Test Chamber Calibration

Accurate calibration is essential to ensure confidence in your environmental testing results. ETS provides professional calibration services for environmental and laboratory test chambers across the UK. We support all makes and models, helping organisations maintain measurement accuracy, traceability and compliance with internal and external quality requirements.
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Precision Calibration for Reliable Results

In today’s quality-driven industries, confidence in environmental test data is critical. Inadequately calibrated chambers can result in:

  • False pass results, increasing warranty and product risk
  • False fail results, leading to unnecessary investigation and cost
  • Compromised audit compliance
  • Loss of repeatability and measurement confidence

Our calibration service verifies the performance of the complete chamber system – not just individual components.

We use calibrated monitoring sensors positioned within the working envelope and at the control point to measure true environmental conditions. All equipment used by our engineers is UKAS calibrated.

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Calibration Capabilities

Temperature

  • Multipoint:

    PC based temperature logging system with up to 16 1/10 Din PT100 sensors
  • Two-point:

    Eurotherm automated logging thermometer

Humidity

  • Multipoint:
    Michell Optidew Condensation Hygrometer, directly linked to PC based logging system
  • Two-point:

    Eurotherm automated logging hygrometer using Rotronic capacitive sensor

Vacuum

  • Drück pressure indicator type DPI 10

Calibration Methods

We offer two types of calibration:

1. Standard Calibration

Traceable to national standards.

Reports include:

  • Temperature and humidity readings
  • Indication of instability
  • Full calibration certificate

2. UKAS Calibration

Undertaken by our UKAS accredited calibration laboratory No. 9735 in accordance with ISO 17025:2017.

UKAS calibration includes:

  • Measurement uncertainty values
  • UKAS logo and laboratory number on certificate
  • Calibration label applied to equipment
  • Calibration carried out by approved UKAS engineers

Calibration Configurations

Climatic Chambers

  • Two-point calibration (centre of chamber and control point)
  • Multipoint calibration (temperature/humidity mapping using nine sensors)
  • Standard quotation includes five temperature setpoints and four humidity setpoints
  • Additional setpoints available on request

Ovens

  • Three temperature setpoints included

Fridges and Freezers

  • Maximum and minimum temperatures recorded
  • Measurements taken over at least three cyclic periods
  • Readings typically recorded at 30-second intervals

A calibration certificate and label are issued upon completion of analysed results and achievement of agreed pass/fail criteria.

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Quality Assurance and Traceability

ETS operates under ISO 9001 quality management systems and ISO 17025:2017 accreditation for UKAS calibration services. Strict documentation and procedural control ensures full traceability and professional reporting.

With over 40 years of experience supporting aerospace, automotive, defence, electronics and telecoms sectors, ETS provides dependable calibration services designed to maintain testing integrity and audit confidence.

Submit an enquiry for calibration services

To request a calibration quotation or discuss your chamber type and required setpoints, contact our team today by submitting an enquiry.
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Other Products & Services

Control & Data Logging Systems

Upgrade or replace legacy chamber controllers with modern control and data logging systems. Improve accuracy, traceability and reporting while extending equipment life.

General Purpose Ovens

Robust and reliable ovens for controlled temperature testing, drying and thermal processing applications. Suitable for laboratory, aerospace, automotive and electronics environments.

Test Chambers Refurbishment

Comprehensive refurbishment of climatic chambers at our Nazeing facility. Restore reliability, improve control accuracy and extend operational life.

Service & Maintenance

Planned preventative maintenance, breakdown support and calibration for all makes of environmental test chamber. Helping you minimise downtime and maintain performance.

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