Fluke 9190A Ultra-Cool Field Metrology Well

The Fluke 9190A Ultra-Cool Field Metrology Well is a highly accurate, stable dry-block calibrator designed for stringent quality control and regulatory compliance. It enables on-site validation and calibration of RTDs, thermocouples, and thermometers, making it ideal for pharmeceutical, biomedical, and food processing applications.

Lightweight and portable, the 9190A offers a wide temperature range, fast heating and cooling times, and superior stability—outperforming calibration baths in efficiency. Built with decades of dry-block expertise, it conforms to EURAMET CG-13 best practices for temperature calibration, ensuring precise accuracy, stability, and uniformity.

The 9190A includes one insert, with additional hole size options available (view page 8 of datasheet)

Product Info Product Options Related Products

Temperature range at 23°C	–95°C - 140°C (–139°F - 284°F)
Display accuracy	±0.2°C full range
Accuracy with external reference	±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 - 35°C, 0% to 90%
Operating conditions	RH (non-condensing) < 2000 m altitude
Environmental conditions for all specifications except temperature range	13°C ... 33°C
Immersion (well) depth	160 mm (6.3 in)
Well diameter	30 mm (1.18 in)
Heating time	–95°C ... 140°C: 40 min
Cooling time	23°C ... –90°C: 80 min
	23°C ... –95°C: 90 min
	140°C ... 23°C: 60 min
Stabilization time	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 - 115 V (±10%) 50/60 Hz, 575 W
Power requirements	200 V - 230 V (±10%) 50/60 Hz, 575 W
System fuse ratings	115 V: 6.3 A T 250 V
System fuse ratings	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