Communication Transmitter

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Communication Transmitter (Model name : GHS-20) is an instrument to measure atmospheric humidity and temperature with digital sensor.

Communication Transmitter (Model name : GHS-20, an ideal product for demanding building energy management, has excellent and consistent safety and durability against chemicals and moisture.

With MCU (Micro Control Unit) in the transmitter body, it includes the functions to detect "sensor open error" and to compensate humidity and temperature easily.

Current analog output(2 channel, 4~20m

A) allows this transmitter to display humidity, temperature and dewpoint in the remote area. And it is also compatible with a variety of controllers.

And with the built-in data storage function to collect humidity, temperature and dewpoint data, it is easy to do data analysis, report, etc.

 

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Mechanical/Electrical Specification

 

Power Input

24VDC@1A

Current Consumption

0.5A (Max 1A)

Operating Temperature

0∼70℃(32 to 158°F)

Storage Temperature

-40 to 125℃(-40 to 257°F)

Case Material

Al Si12, DIN 1725

Protection Grade

IP 66, EN 60529

Output

4∼20mA Current Output (2 Channel)

(16bit Resolution)

Output Max. Load

500 Ohm(General 250 Ohm)

Communications

RS-232C

RS-485 for multiple connection up to 255 devices

(Proprietary Protocol)

Display

Graphic LCD 128×64 with White Backlight

User Interface

Programmable 5 Keys Push Buttons Switch

Logging Memory

1Years of data storage at 10 minutes

logging intervals, Total 16Mbit


 

Sensor Specification

Relative Humidity(RH).

Accuracy/Range

±2%RH (10∼90%RH)

±3.5%RH (0∼10, 90∼100%RH)

Non-linearity

<<1%RH

Response Time

4 Seconds

Repeatability

±0.1%RH

Resolution

0.1%RH(12bit)


 

 

 

 

 

 

 

 

 



 

 

Temperature(T)


Accuracy/Range

±0.3℃

0 ∼ 70℃

Response Time

5 Seconds

Repeatability

±0.1℃(±0.2°F)

Resolution

0.1℃(14bit)








 


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