EARTH RESISTIVITY METER AZA0890 - Image 1
Click to enlarge
colour standard chart
COLOUR STANDARD CHART AZA0889
Back to products
UNIVERSAL EXTRUDER ZI 3045 FRAME HYDRAULIC AZA0891
UNIVERSAL EXTRUDER ZI 3045 FRAME HYDRAULIC AZA0891

EARTH RESISTIVITY METER AZA0890

The AZA0890 Earth Resistivity Meter from Azalab is a professional-grade instrument designed for accurate measurement of earth resistance, soil resistivity, and earth voltage. Built in compliance with ASTM G57, this meter is essential for electrical grounding design, geotechnical investigations, safety audits, and installation verification.

Engineered for field reliability, the AZA0890 offers multiple resistance ranges, earth voltage detection, and safety-focused low-current testing—making it suitable for both new installations and live system inspections.

View Specification PDF
Enquiry on WhatsApp
SKU: AZA 0890 Category:
Description

Description

Key Features & Benefits

ASTM G57 Compliant

Designed in accordance with ASTM G57 guidelines for soil resistivity testing, ensuring standardized and dependable results for grounding system design.

Wide Earth Resistance Measurement

Selectable resistance ranges allow precise testing across varying soil and grounding conditions:

  • 0–20 Ω

  • 0–200 Ω

  • 0–2000 Ω

Earth Voltage Measurement

Measures earth voltage up to 200V AC (40–500Hz), enabling users to detect live voltage on grounding systems before resistance testing.

Low Test Current (2mA)

Uses a safe 2mA measuring current, preventing nuisance tripping of ELCBs/RCCBs, even during testing on live installations.

Auto Power-Off

Smart energy-saving function automatically switches the unit off 3–5 minutes after test activation.

Data Hold Function

Allows readings to be frozen on the display for easy recording in field conditions.

Portable & Field-Ready

Compact, lightweight design ensures easy handling and transport in industrial, construction, and remote site environments.

Battery Operated

Operates independently without external power—ideal for on-site testing.

Technical Specifications

Parameter Specification
Model AZA0890
Standard Compliance ASTM G57
Earth Resistance Ranges 0–20Ω / 0–200Ω / 0–2000Ω
Earth Voltage Range 0–200V AC (40–500Hz)
Measuring Current 2mA (ELCB safe)
Display Digital LCD
Power Supply Battery operated
Auto Power-Off Yes (3–5 minutes)
Data Hold Yes
Safety Rating IEC 1010, CAT III 200V
Calibration Factory calibrated with test leads
Construction Compact, lightweight housing

Applications

  • Soil resistivity measurement (Wenner method)

  • Grounding system design and validation

  • Electrical installation inspection

  • Lightning protection testing

  • Industrial safety audits

  • Power distribution maintenance

  • Telecom and substation grounding checks

Frequently Asked Questions (FAQ)

Q1: What is ASTM G57 used for?
ASTM G57 provides guidance for measuring soil resistivity using standardized methods essential for grounding system design.

Q2: Can AZA0890 be used on live systems?
Yes. The 2mA test current avoids tripping most earth leakage circuit breakers.

Q3: What voltage range can it measure?
It measures AC earth voltage from 0–200V within 40–500Hz.

Q4: Is recalibration required after purchase?
No immediate recalibration is needed. Annual recalibration is recommended for accuracy assurance.

Q5: Are test leads included?
Yes. The unit is supplied with test leads and delivered factory calibrated.

AZA0890 – Accurate, Safe & Standard-Compliant Earth Resistivity Testing

A dependable Azalab solution for professionals demanding precision, safety, and field reliability.

Related products

AUTOMATIC SOIL COMPACTOR AZA0867

The AZA0867 Automatic Soil Compactor from Azalab is a precision-engineered laboratory machine designed to perform Standard Proctor and Modified Proctor compaction tests with high repeatability and minimal operator dependency. The system mechanizes the hammer lifting and dropping process, ensuring consistent compaction energy in strict accordance with international standards. This apparatus is essential for geotechnical laboratories involved in road construction, airfield pavements, embankments, earth dams, and foundation engineering, where accurate determination of Maximum Dry Density (MDD) and Optimum Moisture Content (OMC) is critical for quality control and design validation.
Read more
Quick view

HEAVY COMPACTION TEST AZA0866

The AZA0866 Heavy Compaction Test Set from Azalab is designed for determining the Maximum Dry Density (MDD) and Optimum Moisture Content (OMC) of soils using the Heavy Compaction (Modified Proctor) Method, in accordance with IS 2720 (Part VIII). This test is fundamental in geotechnical engineering, road and highway construction, foundation design, embankment works, and earthworks where soils are subjected to high compactive effort. The heavy compaction test realistically simulates field compaction achieved by modern construction equipment, enabling reliable prediction of soil behavior under service loads. This configuration is supplied with a 150 mm diameter mould (2250 cc volume), making it particularly suitable for coarse-grained and granular soils. Scope of Use The AZA0866 Heavy Compaction Test Set is used to establish the relationship between moisture content and dry density of soil under heavy compaction energy. The resulting compaction curve is used to determine MDD and OMC, which are essential parameters for compaction control and quality assurance in field construction.
Read more
Quick view

HIGH SPEED STIRRER AZA0855

The AZA0855 High Speed Stirrer from AZA Lab is a robust and versatile laboratory instrument designed for efficient mixing, homogenizing, and dispersion of liquids and semi-liquids. Engineered for mechanical analysis as well as general laboratory applications, it is ideal for research, analytical, academic, and industrial laboratories requiring precise and reliable stirring performance. Driven by a high-torque motor, the AZA0855 is capable of achieving high stirring speeds of approximately 4000 RPM under load, ensuring uniform blending, effective particle dispersion, and consistent results. The unit supports a dispersion cup mounted on a dedicated rest provided on the stirrer stand, complete with a removable baffle to enhance mixing efficiency and reduce vortex formation. Operating on 230V AC, the AZA0855 is suitable for continuous laboratory use and is supplied with a dispersion cup / baffle cup in accordance with AZA Lab design principles.
Read more
Quick view

INFRARED MOISTURE METER AZA0875

The AZA0875 Infrared Moisture Meter from Azalab is a high-precision analytical instrument designed for fast, accurate moisture content determination across a wide range of materials. Utilizing advanced infrared (halogen) heating technology, the AZA0875 significantly reduces analysis time compared to conventional oven-drying methods, delivering reliable results within minutes.

This instrument is ideally suited for geotechnical laboratories, construction quality control, chemical and pharmaceutical industries, food processing, and material testing laboratories, where rapid and repeatable moisture data is essential for process control and compliance.

Read more
Quick view

LINEAR SHRINKAGE MOULD AZA0850

The AZA0850 Precision Linear Shrinkage Mould from AZALAB is a compact and highly accurate laboratory instrument designed for determining the linear shrinkage of fine-grained cohesive soils in accordance with BS 1377-2. This test is a key component of soil classification and is especially important in identifying shrink–swell behavior of clays and expansive soils.

Linear shrinkage testing measures the reduction in length of a soil specimen upon drying, expressed as a percentage of its original length. The results provide valuable insight into soil expansiveness, volume stability, and suitability for foundations, pavements, and earthworks.

Manufactured from high-quality brass or stainless steel, the AZA0850 mould offers precise internal dimensions, excellent corrosion resistance, and a smooth polished finish for easy sample preparation and removal. Its robust construction ensures repeatable, reliable results even under high-frequency laboratory use.

Read more
Quick view

PLASTIC LIMIT SET AZA0848

The AZA0848 Plastic Limit Set is a standardized soil testing kit designed for the accurate determination of the plastic limit of fine-grained soils, in accordance with IS: 2720 (Part 5) and ASTM D4318. The plastic limit is a fundamental soil index property used in soil classification and in evaluating soil behavior under varying moisture conditions. This test kit is an essential component of geotechnical investigations, civil engineering projects, and soil mechanics laboratories, providing reliable and repeatable results in both laboratory and field environments. Purpose & Importance The plastic limit represents the lowest moisture content at which soil remains plastic and can be rolled into threads of 3 mm diameter without crumbling. Determination of this limit is critical for:
  • Soil classification (Atterberg limits)
  • Assessing workability and consistency
  • Evaluating shrink–swell characteristics
  • Supporting foundation, pavement, and earthwork design
The AZA0848 set provides all required accessories to conduct the test accurately, efficiently, and in full compliance with applicable standards.
Read more
Quick view

SOIL CONE PENETROMETER AZA0851

The AZA0851 Precision Cone Penetrometer from AZALAB is a high-accuracy laboratory instrument designed for determining the liquid limit of fine-grained soils using the cone penetration method. The apparatus fully complies with IS 2720 (Part 5) and ASTM D4318, making it suitable for standardized soil classification and geotechnical investigations. Unlike the Casagrande method, the cone penetrometer provides a more objective and repeatable measurement of liquid limit by correlating soil consistency to the depth of penetration of a standardized cone under its own weight. This method is widely preferred in modern soil mechanics laboratories due to reduced operator dependency and higher precision.

Principle of Operation

A soil paste prepared at a known moisture content is placed in the sample cup. The stainless steel cone, of specified mass and angle, is allowed to penetrate the soil freely for 5 seconds. The depth of penetration (up to 20 mm) is measured using a precision depth gauge. The moisture content corresponding to 20 mm penetration is defined as the liquid limit of the soil.

Standards Compliance

  • IS 2720 (Part 5) – Determination of liquid and plastic limits
  • ASTM D4318 – Liquid Limit, Plastic Limit, and Plasticity Index of Soils
Read more
Quick view

SPEEDY MOISTURE ZI 3027 METER (D2 LARGE) AZA0873

The AZA0873 Speedy Moisture ZI 3027 Meter (D2 Large) from Azalab is a high-performance field instrument designed for rapid and accurate determination of moisture content in soils, aggregates, sand, and similar materials. Based on the proven calcium carbide gas pressure method, this instrument is widely used in earthwork compaction control, road construction, geotechnical investigations, and concrete production, where immediate moisture data is critical for quality assurance.

The D2 Large configuration distinguishes the AZA0873 by allowing a larger sample size, providing more representative and reliable results, especially for heterogeneous materials and aggregates with larger particle sizes. Its rugged ZI 3027 construction ensures dependable performance under demanding site conditions.

Read more
Quick view