NABL Accredited · Dimensional Calibration
Lever Type Dial Gauge Calibration
(IS 2921 / ISO 463 — Test Indicator Calibration)
NABL-accredited calibration of lever type dial gauges (test indicators) per IS 2921 — verifying scale accuracy, cosine error correction and measuring force using NPL-traceable slip gauges.
IS 2921
Standard
±1μm
Accuracy
1 Day
Report TAT
NABL
Accredited
NABL Accredited Lab · ISO/IEC 17025:2017
Digital Reports via Autovity QLMS
Pan-India · 7 Lab Locations
Est. 2009 · 20,000+ Projects
Overview
What is the Lever Type Dial Gauge Calibration?
Lever Type Dial Gauges (DTI) use a lever-actuated contact point for measurement in confined spaces. Used for runout, alignment and face settlement in laboratory test rigs. IS 2921 specifies MPE for scale accuracy and contact angle effects.
At Global Lab, lever dial gauge calibration per IS 2921 verifies scale accuracy, stylus angle cosine error, measuring force, hysteresis and repeatability using NPL-traceable slip gauges in a comparator stand. Both analogue and digital lever indicators calibrated.
Non-Destructive
Minimal surface preparation. Structure integrity is preserved throughout testing.
Fast Turnaround
On-site results within hours. Digital reports dispatched within 24 hours.
NABL Certified
All test reports carry NABL accreditation seal valid for legal and contractual use.
Pan-India Coverage
Site engineers deployed across 7 lab locations and all major project sites.
Digital Reporting
Access reports anytime via Autovity QLMS client dashboard — zero paperwork.
High Accuracy
Results correlated to cube compressive strength with ±2% precision range.
Test in Action
Lever Type Dial Gauge Calibration — Site Images
Lever Indicator on Comparator Stand with Slip Gauge Reference
Stylus Angle Cosine Error Documented
IS 2921 MPE Compliance Check
Test Procedure
How the Lever Type Dial Gauge Calibration is Conducted
-
1
Surface Preparation
A shallow groove (approx. 25mm deep) is cut into the concrete surface using a diamond-tipped cutting tool. The surface is cleaned of dust and debris. -
2
Insert Disc Placement
A specially designed steel insert disc is placed into the groove. A thin rod connects the disc to the pullout apparatus above the surface. -
3
Hydraulic Pullout Force Application
A hydraulic jack applies a steady, controlled pullout force to the insert disc via the reaction ring resting on the concrete surface. -
4
Failure Load Recording
The maximum force at which the concrete cone is extracted is recorded. A digital load indicator provides real-time readings with data logging. -
5
Strength Calculation & Reporting
The pullout force is correlated to cube compressive strength using established calibration curves. NABL-accredited reports are issued via Autovity QLMS.
Standards & Specifications
Applicable Test Standards
| Standard | Title | Scope | Type |
|---|---|---|---|
| IS 2921 | Test Indicators (Lever Type Dial Gauges) | Lever Gauge | Indian Standard |
| ISO 463 | Dial Gauges and Test Indicators | Dial Gauge ISO | ISO |
| IS 2984 | Gauge Blocks | Reference Standard | Indian Standard |
| NABL-141 | NABL Policy on Metrological Traceability | Traceability | NABL |
Applications
Where is the Lever Type Dial Gauge Calibration Used?
Test indicator calibration for NABL annual schedule
Runout measurement indicator calibration
Face settlement indicator calibration in structural test rigs
Alignment indicator calibration for precision component inspection
Laboratory test rig position indicator calibration
Precast factory dimensional inspection indicator
Why Choose Global Lab
Our Advantages
NABL Accredited CertificatesIS 2921 certificates for NABL annual requirements.
Cosine Error DocumentedStylus angle cosine error properly documented.
Fast 1-Day CertificateCertificate within 1 working day.
Analogue & Digital BothBoth types in scope.
Pan-India CoverageDimensional calibration at all 7 locations.
Batch SubmissionMultiple indicators in one submission.