HEL-775-A-T-0 Datasheet, PDF (1/3 Pages) Honeywell Accelerometers – Temperature Sensors HEL-775 Series

Temperature Sensors HEL-775 Series
PLATINUM RTDs
FUNCTIONAL BEHAVIOR
R_T = R₀(1+AT+BT²-100CT³+CT⁴)
RT = Resistance (W) at temperature T (°C)
R₀ = Resistance (W) at 0°C
T = Temperature in °C
A=a+ad
100
B = -a d
100²
C_T<0 =-a b
100⁴
CONSTANTS
Alpha, α (°C^-1) 0.003750
±0.000029
Delta, δ (°C) 1.605 ± 0.009
Beta, β (°C) ^∗ 0.16
A (°C^−1 )
3.81x10^-3
B (°C^−2 )
-6.02x10^-7
C (°C^−4 )^∗
-6.0x10^-12
∗_{Both β = 0 and C = 0 for T > 0°C}
0.003850
±0.000010
1.4999 ± 0.007
0.10863
3.908x10^-3
-5.775x10^-7
-4.183x10^-12
CAUTION
PRODUCT DAMAGE
The inherent design of this component causes it to be
sensitive to electrostatic discharge (ESD). To prevent
ESD-induced damage and/or degradation, take normal
ESD precautions when handling this product.
ACCURACY VS TEMPERATURE
EL-700 platinum RTDs are available in two base
resistance trim tolerances: ±0.2% or ±0.1%. The
corresponding resistance interchangeability and tempera-
ture accuracy for these tolerances are:
Trim
Tolerance
Temperature
(°C)
-200
-100
0
100
200
300
400
500
600
Standard
±0.2%
±∆R
±∆T
(Ω)
(°C)
6.8
1.6
2.9
0.8
2.0
0.5
2.9
0.8
5.6
1.6
8.2
2.4
11.0
3.2
12.5
4.0
15.1
4.8
Optional
±0.1%
±∆R
±∆T
(Ω)
(°C)
5.1
1.2
2.4
0.6
1.0
0.3
2.2
0.6
4.3
1.2
6.2
1.8
8.3
2.5
9.6
3.0
10.4
3.3
MOUNTING DIMENSIONS (for reference only) mm/in
HEL-775-A HEL-775-B
3,81
0.15
2,54
0.10
5,1
0.20
1
0,64
0.025
2,54
0.10
MAX.
12,7
0.50
MIN.
0,25
0.01
REF.
1 _{PROTECTIVE SEALANT}
MICRO SWITCH Sensing and Control