9170 Series Metrology Wells -
Introduction

Introduction
Every once in a while, a new product comes around that changes the rules. It happened when we introduced handheld dry-wells. It happened when we introduced Micro-Baths. Now we’ve combined bath-level performance with dry-well functionality and legitimate reference thermometry to create Metrology Wells.

With groundbreaking new proprietary electronics from Fluke’s Hart Scientific Division (patents pending), Metrology Wells let you bring lab-quality performance into whatever field environment you might work in. New analog and digital control techniques provide stability as good as ±0.005°C. And with dual-zone control, axial (or “vertical”) uniformity is as good as ±0.02°C over a 60 mm (2.36 in) zone. (That’s 60 mm!) Such 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, for example, in the document EA-10/13): calibrated display accuracy, stability, axial (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 Wells.

Features

• Best-performing industrial heat sources (accuracy, stability, uniformity) in the world. 
• Immersion depth to 203 mm (8 in). 
• Optional ITS-90 reference input reads PRTs to ±0.006°C. 
• Temperature range from –45°C to 700°C. 

(By the way, Metrology Wells are the only products on the market supported by published specifications addressing every performance category in the    EA-10/13. Our specs aren’t just hopes or guidelines. They apply to every Metrology Well we sell.)

Model 9170
The Model 9170 achieves the lowest temperatures of the series, 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.

Model 9171
If you need more depth, the Model 9171 provides 203 mm (8 in) of immersion over temperatures from –30°C all the way to 155°C with full-range stability of ±0.005°C. Just like the 9170, this dry-well has exceptional axial and radial uniformity. The display of the 9171 is calibrated to an accuracy of ±0.1°C over its full range.

Model 9172
The Model 9172 provides temperatures from 35°C to 425°C with a calibrated display accurate to ±0.2°C at 425°C. In addition to exceptional accuracy, the 9172 is stable from ±0.005°C to ±0.01°C, depending on temperature. With    203 mm (8 in) of immersion, the 9172 significantly reduces stem conduction errors at high temperatures.

Model 9173
For work between 50°C and 700°C, the Model 9173 provides unmatched performance. The 9173 has a display accuracy of ±0.25°C at 700°C and an immersion depth of 203 mm (8 in). Stability and uniformity performance of this unit are enough to dramatically reduce uncertainty budgets for calibrations of thermometers at high temperatures.

Of course, there’s still a place in the world for dry-wells or “dry block” calibrators. In fact, Hart makes and will continue to make some of the best performing, portable, fast dry-wells in the world. There’s still nothing better for a quick test of industrial temperature sensor performance.

We just can’t resist the urge, though, to keep coming up with breakthrough product designs that can dramatically impact the ways people work and the results they see. For the absolute best performance in a portable temperature source, Metrology Wells raise the standard to an entirely new level.