The HT1D Series is designed with both the engineer and field technician in mind. The HT1D Series combines excellent stability with reliable operation in 2% or 3% RH accuracy options. Optional temperature transmitters, RTDs and thermistors add further flexibility when ordering. The standard LCD and field replaceable elements make the initial installation and future service a breeze.
- HVAC room humidity and temperature measurement and control
- Replaceable element is ideal for difficult environments such as swimming pools
- Facilitating compliance with ASHRAE 62.1 standard for air quality
- Indoor air comfort and control in HVAC systems
- Maintain healthy air quality, minimize mold and other contaminants
- Museums, hospitals & other critical environments
- Offices, conference rooms, & indoor public areas
- Industrial process control environments

Power Supply |
AC Supply/DC Supply |
24VAC, 100mA max. /12-30VDC, 50mA max. |
Outputs |
RH% and Temperature |
3-wire 0-5/10V(4) (jumper) or 2-wire 4-20mA, selectable |
Output scaling |
RH% |
0-100% RH |
Thermistor/RTD |
Optional |
See ordering table |
Media filter |
PBT with water-vapor permeable membrane |
|
Relative Humidity |
Accuracy |
2% models, ±2% max 0 to 100%RH; ±1.5% typ 0 to 80% RH @25°C |
Temperature |
Accuracy |
2% models, <±0.25°C; 0.1°C typ @ 25° C |
Enclosure |
Materials |
ABS/Polycarbonate |
- One side of transformer, secondary is connected to signal common. Dedicated transformer is recommended.
- Time for reaching 63% of reading at 25° C and 1 m/s airflow.
- Long term exposures to conditions outside normal range at high humidity may temporarily offset the RH reading (+3%RH after 60 hours.)
- 15-30VDC/24VAC power supply voltage required for 10 volt output.