ECONOMICAL RTD ELEMENTS
PLATINUM, NICKEL, NICKEL IRON
TEMPERATURE RATING UP TO 500°C
RESISTORS
w
CAPS & COILS
w
DELAY LINES
26+5-41-5
FEATURES
r
Inherent wirewound stability
r
Standard tolerance: ±1% (available to ±0.1%)
r
Resistance range: 1Ω to 1000Ω
r
High-temperature ceramic encased construction
r
Operating temperature range: -55°C to maximum listed
r
Thin-film platinum elements available (see PTF Series)
RCD
Type
PTC100PT
PTC100CPN
PTC100N
PTC100NF
PTC150PT
PTC150CPN
PTC150N
PTC50NF
PTC200PT
PTC200CPN
PTC200N
PTC200NF
High temperature RTD (Resistance Temperature Detector)
elements are designed for the toughest industrial applications.
PTC sensors feature an all-welded construction for increased
durability under stress and vibration. Wirewound element results
in exceptional stability and uniformity. Series PTC elements can
be used to sense or regulate air environments and can be
assembled into immersion probes for liquid environments (refer to
PTS Series).
d
B
↑
↓
↓
↑
←
A
→
B
±.01 [.25]
C*
Typ. [.05]
.016 [.4]
Lead Length 0.5 [12.7] min.
Resistance
Wire
Platinum
Chem. Pure Nickel
Nickel 270
Nickel Iron
Platinum
Chem. Pure Nickel
Nickel 270
Nickel Iron
Platinum
Chem. Pure Nickel
Nickel 270
Nickel Iron
Temperature
Max.
TC 3-digit
A
Coefficient
Resistance
co d e
±.060 [1.5]
0° to 100°C
(Ohms)
3850ppm
6720ppm
6000ppm
5150ppm
3850ppm
6720ppm
6000ppm
5150ppm
3850ppm
6720ppm
6000ppm
5150ppm
392
672
603
522
392
672
603
522
392
672
603
522
200
120
120
500
400
200
200
1000
400
200
200
1000
.575 [14.6]
.096 [2.44]
.575 [14.6]
.125 [3.18]
.016 [.4]
Lead Length 0.5 [12.7] min.
.675 [17.1]
.170 [4.32]
.020 [.5]
Lead Length 1.0 [25.4] min
* Lead material is nickel for minimal oxidation at high temperature on platinum elements, tinned copperweld is standard on others.
LINEARITY
4.0
WIRE COMPARISON
Wire Alloy
Platinum
CP Nickel
Nickel 270
Nickel Iron
C o st
Medium
High
Low
Low
Max. Temp.
500°C
300°C
300°C
260°C
Linearity
Excellent
F ai r
F ai r
F ai r
R/T Curve Repeatability
Excellent
Good
F ai r
Good
3.5
CP NICKEL
RESISTANCE RATIO R
T
R
O
3.0
NICKEL 270
2.5
NICKEL IRON
2.0
THERMAL RESPONSE (TIME CONSTANT)
varies with different element sizes, resistance values, and wire alloy.
Typical time constant for PTC 150 PT 100 ohm is 2.2 seconds in water moving 3ft./sec. Consult factory for
particular specifications.
SELF-HEATING
is contingent upon resistance value, alloy, and element size. Typical self-heating for PTC 150 PT
100 ohm is 65 mW/°C in water moving at 3ft./sec. Consult factory for particular specifications.
INTERCHANGEABILITY
- The strain-free design of RCD sensors insures maximum repeatability. This characteris-
tic is degraded by lot-to-lot inconsistencies of the various wire alloys. Platinum being extremely consistant allows
the best interchangeability characteristics. Consult factory for specific data based on particular alloy and
tolerance.
SHOCK AND VIBRATION
- PTC elements withstand 100 G’s sinewave shock for 3 cycles at 10 milliseconds,
and withstand vibration 10Hz to 2200Hz at 20 G’s.
COPPER
PLATINUM
1.5
1.0
0
0
32
100
212
200 300 400
392 572 752
500 600
932 1112
P/N DESIGNATION:
PTC150PT -
1000 -
F
B
392
TEMPERATURE
°C
°F
RCD Type
4-Digit Resis. Code:
3 signif. digits
& multiplier (1R00=1Ω, 10R0=10Ω, 1000=100Ω, etc.)
Tolerance Code:
F=1%, D=0.5%, C=0.25%, B=0.1%
Packaging:
B = Bulk
Temp. Coefficient:
3 digit code--rounded to nearest 100 (392=3850ppm, 603=6000ppm, etc.)
PTC ceramic encased elements can be assembled into stainless steel
sheaths for severe environmental requirements. These probes (PTS
Series) are moistureproof and pressure tight and in many instances may
be directly inserted into process lines or thermowells for precise
temperature readings. Series PTS are available in any standard PTC
resistance value and temperature coefficient, in .125 [3.18], .187 [4.75],
.250 [6.35] diameters. Teflon insulated leads are standard. Other
insulations available for highest temperature requirements, 3-terminal, 4-
terminal configurations available. Probe lengths available from 0.5
[12.7] to 18 [457].
Consult factory for list of standard probe
styles including surface measurement, flange mount, screw
mount, etc.
2655-41-5
OPTIONAL
RTD PROBES
TEMPERATURE RATING UP TO 500°C
ä
RCD Components Inc.,
520 E. Industrial Park Dr., Manchester, NH, USA 03109
Tel: (603) 669-0054 Fax:(603) 669-5455 E-mail: sales@rcdcomponents.com
www.rcdcomponents.com
FA specifications subject to change without notice
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