Fluke 9173-DW-R-156 Metrology Well, No Insert

Well Features and Specifications

• Built-in reference thermometer input
• Range (at 23 C ambient): 50 C to 700 C (122 F to 1292 F)
• Display accuracy: ±0.2 C at 425 C, ±0.25 C at 660 C
• Stability:
  • ±0.005 C to 100 C
  • ±0.01 C to 425 C
  • ±0.03 C to 700 C
• Axial uniformity (60 mm):
  • ±0.1 C at 100 C
  • ±0.25 C at 425 C
  • ±0.4 C at 700 C
• Radial uniformity:
  • ±0.01 C at 100 C
  • ±0.025 C at 425 C
  • ±0.04 C at 700 C
• Well depth: 203 mm (8 in)
• Resolution: 0.001 C
• Display: LCD, C or F, user-selectable
• RS-232 serial interface
• 8 temperature set points with "ramp and soak" times between each
• Automated "switch test" protocol

This model does not include an Insert

9173 Metrology Well Overview

The Model 9173 is a high-performance calibration tool designed for thermometers operating between 50 C and 700 C. With an immersion depth of 8 inches (203 mm), it is particularly suitable for calibrating thermometers at high temperatures. The display accuracy of ±0.25 C at 700 C, along with its stability and uniformity performance, dramatically reduces uncertainty budgets for high-temperature calibrations.

Like the rest of the 9170 Series Metrology Wells, the Model 9173 minimizes temperature gradients, loading effects, and hysteresis, making the calibration of the display much more meaningful. It utilizes only traceable, accredited PRTs for calibrating Metrology Wells, and Fluke's proprietary electronics consistently demonstrate repeatable accuracy.

The LCD display of the Model 9173 continuously shows many useful operating parameters, including the block temperature, block stability, heating and cooling status, and current set-point. The temperature can be easily set with the control buttons to any desired temperature within the calibrator's specified range.

The Model 9173 comes with an RS-232 serial interface and is compatible with Model 9938 MET/TEMP II software for completely automated calibrations of RTDs, thermocouples, and thermistors.

Included Built-In Reference Thermometry

Fluke's Tweener measurement technology is now directly integrated into its Metrology Well models having the -R option. This feature can accommodate 100-, 25-, and 10-ohm PRTs. It can accurately read thermometer probes from ±0.006 C at 0 C to ±0.027 C at 661 C, excluding probe errors. It is compatible with all PRTs sold by Fluke Calibration and connects to Metrology Wells using a 5-pin DIN connector.

The Tweener circuit stands out from the measurement electronics in many drywells for two main reasons. Firstly, it can accept unique ITS-90 (International Temperature Scale of 1990) characterization coefficients from reference thermometers, enabling you to fully utilize the precision of those thermometers. Secondly, it includes a traceable, accredited calibration, giving you complete trust in the accuracy of its measurements.

9170 Series Metrology Wells

Fluke's Hart Metrology Wells serve as stable heat sources suitable for both laboratory and field use. These wells come equipped with a calibrated display and an optional built-in reference thermometer input (marked with -R), making them suitable for use as reference standards.

Notably, Metrology Wells feature interchangeable probe sleeves that accommodate probes of varying diameters. Their controllers utilize a PRT (Platinum Resistance Thermometer) sensor along with thermoelectric modules or heaters to achieve consistent and uniform temperatures throughout the block.

These Metrology Wells are available in four models: 9170, 9171, 9172, and 9173. They offer reliable performance for temperature calibration and measurement tasks. Any of six standard inserts (A, B, C, D, E, or F) may be ordered with each unit, accommodating a variety of metric- and imperial-sized probe diameters.

• 9170: Achieves the lowest temperatures of the series, ranging from -45 C to 140 C with 160 mm (6.3 in) of immersion depth
• 9171: Provides more depth at 203 mm (8 in) of immersion over temperatures from -30 C all the way to 155 C
• 9172: Temperatures from 35 C to 425 C with 203 mm (8 in) of immersion and reduces stem conduction errors at high temperatures
• 9173: Stability and uniformity performance for work between 50 C and 700 C with immersion depth of 203 mm (8 in)

What's in the Box

• 9173-DW-R-156 Metrology Well, No Insert
• Power Cord
• RS-232 Cable
• Getting Started Guide
• User's Guide
• Report of Calibration and calibration label
• 9930 Interface-it Software and User’s Guide