HL-20D-SET1

Data logger for humidity and temperature 

**HL-20D** 

## **Advantages** 

- Highest accuracy at 0.8 %rh and 0.3 °C and outstanding long-term stability 

- 20’000 data point memory with date & time stamps 

- Free evaluation and configuration software HW5 

## **Applications** 

- Logistics 

- Production & storage 

- Display and test applications in buildings and museums 

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## **Technical Information** 

|**Humidity measurement**|**Humidity measurement**|
|---|---|
|Measurement method|ROTRONIC HYGROMER® IN-1|
|Measurement range|0...100 %rh(non-condensing)|
|Accuracy at 23 °C|±1.3 %rh @ 0…10 %rh<br>±0.8 %rh @ 10…60 %rh<br>±1.3 %rh@60…100 %rh|
|Repeatability|0.3 %rh|
|py<br>Response time|Typical 3 min.(Depends on air flow)|
|p<br>Long-term stability|ypp<br>< 1 %rh/ year|
|gy<br>y<br>**Temperature**||
|Measurement method|PT100 RTD(IEC 751 Class A)|
|Measurement range|0…50 °C|
|Accuracyat 23 °C|±0.3 °C|
|Repeatability|0.05 °C|
|Response time|Typical 10 min.(depends on air flow)|
|Long-term stability|< 0.1 °C/ year|
|**Dewpoint**||
|Measurment method|• Calculation (from %rh and °C)<br>• Dew or frost point (user configurable<br>range)|
|**Logging function**||
|Logging modes|• Start-Stop (recording stops when<br>memory is full)<br>• Loop: oldest data is dumped to make<br>room for latest data|
|Logginginterval|Min 5 sec. Upto 1 hour in 5 sec. increments|
|LED indicator|• 5 sec. green flash when recording data<br>• 5 sec. red flash for out-of-limit value or<br>loggerproblem|
|**General specifications**||
|Device Type|Humidity-temperature data logger with<br>internal sensor(s)|
|Batterytype|3 x AA(1.5 V)alkaline|



|Battery life time|Depends on log interval and other settings.<br>_Examples based on a 30-minute log inter-_<br>_val:_Models with LC display and display<br>sleepfunction set to 1 minute: 13 months|
|---|---|
|Start-uptime|1.9 s(typical)|
|Data refresh rate|1.7 s(typical)|
|**Storage & recording specifications**||
|Recordingcapacity|20'000 valuepairs|
|Recordedparameter(s)|Relative humidityand temperature|
|Record media|Internal EEPROM non volatile, not remove-<br>able|
|**Service & data interface specifications**||
|Interface type|UART (universal Asynchronous Receiver<br>Transmitter)|
|Max. service cable<br>length|5 m (16.4 ft)|
|**Display & housing specifications**||
|Display|LC, 1 or 2 decimals resolution, blacklight,<br>alarm und low batteryindication|
|Housingmaterial|ABS|
|IPprotection|IP 40|
|Dimensions|130 x 72 x 32 mm(5.1 x 2.8 x 1.3”)|
|Weight|About 210g (7.4 oz)|
|**Order code**||
|HL-20D|HL-20D logger|
|HL-20D-SET1|HL-20D logger and service cable AC3006|
|**Delivery package**||
|HL-20D|HL-20D<br>Instruction Manual<br>Factory certificate<br>Screw with dowel for wall mounting<br>3 x AA Battery, packed with equipment and<br>reversepolarity protected|



1 

ProcessSensing.com 

Rotronic.com