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Accurate for the lab yet rugged and portable enough for the field
- - Best-performing dry block (accuracy, stability, uniformity) in the world
- - Immersion depth up to 8 inches
- - Optional ITS-90 reference sensor input reads PRTs to ±0.006 °C
- - Models with Temperature ranges from -45 °C to 700 °C
With groundbreaking new proprietary electronics from Fluke Calibration's (patents pending), dry block Metrology Wells let you bring lab-quality performance into whatever field environment you may work in. New analog and digital control techniques provide stability as good as ±0.005 °C. And with dual-zone control, axial uniformity is as good as ±0.02 °C over a 60 mm (2.36 in) zone. This type of performance doesn’t exist anywhere else outside of fluid baths.
In short, there are six critical components of performance in an industrial heat source (which the European metrology community explains in EA-10/13): calibrated display accuracy, stability, vertical uniformity, radial (well-to-well) uniformity, impact from loading, and hysteresis. We added a seventh in the form of a legitimate reference thermometer input and created an entirely new product category: Metrology Grade Wells.
These Metrology Grade Wells are the only products on the market supported by published specifications addressing every performance category in the EA-10/13.
The Model 9170 achieves the lowest temperatures of the product family; reaching –45 °C in normal room conditions. The 9170 is stable to ±0.005 °C over its full temperature range (up to 140 °C) and has 160 mm (6.3 in) of immersion depth. With axial uniformity of ±0.02 °C and radial uniformity of ±0.01 °C, this model delivers exceptional uncertainty budgets and is perfect for a variety of pharmaceutical and other applications.
Insert Options: 
| Range (at 23°C ambient) | –45°C to 140°C (–49°F to 284°F) | ||
| Display accuracy | ±0.1°C full range | ||
| Stability | ±0.005°C full range | ||
| Axial uniformity | ±0.1°C at –45°C ±0.04°C at –35°C ±0.02°C at 0°C ±0.07°C at 140°C | ||
| Radial uniformity | ±0.01°C full range | ||
| Loading effect (with a 6.35 mm reference probe and three 6.35 mm probes) | ±0.02°C at –45°C ±0.005°C at –35°C ±0.01°C at 140°C | ||
| Hysteresis | 0.025°C | ||
| Well depth | 160 mm (6.3 in) | ||
| Resolution | 0.001°C | ||
| Display | LCD, °C or °F, user-selectable | ||
| Key pad | Ten key with decimal and ± button. Function keys, menu key, and °C / °F key. | ||
| Cooling time | 44 min: 23°C to –45°C 19 min: 23°C to –30°C 19 min: 140°C to 23°C | ||
| Heating time | 32 min: 23°C to 140°C 45 min: –45°C to 140°C | ||
| Size (H x W x D) | 366 x 203 x 323 mm (14.4 x 8 x 12.7 in) | ||
| Weight | 14.2 kg (31.5 lb) | ||
| Power | 115 V AC (±10%), or 230 V AC (±10%), 50/60 Hz, 550 W | ||
| Computer interface | RS-232 Interface with 9930 Interface-it control software included | ||
| Traceable calibration (NIST) | Data at –45°C, 0°C, 50°C, 100°C, and 140°C | ||
| Specifications | Built-in Reference Input | ||
| Temperature range | –200°C to 962°C (–328°F to 1764°F) | ||
| Resistance range | 0 Ω to 400 Ω, auto-ranging | ||
| Characterizations | ITS-90 subranges 4, 6, 7, 8, 9, 10, and 11 Callendar-Van Dusen (CVD): R0, a, b, d | ||
| Resistance accuracy | 0 Ω to 20 Ω: 0.0005 W 20 Ω to 400 Ω: 25 ppm | ||
| Temperature accuracy (does not include probe uncertainty) | 10 Ω PRTs: ±0.013°C at 0°C ±0.014°C at 155°C ±0.019°C at 425°C ±0.028°C at 700°C | 25 Ω and 100 Ω PRTs: ±0.005°C at –100°C ±0.007°C at 0°C ±0.011°C at 155°C ±0.013°C at 225°C ±0.019°C at 425°C ±0.027°C at 661°C | |
| Resistance resolution | 0 Ω to 20 Ω: 0.0001 Ω 20 Ω to 400 Ω: 0.001 Ω | ||
| Measurement period | 1 second | ||
| Probe connection | 4-wire with shield, 5-pin DIN connector | ||
| Calibration | NVLAP accredited (built-in reference input only), NIST-traceable calibration provided | ||
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