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Do you need to measure absolute humidity in temperatures up to 350°C (662°F)?
we have the right sensor for you
Absolute Humidity Analogue Sensor HT350
High temperature absolute humidity analogue sensor using latest heat pipe technology, suitable for process temperatures as high as 350°C (662°F).
Measuring of absolute humidity as well as the process temperature.
The humidity sensor works on the dew point & heat pipe principle, based on a stable thermal system.
The robust sensor tip is completely sealed and allows to be used in polluted environment applications. Therefore, easy cleaning is possible, if necessary.
Two versions, with active and passive cooling respectively are available.
Passive cooling is recommended to be selected for applications with polluted environments.
Features
- Absolute humidity measuring
- Temperature measuring
- Direct placement in process room
- Sealed metal measuring tip
- Contamination resistant
- Maintenance-free
- Easy mounting
Technical Data
| Humidity measuring range | 0 … 100 Vol% @ t > 100 °C |
| Humidity accuracy | at 20Vol%: ± 3,5% |
| at 90Vol%: ± 1,5% | |
| Response time | (t90) |
| with increase of | 20 … 100Vol%: <10s |
| with decrease of | 100 … 20Vol%: <60s Stabilization |
| after switching | approx. 10min |
| Temperature measuring range | 0 … 350 °C |
| Temperature accuracy | 0,5 ° ± 0,75 % of range |
| Operating temperature | Probe 0 … 350 °C |
| Electronics 5 … 60 °C | |
| Outputs | |
| Moisture | 4 … 20 mA, Load < 600Ω |
| 0 … 10V optional, Load >600Ω | |
| short circuit protected | |
| Temperature | 0-10V …Load > 600Ω, |
| short circuit protected | |
| RS 485 Interface | |
| Power supply | 12 VDC |
| Current consumption | 8,5 A |
| Electrical connection | terminal blocks |
| Probe dimensions | |
| Length | 140 mm + 50 mm |
| Diameter | 26,9mm/3mm/4mm |
| Material | |
| Electronics | Plastic Housing |
| Humidity | Copper, Nickel |
| Temperature sensor | V4A, 1.4301 |
| Protection rating | Probe IP67, Electronics IP 65 |
Applications
- Drying systems
- Baking ovens
- Ceramic dryers
- Kilns — tunnel kilns
- Food industry
- Animal feed production
- Cement industry
- Wood industry