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HEAT INDEX WBGT METER
Model : WBGT-208
Your purchase of this
HEAT INDEX WBGT
METER. marks a
step forward for you
into the field of
precision measurement.
Although this Meter is a
complex and delicate
instrument, its durable
structure will allow
many years of use if
proper operating
techniques are
developed. Please read
the following
instructions carefully
and always keep this
manual within easy
reach.
OPERATION MANUAL
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Summary of Contents for Lutron Electronics WBGT-208
- Page 1 HEAT INDEX WBGT METER Model : WBGT-208 Your purchase of this HEAT INDEX WBGT METER. marks a step forward for you into the field of precision measurement. Although this Meter is a complex and delicate instrument, its durable...
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Page 2: Table Of Contents
TABLE OF CONTENTS 1. FEATURES......................2. SPECIFICATIONS....................3. FRONT PANEL DESCRIPTION................3-1 Display......................3-2 Power Button ( ESC, Backlight Button )............3-3 Hold Button ( Next Button )................3-4 REC Button ( Enter Button )................3-5 SET Button ( ▲ Button ).................. 3-6 ▼... -
Page 3: Features
1. FEATURES * Introduction : WBGT ( wet-bulb globe temperature ) was developed as a monitoring basis at US military training camps and became widespread for the use in workplaces and sports situation It is suggested in the international standard ISO 7243, OSHA ( US Occupation Safety ), Japan Society for Occupational Health and the SMA ( Sports Medicine Australia ) in establishing the permissible heat exposure limits in health , sports or... -
Page 4: Specifications
2. SPECIFICATIONS 2-1 General Specifications Circuit Custom one-chip of microprocessor LSI circuit. Display LCD size : 35 mm x 30 mm LCD with green backlight ( ON/OFF ). Measurement * Wet bulb globe temperature ( WBGT ) @ Indoor/Outdoor * Black globe temperature ( TG ) * Air temperature ( TA ) * Wet bulb temperature ( WB ) * Humidity... - Page 5 Data Output RS 232/USB PC computer interface. * Connect the optional RS232 cable UPCB-02 will get the RS232 plug. * Connect the optional USB cable USB-01 will get the USB plug. 0 to 50 ℃. Operating Temperature Operating Less than 85% R.H. Humidity Power Supply * Alkaline or heavy duty DC 1.5 V battery...
- Page 6 ℃ 2-2 Electrical Specifications (23±5 Wet bulb globe temperature ( WBGT ) ℃ 0 ℃ to 59 ℃ Range Indoor 0 ℃ to 56 ℃ Outdoor ℉ 32 to 138 ℉ Indoor 32 to 132 ℉ Outdoor ℃ ±1 ℃ ( 15 to 59 ℃ ) Accuracy ±1.5 ℃...
- Page 7 Black globe temperature ( TG ) ℃ 0 to 80 ℃ Range ℉ 32 to 176 ℉. ℃ 0.1 ℃ Resolution ℉ 0.1 ℉ ℃ ±0.6 ℃ Accuracy ℉ ±1.1 ℉ ℃ @ 15 to 40 Humidity Range 5 % to 95 % R.H. Resolution 0.1 % R.H.
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Page 8: Front Panel Description
3. FRONT PANEL DESCRIPTION Fig. 1 3-1 Display 3-2 Power Button ( ESC, Backlight Button ) 3-3 Hold Button ( Next Button ) 3-4 REC Button ( Enter Button ) 3-5 SET Button ( ▲ Button ) 3-6 ▼ Button 3-7 Humidity sensor, Air Temp. -
Page 9: Measuring Procedure
4. MEASURING PROCEDURE 4-1 Function selection 1) Turn on the meter by pressing the " Power Button " ( 3-2, Fig. 1 ) momentarily. Pressing the " Power Button " ( 3-2, Fig. 1 ) continuously and > 2 seconds again will turn off the meter. - Page 10 The meter Temp. display unit is defaulted to " ℃ " If intend to let the meter's temperature unit default to " ℉ " , then please refer chapter 5-4, page 12 ). Wet bulb globe Temp. ( WBGT ) measurement 1) Power on the meter by pressing the "...
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Page 11: Data Hold
Dew point Temp. measurement 1) Power on the meter by pressing the " Power Button " ( 3-2, Fig. 1 ). 2) Function select to " Dew point Temp. " measurement. * The upper Display will show the Dew point Temp. value. * The LCD will show a symbole for DEW. -
Page 12: Data Record ( Max./ Min. Reading )
4-3 Data Record ( Max., Min. reading ) 1) The data record function records the maximum and minimum readings. Press the " REC Button " ( 3-4, Fig. 1 ) once to start the Data Record function and there will be a " REC " symbol on the display. 2) With the "... -
Page 13: Advanced Setting
5. ADVANCED SETTING Under do not execute the Datalogger function, press the " SET Button " ( 3-5, Fig. 1 ) continuously at least two seconds will enter the " Advanced Setting " mode. then press the " Next Button " (3-3, Fig. 1 ) once a while in sequence to select the three main function, the lower display will show : PoFF.. -
Page 14: Set Wbgt Alarm
5-2 Set WBGT alarm value When the lower display show " AL " 1) Use the " ▲ Button " ( 3-5, Fig. 1 ) or " ▼ Button " ( 3-6, Fig. 1 ) to adjust the WBGT alarm value. 2) After the WBGT alarm value is selected, press the "... -
Page 15: Battery Replacement
6. BATTERY REPLACEMENT 1) When the left corner of LCD display show " ", it is necessary to replace the battery. However, in-spec. measurement may still be made for several hours after low battery indicator appears before the instrument become inaccurate. 2) Loose the screws of the "... - Page 16 The 16 digits data stream will be displayed in the following format : D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Each digit indicates the following status : Start Word When send the WBGT display data = 1 When send the Humidity display data = 2 When send the TA display data = 3 When send the TG display data = 4...
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Page 17: Appendix
8. APPENDIX Recommendations to heat exposure level for working and physical activity. ( Permissible heat exposure threshold limit ) Work/rest regimen Light Moderate Heavy ( Each hour ) 30 ℃ 26.7 ℃ 25 ℃ Continuous work ( 86 ℉ ) ( 80 ℉... - Page 18 WBGT INDEX and PHYSICAL EXERCISE WBGT Flag Activity Intensity < 26.7 ℃ White Normal activity. ( < 80 ℉ ) Caution should be taken. 26.7 to 29.4 ℃ Green Descretion is required ( 80 to 84.9 ℉ ) in planning intense physical activity.
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