Product Description
WHIRLING HYGROMETER (PSYCHROMETERS) ZEAL England Range :- -5 to 50C 1500Range :- 20 to 120F 1500 Range :- -5 to 50C & 20 to 120F DIMPLE INDIAN in wooden frame 600 THERMOMETER DIMPLE INDIAN RangeDimplWith CertificateRange Dimple With Certificate 50C M(0.5 69 375 120F (1F)88 500 110C ( C) 69 375 220F (1F) 88 500 110C (1C)M 69 400F (2F) 88 110C (1C)A/50C(C)A 69 375 600F (2F) 100 150C (1C)M 69 375 -50C TO 50C (A) 625 150C (1C)A 69 375 -50C TO +50C 600mm 875 200C (1C)M 69 375 -30C TO 30C (A) 625 250C (1C)M 69 375 -100C TO 50C (A) 740 300C (1C)M 69 375 -50C TO 100C (A) 625 360C (2C)M 69 375-00C TO 100C (A) (450MM) 815 400C (2C)M 75 -100C TO 100C (A) (600MM) 940 600C (2C)M 100 50C M (.25) OR 1/4 DIVISION (300MM) 469Effortless Humidity and Temperature MeasurementEquipped with dual thermometers for measuring dry and wet bulb temperatures, the Whirling Hygrometer is ideal for reliable assessment of relative humidity and temperature in diverse environments. Its analog, liquid-in-glass display ensures fast, straightforward readings.
User-Friendly, Portable, and Durable DesignThis handheld hygrometer features a smooth, polished plastic handle and sturdy metal frame. Its lightweight, compact build (25 cm x 7 cm x 3 cm) makes it effortless to transport and suitable for field or laboratory use. Chemical resistance enhances durability for prolonged, repeated application.
Manual Operation, No Power RequiredPowered by simple hand rotation, this equipment operates independently of batteries or electricity. This manual mechanism not only ensures operation anywhere but also suits locations with limited power access, supporting extended, reliable measurement sessions.
FAQ's of Whirling Hygrometers:
Q: How does the Whirling Hygrometer measure relative humidity and temperature?
A: The device utilizes two thermometers-a dry bulb and a wet bulb. By manually rotating the instrument in the air, evaporation from the wet bulb cools it, allowing you to determine the temperature difference. This difference is used to calculate relative humidity using standard reference tables.
Q: What environments are suitable for using this Whirling Hygrometer?
A: With its portable and durable construction, the Whirling Hygrometer is suitable for both indoor and outdoor measurements, making it ideal for laboratory settings, educational purposes, or field meteorological studies.
Q: When should I calibrate or maintain this hygrometer?
A: The Whirling Hygrometer is factory calibrated and is designed for long-term, low-maintenance use. Regular visual inspections to check for damage or dirt on the glass thermometers are recommended to ensure continued accuracy.
Q: Where should I store the instrument when not in use?
A: For maximum durability, store the hygrometer in its protective individual box or casing, away from chemicals or environments that could damage the glass tubes or polished finish.
Q: What is the process for obtaining accurate readings with this device?
A: Moisten the wet bulb thermometer, whirl the device in the air for the recommended period, then directly read both temperatures from the analog scale. Use standard psychrometric tables to calculate humidity based on the observed values.
Q: Can the Whirling Hygrometer resist exposure to chemicals or harsh conditions?
A: Yes, the device is constructed with a corrosion-resistant frame and features chemical-resistant materials, including a polished plastic handle and borosilicate glass tubes, making it suitable for laboratory and field environments alike.
Q: What are the key benefits of using this hygrometer for laboratory or fieldwork?
A: Its manual operation means no reliance on external power, while dual thermometers and a robust, lightweight design support quick, accurate, and versatile humidity and temperature assessment across a variety of conditions.