THS90Q Industrial Ultra-Low Dew Point Transmitter
Features : Ultra-Low Dew Point Measurement, Fast Response and Low-Moisture Detection
Sensor type : QCM
Dew point scaling range : -100 ... 0 dp°C
Output : 4 ... 20 mA + RS-485 (Standard) / 0 ... 10 V + RS-485 (on request)
Accuracy : -80 ... -20 dp°C: ±2 dp°C / -100 ... -80 dp°C: ±3 dp°C
IP rating : IP54 (Housing) / IP20 (Probe)
THS90Q Industrial Ultra-Low Dew Point Transmitter
Features : Ultra-Low Dew Point Measurement, Fast Response and Low-Moisture Detection
Sensor type : QCM
Dew point scaling range : -100 ... 0 dp°C
Output : 4 ... 20 mA + RS-485 (Standard) / 0 ... 10 V + RS-485 (on request)
Accuracy : -80 ... -20 dp°C: ±2 dp°C / -100 ... -80 dp°C: ±3 dp°C
IP rating : IP54 (Housing) / IP20 (Probe)
Features
Ultra-Low Dew Point Measurement Range
Measurement range from -100 ... 0 dp°C, suitable for compressed air, desiccant drying, PSA nitrogen generation, and ultra-dry processes.
Segmented Accuracy for Ultra-Low Dew Point
Provides corresponding accuracy specifications across low dew point ranges from -100 ... -20 dp°C, helping users monitor dew point changes in ultra-dry processes.
Fast Response and Low-Moisture Detection
The QCM sensing signal provides distinguishable changes under low dew point conditions. With t90 < 30 s at +25 °C, dew point changes can be identified at an early stage.
On-Site Readout and System Integration
Supports display and output of dew point, ppmv, and ppmw values. Equipped with a 2-inch color LCD, 4 ... 20 mA, and RS-485 for convenient on-site reading and system integration.
Stable Measurement Design for Industrial Environments
Enhanced signal processing and EMC protection help reduce the effects of electrical interference and changing environmental conditions on low dew point measurement, improving measurement stability in industrial applications.
Specification
Input | |
Input type | QCM |
Operating range of dew point | -100 ... 0 dp°C |
Output | |
Max. scaling range | Dew point: -80 ... 0 dp°C |
Dew point conversion range | Absolute humidity (volume): 0 ... 1000 ppm/v |
Output signal | 4 ... 20 mA + RS-485 (Standard) |
Signal connection | 3-wire |
Linear accuracy | -80 ... -20 dp°C: ±2 dp°C |
Load resistance | Current output: ≤ 500 Ω |
Output calibration (ZERO & SPAN) adjustment range | Software |
Response time t90 (at +25°C) | < 30 sec |
Electrical | |
Power supply | DC 24 V±15% |
Current consumption | DC 24 V / 50 mA |
Electrical connection | M12 connector |
Environment | |
Medium | Air |
Operating temperature for housing | 0 ... +60°C |
Operating humidity for housing | 0 ... 95%RH (Non-condensing) |
Operating temperature for probe | 15 ... +50°C |
Storage temperature | -25 ... +50°C |
Installation | |
Installation | 1/2″G |
Protection | |
IP rating | Housing: IP54 (Probe: IP20) |
Electrical protection | ■ Reverse polarity ■ Over-voltage ■ Short-circuit |
Material | |
Housing | Aluminum alloy |
Probe | Stainless steel SUS304 / Sintered filter SUS316 |
Weight | 250 g |
Applications
CDA Compressed Dry Air Systems / PSA Nitrogen Generation and Air Separation Equipment / Desiccant Dryers / Plastic Drying Equipment / Semiconductor and Electronics Manufacturing Drying Systems / Industrial Drying Processes