Details

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BUY DS1921G-F5 https://www.utsource.net/itm/p/12591358.html

Parameter	Description	DS1921G-F5 Specifications
Device Type	Temperature Logger with Alarm and Timekeeping	Single-chip temperature logger with alarm and timekeeping
Temperature Range	Operating temperature range	-40°C to +85°C
Accuracy	Accuracy of temperature measurement	±0.5°C from -10°C to +65°C, ±1.0°C from -40°C to -10°C and +65°C to +85°C
Resolution	Resolution of temperature readings	0.5°C or 0.0625°C
Memory	Non-volatile memory for logging	2048-bit EEPROM
Logging Capacity	Number of temperature samples that can be stored	Up to 8,368 temperature samples
Sample Rate	Frequency at which temperature is logged	Programmable from one sample per minute to one sample every 255 minutes
Alarm Function	Temperature alarm capability	Yes, programmable high/low temperature alarms
Power Supply	Voltage range	2.8V to 5.25V
Communication Interface	Interface used for data retrieval	1-Wire protocol
Package Type	Physical package	TO-46 metal can
Operating Humidity	Environmental humidity	0% to 95%, non-condensing

Instructions for Use:

1. Setup:

   • Connect the DS1921G-F5 to a microcontroller or host system that supports the 1-Wire protocol.
   • Initialize the device using the appropriate 1-Wire commands.

2. Configuration:

   • Set the desired logging parameters including sample rate, start and stop times, and alarm thresholds.
   • Configure the resolution for temperature measurements (0.5°C or 0.0625°C).

3. Start Logging:

   • Initiate the logging process by sending the appropriate command via the 1-Wire interface.
   • The device will automatically log temperature data according to the programmed settings.

4. Monitoring Alarms:

   • Check for alarm conditions periodically or set up an interrupt to notify when an alarm condition is met.

5. Data Retrieval:

   • Stop the logging session if necessary.
   • Retrieve the logged data from the EEPROM memory using 1-Wire commands.

6. Post Processing:

   • Analyze the retrieved temperature data as needed for your application.

7. Power Management:

   • Ensure the device remains within the specified power supply range during operation.
   • Consider battery backup options for uninterrupted logging in case of power loss.

(For reference only)