Widest temperature range available in a single dry-well
• Combined range from –30 °C to 670 °C, one unit – two blocks
• Two independent temperature controllers (hot and cold side)
• Stability to ±0.02 °C
• Multi-hole wells for calibrating up to eight probes simultaneously

To give you the widest temperature range available in a dry-well calibrator, we’ve combined two of our most popular units. The 9011 allows temperature probes to be calibrated from –30 °C to 670 °C in a single unit.

Key features
Ultra-cool dry-block calibrator with best-in-class stability

The Fluke 9190A Ultra-Cool Field Metrology Well is the most accurate and stable, cold temperature dry-block on the market. It’s ideal for applications that demand strict quality control and regulatory process compliance. These applications include on-location validation and calibration of RTDs, thermocouples, thermometers, and sensors used with process control equipment such as medical freezers, laboratory refrigerators, cold rooms, blood banks, sterilizers (autoclaves), and freeze dryers.

Wide temperature range
–95 °C to 140 °C

Excellent accuracy
Accuracy using built-in referencethermometer readout: ±0.05 °C full range
Display accuracy: ±0.2 °C full range
Best-in-class stability
±0.015 °C full range

Fast cooling time
23 °C to –90 °C: 80 minutes
23 °C to –95 °C: 90 minutes
140 °C to 23 °C: 60 minutes

Portability
Weighs only 16 kg (35 lbs)
Built-in front and back handlesfor easy two-handed carry
Best measurement practices
Conforms with EURAMET cg-13 guidance on measurement practices for temperature calibrators

Accurate enough for lab use, and rugged and portable enough to take anywhere
• 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

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 Calibration's (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.

(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.)

Key features
• Calibrate up to four tri-clamp sanitary sensors per batch with ± 0.1 °C temperature display accuracy.
• Covers a wide temperature range: 6109A: 35 °C to 250 °C
• 7109A: -25 °C to 140 °C.
• Stainless steel casing that withstands harsh cleaning solutions; it's easy to transport and maintain.