EdgeTech DEWTECH 390 Peltier Cooled Dewpoint Indicator
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EdgeTech DEWTECH 390 three-stage Peltier cooled mirror hygrometer measuring dewpoint as low as -90°C with ±0.2°C accuracy, dual alarm outputs, and RS232/analog connectivity.
Product details
| Model | DEWTECH 390 |
| Manufacturer | EdgeTech |
| Category | Temperature Indicators |
| Availability | Made to order |
Description
Overview
The EdgeTech DEWTECH 390 is a bench-top mounted peltier cooled mirror dewpoint indicator designed to measure extremely low moisture levels in gases. The three-stage peltier cooling system enables measurement of dewpoint temperatures as low as -90°C (-130°F), providing accurate quantification of ultra-dry gases. The instrument delivers accuracy to ±0.2°C dewpoint and offers multiple display formats and output options for integration into process control systems.
Key Features
- Three-stage Peltier cooled mirror system
- Measurement range: -90°C to ambient (approximately +20°C)
- Accuracy: ±0.2°C dewpoint
- Multiple measurement displays: °C dewpoint, °F dewpoint, %RH, ppm(v), and pressure compensation
- 8-line graphic display with backlight
- Dual alarm capability, programmable latching or auto-reset mode
- Bench or counter-top standing design
- Front panel access to all main components including mirror cleaning
- Serial and analog outputs (RS232)
- Scalable 0-5 VDC, 4-20 mA, 0-10 VDC, or 0-20mA outputs
- Auto balance control
- Optional pressure transducer input for atmospheric compensation
Applications
- Ultra-dry gas measurement and verification
- Cryogenic system monitoring
- High-purity gas quality assurance
- Process control and optimization
- Semiconductor and electronics manufacturing
Specifications
| Dewpoint Range | -90 to +20°C (-130 to +68°F) |
| Accuracy | ±0.2°C dewpoint |
| Display Options | °C, °F, %RH, ppm(v) |
| Display Type | 8-line graphic with backlight |
| Cooling System | Three-stage Peltier |
| Pressure Compensation | Available with external transducer |
| Alarm Capability | Dual alarms, programmable latching or auto-reset |
| Analog Outputs | 0-5 VDC, 4-20 mA, 0-10 VDC, 0-20mA |
| Serial Interface | RS232 |
| Mounting Style | Bench or counter-top standing |
| Mirror Cleaning | Front panel accessible |
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EdgeTech DEWTECH 390 Peltier Cooled Dewpoint Indicator
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