Rotronic MBW 473 User Manual Page 1

Operation and Maintenance Manual V2.0 Dew Point Mirror 473

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MBW473_MANUAL_E_V2.0 7 3 Get to know your 473 3.1 Front Panel The front panel of the 473 is equipped with a full color touch screen and a keypad f

8 MBW473_MANUAL_E_V2.0 Data Lines The first three lines of the display show a numeric or graphic representation of the measured data. We will refer

MBW473_MANUAL_E_V2.0 9 Mirror Residue The Mirror Residue Indicator graphically shows the amount of mirror contamination that was detected during t

10 MBW473_MANUAL_E_V2.0 3.2 Back Panel Power Switch The main power switch is on the back panel above the power plug. The power supply has a built

MBW473_MANUAL_E_V2.0 11 Optional Analog Outputs The 473 can be ordered with two optional analog outputs which are independently configurable. For

12 MBW473_MANUAL_E_V2.0 3.3 Measuring Heads The SH2 Measuring Head 1. Gas Inlet 2. External Temperature Connection 3. 19-pin Measuring Head Ca

MBW473_MANUAL_E_V2.0 13 The RP2 Measuring Head 1. Temperature Probe Ø3 x 30 mm 2. Measuring Head Assembly 3. 19-pin Measuring Head Cable (2 m

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MBW473_MANUAL_E_V2.0 15 4 System Configuration Many aspects of the 473 can be configured depending on your measuring needs and preferences. You

i MBW473_MANUAL_E_V2.0 Warranty MBW Calibration Ltd. (MBW) guarantees that its products are manufactured to the highest quality of material and wo

16 MBW473_MANUAL_E_V2.0 4.2 Selection of indicated Parameters In the Parameter menu you can choose which parameters you would like to have displaye

MBW473_MANUAL_E_V2.0 17 Follow the steps below to choose the parameters you wish to have displayed on the four data lines: 1. Select the Para

18 MBW473_MANUAL_E_V2.0 4.4 Graph Scaling Each graph can have its own x and y-axis scaling and range settings. There are three different scaling mo

MBW473_MANUAL_E_V2.0 19 Fixed Range The Fixed Range mode allows you to select a fixed range for the graph’s y-axis. It automatically cen-ters on t

20 MBW473_MANUAL_E_V2.0 4.5 Control Setup Using the Control Setup menu enables you to control the manner in which the 473 operates. Dew / Frost Co

MBW473_MANUAL_E_V2.0 21 Why it is Important to Distinguish Between Dew and Frost For mirror temperatures above 0 °C, water vapor always condenses

22 MBW473_MANUAL_E_V2.0 Mirror Cleaning Activating the Mirror Cleaning function with the respective key at the bottom of the screen will heat the m

MBW473_MANUAL_E_V2.0 23 Automatic Mirror Check To view or edit the Mirror Check parameters, press the Mirror Check key of the Control Setup menu.

24 MBW473_MANUAL_E_V2.0 4.6 Selection of Units You can display system data in any of a wide variety of units. When you change units, your selection

MBW473_MANUAL_E_V2.0 25 4.7 Analog Output Connections The 473 can be ordered with two optional analog outputs which are independently configurable

MBW473_MANUAL_E_V2.0 ii Table of Contents WARRANTY ...

26 MBW473_MANUAL_E_V2.0 Configuration of Optional Analog Outputs For each of the analog outputs, you may select which parameter to track and how to

MBW473_MANUAL_E_V2.0 27 Scaling the Output Signal Use Min Value and Max Value to set the range of the Parameter, and use Min Voltage and Max Volt

28 MBW473_MANUAL_E_V2.0 4.8 Selection of Color The foreground and/or background color of any data line can be changed in the Fore Color and Back Co

MBW473_MANUAL_E_V2.0 29 5 Set Up and Operation 5.1 Measurement Set Up Back Panel Connections The following picture shows the back panel of a fully

30 MBW473_MANUAL_E_V2.0 5.2 External Temperature Set Fixed External Temperature If you do not use an external temperature sen-sor, you have the

MBW473_MANUAL_E_V2.0 31 Use your own External Temperature Sensor The External Temperature plug on the back panel is used for the connection of an

32 MBW473_MANUAL_E_V2.0 5.3 Application Integration The 473 is suitable for many applications over the humidity and temperature ranges detailed in

MBW473_MANUAL_E_V2.0 33 At equilibrium, the water vapor pressure is assumed to be ho-mogenous, but the user should determine this by experime

34 MBW473_MANUAL_E_V2.0 The user must therefore determine this effect experimentally for the conditions used. In the example installation shown abo

MBW473_MANUAL_E_V2.0 35 6 Remote Communication The 473 is equipped with a bidirectional RS-232 communications interface which allows connection to

iii MBW473_MANUAL_E_V2.0 6 REMOTE COMMUNICATION ... 35 6.1 Hardware Connection

36 MBW473_MANUAL_E_V2.0 6.2 Communication Settings To communicate with the 473, set your computer to the following configuration: Baud Rate: 9600 D

MBW473_MANUAL_E_V2.0 37 Leading and Trailing Spaces The 473 ignores leading and trailing spaces. It also ignores spaces before and after equal sig

38 MBW473_MANUAL_E_V2.0 6.4 Command Reference Below you will find a list with all available commands grouped by function. All commands are consid-e

MBW473_MANUAL_E_V2.0 39 7 Maintenance 7.1 Calibrate the Touch Screen Before using the instrument for the first time, or when the instrument is use

40 MBW473_MANUAL_E_V2.0 7.2 Ice Test The measuring accuracy can be checked with a simple, built-in test. The test may be performed at any time, and

MBW473_MANUAL_E_V2.0 41 When you observe the phase transition on the mirror, press the Ok button. The mirror temperature is measured at th

42 MBW473_MANUAL_E_V2.0 7.3 Mirror Cleaning At the heart of the 473 is the measuring head assembly. It is highly sensitive and accurate, yet easily

MBW473_MANUAL_E_V2.0 43 RP2 Measuring Head To access the mirror and the opto-electronic components, remove the optical assembly from the mea

44 MBW473_MANUAL_E_V2.0 7.5 System Information When you press the System Info button in the Analog Outputs Menu a window appears whic

MBW473_MANUAL_E_V2.0 45 8 Specifications Specifications 473-RP2 473-SH2 Measuring Ranges Frost/Dew Point Relative humidity Temperature (head mo

MBW473_MANUAL_E_V2.0 1 1 Introduction Precise and Stable Humidity Measurement With the 473 Dew Point Mirror you are able to perform precise dew po

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MBW473_MANUAL_E_V2.0 47 9 Drawings Side View

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MBW473_MANUAL_E_V2.0 49 Top View

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MBW473_MANUAL_E_V2.0 3 2 Quick Start This section guides you through the set-up and the first steps using your 473. It is a summary and should be

4 MBW473_MANUAL_E_V2.0 2.2 Starting your 473 The 473 needs a source of AC power. It will work over a wide power range and will most likely operate

MBW473_MANUAL_E_V2.0 5 2.4 Dew Point Measurement When you switch on the 473, all readings on the display may initially be blank. If your instrumen