Desktop Temperature Humidity Chamber | Benchtop Climate DERUI

Published Model	DR-H201/22/40
Workspace	22 L · 300 × 300 × 250 mm
Published Temperature	-40°C to +150°C
Published Humidity	30% to 95% RH
Controls & Records	7-inch touch controller, programme and curve display, USB export
Before Quotation	Confirm specimen size, powered load, profile, data record and local utilities

Compact Laboratory Climate Simulation

Desktop Constant Temperature and Humidity Test Chamber

Use a compact DERUI climate chamber for small specimens, component development and laboratory environmental conditioning. The published DR-H201/22/40 baseline combines programmable temperature and humidity control in a 22 L workspace. Final range, capacity and utilities follow the approved technical proposal.

Engineering basis: desktop footprint does not define loaded performance. State the specimen envelope, fixtures, powered heat, required profile and data records before selecting the configuration.

Published model baselineDR-H201/22/40

Published workspace22 L · 300 × 300 × 250 mm

Published temperature range-40°C to +150°C

Published humidity range30% to 95% RH

Where a Desktop Climate Chamber Fits

The compact chamber supports component-level environmental conditioning where laboratory space is limited and specimen size allows airflow to remain clear. It is selected from the required exposure, not merely from a volume label.

Electronic assemblies

Condition PCBs, connectors, control modules, sensors and compact assemblies under defined temperature-humidity programmes.

Materials and research

Run controlled damp-heat exposure, comparative ageing and conditioning studies with documented specimen placement.

Small product development

Evaluate packaged components and small devices before moving to a larger floor-standing chamber for batch or fixture-heavy testing.

Published DR-H201/22/40 Configuration

Item	Published value	Procurement note
Workspace	22 L; 300 × 300 × 250 mm	Confirm usable volume after racks, fixtures and cable routing.
Temperature range	-40°C to +150°C	Confirm the selected configuration, test condition and mapping method.
Temperature performance	Fluctuation ±0.3°C; uniformity 2.5°C	Confirm stabilization condition, sensor points and whether the item is powered.
Temperature change	Heating 3.0°C/min; cooling 1.0°C/min	Confirm definition, ambient condition and loaded performance.
Humidity performance	30% to 95% RH; fluctuation ±3.0% RH	Confirm the valid combined temperature-RH operating envelope.
Controls and records	7-inch touch panel, programme and curve display, USB export	State record interval, file format and report requirements.
Port and observation	Φ50 mm test hole; heated double-layer observation window	Confirm port quantity, cable sealing and fixture layout.

How the Climatic Control System Supports a Test

Control air temperature

Heating and refrigeration establish the programmed chamber-air temperature and transition rate.

Regulate moisture

Humidification and dehumidification maintain relative humidity within the selected operating envelope.

Distribute and record

Air circulation and controller records support a documented exposure across the usable workspace.

Powered specimens: live heat can affect cooling response and humidity control. Provide maximum watts and duty cycle before the refrigeration configuration is confirmed.

Published Chamber and Control Features

Chamber construction

The current page lists a SUS304 stainless-steel inner chamber, cold-rolled painted outer enclosure, glass-fibre insulation and silicone door seal.

Racks and access

The listed configuration includes two adjustable stainless sample racks and a Φ50 mm test port with thermal insulation accessories and sealing plug.

Controller functions

The published 7-inch touch controller supports temperature-humidity programming, curve display, alarm indication and USB data export.

DERUI Desktop Chamber Reference Image

DERUI desktop constant temperature and humidity test chamber for laboratory environmental testing

Current DERUI product image. Final controller, ports, shelving and utilities follow the approved configuration.

Loading and Operating Discipline

Maintain airflow clearance

Keep specimen supports and fixtures clear of air supply and return paths; nominal volume is not usable loaded space.

Seal cable entries

Close unused cable-port area to limit ambient air and moisture leakage that can disturb the exposure.

Confirm water requirements

Follow the approved manual for water quality, feed arrangement, drainage and humidifier maintenance.

Define dwell start

State whether exposure begins at controller setpoint or after specimen sensors reach stabilization.

Record the loaded state

Document mass, location, fixture, powered operation and interfaces for repeatable later cycles.

Verify the procedure

Confirm standard edition, profile, monitoring and acceptance criteria before treating a cycle as compliance evidence.

Map the Chamber to the Test Procedure

The test standard and product specification define the programme. The chamber must cover every required setpoint, transition, dwell and tolerance in its selected configuration.

Reference	Typical use	Confirm before testing
IEC 60068-2-30	Cyclic damp heat	Edition, cycle, transitions, condensation and recovery.
IEC 60068-2-78	Steady-state damp heat	Temperature, RH, duration, stabilization and evaluation.
MIL-STD-810H Method 507.6	Tailored humidity exposure	Procedure, climatic cycle, specimen operation and acceptance criteria.
JESD22-A101 / A100	Electronic-device moisture testing	Applicable method, bias interfaces, safety and monitoring.

RFQ and FAT Checklist

Topic	Information to provide or verify
Specimen	Dimensions, mass, quantity, fixtures, material and powered heat.
Profile	Temperature-RH points, transitions, dwell, cycles and tolerances.
Interfaces	Ports, power, signals, thermocouples, network and data records.
Utilities	Voltage, frequency, current, water quality, drainage and ambient limits.
FAT	Sensor map, stabilization, deviation, uniformity, alarms and report format.
Documents	Approved drawing, bill of materials, manuals, electrical diagram and agreed calibration scope.

Frequently Asked Questions

What is the published baseline workspace?

The current parameter table lists DR-H201/22/40 with a 22 L workspace measuring 300 × 300 × 250 mm. Confirm other capacities on their approved drawings.

What temperature and humidity ranges are published?

The 22 L parameter table lists -40°C to +150°C and 30% to 95% RH. The final configuration and usable envelope must be confirmed in the quotation.

Can the chamber record a test profile?

The published 7-inch touch controller supports programme input, curve display and USB export. Confirm record interval, file format and evidence requirements before procurement.

Can I test powered electronics inside?

State heat dissipation, duty cycle, cables and safety requirements in advance. The permitted loaded performance must be agreed for the actual configuration.

Which standards can it support?

The page references GB 5170 and older IEC 60068 equivalents. Specify the exact current standard edition and programme; equipment capability alone does not claim compliance.

What should I send for a quotation?

Send specimen dimensions, mass, quantity, live heat load, profile, cable needs, site utilities, data requirements and target method.

Configure a Compact Climate Chamber from the Real Test

Send the specimen drawing, temperature-humidity programme, powered load, test standard and data requirements. DERUI can confirm workspace, environmental range, controller records and installation details in the technical proposal.

Request a Desktop Chamber Proposal

Model		DR-H201/22/40
System		Balance temperature and humidity control system(BTHC)
Volume		22L
Load capacity		20KG
Inner dimension W×H×D mm		300×300×250
External dimension W×H×D mm		440×740×780
Temperature Performance	Temperature range	-40～＋150℃
	Temperature fluctuation	±0.3°C
	Temperatrue unifomity	2.5°C
	Temperature change rate	Heating rate：3.0°C/min Cooling rate：1.0°C/min
	Extreme temperature arrival time	Heating time：from -40 ＋150℃ 60 min Cooling rate：+20 to -40°C 50 min
	Allowable heat load	Temperature of test area+20°C ， 300 W
Humidity performance	Humidity range	30～95%rh
	Humidity fluctuation	±3.0%rh
	Allowable heat load	Test area conditions：+85℃ / 85%rh 300W
Strcurure	External material	1.5mm thick FC advanced electrolytic plate + spray anti-corrosion
	Internal material	1.2mm thick SUS304 stainless steel
	Water supply system (standard configuration)	Automatic water supply
	Water tank(Optional)	8 L
	Refrigerantion system	Mechanical single-stage compression cooling
	Compressor	Full-Closed Compressor
	Refrigerant	R-404A [R-449A available on request]
	Power	0.65 kW
	Extension mechanism	Electronic expansion valve
Noise level		60dB

Q: What is a desktop constant temperature and humidity test chamber?
A: It is a compact environmental testing device used to simulate precise temperature and humidity conditions for testing small products or samples.
Q: How does it control temperature and humidity?
A: It uses a refrigeration system for cooling, heaters for heating, and a humidification/dehumidification system to maintain specific humidity levels.
Q: What are its typical applications?
A: Commonly used for testing electronics, pharmaceuticals, batteries, materials, and cultural relics in research labs and production lines.
Q: What is the standard temperature range?
A: Typically -20°C to +150°C, with some models offering -40°C to +180°C.
Q: What humidity range can it achieve?
A: Generally 20% to 98% RH, with some models supporting 10% to 98% RH.
Q: How accurate is the temperature control?
A: Usually ±0.5°C or better at stable state.
Q: What about humidity control accuracy?
A: Typically ±2.5% RH or better.
Q: What power supply does it require?
A: Most models operate on standard AC 220V/50Hz or 110V/60Hz power.
Q: How much space does it need?
A: As a desktop unit, it typically requires less than 1m² of bench space.
Q: What interface options are available?
A: Most modern units feature touchscreen controls and support USB/RS485/Ethernet connectivity.
Q: How often should it be calibrated?
A: Recommended annually or every 6 months for critical applications.
Q: What maintenance does it require?
A: Regular cleaning of filters, checking refrigerant levels, and cleaning humidity sensors.
Q: Can it program complex test cycles?
A: Yes, most models support multi-segment programming for complex temperature/humidity cycles.
Q: What safety features are included?
A: Typically include over-temperature protection, dry burning protection, and compressor delay protection.
Q: How to choose the right model?
A: Consider sample size, required temperature/humidity range, accuracy needs, and available bench space.