SPEEDY MOISTURE ZI 3027 METER (D2 LARGE) AZA0873

Description

Principle of Operation

The AZA0873 operates on the calcium carbide reaction principle. When moisture present in the test sample reacts with calcium carbide (CaC₂) inside a sealed pressure vessel, acetylene gas (C₂H₂) is generated. The pressure produced is directly proportional to the moisture content of the sample.

A precision-calibrated pressure gauge, integrated into the vessel, directly indicates the moisture content as a percentage. The test is fully self-contained and does not require any external power source, making it ideal for remote and on-site applications.

Key Features

• Rapid, on-site moisture content determination
• Calcium carbide gas pressure method
• D2 Large capacity for larger, more representative samples
• Direct moisture percentage readout on calibrated gauge
• No electricity or external power required
• Robust ZI 3027 frame for intensive field use
• Quick results enabling real-time decision-making

Applications

• Earthwork and embankment compaction control
• Road and pavement construction quality checks
• Aggregate and sand moisture assessment
• Concrete mix moisture control
• General geotechnical and construction field testing

Technical Specifications

Model Number: AZA0873 (ZI 3027)
Apparatus Type: Speedy Moisture Meter – D2 Large
Measurement Principle: Calcium Carbide Gas Pressure Method
Test Type: Field / On-site testing

Moisture Content Range:

• Typically 0–20% or up to 0–50% (depending on D2 Large gauge calibration)

Sample Size (Capacity):

• Large capacity sample, typically 20 g or 26 g

Accuracy:

• Approx. ±0.2% at low moisture levels
• Approx. ±0.5% at higher moisture levels

Main Components:

• Airtight pressure vessel (heavy-duty aluminum alloy)
• Precision pressure gauge calibrated in % moisture (D2 Large scale)
• Secure sealing clamp
• Portable digital weighing balance (0.01 g readability)
• Chrome steel mixing balls
• Measuring scoop and cleaning brush

Reagent:

• Calcium carbide powder (supplied separately)

Power Requirement:

• None (self-contained chemical reaction)

Portability:

• Supplied in a sturdy carrying case for field use

Compliance:

• Designed in accordance with ASTM D4944
• IS 2720 (Part 2) – equivalent principles

Construction:

• Durable ZI 3027 frame suitable for harsh site conditions

Operating Procedure (Summary)

1. Weigh the required sample (20 g or 26 g).
2. Place the sample, steel balls, and calcium carbide into the vessel.
3. Seal the vessel securely using the clamp.
4. Shake vigorously to initiate the reaction.
5. Read the moisture percentage directly from the gauge within a few minutes.

Frequently Asked Questions (FAQ)

Q1: What is the primary use of AZA0873?
It is used for rapid, accurate field determination of moisture content in soils, aggregates, and granular materials.

Q2: What does “D2 Large” mean?
It indicates a larger sample capacity compared to standard Speedy meters, improving result reliability for coarse or heterogeneous materials.

Q3: How quickly are results obtained?
Results are typically available within 5–10 minutes.

Q4: Does AZA0873 require electricity or batteries?
No. The instrument is fully mechanical and chemical-reaction based.

Q5: Which standards does AZA0873 follow?
It conforms to the principles of ASTM D4944 and IS 2720 (Part 2).