The Fluke 9100S Handheld Dry-Well Temperature Calibrator, configuration order code 9100S-A-256, is engineered by Fluke Calibration – the global gold standard in precision measurement and metrological instruments. Recognized as the world’s smallest and most portable dry-well field calibrator, the Fluke 9100S delivers lab-grade accuracy directly to plant floors and field environments. This compact powerhouse allows instrumentation and maintenance engineers to verify and calibrate temperature sensors in situ, eliminating the downtime and costs associated with dismantling field probes and dispatching them to external metrology laboratories.

At the heart of the Fluke 9100S-A-256 is Fluke Calibration’s proprietary precision temperature controller coupled with a high-grade platinum resistance sensor. Driven by a specialized Triac heater, the unit delivers ultra-rapid heating performance, soaring from 35 °C up to 375 °C in just 9.5 minutes, backed by an industry-leading stabilization duration of only 5 minutes. The instrument achieves an exceptional accuracy rating of ±0.25 °C at 50 °C and 100 °C, and ±0.5 °C at 375 °C, with a baseline stability of ±0.07 °C at 50 °C. Featuring a well-to-well radial uniformity of ±0.2 °C, it enables operators to insert a reference probe alongside the device under test (DUT) to execute comparative calibrations with unquestioned confidence.

The 9100S-A-256 model comes pre-fitted with a non-interchangeable solid alloy constant-temperature Block A, housing six precisely drilled insertion wells: 1/4", 5/32", 1/8", 1/16", and two 3/16" probe diameters with a nominal well immersion depth of 102 mm (4 inches). This configuration accommodates virtually all standard diameter temperature probes deployed in industrial processing. Powered by standard 230V AC mains (code 256) and equipped with an RS-232 serial communication interface and complimentary Interface-it software, users can automate calibration test sequences and record certified calibration data. Weighing a mere 1 kg (2.2 lbs) with an integrated tilt prop stand, the Fluke 9100S-A-256 stands as the ultimate portable field standard for pharmaceutical, food and beverage, petrochemical, power generation, and automotive processing facilities.

• Manufacturer: Fluke Calibration (Fluke Corporation)
• Origin: EU / China (Fluke Global Metrology Standard)
• Product Series: Handheld Dry-Well Temperature Calibrator
• Order Model Code: 9100S-A-256
• Temperature Block Configuration: Fixed Block A (6 probe holes: 1/4", 5/32", 1/8", 1/16", and two 3/16" wells)
• Well Immersion Depth: 102 mm (4.0 in); 1/16" hole is 89 mm (3.5 in) deep
• Operating Temperature Range: +35 °C to +375 °C (+95 °F to +707 °F)
• Measurement Accuracy:
  - ±0.25 °C at 50 °C
  - ±0.25 °C at 100 °C
  - ±0.5 °C at 375 °C
• Thermal Stability:
  - ±0.07 °C at 50 °C
  - ±0.1 °C at 100 °C
  - ±0.3 °C at 375 °C
• Well-to-Well Uniformity: ±0.2 °C (between wells of equal depth with identical sensor sizes)
• Display Resolution: 0.1 °C or 0.1 °F
• Heating Time: 35 °C to 375 °C in 9.5 minutes
• Cooling Time: 375 °C to 100 °C in 14 minutes
• Stabilization Time: 5 minutes
• PC Communication Interface: RS-232 serial connection included with Interface-it software
• Operating Power Supply (Code 256): 230V AC (±10%), 0.8 A, 45–55 Hz, 175 W
• Calibration Documentation: NIST-traceable calibration report included (data points at 50, 100, 150, 200, 250, 300, and 375 °C)
• Physical Dimensions (H × W × D): 57 × 125 × 150 mm (2.25 × 4.9 × 6.1 inches)
• Unit Net Weight: 1.0 kg (2 lbs 3 oz)
• Applicable Industries: Pharmaceutical manufacturing and GMP/FDA cleanrooms, food, dairy, and beverage processing (F&B), thermal power stations and gas turbine plants, oil and gas refineries, chemical production, automotive manufacturing, accredited ISO/IEC 17025 metrology calibration laboratories, and industrial process maintenance facilities.