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首页>> 传感器类>> 温湿度传感器>> GDTH-1420 GDTH-1100 GDTHO-1420 GDTHO-1420Pt100

GDTH-1420
商品名称:GDTH-1420 GDTH-1100 GDTHO-1420 GDTHO-1420Pt100
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GDTH-1420 GDTH-1100 GDTHO-1420 GDTHO-1420Pt100 GDTHO-1420Pt1000 GDTHO-1420N3K温湿度变送器DUCT TEMP./HUMI. TRANSMITTER

 

DUCT TEMP./HUMI. TRANSMITTER(GDTH-1420)
"GDTHO" Duct Temperature Humidity Transmitter is intended for ventilation and air-handling units to detect Duct temperature and relative humidity.
Especially, This unit is very suitable for using in pulp/textile/food warehouse, greenhouse, computer room, R&D room, indoor swimming pool, hospital, etc.
This unit can be used with all system equipments that can receive output signals 4-20mA DC of the detector.
Relative Humidity
1)This Transmitter senses relative humidity by chargeable humidity sensing element
which varies electrical capacity depending on circumstantial relative humidity.
2)Electronic sensing circuit varies signal into 4 ~ 20mA DC
( within 0 ~ 100% relative humidity )
Temperature
This Transmitter senses temperature by sensing element of PT1000Ω which varies electrical resistance depending on sensing temperature.

SUPPLY VOLTAGE : 24V AC ± 20%
FREQUENCY : 50 or 60Hz
POWER CONSUMPTION : below 1VA
SENSING RANGE : -30 ~ +130℃ / 0 ~ 100%RH
HUMIDITY ELEMENT : Integrared Circuity 
ACCURACY ( at 20°C ) : at 20~90% RH, ±3%RH
OUTPUT SIGNAL : Pt1000Ω (Pt100Ω) / 4 ~ 20mADC
SENSING TIME : Apprx. 20sec. on Air convection
AMBIENT TEMPERATURE : 1) On operation : -15 ~ +80℃
AMBIENT HUMIDITY : 1) On operation : below 95%Rh
PROTECTION CLASS : IP54
CABLE FITTING : PF 1/2"
WEIGHT : 0.17Kg(W/BRACKET)

Mounting positions;
At the detector has to be mounted on supply duct, the detector must be kept between 3 to 8 meters from the humidifier unit.
For accurate measurement of the temperature, follow recommendation as;
- Steam humidifier; between 5 to 8 meters
- Spray water fogger; between 3 to 10 meters air duct supply
DUCT TEMP./HUMI. TRANSMITTER(GDTH-1100)
"GDTH" Duct Temperature Humidity Transmitter is intended for ventilation and air-handling units to detect Duct temperature and relative humidity.
Especially, This unit is very suitable for using in pulp/textile/food warehouse, greenhouse, computer room, R&D room, indoor swimming pool, hospital, etc.
This unit can be used with all system equipments that can receive output signals 0-10V DC of the detector.
Relative Humidity
1) This Transmitter senses relative humidity by chargeable humidity sensing element which varies electrical capacity depending on circumstantial relative humidity.
2) Electronic sensing circuit varies signal into 0 ~ 10V DC ( within 0 ~ 100% relative humidity )
Temperature
This Transmitter senses temperature by sensing element of PT1000Ω which varies electrical resistance depending on sensing temperature.

SUPPLY VOLTAGE : 24V AC/DC ± 20%
FREQUENCY : 50 or 60Hz
POWER CONSUMPTION : below 1VA
SENSING RANGE : -30 ~ +130℃ / 0 ~ 100%RH
HUMIDITY ELEMENT :Integrated Circuity
ACCURACY ( at 20°C ) : at 20 ~ 90% Rh, ±3%Rh
OUTPUT SIGNAL : Pt1000Ω(Pt100Ω) / 0 ~10 VDC
SENSING TIME : Apprx. 20sec. on Air convection
Permitted Velocity : 20 m/s
AMBIENT TEMPERATURE : 1) On operation : -15 ~ +80℃
AMBIENT HUMIDITY : 1) On operation : below 95%Rh
PROTECTION CLASS : IP54
CABLE FITTING : PF 1/2"
WEIGHT : 0.17Kg(W/BRACKET)

Mounting positions;
At the detector has to be mounted on supply duct, the detector must be kept between 3 to 8 meters from the humidifier unit.
For accurate measurement of the temperature, follow recommendation as;
- Steam humidifier; between 5 to 8 meters
- Spray water fogger; between 3 to 10 meters air duct supply
DUCT TEMP./HUMI. TRANSMITTER(GDTHO-1420)
GDTHO" Duct Temperature & Humidity Transmitter is intended for Ventilation and Air-handling units to the following usages ;
Sensing supplying or ventilating air humidity
Shift Sensor ( In case of revising room humidity depend on outside air humidity )
Measuring Sensor ( Display sensing value or in case of using DDC auto control system )
SUPPLY VOLTAGE : DC 15~30V  
OUTPUT SIGNAL : Current /4 ~ 20mA
SENSING RANGE : Temperature / 0 ~ +70°C , Humidity / 0 ~ 100%RH
SENSING ELEMENT : PT1000 / Integrated Circuity 
TEMPERATURE CO-EFFICIENT : 0.00385 OHMS
SELF-GENERATING CURRENT : below 2mA ( 0.02 OHM / 0.05 Deg. )
ACCURACY : at 20°C within ±3%RH ( humidity )
WIRING : 4 Wires
SENSING TIME : Within 1 minute at velocity 2m/s
AMBIENT TEMPERATURE : -5 ~ +70°C
AMBIENT HUMIDITY : below 95%Rh
CABLE FITTING : PF1/2"
PROTECTION CLASS : IP54 (EN60529)
WEIGHT ( Including bracket ) : 0.29 Kg
In case of controlling supplying air temp & humidity ;
- In case of installing Fan at the last air control unit, install behind of Fan
In case of controlling Ventilating air temp & humidity ;
- Install always at behind of Fan
DUCT TEMP./HUMI. TRANSMITTER(GDTHO-1420Pt100)
GDTHO-Pt" Duct Temperature & Humidity Transmitter is intended for Ventilation and Air-handling units to the following usages ;
Sensing supplying or ventilating air humidity
Shift Sensor ( In case of revising room humidity depend on outside air humidity )
Measuring Sensor ( Display sensing value or in case of using DDC auto control system )
SUPPLY VOLTAGE : DC 15~30V  
OUTPUT SIGNAL : Temperature / Pt100Ω, Humidity / 4 ~ 20mA
SENSING RANGE : Temperature / -30 ~ + 130°C , Humidity / 0 ~ 100%RH
SENSING ELEMENT : Pt100Ω / Integrated Circuity
SELF-GENERATING CURRENT : below 2mA
ACCURACY : at 25°C within ±0.3°C / at 10 ~ 90%RH, ±3%RH
WIRING : 4 Wire
SENSING TIME : within 1 minute at velocity 2m/s
AMBIENT TEMPERATURE : -5 ~ +70°C
AMBIENT HUMIDITY : below 95%Rh
CABLE FITTING : PF1/2"
PROTECTION CLASS : IP54 (EN60529)
WEIGHT ( including bracket ) : 0.23 Kg
In case of controlling supplying air temp & humidity ;
- In case of installing Fan at the last air control unit, install behind of Fan
In case of controlling Ventilating air temp & humidity ;
- Install always at behind of Fan
DUCT TEMP./HUMI. TRANSMITTER(GDTHO-1420Pt1000)

"GDTHO-Pt" transmitter can be used for HVAC and air-handling units as follows ;
Sensing supplying or ventilating air temperature and humidity, and for humidification or dehumidification
IC Industries, Hospital facilities, Laboratory, Swimming pool, Bank etc., for precision facilities
Measuring Sensor (Display sensing point or in case of using DDC Auto Control System)

Supply Voltage : DC 15~30V
Output Signal : Temperature / Pt1000Ω, Humidity / 4 ~ 20mA DC
Sensing Range : Temperature / -30 ~ 130℃ , Humidity / 0 ~ 100%RH
Sensing Element : Pt1000Ω, I ntegrated Circuity
Self-generating current : below 2mA ( 0.02OHM / 0.05 Deg. )
Accuracy : at 25℃, within ±0.3℃ (temperature)
at 10 ~ 90%RH, ±2%RH (humidity)
Sensing Time : 4 Sec. (Response time)
Ambient Temperature : -20 ~ +80℃
Ambient Humidity : below 95%Rh
Cable Fitting : PF 1/2"
Protection Class : IP 54 (EN60529)
Weight (including Bracket) : 0.23Kg

In case of controlling supplying air temperature and humidity
- In case of installing Fan at behind of the last air unit, install always at behind of Fan
In case of controlling ventilating air temperature and humidity

- Install always at behind of Fan
DUCT TEMP./HUMI. TRANSMITTER(GDTHO-1420N3K)
GDTHO-Pt" Duct Temperature & Humidity Transmitter is intended for Ventilation
and Air-handling units to the following usages
Sensing supplying or ventilating air humidity
Shift Sensor ( In case of revising room humidity depend on outside air humidity )
Measuring Sensor ( display sensing value or in case of using DDC auto control system )
SUPPLY VOLTAGE : DC 15~30V
OUTPUT SIGNAL : Temperature / N3KΩ, Humidity / 4 ~ 20mA
SENSING RANGE : Temperature / -30 ~ 130°C , Humidity / 0 ~ 100%RH
SENSING ELEMENT : NTC N3KΩ / Integrated Circuity
SELF-GENERATING CURRENT : below 2mA
ACCURACY : at 20°C within ±3%RH ( Humidity )
WIRING : 4 Wire
SENSING TIME : within 1 minute at velocity 2m/s
AMBIENT TEMPERATURE : -25 ~ +80°C
AMBIENT HUMIDITY : below 95%Rh
CABLE FITTING : PF1/2"
PROTECTION CLASS : IP54 (EN60529)
WEIGHT ( including bracket ) : 0.23 Kg

Engineering
In case of control : Preferably install on the wall of house or building and keep away from direct light.

In case of controlling Ventilating air temp & humidity :

  - Install always at behind of Fan.

In case of controlling supplying air temp & humidity
- In case of installing Fan at the last air control unit, install at behind of Fan
In case of controlling Ventilation air temp & humidity
- Install always at behind of Fan
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