1. Introduzzjoni
The Sper Scientific Wet Bulb Globe Temperature (WBGT) Heat Stress Meter, Model 801038, is a professional-grade instrument designed to accurately measure and monitor heat stress conditions. This device is crucial for assessing environmental factors that contribute to heat-related illnesses in various settings, including workplaces, sports activities, and general environmental monitoring. It provides a clear, color-coded WBGT value on a large LCD display, simplifying the interpretation of OSHA WBGT guidelines.
Figure 1: Sper Scientific WBGT Heat Stress Meter, Model 801038.
2. Informazzjoni dwar is-Sigurtà
Jekk jogħġbok aqra u ifhem l-istruzzjonijiet kollha tas-sigurtà qabel ma tħaddem l-apparat.
- Do not expose the meter to extreme temperatures or direct sunlight for prolonged periods when not in use.
- Avoid dropping the device or subjecting it to severe impact.
- Do not attempt to disassemble or modify the meter. Refer all servicing to qualified personnel.
- Kun żgur li l-batteriji huma mdaħħla b'mod korrett skont il-marki tal-polarità.
- Neħħi l-batteriji jekk l-apparat ma jkunx se jintuża għal perjodu estiż biex tevita t-tnixxija.
3. Kontenut tal-Pakkett
Iċċekkja li l-oġġetti kollha huma preżenti meta tiftaħ il-pakkett:
- Sper Scientific WBGT Heat Stress Meter (Model 801038)
- Kmiem Protettiv
- Batteriji AAA (4 inklużi)
- Manwal ta' Istruzzjoni
4. Prodott Aktarview
Familiarize yourself with the components of your WBGT Heat Stress Meter.
Figure 2: Key components of the Sper Scientific WBGT Meter.
- Black Globe (Brass): Measures radiant heat.
- Sensor Protective Sleeve: Protects the sensors when not in use.
- Display LCD: Shows all measurement values and alerts.
- Buttuna POWER: Jixgħel/jitfi l-apparat.
- TA/TG Button: Toggles between Air Temperature (TA) and Globe Temperature (TG) display.
- MIN/MAX/ESC Button: Displays minimum/maximum values or exits a menu.
- Buttuna SET: Enters settings menu or confirms selection.
- IN/OUT Button: Selects indoor or outdoor WBGT calculation mode.
- Buttuna HOLD: Freezes the current display readings.
5. Setup
5.1 Installazzjoni tal-batterija
The meter requires 4 AAA batteries (included).
- Sib l-għatu tal-kompartiment tal-batterija fuq wara tal-apparat.
- Żerżaq jew neħħi l-għatu biex tiftaħ.
- Daħħal żewġ batteriji AAA, waqt li tiżgura l-polarità korretta (+/-) kif indikat ġewwa l-kompartiment.
- Ibdel l-għatu tal-kompartiment tal-batterija b'mod sikur.
5.2 Qawwa Inizjali
Agħfas il- QAWWA button to turn on the meter. The LCD display will illuminate and begin showing readings.
6. Istruzzjonijiet Operattivi
6.1 Teħid tal-Kejl
Once powered on, the meter automatically begins measuring. Ensure the black globe and sensors are exposed to the environment you wish to monitor.
6.2 Wiri Informazzjoni
Figure 3: Comprehensive data display showing Globe Temperature, Ambient Air Temperature, Relative Humidity, and WBGT value.
The large LCD screen simultaneously displays:
- WBGT Value: The primary heat stress index.
- Air Temperature (TA): The ambient air temperature.
- Globe Temperature (TG): The temperature measured by the black globe, indicating radiant heat.
- Umdità Relattiva (RH): The amount of moisture in the air.
6.3 Selecting Indoor/Outdoor Mode
Agħfas il- IN/OUT button to switch between indoor and outdoor WBGT calculation modes. The display will indicate the selected mode (IN or OUT). This is important as the WBGT calculation formula differs for indoor and outdoor environments.
6.4 L-Użu tal-Funzjoni HOLD
Agħfas il- ŻOMM button to freeze the current readings on the display. Press it again to resume live measurements.
6.5 Minimum/Maximum Readings
Agħfas il- MIN/MAX/ESC button to cycle through minimum and maximum recorded values for each parameter since the device was last reset or powered on.
7. Understanding WBGT and Color-Coded Alerts
The WBGT meter translates OSHA guidelines into a simple, color-coded alert system to indicate heat stress risk levels.
Figure 4: Color-coded WBGT alert levels and associated precautions.
| Medda WBGT | Kulur tal-Iskrin | Workforce Precautions |
|---|---|---|
| < 80.0°F / < 26.6°C | Griż | Basic heat safety training and planning. |
| 80.1 sa 84.9 ° F / 26.7 sa 29.3 ° C | Aħdar | Implement precautions and heighten awareness. |
| 85.0 sa 87.9 ° F / 29.4 sa 31.0 ° C | Oranġjo | Additional precautions are necessary to protect workers. |
| 88.0 sa 89.9 ° F / 31.1 sa 32.1 ° C | Aħmar | Analysis of activity level is necessary to protect workers. |
| > 90.0°F / > 32.2°C | Aħmar li jteptep | Triggers even more aggressive protective measures. |
The meter also features an optional audible alarm that activates when heat stress levels reach dangerous thresholds, providing an immediate alert in high-risk environments.
Figure 5: The meter indicating an audible alarm for high heat stress.
8. Manutenzjoni
8.1 Tindif
Imsaħ il-barra tal-miter b'ċarruta ratba u damp cloth. Do not use abrasive cleaners or solvents. Ensure no liquid enters the sensor areas or battery compartment.
8.2 Ħażna
When not in use, store the meter in its protective sleeve in a cool, dry place, away from direct sunlight and extreme temperatures. Remove batteries if storing for extended periods.
Figure 6: The meter is durable and portable, suitable for handheld use or tripod mounting.
9 Issolvi l-problemi
| Problema | Kawża Possibbli | Soluzzjoni |
|---|---|---|
| Il-miter ma jixgħelx. | Batteriji mejta jew installati ħażin. | Iċċekkja l-polarità tal-batterija. Ibdel b'batteriji AAA ġodda. |
| Qari mhux preċiż. | Sensors are obstructed or dirty. Meter not stabilized. | Ensure sensors are clean and unobstructed. Allow meter to stabilize in the environment for a few minutes before taking readings. |
| Id-displej huwa mċajpar jew qed jitteptep. | Qawwa baxxa tal-batterija. | Ibdel l-4 batteriji AAA kollha. |
| Audible alarm not sounding. | Alarm function is disabled or volume is too low. | Check settings via the SET button to ensure the alarm is enabled and set to an audible level. |
10. Speċifikazzjonijiet
- Numru tal-Mudell: 801038
- Brand: Sper Scientific
- Tip ta 'Wiri: Digital LCD with Color-Coded Backlight
- Sors tal-Enerġija: 4 x AAA Batteries (included)
- Dimensjonijiet tal-Prodott: 12 x 3 x 1.5 pulzieri
- Piż: 11 uqija
- Materjal ta 'barra: Plastik
- WBGT Measurement Range: Varies by mode and environmental conditions.
- Firxa tat-Temperatura tal-Arja: 0 sa 50°C (32 sa 122°F)
- Globe Temperature Range: 0 sa 80°C (32 sa 176°F)
- Firxa ta 'Umdità Relattiva: 5% sa 90% RH
- Konformità: OSHA-compliant heat risk alerts
- Konnettività: USB (for data logging, if applicable - Note: Specific USB functionality details may require further manual consultation.)
