WATER LEVEL INDICATOR AZA0871

Description

Principle of Operation

The AZA0871 operates on a proven electronic contact principle. A sensitive, fully submersible probe is connected to a graduated, high-tensile cable wound on a robust manual reel. When the probe contacts water, an electrical circuit is completed, instantly activating a clear audible buzzer and/or bright LED indicator. The water depth is read directly from the precise graduations on the cable at the reference point.

This simple yet effective system ensures high accuracy, repeatability, and ease of use, even under demanding field conditions.

Key Features

• High-precision electronic water level detection

• Audible buzzer and visual LED indication on water contact

• Slim, weighted probe suitable for narrow boreholes

• Durable, non-stretch graduated cable with clear markings

• Manual winding reel with handle and brake mechanism

• Weather-resistant, rugged construction for field use

• Portable, battery-operated, and easy to maintain

Applications

• Groundwater monitoring and aquifer studies

• Environmental site investigations and contamination assessment

• Geotechnical investigations and pore water pressure evaluation

• Hydrological studies and groundwater recharge analysis

• Dewatering system design and monitoring

• Routine inspection of domestic and industrial water wells

Technical Specifications

Model Number: AZA0871
Measurement Type: Electronic Water Level Indicator
Purpose: Static and dynamic groundwater level measurement

Sensing Probe

• Material: Stainless steel or marine-grade brass

• Diameter: Approx. 10–15 mm (suitable for narrow tubes)

• Features: Fully submersible, weighted for stable descent

Graduated Cable

• Standard Lengths: 30 m, 50 m, 100 m, 150 m, 200 m, 300 m, 500 m (as specified at order)

• Material: High-tensile steel conductors with polyethylene or PVC jacket

• Markings: Clear, indelible graduations (mm, cm, or feet/tenths)

• Properties: Stretch-resistant, kink-resistant, abrasion-resistant

Reel Assembly

• Type: Robust manual winding reel

• Features: Comfortable handle, brake to prevent free-fall, probe holder

Indicator System

• Audible: High-output buzzer

• Visual: Bright LED indicator

Power Supply

• Standard replaceable battery (typically 9V)

• Easily accessible battery compartment

Operating Temperature: –20°C to +50°C
Accuracy: High precision, typically ±0.01% of full scale
Construction: Durable, weatherproof housing for harsh field environments

How to Use

1. Lower the probe gently into the borehole or well.

2. Allow the probe to descend steadily using the reel.

3. When the probe contacts water, the buzzer/LED activates instantly.

4. Read the water depth directly from the cable marking at the reference point.

5. Record the measurement for monitoring or analysis.

Frequently Asked Questions (FAQ)

Q1: What is the primary function of the AZA0871?
It accurately measures groundwater depth in boreholes, wells, standpipes, and observation tubes.

Q2: How does the instrument detect water level?
When the probe contacts water, an electrical circuit is completed, triggering an audible and/or visual signal.

Q3: What cable lengths are available?
Standard lengths range from 30 m to 500 m, selectable based on site requirements.

Q4: Is AZA0871 suitable for harsh field conditions?
Yes. It is designed for rugged, reliable performance in demanding environmental and geotechnical fieldwork.

Q5: Does it require external power?
No. It operates on standard, easily replaceable batteries and is fully self-contained.

Q6: How is the depth measurement read?
The depth is read directly from the graduated cable at the casing or reference point when the indicator activates.