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Criterion Temperature Benchtop Chambers Temperature chamber models designed to save lab space
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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 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 |
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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）
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 |
|---|---|---|---|---|---|---|
| HBTU-133 | 19.6" x 11" x 12" | 1.5 cu. ft. | -35 to 180°C | No | up to 1.5°C/min. | |
| HBTZ-133 | 19.6" x 11" x 12" | 1.5 cu. ft. | -70 to 180°C | No | up to 3.5°C/min. | |
| HBTZ-175 | 19.6" x 11" x 12" | 1.5 cu. ft. | -70 to 180°C | No | up to 5°C/min. | |
| HBTZ-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 |
| HBTU-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 |
| HBTZ-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. | ||||||
HBTU-133
1.5 Cubic Foot Criterion Benchtop
Specifications
| Item | Value |
|---|---|
| Specifications are for reference only. Please contact ESPEC for detailed information. | |
| Product Family | Criterion Temperature Benchtop |
| Interior Volume | 1.5 cu. ft. 42 Liters |
| Interior Dimensions （W x D x H） | 19.6" x 11" x 12" 500 x 280 x 300 mm |
| Exterior Dimensions （W x D x H） | 29" x 34" x 33" 740 x 850 x 840 mm |
| Temperature Range | -35 to 180°C -31 to 354°F |
| Average Change Rate （rates lower with 50Hz power） | 1.5°C/min heat & 1.2°C/min cool （-15 to 160°C empty chamber, per IEC 60068 3-5, at supply sensor） |
| Power | 120V 11A max |
| Maximum Sound Level （1 meter away） | 65 dBA |
| “Price Rank” （Comparing to other models in this product category. | #1 out of 19 ranked |
HBTZ-133
1.5 Cubic Foot Criterion Benchtop
Specifications
| Item | Value |
|---|---|
| Specifications are for reference only. Please contact ESPEC for detailed information. | |
| Product Family | Criterion Temperature Benchtop |
| Interior Volume | 1.5 cu. ft. 42 Liters |
| Interior Dimensions （W x D x H） | 19.6" x 11" x 12" 500 x 280 x 300 mm |
| Exterior Dimensions （W x D x H） | 29" x 33.3" x 33" 740 x 850 x 840 mm |
| Temperature Range | -70 to 180°C -100 to 354°F |
| Average Change Rate （rates lower with 50Hz power） | 3.5°C/min heat & 3°C/min cool -45 to 155°C （Empty） |
| Power | 115V 16A max |
| Maximum Sound Level （1 meter away） | 65 dBA |
| Temperature Fluctuation （at control sensor） | ±0.5 |
| “Price Rank” （Comparing to other models in this product category. | #2 out of 19 ranked |
HBTZ-175
1.5 Cubic Foot Criterion Benchtop
Specifications
| Item | Value |
|---|---|
| Specifications are for reference only. Please contact ESPEC for detailed information. | |
| Product Family | Criterion Temperature Benchtop |
| Interior Volume | 1.5 cu. ft. 42 Liters |
| Interior Dimensions （W x D x H） | 19.6" x 11" x 12" 500 x 280 x 300 mm |
| Exterior Dimensions （W x D x H） | 29" x 33.3" x 33" 740 x 850 x 840 mm |
| Temperature Range | -70 to 180°C -100 to 354°F |
| Average Change Rate （rates lower with 50Hz power） | 5°C/min -45 to 155°C （Empty） |
| Power | 208/230V 1ph 12A max |
| Maximum Sound Level （1 meter away） | 65 dBA |
| Temperature Fluctuation （at control sensor） | ±0.5 |
| “Price Rank” （Comparing to other models in this product category. | #3 out of 19 ranked |
HBTZ-175E
1.5 Cubic Foot Criterion Benchtop （50Hz）
Specifications
| Item | Value |
|---|---|
| Specifications are for reference only. Please contact ESPEC for detailed information. | |
| Product Family | Criterion Temperature Benchtop |
| Interior Volume | 1.5 cu. ft. 42 Liters |
| Interior Dimensions （W x D x H） | 19.6" x 11" x 12" 500 x 280 x 300 mm |
| Exterior Dimensions （W x D x H） | 29" x 33.3" x 34" 740 x 850 x 865 mm |
| Temperature Range | -70 to 180°C -100 to 354°F |
| Average Change Rate （rates lower with 50Hz power） | 5°C/min -45 to 155°C （Empty） |
| Power | 230V 1ph 50Hz 12A max |
| Maximum Sound Level （1 meter away） | 65 dBA |
| Temperature Fluctuation （at control sensor） | ±0.5°C |
| Temperature Gradient （Uniformity, empty） | ±2°C below 100°C |
| Notes | 230V 50Hz export model |
| “Price Rank” （Comparing to other models in this product category. | #3 out of 19 ranked |
HBTU-433
4 Cubic Foot Criterion Benchtop
Specifications
| Item | Value |
|---|---|
| Specifications are for reference only. Please contact ESPEC for detailed information. | |
| Product Family | Criterion Temperature Benchtop |
| Interior Volume | 4 cu. ft. 113 Liters |
| Interior Dimensions （W x D x H） | 19.6" x 15" x 23.6" 498 x 380 x 600 mm |
| Exterior Dimensions （W x D x H） | 29" x 33.35" x 45.6" 737 x 847 x 1159 mm |
| Temperature Range | -20 to 180°C -4 to 354°F |
| Average Change Rate （rates lower with 50Hz power） | 1.5°C/min heat & 1.2°C/min cool （Empty） |
| Power | 120V |
| Notes | Also available with humidity control |
| “Price Rank” （Comparing to other models in this product category. | #4 out of 19 ranked |
HBTZ-475
4 Cubic Foot Criterion Benchtop
Specifications
| Item | Value |
|---|---|
| Specifications are for reference only. Please contact ESPEC for detailed information. | |
| Product Family | Criterion Temperature Benchtop |
| Interior Volume | 4 cu. ft. 113 Liters |
| Interior Dimensions （W x D x H） | 19.6" x 15" x 23.6" 498 x 380 x 600 mm |
| Exterior Dimensions （W x D x H） | 29" x 33.35" x 45.6" 737 x 847 x 1159 mm |
| Temperature Range | -70 to 180°C -100 to 354°F |
| Average Change Rate （rates lower with 50Hz power） | 2.75°C/min heat & 2.5°C/min cool （Empty） |
| Power | 208/230V 1ph 12A max |
| Temperature Fluctuation （at control sensor） | ±0.5 |
| Notes | Also available with humidity control |
| “Price Rank” （Comparing to other models in this product category. | #8 out of 19 ranked |