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KTU Thermistor & RTD Sensor
Brand: KeleThe Kele KTU* Series Universal-Mount Thermistor and RTD Sensors provide remote temperature sensing in multiple applications such as duct, OSA, and immersion installations for building automation systems.
The active sensing element is a highly stable thermistor material or platinum RTD.
The sensing element is sealed with a thermally conductive compound in a 4-7/8" (12.38 cm) long stainless steel probe and is attached to a 2.5" (6.35 cm) square enclosure.
The tabs on the enclosure provide mounting ears for direct duct mounting and are easily removable if they are not needed.
This multipurpose enclosure minimizes the number of stock parts required to handle multiple applications.
Features- Flame retardant, plenum rated
- Adaptable with many mounting options
- 304 stainless steel waterproof probes
- Paintable plastic
- NEMA 3R, IP22
Specifications
Brand
Accuracy
- ± 0.28° C (± 0.50° F) - Thermistor
- ± 0.33° C (± 0.60° F) - RTD
Applications
- Building Automation Systems
Approvals & Certifications
- CE
Approvals & Certifications
- Compliance/Conformance
Dissipation
- Heat: 2.7 mW/°C (Power Needed to Raise the Temperature 1° C (1.8° F))
Electrical - Free Leads
- 18” (45 cm) Free Leads - for Typical 81
- 8 feet (2.4 metres) & 25 feet (7.6 metres), 24 AWG Wire Leads
Element
- Sensing Element: Platinum RTDs
Enclosure, Body Material
- Plenum-Rated Plastic, UL 94V-0
Environmental Protection
- IP22
- NEMA 3R
Insertion 'U' Length
- 1” to 108” (2.54 to 274.3 cm)
Materials of Construction
- Well: 304 Stainless Steel
- Well: Brass
Mounting
- Directly to Duct Mount
- Immersion Mount: Well
- OSA Wall Mounted
- Wall Mounting Bracket
Mounting Position
- Horizontal
NACE & NIST
- NIST
NPT Connection
- 1/2” NPT Male
- 1/8” NPT Male
Resistance
- 2.252 to 100 kiloohms - Thermistor
RTD Type
- Typical 81 & 85: 100 & 1,000 ohms Pt385 Curve
- Typical 91: 1,000 ohms Pt375 Curve
Sensor, Probe Connection
- 3-Wire
Sensor, Probe Material
- Seamless 304 Stainless Steel, 4.87” (12.38 cm) Long
Sensor, Probe Type
- RTD
- Thermistor
Stability
- ± 0.13° C (± 0.24° F) over 5-Years - Thermistor
Temperature Coefficient
- Negative Temperature Coefficient - Thermistor
- Positive Temperature Coefficient - RTD
Temperature Range
- -40° to 105° C (-40° to 221° F) - Thermistor/RTD
Tube Connection
- 1/4” O.D. Tube