Fluke Calibration 9172 Field Metrology Well

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.

Fluke Calibration 9172 Field Metrology Well Specifications

• Range (at 23°C ambient) : 35°C to 425°C (95°F to 797°F)
• Display accuracy : ±0.1°C: 35°C to 100°C
  ±0.15°C: 100°C to 225°C
  ±0.2°C: 225°C to 425°C
• Stability : ±0.005°C: 35°C to 100°C
  ±0.008°C: 100°C to 225°C
  ±0.01°C: 225°C to 425°C
• Axial uniformity : ±0.05°C: 35°C to 100°C
  ±0.1°C: 100°C to 225°C
  ±0.2°C: 225°C to 425°C
• Radial uniformity : ±0.01°C: 35°C to 100°C
  ±0.02°C: 100°C to 225°C
  ±0.025°C: 225°C to 425°C
• Loading effect (with a 6.35 mm reference probe and three 6.35 mm probes) : ±0.01°C full range
• Hysteresis : 0.04°C
• Well depth : 203 mm (8 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 : 220 min: 425°C to 35°C
  100 min: 425°C to 100°C
• Heating time : 27 min: 35°C to 425°C
• Size (H x W x D) : 366 x 203 x 323 mm (14.4 x 8 x 12.7 in)
• Weight : 13.2 kg (29 lb)
• Power : 115 V AC (±10%), or
  230 V AC (±10%), 50/60 Hz, 1025 W
• Computer interface : RS-232 Interface
• Traceable calibration (NIST) : Data at 100°C, 150°C, 250°C, 350°C, and 425°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°C25 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