Introdución
The Extech HT30 is a specialized meter designed to measure Wet Bulb Globe Temperature (WBGT), which accounts for the combined effects of temperature, humidity, and direct or radiant sunlight. It also calculates the Heat Stress Index, indicating how hot it feels when humidity, air movement, and radiant heat are considered. The device features a Black Globe Temperature (TG) sensor to monitor solar radiation effects on exposed surfaces and an in/out function for WBGT readings with or without direct sun exposure. Additional functionalities include an Auto Power Off feature with override and a built-in RS-232 interface for data communication.
O que hai na caixa
- Extech HT30 Heat Stress WBGT Meter
- 2 x pilas AAA
Configuración
Instalación de baterías
The Extech HT30 requires 2 AAA batteries for operation. To install or replace batteries:
- Localice a tapa do compartimento da batería na parte traseira da unidade.
- Deslice a tapa na dirección indicada pola frecha.
- Insira as 2 pilas AAA, asegurándose de manter a polaridade correcta (+ e -).
- Volva colocar a tapa do compartimento da batería ata que encaixe firmemente no seu lugar.
Encendido inicial
Preme o POTENCIA button to turn the meter on. The display will illuminate and show the current readings.
Instrucións de funcionamento
Comprensión da pantalla
Fronte view of the Extech HT30 Heat Stress WBGT Meter, showing the display and control buttons.
The large LCD displays various measurements. The primary reading is typically the Wet Bulb Globe Temperature (WBGT) or Air Temperature (TA), depending on the selected mode. Indicators on the display show the current measurement unit and mode.
Modos de medición
The HT30 can measure several parameters crucial for heat stress assessment:
- Wet Bulb Globe Temperature (WBGT): This comprehensive measurement considers temperature, humidity, and direct or radiant sunlight.
- Heat Stress Index: Measures how hot it feels when humidity is combined with temperature, air movement, and radiant heat.
- Black Globe Temperature (TG): Monitors the effects of direct solar radiation on an exposed surface.
- Air Temperature (TA): Standard ambient air temperature.
- Humidade: Humidade relativa porcenttage.
The HT30 considers temperature, humidity, and radiant heat for accurate heat stress assessment.
Selecting Measurement Units and Modes
Usa o MODO button to cycle through the available measurement parameters (WBGT, Heat Stress Index, TG, TA, Humidity). The display will update to show the selected reading.
The unit allows selection between degrees Fahrenheit (°F) and degrees Celsius (°C). Refer to the full manual for specific button combinations to change temperature units.
The meter features an In/Out function for WBGT readings and selectable units for temperature.
In/Out Function for WBGT
The HT30 includes an "In/Out" function to display the WBGT value with or without direct sun exposure. This is critical for accurate assessment in various environments. Consult the detailed instructions in the complete user manual for how to activate and interpret this function.
The Black Globe Temperature sensor monitors the effects of direct solar radiation on an exposed surface.
Apagado automático
To conserve battery life, the HT30 is equipped with an Auto Power Off feature. The meter will automatically shut down after a period of inactivity. This feature can be overridden if continuous measurement is required. Refer to the full user manual for instructions on disabling the Auto Power Off function.
Interface RS-232
The built-in RS-232 interface allows for data transfer to a computer for logging and analysis. Optional PC software is required for this functionality. Consult the software's documentation and the HT30 manual for connection and data transfer procedures.
Mantemento
Limpeza
Limpar a superficie c do medidorasing con anuncioamp cloth as needed. Do not use abrasive cleaners or solvents. Keep the sensors clean and free from dust and debris to ensure accurate readings.
Almacenamento
When not in use for extended periods, remove the batteries to prevent leakage and damage to the unit. Store the meter in a cool, dry place, away from direct sunlight and extreme temperatures.
Resolución de problemas
| Problema | Causa posible | Solución |
|---|---|---|
| O medidor non se acende. | Baterías gastadas ou instaladas incorrectamente. | Substitúa as pilas, asegurándose de que a polaridade sexa correcta. |
| Lecturas inexactas. | Dirty sensors, extreme environmental conditions, or interference. | Clean sensors. Allow meter to stabilize in the environment. Avoid strong electromagnetic fields. |
| Display shows "OL" or "---". | Measurement range exceeded or sensor error. | Ensure measurements are within specified ranges. If problem persists, contact support. |
Especificacións
Detailed specifications for the Extech HT30 Heat Stress WBGT Meter.
| Parámetro | Rango | Precisión básica |
|---|---|---|
| Temperatura de globo húmido (WBGT) | De 32 a 122 °C (0 a 50 °F) | ±4 °F/2 °C |
| Black Globe Temperature (TG) | De 32 a 176 °C (0 a 80 °F) | ±4 °F/2 °C |
| Temperatura do aire (TA) | De 32 a 122 °C (0 a 50 °F) | ±1.8 °F/1.0 °C |
| Humidade | 0 a 100% RH | ± 3% RH |
Especificacións físicas e eléctricas
- Dimensións do produto: 1.6 x 1.6 x 9.4 polgadas (4.06 x 4.06 x 23.88 cm)
- Peso do artigo: 4.94 onzas (0.14 kg)
- Baterías: 2 pilas AAA (incluídas)
- Cor: Negro
Dimensions of the Extech HT30 Heat Stress WBGT Meter.
Garantía e Soporte
For warranty information, technical support, or service inquiries, please refer to the official Extech websitio web ou póñase en contacto co seu departamento de atención ao cliente. Garde o recibo da compra como proba de compra para reclamacións de garantía.
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