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973 Dew Point Mirror
MBW designs and sells custom humidity, temperature and pressure solutions, including humidity generators and chilled hygrometers. MBW was founded in 1962 and is a privately-held company headquartered in Wettingen, Switzerland.
Our product line is jointly developed with our US partner, RH Systems, and manufactured in Switzerland and in the United States. We provide the design expertise in chilled mirror technology and high precision analogue electronics.
Our products are used in national metrology institutes and commercial laboratories around the world, and we are proud of the elite companies who have chosen our products.
We provide a variety of products for humidity measurement, humidity generation, and temperature measurement to fit your needs.
Overview
The Model 973 Dew Point Mirror is a portable instrument equipped with an integral measuring head for both spot and continuous measurement of Dew/Frost point and temperature in air and gas mixtures. Based on the chilled mirror principle, the 973 ensures direct and accurate humidity measurement.
Color Touch Screen
The system uses a full color active matrix liquid crystal display with an integral touch panel. It has a high contrast ratio and a wide viewing angle for easy readability. Data is displayed in large easy to read fonts. Using the on screen buttons and menus, you can easily configure each line of the display for a variety of humidity, temperature, and pressure parameters that may be viewed in either SI or non-SI units. A simple touch of a button toggles any parameter between numeric or graph format.
Dew/Frost Determination
User configurable via the full color active matrix LCD touch screen, the 973 may be configured for measurement of dew point, frost point, relative humidity, and other parameters. The ForceFrostâ„¢ feature ensures reliable differentiation between super-cooled dew and frost.
Verifiable Calibration
Easily check the calibration at any time using the built-in Ice Test function, providing instant proof of system accuracy and integrity.
Connect and Go
The system is supplied ready for immediate use complete with built-in pump, flow meter, pressure sensor, and external temperature probe. PC connectivity for remote data collection is easy with the simple yet robust protocol of the bi-directional RS-232 port.
973 Specifications
We reserve the right to change design or technical data without notice.
Measuring range
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Frost/Dew Point
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-60…+20°C
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% RH
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5…100%
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Temperature
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-50…+150°C
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Accuracy:
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Frost/Dew point
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±0.1°C
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Temperature
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±0.1°C
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Reproducibility:
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Frost/Dew Point
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± 0.05°C
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Temperature
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± 0.05°C
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Thermoelectric Mirror cooling:
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3-stage, 80°C depression
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Cooling:
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Air
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Display:
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Active Matrix Color Graphic LCD
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Digital I/O:
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RS-232
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Gas couplings:
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¼" Swagelok
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Mirror temperature sensor:
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PRT-100
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Sample gas flow rate:
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0.2…1.0 l/min
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Sample gas circuit:
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PTFE (Teflon)
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Operation temperature:
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-10…+40°C
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Storage temperature:
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-10…+40°C
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Ambient humidity:
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Instrument 90% RH max., non condensing
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Voltage:
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100…240 VAC, 50/60 Hz
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Power consumption:
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200 Watt
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Width:
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440 mm (600 mm with transport case)
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Height:
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155 mm (310 mm with transport case
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Depth:
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410 mm (450 mm with transport case)
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Weight:
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12 kg (22 kg with transport case
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