Calibration

FAQ After-Sales Service Calibration Downloads

What is calibration?

Every breathalyzer, regardless of type or method, needs regular calibration to ensure accurate and reliable results.

Calibration is the process of checking a breathalyzer's accuracy by comparing its readings against a reference value, and adjusting it when needed to maintain accuracy and performance.

For example, when a calibrator presents a 0.050 %BAC reference alcohol sample to the breathalyzer, calibration means setting the device so it reads exactly 0.050 %BAC.

Calibration Methods

Breathalyzer calibration is divided into dry gas and wet gas methods, depending on the type of reference gas or solution used.

Dry Gas Method

Uses a reference gas made by mixing moisture-free alcohol gas with inert nitrogen.

Wet Gas Method

Wet gas is made by mixing high-purity alcohol with water and diluting it to the reference concentration required for calibration.

The method used may vary with the type of breathalyzer and its operating environment.

Calibration Interval

A breathalyzer's accuracy and reliability are maintained through regular calibration at the interval the manufacturer recommends. Use the guidelines below to check your storage and operating conditions.

500 tests
/1 year

Recommended interval,
whichever comes first

6 months

Recommended interval
for frequent use

Storage Caution

Prolonged use or storage in hot, humid
conditions may damage the device

Calibration Request Process

A typical calibration request follows the steps below.
Details may vary slightly by calibration type.

Download and complete
the request form

Ship the product

Dry or wet
calibration

Certificate issued
and product returned

DATECH Calibration

A calibration service performed by DATECH using its own calibration equipment and skilled technicians.

Dry / Wet

Both methods supported

Fast Turnaround

Reasonable cost

In-house Certificate

Calibration certificate issued

We support both dry and wet gas methods, comparing reference and measured values to verify the breathalyzer's accuracy and adjusting it when needed.

With fast turnaround and reasonable cost, it suits individuals, businesses and institutions that want to keep their devices accurate in everyday use.

Download Request Form

Korail Form

National Police Agency Form

KOLAS Accredited Calibration

KOLAS (Korea Laboratory Accreditation Scheme) is the national body that accredits and oversees calibration laboratories under the Framework Act on National Standards.

As a KOLAS-accredited calibration lab, DATECH performs calibration under strict procedures and issues nationally accredited certificates.

These certificates can be used in a variety of situations that require legal or official validity.

When supplying government agencies or public institutions

When official evidence is needed for litigation or disputes

When responding to internal audits or certification reviews

Download Request Form

KOLAS Accredited Calibration Request Form

Consent to Collection, Use and Provision of Personal Information

Impartiality Statement

A statement declaring the independence
and impartiality of DATECH's calibration service.