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Length Comparator With Gauge

Name: Length Comparator With Gauge
Brand: Sami Lab Tek
Price: 8000.0 INR
Availability: InStock

Price 8000.0 INR/ Unit

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MOQ : 1 Unit

Length Comparator With Gauge Specification

Specimen Size
Up to 250 mm length (other sizes upon request)

Power Supply
Not required (manual device)

Number of Specimens
1 at a time

Measuring Range
0-10 mm (Dial Gauge)

Hardness
Stand made of hardened steel

Temperature
Operating range: 20C 2C

Equipment Type
Length Comparator with Dial Gauge

Accuracy
0.01 mm

Features
High precision, rigid construction, adjustable specimen supports, easy operation

Display Type
Dial Gauge

Interface Type
Manual/Analog

Application
For precise measurement of changes in length of cement, mortar, and concrete specimens

Response Time
Instant (mechanical)

Max Height
Approx. 300 mm specimen clearance

Mounting Type
Bench Top

Test Range
0 - 10 mm (standard gauge supplied)

Resolution
0.001 mm

Humidity
Operating range: 40% - 70% RH

Automation Grade
Manual

Usage
For laboratory testing of cement/concrete samples

Capacity
Standard laboratory

Machine Weight
Approx. 30 kg

Test Speed
Manual operation

Test Width
Standard

Test Stroke
Up to 100 mm

Control Mode
Comparator gauge with manual lever

Frame Structure
Heavy-duty cast iron

Gauge Graduations
0.001 mm per division

Finish
Powder coated for maximum durability

Alignment Adjustment
Fine knurled screws for precise specimen alignment

Compliance Standards
IS: 9459, ASTM C490 (where applicable)

Specimen Support Type
Adjustable shelf with V-grooved anvil

Contact Point Material
Hardened stainless steel

Stand Dimensions (L x W x H)
400 mm x 200 mm x 320 mm

Standard Accessories
Calibration bar, adjustable anvil, dial gauge, instruction manual

About Length Comparator With Gauge

The Length Comparator with Gauge is a precision laboratory instrument used for measuring the length change (expansion or shrinkage) of cement mortar, concrete, and other construction material specimens. It is widely used in construction material testing laboratories to assess the dimensional stability and durability of cement-based products.

This apparatus consists of a rigid frame fitted with a high-accuracy dial gauge or digital gauge, which measures minute changes in specimen length with high precision. It is designed to provide reliable and repeatable readings during long-term testing of specimens.

Manufactured using robust and corrosion-resistant materials, the Length Comparator ensures stability, accuracy, and long service life. It is suitable for routine laboratory testing as well as advanced research applications in civil engineering.

Key Features:

High-precision dial/digital gauge for accurate readings
Rigid and stable frame construction
Measures minute expansion and shrinkage changes
Corrosion-resistant and durable body
Easy setup and operation
Suitable for long-duration testing

Applications:

Cement and mortar testing laboratories
Civil engineering research institutes
Construction material quality control departments
Infrastructure development projects
Academic and training laboratories

Working Principle:

The comparator measures the change in length of a test specimen over time using a high-sensitivity gauge system. Any expansion or shrinkage is recorded to evaluate the dimensional stability of the material.

Precision Measurement for Laboratory Testing

This length comparator excels at providing highly accurate measurements with its dial gauge, ensuring readings down to 0.001 mm. Designed for use with cement, mortar, and concrete specimens, it is essential for laboratories conducting compliance and quality assessments.

Robust Build and Reliable Alignment

Engineered with a heavy-duty cast iron frame and powder-coated finish, the instrument withstands rigorous laboratory conditions. Fine knurled screws and adjustable specimen supports ensure secure alignment and repeatable measurements every time.

Manual Operation, No Power Needed

Operated entirely by hand with a manual lever and precise dial gauge, this length comparator eliminates the need for a power supply. Its rapid response and instant measurement capability make it reliable for time-sensitive tests.

FAQ's of Length Comparator With Gauge:

Q: How do I properly use the Length Comparator with Dial Gauge for specimen measurement?

A: Begin by placing the specimen on the adjustable shelf with the V-grooved anvil. Use the fine knurled screws to align the sample precisely between the hardened stainless steel contact points. Operate the manual lever to bring the contact point into position, and read the change in length directly from the dial gauge.

Q: What types of specimens can be tested with this comparator?

A: This device is designed primarily for cement, mortar, and concrete specimens up to 250 mm in length. Custom-sized supports for other specimen dimensions are available upon request, making it versatile for a range of laboratory samples.

Q: When should calibration be performed on the comparator?

A: Calibration is recommended before initial use, and periodically depending on frequency of testing and laboratory protocols. The included calibration bar and instruction manual provide step-by-step guidance for maintaining measurement accuracy.

Q: Where should the length comparator be installed for optimal use?

A: Install the unit on a stable, level benchtop in a controlled laboratory environment, ideally within the specified temperature (20C 2C) and humidity (40%-70% RH) ranges for reliable and accurate readings.

Q: What is the process for adjusting specimen alignment on this device?

A: The fine knurled screws allow for incremental adjustment of the specimen position. This ensures that specimens are properly centered and aligned with the measuring axis, minimizing measurement errors and enhancing repeatability.

Q: What are the benefits of using a length comparator with a dial gauge?

A: The main benefits include high measurement accuracy (0.01 mm), immediate response with mechanical display, straightforward manual operation, and robust construction. These features help ensure precise assessments of length changes in laboratory samples.

Q: How does the comparator comply with standard testing requirements?

A: This instrument adheres to IS: 9459 and is compatible with ASTM C490 standards for length change measurements, ensuring valid and recognized results in laboratory testing applications.

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