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Ultra-cool dry-block calibrator with best-in-class stability
The Fluke Calibration 9190A Ultra-Cool Field Metrology Well is the most accurate and stable, cold temperature dry-block on the market. It’s ideal for applications that demand strict quality control and regulatory process compliance. These applications include on-location validation and calibration of RTDs, thermocouples, thermometers, and sensors used with process control equipment such as medical freezers, laboratory refrigerators, cold rooms, blood banks, sterilizers (autoclaves), and freeze dryers.
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
Fast cooling time
23 °C to –90 °C: 80 minutes
23 °C to –95 °C: 90 minutes
140 °C to 23 °C: 60 minutes
Portability
Weighs only 16 kg (35 lbs)
Built-in front and back handles for easy two-handed carry
Best measurement practices
Conforms with EURAMET cg-13 guidance on measurement practices for temperature calibrators
Great for clean room environments
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| Click on image to enlarge. |
Calibration baths are the most stable and uniform temperature sources available, but they aren’t a good fit for clean rooms. The size of a bath limits its portability, and bath fluids can easily spill and give off vapors. The 9190A Ultra-Cool Field Metrology Well is a great alternative. Its wide temperature range brackets the coldest and highest temperature ranges required for pharmaceutical, biomedical and food processing applications. The 9190A is small and lightweight, making it easy to transport. And since it does not use heat transfer fluids, clean rooms stay clean. The 9190A cooling and heating times are faster than a calibration bath—that means calibration work gets done more quickly.
An accurate temperature source is critical for dependable process measurements
Unreliable process measurements can have a damaging impact on business, leading to poor product quality, recalls, fines, waste, and lost profits. Ultimately, measurements are only as good as the temperature sources used to calibrate the measurement equipment. The 9190A Ultra-Cool Field Metrology Well incorporates the best technology and design expertise gained from decades of dry-block development experience. The 9190A conforms with EURAMET cg-13 guidelines for best measurement practices for temperature block calibrators. As a result, you can be assured that the 9190A specifications for accuracy, stability, axial (vertical) uniformity, radial (well-to-well) uniformity, loading, and hysteresis have been thoroughly and carefully defined and tested. With a 9190A Ultra-Cool Field Metrology Well, you can be confident you’re using the most accurate and stable ultra-cool dry-block calibrator available. And that will have a positive impact on your business.
| Base unit 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 reference [3] | ± 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 time [1] | –95 °C to 140 °C: 40 min |
| Cooling time [1] | 23 °C to –90 °C: 80 min |
| 23 °C to –95 °C: 90 min | |
| 140 °C to 23 °C: 60 min | |
| Stabilization time [2] | 15 min |
| Resolution | 0.01 ° |
| Display | LCD, °C or °F user selectable |
| Size (H x W x D) | 380 mm x 205 mm x 480 mm (14.9 in x 8.0 in x 18.8 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 interface |
| 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 accuracy [4] | 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 accuracy [4] | 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 accuracy [5] | 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 100 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 |
Notes:
[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 Ωto 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.
| Accessory | Description |
|---|---|
| 9190-INSA |
Insert "A" 9190A, imperial miscellaneous holes |
| 9190-INSB |
Insert "B" 9190A, imperial comparison holes |
| 9190-INSC |
Insert "C" 9190A, 0.25 inch holes |
| 9190-INSD |
Insert "D" 9190A, metric comparison holes |
| 9190-INSE |
Insert "E" 9190A, metric miscellaneous holes with 0.25 inch hole |
| 9190-INSF |
Insert "F" 9190A, metric comparison miscellaneous holes with 0.25 inch hole |
| 9190-INSZ |
Insert “Z” 9190, blank |
| 9190-INSTC |
TC insert, 9190A, RADIAL GROOVES, WITH INSULATOR |
| 9190-INSY1 |
Insert "Y1" 9190A, custom insert with blank insulator. |
| 9190-INSY2 |
Insert "Y2" 9190A, custom insert with custom insulator.
|
| 9190-CASE |
Carrying Case, 9190A Ultra-Cool Field Metrology Well
|
| Papers / Articles |
|---|
The Development of a High-Temperature PRT Calibration Process Based on Dry-Block Calibrators (60.55 KB) |
| Video |
|---|
| 9190A Ultra-Cool Field Metrology Well Video Introduction |