الطابق 1، رقم 3، شارع شوغانغ، بلدة هونغمي، مدينة دونغقوان، مقاطعة قوانغدونغ، الصين

صانع غرف الاختبار البيئي لمدة 20 عامًاأكثر من 3000 تسليم للعملاء حول العالم   البريد الإلكتروني: shirley@deruitest.com
WhatsApp Consultation：+86 135 2795 8363
Review the Measurement Evidence for the Ordered Chamber

Document type, measured parameter, chamber identification, range, date and issuing organization should be checked against the purchasing requirement.

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Environmental chamber documentation

Verify the Evidence Behind the Test Chamber

A certificate is useful only when its organization, scope, model, configuration and validity match the equipment being purchased.

This page organizes DERUI quality-management, product-conformity, calibration, inspection and engineering documents for environmental test chambers. Use it to identify the evidence required for temperature, humidity, thermal shock, salt spray, rain, dust, weathering, altitude and other simulated-environment systems.

Before relying on a published document, compare it with the exact chamber model, working range, controller, electrical configuration, safety options and destination-market requirements stated in the quotation.

Quality ManagementReview the certified organization, audited scope and validity.
Product ConformityMatch directives, standards and listed chamber models.
Calibration & InspectionConfirm parameters, ranges, dates and identified equipment.
FAT & Technical FilesDefine the records required for the ordered configuration.

Scope notice: a quality-management certificate is not product approval, and one model-specific document does not automatically apply to every DERUI chamber.

Published quality and engineering records

Review the visible document details first, then confirm whether the scope applies to the chamber model, configuration and destination market in your project.

Seven published documentsOne quality-management certificate, five environmental-simulation patents and one trademark registration.
DERUI ISO 9001 quality management system certificate for environmental simulation testing equipment
Quality management

ISO 9001 Quality Management System

This certificate identifies the audited organization and its quality-management scope. It supports review of DERUI's management system, but it is not a product approval for every chamber.

Organizationشركة قوانغدونغ ديروي لمعدات الاختبار المحدودة.
Registration No.12825Q20832R0S
المعيارGB/T 19001-2016 / ISO 9001:2015
IssuedJune 24, 2025
Valid untilJune 23, 2028
Published scopeProduction and sales of simulation environment testing equipment
View Certificate Image →
DERUI invention patent certificate for cold-balance oil-return environmental simulation equipment
Invention patent

Cold-Balance Oil-Return Environmental Simulation Equipment

ZL 2022 1 1262299.9

Authorization announcement: CN 115468590 B

Granted July 9, 2024

View Patent Image →
DERUI utility model patent certificate for explosion and fire-suppression device
Utility model

Explosion and Fire-Suppression Device

ZL 2022 2 3167352.5

Authorization announcement: CN 218674674 U

Granted March 21, 2023

View Patent Image →
DERUI utility model patent certificate for cold-balance oil-return equipment
Utility model

Cold-Balance Oil-Return Equipment

ZL 2022 2 2711402.5

Authorization announcement: CN 218511777 U

Granted February 21, 2023

View Patent Image →
DERUI utility model patent certificate for energy-saving environmental simulation equipment
Utility model

Energy-Saving Environmental Simulation Equipment

ZL 2022 2 2741142.6

Authorization announcement: CN 218512345 U

Granted February 21, 2023

View Patent Image →
DERUI utility model patent certificate for electronic expansion-valve energy-saving control
Utility model

Electronic Expansion Valve Energy-Saving Control

ZL 2022 2 2741884.9

Authorization announcement: CN 218271418 U

Granted January 10, 2023

View Patent Image →
DERUI trademark registration certificate number 62004215
Trademark

DERUI Trademark Registration

Registration No. 62004215

Class 9 · Registered October 7, 2022

Valid through October 6, 2032

View Registration Image →

Scope notice: patents document specific inventions and do not prove that every feature is installed on every chamber. Confirm the ordered model, configuration and applicable conformity or calibration files separately.

Product conformity by model

EMC and LVD Documents by Environmental Chamber Model

Use the model number—not only the product-family name—to identify a relevant conformity document. Final applicability must be checked against the ordered controller, voltage, safety configuration and destination market.

Published model list 01

Temperature & Humidity Test Chambers

Documents published for the model references shown below.

DR-H201DR-H202DR-H204
EMC 2014/30/EUElectromagnetic compatibility documentYRT202601538C
LVD 2014/35/EULow-voltage directive documentYRT202601539C

Published issue date: February 2, 2026

Check before use: exact model, controller, voltage, supplied configuration and destination-market requirement.

Published model list 02

Salt Spray Test Chambers

Documents published for the model references shown below.

DR-H304DR-H304-F
EMC 2014/30/EUElectromagnetic compatibility documentYRT202603164C
LVD 2014/35/EULow-voltage directive documentYRT202603165C

Published issue date: March 24, 2026

Check before use: chamber version, controller, electrical configuration, test accessories and destination-market requirement.

Project-specific verification

Other Environmental Chamber Families

The following equipment families require document confirmation for the exact model and ordered configuration.

Status: verify before quotation.
No conformity certificate number is claimed here without a matching published document.

Verification required

Thermal Shock Chambers

Confirm the transfer system, refrigeration configuration, controller, voltage and applicable model documents.

Verification required

Rain & IP Test Chambers

Identify the IP method, pump and spray configuration, electrical system and exact chamber model.

Verification required

Dust Test Chambers

Check dust circulation, vacuum system, electrical configuration and the model listed on the requested file.

Verification required

Altitude & Battery Chambers

Review low-pressure, battery-safety, ventilation, protection and destination-specific documentation separately.

Need the Documents for a Specific Chamber?

Send the model, voltage, configuration, destination country and required directive or purchasing-document list.

Request Model-Specific Documents →
Calibration, inspection and acceptance

Choose the Document That Proves the Required Chamber Performance

A calibration certificate, factory inspection record and factory acceptance test answer different questions. Define the evidence required by the laboratory, purchasing specification or customer audit before the chamber is built.

Do not request “a certificate” without a scope.State the parameter, range, method, load, tolerance, issuing organization and required delivery stage.
01

Calibration Certificate

Records measurement results for identified functions, ranges, sensors and a specific calibration date.

Define before ordering

  • Temperature and humidity parameters
  • Required setpoints and operating ranges
  • Empty or loaded chamber condition
  • Sensor positions and measurement points
  • Required laboratory or accreditation
  • Certificate language and due date

Limit: calibration results apply to the identified equipment and stated conditions; they do not automatically prove every performance claim.

02

Factory Inspection Record

Documents manufacturing and functional checks completed for the ordered chamber before release.

Recommended checks

  • Ordered model, dimensions and configuration
  • Controller, sensors and electrical system
  • Heating, cooling and humidification functions
  • Alarm, interlock and protection logic
  • Doors, seals, feedthroughs and drainage
  • Serial number and inspection status

Limit: a factory record should identify the inspected unit. A generic checklist is not evidence for a different serial-numbered chamber.

03

Factory Acceptance Test

Compares the ordered chamber with an agreed acceptance protocol before shipment.

Agree the protocol

  • Test method and measurement basis
  • Temperature or humidity profile
  • Representative load and fixture
  • Ramp, recovery, dwell or transfer definitions
  • Data interval and allowed tolerance
  • Witnessing, report and deviation handling

Limit: empty-chamber FAT results should not be represented as loaded performance unless the agreed test includes the specified load.

Environmental Chamber Verification Matrix

Match the purchased chamber function with measurable evidence and a clearly defined test condition.

Acceptance basis:
ordered configuration + written method + agreed condition + identified instrument + recorded result.

Performance areaWhat should be definedPossible evidence
Temperature performanceSetpoints, deviation, fluctuation, uniformity, sensor layout and stabilization ruleCalibration results, mapping report or agreed FAT data
أداء الرطوبةValid temperature-humidity envelope, setpoints, deviation, water and stabilization conditionsHumidity calibration or mapping results under stated conditions
Heating and coolingStart/end points, chamber state, load, ambient condition and rate calculationRecorded profile and calculation in the acceptance report
cURL Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limitsZone conditions, basket load, transfer start/end, recovery, dwell and cycle countTransfer record, zone data and representative loaded-cycle report
IP, dust or salt sprayMethod, nozzle or dust/salt condition, pressure/flow, duration and specimen arrangementFunctional inspection, instrument records and project-specific FAT
Safety functionsAlarm thresholds, interlocks, emergency stop, ventilation and optional protection systemsInspection checklist, alarm test and ordered safety-function record

Write the Required Evidence into the Technical Agreement

Specify which records must be supplied with the quotation, before shipment and with the final equipment documentation.

Document availability, issuing body, cost and delivery time must be confirmed for the exact project.
From assembly to documented delivery

How DERUI Builds the Quality Record for Each Test Chamber

Certificates describe a management or conformity framework. Project records show how the ordered chamber was assembled, inspected, tested and prepared for delivery. Agree the required checkpoints and documents before production.

Five evidence stagesAssembly · safety verification · measured performance · factory acceptance · final delivery records.
DERUI environmental test chamber refrigeration system assembly and component inspection
01

Assembly Records for the Ordered Chamber

Production checks should identify the chamber model and ordered configuration, then follow the enclosure, refrigeration, heating, humidity and electrical systems through assembly.

Working-space construction, door, seal, window and feedthroughs
Refrigeration, heating, humidification and circulation components
Controller, sensors, wiring and ordered electrical configuration
Selected accessories and project-specific options

Possible record: assembly checklist, component verification and configuration record.

DERUI environmental test chamber controller and functional testing in the workshop
02

Controller, Alarm and Safety-Function Checks

Functional inspection should confirm the supplied controller, measurement channels, alarm thresholds, protection devices and any project-specific safety options.

Program operation, sensor display and data functions
Over-temperature and electrical protection
Refrigeration alarms, interlocks and emergency stop
Optional ventilation, detection or suppression functions

Possible record: electrical inspection, alarm sequence and safety-option verification.

DERUI environmental test chamber sensor placement for temperature performance mapping
03

Measured Performance Before Release

Every result should be connected to a stated condition. Record the sensor layout, chamber state, load, setpoints, stabilization rule, measurement interval and allowed tolerance.

Temperature deviation, fluctuation and uniformity
Humidity performance within the valid operating envelope
Heating, cooling, recovery or transfer definitions
Empty or representative loaded test condition

Possible record: mapping data, recorded profile and calibration certificate when specified.

DERUI environmental test chambers undergoing factory functional and acceptance testing
04

Acceptance Against the Technical Agreement

The FAT should compare the completed chamber with the agreed specification and acceptance protocol. Any deviation and corrective action should be recorded before shipment.

Model, dimensions, controller and ordered options
Agreed temperature, humidity or environmental profile
Test load, measurement method and acceptance tolerance
On-site, remote or document-based witnessing

Possible record: FAT protocol, test-data report, deviation log and acceptance record.

DERUI test chamber nameplate manufacturing number and final inspection label
05

Final Identification and Delivery File

Before release, connect the physical chamber and supplied accessories with its serial number, inspection status, manuals, drawings and agreed project records.

Nameplate, serial number and final appearance
Accessories, spare parts and packing list
Manuals, electrical drawings and document index
Packing protection and shipment identification

Possible record: final inspection checklist, packing list and project document package.

Historical third-party calibration record

DR-H202 Environmental Chamber Calibration Certificate

This three-page record identifies a DERUI-manufactured constant temperature and humidity chamber, the calibration basis, reference instruments, sensor layout and recorded temperature-humidity results.

Document details
Model: DR-H202
Certificate No.: 1023CT1000572
Approved: 24 April 2023
Issued by: Henan Institute of Metrology
DR-H202 environmental chamber calibration certificate identification page issued by Henan Institute of Metrology
Certificate page 1 of 3

Chamber Identification and Certificate Information

Shows the applicant, instrument name, model DR-H202, serial number, DERUI as manufacturer, issuing organization and approval date.

DR-H202 chamber calibration basis environmental conditions and reference instrument records
Certificate page 2 of 3

Calibration Basis and Reference Instruments

Records the calibration reference, site conditions, calibration date, measurement ranges and traceability information for the instruments used.

DR-H202 chamber calibration sensor layout temperature humidity deviation uniformity and fluctuation results
Certificate page 3 of 3

Sensor Layout and Recorded Calibration Results

Displays the measurement-point arrangement and recorded temperature and humidity deviation, uniformity, fluctuation and uncertainty results.

Scope and validity notice: this certificate was approved in 2023 and is displayed as a historical project record, not as evidence of current validity or coverage for every DERUI chamber. Current calibration documents, scope and measurement points depend on the ordered model and project requirements.

Evidence rule: use photographs and records from the actual DERUI process. Do not present a generic factory image as proof of calibration, FAT or third-party certification.

Define the Required Quality Records Before Production

Send the chamber model, test method, acceptance conditions and purchasing-document list for a project-specific review.

Request a Quality Document Review →
Certificate and quality-document questions

Confirm the Evidence Required for Your Test Chamber

Document requirements differ by chamber model, configuration, purchasing specification and destination market. Use these answers to prepare a precise request before quotation.

Fastest route to a useful answerSend the exact model, test method, voltage, destination and required document list—not only the word “certificate.”
Does ISO 9001 certify every DERUI test chamber?

No. ISO 9001 identifies the certified organization and quality-management scope. It is not model-specific product approval. Review conformity, calibration and inspection documents separately for the ordered chamber.

How do I confirm whether an EMC or LVD document covers my model?

Check the product name, exact model list, directive, referenced standards, certificate number and issuing details shown on the document. Then confirm the controller, voltage and ordered configuration with DERUI.

Can a calibration certificate be supplied with the chamber?

Availability must be confirmed for the project. State the required parameters, ranges, setpoints, sensor positions, accredited laboratory or issuing body, certificate language and delivery stage before quotation.

What is the difference between calibration and FAT?

Calibration records measured results for identified functions and conditions. FAT compares the completed chamber with an agreed technical and acceptance protocol. One document does not automatically replace the other.

Can the chamber be tested with a representative specimen load?

It can be requested when practical, but the specimen dimensions, mass, heat output, fixture, operating state, sensors and acceptance limits must be agreed. Empty-chamber results should not be represented as loaded performance.

What information is needed for a document review?

Provide the chamber type and model, test standard, working range, specimen information, voltage, selected safety options, destination country, required certificates or records and the review deadline.

Request a Certificate and Quality-Document Review

Define the equipment and purchasing requirement so the available compliance, calibration, inspection and FAT records can be checked against the actual project.

Chamber type and model
Test method and range
Voltage and configuration
Destination market
Required document list
Review or delivery deadline

Document availability, applicability, issuing body, cost and delivery timing must be confirmed for the exact chamber and project.

Request a Document Review →

Accuracy notice: published certificates and patents should be read according to their visible holder, number, scope, model list and validity. Do not assume that one document applies to every DERUI product.

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شركة ديروي لمعدات الاختبار ملتزمة دائمًا بتقديم حلول تكنولوجيا الاختبار الدقيقة والموثوقة للتطوير الصناعي العالمي، وتعمل في تصميم وتصنيع معدات اختبار عالية الجودة مثل معدات اختبار الورق والتعبئة، وتشمل منتجاتنا الرئيسية حجرة اختبار بيئية و حجرة اختبار المناخ

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عنوان الشركة: الطابق الأول، رقم 3، شارع شوغانغ، بلدة هونغمي، مدينة دونغقوان، مقاطعة قوانغدونغ، الصين

رقم الاتصال: 0769-81330059

واتساب: +86 135 2795 8363

البريد الإلكتروني: shirley@deruitest.com

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