FLUKE Calibration 9103/9140 Field Dry-Well

Portable, fast, and accurate temperature sources for on-site calibration

Exceptional Performance in a Compact Design

The Fluke 9103 and 9140 Field Dry-Wells outperform the competition in nearly every category—performance, size, weight, ease of use, calibration simplicity, software integration, and price.

Each unit features:

  • Adjustable heating and cooling rates via the front panel
  • Thermal switch actuation testing
  • Multiple-hole inserts for compatibility with a wide range of probe sizes

Fast Calibration with Minimal Downtime

  • Units are easy to calibrate without opening the case, reducing maintenance costs and downtime
  • All units include a NIST-traceable calibration certificate at no additional charge
  • Factory-tested for accuracy and reliability before shipment

Software Integration

Fluke’s Interface-it software supports:

  • Set-point and ramp rate control
  • Real-time temperature logging
  • Electronic strip chart creation
  • Thermal switch test automation with data collection
  • Windows-based interface with intuitive graphical controls

Whether you need basic control or full automation, Fluke has a software solution ready.

Fluke 9103 – Low-Temperature Field Dry-Well

  • Temperature Range: Down to –25 °C (actual, not below ambient)
  • Stability: ±0.02 °C
  • Display Accuracy: ±0.25 °C across full range
  • Speed:
    • Reaches 0 °C in 8 minutes
    • Reaches 100 °C in 6 minutes

Key Advantage:

Many competitors advertise –45 °C below ambient, which only reaches around –20 °C. The 9103 delivers a true –25 °C in standard room conditions—no walk-in freezer required.

Insert Options:

Choose from four removable inserts to suit your calibration needs:

  • Insert A: One well each from 1/16” to 1/2”
  • Insert B: Two wells each of 3/8”, 1/4”, and 3/16” (ideal for comparison calibrations)
  • Insert C: Six 1/4” wells for multiple probe calibrations
  • Insert D: Three pairs of metric-sized wells

Fluke 9140 – Mid-Temperature Field Dry-Well

  • Temperature Range: 35 °C to 350 °C
  • Stability: ±0.05 °C or better
  • Uniformity:
    • 0.1 °C in small-diameter wells
    • 0.4 °C in largest-diameter wells
  • Speed: Reaches max temperature in 12 minutes
  • Size: Weighs only 6 lbs, easily portable with one hand
  • Display Accuracy: ±0.5 °C

For improved calibration accuracy, use an external thermometer alongside the built-in display.

Insert Options:

Three removable inserts available to accommodate various probe sizes.

Why Choose the 9103 or 9140?

Model Temperature Range Stability Display Accuracy Key Benefits
9103 –25 °C to 110+ °C ±0.02 °C ±0.25 °C True sub-ambient performance without freezer
9140 35 °C to 350 °C ±0.05 °C ±0.5 °C Light, fast, and ideal for field portability

Both models are:

  • Reliable for industrial and lab environments
  • Versatile with multiple insert options
  • Backed by Fluke’s proven calibration technology

In Stock
SKU: FLUKE 9103/9140 Categories: ,