DUCT HUMIDITY TRANSMITTER(GDH-420) |
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"GDH" Duct Humidity Transmitter is intended for an electronic Humidity transmitter to measures the Duct Relative Humidity (RH) and converts the measurement into and electric signal. |
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This unit can be used with all system equipments that can receive output signals 4 ~ 20mA DC of the detector. |
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This Transmitter senses relative humidity by chargeable humidity sensing element which varies electrical capacity depending on circumstantial relative humidity. Electronic sensing circuit varies signal into 4 ~ 20mA DC ( within 0 ~ 100% relative humidity ). Sensing Accuracy is ±3% within usable range of 20 ~ 90% RH. |
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SUPPLY VOLTAGE |
: 24V AC/DC ±20%
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FREQUENCY |
: 50 or 60㎐ |
POWER CONSUMPTION |
: below 0.5VA |
SENSING RANGE |
: 0 ~ 100% Rh |
SENSING ELEMENT |
: Integrated Circuity |
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ACCURACY |
: 20°C at 20~90%Rh with in ±3%Rh
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OUTPUT SIGNAL |
: 4 ~ 20mA DC
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SENSING TIME |
: Apprx. 20 sec. (velocity 20m/s)
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AMBIENT TEMPERATURE |
: 1) On Operation : -5 ~ +50℃ 2) On Transportation & Storage : -25 ~ +70°C
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AMBIENT HUMIDITY |
: 1) On Operation : 5 ~ 100%Rh 2) On Transportation : below 95% Rh |
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WEIGHT |
: 0.17Kg (W/BRACKET) |
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CABLE FITTING |
: PF 1/2"
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PROTECTION CLASS |
: IP 54 | |
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Installation Location; When 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 relative humidity, Follow recommendation as ; -Steam humidifier; between 5 to 8 meters -Spray water fogger; between 3 to 10 meters | |
DUCT HUMIDITY TRANSMITTER(GDH-110) |
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"GDH" Duct Humidity Transmitter is intended for an electronic Humidity transmitter to measures the Duct Relative Humidity (RH) and converts the measurement into and electric signal. |
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This unit can be used with all system equipments that can receive output signals 0 ~ 10VDC of the detector. |
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This Transmitter senses relative humidity by chargeable humidity sensing element which varies electrical capacity depending on circumstantial relative humidity. Electronic sensing circuit varies signal into 0 ~ 10VDC ( within 0 ~ 100% relative humidity ). Sensing Accuracy is ±3% within usable range of 20 ~ 90% RH. |
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SUPPLY VOLTAGE |
: 24V AC/DC ±20%
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FREQUENCY |
: 50 or 60㎐ |
POWER CONSUMPTION |
: below 0.5VA |
SENSING RANGE |
: 0 ~ 100% Rh |
SENSING ELEMENT |
: Integrated Circuity |
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ACCURACY |
: 20°C at 20~90%Rh with in ±3%Rh
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OUTPUT SIGNAL |
: 0 ~ 10V DC (0 ~ 1V DC) |
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SENSING TIME |
: Apprx. 20 sec(velocity 20m/s)
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AMBIENT TEMPERATURE |
: 1) On Operation : -5 ~ +50℃ 2) On Transportation & Storage : -25 ~ +70°C
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AMBIENT HUMIDITY |
: 1) On Operation : 5 ~ 100%Rh 2) On Transportation : below 95% Rh |
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WEIGHT |
: 0.17Kg (W/BRACKET) |
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CABLE FITTING |
: PF 1/2"
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PROTECTION CLASS |
: IP 54 | |
DUCT HUMIDITY TRANSMITTER(GDHO-420) |
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"GDHO “ Duct 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 ) |
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SUPPLY VOLTAGE |
: 15 ~ 30 V DC |
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OUTPUT SIGNAL |
: 4 ~ 20 mA |
SENSING RANGE |
: 0 ~ 100%RH |
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SENSING ELEMENT |
: Integrated Circuity |
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ACCURACY |
: 20°C at 20~90%Rh within ± 3%Rh |
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WIRING |
: 2 Wire |
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SENSING TIME |
: Apprx.1 min. at 2m/s velocity
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AMBIENT TEMPERATURE |
: -5 ~ +70°C
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AMBIENT HUMIDITY |
: 1) On Operation : below 5 ~ 100%RH 2) On Transportation : below 95%RH |
CABLE FITTING |
: PF1/2"
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PROTECTION CLASS |
: IIP54 (EN60529)
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WEIGHT |
: 0.25Kg ( including bracket ) |
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In case of controlling supplying air humidity - In case of installing Fan at the last air control unit, install behind of Fan - For the other cases, install at least 1.5M away from the last air control unit In case of controlling ventilating air humidity - Install always at behind of Fan
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