Fluke 9190A Ultra-Cool Field Metrology Well
Model#:9190A-A-156Part#:4178780UPC#:0 95969 63548 6
Key features
- Wide temperature range: –95 °C to 140 °C.
- Excellent accuracy
- Accuracy using built-in reference thermometer readout: ± 0.05 °C full range.
- Display accuracy: ± 0.2 °C full range.
- Best-in-class stability: ± 0.015 °C full range
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Product overview: Fluke 9190A Ultra-Cool Field Metrology Well
Ideal for cleanroom environments and demanding calibration work
Cleanroom-Compatible, Ultra-Portable, and Fast
Traditional calibration baths are known for stability and uniformity—but they’re far from ideal for cleanroom use. Their large size, fluid handling requirements, and potential for spills or vapors make them a poor fit for controlled environments.
The Fluke 9190A Ultra-Cool Field Metrology Well offers a smarter solution. Designed specifically for cleanrooms and critical process industries, it provides:
- Wide temperature range suitable for pharmaceutical, biomedical, and food processing needs
- Compact, lightweight design for easy transport and field use
- No heat transfer fluids, keeping your environment contaminant-free
- Faster heating and cooling times than traditional calibration baths—so you complete calibrations faster
Precision You Can Trust for Process Accuracy
Accurate process measurements are essential for quality control. Inaccurate data can lead to product recalls, regulatory penalties, lost profits, and reputational damage. That’s why your calibration equipment needs to be just as dependable as your measurement systems.
The 9190A Ultra-Cool Field Metrology Well delivers:
- Best-in-class accuracy, stability, and uniformity
- Designed using decades of Fluke dry-block technology expertise
- Conformance to EURAMET cg-13 best practices for temperature block calibrators
- Thoroughly tested specs for axial and radial uniformity, hysteresis, and loading effects
Make Every Measurement Count
When you use the 9190A, you’re choosing the most accurate and stable ultra-cool dry-block calibrator available. That confidence translates into better product quality, more efficient compliance, and measurable business impact.
Specifications: Fluke 9190A Ultra-Cool Field Metrology Well
| Specifications | |
| Temperature range at 23°C | –95°C to 140°C (–139°F to 284°F) |
| Display accuracy | ±0.2°C full range |
| Accuracy with external reference3 | ±0.05°C full range |
| 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 |
| Loading effect | (with a 6.35 mm reference probe and three 6.35 mm probes) |
| ±0.006°C full range | |
| (versus display with one 6.35 mm probe) | |
| ±0.25°C at –95°C | |
| ±0.10°C at 140°C | |
| Operating conditions | 0°C to 35°C, 0% to 90% |
| RH (non-condensing) < 2000 m altitude | |
| Environmental conditions for all specifications except temperature range | 13°C to 33°C |
| Immersion (well) depth | 160 mm (6.3 in) |
| Well diameter | 30 mm (1.18 in) |
| Heating time1 | –95°C to 140°C: 40 min |
| Cooling time1 | 23°C to –90°C: 80 min |
| 23°C to –95°C: 90 min | |
| 140°C to 23°C: 60 min | |
| Stabilization time2 | 15 min |
| Resolution | 0.01° |
| Display | LCD, °C or °F user selectable |
| Size (H x W x D) | 480 x 205 x 380 mm (18.8 x 8.0 x 14.9 in) |
| Weight | 16 kg (35 lb) |
| Power requirements | 100 V to 115 V (±10%) 50/60 Hz, 575 W |
| 200 V to 230 V (±10%) 50/60 Hz, 575 W | |
| System fuse ratings | 115 V: 6.3 A T 250 V |
| 230 V: 3.15 A T 250 V | |
| 4–20 mA fuse (-P model only) | 50 mA F 250 V |
| Computer interface | RS-232, and USB Serial included |
| Safety | IEC 61010-1, Installation Category II, Pollution degree 2 |
| Electromagnetic environment | IEC 61326-1: Basic |
| Refrigerants | R32 (Difluoromethane) |
| < 20 g, ASHRAE safety group A2L | |
| R704 (Helium) | |
| < 20 g, ASHRAE safety group A1 | |
| -P Specifications | |
| Built-in reference thermometer readout accuracy (4-wire reference probe)3 | ±0.010°C at –95°C |
| ±0.013°C at –25°C | |
| ±0.015°C at 0°C | |
| ±0.020°C at 50°C | |
| ±0.025°C at 140°C | |
| Reference resistance range | 0 Ω to 400 Ω |
| Reference resistance accuracy4 | 0 Ω to 42 Ω: ±0.0025 Ω 42 Ω to 400 Ω: ±60 ppm of reading |
| Reference characterizations | ITS-90, CVD, IEC-751, resistance |
| Reference measurement capability | 4 wire |
| Reference probe connection | 6-pin din with INFO-CON technology |
| Built-in RTD thermometer readout accuracy | NI-120: ±0.015°C at 0°C |
| PT-100 (385): ±0.02°C at 0°C | |
| PT-100 (3926): ±0.02°C at 0°C | |
| PT-100 (JIS): ±0.02°C at 0°C | |
| RTD resistance range | 0 Ω to 400 Ω |
| Resistance accuracy4 | 0 Ω to 25 Ω: ±0.002 Ω |
| 25 Ω to 400 Ω: ±80 ppm of reading | |
| RTD characterizations | PT-100 (385), (JIS), (3926), NI-120, resistance |
| RTD measurement capability | 2-wire, 3-wire, and 4-wire RTD with jumpers only |
| RTD connection | 4-terminal input |
| Built-in TC thermometer readout accuracy5 | Type J: ±0.70°C at 140°C |
| Type K: ±0.75°C at 140°C | |
| Type T: ±0.60°C at 140°C | |
| Type E: ±0.60°C at 140°C | |
| Type R: ±1.60°C at 140°C | |
| Type S: ±1.60°C at 140°C | |
| Type M: ±0.65°C at 140°C | |
| Type L: ±0.65°C at 140°C | |
| Type U: ±0.70°C at 140°C | |
| Type N: ±0.75°C at 140°C | |
| Type C: ±1.00°C at 140°C | |
| TC millivolt range | –10 mV to 75 mV |
| Voltage accuracy | 0.025% of reading +0.01 mV |
| Internal cold junction compensation accuracy | ±0.35°C (ambient of 13°C to 33°C) |
| TC connection | Miniature connectors (ASTM E1684) |
| Built-in mA readout accuracy | 0.02% of reading + 0.002 mA |
| mA range | Cal 4-22 mA, Spec 4-24 mA |
| mA connection | 2 terminal input |
| Loop power function | 24 V DC loop power |
| Built-in electronics temperature coefficient (0°C to 13°C, 33°C to 50°C) | ±0.005% of range per °C |
| 1. For ambient temperature of 23°C. 2. Time from when the SETPOINT is reached to when the unit is with in stability specification. 3. The temperature range may be limited by the reference probe connected to the readout. The built-in reference accuracy does not include the sensor probe accuracy. It does not include the probe uncertainty or probe characterization errors. 4. Measurement accuracy specifications apply within the operating range and assume 4 wires for PRTs. With 3-wire RTDs add 0.05 Ω to the measurement accuracy plus the maximum possible difference between the resistances of the lead wires. 5. The thermocouple input readout is sensitive to EM fields in the frequency range of 500 MHz to 700 MHz. | |
Models: Fluke 9190A Ultra-Cool Field Metrology Well
9190A-A-156
Fluke 9190A-A-156 Ultra-Cool Field Metrology Well
Insert "A", imperial miscellaneous holes
–95°C to 140°C
Part#: 4178780Insert "A", imperial miscellaneous holes
–95°C to 140°C
UPC#: 0 95969 63548 6
9190A-A-P-156
Fluke 9190A-A-P-156 Ultra-Cool Field Metrology Well
Insert "A", imperial miscellaneous holes
–95°C to 140°C, with Process Electronics
Part#: 4178800Insert "A", imperial miscellaneous holes
–95°C to 140°C, with Process Electronics
UPC#: 0 95969 63550 9
9190A-B-156
Fluke 9190A-B-156 Ultra-Cool Field Metrology Well
Insert "B", imperial comparison holes
–95°C to 140°C
Part#: 4178821Insert "B", imperial comparison holes
–95°C to 140°C
UPC#: 0 95969 63552 3
9190A-B-P-156
Fluke 9190A-B-P-156 Ultra-Cool Field Metrology Well
Insert "B", imperial comparison holes
–95°C to 140°C, with Process Electronics
Part#: 4178842Insert "B", imperial comparison holes
–95°C to 140°C, with Process Electronics
UPC#: 0 95969 63554 7
9190A-C-156
Fluke 9190A-C-156 Ultra-Cool Field Metrology Well
Insert "C", 0.25 inch holes
–95°C to 140°C
Part#: 4178863Insert "C", 0.25 inch holes
–95°C to 140°C
UPC#: 0 95969 63556 1
9190A-C-P-156
Fluke 9190A-C-P-156 Ultra-Cool Field Metrology Well
Insert "C", 0.25 inch holes
–95°C to 140°C, with Process Electronics
Part#: 4178888Insert "C", 0.25 inch holes
–95°C to 140°C, with Process Electronics
UPC#: 0 95969 63558 5
9190A-D-156
Fluke 9190A-D-156 Ultra-Cool Field Metrology Well
Insert "D", metric comparison holes
–95°C to 140°C
Part#: 4178901Insert "D", metric comparison holes
–95°C to 140°C
UPC#: 0 95969 63560 8
9190A-D-P-156
Fluke 9190A-D-P-156 Ultra-Cool Field Metrology Well
Insert "D", metric comparison holes
–95°C to 140°C, with Process Electronics
Part#: 4178935Insert "D", metric comparison holes
–95°C to 140°C, with Process Electronics
UPC#: 0 95969 63563 9
9190A-DW-156
Fluke 9190A-DW-156 Ultra-Cool Field Metrology Well
Insert "DW", metric comparison holes
–95°C to 140°C
Part#: 4178947Insert "DW", metric comparison holes
–95°C to 140°C
UPC#: 0 95969 63564 6
9190A-DW-P-156
Fluke 9190A-DW-P-156 Ultra-Cool Field Metrology Well
Insert "DW", metric comparison holes
–95°C to 140°C, with Process Electronics
Part#: 4178964Insert "DW", metric comparison holes
–95°C to 140°C, with Process Electronics
UPC#: 0 95969 63566 0
9190A-E-156
Fluke 9190A-E-156 Ultra-Cool Field Metrology Well
Insert "E", metric miscellaneous holes with 0.25 inch hole
–95°C to 140°C
Part#: 4178986Insert "E", metric miscellaneous holes with 0.25 inch hole
–95°C to 140°C
UPC#: 0 95969 63568 4
9190A-E-P-156
Fluke 9190A-E-P-156 Ultra-Cool Field Metrology Well
Insert "E", metric miscellaneous holes with 0.25 inch hole
–95°C to 140°C, with Process Electronics
Part#: 4179006Insert "E", metric miscellaneous holes with 0.25 inch hole
–95°C to 140°C, with Process Electronics
UPC#: 0 95969 63570 7
9190A-F-156
Fluke 9190A-F-156 Ultra-Cool Field Metrology Well
Insert "F", metric comparison miscellaneous holes with 0.25 inch hole
–95°C to 140°C
Part#: 4179023Insert "F", metric comparison miscellaneous holes with 0.25 inch hole
–95°C to 140°C
UPC#: 0 95969 63572 1
9190A-F-P-156
Fluke 9190A-F-P-156 Ultra-Cool Field Metrology Well
Insert "F", metric comparison miscellaneous holes with 0.25 inch hole
–95°C to 140°C, with Process Electronics
Part#: 4179045Insert "F", metric comparison miscellaneous holes with 0.25 inch hole
–95°C to 140°C, with Process Electronics
UPC#: 0 95969 63574 5