參數(shù)資料
型號(hào)： DS1923-F5
英文描述： Hygrochron Temperature/Humidity Logger iButton with 8kB Data Log Memory
中文描述： Hygrochron溫度/濕度記錄儀與8KB數(shù)據(jù)記錄存儲(chǔ)器iButton的
文件頁(yè)數(shù)： 25/52頁(yè)
文件大小： 495K
代理商： DS1923-F5
DS1923: Hygrochron Temperature/Humidity Logger iButton with 8kB Data Log Memory
Figure 7B. TWO CHANNEL LOGGING, EQUAL RESOLUTION
ETL = EHL = 1
TLFS = HLFS = 0
TLFS = HLFS = 1
25 of 52
Temperature
4096
8-bit entries
Humidity Data
4096
8-bit entries
Temperature
2048
16-bit entries
Humidity Data
2048
16-bit entries
1FFFh
2000h
1000h
2FFFh
1FFFh
2000h
1000h
2FFFh
ETL = EHL = 1
With 16-bit format,
the most-significant
byte is stored at the
lower address.
Figure 7C. TWO CHANNEL LOGGING, DIFFERENT RESOLUTION
ETL = EHL = 1
TLFS = 0; HLFS = 1
2E00h
2FFFh
Temperature
2560
8-bit entries
Humidity Data
2560
16-bit entries
(not used)
Humidity Data
2560
8-bit entries
(not used)
Temperature
2560
16-bit entries
19FFh
1A00h
1000h
2DFFh
2E00h
2FFFh
2DFFh
2400h
1000h
23FFh
ETL = EHL = 1
TLFS = 1; HLFS = 0
With 16-bit format,
the most-significant
byte is stored at the
lower address.
MISSIONING
The typical task of the DS1923 iButton is recording temperature and/or humidity. Before the device can perform
this function, it needs to be set up properly. This procedure is called missioning.
First of all, DS1923 needs to have its real-time clock set to valid time and date. This reference time may be the
local time, or, when used inside of a mobile unit, UTC (also called GMT, Greenwich Mean Time) or any other time
standard that was agreed upon. The real-time clock oscillator must be running (EOSC = 1). The memory assigned
to store the Mission Time Stamp, Mission Sample Counter, and Alarm Flags must be cleared using the Memory
Clear command. To enable the device for a mission, at least one of the enable logging bits (ETL, EHL) must be set
to 1. These are general settings that have to be made in any case, regardless of the type of object to be monitored
and the duration of the mission.
If alarm signaling is desired, the temperature alarm and/or humidity alarm low and high thresholds must be defined.
How to convert a temperature value into the binary code to be written to the threshold registers is described under
“Temperature Conversion” earlier in this document. Determining the thresholds for the humidity alarm is described
in section “Humidity Conversion”. In addition, the temperature and/or humidity alarm must be enabled for the low-
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1923-F5# 功能描述:iButton Hygrochron Temp/Hum Logger w/8KB DataLog RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated
DS1923-F5#W 功能描述:iButton Hygrochron Temp/Hum Logger w/8KB DataLog RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated
DS1923-F5+ 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated
DS19310 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Color TV Owners Manual Manuel dinstructions du teleouleur Color TV Manual Del Propietario
DS193-K 制造商:Miyama Electric 功能描述:
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