Walk-In Temperature (& Humidity) Chamber
E Series / High-Power Series

CAT.NO.E20124-Y2304

Walk-In Chambers―
Reborn to meet demand on a global scale
Walk-In Temperature (& Humidity) Chambers are used for testing construction
materials and electronics fields as well as used in a wide range of research anddevelopment related to people and the environment.
They require high performance that can satisfy strict reliability tests for vehicles andother applications.
The High-Power Series was developed as a test chamber capable of withstanding evenmore demanding environmental tests.
It covers specialized automobile industry international standards for the latest
technologies, including an expanded temperature control range, support for rapid
temperature changes and high heat-generating loads, standards prescribed for Europe,and advance evaluations during the product development and design phase.

1

● Chamber construction

E Series compatible

High-Power Series compatible

Test chambers

Refrigerators

Air conditioners

For control

2.20 kW 3.70 kW
ACU10E ACU20E

ACU30E

ACU45EWith heat load control

5.60 kW
ACU30E
ACU45E
High-Power Series High-Power Series

ACU50E
High-Power Series

Type 1
4.2 m3

Type 2
8.1 m3

Type 312.5 m3

Type 625.8 m3

Type 834.8 m3

Type 1043.8 m3

Type 416.8 m3

7.46 kW

11.19 kWType 1252.7 m3* These are example air conditioners and test chambers.

Starting from P.15 〜18

Case study

A variety of weather environment factors can be combined according to the test purpose to create the environmental conditions.

Temperature

HumidityAirpressure

5G/IoT

Atmosphericcomposition

Rain

Snow

Secondarybatteries

VehiclesPersons

Fog

Pharmaceuticals

Airflow,wind

Illuminance,
sunlight

Noise

Vibration

Construction
materials
Foodproducts

2

E Series
Achieving both energy savings and high accuracy● Power consumption comparison(Example) Model: EBL-4E
・Temperature & humidity control
Operating conditions

2.00

4.00

Previous series
E Series

Power consumption (kWh)
6.00
8.00

10℃ / 50％rh
20℃ / 30％rh
20℃ / 80％rh
40℃ / 95％rh

Energysavings rate

60% max.

High-precision cooling systemthat induce energy-saving(Japanese patent No. 5427211)
ESPEC has developed unique control
systems including a wide-range
refrigeration control systemcomposed of a DC inverter and anelectronic expansion valve thatminimizes the required refrigerator
power, and an active map system thatcan control and operate multiple
refrigerators with minimum power
consumption. Compared to previous
models, this achieves energy savingsof up to 60% together with highprecision refrigeration capacity.

Reduced power supply
requirement!

The cross-output control limits the
maximum current of the heater andthe humidifier, thereby reducing therequired power supply capacity.
Panel construction

On-site assembling
A chamber is assembled and installed
on-site from panels, air conditioning
unit and relating components.

The low floor structure foreasy handling heavy items

Easy to move in and out for large or
heavy samples via double swing door
and loading ramp.
Double swing door (option)

Low GWP Refrigerant

R-449A is available on request.

3

Loading ramp (option)

E Series−40 to +80°C / 10 to 95%rh
Temperature & humidity chambers

Model

EBE

EBL

EBR

Refrigeration system

EBUU

Balanced Temperature Control system(BTC system)

5 to 40°C / 75%rh−40 to +80°C(–40 to +176°F)

Temp. range*²
Performance*1

EBU

Single-stage refrigeration system, air-cooled condenser or water-cooled condenser

Allowable ambient conditions

Main unit (Panel assembly)

EBF

Balanced Temperature and Humidity Control system(BTHC system)
Vapor pressure divide control system

System−30 to +80°C(–22 to +176°F)

10 to 95%rh(at +10 to +80°C)

Humid. range*²
Temp. / Humid.
fluctuation*³
Temp. variation in
space*³
Temperature rate ofchange (Pull down)*³
Temperature rate ofchange (Heat up)*³−10 to +80°C(+14 to +176°F)−40 to +80°C(–40 to +176°F)−30 to +80°C(–22 to +176°F)

20 to 95%rh(at +20 to +80°C)−10 to +80°C(+14 to +176°F)—±0.5°C / ±4%rh±0.5°C
2.5°C
0.4°C/min
1°C/min

Exterior material

Color coated steel

Interior material

Stainless steel
Equal load distribution: 6 kPa (600 kgf/m2)

Floor load capacity
Door

Single door W850 x H1800 mm

Insulation material

Urethane foam
Air circulator, heater, humidifier, refrigerator,
evaporator, temperature sensor, humidity sensor

Air conditioner
Refrigerant

R-404A [Air circulator, heater, refrigerator, evaporator,
temperature sensor

Low GWP Refrigerant

R-449A]

Viewing window (W180 x H289 mm), Cable port (inner diameter 50 mm), Room lamp (LED),
Ventilation, Ethernet port (LAN port), USB memory port, External output terminals

Fittings
Utility requirements

Temperature chambers

200V AC 3φ 50/60 Hz
220V AC 3φ 50 Hz

Power supply

380V AC 3φ 50/60 Hz● フロストフリー拡大（オプション）による温湿度制御範囲

400V AC 3φ 50/60 Hz*1: Figures are for when ambient temperature is +5 to +32°C, cooling water temperature is +25 to +32°C, and there is no load and no specimen.
*2: The performance values are performances at the temperature sensor and humidity sensor (installed on the blow out of the air conditioner).
*3:	The performance values are based on to IEC 60068-3-6:2001 (EBE, EBL, EBR), IEC 60068-3-5:2001 (EBF, EBU, EBUU).

Temperature and humidity control range (E Series)【Option】 OP : Frost-free expansion（Low humidity equipment）

95

95

100

100

80

80

60

60

︵ %rh
︶
Humidity︵ %rh︶
Humidity【Standard】

40
20

Totally Frost-Free

40
20

OP
0

10

20

30

40
50
60
Temperature（℃）
EBL
Frost-free range
EBE

70

80

90

EBR
EBE cascade*Frost-free range is above ＋15℃ during operation.

0

10

20

30

40
50
60
Temperature（℃）
EBL
Frost-free range
EBE

70

80

90

EBR

* Yellow area is optional extended low humidity control range formodel EBL and EBE. The entire humidity range can be
frost-free(shaded area).

4Outline size
Test chamber (Inside dimensions)Type 2Type 3

unit：mm

Type 4

2100

2100

2100

2100

Type 1

8.0m2
5.9m2

3.9m2

2.0m2

4070
1020

1970

1970

3020

1970

1970

Type 82100

2100

Type 61970

16.6m212.3m2

4070

4070

4070

3020

Type 12

2100

2100

Type 1025.1m220.8m2

6170
5120
4070

4070

Air conditioner (Outside dimensions)
unit：mm

1985

640

5

ACU30

2230

ACU20

2080

ACU10

1750

1095

1850

1095

2220

Installation Simulation Tool (AR [Augmented Reality])
Read the QR code with a smartphone or tablet camera to start the web browser.*1
View the intended installation location (a floor) through the camera to check the installation image in the web browser.*2

Real-world information

Digital information*This AR is an image.

Combination example of test chamber external view with door open and air conditioner *3 *4Type 1＋ACU10Type 2＋ACU10Type 3＋ACU10

Type 6＋ACU20Type 4＋ACU10

Type 8＋ACU20Type 10＋ACU30

Type 12＋ACU30*1 This service is designed specifically for use on smartphones. It will also work on some tablets. Operation has been confirmed in the Safari and Google Chromebrowsers.Use the camera function of your smartphone or tablet to read the 2D codes.
Recommended environment• OS: iOS 14 or higher, Android 9.0 or higher• Browser: Safari (latest version), Google Chrome (latest version)• Even if you meet the above conditions, this service may not operate normally on your terminal.

• Not all Android terminals support AR. For details on terminals that support AR, access the following URL.
https://developers.google.com/ar/devices?hl=en*2 Precautions

Check available
devices• These contents can be used free of charge, but you will be charged communication fees to access them.

• Possible causes for the contents not being displayed properly include the camera capturing a location with no flat surfaces, objects being present on
the flat surfaces, and insufficient brightness in the location.

• This service may not operate properly due to the communication environment.

• Before using AR to capture images, thoroughly check the surrounding area to make sure it is safe.
*3 Initially, models are displayed with roughly their actual sizes. Stretch and pinch to change the dimensions of displayed models.
Use this service only as a reference. It does not provide any guarantees for actual installation of chambers.

*4 The product image displayed in AR is temperature and humidity type.

For temperature type (EBUU, EBU, EBF), the controller displays and sensor sections are different from the image.

The combination of the test chamber and the air conditioner unit is an example, and the air conditioner unit changes depending on the performance.

6High-Power Series
Support for high stress test with large capacity of chamber maximum 170 m3!
Possible to control from ultra-low

Temperature range (°C)
150

temperature −70 to +150°C

Tests can be performed to simulate
everything from super-cold environments
to high-temperature environments suchas mid-summer car interiors and bonnet.

80

High-Power Series

E Series−70 to +150°C
Up to 170 m 3 *−40 to +80°C
Up to 52.7 m 30* Temperature control with 170 m3 is −30 to+80°C. Please contact to your sales fordetails of specification.

–40
–70
4.2

52.7

120

170 Capacity (m 3)Comparison of temperature transition times (Type 12, 52.7 m3)
Temperatureheat-up timeHigh-Power Series

80

E Series

Temperaturepull-down time
80

40
20
0
-20

-40

E Series

60
Temperature (℃)

Temperature (℃)

60

High-Power Series

10

20

30 40 50
Time (min)

60

70

20

Heat-up time
T1

0

-40

IEC 60068-2-14Nb

90%

0

50 100 150 200 250 300 350 400
Time (min)Temperature and Humidity
ISO 16750-4 5.6.1
IEC 60068–2–30

LV 124 K-01
LV 124 K-02
LV 124 K-04
ISO 16750-4 5.2

4°C/min3°C/minΔt

Minimum 10%
temperature 0%

Conforms to IEC 60068-3-5:2001

ISO 16750-4 (5.3)
LV 124 L-03

Pull-down timeT2

Maximum 100%
temperature

Conforming test standards
Temperature

Even though chamber has large space
170 m³, chamber controls temperature,humidity but also rapid temperaturetransition.

Temperature rate of change
3°C/min (E series: 0.4°C/min)

40

-20
0

Reducing time by rapidtransition time

ISO 16750-4 5.6.3
LV 124 K-08

IEC 60068-2-38
PV 1200
PV 2005
PR 308.2
IEC 60068-2-78
ISO 16750-4 5.7
LV 124 K-14
TP 303.5 a, b, c, d

ISO 16750-4 5.6.2
LV 124 K-09

Temperature Δt=
heat-up rate
T1

TemperatureΔt=pull-down rate T2

Expressed as the rate of change (between 10% and 90%) per
minute of the atmosphere at the center of the chamber.

Allowable heat load 13 kW at−40°C

It is possible to test during theelectronic device or high heatgenerating specimens such as
automobile motors in lowtemperature environments. The widelineup of air conditioners allows for
greater heat-generating loads invarious applications.

Conforms to global
automobile test standards

These products conform to the
ISO 16750 international standard
that is widely used for global
procurement of vehicle devices andcomponents, and also to the LV 124
standard created by European
automobile manufacturers.

7

High-Power Series
Model

System−70 to +150°C / 20 to 95%rh

Temperature & humidity chambers

Temperature chambers

EBE

EBF

Balanced Temperature and Humidity Control system(BTHC system)
Vapor pressure divide control system

Balanced Temperature Control system(BTC system)

Refrigeration system

Water-cooled cascade refrigeration system
5 to 40°C / 75%rh

Temp. range*²−70 to +150°C

Performance*1

Allowable ambient conditions

Humid. range*²

20 to 95%rh(at +20 to +80°C)—

Temp. / Humid.
fluctuation*³±0.5°C / ±4%rh±0.5°C−70 to −41°C, +81 to 150°C: 5.5°C

Temp. variation in
space*³−40 to +80°C: 2.5°C

Main unit (Panel assembly)

Temperature rate ofchange (Pull down)*³
Temperature rate ofchange (Heat up)*³

3°C/min4°C/min

Exterior material

Color coated steel

Interior material

Stainless steel
Equal load distribution: 6 kPa (600 kgf/m2)

Floor load capacity
Door

Single door W850 x H1800 mm

Insulation material

Air conditioner
Refrigerant
Fittings

Urethane foam
Air circulator, heater, humidifier, refrigerator,
evaporator, temperature sensor, humidity sensor

Air circulator, heater, refrigerator, evaporator,
temperature sensor

7.5 kW cascade R-449A + R-23, 15 kW cascade R-449A + R-508A
Viewing window (W180 x H289 mm), Cable port (inner diameter 50 mm), Room lamp (LED),
Ventilation, Ethernet port (LAN port), USB memory port, External output terminals

Utility requirements

200V AC 3φ 50/60 Hz
Power supply

*1:
*2:
*3:

Figures are for when ambient temperature is +5 to +32°C, cooling water temperature is +25 to +32°C, and there is no load and no specimen.
The performance values are performances at the temperature sensor and humidity sensor (installed on the blow out of the air conditioner).
The performance values are based on to IEC 60068-3-6:2001 (EBE), IEC 60068-3-5:2001 (EBF).

220V AC 3φ 50 Hz
380V AC 3φ 50/60 Hz
400V AC 3φ 50/60 Hz

To minimize our chambers potential environmental impact

64%
Reduction

R-449A is the best alternative to R-404A
R-404A

GWP

3920

R-449A

GWP

1397*R-449A is available on request

8

Controller
N-Instrumentation

10.4-inch large-screen touch panel that allows intuitive operation
A variety of program settings
40 profiles (up to 99 steps per profile) canbe registered for programmed operation,and 3 profiles for constant operation.

Output of trend-graph data
The setting and measured data are shown ina graph. The data can be recorded ininternal memory or recorded directly to USB
memory, and backups can also be created.
The scale for temperature, humidity, andtime in the display can be zoomed in and out.

Reminder function
The display shows chamber status, such as
during defrosting or automatic humidifying
water replacement is in progress. The INFO
icon notifies the user of the timing forhumidifier or CFC inspection. The necessary
times and items can be set, improving theconvenience of chamber management.
● E-mail alert

Email server

Ethernet

Function for recovery after a
power failure

The user can select either “turn OFF
power” or “continue operation” whenrecovery occurs after a power failure.

Intranet(company LAN)

Multi-language display

Walk-In Chamber

PC

Mobile phone
Smartphone

The display language can be easily changed
from Japanese to English, Chinese(simplified or traditional), or Korean.
Select the appropriate language for use.

Test profile edit and copy

It is possible to edit the test profiles
registered in the chamber using a PC
web browser. They can also be copied toa different chamber using USB memory.

Test profile copy and PC edit

Copy
Walk-In Chamber

Walk-In Chamber

Edit

9

USB memory port

Network* Setting up intranet is required.

Remote monitoring improves test management efficiency and allows
trouble to be identified and corrected at an early stage.
Editing of test profiles

E-mail alert(Option: Remote control function)

Email server

It is possible to use a PC web browser to edit
the test profiles registered in the chamber,start and stop operation, and perform othercommunication with the chamber.

Ethernet

Recording temperature andhumidity settings andmeasurements

Intranet(company LAN)

Walk-In Chamber

By saving data (at an approximately 30
second cycle) in internal memory andaccessing it from a PC, it is possible todisplay a graph showing up to 100 daysof data in the browser. It is also
possible to download the data to the
PC in CSV format (comma delimiter).

PC

When an alarm is triggered, an email is sent to the registered PC ormobile address.
* Connection to a mail server is required to use e-mail alert.

.

Download test profiles
Via the Pattern Manager Lite
software installed on your PC, edit
programs according to your testingneeds.

Mobile phone
Smartphone● Test Navi（https://www.test-navi.com/eng/index.html）
This website provides practical knowledge on environmental testingthat ESPEC has acquired through years of experience, as well as
covering everything from the fundamentals to the latest information
on environmental and reliability testing.
・Updates for chamber controller
software・Download test proﬁles from a listof environmental test standards

The Pattern Manager Lite
ESPEC OnlineCore

It is a PC software can be downloaded from Central control system recommended for multiple environmental
test chambers installations
the Test Navi website.
For details, refer to page 38.

ESPEC OnlineCore (Sold separately)Internet

Test
area

A

Central control system recommended for
multiple environmental
test chambers installations

Intranet

OfficeTest
area

OnlineCore
Measuring
Test chambers of instrument
other manufacturers

Network
cameraB

10Required Equipment (Outdoor condenser Unit)● Water-cooled type・It has been prepared water-cooling equipment or when the air-cooling equipment in the installation location is
not sufficient● Remote air cooling• It is difficult to prepare water-cooling equipment* Depending on the ambient condition, it is possible to recommend indoor air-cooled condensing unit.

Safety Features (for Both E Series and High-Power Series)
●

●

●

●

●

●

●

●

●

11

Control circuit overcurrent
protection●

Cartridge fuse for control
circuit short-circuit protection
Fan motor short circuit
protection
Electrical compartment door
switchSpecimen power supply
control terminal
System error (error/warning)
Room temp. compensation
disconnection detection circuit
Dry-bulb temp. disconnection
detection circuit
Wet-bulb temp. disconnection
detection circuit(temperature and humidity
type)

●

●

Absolute upper/lower temp.
limit alarm(built-in temp./humidity
controller)
Fan motor overcurrent
protection
Overheat protector●

Heater short-circuit protection●

Heater overcurrent protection

●

●

●

●

Reverse-prevention relay

●

●

●

●

●

Refrigerator temp. sensor
Disconnection detection circuit
Refrigerator circuit temp.
outside range
Refrigerator high/low-pressurepressure switch
Refrigerator short-circuit
protection●●

Refrigerator overcurrent
protection
Humidifier short-circuit
protection(temperature and humidity
type)

●

●

Humidifier overcurrent
protection(temperature and humidity
type)
Humidifier dry heat protector(temperature and humidity
type)
Humidifier thermal fuse(temperature and humidity
type)
Humidifier water level
detection(temperature and humidity
type)

●

Temp. upper deviation limit
alarm(built-in temp./humidity
controller)
Absolute upper/lower
humidity limit alarm(built-in temp./humidity
controller)(temperature and humidity
type)
Water suspension relay(except for air-cooled types)

Options
Some options cannot be installed due to the control temperature (humidity) range. Contact sales for more information.

Low-GWP refrigerant R-449A

Time signal terminal

Enlarged viewing window

Because R-449A has a lower Global
Warming Potential (GWP), its use cancontribute to reducing global warminggas emissions.
Changes the refrigerator unit
refrigerant to R-449A.

Adds 8 standard relay contacts (time signal).

Changes from a W180 x H289 mm to a W295 x
H425 mm large viewing window. The windowuses heat-resistant glass that includes aheating element to prevent fogging.

Paperless recorder

Remote control function
Allows test conditions to be changed andoperation to be started or stopped at achamber which is connected via LAN.
(See P.10.)

A temperature & humidity recorderthat utilizes a liquid-crystal display
fitted with a touch-panel.
Display: 5.7 inch color touch panel
Scan interval: 5 sec. (default)Internal recording media:
Flash memory 8 MB
External recording media:
CF memory card
(Supplies with a 256 MB CF card)
USB flash drive

Large viewing window Standard viewing window

Chamber wall viewing window< Temperature type >No. of input channel:	Temperature 1(5 more channels canbe turned ON)< Temperature & humidity type >No. of input channel:	Temperature 1,
Humidity 1(4 more channels canbe turned ON)

Run/stop operation

InterfaceInstalled on chamber wall viewing windows(reinforced heat-resistant glass with heating
element) for observing the inside of thetemperature (humidity) chamber are available.
• Small (W350 x H250 mm)• Large (W600 x H400 mm)

Hands-in port (with viewing
window W350 x H250 mm)• RS-485• RS-232C• GPIB

It is used for manipulating the specimen
in the chamber from outside the chamber.
(Inner diameter 150 mm x 2 holes)

Communication cable• RS-485• GPIB

5 m / 10 m / 30 m
2m/4m

Additional cable port

Temperature (humidity) recorder<Temperature type>•	−50 to +100°C 100 mm 6-dot
system<Temperature and humidity type>•	−50 to +100°C / 0 to 100%rh
100 mm 6-dot system

Recorder output terminal
This terminal outputs the temperatureand relative humidity in the test area.

Interior plug socket
This socket supplies power inside the chamber.
Different types of sockets are available according to
the temperature and humidity in the specifications.

With standard specifications, a 50 mm
diameter port is provided.
• 25 mm• 50 mm• 100 mm
• 150 mm
• 200 mm

Safety precautions● Do not use specimens which are explosive or inflammable, or which contain such substances. Doing so isdangerous and may lead to fire or explosion.
● Do not place corrosive substances inside the chamber. If a corrosive substance is produced by the
specimen, the lifetime of the unit may be significantly shortened, in particular due to corrosion of stainlesssteel, resin, and silicone materials.
● Do not place life forms or substances that exceed allowable heat generation.
● Be sure to read the operation manual before operation.

12

Options
Some options cannot be installed due to the control temperature (humidity) range. Contact sales for more information.

Floor reinforcement

Rotating pilot lamp

Electrical grounding in chamber

Distributes the concentrated load that
occurs when specimens are carried into thechamber on a trolley, preventing distortions
and dents in the floor. Additional frames tosupport the floor panels also enhance
distributed load resistance.

In case of malfunction, the lamp
connected to the safety circuit isactivated, thus attracting the operator's
attention even from a distance.

Short-circuits each insulation panels by
the ground conductor, and connects
them to the ground line inside theelectrical compartment.

In-chamber work timer
Protective flooring (rubber type)The lamp and buzzer are activated to
inform the person outside of chamberwhen time is passed set on timer.

Prevents operators from slipping andprevents damage and dents.

Status indicator light
Indicates three chamber states: OPERATION,PERSONNEL INSIDE, and ALARM.

Emergency stop pushbutton (turn-to-reset type)
A pushbutton is used to stop operation
immediately in case of emergency.

Intercom
Allows to talk between personnel insideand outside the chamber.

* The breaker does not trip.

Interior

Operator safety mushroom
Operation indicator
Indicates “OPERATION” during operation.

A mushroom-head button is installed toprotect workers who enter thetemperature (humidity) chamber. Whenpressed, chamber operation stops andthe safety buzzer sounds an alarm.

Personnel indicator

Cold-weather suit
Cold weather protective clothing
including headwear, a pair of gloves, apair of boots and a two-piece suit. (Foruse in chamber at −40°C)

Water leakage detector

Indicates “PERSONNEL INSIDE”
when workers have entered thetemperature (humidity) chamber.

Alarm for detecting water leakage fromchamber or air conditioning unit byleakage sensor.

Alarm indicator
Indicates “ALARM” in red when achamber fault occurs.

Exterior

Independent temperature overcooling alarm
Grounding terminal
The grounding terminal for use, such asmeasurement equipment to be brought
into the chamber.

In case of malfunction due toovercooling, operation is terminated andan alarm message is displayed,
preventing freezing and damage to
specimens inside the chamber.

Humidity sensor (temperature &humidity chamber only)

13

This eliminates the need to replace thewick, and allows the dry-bulb humidity
sensor to measure low humidity ranges thatit otherwise would be unable to measure.

Options
Some options cannot be installed due to the control temperature (humidity) range. Contact sales for more information.

Thermocouple

Additional door

Refrigerator for heat load

Used to measure the temperature at adesired measurement point inside thetemperature (humidity) chamber, or tomeasure the specimen temperature.

Two types are available: single-swing
and double-swing doors.
Both come with a viewing window(W180 x H289 mm).

An additional refrigerator can be installed
in order to permit heat generation fromthe specimen during operation tests.

Full-ceiling air duct

Entrance curtain

Auxiliary humidifier (for temperature& humidity chambers only)

Lowers and stabilizes the air circulation
speed to protect the specimen.

Minimizes atmospheric disturbance oftemperature and humidity when
opening and closing the door.

Effective for heat load generation andhigh humidity specification. Pure water
is required.

Water purifier (for temperature &humidity chambers only)

Fan

Preparation
room
Condenser
Minimizes atmosphericdisturbanceof
Cooling water piping
Cooling water tanktemperatureand humidity when
Water supply
openingand closing the door. Also used
Refrigerator
as a measurement room for specimens.

room

Pump

Drain

Connects to the steam humidifier andoptional auxiliary humidifiers.
Improves the reliability ofmeasurements over long periods of timeand extends the life of the humidifiers.
• Ion-exchange water purifier

Test area

Loading ramp

Water supRef

Preparation room

This ramp is used to move heavy specimens
into the chamber. The ramp is available ina removable type and a lever type.

Air-cooled
Drain

Frost-free expansion(Low humidity equipment)(for temperature & humidity chambers only)

on roomThis expands the temperature andhumidity control range on the low
Test area
temperature side, preventing theformation of frost and extending thecontinuous operation time. (See P.4.)

The standard single door (W850 x H1800 mm)
can be changed for a double swing door
(W1400 x H1800 mm).

Flow switch (for water-cooled models only)This safety switch for the refrigeration
unit activates and shuts down theequipment when the cooling water level
becomes too low or is cut off.

Air-cooled

Preparation room

Loading ramp (lever type)Double swing door

Ion-exchangewater purifier

Airflow adjuster

Exhaust air duct (indoor air-cooled specification)

The airflow adjuster inside thetemperature (humidity) chamber can
reduce the effects of wind on thespecimen by adjustable in 4 steps air
speed velocity.

This directs waste heat from therefrigerator to the ceiling of the testarea, preventing heat from building up
in the machine box.

* In chamber water leak detection system and dew tray to catch dripping water
are also available to detect and prevent water damage.

14

Case StudyESPEC products can be tailored to suit your application. For details, please contact sales.

Vehicles3-year warranty is not available

Vehicle environmental test area
Perform sunlight tests in the target
temperature and humidity environment.
The temperature from the sensors installed on
the vehicle is sent as feedback for control of thelight intensity, making it possible to maintainthe vehicle at a constant heat load.
Temperature andhumidity range
Interior
dimensions
Sunlight chamber
control temperature−40 to ＋80°C / 30 to 80%rh

W5000 x D8000 x H3000 mm＋40 to ＋100°C* The surface temperature of a black panel located 1,000
mm below the lamps can be raised up to +30°C from thetest area temperature.

Construction
materials

Indoor/outdoor environmental test area

Area A

Area B

This can be used to test heat insulation and condensation of
construction materials such as walls and windows. The testarea is divided into Area A (indoor conditions) and Area B(outdoor conditions), thereby reproducing the indoor/outdoor
environmental conditions of a building. Area B is equippedwith a sunlight system and water spray system, and can also
be used for weather resistance tests consisting of repeatedsunlight and water spray. Area B is also moveable, allowing
the construction material specimens between test areas A
and B to be easily installed and removed.
Temperature andhumidity range
Testable specimens−15 to ＋50°C / 30 to 95%rh(at ＋10 to ＋50°C)

Max. 3,000 kg

Dimensions
W4500 x H4000 x D4100 mm
inside test area
Floor load
6 kPa {600 kgf/m2} (equally distributed load)* Specimen load supported by concrete foundation
resistance

Persons

VehiclesConstruction
materials

Artificial weather chamber
The ESPEC artificial weather chamber is capable ofreproducing all kinds of weather environment factors
including temperature, humidity, barometric pressure, rain,fog, snow, sunlight, wind, and atmospheric composition
either individually or in combinations. In addition to
ordinary environments, it can reproduce burning deserts,
extreme cold Antarctic conditions, high elevations,stratosphere, and other environments, producing the optimal
weather environment for the research purpose and subject.
Temperature andhumidity range
Dimensions
inside test area
SnowfallRain
Sunlight

15

Air low equipment−40 to ＋80°C / 20 to 90%rh(at ＋20 to ＋60°C)

W6000 x H4500 x D9000 mm
30 mm/h
0.3 to 200 mm/h
400 W/m2 to 1200 W/m2 (metal halide lamps)
0 to 20 m/s

Case Study
3-year warranty is not available

Environment Factor Modules
Adding environment factor modules to an existing or new temperature chamber allows for Combined
Sequential Environmental Test Systems.
Evaluate automotive sensors in a blizzard without being in a blizzard.

Environment
factor modules

New temperaturechamberSnow generator

Rain generator

Sunlight

Sunlight(LED)(infrared lamp)

Weather Environment

Fog generator

Airstream fan

16

Case StudyESPEC products can be tailored to suit your application. For details, please contact sales.

Secondarybatteries

3-year warranty is not available

Temperature chamber with safety mechanisms
With the expansion of hybrid vehicles and EV,
there is growing need to connect charging/discharging systems to secondary battery
modules for testing. This temperature chamberwith safety mechanisms can be customized so that
there is ample room for wiring work when a large
EV secondary battery is installed in the chamber.
During charging/discharging evaluations andvarious tests, there is the risk of gas leakage fromthe secondary battery resulting in fire. Therefore
a number of safety mechanisms have been
installed so that tests can be performed safely.
Temperature
range
Interior
dimensions

Persons−40 to ＋80°C

W3020 x H2100 x D1970 mm(Contact sales for more information.)Low oxygen training chamberThis normal pressure, low oxygen chamber lowers
the oxygen concentration while maintaining sealevel (normal) pressure. By supplying low oxygen air
with a converted oxygen concentration, it is possible
to reproduce a low oxygen environment similar tohigh elevations while remaining at sea level.
In a high-elevation training gym, it is possible tomonitor not only the concentration of oxygen andother gases, but also to monitor the exercise timeand biometric information of the trainer and user.
This product has been introduced at a large numberof facilities centered on research institutions anduniversities.
18.6 to 11.2%
Oxygenconcentration (Equivalent elevation: 1,000 to 5,000 m)
Temperature and＋22 to ＋26°C / 60 to 70%rh
humidity range

Pharmaceuticals

Stability Test ChamberThis system supports stability testing(acceleration test) (±1°C/±5%rh at
40°C/75%rh) of the notification of the
Ministry of Health, Labour and Welfare.
(Japanese patent no.6258110)

Temperature &humidity range
Temperature andhumidity
maximum andminimum range

17＋25 to ＋40°C / 60 to 75%rh±1°C / ±5%rh

Case StudyESPEC products can be tailored to suit your application. For details, please contact sales.

5G/IoT

Shield performance / Environmental test area with radio darkroom● Radio darkroom (2 connected chambers)

5G/IoT

3-year warranty is not available

ShieldperformanceFrequency band 0.5 GHz to 30 GHz
Attenuation rate 60 dB or more

Features● A radio wave absorber isinstalled in the interior.
● The 2 test areas can becontrolled to different
temperatures.
● Radio wave transmitting
material is installed
between the test areas.

Example ofapplication

Base station with largetransmission output(macrocell)

Constant Temperature RF Anechoic Chamber
For 5G base stations, temperature dependency
evaluations in OTA measurements are
required because antennas and wireless send/
receive modules have been integrated into asingle unit to reduce transmission losses.Thesesystems are capable of conducting temperature
tests while possessing the functionality of an
RF anechoic chamber with an attenuation rateof 60 dB or more at 30 GHz frequencies.

Temperature range
Shielding
performance−40°C 〜 ＋100°C

Frequency range

0.5GHz to 30GHz

Attenuation rate

60 dB or higher* Contact ESPEC for shielding performance and interior dimensions.

Online Exhibition 5G/IoT Solution Expohttps://www.espec.co.jp/english/products/5g_iot-webexpo/top/base.html

18

https://www.espec.co.jp/english

Head Office
3-5-6, Tenjinbashi, Kita-ku, Osaka 530-8550, Japan
Tel : 81-6-6358-4741
Fax : 81-6-6358-5500

ESPEC NORTH AMERICA, INC.
Tel : 1-616-896-6100 Fax : 1-616-896-6150
ESPEC EUROPE GmbHTel : 49-211-361850-0
ESPEC ENVIRONMENTAL CHAMBERS
SALES AND ENGINEERING LTD. STI. (Turkey)
Tel : 90-212-438-1841 Fax : 90-212-438-1871
ESPEC ENVIRONMENTAL EQUIPMENT (SHANGHAI) CO., LTD.
Head Office
Tel : 86-21-51036677 Fax : 86-21-63372237
BEIJING Branch
Tel : 86-10-64627025 Fax : 86-10-64627036
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Tel : 86-22-26210366 Fax : 86-22-26282186
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Tel : 86-29-88312908 Fax : 86-29-88455957
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Tel : 86-28-88457756 Fax : 86-28-88474456
WUXI Branch
Tel : 86-510-82735036 Fax : 86-510-82735039
ESPEC TEST TECHNOLOGY (SHANGHAI) CO., LTD.
Tel : 86-21-68798008 Fax : 86-21-68798088
ESPEC ENGINEERING (THAILAND) CO., LTD.
Tel : 66-3-810-9353
Fax : 66-3-810-9356
ESPEC ENGINEERING VIETNAM CO., LTD.
Tel : 84-24-22208811 Fax : 84-24-22208822

ISO 9001 (JIS Q 9001)

Quality Management System Assessed
and Registered
ESPEC CORP. has been assessed by and registered in the
Quality Management System based on the International
Standard ISO 9001:2015 (JIS Q 9001:2015) through the
JSA Solutions Co.,Ltd.
＊The organization of these certificates is
ESPEC CORP. Japan.

MS
CM001

ISO 27001 (JIS Q 27001)

Quality Management System Assessed
and Registered＊The organization of these certificates is
ESPEC CORP. Japan.

ISO 14001 (JIS Q 14001)

Environmental Management System Assessed
and Registered＊The organization of these certificates is
ESPEC Group Japan.

●

KT4E05C03 (The contents of this catalog is as of April, 2023.)

●

MS
CM021

Specifications are subject to change without notice due to design improvements.

Corporate names and trade names mentioned in this catalog are trademarks or registered trademarks.