Difference between revisions of "TTJ Temperature sensor"
From Wiki Knowledge Base | Teltonika GPS
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| − | + | One of the implemented features for fleet management devices is 1-Wire data protocol, which enables connection of temperature sensors. It is a perfect accessory for temperature monitoring. | |
| − | + | '''TTJ IS A SOLUTION FOR FLEET MANAGEMENT TRACKER IN FOLLOWING CASES:''' | |
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| − | '''TTJ IS A SOLUTION FOR FLEET MANAGEMENT TRACKER IN FOLLOWING CASES:''' | ||
# Thermostatic controls – maintain temperature near a desired set point. | # Thermostatic controls – maintain temperature near a desired set point. | ||
# Thermally sensitive system – receive alerts when temperature enters or leaves pre-defined value. | # Thermally sensitive system – receive alerts when temperature enters or leaves pre-defined value. | ||
| − | # Consumer products – be assured that | + | # Consumer products – be assured that goods which you are delivering will maintain high quality. |
'''Description'''<br/> | '''Description'''<br/> | ||
| − | The | + | The DS18S20 digital thermometer provides 9-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18S20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. It has an operating temperature range of –55°C to +125°C and is accurate to ±0.5°C over the range of –10°C to +85°C. In addition, the DS18S20 can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply. Each DS18S20 has a unique 64-bit serial code, which allows multiple DS18S20s to function on the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many DS18S20s distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems. |
'''TTJ technical characteristics''' | '''TTJ technical characteristics''' | ||
| − | + | * Unique 1-Wire® Interface Requires Only One Port Pin for Communication | |
| − | * Unique 1-Wire® Interface Requires Only One Port Pin for Communication | + | * Each Device has a Unique 64-Bit Serial Code Stored in an On-Board ROM |
| − | * Each Device has a Unique 64-Bit Serial Code Stored in an On-Board ROM | + | * Multidrop Capability Simplifies Distributed Temperature Sensing Applications |
| − | * Multidrop Capability Simplifies Distributed Temperature Sensing Applications | + | * Requires No External Components |
| − | * Requires No External Components | + | * Can Be Powered From Data Line. Power Supply Range is 3.0V to 5.5V |
| − | * Can Be Powered From Data Line. Power Supply Range is 3. | + | * Measures Temperatures from -55°C to +125°C (-67°F to +257°F) ±0.5°C Accuracy from -10°C to +85°C |
| − | * Measures Temperatures from - | + | * 9-Bit Thermometer Resolution |
| − | * 9-Bit Thermometer Resolution | + | * Converts Temperature in 750ms (max) |
| − | * Converts Temperature in | + | * User-Definable Nonvolatile (NV) AlarmSettings |
| − | * User-Definable Nonvolatile (NV) | + | * Alarm Search Command Identifies and Addresses Devices Whose Temperature is Outside Programmed Limits (Temperature Alarm Condition) |
| − | * Alarm Search Command Identifies and Addresses Devices Whose Temperature is Outside Programmed Limits (Temperature Alarm Condition) | + | * Applications Include Thermostatic Controls, Industrial Systems, Consumer Products, Thermometers, or Any Thermally Sensitive System |
| − | * Applications Include Thermostatic Controls, Industrial Systems, Consumer Products, Thermometers, or Any Thermally Sensitive System | ||
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Revision as of 10:21, 29 April 2019
Main Page > Accessories > TTJ Temperature sensorOne of the implemented features for fleet management devices is 1-Wire data protocol, which enables connection of temperature sensors. It is a perfect accessory for temperature monitoring.
TTJ IS A SOLUTION FOR FLEET MANAGEMENT TRACKER IN FOLLOWING CASES:
- Thermostatic controls – maintain temperature near a desired set point.
- Thermally sensitive system – receive alerts when temperature enters or leaves pre-defined value.
- Consumer products – be assured that goods which you are delivering will maintain high quality.
Description
The DS18S20 digital thermometer provides 9-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18S20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. It has an operating temperature range of –55°C to +125°C and is accurate to ±0.5°C over the range of –10°C to +85°C. In addition, the DS18S20 can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply. Each DS18S20 has a unique 64-bit serial code, which allows multiple DS18S20s to function on the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many DS18S20s distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems.
TTJ technical characteristics
- Unique 1-Wire® Interface Requires Only One Port Pin for Communication
- Each Device has a Unique 64-Bit Serial Code Stored in an On-Board ROM
- Multidrop Capability Simplifies Distributed Temperature Sensing Applications
- Requires No External Components
- Can Be Powered From Data Line. Power Supply Range is 3.0V to 5.5V
- Measures Temperatures from -55°C to +125°C (-67°F to +257°F) ±0.5°C Accuracy from -10°C to +85°C
- 9-Bit Thermometer Resolution
- Converts Temperature in 750ms (max)
- User-Definable Nonvolatile (NV) AlarmSettings
- Alarm Search Command Identifies and Addresses Devices Whose Temperature is Outside Programmed Limits (Temperature Alarm Condition)
- Applications Include Thermostatic Controls, Industrial Systems, Consumer Products, Thermometers, or Any Thermally Sensitive System
