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473 Dew Point Mirror

Get highly precise, stable and repeatable results. Featuring reliable chilled mirrors chosen by national standards and accredited laboratories worldwide, RH Systems’ 473 Dew Point Mirror transfers reference standard performance into applications such as climatic chamber validation, relative humidity calibrators and a wide range of industrial processes. With an intuitive user interface, ForceFrost™ function, and automatic mirror check function, the 473 is easy to use with minimal maintenance.
Remote Measuring Head Advantages
The measuring head is separate from the control/display unit, allowing the user to directly measure within a chamber and eliminating the need to externally heat the gas path.
Easy, Verifiable Calibration
Easily check the 473 system’s stability at any time using the built-in Ice-Test function. This automated test procedure confirms that ice on the mirror melts at 0 °C to verify the accuracy and stability of the mirror temperature measurement system.
Safely Transportable System
The 473 comes with a robust IP65 case to ensure that the instrument can be transported safely to your site for validation projects or shipped for calibration without risk of damage.
High Performance Chilled Mirror Hygrometer

Eliminate Uncertainty Between Dew Or Frost Point

Our proprietary ForceFrost™ function over-cools the mirror below a user defined temperature to force the condensed layer to the solid phase, should dew and frost exist concurrently. 
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Specifications

Operation

Documents

Warranty

Accessories

Specifications

Specifications

The 473 is available in three models, to ensure we meet your unique needs. The specifications table, below, outlines each: 473-RP2, 473-SH2 and 473-SHX.

Model 473-RP2 473-SH2 473-SHX
Measuring range:
Dew/Frost point -20
+70ºC		 -20
+70ºC		 -30
+99ºC
% RH @ 20C 5–100%
ppmv, minimum 1000
Tempreature (head mount PRT) -20
+80ºC		 -20
+125ºC
Temperature (cable mount PRT) -50
+100ºC		 -50
+150ºC
Accuracy:
Dew/Frost Point ± 0.15°C ± 0.1°C
Temperature ± 0.07°C
Reproducibility:
Dew/Frost Point ± 0.07°C ± 0.05°C
Temperature ± 0.05°C ± 0.05°C
External Temperature Probe: Ø3 x 30 mm PRT,
0.5 m cable		 Ø2 x 100 mm PRT,
0.5 m and 3 m cable		 Ø3 x 30 mm PRT,
1 m cable
Display: 5.7″ LCD color touch screen
Digital I/O: RS-232
Gas connections: None 6mm or 1/4″ Swagelok
Mirror temperature sensors: PRT-100
Operation temperature:
Instrument 0 … 40°C
Measuring head -50 … +80°C -40 … +125°C
Storage temperature: -20 … +50°C
Instrument: 90% RH max., non condensing
Measuring Head: 99% RH max., non condensing
Voltage: 100 … 120 VAC, 50/60 Hz / 200 … 240 VAC, 50/60 Hz
(auto switching)
Optional Features
Internal Barometric Pressure Sensor 0.1% or 0.01% accuracy, 700 … 1200 mbar
Analog Outputs 2 user programmable ±10V and 4 … 20mA
Weight & Dimensions Instrument only In Transport Case
Width, inch
(mm):		 12.20
(310)		 20.08
(510)
Height, inch
(mm):		 6.10
(155)		 8.66
(220)
Depth, inch
(mm):		 10.43
(265)		 17.72
(450)
Weight, lb
(kg):		 11
(5)		 26
(12)

Operation

Operation

Ready to get started? Download the manual here and go to page 5, titled “Quick Start.” There, you’ll find out how to unpack the 473, and getting it started with the right power source. We recommend you read through the entire manual to fully understand all of the 473’s ins and outs, but the Quick Start section will help you get started, well, quickly, in the meantime!

Documents

Documents

Learn more about our 473 Dew Point Mirror:

Warranty

Warranty

RH Systems (RHS) warrants the products it manufactures or distributes to be free of defects in material and workmanship under normal use and service when operated within the specified design limitations for a period of 12 months from date of initial shipment. Under this Warranty, RHS will, at its discretion, repair or replace any component that upon examination by RHS or its duly authorized representatives proves to be defective during the warranty period provided the system is returned to the factory for inspection and repair shipping prepaid. Improper or unauthorized maintenance, storage, repair, or alteration of any kind by personnel other than RHS or its duly authorized representatives may void all warranties. Warranty may also be voided for misuse, neglect, accident, corrosion, and improper installation. This Warranty is exclusive and in lieu of any and all other warranties of merchantability, fitness for a particular purpose, or any other warranty, expressed or implied, and all other liabilities and obligations on the part of RHS. RHS will not be liable for any other claims or damages, either direct, indirect, or consequential arising out of the use of its products.

Accessories

Accessories

The Advantage Of A Remote Measuring Head

The measuring head is separate from the control/display unit, allowing the user to directly measure within a chamber and eliminating the need to externally heat the gas path.

Eliminate Uncertainty Between Dew Or Frost Point

Our proprietary ForceFrost™ function over-cools the mirror below a user defined temperature to force the condensed layer to the solid phase, should dew and frost exist concurrently.

Easy, Verifiable Calibration

Easily check the 473 system’s stability at any time using the built-in Ice-Test function. This automated test procedure confirms that ice on the mirror melts at 0 °C to verify the accuracy and stability of the mirror temperature measurement system.

Safely Transportable System

The 473 comes with a robust IP65 case to ensure that the instrument can be transported safely to your site for validation projects or shipped for calibration without risk of damage.

Let’s Chat

Let's Chat
Joshua Stine
Chief Relationship Engineer

At RH Systems, we’re constantly pushing ourselves towards advancing our products and services for a wide range of clients, setting a new standard for accuracy and paving the way for future breakthroughs.

Customer satisfaction is the foundation of our reputation, so we never take a one-size-fits-all approach. We work with you to understand your needs and provide customized solutions that work seamlessly right from the jump.

Ready to chat with our Sales Team? Send an email to sales@rhs.com and we’ll get right back to you.

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Fill out the form below and we’ll be in touch soon.

    Frequently Asked Questions

    What are your hours?

    9am – 5pm Arizona Time
    Where are you located?

    1225 West Houston Ave, Gilbert, AZ 85233
    Do you offer virtual or in-person training?
    Yes, please contact sales@rhs.com for a quote.
    What products do you service?
    We service the entire RH Systems line of products, you may find our products here.
    Do you service products not manufactured by RH Systems?
    Yes, please contact sales@rhs.com for more information.
    Are you accredited?

    As a NVLAP accredited laboratory, RH Systems is reassessed to ensure that our quality and practices maintain such standards (NVLAP Laboratory Code 600161-0). The National Institute of Standards and Technology (NIST) administers the National Voluntary Laboratory Accreditation Program (NVLAP), which accredits public and private laboratories based on evaluation of their technical qualifications and competence to carry out specific calibrations or tests. 


    NVLAP provides an unbiased third-party evaluation and recognition of performance. Accreditation signifies that a laboratory has demonstrated compliance with NVLAP management and technical requirements, including quality systems, personnel, accommodation and environment, test and calibration methods, equipment, measurement tractability, sampling, handling of test and calibration items, and test and calibration reports. Learn more here.

    Where can I find the range for each unit?
    On our Product Page, click the specific unit. Then, click on download brochure.

    Brand Warranty

    At RH Systems, we proudly stand behind the quality of our products with a 12-month warranty from the date of shipment. If any part proves defective in material or workmanship under normal use, we’ll repair or replace it—just send it to us prepaid for inspection. To keep your warranty intact, all maintenance or repairs should be handled by RH Systems or an authorized representative. While the warranty doesn’t cover misuse, accidents, unauthorized modifications, or corrosion, you can count on us for expert support and reliable service every step of the way.
    See Our Warranty

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