3M 48N user manual RH Sensor Alignment

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Sensor alignment

Sensor Alignment

RH Sensor Alignment

Sensor Alignment

For highly accurate measurement readings, you should align your QUESTempº 48N prior to data logging or event logging/recording. For the RH sensor, it is recommended to align with a High concentration level using the 75% sensor salt, NaCl (sodium chloride), or a Low concentration level using the, the 33% sensor salt, MgCl (magnesium chloride). (To order sensor alignment salts, refer to an online vendor such as, colepalmer.com.)

RH Sensor Alignment

1.To open, navigate to the main menu and select View by pressing I/O Enter key (see A). A measurement screen will appear (see B).

(A)

 

(B)

 

 

 

Figure 1-24: Main menu with view selected (A) & measurement screen (B)

2.Press and hold I/O Enter key and then press Down Arrow key from the View menu. The Alignment screen will appear.

(RH Sensor) Alignment menu

“High” is selected when the arrow appears in front of the text.

Note: WBGT is not used in sensor alignment

Figure 1-25: Alignment screen

3.Press Up/Down Arrow key to select either High or Low. Then press I/O Enter key.

4.Remove (or slide) the Sunshield (white globe) from the RH sensor and place it to the side. (See Figure 1-26).

5.Place a latex finger cot (user supplied) over the humidity sensor in order for the sensor to stabilize quicker about 15 minutes (or up to 60 minutes without). Note: latex finger cots can be found at various hardware stores or online such as colepalmer.com.

Sunshield: Slide off RH sensor to remove.

Place unrolled finger cot, with a small hole cut in the top, so it is completely stretched over the humidity sensor.

Figure 1-26: Sunshield & placement of finger cot prior to RH alignment

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Contents Market Leader Contents List of Figures Iii QUESTempº 48N Model IntroductionUp and Running overview Getting StartedPlacing the QUESTempº 48N on the job site Keys Explanation Keypad OperationIndex start-up screen Turning on, logging/capture an event, and turning off∙ Numeric counter Indicator arrowDry Bulb Thermometer SensorsGlobe Thermometer Waterless Wetbulb & Relative Humidity SensorStay Times/Rest Times Indicies WetBulb Globe Temperature WbgtView SetupSettings Explanation Operating QUESTempº 48N11 Selecting temperature setting and setup  Selecting Setup parametersPrint ResetRun Displayed Items Following measurements can be accessed on the displayStay Time/Index 19 Battery & memory screen Screen 6 Index22 Navy PHELs screen Data LoggingPerforming an electronic sensor check Electronic sensor checkRH Sensor Alignment Sensor Alignment27 RH alignment with Low % example Low RH Alignment screen Adjust % to 33% using up/down arrowData/Communications Printing30 Sample printouts ParallelDuracell MN1604 PoweringVolt Alkaline Battery Replacement Approved 9-Volt BatteriesMeasurements Appendix a SpecificationsWeight LCD QUESTemp 48N Block ModelHeavy Very Heavy Action Limit Work and recovery LightAppendix B Heat Exposure Tables Heavy Very Heavy TLVUnited States Navy Acgih Clothing CorrectionsPhel Curves Total Exposure Time in Hours Minutes United States Navy Flag Degrees F Flag Conditions for U.S. Navy/Marine Corp. AshoreFlag Degrees C QT3X-BC Appendix C Accessories sold separatelyPort Appendix D SoftwareDMS quick overview Communicating and Downloading in DMS34 Communicating with the QT⁰ 48N and DMS Data Finder and quick reports36 Quick Report Quick Report selectContacting 3M Instrumentation Customer serviceWarranty CalibrationAbout Us
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