RdF STRAPON® Wide Range Surface RTD

PNs 22391, 22392, 22393

Platinum Surface RTD with wide temperature range
Non-penetrating design with hardware options for easy installation
Sensor sealed for condensing or wet environments
Stable: drift is less than ±0.05°C over 5 years
Permanently bonded assemblies with metal contact plate under sensor and high-performance bonded fiber insulation over sensor
Mount by bonding (22391), bolt(22392) or strap (22393)

Performance Specifications

Wide Operating Temperature Range
–200°C to +232°C (–320°F to +450°F)
continuous as mounted.
260°C (500°F) short term clamped.

Sensing Element
International grade thin film platinum α= 0.00385 Ω/Ω/°C or
Industrial grade thin film platinum α = 0.00375 Ω/Ω/°C

Ice Point Resistance
100±0.12Ω or 1000±1.2Ω;
Class B (±0.12%)

Interchangeability
±0.3°C or 0.6% of temperature IEC 751
Class B above –50°C

Long Term Stability
Less than 0.05°C drift per 5 years above –50°C

Time Constant
Less than 1/2 second for the sensor
to reach 63.2% of a change in temperature

Self-Heating
The bare sensor will rise less than 1°C
while dissipating 25 milliwatts mounted.

Insulation Resistance
The insulation resistance between outer sensor insulation
clamped between two metal plates and the common leadwire is:
50 megohms minimum with 50 Volts DC applied.

Maximum Current
100Ω=5mA, 1000Ω=2mA
for limited self heating

Recommended Current
1mA

Body Material
Stainless Steel and flexible
polyimide fiber insulation

Lead Material
Stranded copper cable
insulated as follows:
22 AWG tin-plated, (2-wire) FEP Teflon® over each twisted
black/red, FEP overall. 24 AWG tin-plated, (3-wire) FEP Teflon® over each twisted
white/2 red, FEP overall 26 AWG nickel-plated, PFA Teflon®, 2 white, 2 white/brown,
or 2 white/2 red fused parallel

Teflon® and Kapton® are registered trademarks of Dupont

Dimensional Drawing

Ordering Specifications

  
                  22391	  Strapon® for adhesive or tape mounting

                  22392	  Strapon® for bolt down with 3/16, #8 or 4.5mm

                  22393	  Strapon® for curved surface >2" dia. with pipe clamp, can bolt down
            
                    Resistance Specification @ 0°C

                    T01	   100Ω ± 0.12Ω@ 0°C, (α = 0.00385Ω/Ω/°C)Thin Film (IEC 751)

                    T10	   1000Ω ± 1.2Ω@ 0°C, (α = 0.00385Ω/Ω/°C) Thin Film (IEC 751))

                    H10	   1000Ω ± 1.2Ω@ 0°C, (α =0.00375Ω/Ω/°C) Thin Film (Industrial)
            
                      Number of Leads:

                      A       2 wire

                      B       3 wire

                      C       4 wire
            
                    Lead Length in inches (12 inches standard)
            
                   Pipe Clamp – 22393 Only
            
                0

                1

                2

                3

                4

                5

                No Clamp

                Pipe Dia. 2" to 8 (54825-1) 

                Pipe Dia. 8" to 10"  (54825-2) 

                Pipe Dia. 10" to 16"  (54825-3) 

                Pipe Dia. 16" to 24" (54825-4)

                Pipe Dia. 24" to 34" (54825-5)
            
                            22391
                            
            -
            
                            T01
                            
            -
            
                            B
                            
            -
            
                            12
                            
            -
            
            -
            
                Typical write-up for 22391

Installation Note

These Strapon® sensors are manufactured with the sensor attached to a contact shim and then overmolded with an insulating layer ready to be clamped to the surface.

When installing a Strapon® style sensor, the sensor should be tightened until the shim is firmly on the surface, but not tight enough to strain the sensing element or deform the silicone rubber. A thermal grease can be used between the surface and sensing shim to increase the thermal conductivity if desired, but it should be noted that some silicone heat sink compounds could have an adverse effect on the silicone overmold.

Strapon® Models 22393 and 26393 have an adapter and pipe clamp to facilitate installation. The adapter has a built-in stop to prevent excessive tightening of the clamp.

RTDs / Surface RTDs : STRAPON® Wide Range