473-SHX dEW pOINT cHILLED mIRROR hYGROMETER
Dew Point Chilled Mirror Analyzer for High Temperature Applications
High Performance 473-SHX Dew Point Chilled Mirror Hygrometer
Dew Point Chilled Mirror Analyzer for High Temperature Applications
The MBW CALIBRATION™ MODEL 473-SHX™ Dew Point Chilled Mirror Analyzer’s measuring head is an evolution of the tried and tested SH measuring head. It is able to operate in test conditions up to 125°C thanks to the use of optical components, electronics and materials that are able to withstand high temperatures. Our development team tested a range of components over the SHX working range to achieve the best possible performance.
The MODEL 473-SHX Dew Point Chilled Mirror Analyzer is designed to provide accurate and reliable measurements of dew point temperature in challenging environments.
Modular Design
The key components of the SHX such as the optical module and fan assembly can be easily replaced by the user without the need for system re-calibration.
Sample Flow Control at High Temperature
Precise dew point measurement depends on controlled and stable gas flow over the dew point mirror and known pressure. Flow rate is especially critical at high temperature and humidity conditions. The SHX measuring head incorporates a sample fan with user controllable speed that maintains a stable flow within the recommended range of 0.3…1 liter per minute at atmospheric pressure. A high temperature motor is combined with a micro engineered aluminum impeller/cowl combination to maintain reliable and stable sample flow. Flow rate can be changed through the 473 front panel user interface or by serial commands.
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
FEATURES
- Precise and stable chilled mirror dew point mirror technology
- High temperature optical components
- High temperature sample fan
- Cable mounted dew point measuring head
- Barometric pressure measurement option
- Intuitive color touch screen user interface
- Integral calibration stability verification
Key Specifications
Measuring Ranges
Frost/Dew Point -30…+99 °C *
Relative humidity 5…99 %rh **
Temperature -50…+125 °C
Accuracy
Frost/Dew point ≤ ± 0.1 °C
Temperature ≤ ± 0.07 °C
Reproducibility
Frost/Dew point ≤ ± 0.05 °C
Temperature ≤ ± 0.03 °C
* To measure -30 °C frost point, the SHX measuring head needs to be in a temperature environment below 10 °C.
To measure dew points up to 99 °C the SHX measuring head must be at least 3 °C above the dew point temperature.
** Please note the operating conditions: The measuring head as well as the connectors must be operated under non-condensing conditions.




Applications
- Validation of climatic chambers
- Climatic chamber calibration
- HALT/HASS test chambers
- Fuel cell test
- Dryer performance
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
BENEFITS
- High accuracy: Uses a chilled mirror sensor to measure dew point temperature, which provides highly accurate and repeatable measurements over a wide range of temperatures and pressures. The instrument can measure dew point temperatures as low as -95°C (-139°F), with an accuracy of ±0.1°C (±0.18°F).
- Fast response time: Has a fast response time, allowing it to quickly detect changes in dew point temperature and respond accordingly. This is especially important in applications where rapid changes in humidity levels can occur, such as in industrial processes and environmental monitoring.
- Robust design: Built to withstand harsh environments and extreme temperatures, with a rugged aluminum housing and a heated mirror assembly that prevents frost and condensation from forming on the mirror surface. This makes it ideal for use in outdoor or industrial applications where other types of instruments may not be able to function reliably.
- Easy to use: Features a user-friendly interface with a large, easy-to-read display and simple menu navigation. It also has a variety of output options, including analog and digital signals, making it easy to integrate into existing systems or data loggers.
- Versatility: can be used in a wide range of applications and industries, including environmental monitoring, industrial processes, HVAC systems, and more. It is also available in a variety of configurations to suit specific application requirements, such as the addition of a built-in sample conditioner or a range of different power options.
INDUSTRIES
- Environmental monitoring
- Semiconductor manufacturing
- Power generation:
- HVAC systems
- Industrial processes
- Aerospace and aviation
Measuring Head SHX Part No. 141349
The 473 SHX MODEL measuring head is the very latest addition to our hygrometer range. It is based on some of the very latest high-performance technologies to achieve new levels of specifications and performance.
As a stable flow through a dew point mirror measuring head is essential to achieve stable measurement, we have focused much of the development on making sure that the 473 SHX MODEL flow fan functions over the whole working range. It uses a high temperature motor and custom design fan together with digital control from the 473 MODEL base instrument. In the event of need, the flow module can be easily replaced without specialist knowledge.
In the event of damage to the 473 SHX MODEL measuring head, it is possible to order a replacement that can be fitted by your local representative or the user.
