Criterion Temperature Benchtop Chambers
Temperature chamber models designed to save lab space
BTZ-133 with optional window
The Criterion temperature chamber series provides an economical and space-saving solution for a variety of temperature testing requirements. The chamber's interior size is 3.5 inches wider than traditional benchtops, yet the exterior is 20% narrower. The BTZ-133 chamber uses 115V power, meaning no special power hook-ups.
- Lowest temperature: -20, -35, or -70°C (-4, -35, or -100°F)
- Highest temperature: 180°C (354°F)
- Chamber sizes: 1.5 or 4 cubic feet
- Fully programmable with Watlow F4 controller
The extended temperature ranges of the Criterion series make testing at extreme conditions possible without buying a larger, stand alone chamber. Two chamber sizes are available, as well.
The programmer includes a temperature alarm as just one part of ESPEC's three-tiered over-temperature protection system. A thermal fuse and a user-set independent limit are also included. In addition, a specimen power terminal allows the user to safely operate powered equipment inside or with the chamber.
 The conditioning components are laid out in a vertical configuration to save bench space. |  The Criterion chambers respond quickly to setpoint changes. The BTZ-175 can save 30 minutes or more per cycle. |
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Compare Benchtop Models Side-by-side comparison of up to three models.
Features
- High performance and quiet operation (65 dBa)
- Space-saving footprint, designed for flush installation to wall
- Stainless steel exterior and durable thermoformed plastic door
- Full thermal break around doorframe
- One 50mm (2") diameter cable port on left, with flexible silicone plug
- Three levels of overheat protection
- Detachable eight-foot power cord with plug
WATLOW F4 PROGRAMMER/CONTROLLER
- Popular PID controller for test chambers
- Stores 40 different profiles (total 256 steps)
- Step types include: ramp, soak, jump, auto-start, and end
- RS-232C Modbus interface (free standard software)
Temperature Only Benchtops
Literature Downloads
Related Products
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Available Options
Criterion Temperature Benchtop Model Comparison
| Model / Link | Interior Dimensions (W x D x H) |
Interior Volume | Temperature Range | Humidity Control | Change Rate (heat/cool) |
Notes |
|---|---|---|---|---|---|---|
| BTU-133 | 19.6" x 11" x 12" | 1.5 cu. ft. | -35 to 180°C | No | up to 2°C/min. | |
| BTZ-133 | 19.6" x 11" x 12" | 1.5 cu. ft. | -70 to 180°C | No | up to 3.5°C/min. | |
| BTZ-175 | 19.6" x 11" x 12" | 1.5 cu. ft. | -70 to 180°C | No | up to 5°C/min. | |
| BTZ-175E | 19.6" x 11" x 12" | 1.5 cu. ft. | -70 to 180°C | No | up to 5°C/min. | 230V 50Hz export model |
| BTU-433 | 19.6" x 15" x 23.6" | 4 cu. ft. | -20 to 180°C | No | up to 1.5°C/min. | Also available with humidity control |
| BTZ-475 | 19.6" x 15" x 23.6" | 4 cu. ft. | -70 to 180°C | No | up to 2.75°C/min. | Also available with humidity control |
| Click model number for details, including metric & english units. | ||||||