Cost-Effective Humidity & Temperature Reference Hygrometer
The MBW CALIBRATION™ MODEL 473-SH2™ Dew Point Chilled Mirror Analyzer with a cable mounted measuring head with an integrated sample flow control fan delivers fast, high precision temperature measurement. It is ideal for use in climatic chambers or humidity generators where it functions as a calibration transfer standard for dew/frost point, relative humidity, and temperature. The 473-SH2 includes precise measurement of temperature with a 2 x 100 mm platinum resistance thermometer (PRT) that can be connected directly to the SH2 measuring head, or to the MODEL 473 display. Our MODEL 473-SH2 Dew Point Chilled Mirror Analyzer is a specialized version of the MODEL 473 that is specifically designed for measuring the dew point of corrosive gases, such as hydrogen sulfide (H2S).
FEATURES
- Cable mounted dew point mirror
- Sample gas flow fan
- Integrated temperature probe
- User replaceable optical components
- Easy mirror access for cleaning
- Optional barometric pressure measurement
All 473 instruments are delivered as complete measurement sets that include:
- 473 display
- Measuring head
- Measuring head cable
- Pt-100 temperature probe and cables
- Factory calibration certificate*
- IP65 transport case
In combination with the T12 multichannel thermometer, the 473 is particularly well suited to climatic chamber validation projects.
* For a small additional cost, the factory calibration can be upgraded to ISO17025 accredited calibration
APPLICATIONS
- Climatic chamber validation
- RH generator transfer standard
- Calibration reference
- Engine Test Cells
- Process validation
SALES | TRAINING INQUIRIES
AMERICAS: info.americas@process-insights.com
EMEAI (includes India): info.emeai@process-insights.com
APAC: info.apac@process-insights.com
CHINA: info.cn@process-insights.com
Key Specifications
Measuring Ranges
Frost/Dew Point -20…+70 °C
Relative humidity 5…99 %rh *
Temperature -50…+100 °C **
Accuracy
Frost/Dew point ≤ ± 0.1 °C
Temperature ≤ ± 0.07 °C
Reproducibility
Frost/Dew point ≤ ± 0.05 °C
Temperature ≤ ± 0.03 °C
* Please note the operating conditions: The measuring head as well as the connectors must be operated under non-condensing conditions.
** The maximum temperature of the SH2 measuring head is 80°C, so to measure temperature up to 100 °C requires the temperature probe to be cable mounted.
BENEFITS
- High accuracy: Uses the chilled mirror technique to measure dew point temperature, which is considered to be the most accurate method for measuring humidity. The instrument provides high accuracy and repeatability, with a measurement uncertainty of ±0.05°C.
- Wide measurement range: Can measure dew point temperatures from -100°C to +120°C, making it suitable for a wide range of applications. It can also measure frost point temperatures down to -110°C.
- Fast response time: Provides fast response times, with a typical response time of 5 minutes for a 90% step change in humidity. This allows for real-time monitoring and control of humidity levels in various applications.
- User-friendly interface: Features a user-friendly interface with a large, easy-to-read display and intuitive menus. The instrument can be operated with just a few buttons, and it provides on-screen prompts to guide the user through the measurement process.
- Low maintenance: Designed for easy maintenance, with a simple mirror cleaning process that can be done quickly and easily. The instrument also features a self-diagnostic function that alerts the user to any issues that may require attention.
- Robust design: Built to withstand harsh environments and can be used in a wide range of applications. It features a rugged, portable design with a protective carrying case, making it easy to transport between locations.
- Traceability: Is traceable to national standards, providing assurance of the accuracy and reliability of the measurements. The instrument also features a built-in data logging function, allowing for easy record-keeping and documentation of the measurements.
- Versatility: Is a versatile instrument that can measure various humidity-related parameters, including dew point, frost point, and absolute humidity. It can also be configured for different measurement units, such as Celsius, Fahrenheit, and parts per million by volume.
- Connectivity: Can be connected to a computer or network via a USB or Ethernet port, allowing for remote monitoring and control of the instrument. The instrument also supports various communication protocols, such as Modbus and SCPI, for easy integration with other systems.
INDUSTRIES
- Oil and gas
- Chemical manufacturing
- Semiconductor manufacturing
- Environmental monitoring
- Calibration laboratories
Measuring Head SH2 Part No. 105001
The SH2 is a flow-through dew point measuring head with a two-stage Peltier element for mirror temperature control. It includes a variable speed fan that maintains a consistent airflow across the mirror. Alternatively, with the fan removed, the SH2 head can also connect to applications using tubing and standard 6 mm or ¼” fittings. It is also supplied with a calibrated temperature probe with 0.5 m and 3 m cables for connection to either the measuring head or the 473 back panel.
OUR Dew Point Mirror HygrometerS
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