
- Description
- Specifications
- Documents

Features and Specifications
Temperature range at 23 C: -95 C to 140 C
Stability: 0.015 C full range
Axial uniformity at 40 mm (1.6 in): 0.05 C full range
Radial gradient: 0.01 C full range
Resolution: 0.01 degree
Immersion (well) depth: 160 mm (6.3 in)
Fast cooling time:
23 C to –90 C: 80 minutes
23 C to –95 C: 90 minutes
140 C to 23 C: 60 minutes
Highlights
Dual heater zone
Fast time to temperature and small footprint
Define up to eight set-point temperatures;
automatically ramp to and "soak" at each set-pointDisplay: LCD, C or F user selectable
Computer interface: RS-232, and USB Serial included
Built-in front and back handles for easy two-handed carry
Conforms to EURAMET cg-13 guidance on measurement practices
Insert F Specs
Metric comparison misc with 0.25 inch hole: 3 mm (x2), 4 mm (x2), 6 mm (x1)
9190A-F-P-156 Overview
The Fluke 9190A-F-P-156 Ultra-Cool Field Metrology Well exhibits an extensive temperature range, spanning from -95 to 140 degrees Celsius, with an accuracy of plus-or-minus 0.015 degrees Celsius. This wide range allows it to accommodate the coldest and warmest temperatures needed in pharmaceutical, biomedical, and food processing applications. Unlike traditional calibration baths, the 9190A-F-P-156 operates at ultra-cold temperatures, which are not typically achievable with bath fluids. Its dry-block design eliminates the need for such fluids, ensuring clean rooms stay pristine and making transportation easier. Additionally, this calibrator provides rapid heating and cooling rates. The calibrator also includes insert "F" with metric comparison miscellaneous holes holes for accommodating probes.
Besides the 9190A-F-P-156 Ultra-Cool Field Metrology Well's exceptional temperature stability, its process option denoted as "-P," features 4-20 mA connectors, 24 V dc loop power, a reference thermometer input, and a 4-wire PRT/RTD input. The reference sensor control minimizes the impact of axial gradients when aligning a reference PRT with short sensors. Other process features include:
Set-point temperature control gets passed from the internal sensor to external reference PRT
Controls the well temperature based on its measurement and position inside the well
Automate calibrations of PRTs, thermocouples, and other industrial thermometers
Accepts common thermocouples with mini-jack termination
Thermocouple Input Types: J, K, T, E, R, S, M, L, U, N, C
Smart connector input accepts –A terminated reference PRTs (INFO-CON)
Reference resistance range 0 to 400 ohm

The –P (process version) Panel of the 9190A
1) PRT Reference Thermometer 6-pin DIN smart connector
2) 4–20 mA connector allows current and/or voltage probes
to be connected for measurement and includes a 24 V loop
power supply when needed to power common transmitters
3) PRT/RTD connector for 4-,3-, and 2- wire measurement
4) Thermocouple connector (subminiature)
5) Fuse for the 4–20 mA circuit
The 9190A Series: Best-in-Class Stability
The Fluke 9190A Series Ultra-Cool Field Metrology Wells are recognized as the market's most precise and steady cold temperature dry-block. They are perfectly suited for tasks requiring rigorous quality control and adherence to regulatory processes. Such tasks encompass on-site verification and calibration of RTDs, thermocouples, thermometers, and sensors that are utilized with process control apparatus like medical freezers, lab refrigerators, cold rooms, blood banks, sterilizers (autoclaves), and freeze dryers.
Series Models
9190A-X: –95 C to 140 C, with 9190-INSX (insert)
9190A-X-P: –95 C to 140 C, with 9190-INSX (insert), with Process Electronics
Available Inserts
Insert A, imperial miscellaneous holes: 1/4 inch (x3), 1/8 inch, 3/16 inch, 3/8 inch
Insert B, imperial comparison holes: 1/4 inch (x2), 3/8 inch (x2) 3/16 inch (x2)
Insert C, Six 0.25 inch holes
Insert D, metric comparison holes: 3 mm (x2), 4 mm (x2), 6 mm (x2)
Insert E, metric miscellaneous holes with 0.25 inch hole: 3 mm, 4 mm, 6 mm, 8 mm, 10 mm
Insert F, metric comparison miscellaneous holes with 0.25 inch hole: 3 mm (x2), 4 mm (x2), 6 mm (x1)
Insert Y, custom insert
Insert Z, blank
What's in the Box
9190A-F-P-156 Dry-Well, Insert F
2-meter (6-foot) Mains Power Cord
USB Cable
Getting Started Manual
Report of Calibration and Calibration Label
Well Insulator Cap
Insert Removal Tool
Clamp-on Ferrites (4)
6-pin DIN Connector
Test Lead Kit