Remote-type chilled mirror dew point hygrometer with separate mirror sensor and monitor units
DewStar R-1
Dew Point Range: -40 ℃DP to 23 ℃DP
DewStar R-1, based on the globally trusted and long-selling standard model S-1, maintains its high precision and excellent long-term stability while featuring a remote design with the mirror sensor unit separated from the monitor. Available in desktop or rack-mount configurations, it supports a wide range of applications.
Brochure (English)
Features
- Equipped with a uniquely designed AccuStar (automatic mirror cleaning mechanism).
- Optional durable platinum mirror enables measurement of corrosive gases.
- Calculation functions allow on-site confirmation of various measurement values.
- Separate sensor and monitor units connected via cable.
- Remote monitoring enabled by installing sensor and monitor units in different locations.
- Monitor unit available in desktop or rack-mount configurations.
- Sensor unit can be externally mounted using attachment brackets.
Dimensions
Monitor Unit
(Desktop Type)
Monitor Unit
(Rack-Mount Type)
Sensor Unit
Order Code
| Code | Mirror | Sensor Unit Coating *1 | Heater *2 |
| R-1S-0 | Rhodium | x | x |
| R-1S-4 | Platinum | x | x |
| R-1S-6 | Platinum | o | x |
*1 Platinum mirror and sensor unit coating enable measurement of corrosive gases. For details on compatible gases, please contact us.
*2 For measuring dew points higher than ambient temperature. This option must be specified at the time of factory shipment and cannot be retrofitted later.
| Product Name | Chilled mirror optical dew point hygrometer |
| Model | DewStar R-1 |
| Dew Point / Frost Point Range | -40 ~ 23 ℃DP（at 23℃） |
| Accuracy | ± 0.2 ℃DP |
| Repeatability | ± 0.05 ℃DP |
| Operating Conditions | Sensor Unit: -10 ~ 60 ℃ Monitor Unit: 0 ~ 35 ℃, ≤ 95%rh (non-condensing) |
| Operating Pressure | -0 ~ 0.5 MPaG |
| Sampling Flow Rate | 0.1 ~ 2.5 L/min |
| Measured Values | Dew Point / Frost Point (℃) Temperature (℃) Pressure (kPa) |
| Calculated Values | Relative Humidity (%rh) Absolute Humidity (g/m³) Moisture Content (PPMv, PPMw) |
| Outputs | Digital: RS-232C (Measurement or Calculated Values) Analog: 4 ~ 20 mA, 0 ~ 5 VDC PhotoMOS Relay |
| Sample Gas IN-OUT | 1/4″ Compression Fitting PT |
| Power Supply | AC 90 ~ 265 V（50 / 60 Hz） |
| Power Consumption | 50 W |
| Weight | Sensor Unit: Approx. 2.0 kg Monitor Unit: Approx. 3.2 kg |
Options
- Temperature Sensor S-1S-001
- Air Pump Unit S-PU
Technical Documents
- Brochure (English)