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Fluke 9173 Field Metrology Well
  • Fluke 9173 Field Metrology Well
  • Fluke 9173 Field Metrology Well
  • Fluke 9173 Field Metrology Well

Fluke 9173 Field Metrology Well

Fluke Calibration authorised distributor.

Includes: Fluke 9173 Calibrator, Insert as specified (by user), Interface-IT Software, RS-232 Cable, NIST Traceable Calibration Certificate.

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Fluke’s 9173 Metrology Well is designed to be a stable heat source that can be used in a laboratory or field environment. With a calibrated display and an optional built-in reference thermometer input (designated with “-R”), Metrology Wells may also be used as a reference standard.

The LCD display continuously shows many useful operating parameters including the block temperature, block stability, heating and cooling status, and current set-point. The temperature may be easily set with the control buttons to any desired temperature within the calibrator’s specified range.

Any of six standard inserts may be ordered with each unit, accommodating a variety of metric- and imperial-sized probe diameters. Please see the Model 9173 datasheet for options.


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 50°C to 700°C.

Fluke 9173 Specifications
Range (at 23°C ambient) 50°C to 700°C1 (122°F to 1292°F).
Display accuracy ±0.2°C: 50°C to 425°C
±0.25°C: 425°C to 660°C.
Stability ±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 ±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: 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 425°C
±0.04°C at 700°C.
Hysteresis 0.07°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 235 min: 700°C to 50°C
153 min: 700°C to 100°C.
Heating time 46 min: 50°C to 700°C.
Size (H x W x D) 366 x 203 x 323 mm (14.4 x 8 x 12.7 in).
Weight 15 kg (33 lb).
Power 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 100°C, 200°C, 350°C, 500°C, and 660°C.
1. 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 9173 warranty One-year.


Fluke 9170 Series Datasheet

PDF Specifications of the Fluke 9170, 9171, 9172, & 9173 Metrology Well Calibrators

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Fluke 9173 Field Metrology Well
9173-INSA Insert “A” 9173, Al-Brnz, Misc Holes. 2460001
9173-INSB Insert “B” 9173, Al-Brnz, Comparison Holes. 2460012
9173-INSC Insert “C” 9173, Al-Brnz, 0.25-inch Holes. 2460020
9173-INSD Insert “D” 9173, Al-Brnz, Comparison Metric Holes. 2460035
9173-INSE Insert “E” 9173, Al-Brnz, Misc Metric Holes, w/0.25-inch Ref Hole. 2460047
9173-INSF Insert “F” 9173, Al-Brnz, Metric Comparison Holes, w/0.25-inch Ref Hole. 2460058
9173-INSZ Insert “Z” 9173, Al-Brnz, Blank. 2460073
9170-DCAS Carrying case 9170-3. 2460099

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