Fluke Calibration 9170/9171 Series Metrology Well

  • 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’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.

(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.)



Description

Specifications

9170 9171 9172 9173
Range
(at 23 °C ambient)

–45 °C to 140 °C
(–49 °F to 284 °F)
–30 °C to 155 °C
(–22 °F to 311 °F)
35 °C to 425 °C
(95 °F to 797 °F)
50 °C to 700 °C†
(122 °F to 1292 °F)
Display Accuracy

± 0.1 °C full range ± 0.1 °C: 35 °C to 100 °C
± 0.15 °C: 100 °C to 225 °C
± 0.2 °C: 225 °C to 425 °C
± 0.2 °C: 50 °C to 425 °C
± 0.25 °C: 425 °C to 660 °C
Stability

± 0.005 °C full range ± 0.005 °C: 35 °C to 100 °C
± 0.008 °C: 100 °C to 225 °C
± 0.01 °C: 225 °C to 425 °C
± 0.005 °C: 50 °C to 100 °C
± 0.01 °C: 100 °C to 425 °C
± 0.03 °C: 425 °C to 700 °C
Axial Uniformity
(60 mm)

± 0.1 °C at –45 °C
± 0.04 °C at –35 °C
± 0.02 °C at 0 °C
± 0.07 °C at 140 °C
± 0.025 °C at –30 °C
± 0.02 °C at 0 °C± 0.07 °C at 155 °C
± 0.05 °C: 35 °C to 100 °C
± 0.1 °C: 100 °C to 225 °C
± 0.2 °C: 225 °C to 425 °C
± 0.1 °C: 50 °C to 100 °C
± 0.25 °C: 100 °C to 425 °C± 0.4 °C: 425 °C to 700 °C
Radial Uniformity

± 0.01 °C full range ± 0.01 °C: 35 °C to 100 °C
± 0.02 °C: 100 °C to 225 °C
± 0.025 °C: 225 °C to 425 °C
± 0.01 °C: 50 °C to 100 °C
± 0.025 °C: 100 °C to 425 °C
± 0.04 °C: 425 °C to 700 °C
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
± 0.005 °C at –30 °C
± 0.005 °C at 0 °C
± 0.01 °C at 155 °C
± 0.01 °C full range ± 0.02 °C at 425 °C
± 0.04 °C at 700 °C
Hysteresis 0.025 °C 0.04 °C 0.07 °C
Well Depth 160 mm (6.3 in) 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

44 min: 23 °C to –45 °C
19 min: 23 °C to –30 °C
19 min: 140 °C to 23 °C
30 min: 23 °C to –30 °C
25 min: 155 °C to 23 °C
220 min: 425 °C to 35 °C
100 min: 425 °C to 100 °C
235 min: 700 °C to 50 °C
153 min: 700 °C to 100 °C
Heating Time

32 min: 23 °C to 140 °C
45 min: –45 °C to 140 °C
44 min: 23 °C to 155 °C
56 min: –30 °C to 155 °C
27 min: 35 °C to 425 °C 46 min: 50 °C to 700 °C
Size (HxWxD) 366 x 203 x 323 mm (14.4 x 8 x 12.7 in)
Weight
14.2 kg (31.5 lb) 15 kg (33 lb) 13.2 kg (29 lb) 15 kg (33 lb)
Power

115 V ac (± 10 %), or
230 V ac (± 10 %), 50/60 Hz, 550 W
115 V ac (± 10 %), or
230 V ac (± 10 %), 50/60 Hz, 1025 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 Data at –30 °C, 0 °C, 50 °C, 100 °C, and 155 °C Data at 100 °C, 150 °C, 250 °C, 350 °C, and 425 °C Data at 100 °C, 200 °C, 350 °C, 500 °C, and 660 °C
†Calibrated to 660 °C; reference thermometer recommended at higher temperatures.

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
Fluke Calibration 9170/9171 Series Metrology Well