Datasheet

Page 10-5
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Specifications subject to change
THERMAL-
RIBBONS
Strip Sensing Th ermal- Ribbons™
Dimensions
W x L x T
max
Element
options
Insulation Temperature
range
Leadwires Time
constant*
Features Model
0.375 x 4.00 x 0.075"
(9.5 x 101.6 x 1.9 mm)
PB22
Silicone
rubber with
polyimide
backing
-62 to 220°C
-80 to 428°F
AWG 26,
PTFE
insulated
0.6 sec.
Platinum PD
accuracy
S34
PD12
PE22
S386
0.375 x 4.00 x 0.065"
(9.5 x 101.6 x 1.7 mm)
FA Polyimide
-200 to 200°C
-328 to 392°F
0.2 sec.
Wire-wound
nickel-iron for
high resistance,
thin element
S35
FA Mylar
-100 to 150°C
-148 to 302°F
0.3 sec.
Wire-wound
nickel-iron,
low cost
S2
0.50 x 1.25 x 0.050"
(12.7 x 31.8 x 1.3 mm)
PA, PE,
CA, NA
Polyimide
-73 to 200°C
-100 to 392°F
0.17 sec.
Easy motor
installations
S3238
Overview
These models average temperatures along their length to eliminate point measurement
errors. Wrap them around cylinders or adhere them to flat surfaces.
Specifications
Model S3238
Model S3238 is specially designed to sense stator temperatures
in motors and generators. An alternative to the “stick” sensors,
the S3238 mounts on the end turns of stator windings and pro-
vides an easy way to add overtemperature protection when
the stator is not being rewound.
S3238 specification and order options
S3238
Model number S3238
PA
Sensing element from table
Y
Number of leads:
Y = 2 leads (not available on CA)
Z = 3 leads
X = 4 leads
T
Lead insulation:
T = PTFE
K = polyimide
TS = SS braid over PTFE
36
Lead length in inches
36" stocked
U
Lead configuration:
T = Twisted
U = Untwisted
A
Adhesive backing:
A = No adhesive
B = Pressure-sensitive adhesive (PSA)
S3238PAYT36UA = Sample part number
S34
Model number from table
(except S3238)
PB22
Sensing element from table
Y
Number of leads:
Y = 2 leads
Z = 3 leads (required on CA)
X = 4 leads (PD only)
36
Lead length in inches
36" stocked (42" on S2)
A
Adhesive backing:
A = No adhesive
B = Pressure-sensitive adhesive (PSA)
S34PB22Y36A = Sample part number
Notes: T
max
is measured over the lead bulge. *Time constant is in water at 1 m/sec.
Sensing element specifications** Code
Platinum (0.00391 TCR) 100 Ω ±0.5% at 0°C
PA
Platinum (0.00391 TCR) 100 Ω ±0.22% at 0°C
PB22
Platinum (0.00385 TCR) 100 Ω ±0.12% at 0°C
(EN60751, Class B)
PD12
Platinum (0.00385 TCR) 100 Ω ±0.5% at 0°C
PE
Platinum (0.00385 TCR) 100 Ω ±0.22% at 0°C
PE22
Nickel-iron (0.00518 TCR) 604 Ω ±0.26% at 0°C
FA
Copper 427 10 Ω ±0.20% at 25°C
CA
Nickel 672 120 Ω ±0.3% at 0°C
NA
Specification and order options
** See table above for element options on each model.
Notes: PSA reduces temperature range to -20 to 177°C
(-4 to 350°F) and adds 0.005" (0.1 mm) to thickness.