A calibration bath is a uniform temperature enclosure with a constant temperature setting that can be adjusted manually or with automation. These calibration baths use a mixed fluid to provide excellent thermal contact for temperature calibration. They offer high stability, a large working volume, and flexibility for calibrating a variety of temperature sensors. A world-class temperature controller and 30 plus years of experience make these the choice of National Metrology Institutes and calibration laboratories around the world.
Compact calibration baths: low and high temperature
| Model | Range | Stability | Depth | Features |
| 6330 | 35 °C to 300 °C | ±0.005 °C at 100 °C ±0.015 °C at 300 °C | 234 mm 9.25 in | Small benchtop footprint. Optional cart includes storage space. High temperature bath |
| 7320 | –20 °C to 150 °C | ±0.005 °C at –20 °C ±0.005 °C at 25 °C | 234 mm 9.25 in | Small 9.2-liter (2.4-gallon) tank. Uniformity ±0.005 °C. |
| 7340 | –40 °C to 150 °C | ±0.005 °C at –40 °C ±0.005 °C at 25 °C | 234 mm 9.25 in | Low temperature calibrations. Metrology-level performance. |
| 7380 | –80 °C to 100 °C | ±0.006 °C at –80 °C ±0.010 °C at 0 °C | 178 mm 7 in | Achieves –80 °C in less than 130 minutes. Quiet operation. |
| 7312 | –5 °C to 110 °C | ±0.001 °C at 0 °C | 496 mm 19.5 in | Maintains two TPW cells. Compact, quiet. |
| 6331 | 40 °C to 300 °C | ±0.007 °C at 100 °C ±0.015 °C at 300 °C | 457 mm 18 in | 18 in of depth with just 16 liters of fluid. RS-232 included. |
| 7321 | –20 °C to 150 °C | ±0.005 °C at –20 °C ±0.005 °C at 25 °C | 457 mm 18 in | Perfect for LIG thermometers with optional kit. Quiet operation. |
| 7341 | –45 °C to 150 °C | ±0.005 °C at –40 °C ±0.005 °C at 25 °C | 457 mm 18 in | Fast temperature changes. Access opening accommodates many thermometers. |
| 7381 | –80 °C to 110 °C | ±0.006 °C at –80 °C ±0.005 °C at 0 °C | 457 mm 18 in | Stability of ±0.006 °C or better over full range. Compatible with MET/TEMP II software. Low temperature bath |
Standard size calibration baths: Low and high temperature
| Model | Range | Stability | Depth | Features |
| 7060 | –60 °C to 110 °C | ±0.0025 °C at –60 °C ±0.0015 °C at 25 °C | 305 mm 12 in | Reaches –60 °C with standard refrigeration. |
| 7080 | –80 °C to 110 °C | ±0.0025 °C at –80 °C ±0.0015 °C at 25 °C | 305 mm 12 in | Best combination of stability and ultralow temperature bath. |
| 7008 | –5 °C to 110 °C | ±0.0007 °C at 25 °C | 331 mm 13 in | Large tank for larger mass immersion. Maintains standard resistors. |
| 7011 | –10 °C to 110 °C | ±0.0008 °C at 0 °C ±0.0008 °C at 25 °C | 305 mm 12 in | Self-contained refrigeration. Best-priced ultrastable, cooled bath. |
| 7012 | –10 °C to 110 °C | ±0.0008 °C at 0 °C ±0.0008 °C at 25 °C | 457 mm 18 in | Maintains up to 4 WTP cells for weeks. Large access: 162 x 292 mm (6.3 in x 11.5 in). |
| 7037 | –40 °C to 110 °C | ±0.002 °C at –40 °C ±0.0015 °C at 25 °C | 457 mm 18 in | Lowest-temperature deep-well bath. Mercury cell maintenance bath. |
| 7040 | –40 °C to 110 °C | ±0.002 °C at –40 °C ±0.0015 °C at 25 °C | 305 mm 12 in | Self-contained single-stage refrigeration. Digital controller. |
| 6020 | 40 °C to 300 °C | ±0.001 °C at 40 °C ±0.005 °C at 300 °C | 305 mm 12 in | Broad range to 300 °C. Optional RS-232 and IEEE-488 interface. |
| 6022 | 40 °C to 300 °C | ±0.001 °C at 40 °C ±0.005 °C at 300 °C | 464 mm 18.25 in | Deep tank for SPRT or LIG thermometers. Optional fluid level adapter. High tempertures |
| 6024 | 40 °C to 300 °C | ±0.001 °C at 40 °C ±0.005 °C at 300 °C | 337 mm 13.25 in | Larger access opening and tank size for higher throughput. High temperature bath |
| 6050H | 180 °C to 550 °C | ±0.002 °C at 200 °C ±0.007 °C at 500 °C | 305 mm 12 in | Better stability than sand baths. High temperature bath, low gradients. |
Special application
| Model | Range | Stability | Depth | Features |
| 6054 | 50 °C to 300 °C | ±0.003 °C at 100 °C ±0.005 °C at 300 °C | 610 mm 24 in | Maintains constant fluid level. |
| 6055 | 200 °C to 550 °C | ±0.003 °C at 200 °C ±0.01 °C at 550 °C | 432 mm 17 in | Includes LIG sighting channel. Very high temperature bath |
| 7007 | –5 °C to 110 °C | ±0.001 °C at 0 °C ±0.003 °C at 100 °C | 610 mm 24 in | Large, 7-inch-diameter working space. |
| 7009 | 0 °C to 50 °C | ±0.0007 °C at 25 °C | 331 mm 13 in | Largest capacity with 4.8-cubic foot (167-liter) working area and 0.7 mK stability. |
| 7015 | 0 °C to 50 °C | ±0.0007 °C at 25 °C | 331 mm 13 in | Ultrastable for maintaining resistors. Large access and workspace. Splash- and spill-resistant lid. |
| 7108 | 20 °C to 30 °C | ±0.004 °C | 203 mm 8 in | Peltier cooling means no compressor and quieter performance. Maintains standard resistors. |
| 7911A2 | 0 °C | ±0.002 °C | 203 mm 8 in | Easy and affordable zero-point source for calibrating temperature sensors. |
Other
| Item | Description | |||
| Bath Accessories | Stands, rods, and clamps to suspend and support your probes and thermometers | |||
| Bath Fluids | Silicone oils, salt, and cold fluids in convenient, small quantities. | |||
| Rosemount Bath Controllers | Model 7900 controller designed by Hart integrates the features of Hart’s 2100 controller and can be used in place of the Rosemount 915 controller with Rosemount-designed baths. | |||
| Hart Bath Controllers | Model 2100 and 2200 controllers can be integrated with homemade baths or other heat sources to achieve performance levels approaching Hart baths. | |||
| Note: Look here for portable Micro-Baths. | ||||