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Criterion Temperature Benchtop Chambers

Temperature chamber models designed to save lab space


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 BTU-133, BTU-433, and BTZ-133 chambers use 115V power, meaning no special power hook-ups.

  • Lowest temperature: -20 or -70°C (-4 or -94°F)
  • Highest temperature: 180°C (354°F)
  • Chamber sizes: 1.5 or 4 cubic feet
  • Touch-screen Watlow F4T programmer with Ethernet access

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.

  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
  • Full thermal break around doorframe
  • One 50mm (2") diameter cable port on left, with flexible silicone plug
  • Three levels of overheat protection, plus overcool protection
  • Easy lift-off service panels, electrical access on left
  • Detachable eight-foot power cord with plug
  • ETL listed electrical panel conforming to UL 508A

Touch-screen programmer/controller with Ethernet

  • Watlow F4T with touch-screen and Ethernet port standard
  • Save 40 profiles with up to 50 steps each (ramp, soak, jump, auto-start, end)
  • One event relay for external device control, plus specimen power interlock relay for safety
  • ESPEC exclusive options include: Web Controller for full remote access; Chamber Connect software for basic data logging and monitoring. USB and RS-485 ports available, as well.
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Criterion Temperature Benchtop Model Comparison

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Model / Link Interior Dimensions
(W x D x H)
Interior Volume Temperature Range Humidity Control Change Rate
(heat/cool)
Notes
BTZ-175 19.6" x 11" x 12" 1.5 cu. ft. -70 to 180°C No up to 5°C/min.

Quick Ship

BTZ-133 19.6" x 11" x 12" 1.5 cu. ft. -70 to 180°C No up to 3.5°C/min.

Quick Ship

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

Quick Ship

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

Quick Ship

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-475E 19.6" x 15" x 23.6" 4 cu. ft. -70 to 180°C No up to 2.75°C/min. 230V 50Hz export model
BTU-133 19.6" x 11" x 12" 1.5 cu. ft. -20 to 180°C No up to 2°C/min.
Click model number for details, including metric & english units.

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