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Self Recording Rain Gauge

Name: Self Recording Rain Gauge
Brand: Sami Lab Tek
Price: 4500.0 INR
Availability: InStock

Price 4500.0 INR/ Piece

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MOQ : 1 Piece

Self Recording Rain Gauge Specification

Sensor Type
Mechanical Siphon with Pen Recording

Capacity
Up to 100 mm rainfall per session

Protection
Weatherproof Casing

Connectivity Type
Manual Data Retrieval

Resolution
1 mm

Humidity %
0 to 100% RH (Non-condensing)

Diameter
200 mm (Collector Funnel)

Measurement Range
0 to 100 mm (Single Chart)

Temperature Range
-10 C to +50 C

Application Media
Rainwater

Material
Corrosion-resistant Metallic Body & Acrylic Cover

Power Supply
Mechanical (Manual Operation, No Electrical Power Required)

Power Consumption
Zero (Manual Recording, No Electronics)

Accuracy
1 mm

Display Type
Graduated Recording Chart (Manual Pen Trace)

Range
0 to 100 mm per recording session

Weight
Approx. 6 kg

Ingress Protection
Enclosed to prevent debris and insects

Chart Type
Drum type, 24-hour or 7-day rotation (mechanical clockwork driven)

Dimensions
Approx. 300 mm (H) x 200 mm (D)

Operating Principle
Measures precipitation by accumulating rain in a float chamber, records level via pen on chart

Equipment Type
Self Recording Rain Gauge

Mounting Type
Freestanding (Ground Installable)

Maintenance
Easy-access for chart and pen replacement

Calibration
Manual, as per IS:5225/1969 (or latest standard)

Recorder Drum Drive
Spring wound clockwork

Chart Paper Size
Standard 100 mm width

Recording Mechanism
Siphon float double pen arrangement

About Self Recording Rain Gauge

Self Recording Rain Gauge Description

The Self Recording Rain Gauge is a precision meteorological instrument used to measure and automatically record the amount and intensity of rainfall over a specific period. It provides continuous rainfall data without manual observation, making it highly useful for weather analysis and research.

The instrument works by collecting rainwater through a funnel, which is then directed into a recording mechanism. The system uses a chart drum or digital sensor to record rainfall data in real time, showing variations in rainfall intensity and duration.

It is manufactured using high-quality, corrosion-resistant materials to ensure reliable performance in all weather conditions. The design is robust, easy to install, and suitable for long-term outdoor use.

Features

Automatic rainfall recording system
Accurate measurement of rainfall intensity and duration
Weather-resistant and durable construction
Suitable for continuous operation

Applications

Used in meteorological stations, hydrology studies, agriculture planning, and climate research.

Mechanically Driven for Reliable Operation

This rain gauge operates via a spring-wound clockwork drum, ensuring continuous, accurate rainfall recording even in areas with no power supply. Manual calibration according to IS:5225/1969 ensures compliance with industry standards, while the mechanical siphon float maintains measurement fidelity.

Easy Maintenance and Data Retrieval

Chart and pen access is designed for user convenience, facilitating easy maintenance and quick replacements. Data is retrieved manually from the graduated recording chart, reducing reliance on digital infrastructure and enhancing long-term data security.

Designed for Durability in All Conditions

Constructed with a corrosion-resistant metallic body and weatherproof casing, this gauge is built to withstand harsh environmental conditions, from -10C to 50C and up to 100% humidity. The enclosed design guards against debris and insect ingress, ensuring long-term reliability.

FAQ's of Self Recording Rain Gauge:

Q: How does the self recording rain gauge measure and record rainfall?

A: The gauge collects rainwater in a float chamber. As the water level rises, a mechanical siphon float with a double pen traces the rain accumulation onto a drum-mounted chart, providing accurate, real-time graphical records of precipitation.

Q: What are the benefits of using a mechanical, self-recording rain gauge compared to electronic models?

A: This mechanical rain gauge requires no electrical power, ensuring zero power consumption, high reliability, and suitability for remote locations. Its simple manual data retrieval makes it ideal for long-term rainfall monitoring without digital dependencies.

Q: When should the recording chart and pen be replaced?

A: The chart paper-standard 100 mm width-should be replaced after each recording session (24-hour or 7-day cycle, depending on setup). Pen replacement is needed when ink fades or trace thickness decreases, both of which are easily managed thanks to the accessible design.

Q: Where is the best location to install the rain gauge?

A: Install the gauge in an open area away from buildings or trees to prevent water splashes or blockages. The freestanding, ground-installable design allows for flexible placement in meteorological stations, agricultural fields, and research sites.

Q: What is the calibration process, and how often should it be performed?

A: Calibration is manual and conducted according to IS:5225/1969 standards. It should be performed during initial setup, after major maintenance, or if discrepancies in recorded data are noticed to ensure accurate measurements.

Q: How does the drum-type chart recording mechanism work?

A: The drum is driven by a spring-wound clockwork mechanism. As it rotates, the pen traces rain accumulation over time on the chart. This allows for easy visualization of rainfall patterns over a 24-hour or 7-day period.

Q: What maintenance steps are recommended for long-term operation?

A: Routine maintenance involves regular chart and pen replacement, occasional calibration, and periodic cleaning of the funnel, float chamber, and enclosure to prevent debris or insect ingress. The robust, corrosion-resistant design simplifies ongoing care.

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