ST-U22 | Kele | Temperature Sensors & Transmitters

3K Universal-Mount Thermistor @ 77°F (25°C), Type II (Gray Leads)

Brand:Kele

MPN:ST-U22

SKU:ST-U22

List Price:

$35.00

Today's Price:

$18.20



13 in stock

product specifications

Accessory

T81U-XR, T85U-XR, T91U-XR, OSAB, F-1000-331

Enclosure Rating

NEMA 3R, IP22

Application

Air Handling Unit, Duct Temperature

Probe Length

4.875 in

Sensor Element

3K Thermistor

Type

Thermistor

Output Signal

Resistance

product series specifications

Accuracy: ±0.36°F (0.2°C)

Thermistor: ±0.36°F (0.2°C)

RTD:

Type 63: ±0.72°F (0.40°C)

Type 71: +/-0.0774°F (0.043°C)

Type 81, 85: ±0.27°F (0.15°C)

Type 91: ±0.54°F (0.30°C)

Sensor Type:

Thermistor: 2.252 kO, 3 kO, 10 kO Type II, III & III w/11K shunt, 20 kO, 100 kO

RTD:

Type 63: 1000O Nickel

Type 71, 81: 100O Pt 385 Curve

Type 85: 1000O Pt 385 Curve

Type 91: 1000O Pt 375 Curve

Temperature Range: -40° to 221°F (-40° to 105°C)

Temperature Coefficient: Thermistor: Negative temperature coefficient; RTD: Positive temperature coefficient

Temperature Stability:

Thermistor: 0.24°F (0.13°C) over five years

RTD: Max 0.04% after 1k hours @ 500 °F

Heat Dissipation: 2.7 mW/°C (power needed to raise the temperature by 1°C)

Enclosure Rating: NEMA 3R, UL 94V-0, plenum-rated plastic, IP22 UV protected with snap-off cover

Mounting: Directly to duct, immersion well, or OSA wall mount with appropriate bracket

Wiring Terminations: 8' (2.4m) of 24 AWG pigtails with pre-stripped ends, type 71 & 81 have 18" leads

Weight: Weight: 0.25 lb (0.1 Kg) w/o options

Approvals: CE

Warranty: Lifetime

product series features

  • Lifetime warranty
  • Flame retardant, plenum rated
  • Wide selection of thermistor and RTD curves
  • Adaptable with many mounting options
  • 304 stainless steel probes
  • Easy to mount to duct, well, or wall
  • Waterproof probe
  • Paintable plastic
  • NEMA 3R, IP22
  • Brass or stainless well
  • Outside air kit
  • Custom lengths
  • Matched sensor pairs
  • Ultra high accuracy optional

more information & related documents

Series Description

The Precon Model ST-U Universal Mount Sensor from PreCon provides precise remote temperature sensing in multiple applications such as duct, OSA, and immersion installations for Building Automation Systems, BAS. The active sensing element is a highly stable precision thermistor material or platinum RTD. The sensing element is sealed with a thermally conductive compound in a 4-7/8 in (12.38 cm) long stainless steel probe and is attached to a 2.5 in (6.35 cm) square enclosure. These sensors have tabs on the enclosure to provide mounting ears for direct duct mounting. They can be easily removed if they are not needed. This multipurpose enclosure minimizes the number of stock parts required to handle multiple applications.

Kele Description

TEMP SENSOR, DUCT, 3K, 4-7/8", NO ENCL, NO OUTPUT

Manufacturer

Kele

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