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. |
7100 |
–100 °C to 110 °C |
±0.008 °C at –100 °C |
337 mm
13.25 in |
No external cooling for –100 °C.
Extremely low 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 |
40 °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. |
Phone: 801-763-1600
Constant Temperature Controlled Calibration Baths