Fluke
Fluke 6331/7321/7341/7381 Deep-Well Compact Baths
Manufacturer: Fluke Calibration
Model: 6331/7321/7341/7381
Features
- 457 mm (18 in) of depth with just 15.9 liters (4.2 gal) of fluid
- Perfect for liquid-in-glass thermometers with optional LIG kit
- Fast, quiet, compact (yet deep!), and economical
Specifications
| Specifications | ||
| Range | 6331 | 35 °C to 300 °C |
| 7321 | –20 °C to 150 °C | |
| 7341 | –45 °C to 150 °C | |
| 7381 | –80 °C to 110 °C | |
| Stability | 6331 | ±0.007 °C at 100 °C (oil 5012) |
| ±0.010 °C at 200 °C (oil 5017) | ||
| ±0.015 °C at 300 °C (oil 5017) | ||
| 7321 | ±0.005°C at –20°C (ethanol) | |
| ±0.005°C at 25°C (water) | ||
| ±0.007°C at 150°C (oil 5012) | ||
| 7341 | ±0.005°C at –45°C (ethanol) | |
| ±0.005°C at 25°C (water) | ||
| ±0.007°C at 150°C (oil 5012) | ||
| 7381 | ±0.006°C at –80°C (ethanol) | |
| ±0.005°C at 0°C (ethanol) | ||
| ±0.005°C at 100°C (oil 5012) | ||
| Uniformity | 6331 | ±0.007 °C at 100 °C (oil 5012) |
| ±0.017 °C at 200 °C (oil 5017) | ||
| ±0.025 °C at 300 °C (oil 5017) | ||
| 7321 | ±0.007 °C at –20 °C (ethanol) | |
| ±0.00 7 °C at 2 5°C (water) | ||
| ±0.010°C at 150 °C (oil 5012) | ||
| 7341 | ±0.007 °C at –45 °C (ethanol) | |
| ±0.007 °C at 25 °C (water) | ||
| ±0.010 °C at 150 °C (oil 5012) | ||
| 7381 | ±0.007 °C at –80 °C (ethanol) | |
| ±0.007 °C at 0 °C (ethanol) | ||
| ±0.007 °C at 100 °C (oil 5012) | ||
| Heating Time† | 6331 | 130 minutes, from 40 °C to 300 °C (oil 5017) |
| 7321 | 120 minutes, from 25 °C to 150 °C (oil 5012) | |
| 7341 | 120 minutes, from 25 °C to 150 °C (oil 5012) | |
| 7381 | 60 minutes, from 25 °C to 100 °C (oil 5012) | |
| Cooling Time† | 6331 | 14 hours, from 300 °C to 100 °C (oil 5017) |
| 7321 | 110 minutes, from 25 °C to –20 °C (ethanol) | |
| 7341 | 130 minutes, from 25°C to –45°C (ethanol) | |
| 7381 | 210 minutes, from 25 °C to –80 °C (ethanol) | |
| Stabilization Time | 15–20 minutes | |
| Temperature Setting | Digital display with push-button data entry | |
| Set-Point Resolution | 0.01°; 0.00018° in high-resolution mode | |
| Display Resolution | 0.01° | |
| Digital Setting Accuracy | ±1°C | |
| Digital Setting Repeatability | ±0.01°C | |
| Access Opening | 120 x 172 mm (4.7 x 6.8 in) | |
| Depth | 457 mm (18 in) without Liquid-in-Glass Thermometer Cal Kit | |
| 482 mm (19 in) with Liquid-in-Glass Thermometer Cal Kit | ||
| Wetted Parts | 304 stainless steel | |
| Power† | 6331 | 115 VAC (±10 %), 50/60 Hz, 14.8 A or |
| 230 VAC (±10 %), 50/60 Hz, 7.4 A, specify | ||
| 7321 | 115 VAC (±10 %), 60 Hz, 14 A or | |
| 230 VAC (±10 %), 50 Hz, 7 A, specify | ||
| 7341 | 115 VAC (±10 %), 60 Hz, 16 A or | |
| 230 VAC (±10 %), 50 Hz, 8 A, specify | ||
| 7381 | 230 VAC (±10 %), 50 or 60 Hz, specify, 10 A | |
| Volume | 15.9 liters (4.2 gal) | |
| Size (HxWxD) | 1067 x 356 x 788 mm (940 mm from floor to tank access opening) [42 x 14 x 31 in (37 in from floor to tank access opening)] | |
| Weight | 6331 | 41 kg (90 lb.) |
| 7321 | 62 kg (137 lb.) | |
| 7341 | 68 kg (150 lb.) | |
| 7381 | 91 kg (200 lb.) | |
| Automation | Use the 1586A Super-DAQ to automate temperature sensor calibration | |
