ESPEC North America builds dozens of walk-in test chambers every year for top companies testing automotive, electronics, communications, aerospace, and other products. Drive-in test chambers for automobiles are one of our top specialties. Stability walk-in rooms are another specialty, designed for light-duty testing or long-term steady-state evaluation of pharmaceuticals and other products.

Panelized Chamber/Room

Our panelized walk-in test chambers use urethane-foam panels that lock together with cam latches. This is the same construction used for walk-in coolers in restaurants and supermarkets, but of a higher quality. The panels we use have a stainless steel interior skin to be stronger and impervious to extreme conditions. The seams between panels are carefully sealed to protect from leaking that may affect performance or damage the panels. Doors and windows have embedded heaters, as well.

Temperature and Humidity Control

ESPEC has standard air conditioning systems, called Modular Air Plenums (MAP). These MAPs are designed with the proper heating, refrigeration, and humidity control to achieve your desired performance and capabilities. The MAP simply rolls-up to an assembled panel chamber to complete installation.

Easy-to-use Controller

In addition, the P-300 touch-screen controller makes running an ESPEC environmental test chamber a breeze. The full-color, touch-screen interface is remarkably easy to use and understand. The P-300 touch-screen controller can be managed remotely via our new Ethernet/LAN-based Web Controller or RS-232 serial port. USB access is standard.

Features for Panelized Walk-in Chambers
  • Modular panel test chamber featuring stainless steel interior
  • Exterior is embossed galvanized steel, stone white coating
  • Insulated panel floor with non-slip surface and multiple drains
    - Loading up to 600 psf, suitable for foot traffic or small carts
    - Optional: No floor, medium-duty (900 psf), or heavy-duty (1,500 psf)
  • MAP service doors are hinged for easy access to refrigeration components
  • Reliable steam generator system for humidity applications
  • Adjustable vanes in supply grille allow directing of airflow as needed

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Photo of Panelized Walk-in
Temperature and humidity testing rooms

Product Suggestions
Model Number Interior Dimensions
(W x D x H)		 Interior Volume Temperature Range Humidity Control Change Rate
(heat/cool)		 Notes
EPB279 61" x 84" x 94" 279 cu. ft. (-35 or -65) to 85°C Optional up to up to 10°C/min.
EPB355 61" x 107" x 94" 355 cu. ft. (-35 or -65) to 85°C Optional up to up to 10°C/min.
EPB431 61" x 130" x 94" 431 cu. ft. (-35 or -65) to 85°C Optional up to up to 10°C/min.
EPB384 84" x 84" x 94" 384 cu. ft. (-35 or -65) to 85°C Optional up to up to 10°C/min.
EPB489 84" x 107" x 94" 489 cu. ft. (-35 or -65) to 85°C Optional up to up to 10°C/min.
EPB594 84" x 130" x 94" 594 cu. ft. (-35 or -65) to 85°C Optional up to up to 10°C/min.
EPB623 107" x 107" x 94" 623 cu. ft. (-35 or -65) to 85°C Optional up to up to 10°C/min.
EPB757 107" x 130" x 94" 757 cu. ft. (-35 or -65) to 85°C Optional up to up to 9.1°C/min.
EPB891 107" x 153" x 94" 891 cu. ft. (-35 or -65) to 85°C Optional up to up to 6.8°C/min.
EPB1024 107" x 176" x 94" 1024 cu. ft. (-35 or -65) to 85°C Optional up to up to 5.5°C/min.
EPB919 130" x 130" x 94" 919 cu. ft. (-35 or -65) to 85°C Optional up to up to 6.6°C/min.
EPB1082 130" x 153" x 94" 1082 cu. ft. (-35 or -65) to 85°C Optional up to up to 5.3°C/min.
EPB1245 130" x 176" x 94" 1245 cu. ft. (-35 or -65) to 85°C Optional up to up to 4.5°C/min.
EPB332 61" x 84" x 112" 332 cu. ft. (-35 or -65) to 85°C Optional up to up to 10°C/min.
EPB423 61" x 107" x 112" 423 cu. ft. (-35 or -65) to 85°C Optional up to up to 10°C/min.
EPB514 61" x 130" x 112" 514 cu. ft. (-35 or -65) to 85°C Optional up to up to 10°C/min.
EPB457 84" x 84" x 112" 457 cu. ft. (-35 or -65) to 85°C Optional up to up to 10°C/min.
EPB583 84" x 107" x 112" 583 cu. ft. (-35 or -65) to 85°C Optional up to up to 10°C/min.
EPB708 84" x 130" x 112" 708 cu. ft. (-35 or -65) to 85°C Optional up to up to 10°C/min.
EPB742 107" x 107" x 112" 742 cu. ft. (-35 or -65) to 85°C Optional up to up to 9.6°C/min.
EPB902 107" x 130" x 112" 902 cu. ft. (-35 or -65) to 85°C Optional up to up to 6.9°C/min.
EPB1061 107" x 153" x 112" 1061 cu. ft. (-35 or -65) to 85°C Optional up to up to 5.5°C/min.
EPB1221 107" x 176" x 112" 1221 cu. ft. (-35 or -65) to 85°C Optional up to up to 4.6°C/min.
EPB1095 130" x 130" x 112" 1095 cu. ft. (-35 or -65) to 85°C Optional up to up to 5.4°C/min.
EPB1289 130" x 153" x 112" 1289 cu. ft. (-35 or -65) to 85°C Optional up to up to 4.4°C/min.
EPB1483 130" x 176" x 112" 1483 cu. ft. (-35 or -65) to 85°C Optional up to up to 3.8°C/min.

    ⬆️  Click model number for details, including metric & english units.

Get improved performance, energy savings, plus USB access

New P-300 controller with USB

The exclusive ESPEC P-300 controller has USB and Ethernet features to make programming and data collection easier than before. The user interface uses tabs for faster access to any screen. Standard USB and optional Web Controller/Ethernet interfaces make programming and data acquisition much simpler. In addition, improved algorithms make operation faster and smoother.

DEMO: See how easy the P-300 is

USB port for upload/download of test profiles and test data

  • Test programs can uploaded or downloaded from the P-300 via USB thumb drive.
  • Create, edit, and store programs on a PC using the included Pattern Manager Lite software.
  • Accurate, repeatable testing by uploading the same program to multiple chambers.
  • Create your own back-up archive of programs, and get additional profiles from ESPEC's library.
  • Retrieve and download test operation data via USB thumb drive. Data timeframe is selectable.
  • For integrity, viewing test data on a PC and exporting to Excel requires included Pattern Manager Lite software.

Energy-saving operation

Invisible to the end user, the P-300 uses advanced cooling control via an electronic expansion valve, saving energy and improving temperature stability. Sophisticated future-looking algorithms make temperature ramping faster and smoother. These high-end features are unique to ESPEC. Additional improvements in refrigeration and heater operation will make the next generation of ESPEC chambers the most energy efficient ever.

Additional capabilities

  • Store up to forty programs, as well as three different constant-mode set-ups.
  • Multilingual display in English, Japanese, Chinese, or Korean.
  • Alarm diagnostics and history, plus a ‘back trace’ feature for troubleshooting.
  • Three programmable timers allow the user to set reminders for maintenance or other actions.
  • Energy saving by using only one compressor when testing above -10°C (for cascade refrigeration models).
  • Optional Ethernet/browser-based Web Controller access can also be used to upload and download programs, as well as data.
  • Optional Product Temperature Control allows faster ramping to the desired conditions on the sample.
  • Computer interface options for specialized programs: RS-232/serial or GP-IB.

P-300 Specification

Specification Features
Display

Color touch-screen, 6.5 inch diagonal, 640x480 resolution
Multilingual display in English, Japanese, Chinese, or Korean
Control Method

PID (Proportional, Integral, Derivative)
plus WRTC (Window Reference Trajectory Control)
Communications

Standard: USB External Memory port
Optional: RS-232, RS-485, Ethernet
Operating Modes
(as indicated in upper left of the display)

STOP: chamber off, programmer on
PGM: RUN runs selected test profile
CONSTANT: runs at set value continually
Program Capacity

40 programs, 99 steps per program
Programming Capabilities

Create or copy programs
Upload and download of programs via USB
Copy, edit, insert, and delete steps
Two nested loops to repeat steps 999 times
Selectable end-of-test modes
Create pause steps within programs
Soak control delays timer until setpoint is reached
Additional Functions

Alarm report lists last 1000 alarms and time occurred
Time signal relay control (with naming capability)
High/low limit alarm functions
Audible alarm with on-screen explanation
Selectable restart modes after power failure
Automatic start and stop functions
Keylock protection and configuration lock-out
Service guide and help screens
Three settable reminder alarms for PM
Running time meter is integral
RoHS directive lead-free compliant
Pattern Manager Lite Software

Allows creation, editing, and archive storage of test profiles on a PC
Test profiles may be uploaded and downloaded to P-300
Allows viewing and graphing of chamber operation data downloaded via USB
Operation data may be exported to CSV for use with Excel or other programs

Software Options

Learn more about ways to access ESPEC controllers via software our support page:
Software for P-300

Recommended: Web Controller

The ESPEC Web Controller is an embedded server/software solution for monitoring and programming your chamber via Ethernet. Works with P-300, SCP-220, F4T, & F4 controllers.

See the brochure
Self-install kit for existing units
Try the live demo now!

Independent of the controller itself, the Web Controller adds additional capabilities for datalogging, programming, alarm emails, and RESTful API.

Get quick pricing on Panelized Walk-in Chambers

Fill out contact details below to get a price quote right away. Standard price quotes are usually completed and sent in less than four hours.


Price quotes include:
  • Pricing for unit, options, freight, and install/start-up
  • Current lead-time or stock status
  • Related documents: brochure, detailed specifications, drawing
  • Contact information for your local sales representative

Quotes are sent by the next business day for standard models shipping to North America. Complete all form fields to ensure a fast response.

Contacting ESPEC
+1 616-896-6100 (8-8 EST)
Find & call your local sales rep
Online product support form

Contact ESPEC:

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