Instruction/ maintenance manual of the product 48N 3M
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QUEST emp o 48N User Manual 3M P ersomal Safety Division 3M ™ QUEST emp° ™ Heat Stress Monitors F rom the Robus t C ons tr uc tion ©3 M 2 013 All R igh ts R es er ve d Market Leader F rom the.
i Contents Contents Introduction .......................................................................................................................................................... 1 QUESTempº 48N Model ........................................
Contents ii Data/Communications ....................................................................................................................................... 17 Parallel .......................................................................
Contents iii Fig ur e 1- 12 : Se le ct in g te mp er at ur e s et ti ng ………………………………… ……………………………… ……………………. 9 Figure 1-13: Selecting log rate with event log ……………………………………………………………………………….
1 Introduction Up and Running overvie w In troduction The QUESTemp º 4 8N offers traditional heat stress monitoring without the aggravation of maintaining a wet bulb.
2 Getting Started Up and Running overvie w Getting Started Up and Running ove rview Placing the QUE STemp º 48N on the job site The QU ES Te mp º 48N s h oul d b e p la ce d at a he ig ht of 3 .5 feet (1 .1m ) f or s ta nd ing ind i vi du al s or 2 f ee t ( .
3 Getting Started Keypad Operation Keypad Operation The unit operates using a keypad with 4 keys. The I/O Enter key responds when the key is released while all other keys respond when the key is pressed. Keys Explanation I/O Enter key The unit turns on with a single key press.
Getting Started Turning on, logging/ capture an e vent, and tur ning off 4 Turning on, logging/ capture an e vent, and turning off To quickly get you started with the QUESTemp º 4 8N , the following section explains turning on the instrument, data logging/event logging, and stopping.
Getting Started Tu rning on, logging/ capture an event, and turning off 5 4. The main menu (navigational screen) will appear after the start-up screens. Press I/O Enter key. (This will open to the measurement screens.) Figure 1-6: Main menu of the QT4 8N 5.
Sensors Globe Therm ometer 6 Sensors Globe Thermometer The globe thermometer (l eft position ) gives an indication of the radiant heat exposure on an individual d ue to either direct sunlight or hot objects in the environment. This is accomplished by placing a temperature sensor inside a blackened copper sphere and measuring the te mperature rise.
Measurements WetBulb Globe Tem perature (W BGT) 7 Measurements The QU ES Te mp 48N d at a l ogg i ng , wi th a n e ve nt l og gi ng m od e , h ea t s tre s s mon it or d i re ct ly s e nse s t hre e p ar am et er s: d ry b ul b te mp e rat ur e (D B) , gl ob e te mp er at ure (G) , a nd r el at iv e h um id it y ( RH) .
Operating QUESTempº 48N View 8 Operating QUESTemp º 4 8N From a powered on mode, the main menu will appear (after the start-up screens are displayed.) Use the Up Arrow and Down Arrow keys to move the marker in the display in front of the desired mode.
Operating QUESTempº 48N Setup 9 Selecting Setup parameters 1. From the main menu, select Setup by pressing the I/O Enter key. Using the Up/Down Arrow keys, select the settings in steps 2-6. Fig u re 1- 1 1: Se l ect in g t emp e ra tu r e set ti ng an d set up 2.
Operating QUESTempº 48N Print 10 Print Allows printing to a parallel or serial printer or to a compute r. The Q UESTemp º 4 8N wi ll re cognize the cable plugged in and configure itself for serial or parallel. If no cable is plugged in, it will de fault to serial.
Displayed Items Run 11 Displayed Items For the QUESTemp 48N , the number in the upper right corner ind icates the saved session or the saved event log. “ 1 ” indicates the sensor bar placed on (or attached to) the top of the instrument. Sensors 2 and 3 are labeled on the side of the unit as “Sensor 2”, and “Sensor 3” .
Displayed Items Stay Time/Index 12 Screen 5: BAT (Battery voltage) MEM (Logging memory available in days) Figure 1-19: Battery & memory screen Screen 6: Index (Navy PHEL stay times) Figure 1- 20: .
Data Logging Stay Time/Index 13 If the Navy PHELs are selected, the recommended working hours are shown based on a maximum of eig ht ho urs. Three screens are used to display the PHELs two at time. NOTE: “ 8:01 ” following one of the PHELs indicates greater than eight hours.
Electronic sensor check Performing an electronic sensor check 14 Electronic sensor check A ve ri fi cat i on m od ul e , Que s t m ode l 0 53- 92 3, m ay b e u se d to c he ck t he o pe ra ti on o f t he QU E ST e mp ’s we t bu lb , dr y bu lb , a nd g lo be .
Se nsor Alignment RH Sensor Alignm ent 15 Sensor Alignment For h ig h ly a cc ur at e me as ur em e nt r ea di ng s, y ou s ho ul d al ig n y o ur QU ES Te mp º 48N p ri or to da ta l og g ing or e ve nt lo gg i ng/ r e cor di ng .
Se nsor Alignment RH Sensor Alignm ent 16 6. Place the Salt container , with the salt alignment cap re moved, over the RH sensor (middle sensor). Allo w level to stabilize for at least 15 minu tes. (Refer to Figure 1-25.) About sensor alig nment: if readings are wi thin +/- 0.
Printi ng Data/Comm unications 17 Printing Printing options incl ude to a RS -232 port or to a parall el printer. Serial transmissi on requires Quest cable #54-715. Parall el transmission requires Q uest cable #56-875. With the applicable cable plugged in, select PRINT from the menu and p ress the I/O Enter key to enter the PRINT mode.
Printi ng Parallel 18 Parallel Data can be sent directly to parallel printers that accept direct ASCII test input without special drivers. Make sure the printer is powered on and is online , ready to accept data, prior to printing.
Pow ering 9-Volt Alkaline Battery Replacem ent 19 Powering T he QU ES Te mp º 48N us es a 9- vol t a lk al in e ba tt er y. A d oo r o n th e ba ck o f t he ins t rum e nt a ll ow s th e us er a c ces s t o the 9-v ol t b at te ry .
Appendix A: Specific ations Approved 9-Volt Batteries 20 Appendix A: Specifications Measurements Globe Temperature, Dry Bulb Temperature , Wet Bulb Temperature, % Relative Humidity , and WBGT Index Temperatures given in Celsius or Fahrenheit Index (displayed stay time with selected index): ACGIH TLV, U.
Appendix A: Specifications Approved 9-Volt Batteries 21 Size Height 9.2in (23.5cm); Width 7.2in (18.3mm); Dep th 3.0in (7.5m m) Dimensions include mounted sensor assembly Weight 2.6 lbs. (1.2 kg) with mounted sensor assembly Remote Sens or Bar Using a cable, the top sensor bar can be setup for remote measurements, up to 200 feet (61m).
Appendix A: Specific ations QUESTemp 48N Block Model 22 QUESTemp ° 48N B lock Mode l Sensors 1, 2, & 3 Multiplexer Gain Keypad A/D Microprocessor LCD RS232 Printer Power Controller Battery Da ta .
Appendix B ACGIH 23 Appendix B: Heat Exposure Tables ACGIH Screening Criteria for Heat Stress Exposure. WBGT values in C. NOTE: according to the ACGIH’s guidelines, the temperature values represe nt a work and rest process which is explained in the standards.
Appendix B ACGIH Clothing C orrections 24 ACGIH Clothing Corrections The following clothing corrections are in degrees Celsius. When a clothing correction is entered into the setup portion of the QUESTemp 48N , the value is added to the WBGT only for looking up the stay times.
Appendix B United State s Navy 25 WBGT(F) I II III IV V VI 92.0 4:50 4:10 3:30 2:55 2:15 1:30 93.0 4:25 3:50 3:15 2:40 2:00 1:25 94.0 4:05 3:35 3:00 2:25 1:50 1:15 95.0 3:45 3:15 2:45 2:15 1:45 1:10 96.0 3:25 3:00 2:30 2:05 1:35 1:05 97.0 3:10 2:45 2:20 1:55 1:25 1:00 98.
Appendix B Flag Condition s for U.S. Nav y/Marine Corp. Ashor e 26 Flag Conditions for U.S. Navy/Marine Corp. Ashore The following chart de tails the hea t stress monitoring Flag Condition s fo r U.S. Navy/Marine Corp . Ashore in Degrees Fahren heit and Celsius.
Appendix C: Accesso ries (sold separately) 27 Appendix C : Accessories (sold separately) Rep l ace me nt Re la ti ve h um id i ty s en so r (o ne i nc lu de d) 57 -3 17 Se nso r ar ra y w it h 2-i n c.
Appendix D: So ftware 28 Appendix D: Software The QUESTemp 4 8N has the flexibility to be set up and controlled through computer software. The programmable start and s top time feature is only accessible through the computer. The instrume nt also has the capability of sending live data while measuring.
Appendix D: So ftware Data Finder and qu ick reports 29 4. Click on the button in the Instrument Communications page while Data finder checkbox is checked (see 3 below).
Appendix D: So ftware Data Finder and qu ick reports 30 Quick Report: select the button to generate a report with basic information and a summary table of your d ownloaded data. Figure 1-36: Quick Report Analyze: allows you to add charts/gra phs and customize how they will appear in a report.
31 Appendix D: Q uest Service Contacting Quest Techno logies Customer service Contacting 3M Ins trumentation Should your 3M equipment need to be returned for repair or for recalibration, please contact the service department at the following number or acc ess the online form via the website.
Personal Safety Division 3M Detection Solutions 1060 Corporate Center Drive Oconomowoc, WI 53066 ISO 9001 Registered Company ISO 17025 Accredited Calibration Lab Customer Service: 262-567-9157 T oll Free: 800-245-0779 www .3m.com/detection 3M is a t rad emar k of 3 M Co mpany used u nder lic ense in C an ada.
An important point after buying a device 3M 48N (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought 3M 48N yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data 3M 48N - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3M 48N you will learn all the available features of the product, as well as information on its operation. The information that you get 3M 48N will certainly help you make a decision on the purchase.
If you already are a holder of 3M 48N, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime 3M 48N.
However, one of the most important roles played by the user manual is to help in solving problems with 3M 48N. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3M 48N along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
