
MAMAC Systems HU-226-2-MA-7 Transducer
The MAMAC Systems HU-226-2-MA-7 is a contractor-grade duct humidity and temperature transducer engineered for high-performance HVAC and building automation systems. Built with a bulk polymer capacitive sensing element, this unit delivers a consistent 2% relative humidity accuracy across a 0-100% RH range. It integrates a 10,000 Ohm NTC thermistor (Type III) for precision temperature monitoring, providing a dual-point sensing solution in a single duct-mounted profile. The 4-20mA two-wire output ensures reliable signal transmission over long cable runs, while the 12-40VDC supply voltage makes it compatible with most standard industrial controllers. Encased in a rugged NEMA 4 (IP65) steel enclosure, the HU-226-2-MA-7 is designed to withstand harsh environments, featuring a hydrophobic ePTFE filter that protects the sensor from contaminants and condensation without sacrificing response time.
Key Benefits- Dual-Function Sensing: Consolidates RH and temperature sensing into one device, reducing installation labor and wiring complexity.
- Environmental Protection: The NEMA 4 enclosure and ePTFE filter shield internal electronics from dust, moisture, and corridor-bound contaminants.
- High Signal Integrity: Utilizing a 4-20mA current loop for humidity, the transducer minimizes electrical noise interference in commercial BAS applications.
- Field Serviceable: Features unpluggable terminal blocks and accessible zero/span trimmers for streamlined commissioning and maintenance.
Can the sensor handle condensing environments?
Yes, the polymer capacitance sensor is designed to recover from saturation. The ePTFE filter prevents liquid water from reaching the element while allowing water vapor to pass through for accurate measurement.
What is the maximum wire size for terminals?
The HU-226-2-MA-7 accepts up to 12 AWG copper wire, though 18-22 AWG shielded twisted pair is typically recommended for standard 4-20mA signal runs.
Is field calibration possible?
The unit comes factory-calibrated to NIST traceable standards. However, it includes non-interacting zero and span adjustments for technicians needing to perform field offsets using calibrated instrumentation.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $102.85
-65%$102.85
$36.00MAMAC Systems HU-226-2-MA-7 Transducer
The MAMAC Systems HU-226-2-MA-7 is a contractor-grade duct humidity and temperature transducer engineered for high-performance HVAC and building automation systems. Built with a bulk polymer capacitive sensing element, this unit delivers a consistent 2% relative humidity accuracy across a 0-100% RH range. It integrates a 10,000 Ohm NTC thermistor (Type III) for precision temperature monitoring, providing a dual-point sensing solution in a single duct-mounted profile. The 4-20mA two-wire output ensures reliable signal transmission over long cable runs, while the 12-40VDC supply voltage makes it compatible with most standard industrial controllers. Encased in a rugged NEMA 4 (IP65) steel enclosure, the HU-226-2-MA-7 is designed to withstand harsh environments, featuring a hydrophobic ePTFE filter that protects the sensor from contaminants and condensation without sacrificing response time.
Key Benefits- Dual-Function Sensing: Consolidates RH and temperature sensing into one device, reducing installation labor and wiring complexity.
- Environmental Protection: The NEMA 4 enclosure and ePTFE filter shield internal electronics from dust, moisture, and corridor-bound contaminants.
- High Signal Integrity: Utilizing a 4-20mA current loop for humidity, the transducer minimizes electrical noise interference in commercial BAS applications.
- Field Serviceable: Features unpluggable terminal blocks and accessible zero/span trimmers for streamlined commissioning and maintenance.
Can the sensor handle condensing environments?
Yes, the polymer capacitance sensor is designed to recover from saturation. The ePTFE filter prevents liquid water from reaching the element while allowing water vapor to pass through for accurate measurement.
What is the maximum wire size for terminals?
The HU-226-2-MA-7 accepts up to 12 AWG copper wire, though 18-22 AWG shielded twisted pair is typically recommended for standard 4-20mA signal runs.
Is field calibration possible?
The unit comes factory-calibrated to NIST traceable standards. However, it includes non-interacting zero and span adjustments for technicians needing to perform field offsets using calibrated instrumentation.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Product Information
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Description
The MAMAC Systems HU-226-2-MA-7 is a contractor-grade duct humidity and temperature transducer engineered for high-performance HVAC and building automation systems. Built with a bulk polymer capacitive sensing element, this unit delivers a consistent 2% relative humidity accuracy across a 0-100% RH range. It integrates a 10,000 Ohm NTC thermistor (Type III) for precision temperature monitoring, providing a dual-point sensing solution in a single duct-mounted profile. The 4-20mA two-wire output ensures reliable signal transmission over long cable runs, while the 12-40VDC supply voltage makes it compatible with most standard industrial controllers. Encased in a rugged NEMA 4 (IP65) steel enclosure, the HU-226-2-MA-7 is designed to withstand harsh environments, featuring a hydrophobic ePTFE filter that protects the sensor from contaminants and condensation without sacrificing response time.
Key Benefits- Dual-Function Sensing: Consolidates RH and temperature sensing into one device, reducing installation labor and wiring complexity.
- Environmental Protection: The NEMA 4 enclosure and ePTFE filter shield internal electronics from dust, moisture, and corridor-bound contaminants.
- High Signal Integrity: Utilizing a 4-20mA current loop for humidity, the transducer minimizes electrical noise interference in commercial BAS applications.
- Field Serviceable: Features unpluggable terminal blocks and accessible zero/span trimmers for streamlined commissioning and maintenance.
Can the sensor handle condensing environments?
Yes, the polymer capacitance sensor is designed to recover from saturation. The ePTFE filter prevents liquid water from reaching the element while allowing water vapor to pass through for accurate measurement.
What is the maximum wire size for terminals?
The HU-226-2-MA-7 accepts up to 12 AWG copper wire, though 18-22 AWG shielded twisted pair is typically recommended for standard 4-20mA signal runs.
Is field calibration possible?
The unit comes factory-calibrated to NIST traceable standards. However, it includes non-interacting zero and span adjustments for technicians needing to perform field offsets using calibrated instrumentation.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












