taken at equidistant intervals ranging from 1 to 255min can be stored. The histogram provides 63 data bins with a resolution of 2.0°C. If the temperature leaves a user-programmable range, the DS1921G also records when this happened, for how long the temperature stayed outside the permitted range, and if the temperature was too high or too low. An additional 512 bytes of battery-backed SRAM allow storing information pertaining to the object to which the DS1921G is associated. Data is transferred serially through the 1-Wire® protocol, which requires only a single data lead and a ground return. Every DS1921G is factory lasered with a guaranteed unique, electrically readable, 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 DS1921G to be mounted on almost any object including containers, pallets, and bags.

 

Key Features

  • Digital Thermometer Measures Temperature in 0.5°C Increments
  • Accuracy ±1°C from -30°C to +70°C
  • Built-In Real-Time Clock (RTC) and Timer Has Accuracy of ±2 Minutes per Month from 0°C to +45°C
  • Water Resistant or Waterproof if Placed Inside DS9107 iButton Capsule (Exceeds Water Resistant 3 ATM Requirements)
  • Automatically Wakes Up and Measures Temperature at User-Programmable Intervals from 1 Minute to 255 Minutes
  • Logs Consecutive Temperature Measurements in 2kB of Data-Log Memory
  • Records a Long-Term Temperature Histogram with 2.0°C Resolution
  • Programmable Temperature High and Temperature Low Alarm Trip Points
  • Records Up to 24 Timestamps and Durations When Temperature Leaves the Range Specified by the Trip Points
  • 512 Bytes of General-Purpose Battery-Backed SRAM
  • Communicates to Host with a Single Digital Signal at 15.4kbps or 125kbps Using 1-Wire Protocol

 

Common iButton Device Features

  • Digital Identification and Information by Momentary Contact
  • Unique, Factory-Lasered, and Tested 64-bit Registration Number (8-bit Family Code + 48-bit Serial Number + 8-bit CRC Tester) Assures Absolute Traceability Because No Two Parts are Alike
  • 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

 Datasheet

Products specifications
Temperature Range -40°C ... +85°C
Resolution (Temp.) 0.5°C
Accuracy (Temp.) ±1°C
Sample Rate 1 ... 255 min
Memory Capacity 2048 readings
LCD No
Battery 3.6V non replaceable
IP Rating IP56

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