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Rugged, Accurate, Versatile
Can be used in a variety of applications
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Technical Description

The 109SS consists of a thermistor encased in a sheath made from grade 316 stainless steel. The rugged stainless-steel sheath protects the thermistor allowing the 109SS to be buried or submerged in harsh, corrosive environments. This probe also has a fast time response.

The 109SS's thermistor can survive temperatures up to 100°C, but the overmolded joint and cable should not be exposed to temperatures hotter than +70°C.

109SS-L Specifications

  • Thermistor Description: Micro-BetaCHIP Probe 10K3MCD1,
    0.018” diameter,
    10 kohms at 25°C
  • Measurement Range:
    -40° to +70°C
  • Thermistor Survival Temperature:
    -50° to +100°C
  • Overmolded Joint and Cable Survival Temperature:
    -50° to +70°C
  • Maximum Water Submersion Depth:
    45.7 m (150 ft)
    or 434 kPa (63 psi)
  • Interchangeability Error
    -40°C: ±0.6°C tolerance
    0°C: ±0.38°C tolerance
    25°C: ±0.1°C tolerance
    50°C: ±0.3°C tolerance
    70°C: ±0.4°C tolerance
  • Steinhart-Hart Linearization Equation Error (maximum): 0.02°C at -40°C
  • Time Constant in Air
    Still Air: 31 s
    Air @ 3 m/s: 7.5 s
    Antifreeze/Water Rolling: 0.5 s
  • Stainless-Steel Sheath Diameter:
    0.16 cm (0.063 in.)
  • Stainless-Steel Sheath Length:
    5.84 cm (2.3 in.)
  • Overmolded Joint Diameter:
    1.02 cm (0.40 in.)
  • Overmolded Joint Length:
    4.24 cm (1.67 in.)
  • Cable Description:
    0.56 cm (0.22 in.) diameter
    with Santoprene jacket
  • Cable/Probe Connection: “ATUM” heat shrink, “Macromelt” overmolded joint
  • Weight: 0.1 kg with 3.2 m cable
    (0.2 lb with 10.5 ft cable)

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